JPH1096232A - Sn rotating screwing concrete pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep public pollution such as noises, vibration, etc., down to a minimum when a concrete pile is driven to prevent the production of industrial waste and the contamination of ground water. SOLUTION: A concrete pile is so produced that a spiral projection is made on the outside of the concrete pile 1, bearing hardwares interlocked with a rotational main axial bar capable of standing up with twist are mounted respectively to the front end of the pile, the tip and a joint section of a tie pile and that an auger is monolithically provided to the front end of the pile. Then, twisting force applied on the concrete pile 1 is eliminated by rotating the rotational main axial bar 4, and the pile is screwed in the ground while rotating it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation concrete pile for earthen building.

[0002]

2. Description of the Related Art Concrete pile driving is roughly divided into hammer, hydraulic pressure, press-fitting with cement milk, and a certified construction method.

[0003]

[Problems to be Solved by the Invention] The construction method using a hammer and a hydraulic pressure has pollution such as noise and vibration. Methods such as injection with cement milk use bendite to prevent the pile from breaking due to rotary injection by supporting the end of the pile, so that the groundwater is polluted and the residual soil must be treated as industrial waste.

[0004]

SUMMARY OF THE INVENTION A helical projection (2) is formed on the outer surface of a concrete pile (1), and a support metal (3) linked to a rotating spindle (4) that can withstand twisting is attached to the tip of the pile. The auger drill (5) is integrated into the end of the pile and attached to the joint of the end pile and the pile end, and the torsional force applied to the concrete pile is eliminated by rotating the rotating spindle to rotate the pile. A concrete pile screwed into the ground.

[0005]

[Function] Since it is a screw-shaped pile, it is possible to reach a predetermined support layer by press-fitting while rotating.

[0006]

[Example] To explain the drawing, dig down to the pile support layer using the auger attached to the pile driver.

[Fig.1] At this time, the side wall of the hole collapses because cement milk and bendnite are not used.

[Fig. 2] Therefore, the rotating spindle rod is placed in the concrete pile of the present invention.

[Fig. 3]

[Fig. 4] Screw in to the intended support layer while pressing and rotating

FIG.

[0007]

Since bendite is not used, no groundwater is polluted, and there is no need to dispose of residual soil as industrial waste. Since there is a protrusion of the spiral, physical strength of friction can be expected.

[Brief description of the drawings]

Fig. 1 Figure showing excavation by auger

FIG. 2 is a view showing the insertion of the pile of the present invention by its own weight.

FIG. 3 is a view showing an attempt to put a rotating spindle into a pile.

FIG. 4 is a view showing a state in which a rotating spindle is mounted in a pile.

FIG. 5 is a view showing a state in which rotary press-fitting is applied to a rotating spindle rod and inserted to a predetermined position.

FIG. 6 is a plan view of the concrete pile of the present invention.

FIG. 7 is a cross-sectional view of the concrete pile of the present invention.

FIG. 8 is a detailed view of a support hardware attached to the concrete pile of the present invention.

FIG. 9 is a front view of the concrete pile product of the present invention.

FIG. 10 is a longitudinal sectional view of the concrete pile of the present invention.

FIG. 11 is a front view of a rotating spindle rod.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete pile 2 Spiral protrusion 3 Supporting hardware linked with rotating spindle 4 Rotating spindle 5 Drill for auger

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 12, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[Fig. 1] To explain the embodiment of the present invention, (A) Drill down to the support layer with an auger attached to the pile driver (B) Insert the concrete pile pile of the present invention into the drilled hole (bentonite (Because the side wall of the hole is broken, it cannot be pressed into the specified position because it is not used.) (C) Prepare the rotating spindle of the present invention. (D) Insert the rotating spindle of the present invention to the tip of the pile. (E) Rotate the rotating spindle of the present invention to reach the planned support layer.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

Fig. 1 shows the flow of the pile driving method

FIG. 2 is a top plan view of the concrete pile pile of the present invention.

FIG. 3 is a side view of the concrete pile pile according to the present invention.

FIG. 4 is a cross-sectional view of a concrete pile pile according to the present invention.

FIG. 5 is a longitudinal sectional view of the concrete pile pile of the present invention.

FIG. 6 is a detailed view of a support hardware to be attached to the concrete pile of the present invention.

Fig. 7 Rotating spindle rod figure

[Description of Signs] 1 Concrete pile 2 Spiral protrusion 3 Supporting hardware linked with rotating spindle 4 Rotating spindle 5 Excavating blade

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

FIG. 7

Claims (1)

[Claims] A helical projection (2) is formed on the outer surface of a concrete pile (1), and a support metal (3) interlocked with a rotating spindle (4) capable of withstanding twist is attached to the tip of the pile.
Attach to the end and joint of the joint pile respectively and integrate the auger drill (5) at the tip of the pile.
This is a concrete pile that is screwed into the ground while rotating the pile by removing the twisting force applied to the concrete pile by giving rotation to the rotating spindle.