JP3268637B2 - Sheet pile support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet pile support device.

[0002]

2. Description of the Related Art Conventionally, a sheet pile supporting apparatus (hereinafter referred to as a conventional example) disclosed in Japanese Patent Application Laid-Open No. 58-73623 has been proposed.

In this conventional example, as shown in FIG. 5, a support 23 is provided on one of sheet pile holders 22 and 22 'for supporting sheet piles attached to the respective excavated wall faces.
A base 25 having a U-shaped cross section provided with a jack 24 at the tip is pivotally mounted.

[0004] The pivoting structure of this conventional example is a structure in which a base 25 is fitted on a support 23 and two pins 26a and 26b are penetrated. In a state where two pins 26a and 26b are provided. The jack 24 is fixed to the support 23, and the support 23 and the jack 24 are in a linear positional relationship. When the pin 26b is removed, the jack 24 can be horizontally rotated about the pin 26a. .

[0005] In this conventional example, the jack comprises a sheet pile holding member 22.
When it is fixed to and does not rotate horizontally, when performing piping work or removal work of long pipes etc. in the excavation groove,
The jack was in the way and all of the jack had to be removed, which solved the disadvantage of extremely poor workability.The tip of the jack 24 was released from the sheet pile holder 22 ',
By rotating the jack 24 horizontally, the jack 24 is attached to the sheet pile holding body 22 so that the work of removing or piping a long pipe or the like can be performed well.

However, the inventor of the present invention has conducted various tests. In the prior art, the base 25 (jack 24) was rotated by 90 ° with respect to the support 23 and attached to the sheet pile presser 22.
Since there is nothing to prevent the rotation of the jack 24, the jack 24 may return and rotate at the time of piping work or removal work of a long pipe or the like. It is very inconvenient and inferior in workability because it is necessary to work while checking whether or not it is in a state where the jack 24 is returned. There is.

The present invention provides a sheet pile supporting device which solves such a problem.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

A sheet pile support device for supporting a sheet pile 1 attached to an excavation wall surface E, comprising a sheet pile pressing body 2 provided with a support body 3 composed of an upper body 7 and a lower body 8, and the upper body 7 and the lower body 8 are respectively provided. First hole 7a, 8a, second hole 7b, 8b and third hole 7
c, 8c are provided, and a base 5 provided with a telescopic member 4 at the distal end thereof is connected to the support 3, and first holes 7a, 8a of the upper body 7 and the lower body 8 at the base end of the base 5 are provided. Third holes 7c, 8c
The holes 5a and 5b are provided at positions corresponding to the above, and the locking portion 5c is provided on the side of the base end of the base 5,
The connection between the base 5 and the support 3 is such that the base 5 is fitted between the upper body 7 and the lower body 8 of the support 3, and the first holes 7 a of the upper body 7 and the lower body 8 of the support 3 are provided. , 8a and the third hole 7c,
When the support 3 and the base 5 are connected by inserting detachable pins 6 and 12 respectively into the base 8c and the holes 5a and 5b at the base end of the base 5, the support 3 and the base 5 The pin is held in a linear positional relationship, and one of the pins 6 is removed, the base 5 is rotated with respect to the support 3 to a predetermined angle, and the pins 6 are removed from the second holes 7 b and 8 b of the support 3. When you insert 6,
The structure is such that the base 5 cannot be rotated with respect to the support 3 by the engaging action between the pin 6 and the locking portion 5c of the base 5, and is held at the predetermined angle. It relates to a sheet pile support device.

Further, in the sheet pile supporting device according to the first aspect, a notch formed on one side of the base end of the base 5 is employed as the locking portion 5c. When rotated about 90 °, the second holes 7b, 8
The present invention relates to a sheet pile support device characterized in that insertion of the pin 6 into the pin b is allowed.

[0011]

According to the present invention, the two pins 6 and 12 are inserted into the first holes 7a and 8a and the third holes 7c and 8c of the support 3 and the holes 5a and 5b at the base end of the base 5. When the support 3 and the base 5 are connected by insertion, the support 3 and the base 5 can be maintained in a linear positional relationship, and one of the pins 6 is removed, and the base 5 is removed. When the pin 6 is rotated to a predetermined angle with respect to the support 3 and the removed pin 6 is inserted into the second holes 7 b and 8 b of the support 3, the pin 6 and the locking portion 5 c of the base 5 are connected to each other. The pin 6 is simply removed, the hole into which the pin 6 is inserted is changed, or the original By simply re-inserting into the hole, the base 5 can be rotated with respect to the support 3 to a desired state. In addition, since it is impossible to rotate in this desired state, it is possible for a worker to carry out efficient work, and a sheet pile supporting device that exhibits a very excellent effect despite its simple structure. Become.

