考虑浆液粘时变性渗透注浆理论计算公式  

Calculation Formula of Permeation Grouting Considering Slurry Viscosity Variation

作　　者：周军霞 陆劲松 张玉[2] 王志芬 ZHOU Junxia;LU Jinsong;ZHANG Yu;WANG Zhifen(College of Architecture and Transportation,Liaoning Technical University,Fuxin 123000,China;Key Laboratory of Urban Underground Engineering of Ministry of Education.Beijing Jiaotong University,Beijing 100044,China;The Fourth Engineering Division,Beijing Municipal Construction Co.,Ltd.,Beijing 100079,China)

机构地区：[1]辽宁工程技术大学建筑与交通学院,辽宁阜新123000 [2]北京交通大学城市地下工程教育部重点实验室,北京100044 [3]北京市政建设集团有限责任公司第四工程处,北京100079

出　　处：《材料科学与工程学报》2019年第5期758-762,共5页Journal of Materials Science and Engineering

基　　金：辽宁省教育厅科学技术研究资助项目(LJYL053);辽宁工程技术大学大学生创新创业计划资助项目(201710147000032)

摘　　要：本研究在马格经典理论的基础上,通过严格的理论推导,得出浆液粘时变性渗透注浆理论计算公式,实现了渗透注浆理论计算公式的统一。然后以水泥浆液为例,分析影响浆液粘度的主要因素和敏感性,通过试验对比并验证计算公式的正确性。研究结果表明:考虑浆液粘时变性渗透注浆理论计算公式为其统一化形式,由于其严格的理论推导过程,计算结果较采用"平均粘度"时更准确,适用于水灰比为1.0~2.0的牛顿流体;水泥浆液粘度主要受水灰比、环境温度和注浆时间的影响,且均为敏感因素,敏感程度由大到小依次为水灰比、时间和温度。Based on the classical "Maag Theory", the unified calculation formula considering "variable viscosity" was given by strict theory derivation. Then taking cement slurry as an example, its main factors influencing viscosity and their sensitivity on slurry viscosity are analysized. The above new formula was verified by comparing with experimental results. The results show: that ① Calculation formula of permeation grouting considering the "variable viscosity" is the unified form, particularly for the Newton Fluid;② Viscosity of cement slurry is mainly influenced by water-cement ratio, environmental temperature and grouting time, they’re all sensitive factors, and the sensitivity degree in negative sequence are water-cement ratio, time and temperature.

关 键 词：渗透 注浆 马格理论 粘时变 变粘度 敏感性 

分 类 号：TU4[建筑科学—土工工程] TV543[水利工程—水利水电工程]