工程爆破

2010, v.16;No.62(04) 18-21+43

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爆破振动在混凝土与软土结构中传播差异性研究
STUDY ON PROPAGATIONAL DIFFERENCE OF BLASTING VIBRATION IN CONCRETE AND SOFT SOIL

李福清,王祺,马宏昊,王臻华,翁清,刘振翼
LI Fu-qing1,WANG Qi1,MA Hong-hao2,WANG Zhen-hua1,WENG Qing3,LIU Zhen-yi1(1.Shanghai Tunneling Engineering Co.

摘要(Abstract):

研究内容是爆破振动在不同介质中的传播差异性。从理论角度对比研究了爆破振动在混凝土和软土中传播的主要特点及造成二者差异性的主要原因;指出混凝土介质中爆破振动速度主要分布在平面法线方向,软土介质中爆破振动速度主要分布在其平面上;并结合工程监测实践对分析结果作了进一步分析验证。本文结论对监测不同介质中的振动速度具有一定指导意义。
Difference of blasting vibration in different mediums was researched.Main characteristic of blasting vibration in concrete and soft soil was contrastively studied in theory and main reason causing difference of blasting vibration in concrete and soft soil was also analyzed in theory.The results indicated that velocity of blasting vibration in concrete was mainly perpendicular to horizontal plane and velocity of blasting vibration in soft soil was mainly in horizontal plane.The conclusion was also confirmed by monitoring velocity of blasting vibration for the project.It has a certain guiding significance for monitoring blasting vibration in different mediums.

关键词(KeyWords): 基坑;爆破振动;特征振动速度;振动监测
Foundation pit;Blasting vibration;Characteristic vibration velocity;Monitoring vibration

Abstract:

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作者(Author): 李福清,王祺,马宏昊,王臻华,翁清,刘振翼
LI Fu-qing1,WANG Qi1,MA Hong-hao2,WANG Zhen-hua1,WENG Qing3,LIU Zhen-yi1(1.Shanghai Tunneling Engineering Co.

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