| 某铁路隧道涌水量预测与分析 |
| |
| 引用本文： | 李建平,;刘汉雄.某铁路隧道涌水量预测与分析[J].中国煤炭地质,2009(7):34-36. |
| |
| 作者姓名： | 李建平 ;刘汉雄 |
| |
| 作者单位： | [1]湖南省煤田地质局第三勘探队,湖南永州425000; [2]湖南煤田地质局第二勘探队,湖南涟源417100 |
| |
| 摘 要： | 为进行某铁路隧道的设计与施工,获取相关的水文地质参数,进行了3个钻孔的抽水试验,以获取相关的水文地质参数。运用地下水径流模数法、大气降雨入渗法和地下水动力学法对隧道涌水量进行了计算,计算结果显示：地下径流模数法的计算值偏小,降水入渗法的计算值适中,地下水动力学法的精度较高,但计算的涌水量值较大;三种方法比较,决定结果采用大值,即涌水量正常值取6150m^3/d,最大涌水量值取9770m^3/d。提出了采用双向自流排水,适当布设施工监控设备的工程建议。
|
| 关 键 词： | 裂隙含水层 抽水试验 涌水量计算 计算结果分析 某铁路隧道 |
Outflow Rate Prediction and Analysis of a Railway Tunnel |
| |
| Institution: | Li Jianping, Liu Hanxiong(1. The Third Exploration Team, Hunan Bureau of Coal Geological Exploration, Yongzhou, Hunan 425000; 2. The Second Exploration Team, Hunan Bureau of Coal Geological Exploration, Lianyuan, Hunan 417100) |
| |
| Abstract: | Owing to design and construction of a railway tunnel, pumping tests in 3 boreholes carried out for related hydrogeological parameters needed. Estimated outflow rate of the tunnel through the use of groundwater runoff modulus, atmospheric precipitation infiltration and groundwater dynamic methods, the results demonstrated that： the result from groundwater modulus method is on the low side; from precipitation infiltration method is moderate; while from groundwater dynamic method has higher accuracy, but estimated outflow rate is greater. After comparison, the greater figures are adopted, that is the normal outflow rate 6150m^3/d, maximum 9770m^3/d. Engineering suggestions of bidirectional gravity drainage, appropriate arrangement of construction monitoring equipments put forward. |
| |
| Keywords: | fissure aquifer pumping test outflow rate estimation result analysis a railway tunnel |
| 本文献已被 维普 等数据库收录！ |
|
