湖下采煤下渗模型试验与规律研究

杨令强; 王岩; 马静

doi:10.11779/CJGE2017S1005

湖下采煤下渗模型试验与规律研究 English Version

1. 济南大学土木建筑学院,山东济南 250022;
2. 济南大学,山东济南 250022;
3. 济南大学自动化学院,山东济南 250022

基金项目: 山东省自然科学基金项目（ZR2014EL038）; 山东省水利科; 研计划项目（SDSLKY201301）

详细信息

作者简介:
杨令强（1972-）,男,山东聊城,教授,博士,主要从事水工结构研究工作。E-mail:cea_yanglq@ujn.edu.cn。

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出版历程
- 收稿日期: 2016-11-27
- 发布日期: 2017-11-19

Model tests on seepage and rules of coal mining under water

1. School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China;
2. University of Jinan, Jinan 250022, China;
3. School of Automation and Electrical Engineering, University of Jinan, Jinan 250022, China

摘要

摘要: 根据地质力学模型试验原理和南四湖的工程地质与水文地质条件,建立了12个地质模型。通过模拟湖下煤层的开采过程,分析了煤层上部的砂岩和灰岩的破坏特征及地面开采盆地的形成过程。通过测量上层滞水位和潜水位随开采的变化和水位的恢复过程分析了湖下采煤对南四湖湖水的影响和湖水下渗的规律。研究发现：如果湖下存在2~3 m左右的黏土层,地表湖水基本上不会渗透到地下,也不会造成地表水的大量损失。开采时潜水位会随着开采产生周期性下降,停采后周围潜水会侧向补给采空区,潜水位逐渐恢复,在南四湖的地质条件下,潜水位恢复到原来的95%,大约需要一年的时间。
- 南四湖 /
- 渗流 /
- 采煤
Abstract: Based on the test principles of geological mechanics model and engineering geological and hydrogeological conditions of Nansi Lake, 12 geological mechanics model are established. By simulating the coal mining under the lake, the failure process of sandstone and limestone above the coal and the formation process of ground mining basin are studied. By measuring the change of perched water level and groundwater level with coal mining under the lake, the water level of the lake is studied. The seepage process from the lake to the mining pit is also studied. If there is a clay layer with depth of 2 to 3 m, the amount of leakage will be very small. The water in the lake will not be affected. The perched water level will cyclically decline with coal mining. But when the coal mining stops, the perched water level will gradually recover. For the restoration of the perched water level to its original 95%, it needs about 1 year under the engineering geological and hydrogeological conditions of Nansi Lake.
- Nansi Lake /
- seepage /
- coal mining

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参考文献(8)

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