摘要
毛坪铅锌矿地表水系发育,洛泽河自南往北流经矿区。受矿坑长期排水影响,基岩水位标高比洛泽河水位低20~145m,洛泽河呈悬挂式河流。本文通过开展放水试验、示踪试验等一系列野外试验,对洛泽河的渗漏性进行了研究。研究结果表明:洛泽河水渗漏集中于矿区北部二叠系栖霞茅口组灰岩段;在泥盆系宰格组白云岩段存在一定渗漏量,但集中于基岩浅部,即600m标高以上;在石炭系威宁丰宁统灰岩段与基岩地下水水力联系弱;河水渗漏并非灌入式,仍以渗流或越流为主。
The surface water develops well in Maoping lead-zinc mine area,and Luoze River goes through the mining area from south to north.Under the influence of the long-term pit draining,the elevation of the bedrock water level is 20 ~ 145 meters lower than the water level of Luoze River.Luoze River is the suspension-type river.A series of field tests such as the dewatering test and the tracing test have been carried out to study the leakage properties of Luoze River.The study results indicate that the seepage of Luoze River mainly concentrates in the limestone section of the Permian Qixia and Maokou formation in the north of the mining area.There is a certain amount of leakage in shallow dolomite section of Devonian Zaige formation,and the developing height is above 600 meters of the sea level.The hydraulic link between Luoze Rive and the bedrock groundwater is weak in limestone section of Carboniferous System.The leakage of the river is not the filling type,which is mainly the seepage and leaky flow.
出处
《工程勘察》
2017年第5期28-31,78,共5页
Geotechnical Investigation & Surveying
关键词
悬挂式
地表河流
渗漏性
毛坪
铅锌矿
suspension type
surface river
leakage property
Maoping
lead-zinc mine
