JPH1068126A - Embedding device for embedded member and embedded member holding device used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make vertical size of an embedding device small to make the whole device compact and lightweight. SOLUTION: An embedding device for an embedded member is equipped with an embedded member bearing section 2 bearing an H-shaped steel material in a state to extend in the vertical direction and an air hammer 4 urging the H-shaped steel material 1 borne on the embedded member bearing section 2 downward and driven in the ground. In that case, the embedded member bearing section 2 is equipped with an embedded member holding device 8 for holding the side of the H-shaped steel material 1 and a holding device bearing mechanism 9 for bearing the embedded member holding device 8 in a liftable manner, and the air hammer 4 urges the embedded member holding device 8 downward. Thereby since the air hammer 4 can be driven without raising it to the top of the H-shaped steel material 1, the vertical size of the embedding device can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buried member supporting portion for supporting an elongated buried member to be used as a foundation for earth retaining or a building so as to extend in a vertical direction, and to be supported by the buried member supporting portion. A buried member urging section for urging the buried member downward and pushing it into the ground, and particularly relates to an embedding member embedding device comprising: The present invention relates to an embedding device which can be configured so as not to be taken, can be constructed at a low cost, and can be easily constructed, and further relates to an embedding member holding tool used in the device.

[0002]

2. Description of the Related Art Conventionally, as an embedding device as described above,
It is generally known that a concrete pile is buried as an elongated buried member, and this device is used to hold the upper end of the concrete pile and extend the concrete pile vertically, that is, in a state of standing vertically. A buried member supporting portion for supporting, and a buried member urging portion for urging the upper end of the concrete pile supported by the buried member supporting portion downward and forcing the concrete pile into the ground, and usually further comprises A so-called power shovel comprises an upper revolving body that supports the buried member support portion and the buried member biasing portion at the boom tip as a front attachment, and a lower traveling body that supports and supports the upper revolving body. ing.

When the ground in which the concrete pile is buried is hard, a so-called air hammer is usually used as an embedding member urging portion in the embedding device. The air hammer is driven up and down by compressed air to drive the hammer. The inertia force generates a downward impact force, and the impact force urges the upper end of the concrete pile downward to drive the concrete pile into the ground. On the other hand, when the ground in which the concrete pile is buried is not so hard, a so-called hydraulic press machine is usually used as the buried member urging portion, and the press machine is supported by the buried member support portion and has a hydraulic pressure. The piston presses the piston to generate a downward pressing force, and the pressing force urges the upper end of the concrete pile downward to push the concrete pile into the ground.

[0004]

However, in such a conventional embedding device, the buried member support portion only supports the concrete pile in a vertically standing state.
Since the buried member urging part was located on the vertically standing concrete pile and urged the concrete pile downward, it was necessary to raise the buried member urging part to a high position, so the device was inevitable. The vertical dimension of becomes larger,
For this reason, there is a problem that construction is difficult in a place with a small amount of vertical space, such as in a tunnel, under an elevated track, in an underground shopping mall, indoors, and the like. There was a problem that the work for prevention became large and time was required for installation of the apparatus.

Further, in the above-mentioned conventional apparatus, since the vertical dimension of the apparatus is increased as described above, it is necessary to make the rear part of the upper revolving structure heavy and large in order to balance the entire apparatus. As a result, the entire device becomes heavy and bulky, which causes problems such as increased fuel cost when traveling on the undercarriage and difficulties in construction at narrow sites. Therefore, piles longer than the vertical dimension of the equipment cannot be buried inevitably.
In the case of adding piles, there was a problem that the length of each pile could not be so long, and the number of piles increased, which took a long time for the construction.

[0006] By the way, H-shaped steel and sheet pile-type steel are also used as buried members to be used as foundations for earth retaining and building structures. We focused on the point that it had sufficient rigidity to be pinched.

[0007]

SUMMARY OF THE INVENTION The present invention provides an embedding device for an embedding member which advantageously solves the above-mentioned problems in view of the above-mentioned points of interest, and a holding tool for the device. The embedding member embedding device of the present invention includes an embedding member supporting portion that supports an elongated embedding member in a vertically extending state, and urges the embedding member supported by the embedding member supporting portion downward. A buried member urging portion to be pushed into the ground, wherein the buried member supporting portion supports the buried member holding device for holding the side surface of the buried member and the buried member holding device so as to be able to move up and down. And a holding device supporting mechanism, wherein the embedded member urging portion is
It is characterized in that the embedded member holding tool is urged downward.

