Sediment silt up in reservoir is one of the important contents in key water control project , research on the effect and surrounding environment effected by patterns of enclose tideland for cultivation in key water control project , which has risen concerns of lots of departments 水库泥沙淤积是水利枢纽工程研究的重要内容之一，青铜峡水库库区淤积后滩地的围垦利用方式对水利枢纽工程的安全运行、效益发挥以及对周边环境的影响分析研究已引起各方面的关注。
And study the quantified methodology of self - restraint the source , the soil erosion reducing , the soil nutrient prediction and reservoir mud alluvial prediction , and applies the model count the water conservation benefit in lingchuan county magedang experimental unit in shanxi province 并分别探讨了涵养水源、减少土壤侵蚀、减少土壤养分流失及减少水库泥沙淤积的效益量化计算方法，以山西省陵川县马屹当小水电代燃料试点工程为例进行了水土保持效益的实例计算。
Firstly , we account for the former made and the sand selected are reasonable by experiments . then we develop the first project carrying the experiment for filling up of 30 years . contrasted with the count , the results have no difference , we carried two experiments under different water levers by the actually facts if engineering work in early days . by the result , we know that the gross of fill up have no difference 本文从白石水库泥沙模型试验入手，模型试验首先通过模型糙率和模型选沙验证试验，说明模型制作和选沙是合理的；然后开展初设方案30年运用水库淤积试验，并与数模计算对比，基本相同；试验结合工程初期运用实际情况，进行了两个不同初期运用水位方案的对比试验，从两个方案试验结果看，初期运用的两个方案淤积总量差别不大，而从效益看，方案二优于方案一。
Qualitative analysis on the effect of flood control and engineering safety - , seizing lots of water conservancy effective adjust storage . then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river , soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given , then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir 本文从青铜峡水库泥沙淤积入手，分析水库泥沙淤积特性和库区围垦堤开发利用淤积滩地的现状，对防洪安全及工程安全的影响、侵占大量的有效调蓄库容、造成同级流量下水库水位抬升水库回水上延、对沿岸及过河建筑构成影响、因水位抬升致使库区周边灌区地下水排水不畅乃至倒灌而造成土地盐碱化、对水库库区大量淤积滩地无序围垦造成旅游资源破坏等五方面影响的定性分析，提出库区围垦堤是水库水位抬升的重要原因。
A brief introduction is given to the treatment of the zeya dam foundation , principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir . as for the excavation of the sand - gravel zones , except the toe slab and its 1 / 9 bottom width down stream , the alluvial layers are excavated to the micro - weathered rocks , while the other sections remain unexcavated . regarding to the treatment of the fracture zones , concrete filling is used for the toe slabs and semi - permeable materials are used for other section . according to the construction characteristics , a filter is placed in the down stream embankment foot . to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted . as a result safety , economic benefit , convenience in construction and good performace are achieved 介绍碧莲水电站拦水坝系软基上的水力自控翻板闸门溢流坝工程特点和设计原理.闸门利用水力和杠杆原理实现自控关闭；闸坝平时挡水发电,洪水期自动翻倒泄洪冲砂,有效地解决洪水对上游库区实物的淹没损失及水库泥沙淤积问题；闸坝采用地下混凝土连续墙进行地基防渗处理及面流消能，消能效果显著，工程投资少.本工程设计可供其它建固定坝淹没损失过大或在软基上建低重力式堰坝的类似工程参考
The paper discusses the methods of multi - objective ecological operation of reservoirs , which covers the establishment of legislation systems ; water demands for the basic ecological functions of downstream river channel ; reservoir discharge patterns simulating natural hydrological regimes ; regulation and control of sedimentation and eutrophication of reservoirs ; mitigation of the influences by water temperature stratification ; the operation techniques in pollution prevention and connectivity reinforcement of water systems 文中讨论了水库多目标生态调度的方法，包括建立相应法规体系；保证维持下游河道基本生态功能的需水量；模拟自然水文情势的水库泄流方式；进行水库泥沙调控及水库富营养化控制；减轻水体温度分层影响；进行防污调度以及增强水系连通性等方面的调度技术。
