摘要
通过对龙滩水电站左岸导流洞爆破开挖振动进行观测、分析和处理,得到了该导流洞爆破开挖振动传播衰减经验公式。根据该水电站导流洞的特点,提出了爆破振动破坏标准,由经验公式和破坏标准,得出了该导流洞新浇混凝土支护区爆破安全控制参量。分析了爆破地震的特点,结合该水电站导流洞的爆破实际,建议了该导流洞相应的爆破降震措施。从工程实施的实际效果看,本文的研究成果与结论获得了较好的应用效果,保证了该工程爆破施工的顺利完成。
The blasting vibration of the left spillway tunnel at Longtan Hydropower Station is observed, analyzed and processed. The decay experience formula of the blasting earthquake ground motion is found. According to the features of the spillway tunnel at Longtan Hydropower Station, its damage standards of blasting vibration are established. On the basis of the decay experience formula and damage standards, the blasting safety control parameters of new cast-in-situ concrete of the underground chamber are gained. In the end, in the light of construction characteristics of the spillway tunnel, the control measures of the blasting are proposed. The construction effects of the project indicated that the research achievements of this paper may be well applied in the project, and the blasting of the project was smoothly finished.
出处
《地震工程与工程振动》
CSCD
北大核心
2008年第4期168-172,共5页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(50075010)
关键词
导流洞
爆破振动
测试与控制
spillway tunnel
blasting vibration
test and control
