JP3252365B2 - Pillar structure of sheet pile type support for excavation trench - 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 type support structure used for digging trenches when laying buried pipes such as gas pipes, water and sewer pipes, electric wires and telephone cables.

[0002]

2. Description of the Related Art Most of the laying work of buried pipes is usually carried out by an open-cutting method. As a typical method which has been conventionally carried out, for example, sheet piles are arranged on both sides of a trench excavated to a pipe burial depth and driven. , And apply the hovering material horizontally along it, and support the gap between the opposing hovering materials in the groove with cutting beams to prevent excavation of the sheet pile due to earth pressure, and proceed with excavation in the extension direction of the buried pipe There is a way to do that.

FIG. 13 shows an example of this method. According to this method, a sheet pile support 41 is provided at predetermined intervals along the inner wall of the excavation trench, and a cutting beam 42a is horizontally laid on the sheet pile support to maintain the space between the opposed supports 41. The flared material 43 attached between the struts on the same side of the excavation groove at the same position as the cutting beam 42a, and the plurality of sheet piles 44 arranged between the excavated groove and the flared material 43 form a sheet pile by earth pressure. This is a trench excavation method to prevent falling.

[0004] When the buried pipe is laid in the excavation groove in this way, first, the pipe 45 is added to the top of the sheet pile support 41 to extend the support 45.
After the pipe has been taken up to the position of the upper cutting beam 42a, another cutting beam 42c is mounted between the extending columns 45, and the load of the upper cutting beam 42a is deposited on this additional extending column beam 42c. The beam 42a is removed and the tube is taken in downward. Next, the upper cutting beam 42a is restored to a predetermined position, and the load of the lower cutting beam 42b is deposited on the upper cutting beam 42a. Thereafter, the lower cutting beam 42b is removed and the pipe is inserted into the groove. Lay it in place.

[0005] In the above-mentioned construction method, the sheet pile 44 is attached by a driving sheet pile method from above or a contact sheet sheet method from the excavated groove side depending on the condition of the local ground strength, the burial depth of the pipe, and the like. As the pillar 41 used,
Sheet pile supports using steel sheet piles and the like, and supports using channel members are used.

FIG. 14 is a perspective view showing an example of a sheet pile support structure. The sheet pile support 51 is a position suitable for stably receiving the earth pressure in the vertical direction as a support, and the upper side of the sheet pile 51 is about 1/5 from the shoulder to the entire depth of the excavation groove, and the lower section. Similarly, a square receiving plate 52 is attached to the side at about の of the shoulder by welding or other means.

A support member 53 is attached to the lower half of the receiving plate 52 in the horizontal direction. A support member 53 is inserted and fixed inside the box-shaped section. Receiving plate 5
A cutting beam 56 is further mounted on the top 2 via a receiving table 55. The cut beam 56 is formed of, for example, an extendable hydraulic or hydraulic jack, and keeps the distance between the opposed struts constant.

FIG. 15 shows a side view of an example of a column structure using a channel. The channel-shaped material column shown in this figure shows an example of the structure of a slide type column. The column 61 is composed of an upper column 61a formed by opposed flanges and webs, and a lower column 61b inserted therein. The support members 62a, 62b and the beam supporters 63a, 63b are attached at predetermined positions by welding or other means. In addition, 64 and 64a are guide holes and guide pins when the column is slid, and 65 is a hook portion to the ground.

[0009]

In the conventional column structures shown in FIGS. 14 and 15, the height of the support member is raised, for example, by 1/5 with respect to the design excavation depth (H). H and the lower side are similarly fixed in advance by welding or other means at a position 3 / 5.H from the shoulder.

However, in actual construction work, for example, when this is used for soft ground, etc., it is necessary to set up the bulging material and the cutting beam before digging down to the position of the predetermined bulging material, and to retain the earth. In order to cope with these problems, it has been desired to develop a column structure that can freely move the position of a belly-raising material or the like.

The present invention solves the above-mentioned problems, and provides a support structure of a sheet pile type support which can easily attach and detach a support member from a support when excavating and retaining a trench, and can adjust its position freely up and down. I do.

