补给模数大井法计算矿坑涌水量  

Calculating of mine discharge by using recharge modulus large-well method

作　　者：钱学溥[1] 张明燕[2] 于义强 王延涛 修艳敏[2] Qian Xuepu Zhang Mingyan Yu Yiqiang Wang Yantao Xiu Yanmin(Ministry of Land and Resources, Beijing 100812, China The Mineral Resources and Reserves Evaluation Center of MLR, Beijing 100035, China No. 1 Institute of Geology and Mineral Resources of Shandong Province, Jinan 250014, China China Railway Engineering Consulting Group Co. , Ltd, Beijing 100055, China)

机构地区：[1]国土资源部,北京100812 [2]国土资源部矿产资源储量评审中心,北京100035 [3]山东省第一地质矿产勘查院,济南250014 [4]中铁工程设计咨询集团有限公司,北京100055

出　　处：《工程勘察》2017年第11期7-12,共6页Geotechnical Investigation & Surveying

摘　　要：传统的大井法,简称经验半径大井法,利用计算抽水孔影响半径的经验公式,代替了计算矿坑排水影响半径的公式,计算的矿坑涌水量往往偏大,可信度只有0.3左右。作者考虑,矿坑排水引用影响半径与矿坑排水量及地下水补给模数有关,推导出计算矿坑排水引用影响半径的理论公式。利用这个公式与大井法公式配合,简称补给模数大井法,用此方法计算的矿坑涌水量,可信度可以提高到0.4左右。The traditional large-well method is also called the empirical radius large-well method by using the empirical formula for calculating the influence radius of pumping hole instead of calculating the influence radius of mine drainage to calculate mine discharge. But the results are often larger than the actual mine discharge, and the reliability is only about 0.3. The authors consider that the quoting influence radius of mine drainage is relevant with mine drainage volume and groundwater recharge modulus, and have derived the formula for calculating the quoting influence radius of mine drainage. Using this formula with the large-well formula whose abbreviation is the recharge modulus large-well method to calculate the mine discharge can increase the reliability to about 0. 4.

关 键 词：经验半径大井法 补给模数大井法 地下水补给模数 矿坑涌水量 

分 类 号：P641.2[天文地球—地质矿产勘探]