动荷载

动荷载作用下国际平整度的数值求解

Mathematics Solution of International Roughness Index under Dynamic Load Action

混凝土动荷载的试验方法与特性研究综述

Overview on Test Methods and Characteristics of Concrete Dynamic Load

动荷载是由于地震力、不稳定的风、冲击波，往复式机器所产生

Dynamic loading is produced by seismic forces , non-steady wind , blast , reciprocating machinery .

本文考虑动荷载效应，通过大型有限元分析软件ANSYS建立了路面的动力学分析模型，深入研究荷载的动力效应对反分析结果的影响。

The paper establishes the dynamic mechanics model with Ansys software and analyses the effect of dynamic load on the results of the inverse analysis .

FWD动荷载作用下沥青路面层状体粘弹解与弹性解分析

Solution of multilayered viscoelastic and elastic bodies of asphalt pavement under action of FWD dynamical load

动荷载下砂土与EPS颗粒混合的轻质土（LSES）的强度标准及破坏机理研究

Study on strength criteria and failure mechanism of lightweight sand-EPS beads soil ( LSES ) under dynamic loads

运用有限元程序ANSYS，采用轴对称模型，求出了沥青路面在动荷载作用下的力学响应，并针对不同的荷载作用周期、荷载幅值以及不同的荷载作用形式进行了详细的分析与讨论。

Finite element software ANSYS was employed to investigate the mechanical response of asphalt pavement structure under the axisymmetrical dynamic loading , and different loading period , loading amplitude and loading form were discussed in detail .

对无泥型软弱层带在动荷载下的强度试验表明，天然含水状态下，软弱层带从静荷载至动荷载，显示出内聚力C减小幅度较大，而内摩擦角φ反而有所增加；

Through analyzing the dynamic strength testing data , it is found that under natural moisture state , the cohesion C of the interbed is reduced when compared with its static value , and on the contrary , its internal friction angle φ exhibits an increase .

分析显示，动荷载作用下，箱梁宽度、下部结构、顶板厚度、U肋厚度、荷载通过的横向位置等均对应变产生了较大影响，而箱梁高度对应变的影响不大。

The results show that width of box , nether structure , thickness of deck and U-rib , and transverse position of load all strongly influence the strain of pavement , however , the height of box makes little effect .

基于Biot动力固结方程，考虑了土体和水体的惯性力以及水土之间的耦合作用，采用LaplaceHankel积分变换求解耦联合方程组，得到动荷载下饱和地基振动问题的解答。

Based on Biot 's dynamic consolidation equations , by means of Laplace-Hankel transform technology , the integral solutions of stress and displacement in saturated soil with subjacent rock-stratum under axisymmetric arbitrary excitations were derived .

并对具有土质、浅埋、双线大跨度以及既有线运营动荷载条件下，依靠监控量测数据分析，论证CRD工法原理、工艺应用于西北类似条件的地下工程施工安全性和可靠性。

By means of the numerical simulation and spot measure , the safety and reliability to use CRD excavation method to building shallow big-span double-line tunnel under existing vibrant train load are tested .

现有的反演理论基本上都是以拟静力分析方法为基础，而实际的行车荷载和FWD荷载都是动荷载，因此开展动力模型下的反分析是路面材料性能反演的必然趋势。

Up to now , most of present back-analysis theories are based on quasi-static analysis method , in fact , the load of FWD is dynamic , so it is necessary to develop dynamic back-analysis .

s-1时，放大系数为1.35，放大系数随动荷载振幅的增大而增大；围岩塑性区面积也随振幅增大而增大。

When the amplitude is 0.5 m · s ~ ( - 1 ), the magnifying coefficient is 1.35.The magnifying coefficient and the area of plastic zone of surrounding rock increase with the increase of amplitude .

用FLAC3D初步分析了动荷载作用下埋深、洞室形状、地应力特征对地下岩体洞室应力特征的影响。

The influence of buried depth , sectional shape of cavern and in-situ stress condition on the stress characteristics of rock cavern under earthquake are analyzed in the present paper by FLAC ~ ( 3D ) .

隔板位移量随频率的增大先减小后增大，50Hz的高频动荷载对地下硐室群稳定性最不利；

The displacement of interlayer increases at the beginning and then decreases later with the increase of frequency . And the dynamic load of 50 Hz is most disadvantageous for the stability of underground caverns .

运用FLAC3D，系统研究动荷载振幅、频率以及工程因素对竖向排列地下硐室群稳定性的影响，并实例分析地下硐室群在爆破震动作用下的稳定性。

Influence of amplitude , frequency of dynamic loads and engineering factors on the stability of vertical arranged underground caverns is studied systemically with FLAC ~ ( 3D ), and the stability of underground caverns under blasting vibration is analyzed with example .

利用Laplace-Hankel联合积分变换，推导出了单层粘弹性半空间轴对称问题在动荷载作用下，层间完全接触情况的刚度矩阵，然后按传统的有限元方法组成总体刚度矩阵。

A stiffness matrix for single layer is derived firstly based on the fundamental visco-elasticity equations and Hankel Laplace combing integral transformation . And then a global stiffness matrix is established for multiplayer viscoelastic half space by using the finite element concepts considering the layers contact .

动荷载作用下边坡锚固系统合理设计探讨

Discuss on Reasonable Design of Slope Anchor System under Dynamic Loads

神经网络用于结构动荷载识别的研究

An Investigation on the Identification Method of Dynamic Loads of Constructure

路面动荷载与路面平整度关系的随机分析

The Spectral Analysis of the Surface Roughness and Pavement Dynamic Loads

动荷载作用下冻土温度变化及强度损失探讨

Temperature Change and Strength Descent of Frozen Soils under Dynamic Loading

动荷载作用下岩石非线性弹性响应研究

Investigation of the non-linear elastic responses of rock under impact loading

不同轨道状态对轮轨附加动荷载影响

Influence of Track State on Vertical Wheel / Track Dynamic Overloads

动荷载下粉煤灰土冻融损伤特性试验

Dynamic properties of damage for fly ash soil after freeze-thaw cycles

水电站厂房机组动荷载施加方式研究

Research on application methods of dynamic loads of hydropower house

动荷载巷道围岩裂隙演化的实验研究

Experimental Study on Cracks Developing in the Surrounding Rock of Dynamic-loaded Roadway

在爆破开挖过程中，由于爆破动荷载诱发的边坡崩塌和滑移是工程中常见的灾害之一。

The landslide induced from explosion is one of common engineering disasters .

单层球面网壳在简单动荷载作用下的失效研究

Failure Mechanism Analysis of Single-layer Spherical Shells Subjected to Simple Dynamic Loads

行车动荷载作用下路面平整度的预估

Calculation of pavement evenness under dynamic load of moving vehicle

林区桥梁动荷载冲击系数的试验研究

Study on impact coefficient of forest bridge live loads testing