工程科学学报2017，Vol.39Issue(8)：1268-1277,10.DOI:10.13374/j.issn2095-9389.2017.08.018
一种新型综合注浆加固试验系统的研制及应用
Development and application of a new comprehensive grouting reinforcement test system
摘要
Abstract
Existing grouting test devices have difficulty providing sufficient sealing effect and experimental space in multifunctional tests. Due to the limitations of current devices, this paper developed a new comprehensive grouting reinforcement test system. The ma-jor advantages of this system include:(1) its moderate size and reasonable structure that offer a large experimental space and good sealing property;(2) its ability to simulate the different groundwater environments and grouting conditions of rock soil media;(3) its ability to obtain a variety of physical information for researching the space-time response law of reinforcement parameters;and (4) its ability to simultaneously test the compressive and shear strengths of the solid and microscopic grouting coupling mechanisms of the slur-ry-rock interface. An orthogonal grouting reinforcement test was designed for fault breccia using the new device. The study then inves-tigated the grouting reinforcement mechanism of fault breccia with respect to the stress response-transfer characteristics, the growth law of solid strength, and the reinforcement mode. The test results show fault breccia to be mainly reinforced by permeation grouting and the grouting reinforcement model can be divided into three types—substrate, micro-splitting, and significant splitting. The study achieved an increase in the strength of grouting reinforcement bodies by changing the medium connection mode and fitted the empirical formula for the increased strength of solid grouting. It also determined the distribution and transfer mechanism of grouting pressure.关键词
试验系统/断层角砾/注浆加固/室内模拟试验/注浆压力Key words
test system/fault breccia/grouting reinforcement/indoor simulation test/grouting pressure分类
建筑与水利引用本文复制引用
张家奇,李术才,张霄,张庆松,刘振国,张伟杰,李鹏..一种新型综合注浆加固试验系统的研制及应用[J].工程科学学报,2017,39(8):1268-1277,10.基金项目
国家重点研发计划课题资助项目(2016YFC0801604) （2016YFC0801604）
国家重点基础研究发展规划(973)资助项目(2013CB036000) （973）
