关于空心包体应变计地应力测量中围压率定修正公式的讨论  

Anslyses of the Confining Pressure Formulation About Geostress Measurement With Method of Csird Cells

作　　者：赵立旺[1,2] 刘天鹏[1,2] 李克绵 李俊富[1,2] 张文东 

机构地区：[1]中水东北勘测设计研究有限责任公司,长春130061 [2]水利部寒区工程技术研究中心,长春130061

出　　处：《水利科技与经济》2012年第10期42-44,共3页Water Conservancy Science and Technology and Economy

摘　　要：围压加载试验是空心包体应变计地应力测量中配套进行的一种重要试验。综合考虑树脂弹模和泊松比、应变花位置、柱塞对环氧树脂套筒抗力和环氧树脂套筒与岩壁粘结情况等因素,详细推导围压率定修正公式,并通过对各种围压率定修正公式的对比,讨论了考虑抗力因素的合理性,并采用有限元方法,讨论了k0公式的正确性。The confining pressure test is an important and essential test to geostress measurement with CSIRO cells.The confining pressure formulation is derived minutely considering the effect of elastic modulus and Poisson′ratio of epoxy、the position of strain gauge、resin layer resistance and the felt degree about rock and rosin layer.The rationality for considering the effect of resin layer resistance is anslysed by comparing several confining pressure formulatins,and discussed the correctness of k0 formula.

关 键 词：空心包体应变计 地应力测量 围压试验 弹模修正 

分 类 号：TV131[水利工程—水力学及河流动力学]