Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Land open caisson construction process
The invention discloses a land open caisson construction technology, and relates to the technical field of buildings. The construction technology comprises the following steps that S1, foundation replacement and filling are conducted, specifically, the excavation depth of the open caisson is determined, and a gravel replacement and filling reinforcing method is adopted to conduct reinforcing treatment on a surface soft layer; s2, steel shell concrete construction, specifically, concrete is symmetrically cast in the steel shell open caisson, and after construction of the first section of steel shell concrete is completed, the second section of reinforced concrete and the third section of reinforced concrete are sequentially and symmetrically constructed and heightened; s3, primary dewatering and drainage sinking: after the concrete of the well wall reaches the design strength, taking soil and sinking to a preset elevation by adopting a dewatering and drainage sinking process, and continuously dewatering the outer tube well of the open caisson in the sinking process, so that the underground water level in the open caisson is lower than the excavated soil surface by a certain distance; s4, second-stage heightening: sequentially and symmetrically constructing and heightening 4, 5 and 6 sections of well walls; and S5, secondary non-drainage sinking is conducted, specifically, after the well bore concrete reaches the design strength, the non-drainage sinking technology is adopted for earth cutting sinking, and sinking reaches the design elevation. The foundation bearing capacity can be improved, and the stability of the open caisson is fully guaranteed.
本发明公开了一种陆地沉井施工工艺，涉及建筑技术领域。所述施工工艺包括如下步骤：S1地基换填：确定沉井开挖深度，采用砂石换填加固法对地表软弱层进行加固处理；S2钢壳砼施工：在钢壳沉井内对称浇铸混凝土，完成首节钢壳砼施工后，依次对称施工接高2、3节钢筋砼；S3第一次降排水下沉：井壁混凝土达到设计强度后，采用降排水下沉工艺取土下沉至预设标高，下沉过程沉井外管井持续降水，使沉井井内地下水位低于开挖土面一定距离；S4二期接高：依次对称施工接高4、5、6节井壁；S5第二次不排水下沉：井身混凝土达到设计强度后，采用不排水下沉工艺挖土下沉，使下沉达到设计标高。本发明能提高了地基承载力，充分保证沉井的稳定性。
Land open caisson construction process
The invention discloses a land open caisson construction technology, and relates to the technical field of buildings. The construction technology comprises the following steps that S1, foundation replacement and filling are conducted, specifically, the excavation depth of the open caisson is determined, and a gravel replacement and filling reinforcing method is adopted to conduct reinforcing treatment on a surface soft layer; s2, steel shell concrete construction, specifically, concrete is symmetrically cast in the steel shell open caisson, and after construction of the first section of steel shell concrete is completed, the second section of reinforced concrete and the third section of reinforced concrete are sequentially and symmetrically constructed and heightened; s3, primary dewatering and drainage sinking: after the concrete of the well wall reaches the design strength, taking soil and sinking to a preset elevation by adopting a dewatering and drainage sinking process, and continuously dewatering the outer tube well of the open caisson in the sinking process, so that the underground water level in the open caisson is lower than the excavated soil surface by a certain distance; s4, second-stage heightening: sequentially and symmetrically constructing and heightening 4, 5 and 6 sections of well walls; and S5, secondary non-drainage sinking is conducted, specifically, after the well bore concrete reaches the design strength, the non-drainage sinking technology is adopted for earth cutting sinking, and sinking reaches the design elevation. The foundation bearing capacity can be improved, and the stability of the open caisson is fully guaranteed.
本发明公开了一种陆地沉井施工工艺，涉及建筑技术领域。所述施工工艺包括如下步骤：S1地基换填：确定沉井开挖深度，采用砂石换填加固法对地表软弱层进行加固处理；S2钢壳砼施工：在钢壳沉井内对称浇铸混凝土，完成首节钢壳砼施工后，依次对称施工接高2、3节钢筋砼；S3第一次降排水下沉：井壁混凝土达到设计强度后，采用降排水下沉工艺取土下沉至预设标高，下沉过程沉井外管井持续降水，使沉井井内地下水位低于开挖土面一定距离；S4二期接高：依次对称施工接高4、5、6节井壁；S5第二次不排水下沉：井身混凝土达到设计强度后，采用不排水下沉工艺挖土下沉，使下沉达到设计标高。本发明能提高了地基承载力，充分保证沉井的稳定性。
Land open caisson construction process
一种陆地沉井施工工艺
HE CHENGLIN (Autor:in) / WANG PING (Autor:in) / LIU AILIAN (Autor:in) / DONG CHUANZHOU (Autor:in) / XU ZHEN (Autor:in) / ZHANG MANHE (Autor:in) / HUANG MIN (Autor:in) / LIU KAI (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Open caisson construction method and open caisson structure
| Europäisches Patentamt | 2020
Open caisson construction method and open caisson structure
| Europäisches Patentamt | 2023
Open caisson structure and open caisson construction method
| Europäisches Patentamt | 2020
Open caisson construction auxiliary device and open caisson construction method
| Europäisches Patentamt | 2023
Open caisson guiding structure and open caisson construction method
| Europäisches Patentamt | 2024