原木材积计算公式表
原木材积表
原木材积表(本标准适用于所有树种的原木材积计算)原木材积表本标准适用于所有树种的原木材积计算。
1. 检尺径自4~12cm的小径原木材积由公式V=0.7854L{D+0.45L+0.2}2 ÷10000 确定2.检尺径自14cm以上的原木材积由公式V=0.7854L{D+0.5L+0.005L2+0.000125L ·(14-L)2·(D-10)2÷10000 确定。
两式中:V 材积,m3;L 检尺长,m;D 检尺径,cm.3. 原木的检尺长、检尺径按144.2-84 《原木检验尺寸检量》的规定检量。
4. 检尺径4~6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
检尺2.0 2.2 2.4 2.5 2.6 2.83.0 3.2 3.44 0.0041 0.0047 0.0053 0.0056 0.0059 0.0066 0.0073 0.0080 0.008860.00790.0089 0.0100 0.0105 0.0111 0.0122 0.0134 0.0147 0.01608 0.013 0.015 0.016 0.017 0.018 0.020 0.021 0.023 0.02510 0.019 0.022 0.024 0.025 0.026 0.029 0.031 0.034 0.03712 0.027 0.030 0.033 0.035 0.037 0.040 0.043 0.047 0.05014 0.036 0.040 0.045 0.047 0.049 0.054 0.058 0.063 0.06816 0.047 0.052 0.058 0.060 0.063 0.068 0.075 0.081 0.08718 0.059 0.065 0.072 0.076 0.079 0.086 0.093 0.101 0.10820 0.072 0.080 0.088 0.092 0.097 0.105 0.114 0.123 0.13222 0.086 0.096 0.106 0.111 0.116 0.126 0.137 0.147 0.15824 0.102 0.114 0.125 0.131 0.137 0.149 0.161 0.174 0.18626 0.120 0.133 0.146 0.153 0.160 0.174 0.188 0.203 0.21728 0.138 0.154 0.169 0.177 0.185 0.201 0.217 0.234 0.25030 0.158 0.176 0.193 0.202 0.211 0.230 0.248 0.267 0.28632 0.180 0.199 0.219 0.230 0.240 0.260 0.281 0.302 0.32434 0.202 0.224 0.247 0.258 0.270 0.293 0.316 0.340 0.36436 0.226 0.251 0.276 0.289 0.302 0.327 0.353 0.380 0.40638 0.252 0.279 0.307 0.321 0.335 0.364 0.393 0.422 0.451径,cm材积,m3检尺长,m续)检尺检尺长,m径,cm 2.0 2.2 2.4 2.5 2.6 2.8 3.0 3.2 3.4 材积,m362 0.661 0.733 0.804 0.841 0.877 0.950 1.023 1.097 1.172 64 0.704 0.780 0.857 0.895 0.934 1.011 1.089 1.168 1.247 66 0.749 0.829 0.910 0.951 0.992 1.074 1.157 1.241 1.325 68 0.794 0.880 0.966 1.009 1.052 1.140 1.227 1.316 1.405 70 0.841 0.931 1.022 1.068 1.114 1.207 1.300 1.393 1.487 72 0.890 0.985 1.081 1.129 1.178 1.276 1.374 1.473 1.572 74 0.939 1.040 1.141 1.192 1.244 1.347 1.450 1.554 1.659 76 0.990 1.096 1.203 1.257 1.311 1.419 1.528 1.638 1.748 78 1.043 1.154 1.267 1.323 1.380 1.494 1.609 1.724 1.840 80 1.096 1.214 1.332 1.391 1.451 1.571 1.691 1.812 1.934 82 1.151 1.274 1.399 1.461 1.523 1.649 1.776 1.903 2.030 84 1.208 1.337 1.467 1.532 1.598 1.730 1.862 1.995 2.129 86 1.265 1.401 1.537 1.605 1.674 1.812 1.951 2.090 2.230 88 1.325 1.466 1.609 1.680 1.752 1.896 2.042 2.187 2.334 90 1.385 1.533 1.682 1.757 1.832 1.983 2.134 2.287 2.439 92 1.447 1.601 1.757 1.835 1.913 2.071 2.229 2.388 2.548 94 1.510 1.671 1.833 1.915 1.997 2.161 2.326 2.492 2.658 96 1.574 1.742 1.911 1.996 2.082 2.253 2.425 2.598 2.771 98 1.640 1.815 1.991 2.080 2.169 2.347 2.526 2.706 2.996 100 1.707 1.889 2.073 2.165 2.257 2.443 2.629 2.816 3.004 102 1.776 1.965 2.156 2.252 2.348 2.540 2.734 2.928 3.123 104 1.846 2.042 2.240 2.340 2.440 2.640 2.841 3.043 3.246 106 1.917 2.121 2.327 2.430 2.534 2.742 2.950 3.160 3.370 108 1.990 2.202 2.415 2.522 2.629 2.845 3.062 3.279 3.497 110 2.064 2.283 2.504 2.615 2.727 2.950 3.175 3.400 3.6264 68 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 m30.00960.01730.0270.0400.0540.0730.0930.1160.1410.1690.1990.2320.2670.3050.3450.3880.4330.4810.5310.01040.1870.0290.0420.0580.0780.1000.1240.1510.1800.2120.2470.2840.3240.3670.4120.4600.5100.5640.01130.02010.0310.0450.0620.0830.1060.1320.1600.1910.2250.2520.3020.3440.3890.4370.4870.5410.5970.01220.02160.0340.0480.0650.0890.1130.1401.1700.2030.2390.2770.3190.3640.4110.4610.5150.5710.6300.01320.02310.0330.0510.0690.0940.1200.1480.1800.2140.2520.2930.3370.3830.4330.4860.5420.6010.6630.01420.02470.0380.0540.0740.1000.1260.1560.1900.2260.2660.3080.3540.4040.4560.5110.5700.6320.6970.01520.02630.0400.0580.0780.1050.1340.1650.2000.2380.2790.3240.3720.4240.4790.5390.5980.6630.7310.01630.02800.0430.0610.0820.1110.1410.1740.2100.2500.2930.3400.3910.4441.5020.5620.6260.6940.7650.01750.02980.0450.0640.0860.1170.1480.1820.2210.2620.3080.3560.4090.4650.5250.5880.6550.7250.80042 44 46 48 50 0.5830.6380.6960.7560.8190.6190.6780.7390.8020.8690.6560.7170.7820.8490.919.692.757.825.896.9690.7290.7970.8680.9421.0200.7660.8370.9120.9901.0710.8030.8770.9551.0371.1220.8400.9180.9991.0841.1730.8770.9591.0431.1321.22452 54 56 58 60 