JP7174548B2 - Mountain retaining structure, axial force transmission device, and installation method for mountain retaining structure - Google Patents

Description

The present invention provides an earth retaining structure including an earth retaining wall and a wale, which is employed to prevent the surrounding ground from collapsing during underground excavation, an axial force transmission device for transmitting an axial force acting on the wale, and an earth retainer. It relates to a method of installing a structure.

When excavating underground to construct a structure or the like underground, an earth retaining structure is employed to prevent the surrounding ground from collapsing. The mountain retaining structure includes a mountain retaining wall and a wale. An axial force acts on the wale along with bending. In particular, in a mountain retaining structure having a corner portion, a side pressure acting through the mountain retaining wall acts on the wale on one side bordering on the corner portion, and the lateral pressure acts on the other side via the corner portion. Since it is also transmitted to the wale on the side, the axial force acting on the wale on the other side increases.

Due to the action of this axial force, it is necessary to consider buckling, and the cross-sectional area of the wale is increased. be. In addition, when struts that suppress wale are used, countermeasures such as increasing the number of locations where struts suppress wale are taken.

Japanese Patent Application Laid-Open No. 2002-100000 discloses a method relating to the axial force in the longitudinal direction of the wale that is transmitted from the striking of the corner portion. In Patent Document 1, a compression connecting material is separately provided on the inner surface of the wale between the striking and striking between both corners, and both ends of the compression connecting material and the striking receiving piece are butted and bolted, The longitudinal axial force of the wales transmitted from the striking of the corners is also borne by the compression joints.

Japanese Patent Publication No. 5-32534

In consideration of axial force, standardized general-purpose materials are often doubled as wales in order to secure the cross-sectional area of the wales. However, this is often over-spec. In addition, if the general-purpose materials are arranged in a double horizontal direction, the opening area in plan view will be reduced accordingly, and the space for excavation work, material loading work, frame construction work, etc. will be limited. On the other hand, if the general-purpose materials are placed in a double vertical direction, the joint surface with the struts must be increased accordingly. Furthermore, if the wale is doubled, the bracket will also be larger, so the amount of over-digging will be increased accordingly.

In consideration of the axial force, it is often done to increase the number of places where the wale is suppressed by struts. However, this increases the number of struts, which in turn reduces the opening area in plan view, limiting the space for excavation work, material loading work, frame construction work, and the like.
Providing a separate compression joint material on the inner surface of the wale as in Patent Document 1 also increases the opening area in plan view by the amount of the compression joint material, similar to arranging the wale horizontally double. Since it will be less, the working space will be restricted.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mountain retaining structure and an axial force transmission device that suppress an increase in the cross-sectional area of the wale due to an axial force acting on the wale while suppressing a decrease in the opening area in plan view. To provide and to provide a method for installing an earth retaining structure.

