PHC pipe pile inner guide hole drilling and hammering all-in-one machine

Abstract

The invention discloses a PHC pipe pile inner guide hole drilling and hammering all-in-one machine. The PHC pipe pile inner guide hole drilling and hammering all-in-one machine comprises a main machine platform, a tower frame, a moving mechanism, a guide hole mechanism, a hammering mechanism, a first telescopic inclined supporting rod and a second telescopic inclined supporting rod. The lower endof the tower frame is hinged to the front end of the main machine platform. The upper ends and lower ends of the first telescopic inclined supporting rod and the second telescopic inclined supportingrod are correspondingly hinged to the middle portions of the two sides of the tower frame and the rear ends of the two sides of the main machine platform. The hammering mechanism is vertically and slidably connected with the front lateral side of the tower frame. The interior of the tower frame is hollow. A vertical sliding cavity is formed. The guide hole mechanism is mounted in the vertical sliding cavity and is connected with the vertical sliding cavity in a vertical sliding mode. A hoisting mechanism is mounted in the middle of the lateral side of the tower frame. According to the PHC pipepile inner guide hole drilling and hammering all-in-one machine, the telescopic control of the two telescopic inclined supporting rods is utilized to realize precise construction of a PHC pipe pile with a set inclination angle; and due to hammering and hole drilling integrated design, a guide hole and hammering are kept at the same relatively high inclination degree, and meanwhile, a constructionsite is saved, and the construction efficiency, quality and safety are improved.

Description

technical field [0001] The invention relates to the technical field of pile foundation construction equipment, in particular to a PHC pipe pile inner drilling and hammering integrated machine. Background technique [0002] The existing pile foundation construction generally includes steel piles, bored piles, and PHC pipe piles. [0003] Since steel piles are made of steel, the material has good hardness and toughness, and a large hammer force will generally not damage the pile. At the same time, due to the high strength of steel and the small cross-section of the pile, its ability to penetrate the soil layer It is also better, and generally its quality through thicker sandy soil layers is guaranteed. However, the cost of steel piles is too expensive, so many expensive steel materials are driven underground, which is unbearable for ordinary owners. Nowadays, steel piles are less and less used in engineering foundation treatment. [0004] The bored cast-in-situ pile can pass...

AI Technical Summary

Problems solved by technology

[0005] 1) Compared with PHC piles, the bearing capacity of single piles with the same diameter is lower due to the lack of soil squeezing effect

[0006] 2) The quality of pile sinking is restricted by the construction conditions on site. It is necessary to form holes on site, make steel cages, and the concrete pouring process is complicated, and the construction is cumbersome. It is difficult to control the quality of piles.

[0008] 4) The construction speed is restricted by the equipment, and the pile sinking speed of each pile for each pile foundation is slower than that of PHC piles

[0009] 5) The construction site of bored piles will be dirty with mud flowing all over the ground, and the construction site will be busy with pumping and piling up soil.

[0010] 6) If there are karst caves or underground rivers in the pile foundation soil layer, it will cause a large amount of concrete overfilling and cause large economic losses

[0014] 1) Due to the use of two equipment, the rotary pile driver and the hammer pile driver, to complete the pilot hole and hammering construction of the PHC pipe pile respectively, it is difficult to ensure the same inclination, and the construction accuracy is poor

[0015] 2) Due to the narrow construction site of the pile group, two equipments, the rotary pile driver and the hammer pile driver, are used, and the coordination of the two equipment is difficult, which has a great impact on the project cost, quality, safety, progress, etc.

Images