The Experimental Study Of Analog Simulation On Stability Analyse Of The Building Foundation With Goaf

With cosmically and extensive mining of out-of-order of exceed general, the big area and cosmically goaf has come into being in Midwest of our country. Because this is the factor which restricts the construct of important basal engineering (for example : high speed road, railway of modernization, airdrome, the project of diverting water from the Yellow River and eastern transfer of western gas) and building programming of the small towns. So, the stability study of the building foundation with goaf is propitious to disposing surroundings of diggings, utilizing the soil of diggings, construct of important infrastructure and programming of the small towns.The analog simulation method is a important approach for people to study the inherent law of ground stability with goaf. Thissubject exerts the experiment method of analogue modeling, and we take geologic mining condition of the Xin Zhi Colliery of Huo Zhou Mineral Bureau in Shang Xi province as the physical model of background design. The experiment is divided into two phases, the first phase simulates the course of mining subsidence, we study rule of movement transmogrification of mining terrane. In the second phase, after the mining subsidence is gradually stabilization, we bring into bear different load in the different location of subsiding basin, and we study ground stability with goaf. We lay the observing point from the terrane interior to the ground multiplayer, and we can observe these points from the whole section of model, we analyse the foundation stability according to observing the law of moving transmogrification.This subject is a new problem in home and aboard. At present, we can not see the systemic reports with regard to evaluating the foundation stability with goaf, and judging the range of foundation treatment. This paper firstly adopts the experiment of analog simulation to studying the stability of the building foundation with goaf. We hope that it is positive meaning to enriching the theory ofthe earth and guiding the practice of engineering.