The invention according to claim 1 is a mountain retaining structure comprising a mountain retaining wall and a wale, wherein the axial force acting on the wale that cannot be tolerated by its cross-sectional area is absorbed by the mountain retaining wall. The axial force transmission device includes an axial force transmission member provided on the wale and an axial force receiving member provided on the mountain retaining wall, The axial force transmission member transmits the axial force from the wale to the axial force receiving member, the axial force receiving member receives the axial force transmitted from the axial force transmission member, and An earth retaining structure characterized by transmitting force to the earth retaining wall.
The invention according to claim 2 is the mountain retaining structure according to claim 1, wherein the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed.
According to a third aspect of the present invention, there is provided a mountain retaining structure including a mountain retaining wall and a wale, and an axial force transmission device for transmitting at least part of an axial force acting on the wale to the mountain retaining wall. wherein the axial force transmission device includes an axial force transmission member provided on the wale and an axial force receiving member provided on the mountain retaining wall, the axial force transmission member comprising: At least part of the axial force acting on the wale is transmitted from the wale to the axial force receiving member, and the axial force receiving member receives the axial force transmitted from the axial force transmission member, The mountain retaining structure is characterized in that the received axial force is transmitted to the mountain retaining wall, and the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed.
The invention according to claim 4 is characterized in that the axial force transmission member is detachable from the wale and can be provided by adjusting its position in the longitudinal direction of the wale. The mountain retaining structure according to any one of claims 1 to 3.
In the invention according to claim 5, the axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member body connected to the mounting member and abutting on the axial force receiving member. The attachment member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale. It is an earth retaining structure according to any one of the above.
The invention according to claim 6 is the mountain retaining structure according to any one of claims 1 to 5, wherein the axial force transmission device is provided on the upper side of the wale. .
The invention according to claim 7 is the mountain retaining structure according to claim 6, wherein the axial force receiving member is provided above the wale with a space therebetween.
The invention according to claim 8 is the mountain retaining structure according to any one of claims 1 to 7, wherein the axial force transmission device is provided on the lower side of the wale. be.
The invention according to claim 9 is the mountain retaining structure according to claim 8, wherein the axial force receiving member provided on the lower side can receive the wale.
According to a tenth aspect of the invention, there is provided an axial force transmission device for transmitting to a mountain retaining wall an axial force acting on a wale of a mountain retaining structure, the axial force being unacceptable due to its cross-sectional area. and an axial force receiving member provided on the retaining wall, wherein the axial force transmitting member transmits the axial force from the wale to the axial force receiving member, The axial force receiving member is an axial force transmission device characterized in that it receives the axial force transmitted from the axial force transmission member and transmits the received axial force to the mountain retainer wall.
The invention according to claim 11 is the axial force transmission device according to claim 10, wherein the axial force transmission member and the axial force receiving member are in contact with each other and are not fixed.
The invention according to claim 12 is an axial force transmission device for transmitting at least part of the axial force acting on the wale of the mountain retaining structure to the mountain retaining wall, wherein the axial force transmission member provided on the wale is provided. and an axial force receiving member provided on the retaining wall, wherein the axial force transmitting member transmits at least part of the axial force acting on the wale from the wale to the axial force receiving member. The axial force receiving member receives the axial force transmitted from the axial force transmitting member and transmits the received axial force to the retaining wall. The axial force transmission device is characterized by being in contact and not fixed.
(13) The axial force transmission member is detachable from the wale and can be provided by adjusting its position in the longitudinal direction of the wale. 13. The axial force transmission device according to any one of 12.
In the invention according to claim 14, the axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member body connected to the mounting member and abutting on the axial force receiving member. 10 to 13, wherein the mounting member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale. The axial force transmission device according to any one of .
The invention according to claim 15 is characterized in that the axial force receiving member is provided on the lower side of the wale so that the wale can be placed thereon. 15. The axial force transmission device according to any one of 14.
The invention according to claim 16 is a method for installing a mountain retaining structure including a mountain retaining wall and a wale, comprising a step of providing an axial force transmission member on the wale, and a step of providing an axial force receiving member on the mountain retaining wall. and a step of bringing the axial force transmitting member and the axial force receiving member into contact with each other, wherein the axial force acting on the wale and not allowable in its cross-sectional area is applied to the wale. This is a method for installing an earth retaining structure, characterized in that the force is transmitted from the earth retaining structure to the earth retaining wall.
According to a seventeenth aspect of the invention, there is provided a method for installing a mountain retaining structure including a mountain retaining wall and a wale, comprising a step of providing an axial force transmission member on the wale, and a step of providing an axial force receiving member on the mountain retaining wall. and a step of bringing the axial force transmitting member and the axial force receiving member into contact with each other to transmit at least part of the axial force acting on the wale from the wale to the mountain retaining wall. and the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed to each other.
Further, as another invention, the following may be used.
Means 1 is a mountain retaining structure comprising a mountain retaining wall and a wale, and is provided with an axial force transmission device for transmitting at least part of the axial force acting on the wale to the mountain retaining wall. The axial force transmission device includes an axial force transmission member provided on the wale and an axial force receiving member provided on the mountain retainer wall, the axial force transmission member being attached to the wale. at least part of the axial force acting on the wale is transmitted from the wale to the axial force receiving member, and the axial force receiving member receives the axial force transmitted from the axial force transmitting member, and receives the received axial force is transmitted to the mountain retaining wall.

Means 2 is the mountain retaining structure according to Means 1, wherein the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed.