In such an apparatus, the buried member supporter of the buried member supporting portion holds the side surface of the buried member so that the buried member supporting portion supports the elongated buried member in a state of extending vertically. When the burying member urging unit urges the burying member holding tool downward, the burying member urging unit urges the burying member downward and pushes it into the ground.

Therefore, according to the embedding device of the present invention, the burying member holding member of the burying member support portion holds the side surface of the burying member, and the burying member urging portion urges the burying member holding member downward. Since it is not necessary to raise the buried member urging portion to a high position, the vertical dimension of the device can be reduced, and therefore, the installation can be easily performed even in a place where the vertical space is small, such as an underground room, and at the time of the installation, Since the position of the center of gravity is lowered, the work for preventing the device from overturning is simplified, and the device can be easily installed.

Further, according to the embedding device of the present invention, since the vertical dimension of the device can be reduced as described above, it is necessary to make the rear portion of the upper revolving structure heavy or large in order to balance the entire device. As a result, the entire device can be made lighter and smaller, which saves fuel costs when traveling on the undercarriage and facilitates construction on narrow sites. Since the buried member longer than the vertical dimension of the device can be buried from the device, in the case of rebuilding of the buried member, the length of one buried member can be lengthened to reduce the number of buried members. Construction time can be shortened.

In the embedding apparatus according to the present invention, the burying member holding device may be any device that can hold the side surface of the buried member, such as a device that presses the holding member against the side surface of the burying member by pressing with a bolt. Sufficient, but preferably, a frame that is supported by the holding tool support mechanism and that forms a frame surrounding the side surface of the embedded member, and the lowering and rising movement of the frame with respect to the embedded member, the side surface of the embedded member By converting the approach and separation movement of the holding member movably supported inside the frame,
A burying member clamping mechanism for urging the holding member toward the side surface of the burying member by the downward movement of the frame with respect to the burying member, and holding the side surface of the burying member with the holding member. I do.

In such an embedded member holding device, the frame is moved down with respect to the embedded member while the frame surrounds the side surface of the embedded member and supports the embedded member in a vertically extending state. And the embedded member holding mechanism converts the downward movement of the frame into an approaching movement of the holding member movably supported inside the frame with respect to the side surface of the embedded member, thereby directing the holding member toward the side surface of the embedded member. And the side surface of the embedded member is held by the holding member.

Therefore, according to this buried member holding device, when the frame of the buried member holding device which supports the buried member in a vertical position at the construction position is moved down with respect to the buried member, the buried member holding mechanism is provided. Since the holding member is urged toward the side surface of the buried member and the side surface of the buried member is held by the holding member, once the holding member contacts the side surface of the buried member, the buried member is pushed into the ground. As long as the buried member urging unit applies a downward biasing force to the buried member holding device, the buried member holding device continues to firmly hold the buried member, and therefore, when the buried member holding device is installed on relatively hard ground, Also, it is possible to effectively prevent the buried member holding tool from sliding on the side surface of the buried member while the buried member is being pushed.

In the above-mentioned buried member holding device, the frame is raised with respect to the buried member while the frame surrounds the side surface of the buried member and supports the buried member so as to extend in the vertical direction. Then, the embedded member holding mechanism converts the upward movement of the frame into a separation movement of the holding member movably supported inside the frame with respect to the side surface of the embedded member, thereby releasing the holding state of the side surface of the embedded member. Then, the embedded member is released.

Therefore, according to this buried member holding device, when the buried member is pushed into the ground to some extent at the construction position and the buried member holding device approaches the ground, the buried member holding device is simply lifted along the buried member. If the holding state by the holding member can be released, and the embedded member holding device is raised to a high position in this way and then the embedded member holding device is lowered again, the holding member can again hold the side surface of the high position of the embedded member. Therefore, by repeating this, the long embedded member can be continuously pushed into the ground without completely removing the embedded member holding device from the embedded member, and therefore, the embedded member longer than the vertical dimension of the device. When buried, the construction can be extremely smooth.

