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check-dam
相关语句
  淤地坝
     Some features of design and construction of Songjiagou check-dam
     宋家沟淤地坝设计和施工特点
短句来源
     The work that this paper does, enriches the contents and method of region check-dam planning to some extent.
     本论文所做的工作,在一定程度上丰富了区域淤地坝规划的内容与方法。
短句来源
     On the basis of investigating the present check-dam construction on the sport in Yan’an city, we find out exactly the quantity and summarize the important experiences of the present check-dam construction in the whole city.
     在对延安市淤地坝建设状况的实地考察的基础上,准确地摸清了延安市现状淤地坝建设的数量,总结出延安地区淤地坝建设的重要的经验。
短句来源
     This paper introduced research results and future’s research trend in the field of check-dam construction in our country.
     本文阐述了我国淤地坝建设领域的研究成果和今后的研究趋势。
短句来源
     Taking science and technology as support, plan and design check-dams scientifically, and rightly evaluate the comprehensive benefits of check-dam;
     以科技为支撑,科学规划和建设淤地坝,正确评价淤地坝的综合效益;
短句来源
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  “check-dam”译为未确定词的双语例句
     A Laboratory Study on Sediment-storage Effect of Check-dam Systems in the Small Watershed of Loess Plateau, China
     黄土高原沟道坝系拦沙效应模型试验研究
短句来源
     Distribution law of deposits' dry bulk density and its application in sediment restoration of check-dam
     坝地淤积物干容重分布规律及其在层泥沙还原中的应用
短句来源
     For soil organic matter, the tendency was: paddy field>irrigated farmland>terrace farmland>check-dam farmland>grassland> slope farmland>woodland>shrub land.
     不同土地利用类型土壤有机质含量次序为:水稻田>川地>梯田>坝地>荒草地> 坡耕地>林地>灌木林地。
短句来源
     There is little difference in bulk density among different land use types,but there is a tendency: shrub land>grassland>terrace farmland>check-dam farmland>woodland>slope farmland.
     结果表明,不同土地利用类型之间,土壤容重变异较小,其大小次序为:灌木林地>荒草地>梯田>坝地>林地>坡耕地;
短句来源
     For soil water content,that the tendency is: check-dam farmland>grassland>shrub land>slope farmland>woodland>terrace farmland.
     土壤水分变化相对较大,大小次序为:坝地>荒草地>灌木林地>坡耕地>林地>梯田。
短句来源
  相似匹配句对
     Study on relative stability of check dam system
     黄土高原地区淤地坝坝系相对稳定研究
短句来源
     The application of pannier check dam in slope slot
     石笼谷坊在坡水沟上的应用
短句来源
     Some features of design and construction of Songjiagou check-dam
     宋家沟淤地坝设计和施工特点
短句来源
     Re-check of Dam Sections Design for Gongzui Dam
     龚嘴大坝坝体断面设计复核
短句来源
     Jog to the Dam
     慢跑到水坝去
短句来源
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  check-dam
Check-dams are effective measures for soil and water conservation; concomitantly check-dam planning and construction urgently require current land use maps.
      


The average annual yields of silt of 200 check dams were measured. Thefactors influencing the annual yield of every dam were investigated with topo-graphic map and aerial photography.All of the investigated data are engagedin regression analysis with electronic computre. A prediction equation for esti-mation of the average annual yield of silt in a watershed has been achieved.

实测了200个淤地坝的年平均泥沙淤积量,用地形图和航空照片调查每坝年平均泥沙淤积量的影响因子,用电子计算机对各个影响因子数据进行回归分析,获得估算流域内年平均土壤侵蚀量的预报方程。

This paper describes the model test for stability of the Changzhao rubble masonry dam with concrete mortar. During construction it was found that under the foundaton of the dam there were several clayish layers with a lower coefficient of friction sandwiched between the midweathering rock mass. The designers adopted measures of constructing a cut-off trench behind the toe of the dam and using the rock foundation behind it to ensure the stability of the check dam. On models eleven conditions of two types of cut-off...

This paper describes the model test for stability of the Changzhao rubble masonry dam with concrete mortar. During construction it was found that under the foundaton of the dam there were several clayish layers with a lower coefficient of friction sandwiched between the midweathering rock mass. The designers adopted measures of constructing a cut-off trench behind the toe of the dam and using the rock foundation behind it to ensure the stability of the check dam. On models eleven conditions of two types of cut-off trenches were tested. This paper also describes some techniques on experiment upon stability of the Changzhao dam model, such as modes of p(waterpressure on upstream face of dam)-σ(horizontal displacement) curve, the simulation of the model material from the layer and the influence of the primary stress between layer faces, etc.

本文介绍了长诏水库混凝土砌石坝的稳定性模型试验的情况.施工过程中发现长诏坝基下半风化岩体中埋藏有多条夹泥层,其摩擦系数较低.设计选用在坝趾后建齿墙,利用齿后岩石共同保证挡水坝的稳定.总共进行了两种齿墙十一种情况的试验研究.本文还叙述了长诏坝稳定试验中的一些试验技术问题,包括P(作用于上游坝面的水压力)—δ(水平位移)曲线的形态,夹层材料的模拟和层面中初应力的影响等问题.

In this paper, the methods for calculating the effects of comprehensive soil conservation measures on the reduction of sediment yield in large watersheds are summarized, the amount of sediment reduced is estimated, and the factors which would exert influence on erosion control are ana- lysed.Wuding River, one of the large tributaries in the middle reaches of the Yellow River, contributes a great amount of sediment to the main river. Obvious results have been attained by adopting soil conservation measures on...

In this paper, the methods for calculating the effects of comprehensive soil conservation measures on the reduction of sediment yield in large watersheds are summarized, the amount of sediment reduced is estimated, and the factors which would exert influence on erosion control are ana- lysed.Wuding River, one of the large tributaries in the middle reaches of the Yellow River, contributes a great amount of sediment to the main river. Obvious results have been attained by adopting soil conservation measures on large areas of the watershed combined with building reservoirs and check dams in gullies and streams since liberation. According to the analyses of hydrological data and the estimating amount of sediment reduced by soil conservation measures, about 1.8×109 m3 of sediment has deposited in reservoirs and check dams up to 1981, and the amount of sediment entering into the Yellow River has been reduced in an average of l.6×108 tons annually during 1971-1980. Taking into account the decrease of rainfall, the sediment entering into the Yellow River has decreased more than 50% due to the comprehensive control measures.According to the typical analysis of the Dali River watershed located in the rolling loess area, it shows that among the various control measures, check dams are the best, reservoirs come next and the measures of slope control are less for the effects of storing sediment.

本文概括总结了较大流域综合治理减沙效益的计算方法,估算了减沙效益的定量数值,并对影响减沙效益的因素进行了初步探讨. 无定河是黄河中游水土流失严重的一条较大支流.建国以来,采取大面积水土保持和坝库工程控制相结合的治理方法,取得显著成效.本文利用水文资料分析和水利、水土保持措施数量对减沙效益进行估算,截止1981年,坝库共拦沙18亿立米,其中1971~1980年平均每年减少入黄泥沙近1.6亿吨,扣除因降雨量减少对减沙效益的影响,流域内因综合治理减沙效益亦达50%以上.通过对流域内地处黄土丘陵沟壑区的大理河的典型分析表明,在各项治理措施的拦沙效益中,淤地坝最大。其次是水库,治坡措施拦沙效益较小.

 
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