矿冶工程
礦冶工程
광야공정
2014年
4期
30-33,38
,共5页
软岩%箕斗装载硐室%修复%数值模拟%变形
軟巖%箕鬥裝載硐室%脩複%數值模擬%變形
연암%기두장재동실%수복%수치모의%변형
soft rock%skip-loading pocket%restoring%numerical simulation%deformation
为了有效解决朔南矿区软岩箕斗装载硐室修复技术难度大的难题，以麻家梁煤矿箕斗装载硐室修复工程为背景，通过分析硐室破坏的原因，提出了硐室合理的修复方案，并基于广义Hoek-Brown强度准则获取岩体力学参数，采用数值模拟方法对硐室的修复方案进行分析，同时介绍了修复技术的施工工艺。现场工业性试验结果表明：矿用锚索受力为76．9～131．7 kN，周边位移为-1～1 mm，均趋于稳定。该硐室修复方案提高了围岩与加固结构的整体承载能力，有效地控制了软岩箕斗装载硐室围岩的变形。
為瞭有效解決朔南礦區軟巖箕鬥裝載硐室脩複技術難度大的難題，以痳傢樑煤礦箕鬥裝載硐室脩複工程為揹景，通過分析硐室破壞的原因，提齣瞭硐室閤理的脩複方案，併基于廣義Hoek-Brown彊度準則穫取巖體力學參數，採用數值模擬方法對硐室的脩複方案進行分析，同時介紹瞭脩複技術的施工工藝。現場工業性試驗結果錶明：礦用錨索受力為76．9～131．7 kN，週邊位移為-1～1 mm，均趨于穩定。該硐室脩複方案提高瞭圍巖與加固結構的整體承載能力，有效地控製瞭軟巖箕鬥裝載硐室圍巖的變形。
위료유효해결삭남광구연암기두장재동실수복기술난도대적난제，이마가량매광기두장재동실수복공정위배경，통과분석동실파배적원인，제출료동실합리적수복방안，병기우엄의Hoek-Brown강도준칙획취암체역학삼수，채용수치모의방법대동실적수복방안진행분석，동시개소료수복기술적시공공예。현장공업성시험결과표명：광용묘색수력위76．9～131．7 kN，주변위이위-1～1 mm，균추우은정。해동실수복방안제고료위암여가고결구적정체승재능력，유효지공제료연암기두장재동실위암적변형。
The skip-loading pocket in Majialiang Coal Mine was taken as an example for effectively solving technical difficulty in reinforcing soft rock skip-loading pocket in Shuonan mine area. After analyzing failure reasons for underground chambers, a scheme for restoring and reinforcing pockets was put forward, with the rock mechanical parameters obtained based on the generalized Hoek-Brown strength criterion. The whole restoring scheme was then analyzed by means of numerical simulation and the involved construction technology was briefly introduced. The on-site industrial test showed that the anchoring force of anchor on the mining area was 76.9~131.7 kN, with the surrounding rock displacement within the range of -1~1 mm, tending towards stability. It can be concluded that such restoring scheme, which has enhanced the integrated loading capacity of surrounding rock and the supporting structure, could effectively control the deformation of surrounding rock in the soft rock skip-loading pocket.