Here, the holding member in the holding member holding tool may be one or more movable supported by the frame to hold the holding member between the holding member and the frame. If it is possible to simplify the structure of the embedded member holding device, and to manufacture the embedded member holding device at low cost,
In addition, if a plurality of holding members are used, the holding force can be increased, and the installation on extremely hard ground can be facilitated. And the holding member may be a plurality of which are movably supported by the frame and cooperate with each other to hold the embedded member. In this case, the holding force can be further increased, and the holding member can be held within the embedded member holding tool. The embedded member can be sandwiched without shifting the supporting position of the embedded member of the embedded member, and moreover, the embedded member that is relatively difficult to sandwich from two directions facing each other like the embedded member having a circular cross section from many directions. It can be securely clamped.

In the embedment member holding device, the holding member may be wedge-shaped, and the burying member holding mechanism may be framed with respect to the holding member by an inclined cam surface slidably contacting the wedge-shaped holding member. May be a mechanism for pressing the holding member toward the buried member as it relatively descends, but more preferably, the holding member has a columnar shape having a convex curved surface on at least a part of its side surface. Rotating the holding member to the frame at a position on a horizontal straight line extending from the position of the center axis with respect to the convex curved surface of the side surface of the holding member and extending parallel to the center axis. A mechanism that supports eccentricity as much as possible

According to the mechanism using the principle of the wedge or the eccentric ring, the force for urging the embedded member holding tool downward can be increased to be the holding force of the embedded member. According to the mechanism using the principle of the eccentric ring by the columnar holding member having the above-mentioned convex curved surface, the holding member can be more reliably prevented from slipping by the holding member. The structure for movably supporting the embedded member can be simplified, and the production and maintenance of the embedded member holding tool can be facilitated.

Further, in the embedding device of the present invention, the embedding member urging portion drives the hammer up and down by compressed air to generate a downward impact force by the inertia force of the hammer, and the impulsive force causes the embedding member to be clamped. A so-called air hammer that urges the tool downward may be used. According to such an air hammer, the embedding member can be easily installed on hard ground. Further, in the embedding device of the present invention, the burying member urging portion is supported by the holding device support mechanism and presses the piston with hydraulic pressure to generate a downward pressing force, and the pressing force causes the burying member holding device to A hydraulic press-fitting machine which urges downwards may be used. According to such a hydraulic press-fitting machine, the construction can be performed with low noise when the buried member is constructed on a relatively soft ground.

The embedding device of the present invention is particularly suitable for embedding an H-shaped steel or a sheet pile-type steel having sufficient rigidity so that the side surface can be clamped as the embedding member. For example, in the case of construction of a buried member on relatively soft ground, a concrete pile can be buried as the buried member.

The burying member holding device of the present invention for the burying member embedding device described above is supported by the holding device support mechanism and has a frame shape surrounding a side surface of the burying member. By converting the lowering and raising movement of the frame with respect to the buried member into the approaching and separating movement of the holding member movably supported inside the frame with respect to the side surface of the burying member, the lowering movement of the frame with respect to the burying member And a burying member clamping mechanism for urging the holding member toward the side surface of the embedded member to hold the side surface of the embedded member by the holding member.

In this embedded member holding device, as in the above-described embedded member embedding device, the holding member is movably supported by one or more of the frame and holds the embedded member between the frame and the frame. The frame may be a plurality of which are movably supported by the frame and cooperate with each other to clamp the embedded member. In addition, the holding member has a columnar shape having a convex curved surface on at least a part of a side surface, and the embedded member holding mechanism includes:
A mechanism may be provided for eccentrically supporting the holding member to the frame at a position on a horizontal straight line extending from the position of the center axis with respect to the convex curved surface of the side surface of the holding member and parallel to the center axis. .

Further, in this embedded member holding device, the embedded member may be an H-shaped steel material or a sheet pile type steel material as in the above-described embedded member embedding device.

According to such an embedded member holding tool, it is possible to bring about the operation and effect of the above-described embedded member embedding device of the present invention.

