More and more existing underground structures are starting to age.
更多和更多的既有地下构筑物开始老化了。
Middle column of large underground structures is the weak link in seism.
大跨度地下结构中柱是抗震薄弱环节。
More and more underground structures are built in the densely built areas.
更多的地下构筑物建造在建筑物密集的地区。
In most plants, a wide variety of metals are used in underground structures.
在许多工厂内，使用各种各样金属的地下结构。
The antiseismic research of underground structures is very important in earthquake engineering.
地下结构抗震研究是当今地震工程界重要的研究方向。
It is in the construction of underground structures that bolting has had its greatest application.
介绍在地下结构的建筑闩上它才有最巨大的应用。
Lastly, the stress analyses of geometrically altered and not altered underground structures are compared.
最后，将地下衬砌的变几何与不变几何的应力分析结果作了比较。
The harm of underground water to underground structures is the most serious one in all the troubles involved.
在地下结构的诸种病害中，地下水的危害最为严重。
The influence of the initial static stresses on dynamic responses of tunnels and underground structures is studied.
分析了静应力场对隧道及地下结构动力响应产生的影响。
The dynamic structural behaviour and basic analysis method for aseismic design of underground structures are studied.
本文分析论述了地下结构的抗震特性，抗震分析的基本方法。
This paper presents the response displacement method for seismic response analysis of slender underground structures.
文章根据细长地下结构的地震响应特点和实例，对响应位移法进行了探讨。
The method used in this paper to analyze rigid foundations can also be used to flexible foundations and underground structures.
本文研究刚性基础动力特性的方法还可用于柔性基础以及地下结构的动力分析。
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。
In this paper the principles and main functions of the integrated software for FEA on underground structures (UFEM system) are introduced.
本文介绍了地下结构有限元集成化软件(UFEM系统)的编制原理和主要功能。
Compared with structures on the ground, the seismic deformation of underground structures is smaller, while inner force response is larger.
与地上框架结构相比，地下结构的地震变形反应相对较小，但内力反应很大。
It was shown that the shield driving exerted a limited effect on the underground structures, the "excursion" of existing tunnel did not occur.
研究结果表明，盾构掘进对地下结构周围土体扰动有限，不会产生隧道整体漂移。
The present research enriches the theory of construction mechanics of underground structures and has wide application prospects in engineering.
研究成果丰富了地下工程施工力学理论，可应用于工程实践。
Further research will provide a theoretical and experimental basis for the design of underground structures through the liquefaction soil layer.
研究成果为地下结构穿越液化土层设计提供理论及试验基础。
Researching results will provide a theoretical and experimental basis for the dynamic analysis of underground structures in liquefied soil layer.
研究成果为液化场地下结构动力分析提供理论及试验基础。
Rock structure is one of main factors influencing stability problem of dam foundation, dam shoulder, underground structures and slope engineering.
在大型水电工程中，岩体结构是控制坝基坝肩、地下结构和边坡工程等稳定的主要因素之一。
Before that, geological survey must be made to explore the underground structures so as to determine the safety of ocean engineering in these areas.
在施工前，为确保工程安全，必须查明地下地质情况，因而要进行前期地质调查工作。
The production technology and technical parameters of the epoxy modified moisture cured polyurethane paint for underground structures were described.
论述了地下建筑用环氧树脂改性湿固化聚氨酯漆的生产工艺和技术参数的确定。
The proposed methodology affords a novel route for the reliability assessment of underground structures when the uncertain information is unavailable or scarce.
稳健性方法为不易得到不确定性因素足够信息的地下结构可靠性分析开辟了一条新途径。
Due to the characteristics of special underground structures, the magnitude and orientation of in-situ stresses of the planned project range are studied and analyzed.
由于地下水封油库特殊的地下结构形式，需要对工程区范围内的地应力的量值和方向进行详细的研究分析。
The requirements of impressed current anodes for the protection of underground structures were presented in this paper according to the analysis of working conditions.
本文分析了地下结构物外加电流阴极保护用阳极的工况环境条件；
First, the main factors for the classification of rock quality are selected by carefully analyzing all the influencing factors of rock quality in underground structures.
首先，在全面深入分析地下结构岩体质量影响因素的基础上，确定出其主要影响因素。
Seismograms (graphic representations of the measuring results) or model calculations derived from them allow the formulation of statements about the underground structures.
震动图(测量结果的图示)或模型计算的出现，使得将地下结构可视化成为了可能。
Abstract: many scholars study the depth of underground structures buried to the seismic response of underground structures by theoretical analysis and numerical calculation.
摘要：很多学者对于地下结构埋深等因素对于地下结构的地震反应展开了理论分析与数值计算。
These underground structures rest on the more pronounced peaks and give continuity to the indigenous tradition of using the tutelary hills as observatories and essential references.
这些地下结构停留在更为显著的山顶，延续了当地使用守护山作为天文台和必要的参考的传统。
Under the condition of directly hit with precision-guided munitions, the research on the spall-resistant dam- age for underground structures has become important in protective engineering.
用钢板对地下结构进行抗震塌破坏加固改造，已成为精确打击条件下坑道防护工程研究的重要内容之一。
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