节理裂隙边坡锚注加固力学模型与实验研究  

Mechanics model and test of bolting grouting reinforcement of jointed cranny slope

作　　者：许万忠[1] 曹平[2] 高秉勋 李光明 白雪松 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]中南大学资源与安全工程学院,湖南长沙410083 [3]云南有色地质勘测设计院,云南昆明65005l [4]云南地质工程勘察设计研究院昆明分院,云南昆明650028 [5]昆明市建筑设计研究院有限责任公司,云南昆明650093

出　　处：《中南大学学报（自然科学版）》2012年第7期2740-2745,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(50274074)

摘　　要：对加锚注浆节理模型进行力学分析,并与注浆胶结裂隙岩体模型力学试验结果进行对比验证。研究结果表明:压力注浆能够提高加锚节理裂隙边坡弱面的抗剪强度及抗剪刚度;裂隙注浆胶结体强度与浆液配比、注浆压力、裂隙所含介质的组成以及岩体赋存应力场、渗流场有关;锚杆与注浆体共同作用能够发挥两者各自的力学特性,从而提高边坡的加固效果。Mechanical analysis about the jointed model of bolting grouting was done. Comparison between the jointed model and grouting jointed mechanical model was made. The results show that grouting can increase the resisting shear strength and shear stiffness of bolted weak plane of high slope. The intensity of jointed grouting body is related to serum proportioning grouting pressure, components of cranny medium, stress field and percolation field of rock masses. The interaction of anchor and grouting body can develop their respective mechanical characteristic, which can improve the reinforcing effect of high slope.

关 键 词：锚注 加锚节理 裂隙注浆 抗剪强度 抗剪刚度 

分 类 号：TU353.6[建筑科学—结构工程]