曹县梁堤头地区第四系地裂缝成因及防治

Causes and Prevention of Quaternary Ground Fissures in Liangditou Area of Cao County

摘要:

鲁豫交界的曹县黄河故道地区，地势较高的自然堤堤缘区是地裂缝等地质灾害的高发区。地裂缝主要由地表厚粘土层干湿胀缩产生，有一定的隐蔽性，并受地形和大气影响。地下水动态变化对地裂缝影响不大。地表裂隙张力的直接作用、建筑物的非均质土地基不均匀沉陷等因素的存在共同导致了该区民房开裂。可以采取加固地基和搬迁避让等方法进行防治。

Abstract:

In old course of the Yellow River in Caoxian county, high natural dam area is a high happening area of geological disasters, such as ground fissures. Ground fissures are mainly caused by dry, wet, expansion and contraction of thick clay layer surface. It has certain concealment and be affected by terrain and atmosphere. Groundwater dynamic changes will affect ground fissures weekly. Direct effect of surface tension fracture, inhomogeneous settlement of foundation of heterogeneous soil of buildings have caused ground crackings together. Foundation reinforcement, moving and avoidance can be carried out for prevention and control.