浅谈采空区道路桥梁设计施工需要注意的相关问题

Relevant Problems Needing Attention in the Design and Construction of Roads and Bridges in Goaf

探讨采空区道路桥梁设计施工时应重视采空区地质情况,积极走访、收集并掌握采空区的地下采空详细情况,因地制宜,设计期间尽量避让采空区,施工期间发现后采用多方案比选,选择安全、经济、可靠的方案。以门头沟采空棚户区九龙路道路改造工程为例,施工中遇到采煤巷道后,地质勘察补勘难以探明地下巷道情况(或探明需要费用巨大),通过桥梁方案、半路半桥方案及涵洞方案等多方案比选,综合技术经济造价等对比情况,统筹协调规划协商调整,确定了该方案采用设置涵洞通过该采煤巷道路段,确保工程方案满足规划、结构安全、工程经济、施工便捷。

when discussing the design and construction of roads and bridges in the goaf,we should pay attention to the geological conditions of the goaf,actively visit,collect and master the underground goaf details of the goaf,adjust measures to local conditions,avoid the goaf as much as possible during the design period,and select a safe,economic and reliable scheme after it is found during the construction period.Taking the road reconstruction project of Jiulong road in Mentougou goaf shanty town as an example,after encountering coal mining roadway during construction,it is difficult to find out the underground roadway through supplementary geological survey(or the cost of exploration is huge).Through the comparison and selection of bridge scheme,half road and half bridge scheme and culvert scheme,and the comparison of technical and economic cost,make overall planning,negotiation and adjustment,It is determined that the scheme adopts the setting of culvert to pass through the road section of the coal mining roadway,so as to ensure that the engineering scheme meets the planning,structural safety,engineering economy and convenient construction.