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A platform for research: civil engineering, architecture and urbanism
Lock catch steel pipe pile cofferdam structure and construction method thereof
A lock catch steel pipe pile cofferdam structure is in a structural form of a double-spliced H700 * 300 profile steel enclosing purlin, a three-spliced H700 * 300 profile steel enclosing purlin and an inner support, and phi 200 * 10 mm steel pipes and I20b I-shaped steel are arranged between steel pipe piles to form a water stop structure. The construction method of the lock catch steel pipe pile cofferdam structure comprises the following steps that construction preparation is conducted; blasting construction of an underwater foundation pit of the main tower; guide hole construction; inserting and driving steel pipe piles; grouting the base; mounting an inner support; excavating a foundation pit; lock catch water leakage treatment; sealing the bottom of the cofferdam, and erecting a steel casing and a steel pipe pile; recharging and removing the inclined strut; erecting a steel platform and a construction pile foundation; water pumping, diagonal bracing recovery and bearing platform construction; foundation pit edge protection and upper and lower channel arrangement; and the lock catch steel pipe pile cofferdam is dismantled. The structure performance is safe and reliable, and the safety risk is low; the construction difficulty and cost can be reduced, and the working efficiency is improved.
一种锁扣钢管桩围堰结构，为双拼H700*300型钢围檩、三拼H700*300型钢围檩和内支撑的结构形式，钢管桩间设置φ200×10mm钢管和I20b工字钢形成止水结构。该锁扣钢管桩围堰结构的施工方法，包括以下步骤：施工准备；主塔水下基坑爆破施工；引孔施工；钢管桩插打；基底注浆；内支撑安装；基坑开挖；锁扣渗漏水处理；围堰封底、钢护筒及钢管桩架设；回灌及拆除斜撑；搭设钢平台及施工桩基础；抽水、斜撑恢复及承台施工；基坑临边防护及上下通道设置；锁扣钢管桩围堰拆除。本发明结构性能安全可靠，安全风险低；可降低施工难度和成本，提升工作效率。
Lock catch steel pipe pile cofferdam structure and construction method thereof
A lock catch steel pipe pile cofferdam structure is in a structural form of a double-spliced H700 * 300 profile steel enclosing purlin, a three-spliced H700 * 300 profile steel enclosing purlin and an inner support, and phi 200 * 10 mm steel pipes and I20b I-shaped steel are arranged between steel pipe piles to form a water stop structure. The construction method of the lock catch steel pipe pile cofferdam structure comprises the following steps that construction preparation is conducted; blasting construction of an underwater foundation pit of the main tower; guide hole construction; inserting and driving steel pipe piles; grouting the base; mounting an inner support; excavating a foundation pit; lock catch water leakage treatment; sealing the bottom of the cofferdam, and erecting a steel casing and a steel pipe pile; recharging and removing the inclined strut; erecting a steel platform and a construction pile foundation; water pumping, diagonal bracing recovery and bearing platform construction; foundation pit edge protection and upper and lower channel arrangement; and the lock catch steel pipe pile cofferdam is dismantled. The structure performance is safe and reliable, and the safety risk is low; the construction difficulty and cost can be reduced, and the working efficiency is improved.
一种锁扣钢管桩围堰结构，为双拼H700*300型钢围檩、三拼H700*300型钢围檩和内支撑的结构形式，钢管桩间设置φ200×10mm钢管和I20b工字钢形成止水结构。该锁扣钢管桩围堰结构的施工方法，包括以下步骤：施工准备；主塔水下基坑爆破施工；引孔施工；钢管桩插打；基底注浆；内支撑安装；基坑开挖；锁扣渗漏水处理；围堰封底、钢护筒及钢管桩架设；回灌及拆除斜撑；搭设钢平台及施工桩基础；抽水、斜撑恢复及承台施工；基坑临边防护及上下通道设置；锁扣钢管桩围堰拆除。本发明结构性能安全可靠，安全风险低；可降低施工难度和成本，提升工作效率。
Lock catch steel pipe pile cofferdam structure and construction method thereof
一种锁扣钢管桩围堰结构及其施工方法
WANG HAIPING (author) / HUANG JIANQIU (author) / XIN WENHAI (author) / ZHANG QUAN (author) / XIANG ZHENGHUA (author) / WU GANG (author) / LIU YUNLONG (author) / LING TAO (author) / TANG YU (author) / PENG XUEJUN (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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