人民长江Issue(21)：97-100,4.
基于 CT 试验的水力劈裂机理研究
Study on hydraulic fracturing of clay core material based on CT test
摘要
Abstract
Hydraulic fracturing test is carried out for clay core naterial,and CT instrunent is applied to study the sanple shape before and after the test,so as to analyze the crack state variation,fracturing fornation nechanisn and its influential fac-tors. The results show that the inage observation is a qualified nethod for studying the generating process and detail shape of cracks during hydraulic fracturing. It is concluded that honogeneous sanples give no access to hydraulic fracturing,however the hydraulic fracturing is found in the sanples with initial crack under high water pressure,and penetrating cracks that create signif-icant change for inner soil structure are observed by CT test. The test results validate the "water pressure fracturing effect" in hy-draulic fracturing phenonenon,and the opinion that penetrating crack is induced by tension effect.关键词
CT试验/水力劈裂/土体裂缝/水压楔劈效应Key words
CT test/hydraulic fracturing/soil crack/water pressure fracturing effect分类
建筑与水利引用本文复制引用
袁俊平,王启贵,丁鹏..基于 CT 试验的水力劈裂机理研究[J].人民长江,2014,(21):97-100,4.基金项目
中央高校基本科研业务费专项资助 （）
