山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
6期
7-9
,共3页
浅埋煤层%矿压观测%支架阻力%应力分布
淺埋煤層%礦壓觀測%支架阻力%應力分佈
천매매층%광압관측%지가조력%응력분포
shallow seam%mine pressure observation%support resistance%stress distribution
为掌握浅埋煤层大采高工作面开采矿压显现特征，针对鄂尔多斯地区某矿222205工作面矿压观测为项目背景，分析工作面矿压显现规律与煤体内应力分布特征。研究表明：工作面初次来压步距为13.75m，周期来压步距为在8.5m~17.5m之间。该工作面初次来压期间工作面动载现象明显；支架日常工作阻力基本呈正态分布，支架受力状态较为理想。煤体内支承压力分布受采动影响较显著。
為掌握淺埋煤層大採高工作麵開採礦壓顯現特徵，針對鄂爾多斯地區某礦222205工作麵礦壓觀測為項目揹景，分析工作麵礦壓顯現規律與煤體內應力分佈特徵。研究錶明：工作麵初次來壓步距為13.75m，週期來壓步距為在8.5m~17.5m之間。該工作麵初次來壓期間工作麵動載現象明顯；支架日常工作阻力基本呈正態分佈，支架受力狀態較為理想。煤體內支承壓力分佈受採動影響較顯著。
위장악천매매층대채고공작면개채광압현현특정，침대악이다사지구모광222205공작면광압관측위항목배경，분석공작면광압현현규률여매체내응력분포특정。연구표명：공작면초차래압보거위13.75m，주기래압보거위재8.5m~17.5m지간。해공작면초차래압기간공작면동재현상명현；지가일상공작조력기본정정태분포，지가수력상태교위이상。매체내지승압력분포수채동영향교현저。
Based on mineral pressure observation of 222205 working face in in the Erdos area coal mine, this paper analyzes emphatically about the loading distribution of the powered support and The characteristics of stress distribution in coal to master the characteristics of the ground pressure in the high-cutting and shallow depth coal seam. Research shows that first roof pressure distance was 13.75m and the periodical pressurized distance was 8.5m to 17.5m. Dynamic load phenomenon is violent during the ifrst weighting of mining face. The distribution of hydraulic support daily working resistance was basically in normal,and the stress state of supports would likely be ideal. The distribution of supporting pressure is affected by mining inlfuence signiifcantly.
