JP2012036587A - Pedestal for batter pile penetration and burial method of batter pile using the pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedestal for batter pile penetration, which corresponds to any inclination angle and has a simple structure enabling easy penetration.SOLUTION: A pedestal (10) for batter pile penetration that supports a penetration apparatus (5) for a pile (1) to penetrate soil in a position to incline the pile to the ground comprises a plate shaped base plate (12) having a hole (12a) through which the pile can pass, an inclined plate (15) which is a plate shaped member having a hole (15a) through which the pile can pass and which is rotatably connected to an axis at an end of the base plate, and angle adjustment means (18) which holds a predetermined arrangement angle between the base plate and the inclined plate.

Description

  [Technical Field] The present invention relates to a slant pile penetration base used when a pile, which is a foundation member for civil engineering and construction, is buried in an inclined posture on the ground, and a slant pile embedding method using the base.

  In the field of civil engineering and architecture, piles are buried in the ground as the foundation of structures. There are several types of piles and pile burial methods. For example, there is a rotary penetrating steel pipe pile method that penetrates the ground while rotating a tubular steel pipe pile. A tip wing formed in a predetermined shape is attached to the tip of the steel pipe that is the main body of the pile. By rotating the steel pipe pile, a propulsive force is generated in the tip wing in the ground, and the steel pipe pile can be penetrated deep into the ground.

  Steel pipe piles are basically buried with the depth direction of the ground as the longitudinal direction. In addition to being vertical, steel pipe piles may be buried with an inclination. A pile piled up vertically is sometimes called a direct pile, and a pile piled up with an inclination is called a diagonal pile. Diagonal piles can effectively suppress horizontal displacement caused by earthquakes, etc., and may be used as the foundation of seismic structures.

  Pile burial is carried out by installing on the ground a penetration device that grips, rotates, and pushes (penetrates) the pile into the ground. Therefore, when burying a slant pile, it is necessary to incline the penetration device at a predetermined angle by some means and install it on the ground. For example, Patent Document 1 discloses a technique in which wedges stacked alternately are arranged below the penetration device, and the penetration device is inclined by removing one of the wedges. In other words, the penetrating device is tilted using the inclination of the wedge. Patent Document 2 discloses a technique in which telescopic jacks (total of four units) are installed on each leg portion of the penetrating device, and the penetrating device is inclined by adjusting the amount of stretching.

Japanese Patent No. 3737421 Japanese Patent No. 4084777

However, when a wedge-shaped mount is used as described in Patent Document 1, it is necessary to prepare a wedge for each inclination angle. In addition, there is a problem that it is necessary to arrange one wedge and a heavy machine for pulling it out only for the installation.
Moreover, in the gantry described in Patent Document 2, four telescopic jacks are required, and the cost of producing the gantry tends to increase. In addition, it was necessary to prepare a separate hydraulic device for individually extending and retracting the four jacks, which was expensive and troublesome.

  Therefore, in view of the above problems, the present invention provides an inclined pile penetration mount that can handle an arbitrary inclination angle, has a simple structure, and is easy to install the penetration device, and an inclined pile embedding method using the mount. The task is to do.

  The present invention will be described below. Here, for ease of understanding, the reference numerals shown in the drawings are added together, but the present invention is not limited thereto.

  The invention according to claim 1 is an oblique pile penetrating base (10) for supporting the penetrating device (5) penetrating the pile (1) into the ground in a posture in which the pile is inclined with respect to the ground. Is a plate-like member having a plate-like substrate (12) provided with a hole (12a) through which a pile can pass, and provided with a hole (15a) through which a pile can penetrate. It is an inclined pile penetrating base comprising an inclined plate (15) that is movably connected, and provided with angle adjusting means (18) that holds the substrate and the inclined plate at a predetermined angle.

  The invention according to claim 2 is a wedge-type auxiliary device installed so as to be sandwiched between the base plate (12) and the inclined plate (15) in the inclined pile penetration base (10) according to claim 1. A member (19) is further provided.

  The invention according to claim 3 is the side of the inclined plate (15) opposite to the side facing the substrate (12) in the inclined pile penetration base (10) according to claim 1 or 2. In addition, a protruding stopper (17) is further provided at the end of the rotating shaft.

  According to a fourth aspect of the present invention, in the oblique pile penetrating base (10) according to any one of the first to third aspects, the hole (12a) provided in the substrate (12) is rotatable. It is a long hole whose major axis is the radial direction of rotation of the provided inclined plate (15).

  According to the fifth aspect of the present invention, the inclined plate (15) of the inclined pile penetration base (10) according to any one of the first to fourth aspects is rotated, and the substrate ( 12) It is a slant pile embedding method including the process which hold | maintains an inclined board at a predetermined angle, and installs a penetration apparatus (5) via an alignment board (8) on an inclined board.