[0025]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a side view showing an entire embodiment of an embedding member embedding device of the present invention. The device of this embodiment vertically moves an H-shaped steel material (so-called H steel) 1 as an elongated embedding member. A buried member supporting portion 2 which supports the H-shaped steel member 1 supported by the buried member supporting portion 2 in a state extending in the direction, that is, in a vertically standing state, and urges the H-shaped steel material 1 downward to be pushed into the ground 3. An upper revolving body 6 that includes an air hammer 4 as a biasing portion, and further supports the embedded member support portion 2 and the air hammer 4 at the distal end of a boom 5 as a front attachment; And a crawler-type lower traveling body 7 that travels while supporting the vehicle.

The air hammer 4 in the embedding apparatus of this embodiment drives the built-in hammer up and down by compressed air to generate a downward impact force by the inertia force of the hammer, and the H-shaped steel material 1 is downwardly moved by the impact force. The air hammer 4 is a known one that is urged and driven into the ground 3.
What is marketed by the present applicant under the trade name “Grundrum” can be used. In this embodiment, the air hammer 4 is used. However, when the ground 3 is not so hard, a known hydraulic press-fitting machine may be used as the embedding member urging portion. Member support 2
And presses the piston with hydraulic pressure to generate a downward pressing force. The pressing force urges the H-shaped steel material 1 downward and drives it into the ground 3. In this case, the reaction force from the H-shaped steel material 1 is supported by the embedded member support 2.

FIGS. 2 to 4 are enlarged views of the buried member supporting portion 2 and the air hammer 4 in the above embodiment. As shown in FIG.
And a holding member support mechanism 9 for supporting the embedded member holding member 8 so that the embedded member holding member 8 can be raised and lowered. The embedded member holding member 8 is integrated with the lower end of the air hammer 4. The holding device support mechanism 9 supports the side portion of the air hammer 4 so that the air hammer 4
The supporting member 8 is supported via the embedded member. That is, as shown in FIG. 2, the holding tool support mechanism 9 includes a prismatic leader 10 attached to the tip of the boom 5 and an air hammer 4.
3 and 4, the leader 10 has guide rails 12 extending along them on both side surfaces thereof. Has an inward groove 13 which can be slidably fitted to the guide rails 12, and by the engagement between the guide rails 12 and the grooves 13, the leader 10 allows the support bracket 11 and thus the air hammer 4 The holder support mechanism 9 supports the embedded member holder 8 so as to be able to move up and down.

In this embodiment, as shown in FIG. 1, a winch 14 driven by a hydraulic motor is provided on the boom 5, and the winch 14 sets the H-shaped steel material 1 on the holding member holding tool 8. At the same time, the H-shaped steel material 1 is lifted, and at the time of driving the H-shaped steel material 1,
It plays a role of lifting up to the driving start height near the upper end of the shaped steel material 1.

On the other hand, the embedded member holding tool 8 is shown in FIGS.
As shown in FIG. 2, a top plate 15 integrally fixed to the lower end of the air hammer 4, a side plate 16 vertically fixed to the lower surface near both sides of the top plate 15, and a vertical end on the front end of the side plate 16 And a front plate 17 fixed to the frame 18. An H-shaped clamper holder 19 is fixed to the lower surface of the frame 18 near the front end of the top plate 15. The front ends of the clamper holder 19 and the top plate 15 and both side plates 16 are fixed.
The front plate 17 has a frame shape through which the H-shaped steel material 1 can be vertically inserted.

Also, inside the both side plates 16 of the frame 18, U-shaped guide plates 20 are arranged facing each other, and these guide plates 20 are moved in the approaching and separating directions from each other. It is slidably fitted to the side plate 16. Stopper bolts 21 that abut against the back surface of the guide plate 20 and restrict retreat are screwed to both the side plates 16, respectively, and the projecting lengths of the stopper bolts 21 into the side plate 16 are adjusted. The guide plate 20 can be adjusted appropriately.
Is appropriately positioned, and guides the lifting and lowering movement of the H-shaped steel material 1 inserted between the guide plates 20 between the guide plates 20 with respect to the frame 18 substantially without play and smoothly.

