It is verified that roof bolt broken problem may be solved with new type's thick tail bolt.
证明了新型粗尾锚杆可以解决顶板锚杆破断问题。
The paper makes an analysis of the stresses on split-set roof bolt, and gives results of in-situ tests.
本文对管缝式锚杆进行了受力分析，并介绍了现场试验研究结果。
There are many kinds of strata in roof bolt hole. Proper using and choosing are available for increasing comprehensive benefit.
锚杆钻孔所遇岩层种类较多，合理地选择锚杆钻头类型有利于提高综合效益。
Inclined combined beam model with roof bolted are presented and solved, the expressions of support parameters of bolt are derived.
建立大倾角煤层回采巷道锚杆支护的倾斜组合梁模型，并进行解算，给出锚杆支护参数的表达式。
The paper discussed the other parts in the high strength roof bolt support system, including the resin, combined parts and anchor.
论述了高强度锚杆支护系统中的其它构件，包括树脂锚固剂、组合构件和锚索。
When constructing on super section lane, combining roof bolt, anchor cable, anchor cable series, is scientific and reasonable, can achieve good effect.
超大断面巷道施工，采用锚杆、锚索、锚索组联合支护，科学合理，实现了安全高效的良好效果。
With material mechanics theory, expounded bolt tail subjected to no center load action and roof bolt broken mechanism while roadway was supported with bolts.
应用材料力学理论，阐明了锚杆支护时锚尾一定受到偏心载荷作用和顶板锚杆破断的机理。
The utility model discloses a roof bolt disassembling machine, including an air leg part, a pneumatic wrench and a sleeve, the lower end of the pneumatic wrench is provided with a flange;
本实用新型公开了一种顶板锚杆拆卸机，包括有气腿部件、气动扳手和套筒，所 述气动扳手下端设有法兰盘；
So that the roof micro-deformed monitoring can be equipped on the roof bolt conveniently and which is more prior in terms of detecting density, cycle and precision in comparison with others'.
顶板微变形仪可以方便的安装在顶板锚杆上，方便操作，具有监测密度大、周期短、精度高等其它仪器不能相比的优点。
A mathematical model of a metal detector is established based on the principles of eddy current detection, which provide a theoretical criterion for selection of parameters of roof bolt detector.
依据电涡流式探测原理，建立了金属探测的数学模型，为锚杆探测仪参数的选择提供了理论依据。
In this paper, the authors introduce the kinds and characteristics of roof bolt diamond bits, and using and choosing methods. They put forward points for attention of using roof bolt diamond bits.
本文介绍了金刚石锚杆钻头的类型、特点及选择方法，并给出了使用金刚石锚杆钻头的注意事项。
Thes detecting structure instrument of the roof rock is integrated in the pneumatic bolt drill and data processing is adopted BP algorithm of mature net to identify the structure.
其中，顶板岩层结构探测仪是集成在风动锚杆钻机上，数据处理采用训练成熟的BP算法神经网络进行结构的识别；
The paper introduced the principle and methods of supporting combined the slit wedge bolt in small diameter with steel reinforcement in roadway with compound roof, and obtained economic effects.
介绍了回采巷道复合顶板条件下采用小直径管缝式锚杆加钢筋梯式组合网支护的原理、方法和取得的经济效果。
Homeproductseven roof flat roof fully use internal wall panel and ones own intensity of the roof boarding, through draw nail, bolt, connection nailed to make.
是通过充分利用夹芯墙板及屋面板的自身强度，经过拉钉螺栓自攻钉的连接而组成的定型活动房屋系统。
Discrete element method is used to analyze the roof stability in accordance with the variation of its loading, rock frictional Angle, bolt spacing, rock properties and bolt orientation.
采用离散单元法，分析了当荷载、岩体的摩擦角、锚杆间距、锚杆方向和岩体的性质变化时，顶板的稳定性。
In slicing seams, bolt supporting was utilized under false roof and obtained good result.
介绍在分层开采煤层中，在假顶条件下实现锚杆支护。
Forward support bolt combined with roop rock by bolting can play a roll of combined beam, which can prevent roof rock caving immediately after explosion.
超前支护锚杆锚固后与顶板岩石构成一体，这样使超前锚杆形成组合梁作用，放炮后，能够阻止顶板岩石冒落。
The paper provided the optimum roof support parameters of bolt support in soft thick seam. The applied projects have shown the efficiency of the support.
给出了锚杆(索)支护软厚煤顶板的优化支护参数，工程应用证实了其有效性。
This paper analysed the cause of falling roof, raised some methods of roof management, such as adjusting mineral blast, bolt support and prediction of roof caving. It ensured safety in mining.
本文分析了顶板冒落的原因，提出了顶板管理方法，如调整落矿工艺，顶板锚网支护和冒顶预测预报，结果保证了采矿的安全。
Analyzed the problem that exist in suspension roof support, and presented the new type strong steel big-end bolt can solve this problem.
分析了普通金属锚杆存在的问题，并提出新型金属粗尾锚杆可以很好地解决这方面存在的问题。
By computer simulation, we analysis and study the law of wall rock stress distribution, deformation, the axial force of bolt and the roof-off-strata.
通过计算机数值模拟分析研究了锚杆支护回采巷道围岩应力分布、围岩变形、锚杆轴力及顶板离层规律。
In the second step, the prestressed cable is used as reinforced support to the roof plate, and the reinforcement by bolting and grouting with inside grouting bolt is applied to base Angle.
然后再采用预应力锚索对顶板进行加强支护，且对巷道底角采用内注浆锚杆进行锚注加固。
This paper introduces the construction process, common problems and measures of rock roof-bolt.
本文简要介绍了岩石锚杆基础的施工工序、常见问题和对策等。
The project application cases showed that the gob-side entry retaining with bolt support could effectively cut the side roof of the gob-sides and reduce the loading of the support devices.
工程应用表明，锚杆支护巷道沿空留巷，有效切落了采空区侧顶板，减小了巷旁支护体载荷；
The parameters of suspension roof support were determined based on hanging action with a bolt-wire or cable truss.
应用锚杆兜吊和锚索悬吊两种作用设计了锚杆支护参数。
The paper introduces an adjustable compounding light-duty emulsion pump station used for temporary fore support at the roof-bolt face of underground heading roadway.
本文介绍煤矿井下掘进巷道锚杆支护工作面用于临时超前支护的一种可调配比式轻型乳化液泵站。
Practice showed that high pre-stress anchored bolt with high strength was effective method for controlling deformation of deep coal roadway with combined roof above gob.
实践证明，高预应力高强锚杆组合的围岩强化控制技术是控制深井厚复合顶板采空区上方煤巷围岩变形的有效方法。
The roof separation layer is the biggest security hidden danger in bolt support tunnel.
顶板离层是锚杆支护巷道最大的安全隐患之一。
A roof fall accident that was caused by bolt support is analyzed. The influence of the lane fault to bolt (cable) is pointed out. It has a certain reference for support selection of the same lanes.
对锚杆支护引起的一起冒顶事故进行了分析，指出了顺巷断层对锚杆(索)支护的影响，对同类巷道的支护选择具有一定的借鉴意义。
Brittle fracture accident and countermeasure of the high-strength bolt of post junction of roof beam of.
钢结构梁柱连接处高强螺栓的脆性断裂事故及对策。
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