[0012]

According to a first aspect of the present invention, a column is provided opposite to each other at a constant interval along an inner wall of an excavation groove, and the opposing interval is kept constant by a cut beam. In the support structure of the sheet pile type supporting structure for preventing the collapse of the excavation groove by attaching a swelling material for supporting the sheet piles arranged in the horizontal direction, a locking member for locking the support to the side surface of the swelling material is attached. Further, a pressing rod having an eccentric curved surface formed at the tip thereof is rotatably attached to the bottom surface of the bulging material via a support base, and the locking member is locked to the end of the column and the pressing rod is attached to the inner surface of the column. , And the pressing rod is rotated to press and fix the belly-raising material to the support, which is a support structure of a sheet pile type support for an excavation groove.

In the first invention, one side of a pair of locking members for locking the column is fixed on the belly material,
This is a column structure in which the base end of the other one of the locking members is movably installed on the belly member, and the pressing rod is rotated to press and fix the belly member to the column.

Further, in the first invention, a saddle frame surrounding the column is attached instead of the locking member attached to the side surface of the belly-raising material, and the saddle frame is inserted into the column and the pressing rod is brought into contact with the inner surface of the column. And a column structure for rotating the pressing rod to press and fix the belly-raising material to the column.

As described above, according to the first aspect of the present invention, since the locking member and the pressing rod are directly attached to the belly-raising member without using the belly-raising support member, the structure is simplified. In this case, it is possible to lock the locking members at both ends of the sheet pile at an appropriate height of the column and press the inner surface of the column with the pressing rod to securely fix the belly-raised material to the column.

By forming the tip of the pressing rod with an eccentric curved surface, it is easy to attach and detach the column without pressing a large force when pressing or releasing the pressing. The position of the raising support member can be easily and freely adjusted up and down.

If the eccentric curved surface for pressing the column at the tip is formed as a smooth surface, the resistance force when pressing or releasing the pressing may be small, but if the eccentric curved surface is formed in a sawtooth shape, The contact resistance between the support and the support is also increased, and the support can be firmly held.

In this case, the movable locking member has a T-shaped bolt attached to the base end side, and the bolt is inserted into an elongated hole drilled in the belly member and rotated to slide on the belly member. By adopting a structure in which it is movably installed, the column can be attached and detached at any position. That is, it is not necessary to insert the upset material in advance into the sheet pile support or the like, and the locking tool can be engaged with the sheet pile support at an appropriate position or at an appropriate height of the support by sliding in the elongated hole. Furthermore, since the position of the movable locking member can be appropriately adjusted in the width direction of the support by the elongated hole, it is possible to cope with the support having various widths.

Without inserting the locking tool through the support,
As another structure to be mounted at an appropriate position or at an appropriate height, the base end of the movable locking tool may be rotatable by, for example, a hinge structure or the like.

Further, by attaching a saddle frame surrounding the column in place of the locking member, for example, for a column having a rectangular or groove-shaped cross section, the belly-raising material can be more firmly and reliably fixed to the column. .

According to a second aspect of the present invention, columns are provided opposite to each other at regular intervals along the inner wall of the excavation groove, and the opposing intervals are maintained constant by cutting beams. In a strut structure of a sheet pile type shoring for attaching a horizontally raised material to prevent collapse of an excavation groove, a pillar is provided on a side surface of a horizontally bent supporting material formed so as to horizontally hold the raised material. A locking tool for locking is attached, and furthermore, a pressing rod having an eccentric curved surface formed at the tip end is rotatably mounted on the bottom surface of the support member via a support base, and the locking tool is attached to an end of the support. A strut structure for a sheet pile type shoring for excavation grooves, wherein the strut is engaged with the strut and the strut is brought into contact with the inner surface of the strut, and the strut is turned upside down to press and fix the support material to the strut.

In the second aspect of the present invention, one side of the pair of locking members for locking the column is fixed to the supporting member by raising one side, and the base end of the other locking member is bent to the supporting member. The support structure is movably installed, and the support rod is pressed against the support by pressing the support rod to the support by rotating the pressing rod.

Further, in the second invention, a saddle frame surrounding the column is attached in place of the locking member attached to the side surface of the belly support member, and the saddle frame is inserted into the column and the pressing rod abuts on the inner surface of the column. Then, the support rod is rotated and the support rod is pressed and fixed to the support by rotating the pressing rod.

In the above-mentioned support structure to which the saddle frame is attached, a hinge is attached to an upper end or a lower end of the side member on the side opposite to the support of the belly support member so that the side surface of the support member can be opened. It is a pillar structure that can be mounted.

