地下工程近接既有建筑施工風(fēng)險(xiǎn)分析及對(duì)策研究
本文選題:地下工程 切入點(diǎn):近接施工 出處:《哈爾濱工業(yè)大學(xué)》2015年碩士論文
【摘要】:當(dāng)今社會(huì)發(fā)展迅速和人口暴增,導(dǎo)致城市人均用地面積巨幅下降,使得城市建筑擁擠,道路交通堵塞。針對(duì)這一問題,世界各地的大中城市都積極開發(fā)地下空間來解決城市用地困難的這一難題。城市地下工程周邊多數(shù)都被既有建筑或管線所包圍,給地下工程的施工帶來極大的困難,同時(shí)地下工程在施工過程中也對(duì)鄰近既有建筑的安全造成威脅,在地下工程的施工過程中如何保護(hù)周邊的既有建筑是地下工程施工中必須解決的一個(gè)難題。本文利用網(wǎng)絡(luò)層次分析法就地下工程近接施工對(duì)鄰近既有建筑物的風(fēng)險(xiǎn)問題進(jìn)行權(quán)重分析,利用MATLAB編寫網(wǎng)絡(luò)層次分析法程序?qū)Ω鱾(gè)風(fēng)險(xiǎn)因素進(jìn)行風(fēng)險(xiǎn)權(quán)重分析,然后對(duì)各風(fēng)險(xiǎn)因素進(jìn)行風(fēng)險(xiǎn)等級(jí)劃分,對(duì)既有建筑物造成比較大的風(fēng)險(xiǎn)因素提出相應(yīng)的應(yīng)對(duì)策略。本文主要從以下方面著手研究:(1)本文總結(jié)歸納地下工程近接施工對(duì)既有建筑的風(fēng)險(xiǎn)因素,包括人為因素和各種已經(jīng)存在的風(fēng)險(xiǎn)因素,將這些風(fēng)險(xiǎn)因素進(jìn)行分類,構(gòu)建出地下工程近接施工對(duì)既有建筑的安全造成影響的風(fēng)險(xiǎn)決策系統(tǒng);(2)采用網(wǎng)絡(luò)層次分析法來對(duì)各風(fēng)險(xiǎn)因素進(jìn)行等級(jí)劃分,用MATLAB編寫網(wǎng)絡(luò)層次分析法的程序從而使計(jì)算更為高效和準(zhǔn)確;(3)通過問卷調(diào)查的方式得到風(fēng)險(xiǎn)因素的判斷矩陣,將得到的數(shù)據(jù)經(jīng)過網(wǎng)絡(luò)層次分析法的計(jì)算處理后,得到各個(gè)風(fēng)險(xiǎn)因素的對(duì)既有建筑建筑安全影響的權(quán)重;(4)根據(jù)風(fēng)險(xiǎn)因素的權(quán)重,對(duì)各風(fēng)險(xiǎn)因素的影響力作出風(fēng)險(xiǎn)排序,根據(jù)排序結(jié)果,對(duì)于影響較為微弱的風(fēng)險(xiǎn)因素則不予提出對(duì)策;將各個(gè)風(fēng)險(xiǎn)因素劃分等級(jí),針對(duì)影響較大的風(fēng)險(xiǎn)因素提出相應(yīng)的處理對(duì)策。本課題所研究的地下工程近接施工對(duì)鄰近既有建筑物的風(fēng)險(xiǎn)性分析及對(duì)策研究,為今后地下工程近接施工的工程風(fēng)險(xiǎn)分析提供參考依據(jù),也為其他類似的近接工程的施工影響提供了研究分析方法,為提高地下工程近接施工的安全性提供了技術(shù)和理論支持。
[Abstract]:With the rapid development of society and the rapid increase of population, the per capita area of urban land has been greatly reduced, making urban buildings congested and road traffic jams.To solve this problem, large and medium cities all over the world actively develop underground space to solve the difficult problem of urban land use.Most of the urban underground projects are surrounded by existing buildings or pipelines, which bring great difficulties to the construction of underground works, and also pose a threat to the safety of adjacent existing buildings in the process of construction.How to protect the surrounding existing buildings in the construction process of underground engineering is a difficult problem that must be solved in the construction of underground engineering.In this paper, the network analytic hierarchy process (NAHP) is used to analyze the risk of adjacent existing buildings in the near joint construction of underground engineering, and the network AHP program is written by MATLAB to analyze the risk weight of each risk factor.Then the risk factors are divided into different risk levels, and the corresponding countermeasures are put forward for the larger risk factors caused by the existing buildings.This paper mainly studies the following aspects: (1) this paper summarizes and summarizes the risk factors, including human factors and all kinds of existing risk factors, and classifies these risk factors.A risk decision system is constructed, which influences the safety of existing buildings in the near connection construction of underground engineering. The risk factors are classified by network analytic hierarchy process (AHP).The program of network analytic hierarchy process (NAHP) is written by MATLAB to make the calculation more efficient and accurate. The judgment matrix of risk factors is obtained by means of questionnaire, and the obtained data is processed through the calculation of NAHP.According to the weight of the risk factors, the influence of each risk factor on the safety of the existing building is ranked according to the weight of the risk factors, and according to the ranking results,For the weak risk factors, the countermeasures are not put forward, and the corresponding countermeasures are put forward to deal with the risk factors which have a greater impact on the risk factors.In this paper, the risk analysis and countermeasures of the adjacent existing buildings are studied, which provides a reference for the risk analysis of the near joint construction of the underground engineering in the future.It also provides a research and analysis method for the construction impact of other similar near-junction projects, and provides technical and theoretical support for improving the safety of the near-junction construction of underground engineering.
【學(xué)位授予單位】:哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU94;TU714
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