Means 1 or Means 2 is characterized in that the axial force transmission member is detachable from the wale and can be provided by adjusting the position in the longitudinal direction of the wale . 3. It is an earth retaining structure described in .

In means 4 , the axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member main body connected to the mounting member and abutting on the axial force receiving member, Any one of means 1 to 3, wherein the mounting member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale. 3. It is an earth retaining structure described in .

Means 5 is the mountain retaining structure according to any one of Means 1 to 4, wherein the axial force transmission device is provided on the upper side of the wale.

Means 6 is the mountain retaining structure according to Means 5, wherein the axial force receiving member is provided above the wale with a space therebetween.

Means 7 is the mountain retaining structure according to any one of Means 1 to 6, wherein the axial force transmission device is provided below the wale.

Means 8 is the mountain retaining structure according to Means 7, wherein the axial force receiving member provided on the lower side can place the wale.

Means 9 is an axial force transmission device for transmitting at least part of the axial force acting on the wale of the mountain retaining structure to the mountain retaining wall, and comprises an axial force transmission member provided on the wale and the mountain retaining wall. and an axial force receiving member provided in the axial force transmitting member, the axial force transmitting member transmitting at least part of the axial force acting on the wale from the wale to the axial force receiving member, and The force receiving member is an axial force transmission device characterized in that it receives the axial force transmitted from the axial force transmission member and transmits the received axial force to the mountain retainer wall.

Means 10 is the axial force transmission device according to Means 9, wherein the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed.

Means 9 or 10 is characterized in that the axial force transmission member is detachable from the wale and can be provided by adjusting the position in the longitudinal direction of the wale . 3. The axial force transmission device according to .

means 12 , wherein the axial force transmission member comprises a mounting member connected to the wale, and an axial force transmission member main body connected to the mounting member and abutting on the axial force receiving member, Any one of means 9 to 11, wherein the mounting member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale. 3. The axial force transmission device according to .

Means 13 is any one of Means 9 to 12, wherein the axial force receiving member is provided on the lower side of the wale so that the wale can be placed thereon. 1. The axial force transmission device according to 1.

Means 14 is a method for installing a mountain retaining structure comprising a mountain retaining wall and a wale, comprising a step of providing an axial force transmitting member on the wale, a step of providing an axial force receiving member on the mountain retaining wall, and a step of providing an axial force receiving member on the mountain retaining wall. bringing the axial force transmitting member and the axial force receiving member into contact with each other, wherein at least part of the axial force acting on the wale is transmitted from the wale to the retaining wall. It is an installation method of the mountain retaining structure.

To provide a mountain retaining structure that suppresses an increase in the cross-sectional area of the waling due to an axial force acting on the waling while suppressing a decrease in the opening area in a plan view by the configuration according to any one of claims 1 to 8. can be done. The configuration according to claims 9 to 13 provides an axial force transmission device that suppresses an increase in cross-sectional area of the wale due to an axial force acting on the walrus while suppressing a decrease in the opening area in plan view. be able to. With the configuration according to claim 14, there is provided a method for installing a mountain retaining structure that suppresses an increase in cross-sectional area of the wale due to an axial force acting on the wale while suppressing a decrease in the opening area in plan view. be able to.

In addition, since the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed, the wale is not restrained by the retaining wall in the direction opposite to the direction of the axial force to be received. Therefore, even if an unexpected force such as a force in the opposite direction to the received axial force or bending acts on the wale, it is stable as before.

In addition, the axial force transmission member is detachable from the wales and can be provided by adjusting the position in the longitudinal direction of the wales. The axial force transmission member can be easily attached to transmit the axial force to the axial force receiving member.

In addition, the axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member body connected to the mounting member and abutting on the axial force receiving member. The mounting member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale. The axial force transmission member, particularly the axial force transmission member main body, can be easily attached to transmit force.

In addition, since the axial force transmission device is provided on the upper side of the wale, the axial force transmission device can be easily installed.

In addition, the axial force transmission device is provided on the upper side of the wale, and the axial force receiving member is provided above the wale with a space therebetween. A backfilling member may be provided that is provided between.

