wood roof pin

Theoretical determination of bolt pre-tightening force on the bolt combined effect in the roof of mining roadway

回采巷道顶板锚杆组合作用下锚杆预紧力理论确定

Discrete Element Simulation Analysis on Bolt Support for Broken Structure Roof of Mining Gateway

回采巷道碎裂结构顶板锚杆支护离散元模拟分析

Application of compound arch-girder theory in bolting support in gateway roof

组合拱梁理论在回采巷道顶板锚杆支护中的应用

Discussin on Bolt and Cable Supporting Technique of the Comples Roof

复合顶板巷道锚杆锚索支护技术探讨

Application of supporting technology combination of anchor cable and bolt in friable roof support

锚索锚杆联合支护在破碎顶板中的应用

Pre-stressed Bolt Anchor-truss Support Technology in Composite Roof Roadway

复合顶板巷道预应力锚杆锚索桁架支护技术

Application on Bolting Support in Soft Compound Roof Tunnel

锚杆支护在松软复合顶板巷道中的应用

Bolting Feasibility Analysis of compound roof entry in WuFeng coal mine

五凤煤矿复合顶板巷道锚杆支护可行性分析

Weathering Weak Entry of Composite Roof Bolting Technology Research

软弱风化复合顶板巷道锚杆支护技术研究

Software development for bolting roadway roof separation monitoring system

锚杆支护巷道顶板离层监测系统软件的开发

Theory and Its Application Bolt and Cable Anchorage in Mining Roadway with Great Thick Complicated Roof Composed of Thin-bedded Strata;

薄层状巨厚复合顶板回采巷道锚杆锚索支护理论及应用研究

Deformation and Failure Mechanism and Bolting Technique Study on Dynamic Roadway of Composite Roof;

复合顶板动压巷道变形破坏机理与锚杆支护技术研究

Study on Laws of Surrounding Rock Stress Distribution and Roof-off-strata of the Gate Bolting Support;

煤巷锚杆支护围岩应力分布及顶板离层规律的研究

Study on the Comprehensive Technique about Surrounding Rock Control and Bolting of Coal Roadway with Broken Roof;

全煤巷破碎顶板围岩控制及锚杆支护配套技术研究

Safety Evaluation of Roof-bolt Coal Roadway Based on Fault Tree Analysis

基于事故树分析法的锚杆支护煤巷顶板安全评价

Application of Pre-stress Bolt Support Technology in Complex Roof Roadway in Deep Mine

深井复合顶板条件下预应力锚杆巷道支护技术应用

Test and Research on Support Technology with High Pre-stress Bolt Under Conditions of Compound Roofs

复合顶板条件下高预应力锚杆支护技术试验研究

Application and Research of Bolt Supports in Compound Roof of Large Section Roadway

锚杆组合支护在复合顶板大断面巷道的应用研究