0.8840.9511.0211.0941.1690.9381.0091.0831.1601.2390.9921.0671.1451.2261.3101.0461.1251.2081.2931.3811.1001.1841.2701.3601.4521.1551.2421.3331.4271.5241.2101.3011.3961.4941.5951.2651.3601.4591.5611.6671.3201.4191.5221.6291.739原木材积表2检尺检尺长,m5.4 5.6 5.86.0 6.2 6.4 6.6 6.87.0 材积,m3 径,cm 4 6 8 1012 14 16 18.2022 24 26 28 3032 34 36 38 40 42 44 46 48 50 52 54 56 58 60 0.01860.03160.0480.0680.0910.1230.1550.1910.2310.2750.3220.3730.4270.4860.5480.6140.6830.7570.8340.9150.9991.0881.1801.2761.3751.4781.5861.6961.8110.01990.03340.0510.0710.0950.1290.1630.2010.2420.2870.3360.3890.4460.5070.5710.6400.7120.7880.8690.9531.0401.1321.2281.3271.4311.5381.6491.7641.883.0211.0354.053.0750.1000.1360.1710.2100.2530.3000.3510.4060.4650.5280.5950.6660.7410.8200.9030.9901.0821.1771.2761.3791.4861.5971.7121.8321.9550.02240.03730.0560.0780.1050.1420.1790.2190.2640.3130.3660.4230.4840.5490.6190.6920.7700.8520.9381.0281.1231.2211.3241.4311.5421.6571.7761.8992.0270.02380.03940.0590.0820.1090.1490.1870.2290.2750.3260.3800.4400.5030.5710.6430.7190.7990.8840.9731.0671.1641.2661.3721.4831.5971.7161.8391.9672.0990.02520.04140.0620.0860.1140.1560.1950.2380.2860.3390.3960.4570.5220.5920.6670.7460.8290.9161.0081.1051.2061.3111.4211.5351.6531.7761.9032.0352.1710.02660.04360.0650.0900.1190.1620.2030.2480.2980.3520.4110.4740.5420.6140.6910.7720.8580.9491.0441.1431.2471.3561.4691.5871.7091.8351.9672.1022.2430.02810.04580.0680.0940.1240.1690.2110.2580.3090.3650.4260.4910.5610.6360.7150.7990.8880.9811.0791.1821.2891.4011.5181.6391.7651.8953.0302.1702.3150.02970.04810.0710.0980.1300.1760.2200.2680.3210.3790.4420.5090.5810.6580.7400.8270.9181.0141.1151.2211.3311.4461.5661.6911.8211.9552.0942.2382.387检尺径,cm 检尺长,m5.4 5.6材积,m35.862 1.929 2.005 2.082检尺检尺长, m7.2 7.4径,cmA圆材材积计算公式(补充件)A.1 检尺长超出原木材积表所列范围而又不符合原条标准的特殊用途圆材,其材积按下式计V=0.8L (D+0.5L)2÷ 10000A. 2GB144.2-84 《原木检验尺寸检量》的规定检量。
常用木材材积表
1木材材积表( 1 ) 原木材积表注:1. 计算公式:a. 检尺径4~ b. 检尺径 ≥14cm :V = 0.00007854 L [ D + 0.5L + 0.005 L 2 + 0.000124 L ( 14 – L ) 2 ( D – 10 ) ] 22. 检尺规则:a. 检尺长:a . 按原木两端直线长度量取;b . 小于检尺径的梢端舍去不计算c . 端面无垂直断面者由断口内缘量取b. 检尺径:a . 由梢端垂直截面量取;量取方法:·按短径计算:短径<26cm 、且长短径差≤2cm≥26cm 、且长短径差≤4cm·按均径计算:短径<26cm 、且长短径差>2cm≥26cm 、且长短径差>4cmc. 异形材:a . 异径材:按原木正常部位最细处检量..b . 异端材;检量方法按标准方法计算..c . 双杈材:只检量其中一主枝另枝按节子处理..d . 劈裂材:·未脱离:≤10% 忽略不计.>10% 须减去所通过裂缝长一半处的裂缝垂直宽度·己脱离:小头:≤10% 忽略不计>10% 采取让尺:让径 按均径计算.. 让长 检尺径在实际检尺长位置量取大头:计算均径值:≥检尺径 忽略不计.<检尺径 以大头为检尺径 可采取让尺处理.b. 检尺径≥10cm:V = 0.000039 ( 3.5 + D ) 2 (0.48 + L )2. 检尺规则:a. 检尺长:a. 按杉原条梢径≥6cm处的长度量取.b. 小于检尺径的梢端舍去不计算.c. 端面无垂直断面者由断口内缘量取.b. 检尺径:a. 按根端2.5m处均径计算.b. 检量处异形则向梢端移至正常部位量取.c. 劈裂材:a. 梢端:检量方法按标准方法计算.b. 根端:≥检尺径忽略不计..<检尺径劈裂长≤2.5m 则检尺径不变检尺长让去小于检尺径的根端>2.5m 未脱落:则检尺径不变让去劈裂长一半为检尺长(小于5m则按小原条计算)..已脱落:则检尺径按均值计算检尺长不变木材材积表2005-07-20|根据现行的中华人民共和国国家标准GB4814-84《原木材积表》、GB4815-84《杉原条材积表》、GB449-84《锯材材积表》推算得出的,供各部门的木材经销、木材检量等人员用于迅速查定各类木材的累计材积数。
原木材积计算公式(表格资料)
在GB4814-84《原木材积表》标准中规定的原木材积计算公式是:检尺径自4-12cm的小径原木材积公式:V=0.7854L(D+0.45L)0.2)2÷10000 ---- (5-17)检尺径自14cm以上的原木材积公式:V=0.7854L{D+0.5L+0.005L2++0.000125L(14-L)2(D-10)÷10000 --- (5-18)检尺长超出原木材积表所列范围又不符合原条标准的特殊用途圆材,其材积按下式计算。
V=0.8L(D+0.5L)2÷10000 --- (5-19)以上三式中:V---原木材积(m3);L---原木检尺长(m);D---原木检尺径(cm)。
另外,检尺径4-6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
{例1}有一根紫檀圆木,检尺长2m,检尺径10cm,求其材积是多少?解:将L=2m,D+10cm,代入公式(5-17)得:V=0.7854×2(10+0.45×2+00.2)2÷10000=0.7854×2×11.12÷10000=0.7854×2×123.21÷10000=0.0194(m3)答:该紫檀原木的材积是0.019m3.{例2}有一根杉木,检尺长2m,检尺径20cm,求其材积是多少?解:将L=2,D=20cm代入公式(5-18)得:V=0.7854×2{20+0.5×2+0.005×22+0.000125×2(14-2)2(20-10)}2÷10000=0.072(m3)答:此根杉木原木的材积是0.072m3.{例子}有一根原木,检尺长14m,检尺径40cm,计算该原木的材积。
解:将L=14m, D=40cm, 代入公式(5-19) 得:V=0.8×14×(40+0.5×14)2÷10000=11.2×472÷10000= 2.47(m3)如果需要计算的不是一根原木的材积数字,而是同一个长度中各个径级的材积数字,我们就可以采用一种简捷而精确的计算方法如例4。
圆木材材积表
圆木材材积表
原木形状因树种、生长立条件的不同而变化较大。
原木因为树干畸形怪状,要精确计算原木的材积并不容易。
在GB4814-84《原木材积表》标准中,规定的原木材积计算公式是:
V---原木材积(m3);L---原木检尺长(m);D---原木检尺径(cm)
检尺径自4-12cm的小径原木材积公式:
V=0.7854L(D+0.45L)0.2)2÷10000
检尺径自14cm以上的原木材积公式:
V=0.7854L{D+0.5L+0.005L2++0.000125L(14-L)2(D-10)÷10000
检尺长超出原木材积表所列范围又不符合原条标准的特殊用途圆材,其材积按下式计算。
V=0.8L(D+0.5L)2÷10000
另外,检尺径4-6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
原木材积表标准
中华人民共和国国家标准——原木材积表
本标准适用于所有树种的原木材积计算。
1.检尺径自4~12cm的小径原木材积由公式0.7854L{D+0.45L+0.2}2÷10000确定
2.检尺径自14cm以上的原木材积由公式
V=0.7854L{D+0.5L+0.005L2+0.000125L·(14-L)2·(D-10)2÷10000确定。
两式中:V----材积,m3;L----检尺长,m;D----检尺径,cm.