FIG. 5 is an enlarged view of the clamper holder 19 fixed to the lower surface of the top plate 15 of the frame 18, and in this embodiment, two clamps of the clamper holder 19 fitted to the both side plates 16 respectively. A cylindrical clamper as a holding member is provided inside each of the two ends adjacent to the two guide plates 20.
The two clampers 22 are arranged so that their central axes extend horizontally and parallel to the guide plate 20.
5, the outer peripheral surface 22a of the clamper 22 is separated from the inner surface 1b of the flange portion 1a of the H-shaped steel member 1 located between the guide plates 20, and the center axis at the imaginary line position in FIG. Above the position a and the inner surface of the flange portion of the H-shaped steel 1
A support shaft 23 extending parallel to the central axis at a position approaching 1b is eccentrically supported by the clamper holder 19 so as to be rotatable, thereby constituting an H-shaped steel material holding mechanism 24.

In the H-shaped steel material holding mechanism 24, the clamper 22 is moved around the support shaft 23 from the imaginary line position in the clockwise direction on the left side and in the counterclockwise direction on the right side in FIG. When turned, they approach the inner surface 1b of the flange portion of the H-shaped steel material 1 respectively, and when they turn to the position shown by the solid line in FIG. When the frame 18 is moved downward with respect to the H-shaped steel material 1 in this contact state, the outer peripheral surface 22a is formed on the inner surface 1b of the flange portion of the H-shaped steel material 1.
The two clampers 22 that are in contact with each other further rotate in the above-mentioned rotation direction, respectively, and
The H-shaped steel member 1 is further moved in the approaching direction with respect to the flange 1b, and is brought into contact with the inner surfaces 1b of the flanges to form a so-called biting state. And cooperate with it.

On the other hand, when the frame 18 is moved upward with respect to the H-shaped steel material 1 from the above-described sandwiched state, the two clampers 22 that are in contact with the inner surface 1b of the flange portion of the H-shaped steel material 1 at the outer peripheral surface 22a respectively become The H-shaped steel material 1 is rotated in a direction opposite to the above-described rotation direction, moves in a direction away from the inner surface 1b of the flange portion of the H-shaped steel material 1, and cuts into the inner surface 1b of the flange portion, and furthermore, clamps the inner surface 1b. It is released and the H-shaped steel 1 is released. In this embodiment, H
The inner surface 1b of the flange portion of the H-shaped steel material 1 when holding the shaped steel material 1
To help the clamper 22 bite into the clamper 22 and to release the H-shaped steel material 1 too tightly.
In order to loosen the levers, levers 25 are protrudingly provided on the respective clampers 22.These levers 25 can be lowered by their own weight to rotate the clampers 22 in the contact direction with respect to the flange inner surface 1b. When the operator hits or pryes it with a tool or the like, the clamper 22 can be rotated in a required direction.

FIG. 6 shows, together with FIG. 1, a process of driving a plurality of H-shaped steel materials 1 into the ground 3 by the embedding apparatus of this embodiment configured as described above. First, as shown by the arrow in FIG.
At the winch 14 of the boom 5, the H prepared in the steel yard
The H-shaped steel member 1 is inserted into the frame 18 of the embedded member holding member 8 by lifting the mold steel member 1 above the embedded member holding member 8 and then lowered, and then guided by adjusting the projecting length of the stopper bolt 21. After positioning the plate 20 in close contact with the H-shaped steel material 1, the entire apparatus is appropriately moved by the lower traveling body 7 in that state to position the H-shaped steel material 1 at a predetermined embedding position. The H-shaped steel material 1 is lowered on the ground 3 and the leader 10 is set upright, and the H-shaped steel material 1 is held vertically by the embedded member clamping tool 8.

Next, as shown in FIG.
At 14, the embedded member holding tool 8 is temporarily lifted up to the vicinity of the upper end of the H-shaped steel material 1, and at that position, the clamper 22 is rotated by its own weight of the lever 25, or by the auxiliary work of the worker accompanying the clamper. 22 is brought into contact with the inner surface 1b of the flange portion of the H-shaped steel material 1, and more preferably, is brought into contact with the H-shaped steel material 1 to a certain extent. The H-shaped steel material 1 is securely held by the embedded member holding tool 8 by being lowered with respect to the shaped steel material 1. After that, winch 14
By operating the air hammer 4 in a state in which the H-shaped steel material 1 is held vertically by the holding tool support mechanism 9 and the embedded member holding tool 8 as shown by the arrow in FIG. H-shaped steel 1 is ground 3 by the impact force of air hammer 4
Drive into it.