  The invention according to claim 6 is a penetrating device via an alignment plate (8) on the inclined plate (15) of the stake pile penetrating base (10) according to any one of claims 1 to 4. (5) is an inclined pile embedding method including a process of rotating the inclined plate and holding the substrate (12) and the inclined plate at a predetermined angle by the angle adjusting means (18).

  Invention of Claim 7 is a steel pipe pile in which the pile (1) penetrated has a tip wing | blade (3) in the slant pile embedding method of Claim 5 or 6, and a steel pipe pile is in the case of penetration. It is characterized by being rotated.

  According to the present invention, there is provided a tilt pile penetrating mount that can handle an arbitrary inclination angle and can be easily installed in a penetrating pile, and a tilt pile embedding method using the mount, in accordance with the present invention. be able to.

It is the figure which represented typically the scene where a slant pile is embed | buried by the mount for slant pile penetration concerning one embodiment. It is the top view and front view of a mount for slant pile penetration. It is a figure explaining the scene which changed the angle of the inclined board of a slope pile penetration stand. It is a figure explaining the form of an auxiliary member. It is a front view of the mount for oblique pile penetration in which the auxiliary member was installed. It is a front view of the mount for oblique pile penetration concerning other embodiments.

  The above-mentioned operation and gain of the present invention will be clarified from the following embodiments for carrying out the invention. Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to these embodiments.

FIG. 1 schematically shows a scene in which a penetrating device 5 is installed via an alignment plate 8 on an oblique pile penetrating base 10 according to one embodiment, and a steel pipe pile 1 is held here. It is a figure. FIG. 1 shows an example in which a steel pipe pile 1 is penetrated into the ground at an angle θ with respect to the vertical direction.
The penetration device 5 is a device for gripping, rotating, and pushing (penetrating) the steel pipe pile 1 into the ground, and the alignment plate 8 is arranged so that the penetration device 5 is aligned by placing the penetration device 5 here. It is the comprised plate-shaped member.
The steel pipe pile 1 is generally penetrated into the ground as follows. That is, the steel pipe pile 1 is provided with the pile main body 2 which is a main body, and the front-end | tip wing 3 arrange | positioned at the lower end. The steel pipe pile 1 is gripped by the penetrating device 5 tilted at an angle (θ) to be tilted. The steel pipe pile 1 held by the penetration device 5 is given a rotational force and a pushing force by the penetration device 5 and penetrates into the ground G. At this time, the penetration device 5 is tilted to a predetermined angle θ by being installed on the slant pile penetration base 10. Hereinafter, the slant pile penetration base 10 will be described in detail.

  FIG. 2 shows a plan view (FIG. 2 (a)) and a front view (FIG. 2 (b)) of the stake pile penetration base 10. The plan view is a view seen from the top of FIG. 1, and the front view is a view seen from the direction of FIG. Here, FIG. 2 shows a posture in which the inclined plate 15 is inclined with respect to the substrate 12 at an angle θ.

The slant pile penetration base 10 includes a base member 11, an apparatus installation member 14, and an angle adjusting means 18.
The foundation member 11 is a member that serves as a foundation of the oblique pile penetration base 10, and most of the foundation member 11 is constituted by a plate-like substrate 12. As can be seen from FIG. 2B, the substrate 12 is provided with a circular hole 12a penetrating in the thickness direction. The hole 12a has a sufficient size that allows the steel pipe pile 1 to penetrate through the inside even when the oblique pile is buried.
A bearing 13 is disposed at the end of the base member 11 on one surface side of the substrate 12. The bearing 13 is a member configured to be able to pivotably receive a rotation shaft 16 described later.

The device installation member 14 is a member on which the penetration device 5 is placed via the alignment plate 8, and most of the device installation member 14 is configured by a plate-like inclined plate 15. As can be seen from FIGS. 2A and 2B, the inclined plate 15 is provided with a circular hole 15a penetrating in the thickness direction. The hole 15a has a sufficient size that allows the steel pipe pile 1 to penetrate through the inside even when the oblique pile is buried.
In addition, a rotating shaft 16 is provided at the end portion of the inclined plate 15 of the apparatus installation member 14 at the end portion on the above-described bearing 13 side. The rotating shaft 16 is rotatably inserted into the bearing 13. Thereby, the inclined plate 15 of the apparatus installation member 14 can be rotated around the rotation shaft 16 with respect to the substrate 12 of the base member 11, and the angle formed by both can be changed.