As described above, according to the second aspect of the present invention, the support member formed so as to horizontally hold the support member is used, and when the support member is fixed to, for example, a sheet pile support, At a suitable height of the column, the locking member is locked to both ends of the sheet pile, and the inner surface of the column is pressed by the pressing rod, so that the bulging material can be firmly fixed to the column.

As described above, fixing / releasing to the support and handling are also facilitated. The function of pressing and fixing the column with the pressing rod is the same as that of the first invention.

Here, the movable locking member is slidable on the support member by inserting the cotter through the elongated hole drilled in the support member and the pin hole on the locking member side to raise the locking member. By adopting the installation structure, it is not necessary to insert the support member in advance into the sheet pile support or the like, so that it can be easily attached and detached. It can bite the strut. Further, since the position of the movable locking member can be appropriately adjusted in the width direction of the column by the length of the elongated hole, it can be used for columns of various widths.

Without inserting the locking tool through the support,
As another structure to be mounted at an appropriate position or at an appropriate height, a structure in which the base end of the movable locking tool can be rotated by, for example, a hinge structure or the like may be used.

Further, by attaching a saddle frame surrounding the column in place of the locking member, for example, for a column having a rectangular or groove-shaped cross section, the belly-raising material can be more firmly fixed to the column.

In the above-mentioned support structure to which the saddle frame is attached, a hinge is attached to the upper end or the lower end of the side member on the side opposite to the support of the belly support member so that the side surface of the support member can be opened. Can be attached and detached, and the attachment and detachment of the belly-raising material becomes extremely easy.

[0031]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a strut structure for a sheet pile type support for an excavation trench according to the present invention.

FIGS. 1 and 2 are a bottom view and a cross-sectional view taken along the line AA of FIG. 1, respectively, showing a first embodiment in the case where, for example, a sheet pile support is used as a support in the support structure of the first invention. It is.

The support structure according to the first embodiment uses a sheet pile 1 as a support, and is provided at two places on the side of a laterally-raised material 3 that is horizontally held, for example, L-shaped locking members 4a,
4b, and a pressing rod 6 having an eccentric curved surface 7 formed at the tip thereof in the direction of the column 1 via a support base 5 so as to be rotatable.

The eccentric curved surface 7 at the tip of the pressing rod 6 is rotated to increase the stealing of the tip on the side that first contacts the column 1 so that the tip can easily contact and press the column. When the sheet pile support 1 is pressed or released, a large force is not required, and the sheet pile support 1 can be rotated without difficulty. In order to further facilitate the rotation of the pressing rod 6, a handle 6a having a required length is attached to the hand side of the pressing rod if necessary.

In this manner, when fixing the upset material 3 to the sheet pile support 1, the pressing rod 6 is loosened, and the locking members 4a, 4b are engaged with the ends 1a, 1b of the sheet pile support 1. The bulging material 3 is inserted through the sheet pile support 1 in advance, and the pressing rod 6 is positioned at a predetermined position or a predetermined height of the bulging material 3.
Is brought into contact with the sheet pile support inner surface 1c, and the pressing rod 6 is turned to press and fix the bulging material 3 to the sheet pile support 1.

FIG. 3A is a side sectional view showing a second embodiment of the support structure according to the first aspect of the present invention in the case where attachment and detachment of an abdominal material is facilitated, and FIG. FIG. 4B is a perspective view of the detachable locking tool.

The support structure according to the second embodiment has a locking member 4a on one side of a pair of locking members 4a and 4b for locking the column 1.
Is fixed to the bulging material 3, a T-shaped bolt 8 is attached to the base end side of the other one of the locking members 4 b, and the bolt 8 is inserted into the elongated hole 9 drilled in the bulging material and rotated. It is fixed to the bulging material 3 and is slidable in the elongated hole 9.
Is pivoted to press and fix the belly material 3 to the column 1.

In this manner, by making the locking member 4b a slidable structure, the belly-raising member 3 can be easily attached and detached, and it is not necessary to insert the belly-raising member into the sheet pile support 1 or the like in advance. It is sufficient that the locking members 4a, 4b are engaged with the sheet pile support at an appropriate position or at an appropriate height. Further, since the position of the other one side of the locking tool 4b can be appropriately adjusted in the width direction of the support by the elongated hole 9, it is possible to cope with the support having various widths.

