JPH0227018A - Pile sinker - Google Patents

Abstract

PURPOSE:To make unnecessary the taking off of a hopper at the time of poking a hollow pile by providing an earth discharging hopper along a leader at the front of a pile head pressurizing stand which is ascendable/descendable, and connecting engageably/disengageably the pile head pressurizing stand with an ascendable/descendable monkey within the pile head pressurizing stand. CONSTITUTION:A mid-drilling type pile sinker is basically made up of a pile head pressurizing stand 3 which is ascendable/descendable along a leader 1, an earth discharging hopper at the front of the pile head pressurizing stand 3 and an U shaped monkey which ascends/descends along the leader 1 on the pile head pressurizing stand 3. And the U shaped monkey is fixed in an earth discharging hopper 7 direction at the pile head pressurizing stand 3 engageably/ disengageably by means of a hydraulic cylinder 14 which is slidable. At the time of sinking under pressure a hollow pile by a mid-drilling operation, the ascent/descent of the monkey is made to be conducted by separating the monkey and the pressurizing stand. As a result, it is possible to get rid of the necessity of removing the earth discharging hopper at the time of piling the hollow pile.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a medium-excavation type pile sinking device, particularly to an improvement in the mounting structure of a Monken and a soil removal hopper.

``Prior art, problems that need to be solved by invention'' In general, in the case of medium-drilling pile sinking equipment, the hollow pile is first excavated with an earth ocher, then the hollow pile is press-fitted to the required depth, and then the hollow pile is placed on the pile head pressurizing table. The hollow pile is sunk 11M by moving the 0-shape pile up and down to ensure the final bearing capacity of the pile. Since the earth removal hopper is connected to the Monken via a connecting lot, it is necessary to connect the earth removal hopper and the 0-figure Monken when performing press-in settling by medium excavation construction, and to remove the earth removal hopper from the 0-figure Monken during the final impact settling. However, it is not easy to attach and detach the pile, and it is necessary to interrupt the hollow pile sinking construction to remove the soil ejecting hopper at the final impact, resulting in a corresponding decrease in work efficiency.

``Means for Solving Problems'' In order to solve the above-mentioned conventional problems, this invention was developed by attaching an earth removal hopper to the front of a pile head pressure platform that grips and pressurizes pile heads. The Monken is slidably connected to the soil removal hopper on the platform via a vertical slide mechanism, and the Monken and the pile head pressure table are removably connected via an automatic locking mechanism, making it possible to impact the impact of hollow piles. At the time of sinking, after unlocking the automatic locking mechanism and separating the Monken from the pile head pressurizing platform, by moving the Monken downward, it is possible to continue with the press-in settling process using medium excavation construction without removing the control hopper. The present invention proposes a hollow pile sinking device which is capable of sinking hollow piles by impact and is designed to improve work efficiency.

``Example'' Below, an example of this invention shown in the drawings will be explained.
Vertical kite 2 installed on Ocher Screw sorter 1
In order to do so, the pile head pressurizing table 3 or the slider 4 at the rear of the pile head pressurizing table 3 or the slider 4 at the rear of the pile head pressurizing table 3 is threatened and the slide eye is removed. A hollow U-shaped dryer with an extra volume that can be freely slid into the vertical chi I 6
It has been posted.

At the front of the pile head pressure table 3, the lower rear end of the soil removal hopper 7 placed close to the front of the 0-shaped hopper 6 is removed, and at the bottom of the pile head pressure table 3, is a grip that fits and grips the head of the hollow stake 8+! 1-S = Yap 9 or extra edition.

The 0-shaped Monken 6 is connected to the soil unloading hopper 7 through a vertical kite mechanism from the scoop 1 to the scoop 1 (as shown in the figure). A pair of vertical kite rods 1-10 are installed on both sides of the 0-character Monken 6 in close proximity to the left and right of the rear end of the υ1 soil hopper = 7. It is possible to adopt a structure in which a left and right pair of hook-shaped sliders 11 and kite rollers 11' protruding from the rear end of the slider 7 are aligned with the slide alignment.

In addition, as a vertical kite mechanism, kite rods 1 to 10 are installed on the printing hopper side, and a slider 11 or kite roller 11' is installed on the 0-character Monken 6 to hold the kite rollers 1 to 10. On the other hand, any configuration of the Kai 1 mechanism may be used as long as the 0-character Monken 6 or the Suki 1 can freely descend the y1.

The pile head pressurizing table 3 has a 1-1 actuator located close to the lower end of both sides of the U-shaped lock 6 above it to automatically lock or release the 0-shaped lock 6 as necessary. A locking machine has been installed.

As shown in the figure, this automatic lock 1]-mechanism consists of a pair of front and rear brackets 12, 12 pushed into the pile head pressurizing base 3 and sunk in, and a pair of locks 12, 12 at the bottom of both sides of the 0-shaped lock 6. Front and rear flakets 12.12 when placed on the pile head pressure table 3
A through-hole 1 is provided with a protruding frame 1-12° that fits between the holes 1-12, and 12' that communicate with each other.
313', the locking rod 15 that protrudes by the forward movement of the hydraulic cylinder 14 is inserted, and thereby the pile head pressurizing base 3
Connect the 0-character Monken 6 with the lock W and lock 11-L-1
It is possible to adopt a mechanism in which the lock is released by pulling out the lock 5 by the backward operation of the hydraulic cylinder.

