本文選題：排水管道 + 管道惡化�。� 參考：《中國地質(zhì)大學（北京）》2014年碩士論文

【摘要】：城市地下排水管道主要用于輸送生活污水并及時排除雨水，，在城市居民生活以及基礎(chǔ)設(shè)施建設(shè)中都起到了至關(guān)重要的作用。但目前我國地下排水管道的運營管理系統(tǒng)并不完善，以至于由于排水系統(tǒng)故障引發(fā)的路面塌陷、污水管道外溢、城市內(nèi)澇等災(zāi)害頻頻發(fā)生。為了有效預(yù)防此類災(zāi)害，需要建立集監(jiān)測、評估、維護與修復于一體的地下排水管道評價系統(tǒng)。但目前我國對于地下排水管道缺陷的檢測評價方法比較單一，評價理論較為缺乏。我國2012年出臺城鎮(zhèn)排水管道檢測與評估技術(shù)規(guī)程也只列出了僅反映管道的表面狀態(tài)而無法估算管道的實際強度的圖像評價技術(shù)，因而其指導價值大打折扣。 本研究首先分析了國內(nèi)地下排水管道及其評價理論的發(fā)展現(xiàn)狀，并對地下排水管道運行狀況進行了調(diào)研分析，在此基礎(chǔ)上對在役排水管道定義了管道惡化的概念并對影響管道惡化的因素進行了歸類分析，然后把管道惡化分為了結(jié)構(gòu)惡化和水力惡化兩大類。 針對管道結(jié)構(gòu)狀態(tài)的惡化過程，本文先以Marston垂直土壓力理論為基礎(chǔ)闡述了管道在常規(guī)荷載作用下的受力狀態(tài)以及管土間的相互作用。當管道周圍土體承受的荷載過大或者因施工造成管道周圍土體流失時，都會引起管道的沉降變形，因此通過探討管道沉降標準，分析適用于模擬管道沉降作用的彈性地基梁模型，針對剛性管道和柔性管道提出了不同的沉降計算方法。此外由于因管道接口損壞導致管道失效的比例較高，本文分別針對管道的剛性接口和柔性接口在土體運動中力學性能的改變進行了分析。最后考慮到管道周圍存在長期的土體流失現(xiàn)象，本文對排水管道的懸空狀態(tài)也進行了一定程度的探討。 對于管道的水力惡化狀態(tài)，一般情況下其評估模型包括物理模型和統(tǒng)計模型兩種，但一方面由于本研究過程中未能獲取足夠的分析數(shù)據(jù)，一方面受限于本專業(yè)的研究范圍，本文對地下排水管道的水力惡化狀況只進行了統(tǒng)計分析，提出并分析比較了齊次泊松過程模型、過程更新模型、非齊次泊松過程模型以及漸進多元回歸等統(tǒng)計模型。
[Abstract]:Urban underground drainage pipes are mainly used to transport domestic sewage and remove Rain Water in time, which plays an important role in urban residents' life and infrastructure construction. However, the operation and management system of underground drainage pipeline in our country is not perfect at present, so many disasters such as pavement collapse, sewage pipeline overflow and urban waterlogging occur frequently due to the failure of drainage system. In order to prevent this kind of disaster effectively, it is necessary to establish an evaluation system of underground drainage pipeline which integrates monitoring, evaluation, maintenance and repair. However, at present, the inspection and evaluation method of underground drainage pipeline defects in our country is relatively single, and the evaluation theory is relatively lacking. In 2012, the technical regulations of urban drainage pipeline inspection and evaluation in China only listed the image evaluation technology which only reflected the surface state of the pipeline but could not estimate the actual strength of the pipeline, so its guiding value was greatly reduced. This paper first analyzes the development status of domestic underground drainage pipeline and its evaluation theory, and investigates and analyzes the operation of underground drainage pipeline. On this basis, the concept of pipeline deterioration is defined and the factors affecting pipeline deterioration are classified and analyzed. Then the pipeline deterioration is divided into two categories: structural deterioration and hydraulic deterioration. In view of the deterioration process of pipeline structure, based on Marston vertical earth pressure theory, the stress state of pipeline under normal load and the interaction between pipe and soil are expounded in this paper. When the load on the soil around the pipeline is too large or the soil loss around the pipe is caused by the construction, it will cause the settlement deformation of the pipeline, so the settlement standard of the pipeline is discussed. The elastic foundation beam model which is suitable for simulating pipeline settlement is analyzed. Different settlement calculation methods are proposed for rigid pipeline and flexible pipeline. In addition, due to the high proportion of pipeline failure caused by pipeline interface damage, the changes of the mechanical properties of the rigid and flexible joints in the soil are analyzed in this paper. Finally, considering the long-term soil loss around the pipeline, the suspended state of the drainage pipeline is also discussed to a certain extent. For the hydraulic deterioration of pipeline, generally, its evaluation model includes physical model and statistical model, but on the one hand, due to the failure to obtain enough analytical data in the course of this study, on the other hand, it is limited by the scope of the professional research. In this paper, the hydraulic deterioration of underground drainage pipeline is only analyzed, and the statistical models such as homogeneous Poisson process model, process renewal model, non-homogeneous Poisson process model and progressive multivariate regression model are put forward and compared.
【學位授予單位】：中國地質(zhì)大學（北京）
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU992

