Multi-purpose pile-forming equipment capable of achieving forming of various piles

Abstract

The invention provides multi-purpose pile-forming equipment capable of achieving forming of various piles. The pile-forming equipment comprises a base, an upright frame and a stirring head; the stirring head comprises a drilling control box, a motive power box, an oil pressure adjusting box, a drilling rod and a conical drill bit with telescopic blades; the motive power box is mounted in the drilling control box through a lifting mechanism; a drill bit rotating motor is disposed in the motive power box; the drilling rod comprises an inner-layer sleeve which is connected with the drill bit rotating motor, an outer-layer sleeve which is connected with the drilling control box and a middle-layer sleeve, wherein the lower end of the inner-layer sleeve is connected with the conical drill bit; an opening-closing baffle is disposed at the bottom of an annular cavity between the outer-layer sleeve and the middle-layer sleeve; an annular oil pressure cavity with a movable baffle is disposed between the middle-layer sleeve and the inner-layer sleeve; the oil pressure adjusting box communicates with the annular oil pressure cavity; and spraying holes are formed in the drill bit and the outer-layer sleeve correspondingly. Construction of various piles which are different in material and pile diameter can be achieved through the equipment, the engineering adaptability is high, and the pile-forming quality is better.

Description

Technical field [0001] The invention relates to construction machinery and equipment for foundation treatment projects, in particular to a multi-purpose pile forming equipment which can realize the formation of multiple pile types. Background technique [0002] Due to the advantages of economical, flexible layout, low construction noise, and low pollution, cement-soil mixing piles have been widely used in soft soil foundation reinforcement to enhance vertical bearing capacity, soft soil areas, foundation pits, and soft soil areas. In the construction of the anti-seepage and water-stop curtain of the foundation pit, it meets the construction technical requirements of different types of construction projects such as the increase of the vertical bearing capacity, the control of the foundation settlement, the enhancement of the sidewall stability and the water interception in an economical and simple way. However, due to engineering needs, under different types of soil and bearing re...

AI Technical Summary

Problems solved by technology

This construction method often requires two types of machinery to form piles, which is expensive and consumes a lot of mechanical energy.

[0005] In addition, in the treatment of weak ground, concrete piles are also commonly used due to their high bearing capacity, but the commonly used immersed tube grouting in weak soil layers often forms holes through hammering, vibration, etc., which consumes a lot of energy and makes a lot of noise , another commonly used long spiral hole-forming method often causes necking or broken piles, and discharges a large amount of muck that needs to be transported outside the site. The quality of the piles is difficult to guarantee and it is not environmentally friendly.

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