the surface subsidence的意思|示意

The surface subsidence above coalmine gob area is a typical and serious geological environment problem in Yongcheng mining area.

煤矿采空区地面沉陷是永城矿区典型、突出的矿山地质环境问题。

Over geologic time the central volcano becomes extinct, followed by erosion and subsidence beneath the sea surface, leaving the coral reefs as a ring around (or cap on) the submerged island remnant.

由于侵蚀和海底的下沉，经过地质时代的变迁，中心的火山已经不见踪影，而只留下珊瑚礁环绕或覆盖在沉入海底的火山岛上。

The computer simulation results provide a scientific basis for decision-making of the mine, and also make a good attempt for further studying the surface subsidence caused by underground mining.

计算机模拟结果为矿山决策支持提供了科学依据，也为进一步研究因地下开采引起的地表沉降问题做了有益的尝试。

The surface subsidence for caving mining used for metal mines with steep veins, a worldwide difficult problem, belongs to the realm of surface movement under the effect of tectonic stress.

崩落法开采急倾斜金属矿山的地表沉陷问题是国际性重大难题，属构造应力影响下地表移动问题。

Based on the example of south dump slope of Anjialing open colliery in Pingshuo, the rule of surface subsidence was studied using FLAC3D.

为研究露天煤矿排土场边坡下采动沉陷规律，结合平朔安家岭露天矿南排土场边坡的实例，采用FLAC3D程序进行了数值模拟计算。

With the difference of lithological characters considered, the generalized subsidence formula for strata and surface movement is derived. Some applied fields and an example are given.

在考虑岩性差异的条件下，推导出了岩层与地表移动的广义下沉公式，最后列举了其应用意义和实例。