【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556.4～2 887.4 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。更多还原

【Abstract】 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 2 887.4 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.更多还原