In this paper, a comprehensive model for the behaviour of jointed rock masses reinforced by passive, fully-grouted rock bolts is presented.
在本文中，被动的，充分灌浆锚杆加固的一个综合模型的裂隙岩体的行为。
If the rock bolts or anti-slide piles are just adopted without cutting-slope unloading in the treatment, the treatment will be very expensive.
经计算分析，如果仅采用抗滑桩或锚杆进行加固，其工程量大、成本高，因此提出以削坡减载为主的初步治理方案。
Threaded rock bolts shall be provided with rolled threads of min. 150 mm length of the same corrosion protection or better than the bolt itself.
螺纹岩石锚杆应具有滚压螺纹，最小防腐蚀保护长度150mm，或者比锚杆本身要好；
The declining and the function-losing, damage and softening, are the mechanical characteristics of rock bolts in roadways with large deformation.
论述了锚杆阻力下降和失效是大变形巷道锚杆支护所具有的基本规律。
The model is based on an "equivalent material" approach in which the influence of rock joints as well as rock bolts is distributed throughout the rock mass.
该模型是基于“等效材料”的方法，其中分布在整个岩体的岩石节理以及锚杆的影响。
In addition, the numerical simulation of rock bolts to the reinforcement of rock slope in DDA shows an effective role in promoting the stability of rock slope.
另外，DDA方法关于边坡锚固模拟计算，充分反映和验证了锚杆在边坡稳定性加固处理中的效果。
The second support structure with high stiffness appears in this range. The whole strength and stability in the anchoring range of rock bolts is enhanced greatly.
因此，对锚杆支护系统的刚度要求较高，特别是锚杆预紧力起着决定性作用。
The domestic and overseas research status of nondestructive detecting in rock bolts are discussed from the aspects of excitation signal and information processing technology.
从激励信号和信息处理技术两方面，分析了锚杆无损检测的国内外研究现状。
From the above analysis, it is shown that under the condition of steel arch support, the support effect of systematic rock bolts in loess tunnel is not obvious, which can be ignored.
综合以上分析表明，在黄土隧道中，钢架支护条件下的系统锚杆支护效果不明显，可以取消。
The quality of the rock bolts is of great importance and has been paid a lot of attention to. Sonic wave techniques are currently the leading methods used for evaluating the condition of rock bolts.
声波检测技术是目前主要的锚杆锚固质量无损检测手段，本文通过对我国锚杆锚固质量声波检测技术的历史回顾和现状分析，指出其理论研究工作的严重欠缺是当前存在的主要问题。
Climbing specialists "Sweeny" Sewell and Howard Clarke here work on anchoring bolts to the slippery, porous rock to support the weight of climbers using ropes.
攀爬专家“萎肩”西威尔和霍华德·克拉克在这光滑渗水的岩石上打螺栓，以便用绳索攀爬时承受体重。
Because of the passivity action of systematic bolts and the heterogeneity of rock mass deforming, systematic bolts have different stress in different position.
由于系统锚杆作用的被动性和边坡岩体变形的非均匀性，使得不同位置的锚件的应力出现较大的差别。
This paper presents an analysis method for the acting mechanism of bolts in soft rock. The mechanical behaviors of rock bolting system and bolt itself are discussed respectively.
对软岩中锚杆的作用机理提出了一种分析方法，分别讨论了锚杆体系和锚杆本身的力学行为。
Features of ground pressure and the applocable supporting pattern of soft rock are studied. Several new-type simple and easy bolts are also designed to support the soft rock.
剖析了软弱岩层的地区特点，探讨了该种岩层对支护的特殊要求，在此基础上介绍了几种简单易行的新型锚杆。
The testing methods on extension of anchor bolt are introduced. The whole deformations of normal bolts under pretensioning and its effect on the jacking of surrounding rock are pointed out.
通过对锚杆延伸性能测试方法的介绍，计算出了几种常用锚杆在预紧加固条件下的整体变形量，并结合井下实用情况指出不同性能锚杆对围岩加固的影响。
The bolting design of large deformation surrounding rock usually depends on experience, one of the main reasons is the bearing capacity of bolts.
大变形围岩的锚杆支护设计一般还是采用经验类比法，主要原因之一是不能合理确定锚杆的承载能力。
Research results indicate that bolt grouting support improves the effect of support for soft rock roadways and enlarges the range of bolts application.
研究表明，锚注支护利用锚杆与注浆相结合的方法，极大地提高了软岩巷道的支护效果，扩大了锚杆的使用范围。
The obtained results are shown that the anchor bolts supports in the fissured rock mass is good to raise the safety of the whole structure of grottoes.
结果表明，锚杆的加固作用是明显的，在有裂隙的部位打入锚杆对石窟整体结构的安全性是有益处的。
The improved rock mass parameters have been applied to the support action analysis of tensioned and grouted bolts by using the existing analytical solutions.
这些结果可直接应用于围岩—支护相互作用分析的已有解析解中，并通过控制围岩边界位移量进行锚杆支护参数设计。
The achievement is valuable to the design of roadways cable bolts supporting parameters and the evaluation of reinforced rock masses' safety.
研究结果对定量评价巷道锚索支护的安全性以及合理设计树脂锚索的支护参数具有重要意义。
The further excavation of underground powerhouse will affect the stress distribution of system bolts and rock mass near crane girder.
地下厂房的继续开挖对于吊车梁系统锚杆和周围岩体的应力分布有较大影响。
The load losses of the cable bolts are produced by the deformation of rock mass depending on time, corrosion and different kinds of structures etc.
岩体随时间产生的变形、锚索松驰、腐蚀、结构的不同等因素都将造成锚索预应力损失。
Many breakings in anchor bolts and cables in tunnel of deep soft rock were one of problems faced by roadway supporting.
深部软岩巷道中大面积锚杆、锚索破断现象是巷道支护面临的一个难题。
The results show that bolts can offer both stress constraint and displacement constraint to rock mass, and provide a basis for support design and stability...
揭示了锚杆对岩体提供应力和位移约束机理。从而为深部不稳定巷道的支护设计与稳定性分析提供了依据。
The rebar bolts reinforcement improves the confining pressure near excavation and suppresses the large shear dilatation of rock mass.
螺纹钢螺栓加固附近挖掘和提高了围压，抑制大剪胀岩体。
Sport climbing started in the1970 s when French rock climbers began1) drilling bolts into rock walls to make them safer to climb .
运动攀岩发源于一九七○代，当时法国攀岩者开始在岩壁上钻入耳片，增加攀岩的安全性。
Sport climbing started in the1970 s when French rock climbers began1) drilling bolts into rock walls to make them safer to climb .
运动攀岩发源于一九七○代，当时法国攀岩者开始在岩壁上钻入耳片，增加攀岩的安全性。
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