The role of bolts is to improve the performance of the structural mass, weaken the stress intensity at the crack tips and increase the crack propagating loads.
锚杆作用可增强结构体的力学性能，降低裂纹尖端的应力集中现象，提高裂纹尖端裂纹的起裂荷载；
As the groundwork and environment of constructions in large scale projects, engineering rock mass is the geological structural mass composed of rock blocks and discontinuities.
工程岩体作为大型工程中建筑物的地基和建筑物的环境，是由岩石块体和非连续节理(裂隙)组成的地质结构体。
Engineers are developing more efficient methods to mass produce non-uniform porous materials and solid foams that can be tailored to specific structural applications.
工程师们正在研发更多高效的方法，批量生产非均匀性多孔材料和固体泡沫，以适应具体的结构应用。
Based on the theory of stochastic finite element, the structural parameters of frame shear structure including stiffness and mass and damping are simulated to be stochastic variables.
以随机有限元理论为基础，将框剪结构的刚度、质量、阻尼等结构参数为随机变量。
Consistent mass matrix and lumped mass matrixes are the common types of mass matrixes in structural dynamic analysis.
一致质量矩阵与集中质量矩阵是结构动力分析中常用的质量矩阵形式。
Finally, the influences of the spandrel structure and the arch mass distribution mode upon the structural dynamic behavior are studied.
讨论了拱上建筑和拱圈质量分布模式对结构动力特性的影响。
This paper mainly studies a new method of structural damage identification-moving mass method. Firstly introduce in detail its implementing steps and theory analysis.
本文主要研究一种新型结构损伤识别方法——移动质量法，详细介绍了其实施步骤和理论分析。
Then, we analyse in detail the mass-accretion histories and structural properties of dark haloes in high-resolution N-body simulations.
本文利用高分辨率的N体数值模拟仔细分析了暗晕的质量吸积历史和内部结构演化历史。
After these, the structural natural frequency changes a little, but the grinder bed mass reduces greatly, thus the obvious result is achieved.
优化后，结构固有频率及刚度变化不大，而床身质量却大大下降，取得明显效果。
Structural parameters of aluminum hull are firstly optimized using minimal mass as the objective function.
首先，以质量最小为优化目标对耐压壳体结构参数进行了优化设计；
The further study of coal micro-structural features has great significance for gas mass transfer mechanism and efficient development of coalbed methane.
深入研究煤层气储层微观结构，对认清煤层气传质机理和高效开发具有重要意义。
Structural FE analysis on an integral bus is performed, in which optimal design of multiple performance objectives of structural strength, vibration modal frequency and mass is researched.
对某全承载式大客车进行了结构有限元分析，研究了该客车结构强度、振动模态频率、质量等多个性能目标的优化设计问题。
Some discussions on Code for dynamic Machine foundation Design (GB 50040-96) are had, including mass-spring-damper model, dynamic foundation parameters, load combination and structural requirements.
讨论了《动力机器基础设计规范》(GB 50040- 96)中的若干问题，包括质-弹-阻模型、地基动力参数、荷载组合和基础的构造要求等几个方面。
Taking the optimized structural design in a complex building as an example, the article introduces the essentials in the cross strip foundation mass concrete construction.
文章以某综合楼的结构优化设计为例，主要介绍了柱下交叉条形基础大体积混凝土的施工要点。
The prestressed anchor cable is to exert prestressed tension on unstable rock mass or structure to improve anti-slide capacity and structural stress of unstable rock mass.
预应力锚索是针对可能不稳定的岩体或建筑物基础施加预应张力，以提高不稳定体的抗滑能力和结构力。
Stability of reinforced structural rock mass can meet design demand by computing.
经计算，加固后的结构体稳定性满足设计要求。
The existence of structural surface in rock mass often makes notable influence on rock mass quality.
岩体中结构面的存在往往会对岩体质量造成显著影响。
In the simulation of the process of underground mining, mechanical properties and structural features of rock mass are considered.
模拟考虑了岩体力学特性及岩体结构特征，并模拟了井采过程。
Result The system mass depended not only on the structural parameters and operational parameters of TIMES, but also on the operational characteristics of power subsystem and thermal control subsystem.
结果系统的质量不仅与废水处理系统本身的结构参数、操作参数有关，而且与电源系统和热控系统的工作特性关系密切。
Huang Du Hotel has a special configuration and a complicated structural system, and mass and stiffness of floors are very non-uniform along vertical direction.
广西北海皇都饭店外形特殊，结构布置复杂，沿竖向质量与刚度分布很不均匀。
The topology optimization problems for minimization of structural compliance under a single constraint or multiple constraints involving mass moment of inertia are formulated.
常规的结构拓扑优化通常构造为给定材料体积约束下的结构最小柔顺性问题。
ResultsSand architecture of fan delta, subaqueous fan associated with main mass sources are outlined, helping to identify potential structural, lithologic and composite traps.
结果在凹陷内圈定了与主河口有关的扇三角洲前缘、水下扇等骨架砂体的展布，识别出了构造、岩性及复合等多种可能的有利圈闭。
The rock mass structural parameter concept consisting of the geometric and mechanical characteristic parameters being posed and the structural parameter values of rock mass at this site are presented.
文中提出了由岩体结构几何特征参数和力学特性参数所构成的岩体结构参数概念，并提供了三峡工程坝基岩体结构参数值。
In mass concrete construction, the structural cracks by cement hydration heat will influence the durability and mechanical properties of concrete.
在大体积混凝土施工中，由于水泥水化热等多种因素产生的混凝土结构裂缝将影响混凝土的耐久性能和力学性能。
Osteoporosis is skeletal disorder characterized by low bone mass and structural deterioration of bone tissue leading to bone fragility and an increased risk for fractures.
骨质疏松症是以低骨量和骨组织结构退化为特征，可以导致骨脆性增加和提升骨折风险，是一种骨骼紊乱性疾病。
Moving mass method is a practical structural damage identification method with much prospect.
移动质量法是一种极有前景的结构损伤识别实用方法。
As the method can only detect single damage in beam, this paper proposes the method of combining moving mass method and neural network to detect structural damage.
鉴于该方法只能识别梁中的单处损伤，提出了结合移动质量法和神经网络进行结构损伤识别的方法。
So, a dynamic analysis method for the stability of anchored rock mass containing the continuous structural plane will be founded on the energy method in this article.
因此，本文将以新的思路，从能量角度建立一种针对含连续结构面加锚岩体的稳定性动态分析方法。
These types of structural surfaces are the weak part of the rock mass. Their stiffness and strength are much smaller than the rock matrix material.
这些各种类型的结构面正是岩体中的薄弱部分，它们的刚度和力学强度比岩石母体材料小得多。
These types of structural surfaces are the weak part of the rock mass. Their stiffness and strength are much smaller than the rock matrix material.
这些各种类型的结构面正是岩体中的薄弱部分，它们的刚度和力学强度比岩石母体材料小得多。
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