本文選題：城際軌道 + 隧道施工�。� 參考：《石家莊鐵道大學》2015年碩士論文

【摘要】：目前,全國有三十多個城市已經(jīng)獲批修建地鐵,我國修建城際軌道暗挖隧道的最重要、最普遍的施工方法是礦山法。如何能安全、經(jīng)濟的使用礦山法施工,順利通過淺埋及居民區(qū)是一個施工企業(yè)施工水平的重要標志。尤其是洞內(nèi)止水技術(shù)近年來發(fā)展十分迅速,出現(xiàn)了WSS等眾多新工藝、新技術(shù)。因此,研究礦山法施工技術(shù)的創(chuàng)新,意義非常重大。本文依托“莞惠城際軌道穿越城區(qū)淺埋暗挖隧道施工技術(shù)的研究(J10-05B)”項目,根據(jù)現(xiàn)場及其復雜的工程地質(zhì)及水文地質(zhì)條件,取得各類信息資料及調(diào)研資料,對淺埋暗挖穿越城區(qū)道路、老齡淺基房屋、地表沉降控制、地下管線保護及周邊環(huán)境保護等進行了全面的分析總結(jié)研究,完成相關(guān)研究項目。本文的主要研究內(nèi)容和成果包括以下幾個方面。(1)根據(jù)現(xiàn)場地質(zhì)情況變化,勘察工程地質(zhì),查明各類工程地質(zhì)性質(zhì),有利于對不同地質(zhì)條件選擇不同施工工法提供判斷依據(jù)。掌握在不同地質(zhì)環(huán)境、不同地面條件下及時調(diào)整工法步距。掌握超前支護的作用及施工方法。(2)優(yōu)化施工工藝,將CD法優(yōu)化為上CD下臺階法,增設(shè)臨時仰拱,防止隧道收斂變形,縮短工法步距,先成小環(huán),然后逐步整體成環(huán)。解決了地表沉降大、房屋裂縫、管線破壞、初支侵限等難題,將施工引起的地面沉降和隆起控制在環(huán)境條件允許的范圍以內(nèi),確保建筑物基礎(chǔ)和地下管線安全使用,確保城區(qū)道路安全通行,保障沿線居民正常生活。(3)由于地質(zhì)結(jié)構(gòu)差,地下水豐富,易產(chǎn)生沉降,全斷面注漿可有效減少圍巖變形,確保隧道安全及道路行車安全。通過全斷面注雙液漿,熟練掌握了注漿技術(shù),分析不同地質(zhì)條件下選用不同注漿材料和注漿設(shè)備,達到方便施工,經(jīng)濟高效的目的,為以后類似工程提供施工經(jīng)驗。(4)優(yōu)化雙液漿材料,采用氯化鈣及水玻璃的化學反應,快速止水,節(jié)省注漿材料。
[Abstract]:At present, more than 30 cities in China have been approved to build subway, the most important and the most common construction method is mine method. How to use mine method safely and economically and pass through shallow burying and residential area is an important sign of construction level of a construction enterprise. Especially in recent years, the watertight technology in the tunnel has developed rapidly, and many new technologies, such as WSS, have emerged. Therefore, it is of great significance to study the innovation of mine construction technology. Based on the project of "Guanghui Intercity Rail Crossing shallow Underground Tunnel Construction Technology (J10-05B)", according to the site and its complicated engineering geology and hydrogeological conditions, various kinds of information and investigation materials are obtained. In this paper, comprehensive analysis and research are carried out on the subsurface excavated road through the urban area, the aging shallow foundation house, the surface subsidence control, the underground pipeline protection and the surrounding environmental protection, and the related research projects are completed. The main research contents and achievements of this paper include the following aspects: 1) according to the change of the field geological conditions, the investigation of engineering geology and the identification of various engineering geological properties will be helpful to provide a basis for judging the selection of different construction methods for different geological conditions. Master in different geological environment, different surface conditions to adjust the pace of construction method. Master the function of advance support and construction method. 2) optimize construction technology, optimize CD method into upper CD step method, add temporary inverted arch, prevent tunnel convergent deformation, shorten step distance of construction method, first form small ring, then gradually form whole ring. It solves the problems of large ground subsidence, building cracks, pipeline damage, initial support invasion and so on, and controls the ground subsidence and uplift caused by construction within the scope of environmental conditions, so as to ensure the safe use of building foundation and underground pipeline. Because of the poor geological structure, abundant groundwater and easy settlement, the whole section grouting can effectively reduce the surrounding rock deformation and ensure the tunnel safety and road safety. Through the full section injection of double liquid slurry, the grouting technology is skillfully mastered, and the selection of different grouting materials and grouting equipment under different geological conditions is analyzed, so as to achieve the purpose of convenient construction, economy and efficiency. To provide construction experience for similar projects in the future) to optimize the double liquid slurry materials, adopt the chemical reaction of calcium chloride and water glass, quickly stop water and save grouting materials.
【學位授予單位】：石家莊鐵道大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U455.4

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