地鐵隧道掘進爆破對人行天橋影響研究
發(fā)布時間:2019-07-04 17:31
【摘要】:以烏魯木齊軌道交通1號線中營工站—小西溝站區(qū)間地鐵隧道工程為研究對象,研究了城市復(fù)雜環(huán)境下區(qū)間隧道掘進爆破設(shè)計和振動監(jiān)測。根據(jù)爆破振動監(jiān)測結(jié)果,分析了隧道上方地表振動傳播規(guī)律以及人行天橋橋墩振動及其頻譜特性,據(jù)此調(diào)整爆破設(shè)計方案、優(yōu)化爆破設(shè)計參數(shù)、改進施工工藝,有效降低了隧道掘進爆破對上方4跨連續(xù)箱梁人行天橋擴大基礎(chǔ)及兩側(cè)建筑物的振動影響,確保地鐵隧道爆破在城市復(fù)雜環(huán)境下施工安全。
[Abstract]:Taking the subway tunnel project between Zhongying Station and Xiaoxigou Station of Urumqi Rail Transit Line 1 as the research object, the blasting design and vibration monitoring of interval tunnel excavation in urban complex environment are studied. According to the monitoring results of blasting vibration, the propagation law of surface vibration above the tunnel and the vibration and spectrum characteristics of the pier of pedestrian overpass are analyzed. According to this, the blasting design scheme is adjusted, the blasting design parameters are optimized, the construction technology is improved, the vibration influence of tunnel excavation blasting on the enlarged foundation of the upper four-span continuous box girder footbridge and the buildings on both sides are effectively reduced, and the construction safety of subway tunnel blasting in the complex urban environment is ensured.
【作者單位】: 北京市政路橋股份有限公司;北京工業(yè)大學(xué)建筑工程學(xué)院;
【基金】:北京市政路橋股份有限公司科技開發(fā)項目 國家自然科學(xué)基金重點項目(12004014201501)
【分類號】:U231.3;U455.6
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本文編號:2510087
[Abstract]:Taking the subway tunnel project between Zhongying Station and Xiaoxigou Station of Urumqi Rail Transit Line 1 as the research object, the blasting design and vibration monitoring of interval tunnel excavation in urban complex environment are studied. According to the monitoring results of blasting vibration, the propagation law of surface vibration above the tunnel and the vibration and spectrum characteristics of the pier of pedestrian overpass are analyzed. According to this, the blasting design scheme is adjusted, the blasting design parameters are optimized, the construction technology is improved, the vibration influence of tunnel excavation blasting on the enlarged foundation of the upper four-span continuous box girder footbridge and the buildings on both sides are effectively reduced, and the construction safety of subway tunnel blasting in the complex urban environment is ensured.
【作者單位】: 北京市政路橋股份有限公司;北京工業(yè)大學(xué)建筑工程學(xué)院;
【基金】:北京市政路橋股份有限公司科技開發(fā)項目 國家自然科學(xué)基金重點項目(12004014201501)
【分類號】:U231.3;U455.6
,
本文編號:2510087
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