3.原木的检尺长、检尺径按14
4.2-84《原木检验尺寸检量》的规定检量。
4.检尺径4~6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
附录A
圆材材积计算公式(补充件)
A.1检尺长超出原木材积表所列范围而又不符合原条标准的特殊用途圆材,其材积按下式计算:
V=0.8L(D+0.5L)2÷10000
A. 2圆材的检尺长、检尺径按GB144.2-84《原木检验尺寸检量》的规定检量。
A.2.1尺寸进级及公差。
A.2.1.1检尺径:按2cm进级。
A.2.1.2检尺长的进级范围及长级公差允许范围由供需双方商定。
A.3缺陷限度及分级标准由供需双方商定。
A.4地方煤矿用的坑木材积按下表计算:
附加说明:
本标准由中华人民共和国林业部提出
本标准由木材基础标准起草小级起草。
原木材积表整理
原木材积表(本标准适用于所有树种的原木材积计算)原木材积表本标准适用于所有树种的原木材积计算。
1. 检尺径自4~12cm 的小径原木材积由公式 V=0.7854L{D+0.45L+0.2}2 - 10000 确定2. 检尺径自14cm 以上的原木材积由公式V=0.7854L{D+0.5L+0.005L2+0.000125L • (14丄)2 • (D-10) 2-10000 确定。
两式中:V----材积,m3 L----检尺长,m D----检尺径,cm. 3. 原木的检尺长、检尺径按144.2-84《原木检验尺寸检量》的规定检量。
4.检尺径4~6cm 的原木材积数字保留四位小数, 检尺径自8cm 以上的原木材积数字,保留三位 小数。
检尺2.0 2.2 2.4 2.5 2.6 2.83.0 3.2 3.4 4 0.0041 0.0047 0.0053 ] 0.0056 0.0059 H 0.0066 0.0073 0.0080 0.0088 60.0079 0.0089 0.0100 0.0105 0.0111 0.0122 0.0134 0.0147 0.0160 8 0.013 0.015 0.016 0.017 0.018 0.020 0.021 0.023 0.025 10 0.019 0.022 0.024 0.025 0.026 0.029 0.031 0.034 0.037 12 0.027 0.030 0.033 0.035 0.037 0.040 0.043 0.047 0.050 14 0.036 0.040 0.045 0.047 0.049 0.054 0.058 0.063 0.068 16 0.047 0.052 0.058 0.060 0.063 0.068 0.075 0.081 0.087 18 0.059 0.065 0.072 0.076 0.079 0.086 0.093 0.101 0.108 20 0.072 0.080 0.088 0.092 0.097 0.105 0.114 0.123 0.132 22 0.086 0.096 0.106 0.111 0.116 0.126 0.137 0.147 0.158 24 0.102 0.114 0.125 0.131 0.137 0.149 0.161 0.174 0.186 26 0.120 0.133 0.146 0.153 0.160 0.174 0.188 0.203 0.217 28 0.138 0.154 0.169 0.177 0.185 0.201 0.217 0.234 0.250 30 0.158 0.176 0.193 0.202 0.211 0.230 0.248 0.267 0.286 32 0.180 0.199 0.219 0.230 0.240 0.260 0.281 0.302 0.324 34 0.202 0.224 0.247 0.258 0.270 0.293 0.316 0.340 0.364 36 0.226 0.251 0.276 0.289 0.302 0.327 0.353 0.380 0.406 380.252」 0.2790.307」 0.321」 0.335」0.3640.393」 0.422」0.451径,cm材积,m3 检尺长,m(续)检尺检尺长,m径,cm 2.0 2.2 2.4 2.5 2.6 2.8 3.0 3.2 3.4 材积,m362 0.661「 0.733 H 0.804 0.841 n0.877 ”0.950 1.023 1.097 1.172 64 0.704 0.780 0.857 0.895 0.934 1.011 1.089 1.168 1.247 66 0.749 0.829 0.910 0.951 0.992 1.074 1.157 1.241 1.325 68 0.794 0.880 0.966 1.009 1.052 1.140 1.227 1.316 1.405 70 0.841 0.931 1.022 1.068 1.114 1.207 1.300 1.393 1.487 72 0.890 0.985 1.081 1.129 1.178 1.276 1.374 1.473 1.572 74 0.939 1.040 1.141 1.192 1.244 1.347 1.450 1.554 1.659 76 0.990 1.096 1.203 1.257 1.311 1.419 1.528 1.638 1.748 78 1.043 1.154 1.267 1.323 1.380 1.494 1.609 1.724 1.840 80 1.096 1.214 1.332 1.391 1.451 1.571 1.691 1.812 1.934 82 1.151 1.274 1.399 1.461 1.523 1.649 1.776 1.903 2.030 84 1.208 1.337 1.467 1.532 1.598 1.730 1.862 1.995 2.129 86 1.265 1.401 1.537 1.605 1.674 1.812 1.951 2.090 2.230 88 1.325 1.466 1.609 1.680 1.752 1.896 2.042 2.187 2.334 90 1.385 1.533 1.682 1.757 1.832 1.983 2.134 2.287 2.439 92 1.447 1.601 1.757 1.835 1.913 2.071 2.229 2.388 2.548 94 1.510 1.671 1.833 1.915 1.997 2.161 2.326 2.492 2.658 96 1.574 1.742 1.911 1.996 2.082 2.253 2.425 2.598 2.771 98 1.640 1.815 1.991 2.080 2.169 2.347 2.526 2.706 2.996 100 1.707 1.889 2.073 2.165 2.257 2.443 2.629 2.816 3.004 102 1.776 1.965 2.156 2.252 2.348 2.540 2.734 2.928 3.123 104 1.846 2.042 2.240 2.340 2.440 2.640 2.841 3.043 3.246 106 1.917 2.121 2.327 2.430 2.534 2.742 2.950 3.160 3.370 108 1.990 2.202 2.415 2.522 2.629 2.845 3.062 3.279 3.497 110 2.064 12.283 2.504 2.615 12.727」 2.950 13.175 3.400 3.62668 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40m30.00960.01730.0270.0400.0540.0730.0930.1160.1410.1690.1990.2320.2670.3050.3450.3880.4330.4810.5310.01040.1870.0290.0420.0580.0780.1000.1240.1510.1800.2120.2470.2840.3240.3670.4120.4600.5100.5640.01130.02010.0310.0450.0620.0830.1060.1320.1600.1910.2250.2520.3020.3440.3890.4370.4870.5410.5970.01220.02160.0340.0480.0650.0890.1130.1401.1700.2030.2390.2770.3190.3640.4110.4610.5150.5710.6300.01320.02310.0330.0510.0690.0940.1200.1480.1800.2140.2520.2930.3370.3830.4330.4860.5420.6010.6630.01420.02470.0380.0540.0740.1000.1260.1560.1900.2260.2660.3080.3540.4040.4560.5110.5700.6320.6970.01520.02630.0400.0580.0780.1050.1340.1650.2000.2380.2790.3240.3720.4240.4790.5390.5980.6630.7310.01630.02800.0430.0610.0820.1110.1410.1740.2100.2500.2930.3400.3910.4441.5020.5620.6260.6940.7650.01750.02980.0450.0640.0860.1170.1480.1820.2210.2620.3080.3560.4090.4650.5250.5880.6550.7250.80042 