On the left and right sides of the pile head pressure platform 3, scuttling prevention jacks J6 are installed facing the vertical lower blade, and the support plate 17 pivoted at the tip of the expandable rod is grounded to engage the grip key / knob 9. The hollow pile 8 suspended by the stop arm 18 is supported.

The starting plate 19 at the bottom of the soil removal hopper 7 is connected to the hydraulic cylinder 2.
It is designed to be opened and closed by 0 expansion and contraction.

``Action of the invention'' In the construction of -1- below, when sinking the pile 8, an ocher screw is inserted into the hollow pile 8 at the ground 4-, and the ocher screw is inserted along the C-tree 1. Insert the upper end of the ocher screw into the hollow part of the Ocher screw 6 through the opening of the pile head adding platform 3, connect it to the ocher drive machine, and fit the head of the hollow pile 8 into the gripping cap 9. In this case, the pile head pressurizing base 3 and the 0-shaped lock 6 are connected to the lock 1F by the locks Z1-1-15, which are connected to each other by the locks Z1-12 and 13. .

In this state, the ocher screw inserted into the C1 hollow pile 8 is rotated to drill a hole, and the pile head press-fitting table 2.
Press-fit the middle 51 and pile 8 one after another by applying the press-fitting load to the 0-character Monken 6 and the upper hopper 7 of υ1.

This time, 0 character Monken 6 by Oaker Screw
The earth and sand that has been taken out from the earth hopper 7 is taken out into the earth discharge hopper 7, and each time it becomes full, the cover plate 18 is moved to the hydraulic cylinder 19.
Open and drain.

In this way, after press-in and sinking to a predetermined depth through medium excavation construction, the 0-character Monken 6"C
+T * When pressurizing the shi'C, the locks are automatically released by pulling out the arrow lock rods 1 to 15 by the backward operation of the hydraulic cylinder, and the 0-shaped Monken 6 is separated from the pile head press-in base 2. This is moved up and down along the vertical chi 1 to 2 and chi 1 to lotu I-' l O by the actuating wire of the earth oaker, and the pile head pressurizing table 3 is struck to sink the hollow pile 8.

Therefore, during this hammer-sinking process, it is possible to carry out the hammer-sinking process in succession to the press-in sinking process without removing the soil removal hopper 7, which makes the sinking process extremely easy and efficient, and the pile head pressurizing platform 3 and the Since the load of the earth removal hopper 7 integrated with the pile is acting 1, even if the impact force of the 0-shaped Monken 6 is small, it is possible to apply a sufficient sinking driving force to the hollow pile 8.

``Effect of the invention'' As stated in section 2 below, this invention has the following advantages: a soil removal hopper is attached to the front of a pile head pressure table that can be slid along the leader; The Monken, which can be slid freely along the motor, is moved through the overlapping slide mechanism to the ejector-1-
The scoop 1 is freely connected to the hopper, and the Monken and the pile head pressurizing table are removably connected via an automatic locking mechanism. The pressure table is connected to an automatic lock via a mechanism, and when the hollow pile is subsequently hammered and settled, the automatic locking mechanism is unlocked. By moving the pile downward, it is possible to sink the hollow pile by impact in two consecutive steps without removing the soil removal hopper, making it possible to easily and efficiently perform the pile sinking work.

In addition, when sinking by impact, the load of the pile head pressurizing platform and the soil removal hopper that is attached to it is acting, so even if the impact force of the U-shaped Monken is small, it is sufficient to sink the hollow pile. It can act as a propulsive force.

[Brief explanation of the drawing]

Figure 1 is a side view showing an embodiment of this invention, Section 2 is a rear view of the same, Figure 3 is a top view of the same, and Figure 4 is a disconnection of the Monken and pile head pressurizing platform according to this invention. FIG. 5 is a vertical sectional side view showing an example of an automatic locking mechanism for locking, and FIG. 5 is a plan view of a conventional hollow-type pile sinking device. ■...Leader, 2...Vertical kite, 3...Pile head press-in stand, 4...Slider 5...Slider, 6...U-shaped Mon'ken, 7...Publish small brim 28...Hollow pile , 9...Gripping cap, 10...Kaitorot, 11...
Slider, 11'...Kite roller 12.12'
...Fracket, 13.13' ...Through hole, 14..Hydraulic cylinder 15.
・Locking rods 1 to 16・・Scuttling prevention jack, 17・・Support plate, 18・・Locking arm 19・・Lid plate, 20・・Hydraulic cylinder - f Itouri Neichi 1F book (Buno style)

Claims (1)

[Claims] 1) A soil removal hopper is attached to the front of a pile head pressure platform that can be slid freely along the leader, and a soil removal hopper that can be slid freely along the leader is mounted on the pile head pressure platform via a vertical slide mechanism. Slidingly connected to the soil hopper,
A medium-excavation type pile sinking device, characterized in that the Monken and the pile head pressurizing table are removably connected to each other via an automatic locking mechanism.