surrounding rock

Surrounding rock quality classification is one of the professional key works in tunneling and underground engineering.

围岩质量分类是隧道及地下工程领域重要的技术工作之一.

The construction of Tianchi Railway Tunnel features the rapid construction with self-developed complete sets of equipment for single-track tunnel and the excavation of soft surrounding rock section by adding an access tunnel.

天池隧道施工有两个特点，一是施工中运用了自行开发的铁路单线隧道配套设备进行施工；

The stability analysis of supporting structure of tunnel surrounding rock is an extremely important study of the safe construction of tunnel.

隧道围岩-支护结构稳定性分析是公路隧道安全施工的一项极为重要的研究内容。

In this paper, a temperature stress integral formula for the linings and surrounding rock of hydraulic pressure tunnels has been developed accurately by the elastic-contact theory on the basis of mechanics of elasticity.

本文还应用弹性力学中的弹性接触理论，严密地导得了水工有压隧洞衬砌和围岩的温度应力积分表达式。

The use of fractal theory analysis of the roadway surrounding rock fissures inherent law of development, summed up loose ring thickness range for the roadway to provide reliable parameters for the stability and basis.

运用分形理论分析研究了巷道围岩裂隙发展的内在规律，总结出松动圈的厚度范围，为巷道支护稳定提供可靠的参数和依据。

Initial geostress field and surrounding rock secondary stress field plays a vital role of construction of tunnel.

初始地应力场及围岩二次应力场对隧道施工起着至关重要的作用。

Influence of long-term draining groundwater in karst tunnel on permeability of its surrounding rock

岩溶隧道长期排水对围岩渗透性的影响

Statistical analysis on time effects and evaluation lndex of deformation stability to NATM surrounding rock deformation

NATM公路隧道围岩时间效应统计分析与变形稳定性评价指标

The compound support consisting of side and bottom bolting and bottom-hole destress blasting in the rise side floor of roadway can efficiently control the floor heaves of roadway so as to stabilize its surrounding rock.

采用帮底锚杆并在巷道上帮底角孔底爆破卸压的复合支护，可以有效地控制巷道的底鼓，达到巷道围岩的稳定。

In view of the lining concrete engineering of Xiluodu hydropower station, 3-dimensional finite element method is used to analyze thermal stress sensitivity of the surrounding rock deformation modulus.

针对溪洛渡水电站导流洞衬砌混凝土工程，采用三维有限元法分析了围岩变形模量变化对温度应力影响的敏感性。

Anchor concreting is an effective support technique to control surrounding rock deformation and keep tunnel stability.

锚杆注浆是一种行之有效的控制围岩变形和保证巷道稳定的支护技术.

Numerical Simulation of Surrounding Rock Control and Temporary Supporting Technology for Large Junction

大断面交岔点围岩控制及临时支护技术模拟研究

The study results have important engineering significance for the construction of tunnel with weak surrounding rock.

研究成果对软弱围岩隧道修建具有一定指导意义。

By means of numerical simulation and in-situ test, this article research on distribution rule of surrounding rock pressure and contact pressure and safety evaluation and design optimization of secondary linings.

本文通过现场试验并结合数值模拟研究的方法，对围岩压力和接触压力的分布规律以及二次衬砌安全性评价和优化设计作了初探。

The influence of blasting vibration on existed adjacent underground chambers or surrounding rock mass of the tunnel under excavating is inevitable if the method of blasting is employed for excavation.

由于地下洞室主要采用钻爆法施工，不可避免地存在爆破开挖对邻近已开挖洞室和开挖洞室本身的影响问题。

The surrounding rock of roadway is a kind of complex geologic body showing the mechanics characteristic of elasticity, elasto-plastic, visco-plastic and so on.

巷道围岩是一种复杂地质体，表现出弹性、弹塑性、粘弹性、粘塑性等多种力学特性。

Water evaporation in the airway has great influence on temperature distribution of the surrounding rock, strata heat release, and hence the humidity and temperature of airflow.

巷道中水分蒸发的处理对围岩温度分布、围岩散热、井下风流的温度和湿度的计算有重要的影响。

Research on surrounding rock evaluation of underground engineering based on extension method

基于可拓方法的地下工程围岩评价研究

It was shown that the surrounding rock of the tunnel constructed by double side-wall heading excavation method would unavoidably be damaged in a certain degree because of repeating blasting, especially the interlaid rock wall in tunnel groups with closely-spaced.

研究表明：推进式往复爆破作业的双侧壁导坑法开挖的隧道必然导致围岩产生一定程度的损伤、破坏，尤其是小净距隧道间的中夹岩岩墙。

Key construction technique mainly includes maintaining cavern stability, protecting surrounding rock integrity and guaranteeing concrete backfill quality.

关键施工技术主要体现于维护施工期洞室稳定，保护围岩完整性和保证结构混凝土回填质量三方面。

Managed pressure drilling applied to horizontal wells targeting carbonate gas reservoirs in middle Tarim Basin Analysis of instability characteristics of surrounding rock within horizontal section caving face in steep coal seam

塔中地区碳酸盐岩储层控压钻水平井技术急斜煤层水平分段综放开采围岩失稳特征分析

Study on deformation monitoring on surrounding rock of roadway in Xinglong Gypsum Mine

邢隆石膏矿巷道变形监测研究

The surrounding rock of roadways in soft coal seam has low strength and bad stability.

软煤巷道围岩强度低,稳定性差.

Direct to the shortage existing in the classification of surrounding rock stability, provide a new method.

针对目前围岩稳定性分类方法存在的不足, 给出一新的分类法.

The distribution patterns of mechanical characteristics for surrounding rock in the gateways of fully mechanized top-coal caving ( FMTC) face were put forward by analyzing deep displacement, surface displacement, stress distribution and supports loading.

通过对综放面回采巷道围岩的深部位移、表面位移、应力分布以及支架荷载的实测分析，得出综放面回采巷道围岩力学特征分布规律。

The Test Study of the Surrounding Rock Pressure Acting on the Composite Lining in Weak Rock of Nanling Double Track Railway Tunnel

南岭双线铁路隧道软岩复合式衬砌围岩压力的试验研究

If the volcano becomes inactive and cools, surrounding rock may be worn away.

如果火山变得不活动并冷却下来, 围岩就可能被剥蚀掉.

The surrounding rock of the cave consists of thick-layer limestone, dolomite and a little shale.

电站地下洞室围岩以厚层灰岩 、 白云岩为主,夹少量页岩.

A general program using APDL ( ANSYS parametric design language), which is applicable to arbitrary lining sections of the three-centered circular arch with different surrounding rock pressure distributions, was developed for the calculation of the tunnel inner forces and eccentricities.

利用ANSYS的参数化高级设计语言，编制了适合任意三心圆拱衬砌断面和不同围岩压力分布形式的隧道衬砌内力和偏心距的通用计算程序。

It considered that the floor heave gob was the principal character of surrounding rock distortion.

得出底鼓是该类型巷道围岩变形的主要特征.