1) top-collapsing
放顶
1.
The distribution characteristics of initial rock stress in the tectonic stress type mine is analyzed first in the paper,and numerical simulating analysis is used to make analysis of the top-collapsing and failure forms of roof rocks at the western part of Chengchao Iron Mine,which could be theoretical basis to forecast and control the underground roof accidents.
本文首先分析了构造应力型矿山的地应力分布特点,然后对程潮铁矿西区深部开采中,放顶及开采对顶板围岩破坏形式进行了数值模拟,为矿山地压监测和顶板稳定防护提供了理论依据。
2.
Finite element method is used to make an analysis of the underground stress redistribution at the western part of Chengchao Iron Mine during top-collapsing process, and a theoretical basis has been provided to determine correct sequence of caving and forecast and control the underground stress.
采用有限单元法对程潮铁矿西区放顶过程中地压重新分布的规律进行分析,为矿山正确地确定回采顺序和对地压进行预测、管理提供了理论依据。
2) top-coal caving
放顶煤
1.
Discussion on support and design of the powered support for the top-coal caving of up-dip mining face;
放顶煤仰采工作面液压支架支护与设计探讨
2.
A study on top-coal caving technology in thick seams with fully mechanized face;
厚煤层综采放顶煤工艺研究初探
3) caving coal
放顶煤
1.
The application of waterinjection soften process of π type steel caving coal;
π型钢放顶煤煤体的水软化工艺技术的应用
2.
Computer simulation research on working results of fully mechanized caving coal face;
综采放顶煤工作面生产效果计算机模拟研究
3.
Practice on the technology of large tilt angle compound mining caving coal;
大倾角综采放顶煤技术的开采实践
4) Caving
[英]['keɪvɪŋ] [美]['kevɪŋ]
放顶煤
1.
Analysis on technological transformation from flooring support to caving support;
铺网支架改放顶煤支架技术浅析
2.
The case of accidents,the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures,must learn.
该文通过事故案例分析,提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施,有一定借鉴意义。
3.
ZF—4600 light caving supporter was tested successfuly in thick seem descending slicing face,whick supplied a new choice for the mining in similar face.
在厚煤层下分层回采工作面 ,使用ZF— 4 6 0 0轻型放顶煤支架及其配套设备 ,井下现场试验成功 ,为同类型工作面的设备选型和采煤方法提供了新的选择。
5) caving technology
放顶工艺
6) top coal caving
放顶煤
1.
The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.
研究表明:放顶煤开采、提高支架工作阻力可以减缓煤壁压力,煤体合理注水可以提高煤体黏聚力与抗剪强度,它们是防治极软煤层煤壁片帮的有效措施。
2.
5m thick and 21°～42° high inclination-angle,is mined with light top coal caving.
5m,煤岩层倾角21°~42°,属于大倾角煤层,采用轻型放顶煤技术开采。
3.
Having taken high inclined angle 31502 working face fully mechanized top coal caving in Zhang Ji Mine of Kangbao Mining Company as object of study,this paper analyzes the complicated situation the 31502 fully mechanized top coal caving face will face,having taken specific measures and management methods to guarantee mining safely,providing methods for future mining and accumulating experience.
以康保矿业公司张纪井31502工作面大倾角综采放顶煤为研究对象,分析了31502综采放顶煤工作面面临的复杂情况,采取了针对性措施及管理办法,保证了安全推采,为今后的采煤方法探明了路子、积累了经验。
补充资料：综采放顶煤
综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条