【參考文獻】

相關(guān)期刊論文 前10條

1 楊漢元;肖明堯;;CCTV管道內(nèi)窺技術(shù)在城市排水管道檢測中的應(yīng)用[J];城建檔案;2008年05期

2 黃崇偉;;機坪輸油管道力學行為計算理論與方法綜述[J];城市道橋與防洪;2011年04期

3 鄧志凌;夏金儒;唐勇;;CCTV技術(shù)在排水管道狀態(tài)檢測中的應(yīng)用[J];城市勘測;2009年05期

4 張雷;張誠;李建軍;;交通荷載作用下聚乙烯(PE)燃氣管道的應(yīng)力和穩(wěn)定性分析[J];城市燃氣;2010年09期

5 楊國華;黃統(tǒng)琳;姚忠亮;劉明華;;吸附劑的應(yīng)用研究現(xiàn)狀和進展[J];化學工程與裝備;2009年06期

6 歐陽浩;王濤;;地下管線受隧道施工影響的安全性判別[J];湖南交通科技;2009年01期

7 朱正國;喬春生;賴永標;;崇文門站施工允許地表沉降及三維有限元模擬分析[J];工程地質(zhì)學報;2006年02期

8 董琳琳;崔新壯;;壓實度對中高路堤沉降影響的數(shù)值分析[J];公路;2009年07期

9 朱彥;楊順新;王舜;;路堤不均勻沉降對拼接路面的影響研究[J];公路交通科技(應(yīng)用技術(shù)版);2007年04期

10 趙冬泉;王浩正;王浩昌;王婧;陳吉寧;;數(shù)字排水用于管網(wǎng)升級改造設(shè)計與評估[J];給水排水動態(tài);2008年05期

相關(guān)博士學位論文 前5條

1 王霆;地鐵淺埋暗挖法施工對鄰近管線的影響與控制[D];北京交通大學;2009年

2 安永林;結(jié)合鄰近結(jié)構(gòu)物變形控制的隧道施工風險評估研究[D];中南大學;2009年

3 姚宣德;淺埋暗挖法城市隧道及地下工程施工風險分析與評估[D];北京交通大學;2009年

4 于景洋;長距離輸水管線安全運行的水力過渡過程研究[D];哈爾濱工業(yè)大學;2010年

5 王婧;珠海軟土固結(jié)性質(zhì)的宏微觀試驗及機理分析[D];華南理工大學;2013年

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