滇中引水工程龙树隧洞出口段开挖对平诺村岩溶大泉影响评价  

EVALUATION OF THE IMPACT OF LONGSHU TUNNEL EXCAVATION ON PINGNUOCUN KARST SPRING

作　　者：陈兴聪 CHEN Xing-cong(Yunnan Institute of Water Resources and Hydropower Survey and design,Kunming 650021,China)

机构地区：[1]云南省水利水电勘测设计研究院,昆明650021

出　　处：《地质灾害与环境保护》2024年第4期73-77,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：滇中引水工程龙树隧洞出口段西南1.3 km平诺村附近,出露岩溶大泉W614,该泉为云龙山矿泉水厂及平诺村水源,因隧洞穿过W614地下水径流补给区,分析隧洞施工对平诺村泉影响具有重要现实意义。通过分析研究地下水补给、径流、排泄特征提出针对性的补救措施,减少地下水环境影响。本文从岩溶水文地质角度出发,分析了W614泉的构造成因,并估算出其径流区地下水补给量及隧洞开挖涌水量,通过地下水量平衡分析施工对平诺村泉影响,得出龙树隧洞开挖后平诺村泉(W614)疏干可能性不大,但会造成平诺村泉减流的初步判断。Near Pingnuo village, 1.3 km southwest of Longshu Tunnel exit section in central Yunnan, there is a Karst Spring W614, which is the water source of Yunlongshan mineral water plant and Pingnuo village, by analyzing the characteristics of groundwater recharge, runoff and discharge, the paper puts forward the corresponding remedial measures to reduce the influence of groundwater environment. In this paper, from the viewpoint of karst hydrogeology, the structural cause of W614 Spring is analyzed, and the groundwater recharge and tunnel excavation discharge in its runoff area are estimated, it is concluded that after Longshu Tunnel excavation, the drainage of Pingnuo village spring(W614) is unlikely, but it will result in the primary judgment of Pingnuo village spring flow reduction.

关 键 词：岩溶含水系统 控水构造 地下水环境影响 减流 疏干 补救措施 

分 类 号：P642[天文地球—工程地质学] TV67[天文地球—地质矿产勘探]