發(fā)布時(shí)間：2018-08-03 13:30

【摘要】：河流是現(xiàn)代城市的重要資源和環(huán)境承載體,其不僅在城市存亡發(fā)展中占據(jù)重要地位,同時(shí)是影響城市形象,美化城市環(huán)境的重要因素。城市河流不但應(yīng)有防御洪水、排澇減災(zāi)、調(diào)水引清、蓄水灌溉、內(nèi)陸航運(yùn)等基本功能,還應(yīng)肩負(fù)起美化城市環(huán)境,調(diào)節(jié)小流域氣候,平衡區(qū)域生態(tài)系統(tǒng)等功能。作為山西第一大河,黃河第二大支流的汾河,流域內(nèi)自然資源豐富,生產(chǎn)條件得天獨(dú)厚,是山西的政治、經(jīng)濟(jì)、文化中心。由于經(jīng)濟(jì)社會(huì)的快速發(fā)展和人口的急劇增長(zhǎng),流域內(nèi)生態(tài)環(huán)境受到了嚴(yán)重破壞。山西省政府在“十三五”規(guī)劃中制定了汾河流域生態(tài)修復(fù)重大的戰(zhàn)略,本文依托于山西河中下游段生態(tài)治理工程進(jìn)行蓄水壩優(yōu)化設(shè)計(jì)研究。本論文在研究學(xué)習(xí)了國(guó)內(nèi)外河道治理和蓄水壩的研究現(xiàn)狀基礎(chǔ)上,基于汾河中下游段生態(tài)治理工程的實(shí)際,進(jìn)行以下方面的研究:1)在分析研究液壓升降壩工作原理及特點(diǎn)的基礎(chǔ)上,運(yùn)用有限元分析軟件ansys分析研究了壩面與支撐桿接觸方式,壩面尺寸,壩面安放角度等因素對(duì)液壓升降壩受力結(jié)構(gòu)特性的影響,對(duì)設(shè)計(jì)單位推薦使用的4m高液壓升降壩進(jìn)行整體結(jié)構(gòu)特性分析,針對(duì)不安全因素提出解決方案。2)分析液壓升降壩在壩頂過(guò)流、局部開啟過(guò)流及塌壩過(guò)流時(shí)的流量特性,利用Visual Basic6.0及SQLSever2000編寫液壓升降壩過(guò)流流量計(jì)算程序,并對(duì)不同工況下的過(guò)流特性進(jìn)行分析。3)依據(jù)液壓控制系統(tǒng)的設(shè)計(jì)原則、功能、液壓?jiǎn)㈤]系統(tǒng)組成及計(jì)算機(jī)電氣控制系統(tǒng)的需求,進(jìn)行液壓?jiǎn)㈤]系統(tǒng)流程設(shè)計(jì)、液壓控制系統(tǒng)結(jié)構(gòu)設(shè)計(jì),對(duì)控制系統(tǒng)主要硬件進(jìn)行選擇。4)在上述研究的基礎(chǔ)上,進(jìn)行液壓升降壩系統(tǒng)的水工設(shè)計(jì),利用組態(tài)王軟件進(jìn)行液壓控制系統(tǒng)開發(fā),基于過(guò)流計(jì)算的成果,提出工程日常運(yùn)行控制和管理的模式。液壓升降壩在實(shí)際應(yīng)用中有諸多優(yōu)點(diǎn),但由于其理念提出及實(shí)際應(yīng)用時(shí)間較短,目前對(duì)液壓升降壩理論研究資料較少。本研究旨在以上優(yōu)化研究的基礎(chǔ)上,總結(jié)理論經(jīng)驗(yàn),以期為山西汾河流域生態(tài)修復(fù)工程及沁河、滹沱河等7大流域的生態(tài)修復(fù)工程的建設(shè)提供技術(shù)支持。對(duì)不同工作環(huán)境(多泥沙及冰凍)、不同尺度、不同類型液壓升降壩的結(jié)構(gòu)分析、過(guò)流流量公式實(shí)驗(yàn)驗(yàn)證是下一步的研究方向。
[Abstract]:Rivers are important resources and environmental carriers of modern cities. They not only play an important role in the development of cities, but also affect the image of cities and beautify the urban environment. Urban rivers should not only have the basic functions of flood prevention, flood drainage and disaster reduction, water diversion, water storage and irrigation, inland shipping, but also should shoulder the functions of beautifying the urban environment, regulating the climate of small watersheds and balancing the regional ecosystem. As the largest river in Shanxi and the second tributary of the Yellow River, Fenhe River is rich in natural resources and unique in production conditions. It is the political, economic and cultural center of Shanxi Province. Due to the rapid development of economy and society and the rapid growth of population, the ecological environment in the basin has been seriously damaged. In the 13th Five-Year Plan, Shanxi Provincial Government has formulated the important strategy of ecological restoration in Fenhe River Basin. This paper is based on the ecological control project in the middle and lower reaches of Shanxi River to study the optimal design of water storage dam. On the basis of studying the current situation of river treatment and water storage dam at home and abroad, this paper is based on the reality of the ecological control project in the middle and lower reaches of Fenhe River. On the basis of analyzing and studying the working principle and characteristics of hydraulic lifting dam, the contact mode between dam surface and supporting rod and the size of dam surface are studied by using finite element analysis software ansys. The influence of the angle of the dam surface on the structural characteristics of the hydraulic lift dam is analyzed, and the overall structural characteristics of the 4m high hydraulic lift dam recommended by the design unit are analyzed. In view of the unsafe factors, the paper puts forward a solution (.2) to analyze the flow characteristics of hydraulic lifting dams when the dam top overflows, local open overflows and collapse dams overflow. The Visual Basic6.0 and SQLSever2000 are used to compile the hydraulic lifting dam flow calculation program. According to the design principle and function of hydraulic control system, the composition of hydraulic hoist system and the requirement of computer electrical control system, the flow chart of hydraulic hoist system is designed. On the basis of the above research, the hydraulic engineering design of hydraulic lifting dam system is carried out, and the hydraulic control system is developed by using Kingview software. Based on the results of overcurrent calculation, the control and management mode of engineering daily operation is put forward. Hydraulic lifting dam has many advantages in practical application, but because of the short time of its concept and practical application, there are few theoretical research data on hydraulic lift dam at present. The purpose of this study is to sum up the theoretical experience on the basis of the above optimization study, in order to provide technical support for the ecological restoration project of Fenhe River Basin in Shanxi Province and the construction of ecological restoration engineering in Qinhe River Basin and Hutuo River Basin. It is the next research direction to analyze the structure of hydraulic lift dam in different working environment (silt and freezing), different scale and different types of hydraulic lifting dam, and to verify the formula of overflow flow.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TV85;TV64

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