In addition, since the axial force transmission device is provided on the lower side of the wale, it is possible to easily install the back-filling member provided between the wale and the retaining wall. In addition, axial force transmission devices can be provided on both the upper side and the lower side of the wale, so that a greater axial force can be handled.

In addition, since the axial force receiving member provided on the lower side can also be used as a bracket member because it is possible to place the wale, it is possible to omit the separately provided bracket member. can.

1 is a plan view of a mountain retaining structure according to a first embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of an axial force transmission device provided in a mountain retaining structure according to a first embodiment of the present invention, where (A) is a plan view and (B) is a cross-sectional view taken along line XX of (A); BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the axial-force transmission apparatus provided in the mountain stop structure of the 1st Embodiment of this invention, (A) is YY sectional drawing of FIG. 2(A), (B) is FIG. 2(A) is a ZZ cross-sectional view of FIG. It is explanatory drawing which shows having provided the back-filling member in FIG. 3(A). FIG. 10A is a plan view of an axial force transmission device provided in a mountain retaining structure according to a second embodiment of the present invention, and FIG. FIG. 10A is a plan view of an axial force transmission device provided in a mountain retaining structure according to a third embodiment of the present invention, and FIG. 6(A) is a YY sectional view of FIG. 6(A), and (B) is a rear view of FIG. 6(A). It is explanatory drawing which shows having provided the insertion member. It is explanatory drawing of the axial force transmission device provided in the mountain-clamp structure of the 4th Embodiment of this invention, (A) is a top view, (B) is XX sectional drawing of (A). FIG. 8B is a cross-sectional view taken along the line YY of FIG. 8A;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, it cannot be overemphasized that this invention is not limited to embodiment.

[First embodiment]
A first embodiment according to the present invention will be described below with reference to FIGS. 1 to 4 of the drawings.
FIG. 1 is a plan view showing a first embodiment of the mountain retaining structure according to the present invention. FIG. 1 shows a portion including the corner portion of the mountain retaining structure 1 .

A mountain retaining structure 1 includes a mountain retaining wall 2. - 特許庁The earth retaining wall 2 is a so-called soil cement underground wall having a core material 3 and soil cement 4 . In addition, the mountain retaining structure 1 includes a wale 5, a strut 6, and a flint 7. - 特許庁

Side pressure such as earth and water pressure from a non-excavated portion acts on the mountain retaining wall 2 of the earth retaining structure 1, and the wale 5 also supports it. At the corner, the lateral pressure acting on the wale 5 on one side (for example, the side set in the vertical direction of the paper surface of FIG. 1) is applied to the corner through the strike 7 provided at the corner. It acts as an axial force on the wale 5 on the other side (for example, the side set in the horizontal direction of the paper surface of FIG. 1). In FIG. 1, the axial force F acting on the wale 5 is indicated by an arrow.

In order to cope with the axial force F acting on the wale 5, the mountain retaining structure 1 is provided with an axial force transmission device 10. As shown in FIG. The axial force transmission device 10 transmits the axial force acting on the wale to the mountain retaining wall 2. In this embodiment, as shown in FIG. Two locations are provided on the waling 5 in the direction. The axial force transmission device 10 is provided between the flint 7 provided at the corner and the nearest strut 6. - 特許庁This is because the buckling at this portion is taken into consideration.

FIG. 2(A) is a plan view showing one of the axial force transmission devices 10 installed on the wale 5 in the lateral direction of the paper surface of FIG. As shown in FIG. 2A, the axial force F acting on the wale 5 acts from the right side to the left side of the paper surface. FIG. 2(B) is a cross-sectional view taken along line XX of FIG. 2(A). FIG. 3(A) is a cross-sectional view taken along the line YY of FIG. 2(A). FIG. 3B is a ZZ cross-sectional view of FIG. 2A.

In the figures other than FIG. 1, the illustration of the soil cement of the retaining wall is omitted. The wales 5 are placed on brackets 8 attached to the core member 3 . A back-filling material 9 is provided between the core material 3 and the waling 5 for transmitting the force acting from the retaining wall to the waling 5 even if there is a gap between them. The back-filling material 9 has a rectangular shape and is provided with a hook portion 9a as shown in FIG. 3(B). It is possible to do so. In FIGS. 2 and 3, the back-filling material 9 (the second one from the left side of the paper surface in FIG. 2A) between the core material 3 on which the axial force receiving member 12 of the axial force transmission device 10 is provided and the wale 5 is , are omitted from the drawing.