According to the second aspect of the present invention, when the base body 5 is rotated by about 90 ° with respect to the support 3, the cutout portion inserts the pin 6 into the second hole 7 c of the support 3. Since the pin is inserted, the state in which the elastic member 4 is attached to the sheet pile holding body 2 is maintained when the pin 6 is inserted. In addition, since a good work can be performed, the worker can carry out the work efficiently, and the sheet pile supporting device has a simple structure and exhibits extremely excellent effects.

[0013]

1 to 4 show one embodiment of the present invention, which will be described below.

Reference numeral 1 denotes a sheet pile pierced into the bottom surface of a concave groove formed by excavating the ground and disposed alongside the left and right excavation wall surfaces E, 4 denotes a known hydraulic jack as an elastic member, 4a denotes a hydraulic jack 4 A water introduction hose 11 for introducing water pressure is a water pipe, a sewer pipe, and a communication line pipe as long pipes.

As shown in FIGS. 1 and 2, the support 3 of this embodiment is a metal U-shaped member fitted on the sheet pile presser 2.
The upper body 7 and the lower body 8 are protrudingly provided in a horizontal direction on the upper and lower bodies 13, and each of the upper body 7 and the lower body 8 has three holes (first holes 7 a, 8 a, second holes 7 b, 8 b) in the width direction. And third holes 7c, 8
c) is drilled.

A support 3 fixed to the sheet pile presser 2
At the opposing position, the sheet pile presser 2 is provided with a mounting member 14 to which the tip of the hydraulic jack 4 is attached.
In the case of this embodiment, the mounting body 14 employs a member having the same structure as the support body 3.

The upper and lower surfaces of the U-shaped member 13 are provided with through holes 7d for connecting the U-shaped member 13 to the sheet pile presser 2 and the telescopic vertical member 9.

The base 5 is a metal cylindrical body as shown in FIGS. 1 and 2, and the support 3
An upper protruding body 15 and a lower protruding body 16 which are fitted between the upper body 7 and the lower body 8 are protruded. The upper protruding body 15 and the lower protruding body 16 respectively have holes 5a, 5b is provided. The holes 5 a and 5 b are provided in the upper body 7 of the support 3.
When the base end is fitted between the lower body 8 and the lower body 8, the support body 3 is provided at a position matching the first holes 7a, 8a and the third holes 7c, 8c.

The upper projecting body 15 and the lower projecting body 16
Cutouts 5c are provided at both left and right corners.

Further, the tip of the base 5 is provided with a hydraulic jack 4
The through hole 5d for connecting the base 5 and the hydraulic jack 4 is provided on the upper surface of the tip. Reference numeral 4b denotes a through hole 5d of the base 5.
It is a connection hole that matches.

The pins 6 and 12 are formed of a metal member as shown in FIG.
a, 8a, the second holes 7b, 8b, the third holes 7c, 8c, and the holes 5a, 5b provided in the base member 5, and the first hole 7a, the second hole 7b, Third hole 7
Collar portions 6a and 12a are formed on the peripheral edge of c. Of the pins 6, 12, the first pin 6 with the handle 6b is inserted through the first hole 7a, 8a or the second hole 7b, 8b and the hole 5a, and is inserted into the third hole 7c, 8c and the hole 5b. The second pin 12 is inserted through and pivotally connects the base 5 and the support 3. The second pin 12, like the first pin 6, may be detachable so that the hydraulic jack 4 can be horizontally rotated in either the left or right direction.

The notch 5c is used to remove the first pin 6 of the pins 6 and 12 holding the base 5 and the support 3 in a linear positional relationship, and to connect the base 5 to the support 3. When the detached first pin 6 is inserted into the second holes 7b and 8b of the support 3 by horizontal rotation to a predetermined angle, the base 5 is brought into contact with the support 3 by the engaging action with the first pin 6. This makes it impossible to rotate, and holds at the predetermined angle. More specifically, the notch 5 c allows the base 5 to be substantially 9
Only when rotated by 0 °, the second holes 7b, 8
It is formed in a shape that allows the insertion of the pin 6 into the pin b (see FIG. 4).

From the above, the base 5 is fitted with the base end of the base 5 between the upper body 7 and the lower body 8 of the support 3, and in this state, the third holes 7c, 8c of the upper body 7 and the lower body 8, respectively. When the metal second pin 12 is inserted only into the base 5 and the hole 5b at the base end of the base 5, the base 5 is rotatable in the horizontal direction with the second pin 12 as a fulcrum relative to the support 3. The first hole 7a, 8a and the third hole 7 of the upper body 7 and the lower body 8 of the support 3 are to be connected.
When the first pin 6 and the second pin 12 are inserted into the base holes c and 8c and the holes 5a and 5b at the base end of the base 5, the base 5 and the support 3 are held in a linear positional relationship. (See FIGS. 3 and 4).

