某储气库集注站场地主要工程地质问题探讨

Discussion on Main Engineering Geological Problems of a Gas Storage and Injection Station Site

某储气库是中国石油天然气集团公司计划在川渝地区分三批建设的8个储气库之一。通过对储气库集注站场地地形地貌、地质构造、地层岩性、水文地质等工程地质条件,分析场地主要工程地质问题。研究结果表明:集注站场区主要工程地质问题为岩溶、危岩和不局部稳定斜坡;岩溶发育程度一般,可填充处理;三方边坡危岩以滑移式为主;西侧边坡局上覆土层较厚,暴雨下可能发生局部溜塌,采取预防浅表土体失稳措施处理。这些可供其他类似工程交流借鉴。

The storage facility is one of eight that China National Petroleum Corp plans to build in three batches in the Sichuan and Chongqing region.Based on engineering geological conditions such as landform,geological structure,stratigraphic lithology and hydrogeology,this paper analyzes the main engineering geological problems of the site.The results show that the main engineering geological problems are karst,dangerous rock and non-locally stable slope.Karst development degree is general,can be filled treatment.Tripartite slope dangerous rock is mainly sliding type.The overlying soil layer of the west side slope is thicker,and local slip collapse may occur under the rainstorm,which can be used as reference for other similar projects.