机构

• 力学研究所 [2]
• 地质与地球物理研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [3]
• 期刊论文 [1]

发表日期

• 2020 [1]
• 2012 [1]
• 2011 [2]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Analysis of Hydro-fracturing Technique Using Ultra-deep Boreholes for Coal Mining with Hard Roofs: a Case Study 期刊论文  OAI收割 MINING METALLURGY & EXPLORATION, 2020, 页码: 14 作者:  Zheng, Jianwei;  Ju, Wenjun;  Sun, Xiaodong;  Jiang, Pengfei;  Zheng, Yangfa   |  收藏  |  浏览/下载：36/0  |  提交时间：2020/12/07 Ultra-deep borehole hydro-fracturing technique  Hard roof  Strata spatial structure  Stress arch  Fracturing-before-injecting   Numerical simulation of geostress and support of roadway crossing strata in complex stress condition 会议论文  OAI收割 2nd International Conference on Structures and Building Materials, ICSBM 2012, Hangzhou, China, MAR 09-11, 2012 作者:  Liu Y;  Liu Y;  Liu Y;  Liu Y;  Liu Y 收藏  |  浏览/下载：26/0  |  提交时间：2013/02/26 Building materials  Civil engineering  Coal deposits  Coal mines  Lie groups  Roof coverings  Coal seams  Complex stress  Complex stress condition  Geo-stress  Mining areas  Numerical simulation software  research methods  Roof structure detection  Roof structures  Stability Classification  Stress variations  Surrounding rock  Video detection  Working face  Zone charts   The structure design and analysis of predigest laser combine bind and extend bind flat roof (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011, July 29, 2011 - July 31, 2011, Sanya, China 作者:  Wang B.;  Wang H.;  Wang H.;  Wang H.;  Wang H. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 This paper put forward a kind of predigest laser combine bind and extend bind flat roof structure  which is founded as fission flat roof  and can be built in an little room 1280mm990mm815mm. This flat roof space location can be adjusted. This kind of seat can ensure the system complete laser combine and close as high precision. In this paper we designed the laser combine and close whole structure and install design. At last we did some finite statics analysis to some important parts. This design can ensure every laser fire directional adjust mete lower 30'  and the flat roof quality is 770kg. The transition benchmark flat roof system most meet and emergency is 0.005mm at the premise of bear the weight of turn flat laden. It can be seen that this structure can satisfy the request of many lasers small space laser extend bind and adjust. This kind can be extended to other light combine bind and extend bind structure design. (2011) Trans Tech Publications  Switzerland.   Study on the Structural System of Roof in Fully Mechanized Top Coal Caving 会议论文  OAI收割 International Conference on Civil Engineering and Transportation (ICCET 2011), Jinan, PEOPLES R CHINA, OCT 14-16, 2011 作者:  Shen J;  Meng D(孟达) 收藏  |  浏览/下载：23/0  |  提交时间：2012/09/25 Fully Mechanized Top-Coal Caving  Roof Structure  Structural System  Underground Mining