It is to be noted that, without inserting the locking tool through the support,
As another structure for facilitating attachment / detachment of the belly-raising material 3 and attaching it at an appropriate position or at an appropriate height, the base end of the movable locking tool may be rotatable by, for example, a hinge structure or the like.

FIGS. 4 and 5 are a bottom view and a sectional view taken along line BB of FIG. 4, respectively, showing a third embodiment in which, for example, a channel-shaped material column is used as the column in the column structure of the first invention. FIG.

The support structure according to the third embodiment uses a channel member 11 as a support, and a saddle frame 14 surrounding the support 11 is provided on the side surface of a bulging material 13 having a rectangular cross section which is held horizontally.
Attach. The configuration of the pressing rod 6 attached to the bottom of the belly material 13 is the same as that of the first embodiment.

In this way, when fixing the belly-raising material 13 to the groove-shaped material column 11, the pressing rod 6 is loosened,
The saddle frame 14 is inserted through the channel support 11 in advance, and the pressing rod 6 is brought into contact with the inner surface 11 c of the channel support at a predetermined position or at a predetermined height of the belly material 13.
Is rotated to press and fix the belly material 13 to the groove-shaped material support 1.

FIGS. 6 and 7 are a bottom view showing a fourth embodiment in which, for example, a sheet pile support is used as a support in the support structure of the second invention, and a cross-sectional view taken along the line CC of FIG. It is.

The support structure according to the fourth embodiment uses a sheet pile 21 as a support, and is formed so as to horizontally hold the erection member 23, for example, an erection support member 22 having a groove-shaped cross section.
Is used, for example, L
Attachment members 24a and 24b are attached, and furthermore, a pressing rod 6 having an eccentric curved surface 7 formed at the tip in the direction of a support 21 via a support base 5 is rotatably attached to the bottom surface of the support member 22 with the belly raised. . The configuration and operation of the pressing rod 6 are the same as those of the pressing rod 6 shown in the first embodiment.

In this way, when fixing the belly material 23 to the groove-shaped material column 21, the pressing rod 6 is loosened,
The locking members 24a, 24b are connected to the ends 21a, 2 of the sheet pile support 21.
1b, the support member 22 is inserted into the sheet pile support 21 in advance, and when the support member 22 reaches a predetermined position or a predetermined height, the pressing rod 6 is brought into contact with the sheet pile support inner surface 21c. The support rod 22 is pressed and fixed to the sheet pile support 21 by rotating the pressing rod 6 to protrude. After a while, 23
Is inserted into the support member 22.

FIG. 8 (a) is a side sectional view showing a fifth embodiment of the support structure according to the second aspect of the present invention, in which attachment and detachment of the support member is facilitated. It is a perspective view (b).

The support structure according to the fifth embodiment has a structure in which the locking tool 24 on one side of the pair of locking tools 24a and 24b for locking the support is used.
a is fixed to the support member 22 by raising the belly, and the shaft hole provided at the base end of the other locking tool 24b is overlapped with the elongated hole 25 drilled in the support member 22 by raising the flange. Is inserted into the support member 24b to protrude the support member 22 and slidably set on the support member 22.
It is a pillar structure that is pressed and fixed to the support.

With this configuration, it is not necessary to insert the support member 22 in advance into the sheet pile support 21 or the like in advance, and the support material can be easily attached and detached. Alternatively, at the appropriate height, the fastener 24
a, 24b can be engaged with the sheet pile support 21.
Furthermore, since the position of the other one side of the locking tool 24b can be appropriately adjusted in the width direction of the support by the length of the elongated hole 25, it is possible to cope with supports of various widths.

FIG. 9 is a perspective view showing a sixth embodiment of the support structure according to the second aspect of the present invention in which the support member is further simplified and lightened.

The support structure of the sixth embodiment is similar to that of the fourth embodiment.
Support structure 2 having a groove-shaped cross-section
2 is a column structure in which a support member 22a having an L-shaped cross section holds the belly member 23 horizontally and the column is locked by four locking members 24a to 24d.

With this configuration, the support member 22 can be further simplified and reduced in weight.

FIGS. 10 and 11 are bottom views showing Embodiment 7 in the case where, for example, a channel-shaped material column is used as a column in the column structure of the second invention, and FIG.
It is a fragmentary sectional view.

