工程地质学报2016，Vol.24Issue(1)：136-141,6.DOI:10.13544/j.cnki.jeg.2016.01.017
黄岛地下水封油库地应力场及地质构造作用分析
IN-SITU STRESS FIELD AND GEOLOGICAL TECTONIC ANALYSIS AT HUANGDAO WATER-SEALED UNDERGROUND OIL CARVEN SITE
摘要
Abstract
The initial in-situ stress field has significant influence on the stability of surrounding rock of underground carven.Nevertheless,the in-situ stress field result obtained by a single method is usually not of high reliability because of the complexity of geological conditions.This paper takes the Huangdao underground water-sealed cavern as example and analyzes its regional tectonic background and near-field faults.The in-situ stress field is tested by hydraulic fracturing method.The maximum principal stress is obtained.Its directions are is mainly oriented NWW.Its advantage direction is N73°W.The stress field of study area is analyzed by geological structure analysis method.The impact of regional tectonic history on present tectonic stress field of study area is discussed.It is found that the maximum principal stress direction is NW~NNW.The maximum principal stress directions obtained by construction analysis and hydraulic fracturing method are roughly NW.But there is a certain bias.The main reason is probably due to the fact that the geological structure of research area is complicated and affected by the boundary conditions of tectonic deformation.Thus,the derived local stress field is deflected.The results suggest that the comprehensive evaluation of regional geological structure analysis and in-situ stress test should be used for stress field analysis.The result has a certain reference value for the comprehensive determination of stress field.关键词
地下水封洞库/地应力/地质构造/水压致裂法/构造演化Key words
Underground water-sealed cavern/In-situ stress/Geological structure/Hydraulic fracturing/Tectonic evolution分类
天文与地球科学引用本文复制引用
王章琼,晏鄂川,季惠斌..黄岛地下水封油库地应力场及地质构造作用分析[J].工程地质学报,2016,24(1):136-141,6.基金项目
北京市科学技术委员会重点项目(20090102-2796),武汉工程大学科学研究基金项目(K201473)资助. （20090102-2796）
