摘要
参考《工程地质手册》(第五版)水位恢复法,可能会产生计算所得渗透系数K较实际值偏低的后果。水位恢复的半对数曲线镜像处理后得到近似的定流量抽水曲线,取其中部近直线段延长作为定流量抽水的直线,直接测得的α、S_(2)、S_(1)、t_(2)、t_(1)数据,结合已知的H,可快速计算出导水系数T,最后推算出渗透系数K。
Refer to "Engineering Geology Manual"(5th edition) water level restoration method,the result may be that the calculated permeability coefficient K is lower than the actual value.The semi-logarithmic curve of water level recovery is mirrored to obtain an approximate curve of constant flow pumping,the central nearly straight segment is extended as the straight line for pumping water at a fixed flow rate,direct measurement of α,S_2,S_1,t_2,t_(1) and other data,combining the known H,the conductivity coefficient T can be calculated quickly,finally,the permeability coefficient K is calculated.
作者
朱海宝
ZHU Hai-bao(Seventh geological brigade of Guangdong Geological Bureau,Guangdong Huizhou 516008)
出处
《世界有色金属》
2023年第24期158-160,共3页
World Nonferrous Metals
关键词
弱富水层
水位恢复法
半对数曲线
图解法
渗透系数
Poor water-bearing stratum
Water level restoration method
Half of logarithmic curve
Graphic method
Permeability coefficient
