摘要
地面沉降是地面高程缓慢降低的环境地质现象,严重时就会演变成一种地质灾害。造成地面沉降的原因有天然和人为因素,常见的地面沉降绝大部分属于人为因素。由于地下水过量开采,从而造成地面沉降变形、出现裂缝、导致地面建筑物破坏等,影响人们的正常生活,危害巨大。控制地面沉降主要因素在于加强地下水资源的管理,科学合理开发利用,建立区域地面沉降模型,预测不同地下水开采方案和开采量所可能带来的沉降量,优化最佳开采量,有效防控地下水超采引起的地面沉降。
Ground subsidence is the environmental geological phenomenon,furthermore it will evolve into a kind of geological disasters.Land subsidence is due to natural and man-made factors and common ground subsidence mainly is caused by the human being over-extraction of groundwater,so it results in ground deformation,cracks and other destruction of the buildings on the surface,which affecting the normal life of the people and is very dangerous.The main factors how to control the land subsidence is to strengthen the management of groundwater resources,scientific and is rational development and utilization of a regional land subsidence model to predict the amount of different groundwater mining programs and exploitation potential settlement,to optimize the best extraction so that we can effectively prevent and control land subsidence especially caused by excessive extraction of groundwater.
出处
《地下水》
2012年第6期1-5,共5页
Ground water
关键词
地面沉降
过量开采地下水
区域地面沉降模型
土层变形
蠕变
Ground subsidence
over-exploitation of groundwater
the regional land subsidence-model
soil distortion
