山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
1期
164-166
,共3页
三软煤层%矿压监测%显现规律
三軟煤層%礦壓鑑測%顯現規律
삼연매층%광압감측%현현규률
three soft coal seam%mining pressure monitoring%regularity
深部“三软”不稳定煤层巷道围岩岩性软弱且围岩应力高，掘出后自稳时间短、来压快，巷道初始变形速度快。通过对巷道进行矿压监测，一方面可以及时预报巷道围岩险情，防止事故发生；另一方面可以掌握围岩力学形态的变化和显现规律，评价围岩和支护的稳定性、安全性，用以验证、修改支护参数。
深部“三軟”不穩定煤層巷道圍巖巖性軟弱且圍巖應力高，掘齣後自穩時間短、來壓快，巷道初始變形速度快。通過對巷道進行礦壓鑑測，一方麵可以及時預報巷道圍巖險情，防止事故髮生；另一方麵可以掌握圍巖力學形態的變化和顯現規律，評價圍巖和支護的穩定性、安全性，用以驗證、脩改支護參數。
심부“삼연”불은정매층항도위암암성연약차위암응력고，굴출후자은시간단、래압쾌，항도초시변형속도쾌。통과대항도진행광압감측，일방면가이급시예보항도위암험정，방지사고발생；령일방면가이장악위암역학형태적변화화현현규률，평개위암화지호적은정성、안전성，용이험증、수개지호삼수。
The strength of roadway surrounding rock being"three Soft"unstable coal is much weaker, and suffered the higher stress in deep, after exhumed, self-stabilizing time is short, pressure behavior is quick, initial deformation speed is fast. Through the mine pressure monitoring of roadway, a hand can timely forecast of the danger of the roadway surrounding rock, and prevent accidents; on the other hand can grasp the changes in morphology and regularity of rock mechanics, and evaluate the stability and the security of surrounding rock and support, to verify, and modify the support parameters.
