Prefabricated tubular pile capable of draining water and increasing frictional resistance and construction method thereof

Abstract

The invention discloses a prefabricated tubular pile capable of draining water and increasing frictional resistance and a construction method thereof. Small holes are formed in the side surface of the prefabricated tubular pile and are distributed in a staggered mode randomly. Geofabric is arranged on the prefabricated tubular pile in a sleeving mode, and the prefabricated tubular pile is implanted into soil. After water in soil around the pile permeates into an inner pipe through the geofabric via the small holes distributed in the side surface of the prefabricated tubular pile, water draining is carried out. After drainage consolidation, the geofabric is punctured, and the soil around the pile enters the inner pipe through the small holes in the side surface of the prefabricated tubular pile. The soil around the pile is continuously poured into the inner pipe from the top of the prefabricated tubular pile, after leveling, broken stone hardcore and grid backfill is carried out, and after backfill, the height of a top layer grid is the same as designed elevation. Low-pressure pile force construction can be used for obtaining a high-bearing-capacity pile, the purposes that pile foundation bearing force and construction efficiency are effectively improved are achieved, the side frictional resistance of the pile is improved, noise and mud pollution are avoided during construction, disturbance on the ground is low, the structure is simple, construction speed is high, the cycle is short, and efficient and quick results can be achieved in emergency engineering.

Description

technical field [0001] The invention belongs to a prefabricated pipe pile and a construction method thereof, and relates to a prefabricated pipe pile capable of draining water and increasing frictional resistance and a construction method thereof in the technical field of civil engineering construction, which can achieve drainage and improve frictional resistance effects. Background technique [0002] At present, with the rapid development of my country's economic construction, the land resources in the developed eastern coastal areas are limited, and the construction of reclamation projects, large ports and new airports, high-speed railways, and coastal new urban areas has entered a new period of rapid development, especially in the environment. The Bohai Bay Economic Belt, the Yangtze River Delta, and the Pearl River Delta are typical representatives of coastal industrial clusters that commonly exist in weak soil environments. Although the commonly used flexible pile compos...

AI Technical Summary

Problems solved by technology

Although the commonly used flexible pile composite foundation is cheap, the strength of the pile body is low, and the reinforcement depth is limited; the rigid pile body has high strength, and the reinforcement depth is large, but the cost is high.

However, although the newly developed cast-in-place concrete large-diameter pipe pile (PCC pile) combines the advantages of the above two kinds of piles, it has the disadvantages of mud pollution during the construction process and low construction efficiency.

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