【摘要】：近年來,在石油鉆井大提速,川渝地區(qū)鉆前工程所要求工期逐年縮短的大背景下,以傳統(tǒng)的地方材料砌筑或混凝土傳統(tǒng)工藝澆筑橋涵,由于傳統(tǒng)工藝中砌筑材料和工匠的匱乏,支模、鋼筋綁扎、混凝土澆筑以及養(yǎng)護(hù)等工序較多,多作業(yè)面交叉,工種和機(jī)具設(shè)備多,導(dǎo)致施工工期較長(zhǎng)的情況已不能滿足業(yè)主對(duì)鉆前工程施工工期日益縮短的要求。筆者以減少大型吊裝設(shè)備及縮短鉆前工程建設(shè)工期為目標(biāo),結(jié)合混凝土自凝結(jié)技術(shù)與模塊化拼裝技術(shù)提出全裝配式短跨度橋梁快速施工方法。本文將研究?jī)?nèi)容分為四個(gè)部分：第一,對(duì)鉆前工程短跨橋梁設(shè)計(jì)方案擬定和分析,結(jié)合西南地區(qū)鉆前工程特殊的施工環(huán)境提出具體的設(shè)計(jì)施工方法。第二,由于鉆井工程設(shè)備自重大,鉆前工程重載車輛較多,重新定位鉆前工程短跨度橋梁上部荷載,結(jié)合現(xiàn)有裝配式橋梁上部結(jié)構(gòu)圖集對(duì)裝配式橋梁上部結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計(jì)。并以一座跨徑為8m的預(yù)制空心板簡(jiǎn)支梁橋設(shè)計(jì)為依托,證明了優(yōu)化設(shè)計(jì)的可靠性與經(jīng)濟(jì)性。第三,基于橋梁上部結(jié)構(gòu)設(shè)計(jì),提出一種全裝配式墩臺(tái)塊型設(shè)計(jì),并對(duì)其進(jìn)行性能分析。第四,對(duì)山區(qū)橋梁復(fù)雜工程地質(zhì)條件下的基礎(chǔ)設(shè)計(jì)進(jìn)行了分析和研究,提出混凝土自凝結(jié)基礎(chǔ)設(shè)計(jì)施工方法。本文將西南地區(qū)鉆前工程橋梁設(shè)計(jì)分為上部設(shè)計(jì)、下部設(shè)計(jì)以及基礎(chǔ)三方面,結(jié)合混凝土自凝結(jié)技術(shù)與模塊化拼裝技術(shù)提出全裝配式短跨度橋梁快速施工方法,為鉆前工程短跨度裝配式橋梁設(shè)計(jì)及施工方法提供經(jīng)驗(yàn)參考,具有重要的現(xiàn)實(shí)意義。
[Abstract]:In recent years, under the background of increasing the speed of oil drilling and shortening the construction period required by pre-drilling projects in Sichuan and Chongqing areas, traditional local materials or traditional concrete techniques are used to build bridges and culverts, because of the shortage of masonry materials and craftsmen in traditional techniques. There are many working procedures, such as formwork, steel bar binding, concrete pouring and maintenance, and so on, many working surfaces are crossed, and there are many types of work and machinery and equipment. As a result, the long construction period can not meet the requirements of the owner for shortening the construction period of the pre-drilling project. In order to reduce the large lifting equipment and shorten the construction period of pre-drilling project, the author puts forward the rapid construction method of fully assembled short-span bridge with the combination of concrete self-condensation technology and modular assembly technology. This paper divides the research contents into four parts: first, the design scheme of short span bridge of pre-drilling project is drawn up and analyzed, and the concrete design and construction method is put forward in combination with the special construction environment of the pre-drilling project in southwest China. Second, because of the self-important drilling engineering equipment, there are more heavy vehicles in pre-drilling engineering, so the upper load of short-span bridge in pre-drilling engineering is reoriented, and the superstructure of prefabricated bridge is optimized by combining with the map set of existing prefabricated bridge superstructure. Based on the design of a prefabricated hollow slab bridge with span of 8 m, the reliability and economy of the optimal design are proved. Thirdly, based on the design of bridge superstructure, a fully assembled pier and abutment block design is proposed and its performance is analyzed. Fourthly, the foundation design of bridges in mountainous area under complex engineering geological conditions is analyzed and studied, and the design and construction method of concrete self-condensation foundation is put forward. In this paper, the bridge design of pre-drilling project in southwest China is divided into three aspects: upper design, lower design and foundation design. Combined with concrete self-condensation technology and modular assembly technology, the fast construction method of fully assembled short-span bridge is put forward. It is of great practical significance to provide experience for the design and construction method of short span assembled bridge before drilling.
【學(xué)位授予單位】：西南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U442.5;TE2

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本文編號(hào)：2250959