考虑潜水位埋深影响的地表移动观测方法探讨

Discussion on the Land Surface Movement Observation Method with the Affection of Phreatic Water Level

基于对高潜水位地区常规地表移动观测存在的弊端,文中结合高潜水位地区开采沉陷的特点提出了适用于该区地表移动观测的新方法。对观测方法和观测数据处理进行了分析:(1)高潜水位地区地表移动观测关键在于地表移动观测盲区的确定和地表移动观测点的预处理;(2)提出了观测点第m次地表移动观测水平移动um和下沉值wm的表示方法;(3)提出了沉陷积水体积公式。

The new method was proposed based on the disadvantages of conventional method,combining the features of mining subsidence surface movement with high phreatic water level,and methods of observation and data processing were analyzed:( 1) the key of land surface movement observation with high phreatic water level was the determination of surface movement observation blind and the pretreatment of surface movement observation points;( 2) Representation methods of the m- th surface observation of surface movement observation horizontal movement ' um ' and subsidence ' wm' were proposed;( 3) subsidence water volume formula was proposed.