爆破施工对古建筑的振动影响安全研究——以云南省保山市太极桥为例

英文篇名：Vibration Influenced Safety Research on Ancient Architecture by Blasting Construction——A Case Study of the Taiji Bridge of Baoshan City,Yunnan Province
中文刊名：河南科学
英文刊名：Henan Science
作者：马军 ; 栾龙发 ; 李新翰 ; 王建国 ; 李启航
英文作者：Ma Jun ; Luan Longfa ; Li Xinhan ; Wang Jianguo ; Li Qihang ; Faculty of Land and Resource Engineering ; Kunming University of Science and Technology ; School of Mechanics and Civil Engineering ; China University of Mining and Technology(Beijing)
中文关键词：爆破施工 ; 古建筑 ; 振动监测 ; 回归分析 ; HHT变换
英文关键词：blasting construction ; ancient architecture ; vibration monitoring ; regression analysis ; HHT transforms methods
出版日期：2013-09-15
机构：昆明理工大学国土资源工程学院;中国矿业大学(北京)力学与建筑工程学院;
年：2013
期：09
出版单位：河南科学

摘要

以云南省保山市太极桥附近的顶管隧道爆破工程为例,对该桥头爆破振动数据进行监测.参照国内外爆破振动标准,判别该桥的安全程度,对振动数据进行回归分析,得到确保该桥安全的最大段起爆药量.基于HHT变换进行振动信号分析,爆破振动信号在传播过程中频率降低,且低频部分所占能量幅值较大,属爆破振动信号的优势频段,更易对建筑物造成损害.
Taking the pipe-jacking tunnel blasting construction that near the Taiji bridage in Baoshan city,Yunnan Province as an example,we monitored the blasting vibration of the head of bridge. The Taiji bridge vibration influence was evaluated by referenced the domestic and international blasting vibration standards.Regression analysis for the vibration monitoring data was carried out to conclude the maximum segment charge which can make sure the safety of Taiji bridge. The blasting vibration signal was analyzed by HHT transform,it was concluded that the frequency of vibration signal is gradually decreased. With the signal spread,the component part of low frequency contained most account of energy of the signal. The buildings is more likely to be damaged by the lower frequency vibration.

引文

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