本文關(guān)鍵詞： 面板堆石壩 填筑碾壓質(zhì)量 施工質(zhì)量實(shí)時(shí)監(jiān)控 干密度預(yù)測模型 干密度—可靠度二元耦合評(píng)價(jià)　出處：《天津大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：水庫工程在防洪、供水、灌溉、發(fā)電、改善河道基流等方面發(fā)揮著重要作用，然而在其建設(shè)過程中，由于受繁雜的工程施工工藝、緊張的工期、巨大的壩體填筑工程量等因素的制約，水庫壩體填筑質(zhì)量的安全性面臨巨大挑戰(zhàn)。傳統(tǒng)面板堆石壩建設(shè)施工采用隨機(jī)取樣的干密度實(shí)驗(yàn)來檢測壩體填筑質(zhì)量，其實(shí)驗(yàn)結(jié)果不能全面反映壩體實(shí)際的碾壓質(zhì)量，影響壩體質(zhì)量評(píng)價(jià)的可靠性。本文以面板堆石壩的填筑碾壓質(zhì)量為研究對(duì)象，依托本實(shí)驗(yàn)室研究開發(fā)的“面板堆石壩填筑碾壓過程實(shí)時(shí)監(jiān)控系統(tǒng)”，進(jìn)行了基于實(shí)時(shí)監(jiān)控的面板堆石壩壓實(shí)質(zhì)量控制評(píng)價(jià)研究，取得成果如下： （1）針對(duì)面板堆石壩壩體填筑碾壓的質(zhì)量控制問題，介紹了面板堆石壩壩體填筑的質(zhì)量控制要求，闡述了本課題組研制開發(fā)的“面板堆石壩填筑碾壓過程實(shí)時(shí)監(jiān)控系統(tǒng)”的工作原理及在水庫面板堆石壩工程中的應(yīng)用進(jìn)展，分析了料源屬性和碾壓參數(shù)等對(duì)壩體填筑質(zhì)量的影響，確定了碾壓干密度的影響參數(shù)。 （2）在分析面板堆石壩質(zhì)量控制參數(shù)（干密度）與其影響因素（碾壓遍數(shù)、壓實(shí)厚度、振動(dòng)狀態(tài)、壩料含水率和料源級(jí)配等）內(nèi)在關(guān)系的條件下，建立基于遺傳神經(jīng)網(wǎng)絡(luò)的壩體干密度預(yù)測模型，實(shí)現(xiàn)了壩體全倉面的碾壓干密度分布值獲取，并對(duì)該模型的精度進(jìn)行驗(yàn)證。 （3）考慮壩體填料參數(shù)的不均勻性和干密度參數(shù)對(duì)碾壓質(zhì)量的影響，，本文將可靠性理論引入壩體料源參數(shù)的變異性研究中，分析了壩料參數(shù)變異性因子對(duì)碾壓干密度的影響，提出了耦合壩體干密度和可靠度的面板堆石壩壩體壓實(shí)質(zhì)量的評(píng)價(jià)方法，最后建立了面板堆石壩壩體干密度—可靠度二元耦合壓實(shí)質(zhì)量評(píng)價(jià)模型，其結(jié)果更客觀地反映了壩體倉面的碾壓質(zhì)量，進(jìn)一步提高了壩體填筑質(zhì)量評(píng)價(jià)的可靠性，為面板堆石壩壩體碾壓質(zhì)量的控制管理和評(píng)價(jià)分析工作提供決策依據(jù)。
[Abstract]:Reservoir engineering plays an important role in flood control, water supply, irrigation, power generation and improvement of river basic flow. However, due to the complicated construction technology, the construction period is tight in the construction process. The security of dam filling quality is facing a great challenge due to the constraints of huge dam fill volume and other factors. The traditional construction of face rockfill dam uses random sampling dry density test to detect dam filling quality. The experimental results can not fully reflect the actual compaction quality of the dam body and affect the reliability of the dam quality evaluation. This paper takes the fill roller compaction quality of the face rockfill dam as the research object. Based on the research and development of the "real-time monitoring system for the filling process of the rockfill dam with concrete face face", the research on the quality control evaluation of the compaction quality of the rockfill dam based on the real-time monitoring is carried out. The results are as follows: 1) aiming at the quality control of filling and compaction of face rockfill dam, the paper introduces the quality control requirements of dam body filling in face rockfill dam. This paper describes the working principle of the "real-time monitoring system for the filling and rolling process of the face rockfill dam" developed by our research group and its application progress in the reservoir face rockfill dam project. The effects of material source properties and roller compaction parameters on dam filling quality are analyzed and the influence parameters of roller compaction density are determined. (2) under the condition of analyzing the quality control parameters (dry density) of face rockfill dam and its influencing factors (compaction times, compaction thickness, vibration state, water content of dam material and material source gradation, etc.). The prediction model of dry density of dam body based on genetic neural network is established. The distribution value of roller dry density on the whole silo surface of dam body is obtained, and the accuracy of the model is verified. 3) considering the inhomogeneity of filling parameters and the influence of dry density parameters on roller compaction quality, the reliability theory is introduced into the study of variability of dam material source parameters. The influence of variable factor of dam material parameters on the dry density of roller compaction is analyzed, and the evaluation method of compaction quality of face rockfill dam coupled with dry density and reliability of dam body is put forward. Finally, a binary coupling compaction quality evaluation model of concrete face rockfill dam with dry density and reliability is established, and the results reflect the rolling quality of dam silo surface more objectively. The reliability of dam fill quality evaluation is further improved, and the decision basis is provided for the control, management, evaluation and analysis of rolling quality of face rockfill dam.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV641.43

