山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
10期
35-36
,共2页
沿空留巷%充填体%巷道变形%矿压观测
沿空留巷%充填體%巷道變形%礦壓觀測
연공류항%충전체%항도변형%광압관측
gob-side roadway%filling body%roadway deformation%ground pressure observation
为了掌握留巷在回采过程中巷道顶板的离层、墙体受力状况,需要对沿空留巷及综采采场进行矿压规律观测.观测结果表明:巷道完整,墙体稳定,顶板平均下沉241 mm,煤帮平均收敛111 mm,巷道变形率不到5%.
為瞭掌握留巷在迴採過程中巷道頂闆的離層、牆體受力狀況,需要對沿空留巷及綜採採場進行礦壓規律觀測.觀測結果錶明:巷道完整,牆體穩定,頂闆平均下沉241 mm,煤幫平均收斂111 mm,巷道變形率不到5%.
위료장악류항재회채과정중항도정판적리층、장체수력상황,수요대연공류항급종채채장진행광압규률관측.관측결과표명:항도완정,장체은정,정판평균하침241 mm,매방평균수렴111 mm,항도변형솔불도5%.
To master roadway roof separation and wall stress situation of entry retaining during in the process of mining, so it's need to monitor pressure law of gob-side entry retaining and fully mechanized stope. The observation shows that the roadway integrity, wall stability and roof average subsidence is 241mm, coal side average convergence is 111mm and roadway deformation rate is less than 5%.
