1) joint excavation and gas drainage
边抽边掘
1.
In view of during excavating the roadway in the low permeability outburst coal seam,the composite index of coal and gas outburst often went beyond and speed of excavation was very slow,the comprehensive outburst prevention technology with deep-hole pre-splitting-control blasting and joint excavation and gas drainage was put forward,and its mechanism was studied at length.
针对在低透气性突出煤层巷道掘进过程中,煤与瓦斯突出综合检测指标经常超限,掘进速度缓慢等问题,提出了深孔预裂控制爆破和巷帮钻孔边抽边掘相结合的综合防突技术,研究了深孔预裂控制爆破技术的作用机理,阐述了深孔预裂控制爆破技术的工艺流程和巷帮钻孔的布置参数。
4) grouting while tunneling
边掘边注
5) draining while mining
边采边抽
1.
It used draining while mining and light&middle pressure water injection in coal seam ,those completely eliminated the danger of coal and gas outburst.
2906工作面采前进行本煤层密集钻孔预抽,基本上消除了工作面的突出危险性;在生产过程中,采用边采边抽和浅孔中压注水措施,完全消除了工作面的突出危险性。
6) edge aetection
边缘抽取
补充资料：边寿民
| 边寿民（1684～1752） 中国清代画家。原名维祺，字寿民，后以字行，更字颐公，号苇间居士。山阳（今江苏淮安）人。出身贫寒，一生布衣，云游四方，常在扬州，以卖画为生，被列为扬州八怪之一。擅花鸟、蔬果、山水，尤精芦雁，有边芦雁之誉。所画芦雁，或泼墨写意，笔法潇洒，形象简括、生动；或淡墨勾勒，干笔皴擦，富有立体感，画面大片空白，形象突出。有《芦雁图》、《寒露落雁图》等传世。
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