44 46 48 50 0.5830.6380.6960.7560.8190.6190.6780.7390.8020.8690.6560.7170.7820.8490.919.692.757.825.896.9690.7290.7970.8680.9421.0200.7660.8370.9120.9901.0710.8030.8770.9551.0371.1220.8400.9180.9991.0841.1730.8770.9591.0431.1321.22452 54 56 58 60 0.8840.9511.0211.0941.1690.9381.0091.0831.1601.2390.9921.0671.1451.2261.3101.0461.1251.2081.2931.3811.1001.1841.2701.3601.4521.1551.2421.3331.4271.5241.2101.3011.3961.4941.5951.2651.3601.4591.5611.6671.3201.4191.5221.6291.739原木材积表2检尺径,cm 检尺长,m3.6 3.8材积,m34.0 4.2 4.4 4.6 4.85.0 5.21.246 1.3211.326 1.4061.409 1.4931.494 1.5831.581 1.6761.671 1.7711.764 1.8691.859 1.9691.9562.0732.056 2.1787072 74 76 78 80 1.397 1.486 1.578 1.673 1.771 1.8711.9752.081 2.189 2.30182 2.158 84 2.263 86 2.371 88 2.480 90 2.593 E.287.398.511.627.7462.4152.5322.6522.7752.90092 2.707 94 2.825 96 2.945 98 3.067 100 3.192 2.8682.9923.1193.2483.3803.0283.1593.2933.4293.569102 3.319 104 3.449 106 3.581 108 3.716 110 3.853 3.5153.6523.7923.9344.0803.7113.8554.0034.1534.306112 3.992 114 4.135 116 4.279 118 .426 120 .576 4.2274.3784.5314.6864.8454.4624.6214.7824.9475.1131.4721.5661.6631.7631.8661.9722.0802.1922.3062.4242.5442.6672.7932.9923.0543.1893.3273.4673.6113.7573.9074.0594.2144.3724.5334.6974.8645.0345.2075.3821.5481.6471.7491.8541.9612.0722.1862.3032.4242.4572.6732.8022.9343.0703.2083.3503.4943.6423.7923.9464.1034.2634.4254.5914.7604.9325.1075.2855.4665.6511.6241.7281.8341.9442.0572.1732.2922.4152.5412.6702.8022.9373.0763.2173.3623.5103.6623.8163.9744.1354.2994.4664.6364.8104.9875.1675.3505.5365.7265.9191.7001.8081.9202.0342.1522.2742.3992.5272.6582.7932.9313.0723.2173.3653.5163.6713.8293.9904.1554.3234.4944.6694.8475.0285.2135.4015.5925.7875.9856.1861.7761.8892.0052.1252.2482.3752.5052.6382.7752.9163.0603.2073.3583.5123.6703.8313.9964.1644.3364.5114.6904.8725.0585.2475.4395.6355.8346.0376.2446.4531.8531.9702.0912.2162.3442.4762.6112.7502.8933.0393.1893.3423.4993.6603.8243.9924.1634.3384.5174.6994.8855.0745.2675.4645.6645.8686.0766.2876.5026.720检尺径,4 6 8 10 材积,m3 0.0186 0.0316 0.048 0.068 0.0199 0.03340.0510.071 .0211.0354 .053.075 0.0224 0.0373 0.056 0.078 .0238 .0394 .059 .082 0.0252 0.0414 0.062 0.086 0.0266 0.0436 0.065 0.090 0.0281 0.0458 0.068 0.094 0.0297 0.0481 0.071 0.098 12 14 16 18. 20 0.091 0.123 0.155 0.191 0.231 0.095 0.129 0.163 0.201 0.242 0.100 0.136 0.171 0.210 0.253 0.105 0.142 0.179 0.219 0.264 .109 .149 .187 .229 .275 0.114 0.156 0.195 0.238 0.286 0.119 0.162 0.203 0.248 0.298 0.124 0.169 0.211 0.258 0.309 0.130 0.176 0.220 0.268 0.321 22 24 26 28 30 0.275 0.322 0.373 0.427 0.486 0.287 0.336 0.389 0.446 0.507 0.300 0.351 0.406 0.465 0.528 0.313 0.366 0.423 0.484 0.549.326 .380 .440 .503 .571 0.339 0.396 0.457 0.522 0.592 0.352 0.411 0.474 0.542 0.614 0.365 0.426 0.491 0.561 0.636 0.379 0.442 0.509 0.581 0.658 32 34 36 38 40 0.548 0.614 0.683 0.757 0.834 0.571 0.640 0.712 0.788 0.869 0.595 0.666 0.741 0.820 0.903 0.619 0.692 0.770 0.852 0.938 .643 .719 .799 .884 .973 0.667 0.746 0.829 0.916 1.008 0.691 0.772 0.858 0.949 1.044 0.715 0.799 0.888 0.981 1.079 0.740 0.827 0.918 1.014 1.115 42 44 46 48 50 0.915 0.999 1.088 1.180 1.276 0.953 1.040 1.132 1.228 1.327 0.990 1.082 1.177 1.276 1.379 1.028 1.123 1.221 1.324 1.431 1.067 1.164 1.266 1.372 1.483 1.105 1.206 1.311 1.421 1.535 1.143 1.247 1.356 1.469 1.587 1.182 1.289 1.401 1.518 1.639 1.221 1.331 1.446 1.566 1.691 52 54 56 581.375 1.478 1.586 1.6961.431 1.538 1.649 1.764 1.486 1.597 1.712 1.832 1.542 1.657 1.776 1.899 1.597 1.716 1.839 1.967 径, 1.653 1.776 1.9032.035 2.1711.709 1.835 1.9672.102 2.2431.765 1.895 3.0302.170 2.3151.821 1.9552.094 2.238 2.387A圆材材积计算公式(补充件)A. 1检尺长超出原木材积表所列范围而又不符合原条标准的特殊用途圆材,其材积按下式计V=0.8L (D+0.5L) 2- 10000A. 2GB144.2-84《原木检验尺寸检量》的规定检量。
原木材积表(整编汇总))
原木材积表
本标准适用于所有树种的原木材积计算。
1.检尺径自4~12cm的小径原木材积由公式
V=0.7854L{D+0.45L+0.2}2÷10000确定
2.检尺径自14cm以上的原木材积由公式
V=0.7854L{D+0.5L+0.005L2+0.000125L·(14-L)2·(D-10)2÷10000 确定。
两式中:V----材积,m3;L----检尺长,m;D----检尺径,cm.
