Analysis on the anchor mechanism of the full length resin bolt

来源 :煤炭学报(英文版) | 被引量 : 0次 | 上传用户:luorui2008
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The purpose of this paper is to reveal the stress distribution characteristic along the full length anchor bolt. Based on the mechanic model set up, the author calculated the anchor mechanism of the full length resin rock-bolt. The stress distribution characteristic is different according to different type of surrounding-rock. The conclusion is important to optimize the roadway bolt support design.
其他文献
Factors that influence enterprise resource planning(ERP) implementation in enterprises were described, and according to their interaction with each other, these factors were qualitatively processed by using interpretative structural model(ISM)method, and
On the basis of analysis of the present roofbolter\'s structures, the pneumatic vane motor roofbolter was proposed and researched. Structure principle of MFT-80Y type pneumatic vane motor roofbolter was expounded, a new project of the rotary shearing me
Analyzed the main problems which were found in current conditions and prob-lems of informationization in coal enterprises. It clarified how to achieve informationizationin coal mine and put forward a general configuration of informationization constructio
To enhance the technology and efficiency of strata injection is a problem to be solved urgently. Because of effected by the rough and poor production conditions of mining and the changeable bearing condition of strata, the technological process of injecti
During mining or road-way development, the distribution of stress and coal pore pressure in the coal face and rib around the new opening will change, under certain conditions, dynamic failure of coal in the form of an outburst can occur. In the modeling s
Rock drillability reflects the drill bit fragments rock hardly or easily. At present, rock drillability classification indexes have rock single-axle compressive strength, point load intensity,fracture stress during chiseling, drill speed, chiseling specif
The numerical model was presented for the coal combustion in the packed bed.The bifurcation characteristic of the ignition-extinction of solid-phase smoldering and transition to flaming was studied for the packed bed of coal. One of the Frank-Kamenetskii
The flame propagation of methane-air mixture with various methane concentrations was experimentally investigated at venting flame acceleration tube with quadrate cross section under different obstacles presented. The flame shape and propagation speed was
Based on the systematical analysis influence factors of coal and gas outburst,the main factors and their magnitude was determined by the corresponding methods. With the research region divided into finite predicting units, the internal relation between th
The physical,chemical and mineral facies properties of the flyash from Xiezhuang Coal Refuse-Fired Power Plant have been studied by means of naked eyes,microscope,chemical composition analysis and XRD analysis,and compared with that of the flyash from Tai