Blasting Technology for the Clay Layer within Steel Bozed Cofferdam under 20m Deep Water for Pier of Huaihe River Bridge
Many clay wall blockings had been formed in the processing of the sludge absorbing and discharging at steel cofferdam around and under a support beam for pier cap of Shouyang Huaihe River bridge on He-Huai-Fu expressway, Which can adopt loose blasting. In allusion to the physical and mechanical properties of clay layer and structural characteristics of steel cofferdam etc. Make a blasting plan and parameter to optimize and consummate after the testing explosion. Diver underwater punch holes with high-pressure water jet match with manual drill hole by the artificial revolving drilling tool, highpower waterproofing water-gel explosives, plastic pipe compression charge structure, non-electric detonators initiating, the safety technology measure and so on, while monitoring the effects of blasting vibration, which have achieved a good blasting effect.
steel bozed cofferdam deep water clay layer blasting parameters plastic pipe compression charge structure
LIANG Renqun FU Jugen ZONG Qi
Anhui university of science and technology, Huainan, Anhui, China
国际会议
The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)
大连
英文
476-479
2009-07-01（万方平台首次上网日期，不代表论文的发表时间）