Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for reducing filling coefficient of pile foundation in deep and thick soil filling area
The invention belongs to the technical field of pile foundations, discloses a method for reducing the filling coefficient of a pile foundation in a deep and thick soil filling area, and solves the problem that the filling coefficient in the deep and thick soil filling area is too large. According to the method, before a reinforcement cage is lowered to a pile hole, the periphery of the reinforcement cage is sleeved with a thermoplastic pipe, the thermoplastic pipe comprises a first section of thermoplastic pipe, a second section of thermoplastic pipe and a third section of thermoplastic pipe which are sequentially connected, the length of the first section of thermoplastic pipe is the same as that of a steel casing of the pile hole, the second section of thermoplastic pipe is in a hollow circular truncated cone shape, so that smooth transition is achieved between the first section of thermoplastic pipe and the third section of thermoplastic pipe, the inner diameter of the first section of thermoplastic pipe is larger than the outer diameter of a reinforcement cage, the outer diameter of the first section of thermoplastic pipe is smaller than the inner diameter of a steel casing, the inner diameter of the third section of thermoplastic pipe is matched with the pile diameter, a plurality of through holes are formed in the circumferential walls of the second section of thermoplastic pipe and the third section of thermoplastic pipe, and after concrete pouring of the reinforcement cage is completed, the thermoplastic pipe is pulled out of the reinforcement cage.
本发明属于桩基技术领域，公开了一种降低深厚填土区桩基充盈系数的方法，解决在深厚填土区由于充盈系数过大的问题。本发明在钢筋笼下放至桩孔之前，在钢筋笼的外围套设热塑管，所述热塑管包括依次连接的第一段热塑管、第二段热塑管和第三段热塑管，所述第一段热塑管的长度与桩孔的钢护筒的长度相同，所述第二段热塑管呈空心的圆台状使得第一段热塑管与第三段热塑管之间平滑过渡，所述第一段热塑管的内径大于钢筋笼的外径并且第一段热塑管的外径小于钢护筒的内径，所述第三段热塑管的内径与桩径相互匹配，所述第二段热塑管和第三段热塑管的圆周壁上开设有若干通孔；当钢筋笼的混凝土浇筑完成后，从钢筋笼上拔出热塑管。
Method for reducing filling coefficient of pile foundation in deep and thick soil filling area
The invention belongs to the technical field of pile foundations, discloses a method for reducing the filling coefficient of a pile foundation in a deep and thick soil filling area, and solves the problem that the filling coefficient in the deep and thick soil filling area is too large. According to the method, before a reinforcement cage is lowered to a pile hole, the periphery of the reinforcement cage is sleeved with a thermoplastic pipe, the thermoplastic pipe comprises a first section of thermoplastic pipe, a second section of thermoplastic pipe and a third section of thermoplastic pipe which are sequentially connected, the length of the first section of thermoplastic pipe is the same as that of a steel casing of the pile hole, the second section of thermoplastic pipe is in a hollow circular truncated cone shape, so that smooth transition is achieved between the first section of thermoplastic pipe and the third section of thermoplastic pipe, the inner diameter of the first section of thermoplastic pipe is larger than the outer diameter of a reinforcement cage, the outer diameter of the first section of thermoplastic pipe is smaller than the inner diameter of a steel casing, the inner diameter of the third section of thermoplastic pipe is matched with the pile diameter, a plurality of through holes are formed in the circumferential walls of the second section of thermoplastic pipe and the third section of thermoplastic pipe, and after concrete pouring of the reinforcement cage is completed, the thermoplastic pipe is pulled out of the reinforcement cage.
本发明属于桩基技术领域，公开了一种降低深厚填土区桩基充盈系数的方法，解决在深厚填土区由于充盈系数过大的问题。本发明在钢筋笼下放至桩孔之前，在钢筋笼的外围套设热塑管，所述热塑管包括依次连接的第一段热塑管、第二段热塑管和第三段热塑管，所述第一段热塑管的长度与桩孔的钢护筒的长度相同，所述第二段热塑管呈空心的圆台状使得第一段热塑管与第三段热塑管之间平滑过渡，所述第一段热塑管的内径大于钢筋笼的外径并且第一段热塑管的外径小于钢护筒的内径，所述第三段热塑管的内径与桩径相互匹配，所述第二段热塑管和第三段热塑管的圆周壁上开设有若干通孔；当钢筋笼的混凝土浇筑完成后，从钢筋笼上拔出热塑管。
Method for reducing filling coefficient of pile foundation in deep and thick soil filling area
一种降低深厚填土区桩基充盈系数的方法
XUE PENG (Autor:in) / PENG TAO (Autor:in) / REN DONGXING (Autor:in) / HE FANMIN (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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