高压注浆渗流数学模型与工程应用  

Mathematical model of high pressure injection cement liquid and its application

作　　者：李哲[1] 仵彦卿[2] 张建山[1] 

机构地区：[1]西安理工大学水利水电学院,西安710048 [2]上海交通大学环境工程学院,上海200240

出　　处：《岩土力学》2005年第12期1972-1976,共5页Rock and Soil Mechanics

基　　金：国家自然科学基金项目(No.10172071)

摘　　要：依据活塞式驱替注浆渗流的数学模型,推导出高压注浆过程中浆体区和原水体区的压力分布,以及停止注浆后井底压力消退情况。分析了注浆井底压力和原区压力与注浆时间、浆液粘度、渗透率、计算点与注浆井距离等关系;依据理论分析,并通过现场试验建立了注浆井底压力和水灰比的经验关系,将结果用于指导灌注桩高压注浆补强工程,取得了良好的实践效果。Based on the mathematical model of high pressure injection cement liquid, a formula of pressure distribution is derived in the district with the cement liquid injection and the raw water area, and the pressure in well bottom to fade away as stop injection cement liquid. The pressure in well bottom relation with the time of the injection and the viscosity of cement liquid , and the permeability in the confined aquifer are analyzed. The empirical formula of the injection pressure with the water-cement ratio is established. The formula can consequently guide the engineering; the good fulfillment results are obtained.

关 键 词：高压注浆 渗流 注浆压力 水灰比 工程应用 

分 类 号：TV543[水利工程—水利水电工程]