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 左登發(fā);劉鵬;;基于抗力隨時(shí)間變化的橋梁可靠度評(píng)估研究[J];安徽建筑工業(yè)學(xué)院學(xué)報(bào)(自然科學(xué)版);2009年06期

2 張潤利;劉劍;肖艷軍;;振動(dòng)壓路機(jī)-路基土壤系統(tǒng)的數(shù)學(xué)模型[J];中國工程機(jī)械學(xué)報(bào);2004年02期

3 尹繼瑤,梁鳳英;壓實(shí)技術(shù)與壓實(shí)機(jī)械的新發(fā)展[J];工程機(jī)械與維修;2001年10期

4 馬洪琪;鐘登華;張宗亮;孫玉軍;劉東海;;重大水利水電工程施工實(shí)時(shí)控制關(guān)鍵技術(shù)及其工程應(yīng)用[J];中國工程科學(xué);2011年12期

5 朱禮友;劉曉婷;;壓實(shí)度與壓實(shí)工藝參數(shù)之間關(guān)系的探討[J];建設(shè)機(jī)械技術(shù)與管理;2006年02期

6 ;Theoretical research on construction quality real-time monitoring and system integration of core rockfill dam[J];Science in China(Series E:Technological Sciences);2009年11期

7 鐘登華;劉東海;崔博;;高心墻堆石壩碾壓質(zhì)量實(shí)時(shí)監(jiān)控技術(shù)及應(yīng)用[J];中國科學(xué):技術(shù)科學(xué);2011年08期

8 金廣謙,閆晶,梁緣;軍用橋梁疲勞可靠性設(shè)計(jì)方法和分項(xiàng)系數(shù)[J];解放軍理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2005年04期

9 張國輝;盧學(xué)巖;;碾壓式土石壩壓實(shí)質(zhì)量控制中若干問題的淺析[J];吉林水利;2008年10期

10 黃洪鐘;;機(jī)械強(qiáng)度的模糊可靠性設(shè)計(jì)[J];機(jī)械設(shè)計(jì)與制造;1991年01期

相關(guān)博士學(xué)位論文 前4條

1 張平;基于實(shí)時(shí)監(jiān)控的高心墻堆石壩施工仿真與進(jìn)度控制研究[D];天津大學(xué);2011年

2 趙晨生;高心墻堆石壩耦合施工進(jìn)度與質(zhì)量的實(shí)時(shí)控制研究[D];天津大學(xué);2012年

3 鐘桂良;碾壓混凝土壩倉面施工質(zhì)量實(shí)時(shí)監(jiān)控理論與應(yīng)用[D];天津大學(xué);2012年

4 崔博;心墻堆石壩施工質(zhì)量實(shí)時(shí)監(jiān)控系統(tǒng)集成理論與應(yīng)用[D];天津大學(xué);2010年

本文編號(hào)：1462346