Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of erosion-preventing large-diameter bored pile
The invention relates to a construction method of an erosion-preventing large-diameter bored pile. The method is characterized in that in the construction method, a movable large-rigidity guide rack is used to control steel casing perpendicularity, an erosion-preventing protecting layer comprises a lower-layer cement grouting body, a middle-layer film bag sand-filling body and upper-layer stone riprap; the movable large-rigidity guide rack comprises a section steel truss, a pushing adjusting device, a moving guide rail, a movable pulley, a traction device and the like;a sectional machining and a field butt joint is adopted for the sinking process, and the sinking process uses the large-rigidity guide rack to position the steel casing, control the perpendicularity of the steel casing and correct the steel casing; high-pressure grouting is performed in certain depth range of a riverbed through a reserved grouting pipe to form a cement grouting body protecting layer after the bored pile is constructed, and a riprap erosion-preventing layer is constructed after a whole pile group is constructed. By the method, the erosion-preventing large-diameter bored pile can be fast constructed in river sections with rapid flows and severe erosion effects, high construction quality is achieved, and good technological and economic benefits are achieved.
Construction method of erosion-preventing large-diameter bored pile
The invention relates to a construction method of an erosion-preventing large-diameter bored pile. The method is characterized in that in the construction method, a movable large-rigidity guide rack is used to control steel casing perpendicularity, an erosion-preventing protecting layer comprises a lower-layer cement grouting body, a middle-layer film bag sand-filling body and upper-layer stone riprap; the movable large-rigidity guide rack comprises a section steel truss, a pushing adjusting device, a moving guide rail, a movable pulley, a traction device and the like;a sectional machining and a field butt joint is adopted for the sinking process, and the sinking process uses the large-rigidity guide rack to position the steel casing, control the perpendicularity of the steel casing and correct the steel casing; high-pressure grouting is performed in certain depth range of a riverbed through a reserved grouting pipe to form a cement grouting body protecting layer after the bored pile is constructed, and a riprap erosion-preventing layer is constructed after a whole pile group is constructed. By the method, the erosion-preventing large-diameter bored pile can be fast constructed in river sections with rapid flows and severe erosion effects, high construction quality is achieved, and good technological and economic benefits are achieved.
Construction method of erosion-preventing large-diameter bored pile
WANG XINQUAN (Autor:in)
09.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Large-diameter bored pile hard layer construction method
| Europäisches Patentamt | 2022
Design and construction of bored large-diameter pile columns
| Online Contents | 1978
Large-diameter cast-in-situ bored pile and construction method thereof
| Europäisches Patentamt | 2020
Response of Laterally Loaded Large-Diameter Bored Pile Groups
| Online Contents | 2001