Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deepwater foundation construction method for double-wall steel cofferdam without bottoming under deepwater rock entering condition
The invention relates to a deepwater foundation construction method for a double-wall steel cofferdam without bottoming under a deepwater rock entering condition. A groove is formed in advance in a rock stratum riverbed, the double-wall steel cofferdam is put into the groove, then concrete is poured, and the double-wall steel cofferdam is solidified with the riverbed in the groove by pouring the concrete; and after the double-wall steel cofferdam is in place, no bottoming concrete exists in the cofferdam, and foundation cleaning is conducted through a machine after water pumping is completed. The deepwater foundation construction method specifically comprises the following steps of (1) constructing a pile foundation; (2) guiding a groove by a rotary drilling machine; (3) mounting and assembling a bracket; (4) assembling the double-wall steel cofferdam; (5) installing a putting system; (6) putting the double-wall steel cofferdam; (7) pouring concrete into the groove; (8) pumping water; and (9) cleaning the foundation. The deepwater foundation construction method has the advantages of short construction period, safety, reliability, environment friendliness in construction, economy and reasonability under the conditions that the riverbed geology is hard and no bottoming concrete exists in the cofferdam, meets the quality requirement and belongs to the technical field of deepwater foundation construction of large bridges.
本发明涉及一种深水入岩条件下无封底双壁钢围堰深水基础施工方法，在岩层质河床上预成槽，双壁钢围堰下放至槽内后灌注混凝土，双壁钢围堰在槽内通过浇筑混凝土与河床固结；双壁钢围堰就位后，围堰内无封底混凝土，抽水完成后采用机械进行清基。具体包括如下步骤：(1)桩基施工；(2)旋挖机引槽；(3)安装拼装支架；(4)双壁钢围堰拼装；(5)安装下放系统；(6)双壁钢围堰下放；(7)槽内浇筑混凝土；(8)抽水；(9)清基。本发明在河床地质坚硬、围堰内无封底混凝土条件下提供了一种工期短、安全可靠、施工环保、经济合理且质量满足要求，属于大型桥梁的深水基础施工技术领域。
Deepwater foundation construction method for double-wall steel cofferdam without bottoming under deepwater rock entering condition
The invention relates to a deepwater foundation construction method for a double-wall steel cofferdam without bottoming under a deepwater rock entering condition. A groove is formed in advance in a rock stratum riverbed, the double-wall steel cofferdam is put into the groove, then concrete is poured, and the double-wall steel cofferdam is solidified with the riverbed in the groove by pouring the concrete; and after the double-wall steel cofferdam is in place, no bottoming concrete exists in the cofferdam, and foundation cleaning is conducted through a machine after water pumping is completed. The deepwater foundation construction method specifically comprises the following steps of (1) constructing a pile foundation; (2) guiding a groove by a rotary drilling machine; (3) mounting and assembling a bracket; (4) assembling the double-wall steel cofferdam; (5) installing a putting system; (6) putting the double-wall steel cofferdam; (7) pouring concrete into the groove; (8) pumping water; and (9) cleaning the foundation. The deepwater foundation construction method has the advantages of short construction period, safety, reliability, environment friendliness in construction, economy and reasonability under the conditions that the riverbed geology is hard and no bottoming concrete exists in the cofferdam, meets the quality requirement and belongs to the technical field of deepwater foundation construction of large bridges.
本发明涉及一种深水入岩条件下无封底双壁钢围堰深水基础施工方法，在岩层质河床上预成槽，双壁钢围堰下放至槽内后灌注混凝土，双壁钢围堰在槽内通过浇筑混凝土与河床固结；双壁钢围堰就位后，围堰内无封底混凝土，抽水完成后采用机械进行清基。具体包括如下步骤：(1)桩基施工；(2)旋挖机引槽；(3)安装拼装支架；(4)双壁钢围堰拼装；(5)安装下放系统；(6)双壁钢围堰下放；(7)槽内浇筑混凝土；(8)抽水；(9)清基。本发明在河床地质坚硬、围堰内无封底混凝土条件下提供了一种工期短、安全可靠、施工环保、经济合理且质量满足要求，属于大型桥梁的深水基础施工技术领域。
Deepwater foundation construction method for double-wall steel cofferdam without bottoming under deepwater rock entering condition
一种深水入岩条件下无封底双壁钢围堰深水基础施工方法
LIU XINWEI (Autor:in) / SHOU JING (Autor:in) / XU HONGZUO (Autor:in) / OUYANG JIPING (Autor:in) / XU ZHEHUI (Autor:in) / WANG GANG (Autor:in) / WANG CONG (Autor:in) / HUANG QINGHE (Autor:in) / OU JIALIN (Autor:in) / WANG WEI (Autor:in)
26.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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