本文關(guān)鍵詞：杭金衢高速公路改擴(kuò)建工程設(shè)計(jì)方案研究　出處：《長(zhǎng)安大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 高速公路 拓寬 車(chē)道數(shù)需求分析 方案研究 交通組織

【摘要】：隨著我國(guó)社會(huì)經(jīng)濟(jì)的快速發(fā)展，許多早期建成的高速公路交通量增長(zhǎng)迅速，其中部分路段的交通量已經(jīng)或即將超出道路的最大通行能力。為保證區(qū)域經(jīng)濟(jì)社會(huì)發(fā)展的需要，使區(qū)域內(nèi)的交通運(yùn)輸安全、暢通，對(duì)原有高速公路進(jìn)行改擴(kuò)建是必要的，也是緊迫的。本文以杭金衢高速公路為項(xiàng)目依托，研究了高速公路改擴(kuò)建工程中遇到的一些諸如總體方案、局部方案比選等問(wèn)題。 (1)根據(jù)杭金衢高速公路所在區(qū)域的交通網(wǎng)絡(luò)和高速公路拓寬建設(shè)的特點(diǎn)，對(duì)杭金衢高速公路杭州紅墾樞紐至金華互通段的總體拓寬方案進(jìn)行分析研究，對(duì)新建復(fù)線(xiàn)方案和老路拓寬方案進(jìn)行論述比較，并對(duì)利用老路拓寬方案進(jìn)行多方案比選。最終確定擴(kuò)建總體方案采用雙側(cè)拓寬的方案，局部路段視情況采用單側(cè)拓寬。 (2)對(duì)于高速公路主線(xiàn)橋梁的拓寬，比較了橋梁拼寬的幾種方案，，確定了上部結(jié)構(gòu)連接、下部結(jié)構(gòu)不連接的拼寬方式。對(duì)于橋梁拼寬的施工，對(duì)比分析了兩種建設(shè)方案：便道方案和雙側(cè)超拼方案，并對(duì)不同方案研究了施工期間的交通組織步驟。對(duì)于分離立交的拓寬，提出了兩種方案：老橋拆除重建；老橋兩側(cè)拼寬，下部的地方道路適當(dāng)改造。最終為了考慮地方道路的發(fā)展，選用第一方案。對(duì)于互通立交的拓寬改造，選取一個(gè)互通作為例子，列出了三種方案，最終選擇了主線(xiàn)及匝道能保證標(biāo)準(zhǔn)路基寬度，路基工程量較少，占地較省的方案。最后研究了項(xiàng)目拓寬過(guò)程中對(duì)交通的影響，分析了本項(xiàng)目在進(jìn)行老路雙側(cè)拓寬、橋梁分離雙側(cè)拼寬及部分拆除重建、互通區(qū)的拓寬時(shí)能保證高速公路邊運(yùn)營(yíng)邊施工的可行性。 (3)最后進(jìn)行了高速公路隧道拓寬方案的研究，分析計(jì)算了新嶺隧道的車(chē)道需求數(shù)，并通過(guò)對(duì)新嶺隧道、王市嶺隧道進(jìn)行了拓寬方案的研究，確定了長(zhǎng)公路隧道的加寬車(chē)道數(shù)以及雙側(cè)加寬的方案，確定了淺埋公路短隧道挖除后設(shè)為路基的加寬方案。 論文的方法、結(jié)論對(duì)今后的一些類(lèi)似工程的決策和方案比選提供了可供參考的經(jīng)驗(yàn)和行之有效的方法。
[Abstract]:With the rapid development of our country's social economy, the traffic volume of many early highway has increased rapidly. In order to ensure the need of regional economic and social development, the traffic volume of some sections of the road has or will exceed the maximum capacity of the road. It is necessary and urgent to rebuild and extend the original expressway. Based on the project of Hangjin-qu Expressway, this paper studies some general schemes encountered in the expressway reconstruction and extension project. Partial scheme comparison and other problems. 1) according to the traffic network of Hangzhou Jinqu expressway and the characteristics of highway widening construction, the overall widening scheme between Hangzhou Hongken hub and Jinhua interchange section of Hangzhou Jinqu expressway is analyzed and studied. This paper discusses and compares the new double-line scheme and the old road widening scheme, and compares and selects the multiple schemes using the old road widening scheme. Finally, it determines that the overall extension scheme adopts the bilateral widening scheme. Depending on the situation, the local road sections are widened on one side. 2) for the widening of main bridge of expressway, several schemes of bridge width are compared, and the way of joint of superstructure and non-connection of substructure is determined, and the construction of bridge width is also discussed. This paper compares and analyzes two kinds of construction schemes: the sidewalk scheme and the double-side overmatch scheme, and studies the traffic organization steps during the construction period for different schemes. For widening the separation interchange, two schemes are put forward: old bridge demolition and reconstruction; In order to consider the development of local roads, the first scheme is selected. For the widening and transformation of interchange, an example of interworking is selected. Three schemes are listed, the main line and ramp can guarantee the width of the standard roadbed, the subgrade works are less, and the land occupation is less. Finally, the impact on traffic in the process of project widening is studied. It is analyzed that this project can guarantee the feasibility of highway operation while widening the old road, widening the bridge separating the two sides and partly demolishing and rebuilding, and the widening of the interworking area can ensure the feasibility of the construction while the expressway is running. Finally, the highway tunnel widening scheme is studied, the lane demand of Xinling tunnel is analyzed and calculated, and the widening scheme of Xinling tunnel and Wang Shiling tunnel is studied. The number of widening lanes and the scheme of widening on both sides of the long highway tunnel are determined, and the scheme of widening the roadbed after the excavation of the short tunnel of shallow buried highway is determined. The method and conclusion of this paper can be used as a reference and effective method for decision making and scheme selection of similar projects in the future.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U418.8

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