  Of the inclined plate 15 of the device installation member 14, the surface opposite to the side facing the substrate 12, and the end on the rotating shaft 16 side, are shown in FIGS. 2 (a) and 2 (b). As can be seen, a stopper 17 may be provided. The stopper 17 is a member provided so as to protrude from the surface of the inclined plate 15. That is, as can be seen from FIG. 1, the stopper 17 is configured to be able to hook the alignment plate 8 so as to prevent the alignment plate 8 from slipping even when the inclined plate 15 is inclined. .

  The angle adjusting means 18 is a means for holding the substrate 12 and the inclined plate 15 in a posture in which the substrate 12 and the inclined plate 15 form a predetermined angle. The angle adjusting means 18 of the present embodiment is a rod-shaped member having a rectangular cross section, and is arranged so that one end thereof is fixed to the side surface of the substrate 12 and the other end is fixed to the side surface of the inclined plate 15 as shown in FIG. The The angle adjusting means 18 is provided on each of one side surface of the substrate 12 and the inclined plate 15 and the other side surface on the opposite side.

  Further, the angle adjusting means 18 can change the position where it is arranged. Thus, the same angle adjusting means 18 can cope with the change of the inclination angle θ. A specific example is shown in FIG. That is, as shown in FIG. 3A, the angle adjusting means 18 is moved and fixed to the rotating shaft 16 side, whereby the inclined plate 15 is moved at an angle θ2 larger than the angle θ in FIG. Can be held. On the other hand, as shown in FIG. 3 (b), the angle adjusting means 18 is moved to the opposite side to the rotating shaft 16 side and fixed, whereby an angle θ3 smaller than the angle θ in FIG. 2 (b). In this way, the inclined plate 15 can be held.

  In addition to the above, the adjustment of the inclination angle θ may be performed by using other angle adjusting means having different lengths while keeping the position where the angle adjusting means 18 is arranged.

  The means for fixing the angle adjusting means 18 to the substrate 12 and the inclined plate 15 is not particularly limited. For example, fixing with a bolt can be mentioned. At this time, for example, a plurality of parallel screw holes are formed in the side surfaces of the substrate 12 and the inclined plate 15, and bolts that pass through the holes provided at the end of the angle adjusting means 18 are used as the screw holes. It can be screwed and fixed. And the screw hole to be used may be selected according to the required inclination angle among the plurality of screw holes arranged in parallel.

  According to the oblique pile penetrating base 10 as described above, the inclined plate 15 can be held at an arbitrary inclination angle with respect to the substrate 12, and the structure is simple. Here, each of the above-described components included in the oblique pile penetrating base 10 has sufficient strength to support the penetrating device 5.

  In the present embodiment, one member is disposed on each of the side surface and the other side surface of the substrate 12 and the inclined plate 15 as the angle adjusting means 18, but the strength and stability for holding the penetration device are further increased. From the viewpoint of improvement, a plurality of members may be disposed on each of the substrate and one of the inclined plates and the other side surface.

  Further, an auxiliary member that is an auxiliary member that receives the weight of the penetrating device 5 may be inserted so as to be sandwiched between the substrate 12 and the inclined plate 15. Although the shape is not specifically limited as an auxiliary member, For example, a wedge-shaped member can be mentioned. An example of the form of the auxiliary members 19, 19 'is shown in a perspective view in FIG.

The auxiliary member 19 shown in FIG. 4A is formed by one wedge-shaped member, and a hole 19a is provided so as to penetrate the slope and the surface on the opposite side. The hole 19a is formed in such a size that it can penetrate even when the steel pipe pile 1 is inclined.
The auxiliary member 19 ′ shown in FIG. 4B is formed by two wedge-shaped members 19′a and 19′b. The two wedge-shaped members 19′a and 19′b are arranged at intervals such that the steel pipe pile 1 can pass between them.
The auxiliary member is inserted so as to be sandwiched between the substrate 12 and the inclined plate 15 as shown in FIG. FIG. 5 shows the case of the auxiliary member 19 as an example.

  Here, the holes 12a, 15a, and 19a provided in the base plate 12, the inclined plate 15, and the auxiliary member 19 of the oblique pile penetrating platform 10 described above are not necessarily circular, but are elliptical or polygonal. May be. When the slant pile is penetrated into the ground, a larger space is required in the radial direction in which the inclined plate 15 can be rotated. Therefore, an ellipse having the major axis in the radial direction may be used.

  Further, the angle adjusting means is not limited in its form as long as the angle between the substrate and the inclined plate is a predetermined angle and can be held. In FIG. 6, the figure explaining the mount 20 for oblique pile penetration provided with the angle adjustment means 28 of another form was shown. The oblique pile penetrating platform 20 is different from the oblique pile penetrating mount 10 in the angle adjusting means 28, and the other members are common to the oblique pile penetrating mount 10, so that the reference numerals are the same and the description thereof is omitted.

