碎石土地基水平向载荷板试验分析  

Analysis of the horizontal loading plate tests on gravel soil

作　　者：袁文 龚维明[2] 陶齐宇 李超 黄红亚 YUAN Wen;GONG Wei-ming;TAO Qi-yu;LI Chao;HUANG Hong-ya(Bridge engineering branch,Sichuan transportation construction group Co.,Ltd.,Chengdu 610041,China;School of civil engineering,Southeast university,Nanjing 211189,China;Sichuan highway planning survey design and research institute Co.,Ltd.,Chengdu 610041,China;Sichuan Yijin expressway Co.,Ltd.,Xichang 615099,Sichuan province,China)

机构地区：[1]四川省交通建设集团有限公司桥梁分公司,成都610041 [2]东南大学土木工程学院,南京211189 [3]四川省公路规划勘察设计研究院有限公司,成都610041 [4]四川沿江宜金高速公路有限公司,四川西昌615099

出　　处：《吉林建筑大学学报》2024年第6期1-5,共5页Journal of Jilin Jianzhu University

基　　金：国家自然科学基金(52178317).

摘　　要：通过开展平洞内部水平向载荷板试验探究碎石土地基的宏观力学特性,确定碎石土地基水平向地基承载力特征值为0.95 MPa,水平变形模量E h为149.8~696.4 MPa,水平基准基床系数k h为556.4~2887.4 MN/m 3。试验结果表明:碎石土的水平变形参数受岩体破碎程度的影响,具有一定的离散性,即岩体破碎越严重,水平变形模量或水平基准基床系数越小。Experimental research was conducted on the horizontal loading plate test inside the adit to investigate the macroscopic mechanical properties of the crushed stone foundation.The characteristic value of horizontal bearing capacity for the crushed stone foundation is 0.95 MPa,with horizontal deformation modulus E h ranging from 149.8 to 696.4 MPa,and horizontal reference base coefficient k h ranging from 556.4 to 2887.4 MN/m 3.The test results show that the horizontal deformation parameters of the rubble soil are affected by the degree of rock mass fragmentation,and have certain discreteness,is the more sever of rock mass fragmentation,the smaller the horizontal deformation modulus or horizontal reference base coefficient.

关 键 词：水平向载荷板试验 水平变形模量 原位试验 碎石土 

分 类 号：TU433[建筑科学—岩土工程]