3.原木的检尺长、检尺径按14
4.2-84《原木检验尺寸检量》的规定检量。
4.检尺径4~6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位
(续)
原木材积表2
A
圆材材积计算公式(补充件)
A.1检尺长超出原木材积表所列范围而又不符合原条标准的特殊用途圆材,其材积按下式计算:
V=0.8L(D+0.5L)2÷10000
A. 2GB144.2-84《原木检验尺寸检量》的规定检量。
A.2.1尺寸进级及公差。
A.2.1.1检尺径:按2cm进级。
A.2.1.2检尺长的进级范围及长级公差允许范围由供需双方商定。
A.3缺陷限度及分级标准由供需双方商定。
原木材积表格模板(整理))
3.2
3.4
材积,m3
4681012141618202224262830323436384042444648505254565860
0.00410.00790.0130.0190.0270.0360.0470.0590.0720.0860.1020.1200.1380.1580.1800.2020.2260.2520.2780.3060.3360.3670.3990.4320.4670.5030.5410.5800.620
两式中:V----材积,m3;L----检尺长,m;D----检尺径,cm.
3.原木的检尺长、检尺径按144.2-84《原木检验尺寸检量》的规定检量。
4.检尺径4~6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
检尺径,cm
检尺长,m
2.0
2.2
2.4
2.5
2.6
2.8
0.8770.9340.9921.0521.1141.1781.2441.3111.3801.4511.5231.5981.6741.7521.8321.9131.9972.0822.1692.2572.3482.4402.5342.6292.7272.8262.9273.0303.1353.241
0.01630.02800.0430.0610.0820.1110.1410.1740.2100.2500.2930.3400.3910.4441.5020.5620.6260.6940.7650.8400.9180.9991.0841.1731.2651.3601.4591.5611.667
0.01750.02980.0450.0640.0860.1170.1480.1820.2210.2620.3080.3560.4090.4650.5250.5880.6550.7250.8000.8770.9591.0431.1321.2241.3201.4191.5221.6291.739
树木材积计算公式
树木材积计算公式
GB4814-84《原木材积表》的规定
本标准适用于所有树种的原木材积计算。
(1)检尺径自4-12cm的小径原木材积由下式确定:
V=0.7854L(D+0.45L+0.2)²÷10000
式中:V——材积(m³);
L——检尺长(m);
D——检尺径(cm)。
(2)检尺径自14cm以上的原木材积由下式确定:
V=0.7854L[D+0.5L+0.005L²+0.000125L(14-l)²(D-10)]²÷10000
(3)原木的检尺长、检尺径按GB144.2-84《原木检验尺寸检量》的规定检量。
(4)检尺径4-6cm的原木材积数字保留四位小数,检尺径自8cm以上的原木材积数字,保留三位小数。
2、GB4814-84《原木材积表》中的附录(圆材材积计算公式)的规定
(1)检尺长超出原木材积表所列范围而又不符合原条标准的特殊用途圆材,其材积按下式计算:。
常用木材材积表
常用木材材积表木材材积表( 1 ) 原木材积表检尺径检尺长3.0 3.2 3.4 3.6 3.84.0 4.2 4.4 4.6 4.85.0 5.2 5.4 5.6 5.86.08 0.021 0.023 0.025 0.027 0.029 0.031 0.034 0.036 0.038 0.040 0.043 0.045 0.048 0.051 0.053 0.05610 0.031 0.034 0.037 0.040 0.042 0.045 0.048 0.051 0.054 0.058 0.061 0.064 0.068 0.071 0.075 0.07812 0.043 0.047 0.050 0.054 0.058 0.062 0.065 0.069 0.074 0.078 0.082 0.086 0.091 0.095 0.100 0.10514 0.058 0.063 0.068 0.073 0.078 0.083 0.089 0.094 0.100 0.105 0.111 0.117 0.123 0.129 0.136 0.14216 0.075 0.081 0.087 0.093 0.100 0.106 0.113 0.120 0.126 0.134 0.141 0.148 0.155 0.163 0.171 0.17918 0.093 0.101 0.108 0.116 0.124 0.132 0.140 0.148 0.156 0.165 0.174 0.182 0.191 0.201 0.210 0.21920 0.114 0.123 0.132 0.141 0.151 0.160 0.170 0.180 0.190 0.200 0.210 0.221 0.231 0.242 0.253 0.26422 0.137 0.147 0.158 0.169 0.180 0.191 0.203 0.214 0.226 0.238 0.250 0.262 0.275 0.287 0.300 0.31324 0.161 0.174 0.186 0.199 0.212 0.225 0.239 0.254 0.266 0.279 0.293 0.308 0.322 0.336 0.351 .036626 0.188 0.203 0.217 0.232 0.247 0.262 0.277 0.293 0.308 0.324 0.340 0.356 0.373 0.389 0.406 0.42328 0.217 0.234 0.250 0.267 0.284 0.302 0.319 0.337 0.354 0.372 0.391 0.409 0.427 0.446 0.465 0.48430 0.248 0.287 0.286 0.305 0.324 0.344 0.364 0.383 0.404 0.424 0.444 0.465 0.496 0.507 0.528 0.54932 0.281 0.302 0.324 0.345 0.357 0.389 0.411 0.433 0.456 0.479 0.502 0.525 0.548 0.571 0.595 0.61934 0.316 0.340 0.354 0.388 0.412 0.437 0.461 0.486 0.511 0.537 0.562 0.588 0.614 0.640 0.666 0.69236 0.353 0.380 0.406 0.433 0.460 0.487 0.515 0.542 0.570 0.598 0.626 0.655 0.683 0.712 0.741 0.77038 0.393 0.422 0.451 0.481 0.510 0.541 0.571 0.601 0.632 0.693 0.694 0.725 0.757 0.788 0.820 0.85240 0.435 0.466 0.498 0.531 0.564 0.597 0.630 0.663 0.697 0.731 0.765 0.800 0.834 0.869 0.903 0.9383检尺径检尺长6.2 6.4 6.6 6.87.0 7.2 7.4 7.6 7.88.0 8.59.0 9.5 10.08 0.056 0.062 0.065 0.068 0.071 0.074 0.077 0.081 0.084 0.087 0.097 0.106 0.116 0.12710 0.078 0.086 0.090 0.094 0.098 0.102 0.106 0.111 0.115 0.120 0.131 