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.
作者
袁文
龚维明
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)
出处
《吉林建筑大学学报》
CAS
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).
关键词
水平向载荷板试验
水平变形模量
原位试验
碎石土
horizontal loading plate test
horizontal deformation modulus
in-situ test
gravel soil