The support structure according to the seventh embodiment uses a groove-shaped member 31 as a support, and removes a side material on the support side of a rectangular support member 32 having a rectangular cross section for holding the support member 33 horizontally. Then, a saddle frame 34 surrounding the channel material support 31 is attached to a side surface of the belly support member 32 having the U-shaped cross section. The configuration of the pressing rod 6 attached to the bottom surface of the support member 32 is the same as that of the third embodiment.

In this manner, when fixing the support member 32 on the channel support 31, the pressing rod 6 is loosened, and the saddle frame 34 is fitted and inserted into the channel support 31 in advance. When the predetermined position or the predetermined height of the support member 32 is reached, the pressing rod 6 is brought into contact with the inner surface 31c of the channel member support,
The support rod 32 is turned upright by rotating the pressing rod 6 and the groove-shaped material column 3
Press and fix to 1. Thereafter, the belly material 33 is inserted into the support material 32.

FIG. 12 is a side sectional view showing still another embodiment 8 in the case of a support structure using the above-mentioned channel material support in the support structure of the second invention.

In the support structure of the eighth embodiment, in the support structure of the groove-shaped material support 31, the hinge 35 is attached to the upper end or the lower end of the support member 32 on the side opposite to the support, and the side surface of the support member can be opened. The support structure includes a support structure 32a, and the configuration of the saddle frame 34, the pressing rod 6, and the like is the same as the support structure of the fourth embodiment. Reference numeral 36 denotes a locking pin.

In the eighth embodiment, the belly support member 32 is attached to a predetermined position or a predetermined height of the column 31 in advance, and the side member on the side opposite to the column is opened to attach and detach the belly member 33. By making the side surface of the support member openable in this manner, the belly-raising member 33 can be attached and detached from the excavation groove surface side, and the attachment and detachment of the belly-raising member 33 becomes extremely easy.

In the embodiments described above, only one type of sheet pile and channel material has been described for each embodiment as applicable columns. However, the columns may be appropriately combined depending on the scale of the excavation groove, the type of the column to be used, and the local situation. Can also be used.

Also, if the eccentric curved surface of the pressing rod tip is formed as a smooth surface, the resistance force when pressing or releasing the pressing may be small, but by forming this eccentric curved surface in a sawtooth shape, The contact resistance between the support and the support is also increased, and the support can be firmly held.

[0060]

As described above, according to the present invention, the erection material or the erection support material of the supporter can be freely attached to and detached from the support by the locking tool or the saddle frame and the pressing rod, respectively, and the position can be freely adjusted. Therefore, even if it is necessary to install the flared material and the cutting beam at a stage before the hole is dug down to the predetermined flared material position in the trench excavation process, the flared material can be adjusted in a timely manner. Alternatively, the support member can be moved to a desired position and fixed, and the earth retaining operation can be performed.

Further, in the detachable belly-raising material or the belly-raising support material, it is not necessary to insert the belly-raising support material or the belly-raising material in advance through a column or the like by using a structure in which one of the locking members is movable. Since the position of the movable locking member can be appropriately adjusted in the width direction of the column by the length of the elongated hole, it can be used for columns of various widths.

In addition, since the tip of the pressing rod used here is formed as an eccentric curved surface with a large steal on the side that first comes into contact with the column, a large force is required when pressing or releasing the column. It can be attached and detached smoothly without difficulty.

Further, according to the present invention, the bulging support member for supporting the bulging material is formed so as to be horizontally held by a groove member, an L-shaped member, or the like, so that the structure is extremely simple and lightweight. Handling of the belly support material is also facilitated.

Further, according to the present invention, a hinge can be attached to the side member on the side opposite to the support of the belly supporting member so that the side member can be opened.
The attachment and detachment of the belly-raising material becomes extremely easy.

[Brief description of the drawings]

FIG. 1 shows a support structure according to a first embodiment of the present invention, and is a first embodiment.
FIG.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 shows another support structure of the first invention, a sectional side view showing Embodiment 2 (a), a perspective view showing the structure of a locking device (b), and a removable locking device. It is a perspective view of (c).

FIG. 4 is a bottom view showing another support structure according to the first embodiment and showing a second embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 shows a support structure of the second invention, and is a third embodiment.
FIG.

FIG. 7 is a sectional view taken along the line CC of FIG. 6;

8A and 8B are a sectional side view showing a fifth embodiment of the second invention, showing a fifth embodiment, and a perspective view showing the structure of a locking member, respectively.

FIG. 9 is a perspective view showing another support structure of the second invention, showing a sixth embodiment.