Since the present embodiment is constructed as described above, the sheet pile 1 attached to the left and right excavated wall surfaces E of the concave grooves formed in the ground is supported by the hydraulic jack 4 and, for example, the long pipe 11 When performing the pipe work or the removal work, the tip of the hydraulic jack 4 is detached from the attachment body 14 connected to the other sheet pile presser body 2 and provided on both left and right sides of the continuous portion of the base 5 and the support body 3. By removing one of the first pins 6 of the pins 6 and 12 and rotating the base 5 (hydraulic jack 4) with the other second pin 12 as a fulcrum in this state,
This makes it possible to position the hydraulic jack 4 in a state where it does not hinder the work of piping or removing the long pipe 11 or the like. At this time, in this embodiment, since the rotation of the base 5 is prevented by the one removed first pin 6, the base 5 and the hydraulic jack 4 do not interfere with the piping work or the removal work. Will be maintained.

Thus, according to the present embodiment, the operation of the pins 6 and 12 provided on both the left and right sides of the continuous portion of the base 5 and the support 3 allows the hydraulic jack 4 to support the sheet pile 1. Of course, the expansion / contraction member 4 can be positioned so as not to hinder the piping work or the removing work of the long pipe 11 or the like by rotating the base 5. Since the state can be maintained, the worker can perform an efficient work, and the extremely effective effect can be exhibited in spite of the simple structure.

Further, in this embodiment, since the hydraulic jack is employed as the expansion and contraction member 4, unlike the screw jack, for example, the operator can favorably support the sheet pile 1 by remote control without entering the excavation groove. It can be done safely, it can be done safely, and it is very inexpensive. In addition, the expansion and contraction operation is different from the case of the hydraulic jack, and water is introduced into or out of the hydraulic jack 4 (discarded as it is). It can be done with a simple operation.

In this embodiment, two pins 6, 12 are inserted into the first holes 7a, 8a and the third holes 7c, 8c of the support 3 and the holes 5a, 5b at the base end of the base 5. When the support 3 and the base 5 are connected to each other, the support 3 and the base 5 can be maintained in a linear positional relationship. Is rotated to a predetermined angle with respect to the support 3, and when the removed first pin 6 is inserted into the second holes 7 b and 8 b of the support 3, the first pin 6 and the base 5 are removed. A hole for simply removing or inserting the first pin 6 such that the base body 5 cannot rotate with respect to the support body 3 due to the engagement action with the locking portion 5c and is held at the predetermined angle. By simply changing or reinserting the base 5 into the original hole, the base 5 is rotated with respect to the support 3 to a desired state. It is possible to make it impossible to rotate in this desired state, so that the worker can perform an efficient work. become.

In this embodiment, when the base 5 is rotated by approximately 90 ° with respect to the support 3, the notch 5 c allows the first pin 6 to be inserted into the second hole 7 c of the support 3. Therefore, when the first pin 6 is inserted, the state in which the hydraulic jack 4 is attached to the sheet pile presser body 2 is maintained. Since the work can be performed quickly and well, the worker can perform the work efficiently, and can exhibit extremely excellent effects with a simple structure.

Further, in this embodiment, since the worker can perform the work without entering the excavated groove in all the work, an excellent effect in securing a safe work environment is exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic configuration explanatory view of the present embodiment.

FIG. 2 is a perspective view illustrating a main part according to the embodiment.

FIG. 3 is a plan view of a main part according to the embodiment.

FIG. 4 is an operation explanatory diagram of a main part according to the embodiment.

FIG. 5 is a schematic configuration explanatory view of a conventional example.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 sheet pile 2 sheet pile holder 3 support 4 elastic member 5 base member 5a hole 5b hole 5c locking portion 6 pin 7 upper body 7a first hole 7b second hole 7c third hole 8 lower body 8a first hole 8b second hole 8c Third hole 12 pin

Claims (2)

(57) [Claims] 1. A sheet pile support device for supporting a sheet pile attached to an excavation wall surface, wherein a sheet pile holding body is provided with a support composed of an upper body and a lower body, and the upper body and the lower body are provided with a first hole and a second hole, respectively. Holes and third holes are provided, and a base body provided with an elastic member at the distal end is connected to the support, and the base end of the base body matches the first and third holes of the upper body and the lower body. Is provided with a hole, and a locking portion is provided on the side of the base end portion of the base, and the base is fitted between the upper body and the lower body of the support by connecting the base and the support. When the support and the base are connected by inserting detachable pins into the first hole and the third hole of the upper body and the lower body of the support and the hole at the base end of the base, respectively, The support and the base are held in a linear positional relationship,
When one of the pins is removed, the base is rotated with respect to the support to a predetermined angle, and when the removed pin is inserted into the second hole of the support, the pin and the locking portion of the base are Characterized in that the base body is not rotatable with respect to the support body by the engaging action of (i), and is held at the predetermined angle. 2. The sheet pile supporting device according to claim 1 ,
A notch formed on one side of the base end of the base is used as the locking portion. When the base is turned by approximately 90 ° with respect to the support, a pin is inserted into the second hole of the support. A sheet pile supporting device configured to allow insertion of a sheet pile.