FIG. 6B shows the first H-shaped steel material 1.
When the second H-shaped steel material 1 is buried leaving the upper end portion as shown in FIG. 3, the second H-shaped steel material 1 is placed on the first H-shaped steel material 1 by using the winch 14 in the same manner as described above. c)
As shown in (1), the embedded member clamper 8 is temporarily lifted to the vicinity of the upper end of the second H-shaped steel material 1 by the winch 14, and then the first and second H-shaped steel materials 1 are joined by welding or a joint plate. Alternatively, the first and second H-shaped steel members 1 may be welded or joined by a joint plate or the like in a state where the embedded member clamping device 8 is at the position of the first H-shaped steel member 1, and then the guide plate 20 and H The buried member holding device 8 is lifted by the winch 14 to a position near the upper end of the second H-shaped steel material 1 by widening the gap between the steel material 1 and the seam between the steel materials.

Then, as shown by the arrow in FIG. 6C, the second H-shaped steel 1 is ground by the impact force of the air hammer 4 in the same manner as in the case of the first H-shaped steel 1. 3 and by repeating this operation, when the driving of the last one of the predetermined number of H-shaped steel members 1 is completed as shown in FIG. The last H-shaped steel material 1 is removed from the upper end. When it is necessary to further drive the last H-shaped steel material 1 close to the ground from the construction specifications, a bottom plate is attached to the lower end of the burying member holding device 8, and the bottom plate is inserted through the bottom plate as in a conventional embedding device. The last H-shaped steel 1
The impact force of the air hammer 4 may be applied to the upper end of the H-shaped steel material 1. In this way, the last H-shaped steel material 1 can be driven close to the ground and even lower than the ground.

Thus, according to the embedding device of this embodiment, the embedded member holding member 8 of the embedded member support portion 2 is made of the H-shaped steel 1
And the air hammer 4 urges the buried member holding tool 6 downward, so that it is not necessary to lift the air hammer 4 to a high position above the H-shaped steel material 1. It can be made smaller, so that it can be easily installed even in places where there is little vertical space, such as underground rooms, etc., and since the center of gravity of the equipment is lowered at the time of installation, the work to prevent the equipment from overturning becomes simpler, and Installation can be performed easily.

Further, according to the embedding device of this embodiment, since the vertical size of the device can be reduced as described above, the rear portion of the upper revolving unit 6 may be made heavy or large in order to balance the entire device. Since there is no need to perform the operation, the entire apparatus can be made lighter and smaller, so that fuel cost when traveling on the lower traveling body 7 can be saved, and construction on a narrow site can be easily performed. Since the H-shaped steel material 1 longer than the vertical dimension of the device can be buried from the configuration, when the H-shaped steel material 1 is added,
By setting the H-shaped steel material 1 in the buried member holding tool 8 using a separate crane or the like instead of the winch 14, the length of each H-shaped steel material 1 is increased and the number of H-shaped steel materials 1 is increased. Can be reduced, and in such a case, the construction time can be shortened.

Further, according to the embedding member holding device 8 in the embedding device of this embodiment, the frame 18 of the embedding member holding device 8 supporting the H-shaped steel material 1 in a vertical position at the construction position is connected to the H-shaped steel material 1. , The embedded member clamping mechanism 24 urges the clamper 22 toward the side surface of the H-shaped steel material 1 and clamps the side surface of the H-shaped steel material 1 by the clamper 22. After contacting the side surface of the mold steel 1, as long as the air hammer 4 applies a downward urging force to the embedding member clamping device 8 for driving the H-shaped steel material 1 into the ground 3, the burying member clamping device 8 Continues to hold the H-shaped steel 1 firmly, and therefore, even when working on relatively hard ground,
It is possible to effectively prevent the embedded member holding member 8 from sliding on the side surface of the H-shaped steel material 1 during the driving of the H-shaped steel material 1.

