厚松散承压含水层失水沉降模拟实验研究

采矿与安全工程学报 ›› 2015, Vol. 32 ›› Issue (5): 821-826.

厚松散承压含水层失水沉降模拟实验研究

安徽理工大学测绘学院，安徽淮南 232001

收稿日期:2014-11-02 出版日期:2015-09-15 发布日期:2019-09-02
作者简介:徐良骥(1978—)，男，安徽省潜山县人，博士，副教授，从事矿山开采沉陷与土地复垦方面的研究。
基金资助:
安徽省对外科技合作计划项目(1503062020)；国家自然科学基金项目(41472323)

Water loss settlement simulation of thick unconsolidated confined aquifer layer

Received:2014-11-02 Online:2015-09-15 Published:2019-09-02

摘要/Abstract

摘要： 为了揭示煤矿开采引起的厚松散层承压含水层失水增大地表移动变形量的机理，采用专门设计的模拟实验装置，开展松散层承压水失水沉降模拟实验，结合理论分析了松散层承压水失水对地表下沉的影响机理。实验结果表明：土体在未加压与加压的情况下，都会因为失水产生固结沉降，造成含水层的固结压缩变形；在相同条件下，细粒径土质比粗粒径土质产生的变形量更大。

关键词: 厚松散层, 承压含水层, 疏排水沉降, 地表移动变形, 模拟实验

Abstract: To reveal the mechanism of surface movement and deformation caused by water loss in thick unconsolidated confined aquifer during coal mining, based on specially designed experimental equipment, the water loss settlement experiment of unconsolidated confined aquifer was carried out, and the effect mechanism of confined water loss in unconsolidated layer to surface subsidence was analyzed. The results show that consolidation settlement of soil can be appeared due to water loss no matter with pressure or not, which is also the reason for consolidation and compression deformation of aquifer. Under the same conditions, the deformation of soil with fine particle size is larger than that of soil with coarse particle size.

Key words: thick unconsolidated layer, confined aquifer, dewater settlement, ground movement and deformation, simulation test

徐良骥，朱楠，马荣振，刘潇鹏. 厚松散承压含水层失水沉降模拟实验研究[J]. 采矿与安全工程学报, 2015, 32(5): 821-826.

XU Liangji，ZHU Nan，MA Rongzhen，LIU Xiaopeng. Water loss settlement simulation of thick unconsolidated confined aquifer layer[J]. Journal of Mining & Safety Engineering, 2015, 32(5): 821-826.

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