The axial force transmission device 10 transmits the axial force F acting on the wales 5 from the right side to the left side in the plane of the drawing to the core member 3 (mounting wall). The axial force transmission device 10 is provided above the wale 5 and includes an axial force transmission member 11 and an axial force receiving member 12 . The axial force transmission member 11 is provided on the wale 5 and includes an axial force transmission member main body 11a and a mounting member 11b. The axial force receiving member 12 is provided on the core member 3 (mounting wall) and includes a first axial force receiving member 12a and a second axial force receiving member 12b.

As shown in FIGS. 2A, 2B and 3A, the axial force transmission member main body 11a is made of an angle material having an L-shaped cross section. ) is only in contact with the axial force receiving member 12 provided on the core member 3 and is not fixed by welding or the like. The axial force transmission member main body 11a is in contact with both the first axial force receiving member 12a and the second axial force receiving member 12b. The axial force transmission member main body 11a is connected to the mounting member 11b by bolts B at three points on the lower side of the angle member.

As shown in FIGS. 2(A), 2(B) and 3(A), the mounting member 11b is composed of a channel material having a C-shaped cross section, and the upper piece is the angle material of the axial force transmission member main body 11a. It is connected to the lower side by bolts B at three points. Also, the lower portion of the standing piece connecting the upper piece and the lower side of the channel material of the mounting member 11b is connected to the flange of the wale 5 on the core material 3 side by bolts B at three points.

The first axial force receiving member 12a and the second axial force receiving member 12b, as shown in FIGS. The end of the axial force transmission member main body 11a is in contact with the hanging piece on the right side of the paper surface in FIG. 2(B). The ends of the first axial force receiving member 12a and the second axial force receiving member 12b on the side of the core member 3 are attached to the flanges of the core member 3 on the side of the wale 5 by welding. The first axial force receiving member 12a is provided above the second axial force receiving member 12b.

As shown in FIG. 4, the second axial force receiving member 12b of the axial force receiving member 12 is provided above the wale 5 with a space S therebetween. Therefore, a space for engaging the hook portion 9a of the back-filling material 9 with the flange of the wale 5 is secured, and the work for installing the back-filling material 9 is facilitated.

An example of the installation method of the axial force transmission device 10 will be described in order.
The attachment member 11b is attached to the wale 5. As shown in FIG. For mounting, bolts B are used to connect the flange of the wale 5 on the side of the core member 3 and the standing piece of the mounting member 11b. The bolt hole for connecting the bolt B may be provided as a gas hole at an appropriate position after matching on site, or may be provided in advance.
The axial force transmission member main body 11a is attached to the attachment member 11b provided on the wale 5. As shown in FIG. For attachment, bolts B are used to connect the upper piece of the attachment member 11b and the lower side of the axial force transmission member main body 11a. The bolt hole for connecting the bolt B may be provided as a gas hole at an appropriate position after matching on site, or may be provided in advance.

A second axial force receiving member 12 b is attached to the core member 3 . For attachment, the flange on the side of the wale 5 of the core member 3 and the end portion of the second axial force receiving member 12b on the side of the core member 3 are fixed by welding. During this fixation, the hanging piece on the right side of the paper surface of FIG. 2B of the second axial force receiving member 12b and the end portion of the axial force transmission member main body 11a on the left side of the paper surface of FIG. do. For example, the second axial force receiving member 12b and the axial force transmission member main body 11a are temporarily fixed with a clamp, and then the second axial force receiving member 12b is welded to the core member 3 .
A first axial force receiving member 12 a is attached to the core member 3 . The first axial force receiving member 12a is also attached in the same manner as the second axial force receiving member 12b.

The effects of the mountain retaining structure 1 of this embodiment will be described.
When an axial force F acts on the wale 5 from right to left as shown in FIG. The force receiving member 12a and the second axial force receiving member 12b are pressed. Since the first axial force receiving member 12a and the second axial force receiving member 12b are fixed to the core member 3, the core member 3 is attached to the shaft through the first axial force receiving member 12a and the second axial force receiving member 12b. will receive power. In this way, the axial force F acting on the wale 5 is transmitted to the retaining wall.