0.144 0.156 0.17012 0.109 0.114 0.119 0.124 0.130 0.135 0.140 0.146 0.151 0.157 0.171 0.167 0.203 0.21914 0.149 0.156 0.162 0.169 0.176 0.184 0.191 0.199 0.206 0.214 0.234 0.256 0.278 0.30116 0.187 0.195 0.203 0.211 0.220 0.229 0.238 0.247 0.256 0.265 0.289 0.314 0.340 0.36718 0.229 0.238 0.248 0.258 0.268 0.278 0.289 0.300 0.310 0.321 0.349 0.378 0.408 0.44020 0.275 0.286 0.298 0.309 0.321 0.333 0.345 0.358 0.370 0.383 0.415 0.448 0.483 0.51922 0.326 0.339 0.352 0.365 0.379 0.393 0.407 0.421 0.435 0.450 0.487 0.525 0.564 0.60424 0.380 0.396 0.411 0.426 0.442 0.457 0.473 0.489 0.506 0.522 0.564 0.607 0.651 0.69726 0.440 0.457 0.474 0.491 0.509 0.527 0.545 0.563 0.581 0.600 0.647 0.695 0.744 0.79528 0.503 0.522 0.542 0.561 0.581 0.601 0.621 0.642 0.662 0.687 0.735 0.789 0.844 0.90030 0.571 0.592 0.614 0.636 0.658 0.681 0.703 0.726 0.748 0.771 0.830 0.889 0.950 1.01232 0.644 0.667 0.691 0.715 0.740 0.765 0.790 0.815 0.840 0.865 0.930 0.995 1.062 1.13134 0.719 0.746 0.772 0.799 0.827 0.854 0.881 0.909 0.937 0.965 1.035 1.107 1.181 1.22536 0.799 0.829 0.858 0.888 0.918 0.948 0.978 1.008 1.039 1.069 1.147 1.225 1.305 1.38738 0.884 0.916 0.949 0.981 1.014 1.047 1.080 1.113 1.146 1.180 1.264 1.349 1.436 1.52540 0.973 1.008 1.044 1.079 1.115 1.151 1.186 1.223 1.259 1.295 1.387 1.479 1.574 1.669b. 检尺径≥14cm:V = 0.00007854 L [ D + 0.5L + 0.005 L2 + 0.000124 L ( 14 – L ) 2 ( D – 10 ) ] 22. 检尺规则:a. 检尺长:a. 按原木两端直线长度量取;b. 小于检尺径的梢端舍去不计算4c. 端面无垂直断面者由断口内缘量取b. 检尺径:a. 由梢端垂直截面量取;量取方法:·按短径计算:短径<26cm、且长短径差≤2cm≥26cm、且长短径差≤4cm·按均径计算:短径<26cm、且长短径差>2cm≥26cm、且长短径差>4cm c. 异形材:a. 异径材:按原木正常部位最细处检量..b. 异端材;检量方法按标准方法计算..c. 双杈材:只检量其中一主枝另枝按节子处理..d. 劈裂材:·未脱离:≤10% 忽略不计.>10% 须减去所通过裂缝长一半处的裂缝垂直宽度·己脱离:小头:≤10% 忽略不计>10% 采取让尺:让径按均径计算.. 让长检尺径在实际检尺长位置量取大头:计算均径值:≥检尺径忽略不计.<检尺径以大头为检尺径可采取让尺处理检尺径检尺长5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 278 0.025 0.029 0.034 0.039 0.044 0.049 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---10 0.039 0.046 0.053 0.060 0.067 0.074 0.082 0.089 0.096 0.103 0.110 0.117 0.124 0.131 0.138 0.146 0.153 0.160 0.167 0.174 0.181 0.188 0.19512 0.051 0.061 0.070 0.079 0.089 0.098 0.108 0.117 0.126 0.136 0.145 0.154 0.164 0.173 0.183 0.192 0.201 0.211 0.220 0.229 0.239 0.248 0.25714 0.065 0.077 0.089 0.101 0.113 0.125 0.137 0.149 0.161 0.173 0.185 0.197 0.209 0.221 0.233 0.245 0.257 0.268 0.280 0.292 0.304 0.316 0.32816 0.081 0.096 0.111 0.126 0.141 0.155 0.170 0.185 0.200 0.215 0.230 0.224 0.259 0.274 0.289 0.304 0.319 0.333 0.348 0.363 0.378 0.393 0.40818 0.099 0.117 0.135 0.153 0.171 0.189 0.207 0.225 0.243 0.261 0.279 0.297 0.315 0.333 0.351 0.369 0.387 0.405 0.423 0.441 0.459 0.477 0.49520 0.140 0.161 0.183 0.204 0.226 0.247 0.269 0.290 0.312 0.333 0.355 0.376 0.398 0.420 0.441 0.463 0.484 0.506 0.527 0.549 0.570 0.59222 0.164 0.190 0.215 0.240 0.266 0.291 0.316 0.342 0.367 0.393 0.418 0.443 0.469 0.494 0.519 0.545 0.570 0.596 0.621 0.646 0.672 0.69724 0.191 0.221 0.250 0.280 0.309 0.339 0.368 0.398 0.427 0.457 0.486 0.516 0.545 0.575 0.604 0.634 0.663 0.693 0.722 0.752 0.781 0.81026 0.254 0.288 0.322 0.356 0.390 0.424 0.458 0.491 0.525 0.559 0.593 0.627 0.661 0.695 0.729 0.763 0.797 0.831 0.865 0.899 0.93328 0.289 0.328 0.367 0.406 0.444 0.483 0.522 0.560 0.599 0.638 0.676 0.715 0.754 0.793 0.831 0.870 0.909 0.947 0.986 1.025 1.06330 0.327 0.371 0.415 0.459 0.502 0.546 0.590 0.634 0.678 0.721 0.765 0.809 0.853 0.896 0.940 0.984 1.028 1.071 1.115 1.159 0.20332 0.417 0.466 0.515 0.564 0.613 0.633 0.712 0.761 0.810 0.859 0.908 0.957 1.007 1.056 1.105 1.154 1.203 1.252 1.301 1.351534 0.465 0.520 0.575 0.630 0.684 0.739 0.794 0.849 0.904 0.959 1.014 1.068 1.123 1.178 1.233 1.288 1.343 1.397 1.452 1.50736 0.577 0.638 0.699 0.759 0.820 0.881 0.942 1.003 1.064 1.125 1.185 1.246 1.307 1.368 1.429 1.490 1.550 1.611 1.67238 0.637 0.704 0.771 0.838 0.905 0.973 1.640 1.107 1.174 1.241 1.308 1.376 1.443 1.510 1.577 1.644 1.711 1.779 1.84640 0.773 0.847 0.912 0.995 1.069 1.142 1.216 1.290 1.364 1.438 1.511 1.585 1.659 1.733 1.807 1.880 1.954 2.028.b. 