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东交口新村房屋裂缝是采空区地表变形、地表水入渗冲蚀和建筑荷载等众多因素综合作用的结果,主要归纳为二:1991年前,采空区未稳定,以采空区的地表残余变形破坏为主;1991年后,采空区基本稳定,以地表水的大量入渗冲蚀破坏为主。针对房屋裂缝的原因和主要影响因素,采取地表排水、采空区深孔注浆与“离层裂隙区”浅孔注浆加固相结合的综合治理方案,取得明显成效。
The cracks in the roof of Dongjiao Kou village are the result of many factors such as the surface deformation of the goaf, the infiltration and erosion of surface water, and the construction load. The main results are summarized as follows: Before 1991, the goaf was not stable and the surface of the goaf Residual deformation and destruction are the main. After 1991, the mined-out area is basically stable, with a large amount of infiltration and erosion of surface water as the main factor. In view of the causes of the cracks in the houses and the main influencing factors, the comprehensive treatment plan of combining surface drainage, deep-hole grouting with goafs and shallow grouting reinforcement with “fissure zone separation ” has been adopted and achieved remarkable results.