离军高速公路桥隧下伏采空区处治效果超声波检测研究

煤矿采空区即地下采矿所形成的空洞,是一种不良的地质现象,它往往破坏和削弱其上覆岩土层的稳定性,使其产生变形,直至崩塌、塌陷等,对上方建筑物造成危害。高速公路穿越煤矿采空区的问题是近年来公路建设中经常遇到的技术难题,文章以青岛—银川国道主干线离石—军渡段高速公路为工程背景,对高速公路下伏采空塌陷区的处治进行了检测研究。

Examination studies of ultrasonic wave on treatment quality of Li Shi to Jun Du expressway bridge and tunnel through working out area

Working out area is made by exploring mine,and is a poor geography phenomenon.The stability of rock on it is seriously destroyed and reduced by the underlyingworkingout area,which frequentlycause deformation or even collapse and depression,and hence gravelythreatens the buildings above it.The difficult technical problem appears that expressway is built on working out area in recent years.From Lishi to Jundu of national highway from Qingdao to Yinchuan is adopted as an example,treatment examination methods o...