查询词典 dams

In this paper, based on the field survey data and model test results, the overtopping failure mechanism and process of break development of earth-rock dams are analyzed, and a numerical model which describes the process of break development of earth-rock dams is put forward.

本文首先根据现场溃坝调查资料和大型溃坝试验结果，研究分析了土石坝的溃决机理和溃决过程，在此基础上提出了一个描述土石坝漫顶破坏溃口发展过程的数值模型。

Based on observation data, the development process of the breach of landslide dams due to over topping may divided into 3 modes: vertical erosion, breadthwise extension and regression erosion of dam slope. A mathematical model describing the gradual failure process of the landslide dams is established based on the formula expressing the high intensity erosion obtained from experimental data, which can integrate the 3 modes of breach development process together. The validity of the model is verified by observation data.

根据一般滑坡堰塞坝特点和实际观测到的堰塞坝溃口发展规律建立了一个溃口扩展模式，并将溃口扩展过程归纳为溃口垂直下切、横向扩展和坝坡溯源冲刷3种主要表现形式，采用通过试验资料建立的高强度泥沙冲刷计算公式将这3种表现方式联系在一起，建立了堰塞坝逐渐溃决数学模型，并利用实测溃坝资料验证了模型的可靠性。

The results of analysis show that three earth dams under test are uniform earth dams with sound quality. The position of saturation line determined by GPR complies with the result determined by the piezometric tube.

测试分析表明，所测的三座土坝为均质土坝，工程质量较好，用探地雷达确定的浸润线位置与测压管实测结果相吻合。

And he wanted First Army to attack north of the Ardennes, south of Aachen, to get the Roer River dams, so that the U.S. Ninth Army could cross the Roer downstream from the dams, then close to the Rhine.

而打算令第1集团军向阿登以北、亚琛以南攻击，夺取鲁尔河水坝，以便美第9集团军能够横渡水坝下游鲁尔河，然后抵达莱茵河。

The investigation of a reservoir was done for the first time in China. The results show that construction and removal of dams are complicated, and that the studies on the ecological environment impact due to decommissioning and removal of dams are of great significance.

结果表明，水库大坝的兴建与退役拆除均是复杂的系统工程，水库大坝退役拆除及对生态环境影响研究具有重要的意义，我国在这方面刚刚起步。

The problem of interaction of dam-reservoir for cored rockfill dams are also deeply discussed, and the author points out that it seems unnecessary to overestimate the impact of hydrodynamic pressure for cored rockfill dams constructed on deep overburdens.

在本文的研究中，作者还对深覆盖层上的心墙土石坝坝—库水相互作用问题进行了深入研究，并指出对修建在深覆盖层上的心墙土石坝进行动力分析时过分强调动水压力的影响似乎没有必要。

A brief discussion on seismic design of high arch dams is made through the following three aspects:interaction of arch dams-foundation-reservoir water,dynamic stability of high arch dam abutment ,effect of transverse slots on seismic design of high arch dam,and those aspects referred to above is not enough for seismic design of high arch dam.

对高拱坝的抗震设计进行了分析，包括拱坝坝体-地基-库水动力相互作用分析、高拱坝坝肩抗震稳定分析、横缝对高拱坝抗震设计的影响，仅对高拱坝抗震设计研究的几个方面进行了概括总结。

Based on these hot and key spots in construction of high dams at present, Combining one of the 973 plan projects: Study of Global Stability of Geology Engineering System under Interaction of Several Factors(NO.2002CB412707), the dissertation mainly studies the stability anomaly and corresponding shape optimization. The main contents are as follows:The dissertation advances stability analysis method of arch dams based on arch-cantilever method, that is, the stability of arch ring and cantilever are analyzed respectively based on arch-cantilever method and corresponding formula of stability calculation is established. So the calculation methods of dam stress and stability are unified.

围绕目前高拱坝建设中的热点和重点问题，结合973计划课题：多因素相互作用下地质工程系统的整体稳定性研究(编号 2002CB412707)，重点研究高拱坝的稳定转异以及体形优化，现将主要内容归纳如下：本文提出基于拱梁分载法的拱坝稳定分析方法，即在拱梁分载法的基础上，分别分析拱圈和悬臂梁的稳定，建立相应的稳定计算公式，统一坝体结构稳定和应力计算方法。

In recent years, the county up and down firmly establish the "animal husbandry instability instability in the whole county, not the rich herders, the county is not rich" ideas, has always been to increase efficiency of agriculture and animal husbandry, farmers and herdsmen in rural incomes and maintain stability as the work of farmers and village enterprise, has invested 2,480 million yuan to build one or two bases and livestock disaster insurance camel, cashmere goats base, completed the demonstration county animal husbandry and the "three" of training works, the new on the restoration and protection of natural vegetation projects, ban works, the completion of 3 million mu of artificial grass, aqueduct built five more than eighty kilometers, 22 kilometers of flood control dams, the new hit 12 motor-pumped wells, construction of the drug bath, flood pool 20, the completion of fencing 41.7 million mu of grassland, built to high standards SHELTER 20, control the "three" of 57.7 million mu of grassland, improved herd face up to 82%, the proportion of school-age dams more than 56%.

近年来，全县上下牢固树立&牧业不稳，全县不稳，牧民不富，全县不富&的思想，始终把农牧业增效、农牧民增收和保持农村稳定作为农牧村工作的重点来抓，先后投资2480余万元，建成了一、二期防灾保畜基地和骆驼、绒山羊基地，完成了畜牧业示范县和&三化&治理工程，新上了天然植被恢复与保护工程、退牧还草工程，完成人工种草3万亩，建成引水渠5条80多公里，防洪堤坝22公里，新打机井12眼，修建药浴池、涝池20座，完成围栏封育草场41.7万亩，建高标准暖棚20座，治理&三化&草场57.7万亩，畜群改良面达82%，适龄母畜比例达到56%以上。

The safety evaluation for super-high arch dams under design could be performed by comparative study with constructed dams.

基于相同网格尺寸、相同材料模型以及相同计算软件，以已建工程二滩和Kolnbrein加固前后作为类比研究对象，对小湾拱坝的坝踵开裂及极限承载力进行研究。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。