超厚砂卵石层钢板桩围堰设计与施工.pdf

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2011年2月 施工技术 第40卷第3期 CONSTRUCTION TECHNOLOGY 31 超厚砂卵石层钢板桩围堰设计与施工 张琨,钟启凯2,戴小松2,刘中涛2 (1.中建三局建设工程股份有限公司,湖北武汉430064:2.中建三局工程承包公司,潮北武汉430064) [摇]钢板在桥梁深水基融施工中应用广泛,但是超厚砂卵石层地质钢板桩的猫打和基底的术下 吸带来极大图难,从而限制了钢板拉图的使用花围.以襄树汉江三桥主钢板桩围的施工作为依托,通过 意施工顺序、对铜板桂头进行处理和制作专用引孔设各和吸说机,使上还向题进刃而解,并且偏短工期,障低 成本和施王风险. [关键词]超厚砂卵石层:钢板裤围:工顺序:引孔设鲁:混机 [中图分类号]U445 [立献标识码]A [立章编号J1002-8498(2011)03-0031-04 Design and Construction Technology of Steel Sheet Pile Cofferdam in Over-thick Sand Gravel Layer Zhang Kun' Zhong Qikai2 Dai Xiaosong? Liu Zhongtao2 (1.China Construction Third Engineering Bureau Co.Ltd. Wuhan Hubei 430064 China: 2.General Contraction Company of CCTEB Wuhan Hubei 430064 China) Abstract:Steel sheet pile cofferdam is applied widely in the construction field of the deep-water bridge foundation.However the over-thick gravel layer causes great difficulty to the construction of steel sheet pile and the mud-suction at the bottom of the cofferdam underwater which limits the scope of the adaptability of the steel sheet pile cofferdam.Based on the construction of the steel sheet pile cofferdam in the main pier of the Third Han River Bridge in Xiangfan the above problems have been resolved by changing the sequence of the construction processing the head of the steel sheet pile and making the special pore-Heading equipment and the suction dredge in addition that the construction period is reduced and the construction risk and the cost is decreased. Key words:over-thick sand gravel layer:steel sheet pile cofferda...

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