川气东输沿线某边坡治理方案
Method of Treating Slope along Sichuan to the East Gas Pipeline
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- 引用格式:
-
叶贵根,薛世峰.川气东输沿线某边坡治理方案[J].天然气与石油,2011,29(1):0.doi:
.Method of Treating Slope along Sichuan to the East Gas Pipeline[J].Natural Gas and Oil,2011,29(1):0.doi:
- DOI:
- 作者:
- 叶贵根 薛世峰
- 作者单位:
- 中国石油大学（华东）工程力学系
- 关键词:
- 滑坡；流固耦合；边坡稳定性；数值模拟
Landslide； Fluid Structure Interaction； Slope stability； Numerical simulation
- 摘要:
- 川气东输管线途经滑坡地质多发区，而管道施工容易引发滑坡灾害，对管线及人员器械造成极大威胁。为减少滑坡灾害的发生，基于流固耦合原理，在考虑渗流效应的作用下，利用有限差分软件FLAC2D和FLAC3D建立了川气东输沿线罗针田边坡的二维及三维力学模型和几何模型。通过边坡在管沟开挖前后不同状态下的稳定性分析得到了边坡的稳定系数及应变云图和位移曲线，结合工程地质条件提出相应的抗滑措施。对边坡进行了6级烈度的抗震分析，给出了综合稳定性评价。
Sichuan-East Gas Pipeline goes through an area in which landslide occurs frequently，where many landslide disasters occur often in pipeline construction projects，which will bring about great threat on gas pipeline，personnel and construction equipment. In order to reduce landslide disasters，based on fluid structure interaction theory，considering seepage effects，finite difference software FLAC2Dand FLAC3Dare applied to establish 2D and 3D mechanical models and geometry model for Luozhentian slope along the Sichuan-East Gas Pipeline，analyzed is its stability under different conditions before and after pipeline ditch excavation，obtained are slope stability coefficient，strain cloud pictures and displacement curves and corresponding anti-sliding measures are given according to engineering geological conditions. Analyzed is the level 6 intensity seismic resistance of the treated slope and assessed is its comprehensive stability.
