【摘要】：隨著國(guó)內(nèi)地鐵工程建設(shè)規(guī)模的不斷擴(kuò)大,地鐵施工過程中引發(fā)的各類安全事故引起了社會(huì)各界廣泛的關(guān)注,地鐵建設(shè)的總體安全形勢(shì)不容樂觀,南昌地鐵施工過程中采用盾構(gòu)法掘進(jìn)施工存在較多的施工風(fēng)險(xiǎn)。本文立足于南昌地鐵的建設(shè)實(shí)際,依托南昌地區(qū)富水砂卵石地層地鐵工程施工安全關(guān)鍵技術(shù)研究項(xiàng)目背景,在南昌軌道交通1號(hào)線土建六標(biāo)段工程建設(shè)過程中,為應(yīng)對(duì)施工風(fēng)險(xiǎn)避免安全事故,對(duì)地鐵掘進(jìn)施工有關(guān)安全控制的掘進(jìn)技術(shù)進(jìn)行了研究和總結(jié),主要研究?jī)?nèi)容如下：1、依據(jù)盾構(gòu)機(jī)類型的地層適應(yīng)條件和南昌軌道交通1號(hào)線土建六標(biāo)工程項(xiàng)目具體的水文地質(zhì)情況確定了本項(xiàng)目的盾構(gòu)機(jī)類型和參數(shù)配置以及針對(duì)盾構(gòu)機(jī)刀盤刀具進(jìn)行了適應(yīng)性設(shè)計(jì)。2、根據(jù)地質(zhì)條件,對(duì)盾構(gòu)機(jī)主要技術(shù)參數(shù)進(jìn)行了驗(yàn)算,并與盾構(gòu)機(jī)原設(shè)計(jì)的額定參數(shù)進(jìn)行比較,以確認(rèn)盾構(gòu)選型的正確性及適應(yīng)性。3、通過分析掘進(jìn)過程中的施工難點(diǎn),為應(yīng)對(duì)施工難點(diǎn)問題提出了具有自主知識(shí)產(chǎn)權(quán)的保壓泵出渣技術(shù)、二次注漿技術(shù)和高分子聚合物注入系統(tǒng)技術(shù),并對(duì)此類有關(guān)掘進(jìn)施工安全控制的關(guān)鍵技術(shù)進(jìn)行了系統(tǒng)的研究和總結(jié)。4、結(jié)合實(shí)際工程案例,對(duì)環(huán)境敏感區(qū)江西省人大常委會(huì)沿線段的左右線主要掘進(jìn)參數(shù)統(tǒng)計(jì)分析,通過數(shù)據(jù)對(duì)比分析得出左線事故產(chǎn)生原因,并提出應(yīng)對(duì)措施以防止事故的再次發(fā)生,同時(shí)提出有利于掘進(jìn)施工安全的主要掘進(jìn)參數(shù)合理控制范圍以及就掘進(jìn)施工關(guān)鍵技術(shù)在工程實(shí)體上的運(yùn)用控制效果進(jìn)行了驗(yàn)證,掘進(jìn)施工技術(shù)可供后續(xù)待建工程參考和借鑒。
[Abstract]:With the continuous expansion of the scale of subway construction in China, all kinds of safety accidents caused by subway construction have aroused widespread concern from all walks of life in society, and the overall safety situation of subway construction is not optimistic. There are many construction risks in Nanchang subway construction by shield method. Based on the construction practice of Nanchang metro, this paper relies on the background of the key technology research project of subway construction in the water-rich sand-pebble stratum in Nanchang area, and during the construction of the sixth civil construction section of Nanchang Rail Transit Line 1, In order to deal with the construction risk and avoid safety accidents, the excavation technology of safety control in subway excavation construction is studied and summarized. The main research contents are as follows: 1. According to the stratum adaptation conditions of shield machine type and the specific hydrogeological conditions of the sixth civil engineering project of Nanchang Rail Transit Line 1, the type and parameter configuration of shield machine and the cutter feed for shield machine are determined. Okay, adaptive design. 2, According to the geological conditions, the main technical parameters of the shield machine are checked and calculated, and compared with the rated parameters of the original design of the shield machine, in order to confirm the correctness and adaptability of the shield machine selection. 3, by analyzing the construction difficulties in the excavation process, In order to deal with the difficult problems in construction, the technology of holding pressure pump slag removal, secondary grouting technology and polymer injection system technology with independent intellectual property rights are put forward. The key technologies of safety control in tunneling construction are systematically studied and summarized. 4. Combined with practical engineering cases, the main driving parameters of the left and right lines along the line of Jiangxi Provincial people's Congress standing Committee in the environment sensitive area are statistically analyzed. Through the comparative analysis of the data, the causes of the left line accident are obtained, and the countermeasures are put forward to prevent the recurrence of the accident. At the same time, the reasonable control range of the main tunneling parameters which is beneficial to the safety of tunneling construction and the application control effect of the key technology of tunneling construction on the engineering entity are verified. The excavation construction technology can be used for reference and reference in the subsequent construction projects.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U455.43

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本文編號(hào)：2474241