Further, according to the embedded member holding device 8, when the H-shaped steel material 1 is driven into the ground 3 to some extent at the construction position and the embedded member holding device 8 approaches the ground, the embedded member holding device 8
Is lifted along the H-shaped steel member 1 to release the clamping state by the clamper 22. In this manner, the embedded member clamping device 8 is raised to a high position, and then the embedded member clamping device 8 is lowered again. , The side surface of the H-shaped steel material 1 at a high position can be clamped again. By repeating this, the long H-shaped steel material 1 can be continuously ground without removing the embedded member clamping tool 8 from the H-shaped steel material 1 at all. Therefore, even when the H-shaped steel material 1 longer than the vertical dimension of the device is buried, the work can be extremely smoothly performed.

Further, according to the embedded member holding device 8, the two clampers 22 are movably supported by the frame 18, and the guide plate
Since the H-shaped steel material 1 is clamped between the frame 18 and the frame 18, the clamping force can be sufficiently increased, and construction on extremely hard ground can be facilitated. Further, according to the embedded member holding tool 8, the clamper 22 is formed in a cylindrical shape so that the entire side surface has a convex curved surface, and the embedded member holding mechanism 24 rotates the clamper 22 to the frame 18 by the support shaft 23. Since it is eccentrically supported movably, the force for urging the embedded member holding member 8 downward can be increased to be the holding force of the H-shaped steel member 1, and the embedded member holding member 8 on the side surface of the H-shaped steel member 1 can be increased. Slippage can be more reliably prevented, and the structure in which the clamper 22 is movably supported by the frame 18 can be simplified, thereby facilitating the manufacture and maintenance of the embedded member clamp 8.

Although the present invention has been described with reference to the illustrated examples, the present invention is not limited to the above-described example. For example, only one holding member is movably supported by the frame and the embedded member is inserted between the frame and the frame. The side surface may be clamped. In such a case, the inventor of the present application performed a driving test of the H-shaped steel material 1 with respect to the embedded member clamping tool 8 except for one of the clampers 22 in the previous embodiment. It has been found that even the embedded member holding tool 8 having only the clamper 22 can sufficiently firmly hold the H-shaped steel material 1 and sufficiently drive the H-shaped steel material 1 into the ground. Further, a plurality of holding members may be movably supported by the frame and hold the buried member in cooperation with each other. Further, for example, the holding member is formed in a wedge shape, and the embedded member holding mechanism is moved by the inclined cam surface that slides on the wedge-shaped holding member. A mechanism for pressing toward the embedded member may be used.

Although the embedding apparatus of the above embodiment is configured to be suitable for embedding an H-shaped steel material as an embedding member, the embedding apparatus of the present invention can also be applied to a case where a sheet pile type steel material is embedded as an embedding member. In this case, the vertical cross-sectional shape of the sandwiching member may be appropriately selected according to the surface shape of the sheet steel. Further, the embedding device of the present invention can be applied to, for example, embedding a concrete pile as the embedding member, for example, when embedding a member in relatively soft ground, and in this case, in order to sandwich the concrete pile, The holding member may be, for example, a drum-shaped member corresponding to the cylindrical surface shape of the pile. Further, the embedding apparatus of the present invention is applicable not only to the case where the embedding member is embedded alone as in the above embodiment but also to the case where a plurality of the embedding members are embedded side by side for earth retaining and the like, as well as the case of the above embodiment. Can be applied.

[Brief description of the drawings]

FIG. 1 is a side view showing an entire embodiment of an embedding device of an embedding member of the present invention.

FIG. 2 is an enlarged side view showing a buried member support portion and an air hammer in the apparatus of the embodiment shown in FIG.

FIG. 3 is an enlarged front view of a buried member holding device of a buried member supporting portion in the apparatus of the embodiment shown in FIG.

FIG. 4 is an enlarged bottom view showing a buried member holding member of a buried member support portion in the apparatus of the embodiment shown in FIG.

FIG. 5 is a cross-sectional view taken along line VV of FIG. 2, showing the embedded member holding tool in a further enlarged manner.