In this way, by causing the axial force acting on the wale to be borne by the mountain retaining wall, it is possible to suppress an increase in the cross-sectional area of the wale due to the axial force acting on the wale. Therefore, it is also possible to suppress a decrease in the opening area in plan view.
Further, the axial force transmission member main body 11a is only in contact with the first axial force receiving member 12a and the second axial force receiving member 12b and is not fixed. By doing so, the wales 5 are not restrained by the retaining walls in the direction opposite to the direction of the acting axial force. Even if it acts on wale, it can be stabilized in the same way as before.

Since the axial force transmission device 10 is provided on the upper side of the wale 5, it is possible to perform the work on the upper side of the wale 5 even when the axial force transmission member 11 and the axial force receiving member 12 are attached. Easy to do. In addition, since the axial force transmission device 10 is provided above the wale 5, after the wale 5 is installed, the axial force acting on the wall is quickly borne by the retaining wall. excavation (excavation step up to the next wale) can be performed quickly, so the process can be shortened.

Since the axial force receiving member 12 is made up of two members, the first axial force receiving member 12a and the second axial force receiving member 12b, even if one does not come into contact with the axial force transmission member main body 11a at the time of attachment, the other will not come into contact. By contacting, it is possible to cope with construction errors due to welding etc.
Furthermore, since the axial force transmission member 11 can be easily removed by removing the bolt B, the axial force transmission member 11 can be reused in the axial force transmission device of another mountain retaining structure.

[Second embodiment]
A second embodiment according to the present invention will be described below with reference to FIG. 5 of the drawings. The description of the same parts as in the first embodiment will be omitted, and mainly the different parts will be described.
In this embodiment, as in the first embodiment, the axial force transmission device 10 is provided on the upper side of the wale 5, but the bolt hole through which the bolt B of the axial force transmission member 11 is passed is the first bolt hole. It differs from the embodiment.

In the standardized general-purpose wale 5, as shown in FIGS. 5A and 5B, bolt holes 5a are provided in the flange in advance at predetermined intervals along the longitudinal direction of the wale. It is In this embodiment, bolt holes 11b1 are provided in the upright piece of the mounting member 11b along the longitudinal direction of the wale 5 at half the intervals of the bolt holes 5a of the wale 5. As shown in FIG. Then, the bolt B is passed through the bolt hole 5a of the wale 5 and the bolt hole 11b1 of the standing piece of the mounting member 11b and fastened. With such a configuration, the axial force transmission member 11 can be detachably attached to the wale 5 . In addition, since it is possible to adjust the position of the wales 5 in the longitudinal direction and provide them, the mounting work is facilitated. In particular, in a case where the axial force transmitting member 11 is attached after the axial force receiving member 12 is first attached to the retaining wall, the work becomes easier.

As shown in FIGS. 5A and 5B, six bolt holes 11a1 are also provided along the longitudinal direction of the wale 5 in the lower piece of the axial force transmission member body 11a. Five bolt holes 11b2 are provided in the upper piece of the mounting member 11b along the longitudinal direction of the wale 5 at the same intervals. Then, a bolt B is passed through the bolt hole 11a1 in the lower piece of the axial force transmission member main body 11a and the bolt hole 11b2 in the upper piece of the mounting member 11b and fastened. With this configuration, the axial force transmission member main body 11a can be detachably attached to the mounting member 11b. In addition, the axial force transmission member main body 11a can be connected by adjusting the position in the longitudinal direction of the wale so that the axial force transmission member main body 11a abuts on the axial force receiving member 12, which facilitates the installation of the axial force transmission member main body. becomes.

In the present embodiment, the bolt holes 11a1, 11b1, and 11b2 are round holes, but they are not limited to this, and may be elongated holes extending in the longitudinal direction of the wale 5. FIG. Furthermore, alignment can be easily performed.

[Third embodiment]
A third embodiment according to the present invention will be described below with reference to FIGS. 6 and 7 of the drawings. The description of the same parts as those of the first embodiment and the second embodiment will be omitted, and mainly the different parts will be described.
This embodiment is different from the first and second embodiments in that the axial force transmission device 10 is provided below the wale 5 .

