大口径深层曝气井地下竖井构筑物施工风险管理

Management of Construction Risk of Large Diameter Underground Shaft for Deep Shaft Process

摘要:

深层曝气井地下竖井构筑物的施工风险与拟建场地工程地质勘察、成孔钻进、外管下放、管外回填固化等环节风险相关。利用层次分析-模糊评判方法把深层曝气井地下竖井构筑物施工风险表示为有序的递阶层次结构，通过确定各施工环节的风险权重，对施工环节的风险进行排序，确定各施工环节的风险程度。把层次分析的量化结果与模糊数学中的综合评判方法结合起来，对深层曝气井地下竖井构筑物施工进行全面的风险评价、管理。

Abstract:

Construction risk of underground shaft for deep shaft process is related to risks of many links such as engineering geological investigation of the site， drilling， installation of outer tube and backfilling gap between the drilling and pipe, and so on. Using analytic hierarchy process and fuzzy evaluation method, construction risk of underground shaft for deep shaft process is expressed as the orderly hierarchical structure in this paper. By identifying risk weight and risk ranking of each construction link, we determine the risk degree of each construction link. The quantitative results of analysis and fuzzy comprehensive evaluation method are combined with so that we develop comprehensive risk assessment and management to construction for underground shaft for deep shaft process.