CAJ | 학술논문

为了研究条形基础砂土地基的剪切破坏形式和承栽机理,在相似理论的指导下,进行了一组条形基础砂土地基的模型试验,模拟了砂土地基受荷后产生变形、扩展直到破坏的全过程;测量并分析了地基中不同点处的土压力大小及其分布规律,观测了剪切带的形成和发展过程.结果表明,模型试验能够很好地体现砂土地基变形、破坏的整个过程及其沉降变形特性,地基中各点的真实应力状态及其变化规律,对于研究深基坑变形过程和破坏形态具有应用价值.
위료연구조형기출사토지기적전절파배형식화승재궤리,재상사이론적지도하,진행료일조조형기출사토지기적모형시험,모의료사토지기수하후산생변형、확전직도파배적전과정;측량병분석료지기중불동점처적토압력대소급기분포규률,관측료전절대적형성화발전과정.결과표명,모형시험능구흔호지체현사토지기변형、파배적정개과정급기침강변형특성,지기중각점적진실응력상태급기변화규률,대우연구심기갱변형과정화파배형태구유응용개치.
Based on similarity theory,the paper has studied the disruptive mode and the load bearing mechanism of the strip foundation.One model test has been designed to simulate the whole processes from deformation to destruction of the silty clay and the sandy soil foundation.The values in different sites and the distribution rule of earth pressure in the foundation have been analyzed,and the formation and the development process of shear band have been observed.The results show that the model test can well reflect the whole foundation failure process,the subsidence distortion characteristics,the foundation stress distribution,the destruction shape and mechanism.It will be an effective way in studying the disruptive mode and the load bearing mechanism of foundation.