高压环境条件下注浆模型试验系统设计

注浆工程常常在高地层压力、高水压力的地质环境条件下进行(如煤矿堵水或注浆加固工程)。为了研究高压环境条件下注浆浆液的渗流扩散特征,作者研制了可形成5MPa以上高压环境的注浆试验系统。该试验系统由四个功能模块组成,并可分为四个设备子系统。该试验系统的核心设备高压注浆模型试验装置中应用压力传导管解决了高压罐体内部监测设计所遇到的尺寸效应、传感器防腐、高压密封等难题。

DESIGN OF MODEL TEST SYSTEM FOR GROUTING UNDER HIGH PRESSURE CONDITIONS

Grouting works are often executed under the geological environment of high formation pressure and high water pressure(such as warer shutoff or rock reinforcement in coal-mine).In order to study the flow characteristics of grouting slurry spreading under high pressure conditions,the author developed a grouting test system which can creat a high-pressure environment of over 5MPa.The test system consists of four functional modules,and can be divided into four equipment subsystems.The core equipment of the test system is the patent product "Test Set-up for Simulating High Pressure Grouting",in which pressure transmission pipes are used as the solution to problems such as size effect,sensor corrosion-preventing and high-pressure sealing,which are encountered in designing the monitor program inside the high-pressure tank.