高速公路地质详细勘察大纲

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北京至台北高速公路廊坊段
本次勘察工作依据如下: 1) 勘察任务书; 2) 参考规范、规程及手册: 公路工程地质勘察规范(JTJ064-98) 公路勘测规程(JTJ061-99) 公路桥位勘测规程(JTJ062-91) 公路路基设计规范(JTG D30-2004) 公路土工试验规程(JTG E40-2007) 公路桥涵地基与基础设计规范(JTGD063-2007) 公路工程抗震设既规范(JTJ004-89) 建筑抗震设计规范(GB50011-2001) 建筑工程地质钻探技术标准(JGJ87-92) 岩土工程勘察规范(GB50021-2001) 铁路工程地质勘察规范(TB10012-2001) 湿陷性黄土地区建筑规范(GBJ25—90) 工程岩体试验方法标准(GB/T50266-99) 软土地区工程地质勘察规范 (JGJ83-91) 公路路基设计手册 岩土工程勘察设计手册
北京至台北高速公路廊坊段位于河北省中东部,毗邻北京市和天 津市。路线北起廊坊市火头营村西(京冀界),接拟建的京台高速公 路北京段,进而向北连接北京市规划的东南过境通道(七环)和已建的 六环路,路线总体呈北南—西东走向,依次穿越廊坊市的广阳区、永 清县和安次区,止于廊坊市穆家口村北(冀津界),接京台高速公路 天津段,进而连接京沪高速公路,路线全长 53.270km。另建礼贤互 通(北京段)连接线,一级公路标准,全长 15.96km;东安庄互通连 接线,二级公路标准,路线全长 8.105km。
北京至台北高速公路廊坊段
北京至台北高速公路廊坊段
详细工程地质勘察大纲
一、工程概况 1.1 工程简介
京台高速公路廊坊段是国家高速公路网中北京—台北高速公路 的组成部分,起自北京市安定镇东南的京冀省界,与北京规划的北京 至济南高速公路相接,过廊坊市广阳区、永清县、安次区,止于天津 市石各庄西南的冀津省界,与天津市在建的 G112 线高速公路相接。 路线大致为南北—东西走向。延伸范围地理坐标大致为东经 116°30′~117°00′,北纬 39°30′~39°00′。
最终确定公路路线和构造物的布设位置。 2) 查明构造物地基的地质结构、工程地质及水文地质条件,准
确提供工程和基础设计、施工必需的地质参数。 3) 根据初勘拟定的对不良地质、特殊岩土防治的方案,具体查
明其分布范围、性质,提供防治设计必需的地质资料和地质 参数。 4) 对沿线筑路材料料场进行复核和补充勘察,最后确定施工 时所采用的料场。
四、沿线工程地质条件··································································································· 7 4.1 地形、地貌··································································································7 4.2 地层岩性······································································································8 4.3 地质构造与断裂 ··························································································9 4.4 地震 ···········································································································11 4.5 水文地质····································································································12 4.6 特殊岩土和不良地质 ················································································13
五、初勘工作的总结和详勘工作分析········································································ 14 5.1 初勘工作的总结 ························································································14 5.2 详勘方法····································································································15 5.3 详勘的重点································································································16 5.4 详勘工作的组织与工期安排·····································································17 5.5 质量控制····································································································19
北京至台北高速公路廊坊段
详细工程地质勘察大纲
京台高速公路廊坊段勘察项目组 二〇一〇年五月
目录
一、 工程概况 ············································································································· 1 1.1 工程简介·········································································································1 1.2 工程主要工程数量··························································································2
二、详细勘察目的、任务和本次勘察工作的依据····················································· 3
三、项目沿线自然地理概况 ·························································································· 4 3.1 地势·················································································································5 3.2 气候气象·········································································································5 3.3 水文·················································································································6
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北京至台北高速公路廊坊段
图 1-1 路线地理位置图
自 2008.11—2009.02 进行了初步工程地质勘察工作,很好的完 成了初勘任务。为很好的完成详细勘察及为施工图设计提供必要的工 程地质支持,特制定本详细勘察工作大纲。
1.2 工程主要工程数量
工程规模及主要工作量如下表 1:
序号
1 2 3 4 5 6 7
六、资料提交 ················································································································· 23 6.1、中间资料提交 ·····························································································23 6.2、最终报告提交 ·····························································································23
3.1 地势 路线跨越两大类地貌单元区,既冲洪积平原区和河漫滩区,地势
平坦开阔,起伏较小,海拔 2~32 米。
3.2 气候气象
项目影响区地处北半球中纬度欧亚大陆的东北部边缘,属温带半 干旱大陆性季风型气候区。四季分明,具有春季干燥多西北风,夏季 炎热多雨,秋季晴朗凉爽宜人,冬季寒冷干燥少雪等特点。
a) 气温 项目影响区年平均气温(1971-2004)为 11.9 度,一月最冷,最 低气温为零下 21.8 度;七月最热,最高气温为 40.3 度。 b) 降雨 全市年最大降雨量 l087.0 毫米(1994 年),年最小降雨量 272.9 毫米(1972 年),年平均降雨量 555.3 毫米;年平均蒸发量 1739.2 毫 米。降水季节分布不均,多集中在夏季,6~8 三个月降水量一般可 达全年总降水量的 70-80%。 c) 无霜期 全市早霜一般始于 10 月中、下旬,晚霜一般至于翌年 4 月中、
二、详细勘察目的、任务和本次勘察工作的依据
本次勘察目的是在初勘的基础上,根据已批准的初步设计文件中 所确定的修建原则、设计方案、技术要求等资料,有针对性的进行工 程地质勘察工作,为确定公路路线、工程构造物的位置和编制施工图 设计文件,提供准确、完整的工程地质资料。
本次工程勘察的主要任务: 1) 在初勘基础上,根据设计进一步查明建筑场地工程地质条件,
项目
路线长度 土方
排水防ห้องสมุดไป่ตู้ 路面
特大桥 大桥 中桥
主要工程规模数量表
单位
km 1000m3 1000m3 1000m2 m/座 m/座 m/座
主线初设 推荐方案 53.270 8806.18 229.847 1828.9 7107.5/1 2200.6/6 1060.5/20
表1
礼贤 连接线 15.96 263.9
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北京至台北高速公路廊坊段
下旬,年平均无霜期为 198.6 天左右。 d) 日照 全市年平均日照时数(1971-2004)在 2659.5 小时左右,每年
5-6 月日照时数最多。 e) 风向及风速 项目区属大陆性季风气候,冬季多偏北风,夏季多偏南风,年平
346.06
138/2
东安庄 连接线 8.105 52.87
80.997
-
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北京至台北高速公路廊坊段
8
小桥

9
涵洞

10 互通式立交 处
11 分离式立交 处
12
天桥

13
通道

14
服务区

15 永久占地

21 5 10 3 51 2 5758.81
32/4 22 -
992.25
8/1 12 295.7
三、项目沿线自然地理概况
拟建路线经过的廊坊市广阳区、安次区和永清县,地势自西北向
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北京至台北高速公路廊坊段
东南倾斜,自然坡降为 1/200~1/20000,一般海拔 2~32 米。地貌类 型主要有冲洪积平原区和河漫滩区。前者以河流冲洪积地貌为主,地 势开阔、平坦,地形起伏不大。后者为永定河多次改道形成,地貌存 在许多洼地、缓岗沙丘。
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