【摘要】：地鐵作為一種綠色交通模式,能很好的解決城市交通擁堵和環(huán)境污染等問題,是城市發(fā)展過程中踐行“可持續(xù)發(fā)展觀”的重要環(huán)節(jié)。綠色施工以“四節(jié)一環(huán)�！睘槟繕�,在貫徹國家、行業(yè)和地方的相關(guān)政策,滿足建筑物相關(guān)功能的前提下,因地制宜,最大限度的節(jié)約資源,降低能耗,減少施工過程中對環(huán)境、資源產(chǎn)生的負面影響。將“可持續(xù)發(fā)展”理念延伸到地鐵的建造過程中,對地鐵進行“綠色建造”,實現(xiàn)地鐵建設(shè)的“四節(jié)一環(huán)�！�,這種以綜合效益最大化為目標的建造模式也是地鐵建設(shè)的必然趨勢。由于地質(zhì)條件和周邊環(huán)境的復(fù)雜性及難預(yù)見性,地鐵隧道盾構(gòu)施工是地鐵建造過程中難度最大、危險系數(shù)最高且資源消耗最多的單位工程之一。依托江西省科技支撐計劃項目《南昌地鐵土壓盾構(gòu)施工安全及環(huán)境保護關(guān)鍵技術(shù)研究》,在基于保證工程質(zhì)量、安全的前提下,將地鐵盾構(gòu)掘進施工特點與綠色施工要求相結(jié)合,探討綠色施工技術(shù)在工程中的具體應(yīng)用。1、在盾構(gòu)施工中,合理的盾構(gòu)選型是進行綠色施工的前提,將綠色施工理念引入到本工程盾構(gòu)選型中,從而確定本工程采用土壓平衡盾構(gòu)法施工；通過對渣土改良系統(tǒng)進行優(yōu)化及采用保壓泵裝置(由拖式混凝土泵優(yōu)化改裝而成)出渣技術(shù),以解決土壓平衡盾構(gòu)在富水砂(卵)礫地層施工時難以有效控制噴涌的難題,保證盾構(gòu)施工的安全,取得了顯著的經(jīng)濟效益。2、依據(jù)南昌地鐵1號線某標段的工程數(shù)據(jù),針對土壓平衡盾構(gòu)施工中的綠色施工因素進行了分析,指出了本工程各種資源消耗的特點及對環(huán)境的主要影響因素；引入價值工程理論,確定了隧道土體開挖、盾構(gòu)推進和同步注漿三個功能應(yīng)作為進行技術(shù)優(yōu)化的重點研究對象。3、基于價值分析結(jié)果,結(jié)合工程實際進行綠色施工技術(shù)應(yīng)用、創(chuàng)新；對盾構(gòu)刀具修復(fù)及保護刀再制造技術(shù)、同步射流泥餅防治技術(shù)和施工廢水循環(huán)利用技術(shù)進行了應(yīng)用分析。結(jié)果表明在盾構(gòu)施工中采用綠色施工技術(shù)能顯著的提高施工效率,降低能耗,有效規(guī)避工程風險,進而實現(xiàn)工程“四節(jié)一環(huán)�！钡哪繕�。
[Abstract]:As a green traffic mode, subway can solve the problems of urban traffic congestion and environmental pollution. It is an important link in the process of urban development to practice the concept of sustainable development. Green construction takes "four sections and one environmental protection" as the goal, under the premise of carrying out the relevant policies of the country, industry and local to satisfy the related functions of the buildings, it can save resources and reduce energy consumption to the maximum extent according to the local conditions. Reduce the negative impact on environment and resources during construction. The concept of "sustainable development" is extended to the process of subway construction, and "green construction" is carried out to realize the "four sections and one environmental protection" of subway construction. This kind of construction mode aiming at maximization of comprehensive benefit is also the inevitable trend of subway construction. Due to the complexity and unpredictability of geological conditions and surrounding environment, shield tunneling is one of the most difficult, dangerous and resource consuming unit projects in subway construction. Based on Jiangxi Province Science and Technology support Project < study on the key Technologies of Construction Safety and Environmental Protection of Nanchang Metro Earth pressure Shield Machine, based on the guarantee of engineering quality and safety, the construction characteristics of subway shield tunneling are combined with the green construction requirements. This paper discusses the concrete application of green construction technology in engineering. In shield construction, reasonable shield type selection is the premise of green construction. The concept of green construction is introduced into the shield type selection of this project. It is determined that the construction of the project is based on the earth pressure balance shield method, and through the optimization of the residual soil improvement system and the adoption of the pressure retaining pump device (modified by the optimized modification of the towed concrete pump), In order to solve the problem that it is difficult for earth pressure balance shield to control the gush effectively in the construction of water-rich sand (egg) gravel stratum, and to ensure the safety of shield construction, remarkable economic benefit is obtained. According to the engineering data of a certain section of Nanchang Metro Line 1, This paper analyzes the green construction factors in the construction of earth pressure balance shield, points out the characteristics of various resource consumption and the main influencing factors on the environment of the project, and introduces the theory of value engineering to determine the excavation of the tunnel soil. The three functions of shield tunneling and synchronous grouting should be regarded as the key research object of technical optimization. Based on the results of value analysis, the green construction technology should be applied and innovated in combination with the engineering practice. The application of synchronous jet mud cake prevention technology and construction wastewater recycling technology was analyzed. The results show that green construction technology can significantly improve construction efficiency, reduce energy consumption, effectively avoid engineering risks, and achieve the goal of "four sections and one environmental protection" in shield construction.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U455.43;U231.3

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