玄武岩地区强风化破碎带岩层地基承载力试验研究  

Test and Study on Bearing Cpacity of Foundation on Basalt Area's Strong Weathering-Fracture Zone

作　　者：姚永胜[1,2] 唐伯明[2] 朱洪洲[2] 肖巧林[2] 

机构地区：[1]长沙理工大学交通运输工程学院,长沙市410076 [2]重庆交通大学土木建筑学院,重庆市400074

出　　处：《公路》2012年第10期37-40,共4页Highway

基　　金：西部交通建设科技项目;项目编号2011 318 346 770

摘　　要：以海口～屯昌高速公路工程为背景,通过荷载试验,对玄武岩地区强风化破碎带岩层的地基承载力进行了验证。通过P-S曲线来反映地基的变形情况,并分析了地基的变形模量和地基承载力,最后以地基的极限承载力为标准,验证该地区的地基承载力能否满足工程需要。结果表明,该地区的地基承载力能够满足公路工程的设计要求。同时,试验结果对该地区公路的设计和施工具有重要指导意义。On the basis of the Haikou-Tunchang Expressway,through the load test,verifying the bearing capacity of foundation on the basalt area＇s strong weathering-fracture zone,the deformation conditions of the foundation are known by the curve of P-S,the modulus of the foundation deformation and the bearing value of the foundation are also analyzed.Finally,taking the foundation＇s ultimate bearing capacity as the standard,verifying this region of the foundation bearing capacity can meet the engineering needs.The results show that the area of this foundation bearing capacity can meet the design requirements of highway,at the same time,the results of the test can also guide the direction of the highway＇s design and construction.

关 键 词：玄武岩 强风化破碎带 荷载试验 地基承载力 

分 类 号：TU431[建筑科学—岩土工程]