The specimen, complete with surrounding rock, had been on display for the past 50 years at a museum in Poland, but amazingly no one had spotted the footprint.
这个标本连同周围的岩石，在过去的50年里一直在波兰的一家博物馆陈列，但令人惊讶的是，从未有人发现这个脚印。
Their use made the design of roadway surrounding rock supporting safer.
这些结果的应用使巷道岩石支护的设计更趋于安全。
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 stability evaluation of surrounding rock is important base for tunnel retaining design.
隧洞围岩的稳定性评判是洞室支护设计的重要依据。
The finite element method is used to analyse the deformation and stress of surrounding rock.
采用有限元法对地下厂房开挖时围岩的变形和应力情况进行了分析。
As underground structure, cavern excavation will influence the stability of surrounding rock.
作为地下结构，调压井洞室开挖会对围岩稳定造成影响。
The stress distribution rule of surrounding rock is obtained and surrounding rock stability is analyzed.
据此，得出围岩的应力分布规律，进行围岩稳定性分析。
We analyzed the breakage mechanism and breakage type of surrounding rock from the view of rock mechanics.
从岩石力学的角度分析了采空区围岩的破坏机理与破坏类型。
The stress and deformation analysis for surrounding rock of tunnels is an important task in tunnels design.
隧道围岩应力和变形分析是隧道设计的重要内容。
Finally, creep failure mechanism of surrounding rock in deep mining is analyzed by stress difference theory.
并利用应力差理论分析了深部巷道围岩的蠕变破坏机理。
Stress concentration caused by chamber's excavation engenders tensile and compressive stress to surrounding rock.
洞室开挖会使围岩周边产生应力集中，产生拉应力与压应力。
The structure and permeability of rock determine directly the stability and security of buildings surrounding rock.
岩体的结构及其透水性直接关系到建筑物围岩的稳定及安全。
The large span large section of the roadway surrounding rock stability analysis supporting the proposed overall idea.
通过对大断面大跨度巷道围岩稳定性的分析，提出了支护的总体思路。
In situ stress is one of the basic parameters for the stability of surrounding rock and design of support structures.
初始地应力是地下工程围岩稳定与支护结构设计的一个基本参数。
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。
A new method for analyzing the time-dependent convergence deformation of the underground surrounding rock is presented.
研究了地下洞室围岩的时间效应变形特性，提出了分析围岩时间效应收敛变形的一种新方法。
With mining tunnel as the studied object, the stability of surrounding rock and its supporting design are studied in the paper.
本文以矿山回采巷道为主要研究对象，对巷道围岩的稳定性及其支护设计进行了研究。
NATM in the underground powerhouse project involves surrounding rock deformation monitoring and back analysis of observed data.
在地下厂房工程中新奥法的实施贯穿了围岩变形监测和监测资料的反馈分析。
Underground structures, being confined by the surrounding rock or soil, have long been assumed to have good anti-seismic ability.
地下结构由于受到周围岩体或土体的约束，一直被认为具有良好的抗震性能。
Salt has lower density than the surrounding rock, so it tends to flow upwards, pushing up the overlying layers of rock to form a dome.
盐的密度低于周围的岩石，所以会向上抬升，使覆盖其上的岩层形成穹顶状。
Analysis models of displacement prediction and stabilization forecast of surrounding rock of highway tunnel excavation are established.
建立了新的隧道工程开挖围岩位移预测和稳定性预报模型及其分析方法。
Based on the method of risk assessment, the fuzzy analysis is introduced to establish the classification of surrounding rock stability.
在风险评价方法的基础上，结合模糊理论，提出了围岩稳定性的风险评价分级方法。
During the excavation of underground chamber in the soft rock, lining thickness are increased to keep the stability of surrounding rock.
在软弱岩体中进行地下洞室开挖时，通常采用加大衬砌厚度来维持围岩的稳定。
Systematic rock bolt support and shotcrete were carried out for the surrounding rock and reinforcement was done locally for rock stability.
对围岩采用系统喷锚支护，局部作加强处理，稳定性良好。
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。
Many dynamic disturbances often lead to local instability of roadway surrounding rock and mining workplace and result in rock burst in coal mining.
煤矿生产中存在着大量的动力扰动，常导致采矿巷道和采场围岩局部失稳，诱发冲击矿压发生。
Theoretical analysis shows that the progressive failure of the surrounding rock of opening is mainly caused by strength attenuation and creep mass.
理论分析说明，巷道围岩的渐进破坏主要是岩体强度衰减和蠕变性质影响的结果。
The subject involves the deformation of surrounding rock, the reaction of support, coupled action of surrounding rock and initial support and so on.
该课题涉及到围岩的变形、支护结构的反应以及围岩和支护结构的耦合作用等。
The subject involves the deformation of surrounding rock, the reaction of support, coupled action of surrounding rock and initial support and so on.
该课题涉及到围岩的变形、支护结构的反应以及围岩和支护结构的耦合作用等。
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