云南冶金2026，Vol.55Issue(4)：24-29,6.
富水型地下磷矿山联络道涌水封闭墙构建与控排技术
Construction and Water-Blocking Bulkhead and Control-Drainage Technology for Water Inrush in Connecting Roadway of Water-rich Underground Phosphate Mine
摘要
Abstract
Water inrush hazards severely threaten the safe production of water-rich phosphate mines.Aiming at the sudden water inrush occurring in the crossheading of the 2 000 m level of an underground phosphate mine under conditions of high water pressure and fractured phosphate rock surrounding rock,a systematic treatment scheme integrating"water blocking via bulkhead+water drainage & regulation through diversion conduits+multi-stage drainage"was designed and implemented.The core technologies of this scheme are as follows:1)An inverted wedge flat C30 concrete bulkhead with a thickness of 1.5 m was constructed 5 m ahead of the water inrush point to block the main water flow channels;2)Seamless steel pipes with specifications of φ159 mm×4 mm×6 m were pre-embedded inside the wall and connected to high-pressure valves externally to realize precise regulation of water inflow rate;3)The existing underground reservoirs and multi-stage drainage facilities of the mine area were optimized and operated in linkage.Engineering practice results show that the system drainage capacity increased from 460 m3/h to 522 m3/h,the water inflow rate dropped from over 200 m3/h to 100 m3/h,the water pressure behind the sealing wall decreased to ≤0.3 MPa,and the efficiency of the drainage system rose from 88％to 95％.This scheme provides an engineering reference for water inrush control in underground mines with similar high water pressure and fractured surrounding rock conditions.关键词
地下矿山/涌水治理/封闭墙/导流控压/多级排水Key words
underground mine/water inrush control/bulkhead/diversion and pressure regulation/multi-stage drainage分类
矿业与冶金引用本文复制引用
王金华,高家凡,张佳男,曹得志,董健,朱德勇..富水型地下磷矿山联络道涌水封闭墙构建与控排技术[J].云南冶金,2026,55(4):24-29,6.基金项目
国家自然科学基金资助项目(52204160) （52204160）
中国博士后科学基金资助项目(2022MD713814) （2022MD713814）
