单孔振荡式微水试验确定裂隙岩体各向异性渗透参数

发布时间：2018-05-13 08:31

本文选题：岩石力学 + 微水试验　；参考：《岩石力学与工程学报》2015年02期

【摘要】：基于振荡式微水试验的原理和岩体渗透系数张量的基本表达式,提出单孔分段振荡式微水试验。研发一套由多功能探头、密封阀、操作屏和气压泵等组成的测试设备,在技术上实现了单孔内围岩成像、量测裂隙产状、探测水压和水温变化,并将信息实时传输到上位机数据采集系统。通过采集的试验数据信息和围岩裂隙信息编制参数计算软件,实现了单孔试验确定裂隙渗透系数、岩体渗透系数张量和裂隙贮水率的技术和方法。以实例形式介绍了单孔微水振荡试验现场确定裂隙导水系数、岩体渗透系数张量的具体步骤和方法。
[Abstract]:Based on the principle of oscillatory micro-water test and the basic expression of permeability coefficient of rock mass Zhang Liang, the single-hole oscillating micro-water test is proposed. A set of testing equipment consisting of multifunctional probe, sealing valve, operating screen and air pump has been developed, which has technically realized the imaging of surrounding rock in a single hole, measuring the occurrence of cracks, and detecting the change of water pressure and water temperature. And the information is transmitted to the data acquisition system of the host computer in real time. The technique and method of determining fracture permeability coefficient, rock mass permeability coefficient Zhang Liang and fracture water storage rate by single hole test are realized by compiling parameter calculation software of collected test data and surrounding rock fracture information. In this paper, the concrete steps and methods of determining the hydraulic conductivity of fractures and the permeability coefficient of rock mass Zhang Liang in the field of single-hole micro-water oscillation test are introduced in the form of an example.
【作者单位】：河海大学地球科学与工程学院;
【基金】：国家自然科学基金资助项目(41172204)
【分类号】：TU452

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