FIG. 10 is a bottom view showing another support structure according to the second invention and showing a seventh embodiment.

11 is a sectional view taken along the line DD in FIG. 10;

FIG. 12 is a side sectional view showing another support structure according to the second embodiment and showing an eighth embodiment.

FIG. 13 is a perspective view showing an example of a conventional trench excavation method.

FIG. 14 is a perspective view showing a structural example of a sheet pile support.

FIG. 15 is a perspective view showing a structural example of a channel support.

[Explanation of symbols]

 1,21 sheet pile support 11,31 channel material support 1a, 1b, 21a, 21b end of sheet pile support 1c, 21c sheet pile inner surface 11c, 31c groove material inner surface 22,22a, 32 belly support material 3,13,23,33 Belly raising material 14, 34 Saddle frame 4a, 4b, 24a, 24b Locking tool 5 Support base 6 Pressing rod 6a Handle 7 Eccentric curved surface 8 T-shaped bolt 9, 25 Long hole 26 Flanged shaft 35 Hinge 36 Locking pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-179648 (JP, A) Japanese Utility Model Showa 56-25743 (JP, U) Japanese Utility Model Showa 61-23342 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) E02D 17/08

Claims (7)

(57) [Claims] 1. A strut is provided opposite to each other at regular intervals along the inner wall of a digging groove, and the opposing interval is kept constant by a cutting beam, and the sheet piles arranged on the inner wall of the groove are supported horizontally. In a column structure of a sheet pile type supporting structure for preventing collapse of an excavation groove by attaching a bulging material to be erected, a locking member for locking a stanchion is attached to a side surface of the bulging material, and a support is provided on a bottom surface of the bulging material. A pressing rod having an eccentric curved surface formed at the tip end is rotatably mounted via a table, the locking tool is locked to the end of the column, and the pressing rod is brought into contact with the inner surface of the column, and the pressing rod is turned. A strut structure for a sheet pile type shoring for an excavation trench, wherein the strut is moved to fix the strut against the strut. 2. A pair of locking members for locking a support pillar, one side of which is fixed to a belly material, and the base end of the other locking member is movably installed on the belly material, and a pressing rod is provided. The pillar structure of a sheet pile type support for excavation trenches according to claim 1, wherein the belly material is pressed and fixed to the pillar by rotating the pillar. 3. A saddle frame surrounding the column is attached in place of the locking member attached to the side surface of the belly-raising material, the saddle frame is inserted into the column, and the pressing rod is brought into contact with the inner surface of the column.
2. The strut structure of a sheet pile type shoring for excavation trenches according to claim 1, wherein the push rod is rotated to fix the belly material to the strut. 4. A strut is provided at regular intervals along the inner wall of the excavation groove, and the opposing interval is kept constant by a cutting beam, and the sheet piles arranged on the inner wall of the groove are horizontally supported. In a support structure of a sheet pile type supporting structure for preventing a collapse of an excavation groove by attaching a bulging material to be erected, a member for locking a fulcrum to a side surface of a flaring support material formed so as to horizontally hold the flaring material. A stopper is attached, and furthermore, a pressing rod having an eccentric curved surface formed at the tip end is rotatably attached to the bottom surface of the support member via a support base, and the stopper is locked to the end of the column. Make the pressing rod abut the inner surface of the support,
The support structure of a sheet pile type support for excavation grooves, wherein the support rod is pressed and fixed to the support column by rotating the press rod to protrude. 5. A pair of locking members for locking the support pillar, one side of which is raised and fixed to the support member, and the base end of the other one of the locking members is mounted on the support member such that the base end of the pair of locking members is movable. 5. The strut structure according to claim 4, wherein the push rod is rotated to protrude and the support member is pressed and fixed to the strut. 6. A saddle frame surrounding the column is attached in place of the locking member attached to the side surface of the belly support member, the saddle frame is inserted into the column, and the pressing rod is brought into contact with the inner surface of the column to rotate the pressing rod. 5. The strut structure of a sheet pile type shoring for excavation trenches according to claim 4, wherein the bulging support material is pressed and fixed to the strut by moving. 7. The support member is provided with a hinge attached to an upper end or a lower end of the side member on the side opposite to the support column so that a side portion of the support member can be opened, and the member can be attached from the side portion.
The strut structure of the sheet pile type shoring for the excavation trench described in the above.