【摘要】： 混凝土面板堆石壩擠壓墻法是一項(xiàng)問(wèn)世不久的面板壩墊層區(qū)施工新技術(shù)。它與傳統(tǒng)面板壩墊層區(qū)施工方法比較有著許多突出的優(yōu)點(diǎn)。現(xiàn)在雖然國(guó)外已有使用的先例,但依靠?jī)H有的幾篇廣告性的介紹文章,無(wú)法滿足施工應(yīng)用的需要,而且最早使用該方法的巴西依塔壩在蓄水后還發(fā)生了最大滲流量為1300L/s的滲漏,這令很多人對(duì)該方法應(yīng)用的有效性產(chǎn)生了懷疑。因此,系統(tǒng)進(jìn)行擠壓墻法研究,對(duì)指導(dǎo)面板壩設(shè)計(jì)和施工有著重要的經(jīng)濟(jì)價(jià)值和工程意義。 本文通過(guò)較長(zhǎng)時(shí)間的理論和實(shí)踐研究,在擠壓墻法、施工機(jī)械、擠壓墻砼材料、施工方法、工藝流程、施工成本及面板混凝土應(yīng)力變形的影響等方面,重點(diǎn)做了大量工作,初步得到了如下有益的成果和認(rèn)識(shí): 一、通過(guò)自主設(shè)計(jì)、試制、野外機(jī)械性能試驗(yàn)和調(diào)試,完成了邊墻擠壓機(jī)樣機(jī)結(jié)構(gòu)的組裝設(shè)計(jì),試制了性能樣機(jī),確定了各項(xiàng)主要技術(shù)參數(shù),并在此基礎(chǔ)上首次將邊墻擠壓機(jī)性能樣機(jī)發(fā)展為獲得國(guó)家專(zhuān)利權(quán)的邊墻擠壓機(jī)產(chǎn)品。 二、通過(guò)室內(nèi)試驗(yàn)和工程試用,提出了混凝土擠壓墻的實(shí)用斷面形式和混凝土材料的配合比的實(shí)用配方。 三、通過(guò)數(shù)值模擬施工過(guò)程的理論計(jì)算,對(duì)初期擠壓墻的施工穩(wěn)定性和擠壓墻法對(duì)面板應(yīng)力、變形的影響,從理論上提出了具有一定說(shuō)服力的評(píng)價(jià)意見(jiàn)。 四、通過(guò)工程實(shí)踐的摸索、總結(jié)和不斷改進(jìn),提出了邊墻擠壓機(jī)工作原理的清晰概念和擠壓機(jī)使用和保養(yǎng)的技術(shù)細(xì)則。 五、通過(guò)工程應(yīng)用的摸索、總結(jié)和不斷改進(jìn),提出了擠壓墻法墊層區(qū)施工的方法、配套工藝流程和工程成本的經(jīng)濟(jì)性分析論據(jù)。
[Abstract]:The extrusion wall method of concrete face rockfill dam is a new construction technology in cushion area of concrete faced rockfill dam. It has many outstanding advantages compared with the traditional construction method of concrete face dam cushion area. Although there have been precedents for use in foreign countries, but relying on only a few advertising articles, they cannot meet the needs of construction applications. Moreover, the Brazilian Ita Dam, which was the first to use the method, has a leakage of 1300L/s after impoundment, which makes many people doubt the validity of the method. Therefore, the study of extrusion wall method is of great economic value and engineering significance to guide the design and construction of concrete faced dam. In this paper, a lot of work has been done in the aspects of extrusion wall method, construction machinery, extruded wall concrete material, construction method, technological process, construction cost and the influence of stress and deformation of concrete face slab on the basis of long time theoretical and practical research. The results are as follows: first, through independent design, trial production, field mechanical performance test and debugging, the assembly design of the prototype structure of the sidewall extruder has been completed, and the performance prototype has been trial-produced. The main technical parameters are determined, and the performance prototype of the sidewall extruder is developed for the first time to obtain the national patent for the side wall extruder. Secondly, through laboratory test and engineering trial, the practical cross section form of concrete extrusion wall and the practical formula of mix ratio of concrete material are put forward. Thirdly, through the theoretical calculation of numerical simulation of the construction process, the author puts forward some persuasive evaluation opinions on the stability of the initial extrusion wall construction and the influence of the extrusion wall method on the stress and deformation of the slab. Fourthly, through the exploration of engineering practice, summing up and improving continuously, the clear concept of working principle of sidewall extruder and the technical rules for the use and maintenance of extruder are put forward. Fifthly, through the exploration of engineering application, summing up and improving continuously, the paper puts forward the construction method, supporting technological process and economic analysis of engineering cost of extruding wall method cushion area.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2006
【分類(lèi)號(hào)】：TV52;TV641.4

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 郝轉(zhuǎn);劉偉明;;擠壓邊墻在柏葉口混凝土面板堆石壩中的應(yīng)用[J];山西水利科技;2011年02期

相關(guān)碩士學(xué)位論文 前1條

1 劉思遠(yuǎn);擠壓邊墻對(duì)混凝土面板砂礫石壩的影響分析[D];新疆農(nóng)業(yè)大學(xué);2013年

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本文編號(hào)：2405630