Lucas 7 海绵城市模型演示 项目介绍

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Jingshangu LID Project jing山谷 LID 项目
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Hydrograph of 2-year 137mm 24-hour rainfall event. Note how inflows (green) into stone are very high (16.7 lps). 注意流入量（绿线）如何非常快地进入碎石（16.7升/秒）。 But outflows (blue) from stone are very low (0.08 lps), controlled by the lateral flow through stone.
Primary Comparison
Reach Uncontrolled: Uncontrolled=0.71229 m³/s
Reach No Control: LID Uncontrolled=0.17654 m³/s
Subcat Reach Reach
Primary (m³/s)
10 12 14 16 18 20 22 24 26 28 30 32 34 36 Tim e (hours)
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Peak inflows conveyed directly to outlet. 峰值入流量直接运送到排水口。 Outlet then manages both drainage flows and peak bypass flows so that most runoff stored in the stone.
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10 12 14 16 18 20 22 24 26 28 30 32 34 36 Tim e (hours)
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1-year 45mm Event 1年45毫米事件
5-year 202mm Event 5年202毫米事件
In small event, woods store most rainfall, so very little runoff, only when saturated at end of event. 在小事件中，森林贮存了大多数降雨，所以非常少的径流，只有在事件结束时才饱和。 In larger event, storage in wooded area attenuates initial runoff, but is eventually saturated, so eventually similar to uncontrolled. 在大事件中，森林区域的蓄水量削弱了初始径流，但最终还是会饱和，所以最终和未控制 类似。
入流管和碎石被模拟成第一个节点。
Runoff then flows laterally into the adjacent ½ stone, distributed by inflow pipes. 径流之后横向流入邻近的1/2的碎石区，被 入流管分流开。
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Runoff then flows laterally into the second ½ stone, collected by collection pipes. 然后径流横向流入第二个1/2碎石区，被集水 管收集。
Jingshangu LID Project jing山谷 LID 项目
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Outlet structure collects runoff that doesn’t exit by perforations into stone.
排水口结构收集那些没有通过离开孔隙进入碎石区的径流。 Outflows are controlled by orifice and V-notch weir up to 40cm depth. 流出量被孔口和达40厘米深的三角堰控制。
两年137毫米24小时降雨事件水位图
但是从碎石中的流出量（蓝线）非常低（0.08升/秒），被穿过碎石的横向流动所控制。
Primary Comparison
0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 0 2 4 6 8 10 12
Jingshangu LID Project jing山谷 LID 项目
Jingshangu LID Project
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Runoff is retained on top of garage. 5 drainage areas managed by outlets 径流被保存在车库顶。5个受出水口管理的排水区域
Jingshangu LID Project jing山谷 LID 项目
Reach Uncontrolled: Uncontrolled=0.18135 m³/s
Subcat Wooded Reach Controlled Reach Uncontrolled
Primary (m³/s)
14 16 18 20 22 Tim e (hours )
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Main System is still much more effective than wooded area. 主要系统依然比森林区域有效得多。
Primary Comparison
0.75 0.7 0.65 0.6 0.55 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 2 4 6 8 0.5
Jingshangu LID Project jing山谷 LID 项目
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Roof runoff conveyed distributed under central landscaped areas, collected by perforated pipes. 屋顶径流被运输分布到中心景观区域之下，被滤管收集。
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Then flows overflow the top, keeping peak depths below grade.
然后水流溢出顶部，保持峰值量始终在程度以下。 Due to restriction, half runoff also enters collection pipes as well, accessing more storage. 由于限制，一半的径流也进入到集水管，达到更多的贮水量
Jingshangu LID Project jing山谷 LID 项目
0.34 Subcat Wooded 0.32 Reach Controlled 0.3 Reach Uncontrolled 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0
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34 36
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Very large 60-year ARI event, Uncontrolled runoff (blue) is compared to 100% wooded site (red).
在非常大的60年平均重复周期(ARI)事件中，将未被控制的径流（蓝线）与百分百长满树木 的地点（红线）作比较。 Controlled outflows (black) from system are even below 100% wooded! This means that adjacent areas can be unmanaged and still no flooding! 这意味着邻近区域可以不被管理还依然不会有洪水泛滥。 This has huge implications for flood mitigation opportunities.
Primary Comparison
Reach Uncontrolled: Uncontrolled=0.03473 m³/s
Reach Uncontrolled: Uncontrolled=0.31238 m³/s
Subc Reac Reac
Primary (m³/s)
10 12 14 16 18 20 22 24 26 28 30 32 34 36 Tim e (hours)
排水口之后同时管理污水水流和旁流峰值， 以便最多的径流被贮存在碎石中。
Jingshangu LID Project jing山谷 LID 项目
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Inflow pipes and surrounding stone modeled with rapid outflow since narrow and deep.
伴有由于窄而深而迅速流出的入流管和周围的碎石被模拟。 Flows into adjacent stone much slower, function of effective flow width. The longer, the slower. 水流进入周围碎石变得更慢，有效水流宽度的函数。越长，越慢。 Flow rates then normalized as rating curve for use in model. 流速然后被标准化成为评定曲线在模型中使用。
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Areas segregated into pervious and impervious. 区域被分成可渗透和不可渗透。 Inflow pipes and stone modeled as first node.
Jingshangu LID Project jing山谷 LID 项目
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10 12 14 16 18 20 22 24 26 28 30 32 34 36 Tim e (hours)
Main System 主要系统
60-year 389mm Event 60年389毫米事件
LID System
Jingshangu LID Project jing山谷 LID 项目
0.19 Subcat Wooded 0.18 Reach Controlled 0.17 Reach Uncontrolled 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 0 2 4
Jingshangu LID Project jing山谷 LID 项目
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Runoff stored in 25cm deep stone layer. 径流贮存在25厘米深的碎石层中。 Inlet pipes from roof covered by stone so runoff can exit pipes rapidly. 入口管道从被石头覆盖的屋顶而来所以径流可以快速的退出管道。 Runoff then flows into collection pipes where diffuses into stone layer more effectively. 径流然后流入集水管，也是更有效扩散进入碎石层的地方 Flow through stone modeled using Darcy’s Law to account for head and lateral flow distance. 水流穿过碎石被使用达西定律所模拟来考虑源流和横向流动之间的距离。
Jingshangu LID Project jing山谷 LID 项目
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Project is thirteen 33-story residential towers with extensive landscaping over garage. 项目是33层的住宅塔楼，并且车库上有大规模的景观美化。
控制的系统流出量（黑线）甚至比百分百长满树木的地点还要低!
这对洪涝缓解可能性有着巨大的含义。
Primary Comparison
0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 0 2 4 6 8