Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dismantling construction method for bridge underwater structure based on steel sheet pile cofferdam
The invention discloses a dismantling construction method of a bridge underwater structure based on a steel sheet pile cofferdam, which belongs to the field of bridge engineering and comprises the following steps: step S1: driving IV Larsen steel sheet piles around an underwater bearing platform and a pile foundation to form a cofferdam, and smearing butter in a range from the pile top of the occlusion part of the IV Larsen steel sheet piles to the position 1m below the bottom of a riverbed; S2, supporting the periphery of the inner side of the cofferdam in a purlin form through H400 profile steel inclined struts, and middle longitudinal supports and four-corner inclined struts are all H400 profile steel inclined struts; S3, pumping water by using a water pump; S4, before dismantling, arranging two H400 profile steel supports between the enclosing purlin and the underwater bearing platform, and welding a steel plate to each of the two ends of each H400 profile steel support; S5, detaching the pile foundation; and S6, performing bottom cleaning, and making subsequent construction preparation of a project; according to the construction method, the problems of region and water area navigation limitation, environmental protection requirements and certain dangerousness of a blasting method are solved, and meanwhile the problems of dangerousness and unpredictability of traditional underwater operation are solved.
本发明公开了一种基于钢板桩围堰的桥梁水下结构物的拆除施工方法，属于桥梁工程领域，包括以下步骤：步骤S1：在水下承台、桩基周围打入IV拉森钢板桩形成围堰，IV拉森钢板桩咬合部位桩顶至河床底以下1m范围涂抹黄油；步骤S2：围堰内侧四周采用H400型钢斜撑以围檩形式支护，中间纵向支撑及四角斜撑均采用H400型钢斜撑；步骤S3：用抽水机抽水；步骤S4：拆除前，在围檩与水下承台之间设置两道H400型钢支撑，H400型钢支撑两端各焊接一块钢板；步骤S5：拆除桩基；步骤S6：清底，做工程后续施工准备；本发明公开的一种解决了爆破法的地域和水域通航限制、环保要求及一定危险性问题的同时，解决了传统水下作业的危险性、不可预见性问题的施工方法。
Dismantling construction method for bridge underwater structure based on steel sheet pile cofferdam
The invention discloses a dismantling construction method of a bridge underwater structure based on a steel sheet pile cofferdam, which belongs to the field of bridge engineering and comprises the following steps: step S1: driving IV Larsen steel sheet piles around an underwater bearing platform and a pile foundation to form a cofferdam, and smearing butter in a range from the pile top of the occlusion part of the IV Larsen steel sheet piles to the position 1m below the bottom of a riverbed; S2, supporting the periphery of the inner side of the cofferdam in a purlin form through H400 profile steel inclined struts, and middle longitudinal supports and four-corner inclined struts are all H400 profile steel inclined struts; S3, pumping water by using a water pump; S4, before dismantling, arranging two H400 profile steel supports between the enclosing purlin and the underwater bearing platform, and welding a steel plate to each of the two ends of each H400 profile steel support; S5, detaching the pile foundation; and S6, performing bottom cleaning, and making subsequent construction preparation of a project; according to the construction method, the problems of region and water area navigation limitation, environmental protection requirements and certain dangerousness of a blasting method are solved, and meanwhile the problems of dangerousness and unpredictability of traditional underwater operation are solved.
本发明公开了一种基于钢板桩围堰的桥梁水下结构物的拆除施工方法，属于桥梁工程领域，包括以下步骤：步骤S1：在水下承台、桩基周围打入IV拉森钢板桩形成围堰，IV拉森钢板桩咬合部位桩顶至河床底以下1m范围涂抹黄油；步骤S2：围堰内侧四周采用H400型钢斜撑以围檩形式支护，中间纵向支撑及四角斜撑均采用H400型钢斜撑；步骤S3：用抽水机抽水；步骤S4：拆除前，在围檩与水下承台之间设置两道H400型钢支撑，H400型钢支撑两端各焊接一块钢板；步骤S5：拆除桩基；步骤S6：清底，做工程后续施工准备；本发明公开的一种解决了爆破法的地域和水域通航限制、环保要求及一定危险性问题的同时，解决了传统水下作业的危险性、不可预见性问题的施工方法。
Dismantling construction method for bridge underwater structure based on steel sheet pile cofferdam
一种基于钢板桩围堰的桥梁水下结构物的拆除施工方法
WANG XINMING (Autor:in) / WU JIANHUA (Autor:in) / LIN FAZHAN (Autor:in) / WAN CHENGFU (Autor:in) / YAO ZHENGFEI (Autor:in) / HOU JIAHAI (Autor:in) / DENG CHAOYOU (Autor:in) / ZHANG PANHUA (Autor:in)
14.01.2022
Patent
Elektronische Ressource
Chinesisch
Steel sheet pile dismantling device special for cofferdam construction
| Europäisches Patentamt | 2024
Steel sheet pile cofferdam and dismantling method thereof
| Europäisches Patentamt | 2021
Underwater steel sheet pile cofferdam structure and construction method
| Europäisches Patentamt | 2020
Construction method of underwater pile foundation steel sheet pile cofferdam
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022