The angle adjusting means 28 of the inclined pile penetrating base 20 is arranged between the substrate 12 and the inclined plate 15 and can change its height as shown by an arrow VI in FIG. The inclined plate 15 can be held at an arbitrary inclination angle with respect to the substrate 12 also by the inclined pile penetration base 20 having such an angle adjusting means. Moreover, the structure is simple.
Here, as the angle adjusting means capable of changing the height in this way, a mechanical or hydraulic extension jack can be mentioned. In this embodiment, it is possible to configure with one jack, and the structure is simple.

Next, the oblique pile embedding method using this will be described taking the oblique pile penetration base 10 as an example.
The inclined pile penetration base 10 is installed on the ground based on the position where the steel pipe pile 1 should be penetrated. The inclined plate 15 is tilted with respect to the substrate 12 and held at the same angle as the inclined angle of the steel pipe pile 1 by the angle adjusting means 18.
On the other hand, the penetration device 5 is installed on the alignment plate 8 placed on the ground in another place, and the steel pipe pile 1 is gripped.
The alignment plate 8, the penetrating device 5, and the steel pipe pile 1 combined in this manner are lifted by a crane or the like and placed on the inclined plate 15 of the above-described oblique pile penetrating base 10.
After the installation as described above is completed, the penetration device 5 is operated to start the penetration of the slant pile.
As described above, the oblique pile embedding method using the oblique pile penetration mount 10 makes it possible to bury the oblique pile easily and accurately by inclining the penetration device 5.

In addition to the above, oblique piles can also be buried as follows.
That is, the inclined pile penetration base 10 is installed on the ground based on the position where the steel pipe pile 1 should be penetrated. And the penetration apparatus 5 is installed on the mount 10 for oblique pile penetration via the alignment board 8, and the steel pipe pile 1 is gripped.
Thereafter, the inclined plate 15, the alignment plate 8, the penetrating device 5, and the steel pipe pile 1 are inclined at a predetermined angle by lifting the end of the inclined plate 15 opposite to the rotating shaft 16 with a crane or the like. The angle is held by the angle adjusting means 18.
After the installation as described above is completed, the penetration device 5 is operated to start the penetration of the slant pile.

  The above-described inclined pile embedding method can be similarly performed even when the auxiliary members 19 and 19 ′ are used and when the inclined pile penetrating base 20 is applied.

  Although the above description demonstrated the example which rotates and penetrates a steel pipe pile, a pile is not limited to a steel pipe pile, Moreover, it is not limited to rotating and penetrating. That is, the inclined pile penetrating mount can be applied as a tilt pile penetrating mount other than the steel pipe pile and the rotating penetrating type.

DESCRIPTION OF SYMBOLS 1 Steel pipe pile 2 Pile main body 3 Tip wing 5 Penetration device 8 Positioning plate 10 Skew pile penetration base 11 Base member 12 Substrate 13 Bearing 14 Device installation member 15 Inclined plate 16 Rotating shaft 17 Stopper 18 Angle adjustment means 19 Auxiliary member 20 Mount for inclining piles

Claims (7)

A tilt pile penetrating platform that supports a penetrating device for penetrating a pile into the ground in a posture in which the pile is inclined with respect to the ground,
It has a plate-like substrate provided with a hole through which the pile can pass,
A plate-like member provided with a hole through which the pile can pass, and an inclined plate connected to the substrate so as to be rotatable about one end side,
A slant pile penetrating base comprising angle adjusting means for arranging and holding the substrate and the inclined plate at a predetermined angle.   The inclined pile penetrating mount according to claim 1, further comprising a wedge-shaped auxiliary member installed so as to be sandwiched between the substrate and the inclined plate.   3. A protrusion-like stopper is further provided on a side surface of the inclined plate opposite to a side facing the substrate, and at a rotation shaft side end thereof. The mount for oblique pile penetration described.   The said hole provided in the said board | substrate is a long hole which makes a long axis the radial direction of rotation of the said inclination board provided so that rotation was possible, The any one of Claims 1-3 characterized by the above-mentioned. The rack for penetrating slant piles as described in 1. The inclined plate of the stake pile penetrating base according to any one of claims 1 to 4 is rotated, and the substrate and the inclined plate are held at a predetermined angle by the angle adjusting means,
A slant pile burying method including a step of installing the penetration device on the inclined plate via an alignment plate. The penetration device is installed via an alignment plate on the inclined plate of the stake pile penetration rack according to any one of claims 1 to 4,
A slant pile embedding method including a step of rotating the inclined plate and holding the substrate and the inclined plate at a predetermined angle by the angle adjusting means.   The inclined pile embedding method according to claim 5 or 6, wherein the pile to be penetrated is a steel pipe pile having a tip wing, and the steel pipe pile is rotated during penetration.

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