Prestressed pipe pile construction method based on building information modeling (BIM) and prestressed pipe pile

Abstract

The invention provides a prestressed pipe pile construction method based on the building information modeling (BIM). The construction method comprises the following steps that a, the layer thicknesses and the mechanical properties of various types of soil layers around pipe piles are input into the BIM according to a bore hole columnar section, and a 3 D model of the pipe piles is established; b, an internal force analysis diagram of each pipe pile under different excavation working conditions is educed through the BIM technology, the stress of each pipe pile under different excavation working conditions is analyzed, the maximum shear force value Vmax of each segment of the pipe piles under different excavation working conditions is figured out, and a shear force envelope diagram is drawn; and c, according to the stress analysis, H-shaped steel is arranged on a dangerous segment where the shear force value Vmax of the pipe piles is greater than V, and V is the shear strength of the pipe piles. According to the prestressed pipe pile construction method based on the BIM, the prestress analysis is conducted on the pipe piles through the BIM, and the reinforcement treatment is conducted on the pipe piles, so that the shear capacity of the pipe piles is increased.

Description

technical field [0001] The invention relates to a construction method of a BIM-based prestressed pipe pile and a prestressed pipe pile, belonging to the technical field of construction. Background technique [0002] In the construction of the reverse method, engineering piles are often required as temporary structural columns and engineering support piles, so the force requirements for engineering piles are very high. Ordinary engineering piles rely on frictional resistance and end resistance to bear the load on the top of the pile, and transfer the load on the top of the pile to the foundation soil; Rods; ordinary support piles rely on their own shear resistance to withstand lateral soil pressure. However, there are many deficiencies in the construction of this kind of support pile: (1) the construction process of ordinary concrete foundation pit support pile is long, the process is complicated and various, and the situations that occur when drilling piles are various, whi...

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Problems solved by technology

However, there are many deficiencies in the construction of this kind of support pile: (1) the construction process of ordinary concrete foundation pit support pile is long, the process is complicated and various, and the situations that occur when drilling piles are various, which makes it difficult to estimate the construction time and cause delays in the construction period ; (2) Because ordinary concrete foundation pit support piles need to be piled at the construction site, different machines, different personnel, and different construction methods lead to the emergence of various types of piles, and the quality of piles is uneven; 3) Ordinary concrete foundation pit support The cost of piles is higher than that of prestressed concrete pipe piles; 4) Due to the complex and diverse geology of soft soil foundations, and complex terrain such as karst caves will appear in some areas, it is difficult to form piles and is not suitable for soft soil foundations; 5) Ordinary concrete foundation pit support When the protection piles are piled up, a lot of noise is caused, which affects the surrounding living environment, and the discharged sludge needs to be transported outside, causing environmental pollution on the surrounding roads

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