检尺径≥10cm:V = 0.000039 ( 3.5 + D ) 2 (0.48 + L )2. 检尺规则:a. 检尺长:a. 按杉原条梢径≥6cm处的长度量取.b. 小于检尺径的梢端舍去不计算.c. 端面无垂直断面者由断口内缘量取.b. 检尺径:a. 按根端2.5m处均径计算.b. 检量处异形则向梢端移至正常部位量取.c. 劈裂材:a. 梢端:检量方法按标准方法计算.b. 根端:≥检尺径忽略不计..<检尺径劈裂长≤2.5m 则检尺径不变检尺长让去小于检尺径的根端>2.5m 未脱落:则检尺径不变让去劈裂长一半为检尺长(小于5m则按小原条计算)..已脱落:则检尺径按均值计算检尺长不变木材材积表2005-07-20| 6根据现行的中华人民共和国国家标准GB4814-84《原木材积表》、GB4815-84《杉原条材积表》、GB449-84《锯材材积表》推算得出的,供各部门的木材经销、木材检量等人员用于迅速查定各类木材的累计材积数。
请问原木材积如何计算, 能简单点最好。 带上单位 另柏木的密度也告诉下
用平均断面面积公式计算材积,需要原木大、小头都要检径,因此检尺工作量大一些,但是计算也较简单。而计算材积比实材积偏大,树干尖削度越大,材积偏差越严重。
3.圆台体公式
把原木形体视作圆台体,用圆台体几何体积计算公式来计算材积的公式,即:V=π/12×(D2大+ D大? D小+D2小)LO…………(5-12)
事实上,树干的直径一般是从大头向小头逐渐变小的,这种原木直径的有规律变化,我们称之为尖削度。即,大头直径减去小头直径的差值,除以材长所得的值,在这里叫做平均尖削度或直径增加率,用M表示。
则,M=(D大- D小)/Lo ……(5-13)
将(5-13)式变形、移顶,得D大-=D小 +ML。代入(5-11)式、(5-12)式;同理得DO=D小+ML/2代入(5-10)式,并用检尺径D代替D小,检尺长L代替Lo,则
V=π/4(D+0.5ML)2L……(5-14)
V=π/4{D2+DML+0.5(ML)2}L………(5-15)
V=π/4{D2+DML+1/3(ML)2}L………(5-16)
式(5-14)、(5-15)、(5-16)即为直径增加率公式,从中可以看出,三个公式的差别就在于(ML)2顶系数,依次为0.25,0.5,0.33。其中公式(5-16)计算的材积较为接近原木的实材积,而我国原木材积标准中采用的计算公式是(5-14)式,只是把尖削度M视作D与L的非线性函数,通过大量实测数据的统计,回归得到
一、木材材积计算基本公式
1.中央断面面积公式
是以原木中央断面面积和材长之积来求算材积的公式,即:V=(π/4×Do2)LO……(5-10)
式中:π/4×Do2----以中央直径计算的原木中央断面面积(m2);LO ---原木的材长(m)。
常用木材材积表
木材材积表( 1 ) 原木材积表检检尺长尺径 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.2 2.4 2.5 2.6 2.880.0060.0060.0070.0080.0080.0090.0100.0110.0110.0120.0130.0150.0160.0170.0180.020100.0090.0100.0110.0120.0130.0140.0150.0160.0170.0180.0190.0220.0240.0250.0200.029 120.0130.0140.0150.0170.0180.0200.0210.0220.0240.0250.0270.0300.0330.0350.0370.040 140.0170.0190.0200.0220.0240.0260.0280.0300.0320.0340.0360.0400.0450.0470.0490.054 160.0220.0240.0260.0290.0310.0340.0360.0480.0410.0440.0470.0520.0580.0600.0630.088 180.0270.0300.0330.0360.0390.0420.0450.0390.0510.0550.0590.0650.0720.0760.0790.096 200.0340.0370.0410.0440.0480.0520.0550.0590.0630.0670.0720.0800.0880.0920.0970.105 220.0410.0450.0490.0530.0580.0620.0670.0710.0760.0800.0860.0960.1060.1110.1160.120 240.0480.0530.0580.0630.0680.0740.0790.0840.0890.0950.1020.1140.1250.1310.1370.140 260.0560.0620.0680.0740.0800.0860.0920.0980.1040.1100.1200.1330.1460.1530.1600.174 280.0650.0720.0790.0850.0920.0990.1060.1130.1200.1270.1380.1540.1690.1770.1850.201 300.0740.0820.0900.0980.1060.1130.1210.1290.1370.1460.1580.1760.1930.2020.2110.230 320.0850.0930.1020.1110.1200.1290.1380.1470.1560.1650.1800.1990.2190.2300.2400.260 340.0950.1050.1150.1250.1350.1450.1550.1650.1750.1860.2020.2240.2470.2580.2700.283 360.1070.1180.1290.1400.1510.1620.1730.1850.1960.2080.2260.2510.2760.2890.3020.294 380.1190.1310.1430.1550.1680.1800.1930.2050.2180.2310.2520.2790.3070.3210.3550.298 400.1310.1450.1580.1720.1860.1990.2130.2270.2410.2550.2780.3090.3400.3550.3710.302检检尺长尺径 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0 80.0210.0230.0250.0270.0290.0310.0340.0360.0380.0400.0430.0450.0480.0510.0530.056 100.0310.0340.0370.0400.0420.0450.0480.0510.0540.0580.0610.0640.0680.0710.0750.078 120.0430.0470.0500.0540.0580.0620.0650.0690.0740.0780.0820.0860.0910.0950.1000.105 140.0580.0630.0680.0730.0780.0830.0890.0940.1000.1050.1110.1170.1230.1290.1360.142 