Meng Qingbin

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Gangue filling-grouting reinforcement deep well coalpillar-free gob-side entry retaining construction process
Release time:2023-11-10  Hits:

School Sign:第一单位
Disigner of the Invention:huangbingxiang,zhaochunxiao,puhai,yaoqiangling,王琦,chenyanlong,Lu Yinlong,JiangFeng LIU,yuliyuan,申世豹,王刚,juminghe,wujiangyu,haoyang
Type of Patent:国内
State of Patent:专利授权
Application Number:202110345324.9
Service Invention or Not:no
Application Date:2022-02-11
Publication Date:2022-03-11
Authorization Date:2023-08-18
First Author:Meng Qingbin

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