川东北气田A井场滑坡稳定性评价及治理方案设计  

Evaluation on Landslide Stability and Treatment Plans in High-sour Gasfields:Examples from A Wellsite, Northeastern Sichuan Basin

作　　者：周记萌 

机构地区：[1]四川蜀渝石油建筑安装工程有限责任公司,四川成都610084

出　　处：《天然气技术与经济》2018年第5期57-61,共5页Natural Gas Technology and Economy

摘　　要：以川东北气田A井场滑坡实际情况为背景,通过资料收集、地质勘探等工作,系统地分析了滑坡特征、成因机制,并对滑坡在不同工况下的稳定性进行计算,得出该滑坡在天然状态下处于欠稳状态、饱和工况下处于不稳定状态,综合未来趋势预测应提前整治的结论。为此,综合考虑技术、安全、施工等各方面因素,提出"削方减载+分层使用锚杆、锚索框架梁支护+截排水+重力式挡土墙+植草护坡"的综合治理方案,并逐一分析治理措施,为滑坡治理设计提供依据。Taking many landslides occurring at A wellsite in northeastern Sichuan Basin as examples, we systematically analyzed their characteristics and genetic mechanism, calculated their stability under various working situations, came to one conclusion that the landslides are often in an understable state whereas unstable under saturated working situation, predicted the trend of landslide development, proposed some treatment plans including cutting slope, bolts and anchor-cable frame beams support, intercepting water and drainage, gravity retaining wall, and vegetation of slope protection, finally made countermeasures against landslides, all providing evidences for treatment design.

关 键 词：滑坡 成因机制 稳定性分析 治理方案 

分 类 号：TE37[石油与天然气工程—油气田开发工程]