FIG. 6 is an explanatory diagram showing an embedding process of an H-shaped steel material by the apparatus of the above embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 H-shaped steel material (embedding member) 2 Embedding member support part 3 Ground 4 Air hammer (Embedding member urging part) 8 Embedding member holding tool 9 Holding tool support mechanism 18 Frame 22 Clamper (Holding member) 24 Embedding member holding mechanism

Claims (15)

[Claims] A buried member supporting portion for supporting the elongated buried member in a state of extending in an up-down direction; and a downwardly biasing buried member supported by the buried member supporting portion. An embedding member embedding device comprising: an embedding member urging portion (4) that is pushed into the ground (3), wherein the embedding member support portion (2) holds a side surface of the embedding member. (8) and a holding device support mechanism (9) for supporting the embedded member holding device so that the embedded member holding device can be moved up and down, wherein the embedded member urging section (4) pushes the embedded member holding device downward. An embedding device for an embedding member, which is to be biased. 2. A frame (18), which is supported by the holding member support mechanism (9) and surrounds a side surface of the embedded member (1), comprises a frame (18); By converting the downward and upward movement of the frame with respect to the buried member into an approach and separation movement of a holding member (22) movably supported inside the frame with respect to a side surface of the buried member, A burying member holding mechanism (24) for urging the holding member toward the side surface of the embedded member by lowering the frame and holding the side surface of the embedded member by the holding member. The embedding device of an embedding member according to claim 1, characterized in that: 3. The holding member (22) is movably supported by one or more of the frame (18) and holds the embedded member (1) between the holding member and the frame. The embedding device for an embedding member according to claim 2. 4. The burying member embedding device according to claim 2, wherein a plurality of the holding members are movably supported by the frame, and hold the burying member in cooperation with each other. 5. The holding member (22) has a columnar shape with at least a part of a side surface having a convex curved surface, and the embedded member holding mechanism (24) has a convex curved surface on a side surface of the holding member. 3. A mechanism for eccentrically supporting the holding member to the frame at a position on a horizontal straight line extending out of the position of the center axis with respect to the frame and extending parallel to the center axis. An embedding device for an embedding member according to any one of claims 1 to 4. 6. The embedded member urging section (4) drives the hammer up and down by compressed air to generate a downward impact force by the inertia force of the hammer, and the impact force causes the embedded member clamper (8) to move downward. 6. The device for embedding a buried member according to any one of claims 1 to 5, wherein the device is urged downward. 7. The buried member urging portion is supported by the holding member support mechanism and presses the piston with hydraulic pressure to generate a downward pressing force, and the pressing force causes the burying member holding member to face downward. Characterized by the fact that
An embedding device for an embedding member according to any one of claims 1 to 5. 8. The burying member embedding device according to claim 1, wherein said burying member is an H-shaped steel material. 9. The burying member embedding device according to claim 1, wherein the burying member is a sheet pile type steel material. 10. A frame (18) that is supported by the holding device support mechanism (9) and surrounds a side surface of the embedded member (1), and the frame descends and rises with respect to the embedded member. The movement is converted into an approach and a separation movement of the holding member (22) movably supported inside the frame with respect to the side surface of the embedded member, so that the holding member is moved downward by the frame with respect to the embedded member. The burying member according to claim 1, further comprising a burying member clamping mechanism (24) for urging the buried member toward the side surface and clamping the side surface of the burying member by the clamping member. Embedded member holding tool used in the embedding device of (1). 11. The holding member (22) is movably supported by one or more of the frame (18) and holds the embedded member (1) between the holding member and the frame. An embedded member holding device according to claim 10. 12. The burying member holding device according to claim 10, wherein a plurality of the holding members are movably supported by the frame and hold the burying member in cooperation with each other. 13. The holding member (22) has a columnar shape with at least a part of a side surface having a convex curved surface, and the embedded member holding mechanism (24) has a convex curved surface on a side surface of the holding member. 11. A mechanism for eccentrically supporting the holding member so as to be rotatable with respect to the frame at a position on a horizontal straight line extending out of the position of the center axis with respect to the frame and extending parallel to the center axis. An embedded member holding device according to any one of claims 1 to 12. 14. The embedded member holding device according to claim 10, wherein the embedded member (1) is an H-shaped steel material. 15. The burying member holding tool according to claim 10, wherein the burying member is a sheet pile type steel material.