160.0750.0810.0870.0930.1000.1060.1130.1200.1260.1340.1410.1480.1550.1630.1710.179 180.0930.1010.1080.1160.1240.1320.1400.1480.1560.1650.1740.1820.1910.2010.2100.219 200.1140.1230.1320.1410.1510.1600.1700.1800.1900.2000.2100.2210.2310.2420.2530.264 220.1370.1470.1580.1690.1800.1910.2030.2140.2260.2380.2500.2620.2750.2870.3000.313 240.1610.1740.1860.1990.2120.2250.2390.2540.2660.2790.2930.3080.3220.3360.351.0366 260.1880.2030.2170.2320.2470.2620.2770.2930.3080.3240.3400.3560.3730.3890.4060.423 280.2170.2340.2500.2670.2840.3020.3190.3370.3540.3720.3910.4090.4270.4460.4650.484 300.2480.2870.2860.3050.3240.3440.3640.3830.4040.4240.4440.4650.4960.5070.5280.549 320.2810.3020.3240.3450.3570.3890.4110.4330.4560.4790.5020.5250.5480.5710.5950.619 340.3160.3400.3540.3880.4120.4370.4610.4860.5110.5370.5620.5880.6140.6400.6660.692 360.3530.3800.4060.4330.4600.4870.5150.5420.5700.5980.6260.6550.6830.7120.7410.770 380.3930.4220.4510.4810.5100.5410.5710.6010.6320.6930.6940.7250.7570.7880.8200.852 400.4350.4660.4980.5310.5640.5970.6300.6630.6970.7310.7650.8000.8340.8690.9030.938检检尺长尺径 6.2 6.4 6.6 6.87.07.27.47.67.88.08.59.09.510.0 80.0560.0620.0650.0680.0710.0740.0770.0810.0840.0870.0970.1060.1160.127 100.0780.0860.0900.0940.0980.1020.1060.1110.1150.1200.1310.1440.1560.170 120.1090.1140.1190.1240.1300.1350.1400.1460.1510.1570.1710.1670.2030.219 140.1490.1560.1620.1690.1760.1840.1910.1990.2060.2140.2340.2560.2780.301 160.1870.1950.2030.2110.2200.2290.2380.2470.256 0.2650.2890.3140.3400.367 180.2290.2380.2480.2580.2680.2780.2890.3000.3100.3210.3490.3780.4080.440 200.2750.2860.2980.3090.3210.3330.3450.3580.3700.3830.4150.4480.4830.519 220.3260.3390.3520.3650.3790.3930.4070.4210.4350.4500.4870.5250.5640.604 240.3800.3960.4110.4260.4420.4570.4730.4890.5060.5220.5640.6070.6510.697 260.4400.4570.4740.4910.5090.5270.5450.5630.5810.6000.6470.6950.7440.795 280.5030.5220.5420.5610.5810.6010.6210.6420.6620.6870.7350.7890.8440.900 300.5710.5920.6140.6360.6580.6810.7030.7260.7480.7710.8300.8890.950 1.012 320.6440.6670.6910.7150.7400.7650.7900.8150.8400.8650.9300.995 1.062 1.131 340.7190.7460.7720.7990.8270.8540.8810.9090.9370.965 1.035 1.107 1.181 1.225 360.7990.8290.8580.8880.9180.9480.978 1.0081.039 1.069 1.147 1.225 1.305 1.387 380.8840.9160.9490.981 1.014 1.047 1.080 1.1131.146 1.180 1.264 1.349 1.436 1.525 400.9731.008 1.044 1.079 1.115 1.151 1.186 1.2231.259 1.295 1.387 1.479 1.574 1.669注:1. 计算公式: a. 检尺径4~ 12cm : V = 0.00007854 L ( D + 0.45 L + 0.2 )2b. 检尺径≥ 14cm : V = 0.00007854 L [ D + 0.5L + 0.005 L2 +0.000124L(14 –L) 2(D –10)] 22.检尺规则: a. 检尺长: a. 按原木两头直线长胸怀取;b.小于检尺径的梢端舍去不计算c. 端面无垂直断面者由断口内缘量取b. 检尺径: a . 由梢端垂直截面量取;量取方法:·按短径计算:短径<26cm 、且长短径差≤≥ 26cm 、且长短径差≤·按均径计算:短径<26cm 、且长短径差>≥ 26cm 、且长短径差>2cm 4cm 2cm 4cmc. 异形材: a...b ...c...d .异径材:按原木正常部位最细处检量异端材;检量方法按标准方法计算双杈材:只检量此中一主枝另枝按节子办理劈裂材:·未离开:≤10%忽视不计. > 10%须减去所经过裂痕长一半处的裂痕垂直宽度·己离开:小头:≤10% 忽视不计> 10%采纳让尺:让径按均径计算..让长检尺径在实质检尺长地点量取大头:计算均径值:≥检尺径忽视不计. <检尺径以大头为检尺径可采纳让尺办理( 2 ) 原条材积表检检尺长尺径56789101112131415161718192021222324252627 8---------------------------------------------------10121416182022242628303234363840注: 1 . 计算公式: a. 检尺径= 8 cm : V = 0.004902 L.b. 检尺径≥ 10cm : V = 0.000039 ( 3.5 + D ) 2 (0.48 + L )2.检尺规则: a. 检尺长: a . 按杉原条梢径≥ 6cm 处的长胸怀取.b . 小于检尺径的梢端舍去不计算.c . 端面无垂直断面者由断口内缘量取.b. 检尺径: a. 按根端 2.5m 处均径计算.c.劈裂材:.b .a..b .检量处异形则向梢端移至正常部位量取梢端:检量方法按标准方法计算根端:≥检尺径忽视不计.. <检尺径劈裂长≤ 2.5m则检尺径不变检尺长让去小于检尺径的根端> 2.5m未零落:则检尺径不变让去劈裂长一半为检尺长( 小于 5m 则按小原条计算).. 已零落:则检尺径按均值计算检尺长不变木材材积表2005-07-20|依据行的中人民共和国国家准GB4814-84 《原木材表》、 GB4815-84 《杉原条材表》、 GB449-84 《材材表》计算得出的,供各部的木材、木材量等人用于快速定各木材的累材数。