挡土墙

Follow both that of text summarize reinforced earth breast wall collapse mode and stability require, the design and calculation method of the introduce adoptive constitutive model research reinforced earth retaining wall.

接着，本文总结了加筋土挡土墙的破坏形式和稳定性要求，采用的本构模型的介绍，研究了加筋土挡土墙的设计与计算方法。

In application, it would use trim problem of cantilever wall for Taiwan Highway Bureau as an example to establish the optimal requirement layout of steel bar by different retaining wall height. It would decrease scrap through appropriate trim plan of steel bar and the efficiency is obvious.

应用上，本文以台湾省公路局悬臂式挡土墙设计标準图主筋裁切為例，尝试建立不同挡土墙高度之主筋裁切最这钢筋需求配置，试想若能透过这当钢筋裁切计画使残料数量降低，其间的效益不可忽视。

In order to compute the failure probability of structural systems for stability of gravity retaining walls, firstly, two performance functions against overturning and sliding of gravity retaining walls were established. Then, the first order second moment theory in structural reliability analysis, i.e., the checking point method was introduced to compute the two failure modes respectively, and two corresponding reliability indexes could be obtained.

为了计算重力式挡土墙稳定性的结构体系失效概率，首先分别建立重力式挡土墙结构抗倾覆稳定性和抗滑移稳定性的功能函数，然后引入结构可靠度分析一次二阶矩法中的验算点法分别对两种失效模式进行计算，得出两个相应的可靠度指标。

The purpose of this research is to investigate the stability influence of side slope from the environment before/after road development in mountain area. Suitable side slope protection practices were chosen at that time according to the damage of the collapse. These practices are box gabion, net-paved plant, pilling and railing, and mortar bond, cantilever retaining wall, gravity retaining wall, etc. The ecosystem environment can be protected and maintained continuously by these practices.

本研究之目的在探讨山区道路开辟前、后环境对边坡稳定影响，并依据崩塌损坏情况，以现场环境条件选择适当边坡保护工法，本区以箱型蛇笼、铺网植生、打桩编栅、浆砌块石等各工法成效，以维护动植物生长环境与维持原生物种栖息环境之生态工法，及依据实地现况因地制宜配合，以悬臂式挡土墙、重力式挡土墙等工法确切保护边坡，维护道路通行安全与顺畅。

It is assumed that potential sliding surface of the soil in the back of the retaining wall is composed of logarithmic spiral arc and line.

假定挡土墙后土体潜在滑裂面由对数螺线滑动面和平面组合而成，根据挡土墙后土体薄层单元的平衡条件推导出粘性土层主动土压力的计算公式。

OVERTURNING refers to the tipping over of the retaining wall as it rotates about the toe of the structure. The overturning force is the sum of each destabilizing force times its moment arm.

倾覆指挡土墙倾倒，相对于挡土墙沿它的结构支撑点旋转，倾覆作用是各个不稳定因素与力臂乘积的总和。

Considering the effect of the angle of internal friction on the inclination of sliding plane of soils behind retaining wall, circular and catenary, the two shapes of minor principal stress arch are theoretically analyzed. According to the shapes of minor principal stress arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are gained.

为克服现有考虑土拱效应的土压力计算方法不能考虑墙土摩擦角变化对挡土墙后土体滑裂面的影响的不足，考虑墙土摩擦角变化对挡土墙后上体滑裂面倾角的影响，对圆弧和悬链线两种拱形分别进行了分析，并与现有方法计算结果进行了比较。

Reinforced earth retaining wall is a widely used construction technique of retaining walls.

加筋土挡土墙是国内外广泛采用的挡土墙建设技术。

The presterssed anchor cable frame combined with backwall, drainage is necessary due to longtime sability and permanent utilization.Firstly,according the study of engineering of geology situation of the high slope, the mechanism of deformation failure and the major hazard of the high slope of PanMei is analysed comprehensively.And the whole slope is divided into two different geology enginnering areas:Western slope(1160 section plane -1240 section plane)and Eastern slope(1240 section plane -1320 section plane). The result of 3D numerical simulation is the same as geology judgement. Later,slope cut (1:0.75) is implemented based on the engineering comparison and criterion.Meanwhile, Limit equilibrium method , Monte Carlo Probabilistic slope stability the stability , Sensitivity analysis and Finent element method of for assessing the cutted slope stability is carried out. The result indicates that Western slope is instable, Eastern slope is relatively stable.So much attention should be paid to Western slope.Different reinforcement measures in different areas are given according to its stability and meet economical request. Gravity wall is introduced in accordance with landform in order to prevent small falling at the foot of the high slope ,which will be a threat to the high slope stability. Handling measure is also applied to Eastern slope. At last,FLAC3D numerical analysis shows the feasibility and reasonableness of the handling measure of the high slope.

论文首先研究了边坡的工程地质条件，全面分析边坡的变形破坏机制和边坡的主要地质灾害，将边坡分为西段不稳定边坡区(1160剖面～1240剖面)和东段相对稳定边坡区(1240剖面～1320剖面)，通过三维数值模拟再现了边坡在自重作用下的破坏机制和过程；在此基础上通过工程类比和规范要求，确定按照1：0.75进行放坡处理，并分析了放坡后边坡的稳定性状况，分别通过极限平衡法、蒙特卡洛法概率分析、参数敏感性分析和有限元稳定性计算等多种方法对边坡在各种工况下的进行稳定性研究，计算结果表明，西段边坡较之东段边坡稳定情况差，是边坡支护的关键之处，而东段边坡相对是稳定的；边坡的综合治理措施选用的是框架锚索并结合挡土墙和排水工程，治理设计根据不同区段的稳定性情况采用不同的支护结构，做到了经济合理的要求；在边坡的坡脚设置重力式挡土墙，防治边坡小规模的崩塌，会对上部的锚索支护护造成不利影响，进而影响边坡的稳定；东段边坡的填方区也给出了治理对策；最后通过三维显示拉各朗日有限差分程序(FLAC3D)模拟了高边坡放坡和支护效果，论证了治理措施的有效性和合理性。

The retaining wall of earth anchor is a type of light retaining wall. It is paid much attention and used widely now, specially at cragged slopes、retaining engineering at port and civil engineer.

锚杆式挡土墙是一种轻型挡土墙构筑物，自被采用以来，越来越受到人们的重视，特别在道路的深路堑边坡、港口岸边工程及工业与民用建筑的深基坑支护中发挥着重要的作用。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。