一种新型综合注浆加固试验系统的研制及应用

发布时间：2018-04-16 12:08

本文选题：试验系统 + 断层角砾　；参考：《工程科学学报》2017年08期

【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.
[Abstract]:In view of the disadvantages of the existing grouting test equipment which is difficult to balance the sealing effect required by high pressure grouting and the space structure required for multifunctional test, a new set of multifunctional comprehensive grouting reinforcement test system is developed.The advantages of the test system are that the size of the test system is moderate, the structure is reasonable, and the test space of the monitoring element is laid and the sealing effect is good.It can be used to carry out multi-type grouting reinforcement tests for different rock and soil media. It has the function of parallel collection of multi-element physical information. It can meet the needs of testing the macroscopic physical and mechanical properties of solid and the microcosmic coupling mechanism between slurry and rock interface at the same time.The system has been successfully applied to the laboratory simulation test of grouting reinforcement of fault breccia medium. The mechanism of grouting reinforcement of fault breccia medium is studied from the aspects of stress response-transfer characteristics, the law of increasing solid strength and reinforcement mode, etc.The empirical formula for strength growth of boulder medium is presented, and the mechanism of transfer and distribution of grouting pressure during reinforcement is revealed.
【作者单位】：山东大学岩土与结构工程研究中心;国网山东省电力公司经济技术研究院;山东科技大学地球科学与工程学院;
【基金】：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)
【分类号】：TU753.8

【相似文献】