| 袁广祥.隧道工程勘察阶段涌水预测的问题探讨[J].地质与勘探,2015,51(5):993-998 |
| 隧道工程勘察阶段涌水预测的问题探讨 |
| On prediction of water inflow into tunnels during engineering surveys |
| 投稿时间：2015-01-18 修订日期：2015-07-23 |
| DOI： |
| 中文关键词: 隧道 勘察 涌水 预测 |
| 英文关键词: tunnel, survey, water inflow, prediction |
| 基金项目:国家自然科学基金项目（编号：41402269）、河南省科技创新人才计划、华北水利水电大学青年科技创新人才项目联合资助。 |
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| 中文摘要: |
| 隧道涌水量预测对隧道的设计和施工至关重要，相关勘察规范要求在一定阶段预测隧道涌水量。目前有多种方法用于预测隧道涌水量，但每种方法都有其适用范围。通过对这些方法进行分析，结合对实际隧道工程涌水量的预测，对于裂隙岩体中的隧道，要准确预测隧道涌水量，需要解决两个问题：地下水位和渗透系数。以钻孔水位为基础，利用物探技术，建立等效的虚拟基岩裂隙水连续水位线。渗透系数一般由钻孔水文地质试验测得，在涌水预测时，应根据优势结构面产状进行修正。 |
| 英文摘要: |
| Prediction of water inflow into a tunnel is very important for design and construction．The relevant codes require predict water yield into the tunnel during some stage of a survey. There are many methods for such prediction, while each has its own applicable limit. When predicting water yield into tunnel during investigation, we find that two questions should be solved to realize precise prediction: determination of the water table and the coefficient of permeability. An equivalent water table of bedrock fissure water can be obtained based on drill holes and geophysical methods. The coefficient of permeability can be measured by hydrogeological tests, which should be amended based on occurrence of main discontinuities. |
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