工程科学学报，第39卷.第8期：1268-1277,2017年8月 Chinese Journal of Engineering,Vol.39,No.8:1268-1277,August 2017 D0L:10.13374/j.issn2095-9389.2017.08.018;htp:/journals..usth.edu.cn 一种新型综合注浆加固试验系统的研制及应用 张家奇)，李术才”，张霄)四，张庆松)，刘振国)，张伟杰3)，李鹏) 1)山东大学岩土与结构工程研究中心，济南2500612)国网山东省电力公司经济技术研究院，济南250001 3)山东科技大学地球科学与工程学院.青岛266510 ☒通信作者，E-mail:sduzhangxiao(@sdu.cdu.cm 摘要针对现有注浆加固试验装置难以平衡高压注浆所需密封效果和多功能试验所需空间结构的缺点，研制了一套新型 多功能综合注浆加固试验系统.该试验系统的优点为：(1)尺寸适中、结构合理，既具有布设监测元件的试验空间又具有良好 的密封效果：(2)适用范围广，可针对不同岩土体介质开展多类注浆加固试验：(3)具备多元物理信息并行采集功能：(4)可同 时满足加固体宏观物理力学性质测试及浆-岩界面微观耦合机制的研究需求.该系统成功应用于断层角砾介质注浆加固室 内模拟试验，分别从应力响应-传递特征、加固体强度增长规律及加固模式等方面探究了断层角砾介质的注浆加固机理，提出 了角砾介质强度增长的经验公式，揭示了加固过程中注浆压力的传递分配机制. 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 分类号TU457 Development and application of a new comprehensive grouting reinforcement test system ZHANG Jia-qi,LI Shu-cai,ZHANG Xiao),ZHANG Qing-song,LIU Zhen-guo2),ZHANG Wei-jie,LI Peng) 1)Geotechnical and Structural Engineering Research Center,Shandong University,Jinan 250061,China 2)Economic Technology Research Institute,State Grid Shandong Electric Power Company,Jinan 250001,China 3)College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao 266510,China Corresponding author,E-mail:sduzhangxiao@sdu.edu.cn 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. KEY WORDS test system;fault breccia;grouting reinforcement;indoor simulation test;grouting pressure 收稿日期：2017-04-07 基金项目：国家重点研发计划课题资助项目(2016YFC0801604):国家重点基础研究发展规划(973)资助项目(2013CB036000)工程科学学报,第 39 卷,第 8 期:1268鄄鄄1277,2017 年 8 月 Chinese Journal of Engineering, Vol. 39, No. 8: 1268鄄鄄1277, August 2017 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2017. 08. 018; http: / / journals. ustb. edu. cn 一种新型综合注浆加固试验系统的研制及应用 张家奇1) , 李术才1) , 张 霄1) 苣 , 张庆松1) , 刘振国2) , 张伟杰3) , 李 鹏1) 1) 山东大学岩土与结构工程研究中心, 济南 250061 2) 国网山东省电力公司经济技术研究院, 济南 250001 3) 山东科技大学地球科学与工程学院, 青岛 266510 苣 通信作者, E鄄mail: sduzhangxiao@ sdu. edu. cn 收稿日期: 2017鄄鄄04鄄鄄07 基金项目: 国家重点研发计划课题资助项目(2016YFC0801604);国家重点基础研究发展规划(973)资助项目(2013CB036000) 摘 要 针对现有注浆加固试验装置难以平衡高压注浆所需密封效果和多功能试验所需空间结构的缺点,研制了一套新型 多功能综合注浆加固试验系统. 该试验系统的优点为:(1)尺寸适中、结构合理,既具有布设监测元件的试验空间又具有良好 的密封效果;(2)适用范围广,可针对不同岩土体介质开展多类注浆加固试验;(3)具备多元物理信息并行采集功能;(4)可同 时满足加固体宏观物理力学性质测试及浆鄄鄄岩界面微观耦合机制的研究需求. 该系统成功应用于断层角砾介质注浆加固室 内模拟试验,分别从应力响应鄄鄄传递特征、加固体强度增长规律及加固模式等方面探究了断层角砾介质的注浆加固机理,提出 了角砾介质强度增长的经验公式,揭示了加固过程中注浆压力的传递分配机制. 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 分类号 TU457 Development and application of a new comprehensive grouting reinforcement test system ZHANG Jia鄄qi 1) , LI Shu鄄cai 1) , ZHANG Xiao 1) 苣 , ZHANG Qing鄄song 1) , LIU Zhen鄄guo 2) , ZHANG Wei鄄jie 3) , LI Peng 1) 1) Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China 2) Economic & Technology Research Institute, State Grid Shandong Electric Power Company, Jinan 250001, China 3) College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China 苣 Corresponding author, E鄄mail: sduzhangxiao@ sdu. edu. cn 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鄄 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鄄鄄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鄄 ry鄄鄄rock interface. An orthogonal grouting reinforcement test was designed for fault breccia using the new device. The study then inves鄄 tigated the grouting reinforcement mechanism of fault breccia with respect to the stress response鄄鄄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鄄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. KEY WORDS test system; fault breccia; grouting reinforcement; indoor simulation test; grouting pressure