Application scope and construction parameter optimization of full lateral blast compaction rapid embankment construction technology
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Abstract:
The current specifications of blast compaction are mostly applicable to small-section blasting at the end,the application scope and construction parameters can not meet the requirements of large section embankment,high efficiency and short construction period.To solve the problems,this paper researches on the full lateral blast compaction rapid embankment construction technology.By direct filling to form temporary revetment and full lateral blast filling rapid embankment construction technology,the scope of the specification can be expanded. By optimizing the construction parameters through field tests,the limits of minimum single consumption and embedment depth of blasting compaction are proposed to break through the specification requirements.The results show that the method is suitable for the embankment with the width of section larger than 30 m and the depth of the underlying silt layer is 5-18 m,the best effect is achieved for the treatment of the silt thickness of 10-15 m,the charge required for unit volume of blast compaction can be as low as 0.23 kg/m3,and the elevation of the charge embedding can reach the position 1/3 of the thickness from the silt bottom.
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YANG Feng, LIU Li, LI Han-xuan. Application scope and construction parameter optimization of full lateral blast compaction rapid embankment construction technology[J]. Port & Waterway Engineering,2022(9):210-214.