By providing the axial force transmission device 10 on the lower side of the wale 5 as in the third embodiment, when the axial force transmission device 10 is not provided on the upper side of the wale 5 or when the upper side and the lower side By providing an axial force transmission device on both sides, it is possible to cope with a larger axial force.
Further, unlike the first embodiment and the second embodiment, since the axial force receiving member is not installed above the wale 5, as shown in FIG. It can be easily installed from above the shim 5.

[Fourth Embodiment]
A fourth embodiment according to the present invention will be described below with reference to FIGS. 8 and 9 of the drawings. The description of the same parts as those of the first to third embodiments will be omitted, and mainly the different parts will be described.
In the fourth embodiment, which is a further modification of the second embodiment, a wale is placed and supported on the axial force receiving member. That is, the axial force receiving member is also used as the bracket member.

As shown in FIGS. 8(A), 8(B) and 9, the wale 5 is mounted on the axial force receiving member 13, and the axial force receiving member 13 supports the walling 5. It is designed to Since the wale 5 is supported and the axial force is also received, unlike the previous embodiments, the axial force receiving member 13 is a stronger H-shaped cross section member. An end portion of the axial force transmission member body 11 a of the axial force transmission member 11 is in contact with the flange of the axial force receiving member 13 .

Since this axial force receiving member 13 also functions as a bracket, it is attached to the core member 3 before the wale 5 is installed. In this case, the axial force transmitting member 11 is attached after the axial force receiving member 13 is fixed first. If the position can be adjusted and connected, the workability will be greatly improved.

[Other Modifications]
The present invention is not limited to the above embodiments. Examples include:

In this embodiment, the earth retaining wall of the earth retaining structure is a soil cement underground wall, but it is not limited to this, and may be a master pile horizontal sheet pile, a steel sheet pile, or a concrete earth retaining wall. In the case of main pile horizontal sheet piles, the axial force receiving members are attached to the main piles. to respond.

In the first embodiment of the present embodiment, two axial force transmission devices 10 are provided at the corner portions of the wale 5, but the present invention is not limited to this. The installation location may be changed according to the axial force to be borne. Further, if necessary, if the axial force is insufficient even if the wale is doubled as in the prior art, an axial force transmission device may be provided according to the insufficient amount.

In the present embodiment, the axial force transmission device 10 is provided between the flint 7 provided at the corner and the nearest strut 6, but is not limited to this. It may be provided according to the location where the axial force acts on the wale. Moreover, it is not limited to the one corresponding to the axial force transmitted from the striking of the corner, and is not limited to the presence or absence of striking as long as the axial force acts.

In the present embodiment, the axial force transmission member 11 of the axial force transmission device 10 is composed of two members, the axial force transmission member main body 11a and the mounting member 11b.
In this embodiment, the axial force receiving member 12 of the axial force transmission device 10 is composed of two members, the first axial force receiving member 12a and the second axial force receiving member 12b. It may be used as a member.

In this embodiment, the axial force transmission member 11 and the axial force receiving member 12 are in contact with each other and are not fixed, but they may be fixed. In this case, even if an unexpected force such as a force in the opposite direction to the axial force acting on the wales or bending acts on the wales, the wales will be restrained by the retaining walls. After installation of the force transmission device, no gap is generated between the axial force transmission member and the axial force receiving member, and the axial force can be transmitted to the retaining wall more quickly and reliably.

In the present embodiment, the struts are used in the description, but the present invention is not limited to this, and may be used for a mountain retaining structure having a relatively small opening area that does not employ struts.

In the present embodiment, the earth retaining structure and earth retaining wall are applied to excavation for constructing an underground structure on land, that is, the so-called earth retaining structure and earth retaining wall. It may also be used for the so-called coffering construction method, which is used when the excavated portion is completely coffered to resist earth pressure and water pressure. That is, the mountain retaining of the present invention includes earth retaining and coffering.

It is good also as an example by applying each technical matter in any embodiment to other embodiments.

Reference Signs List 1 mountain retaining structure 2 mountain retaining wall 3 core material 4 soil cement 5 wale 6 strut 7 flint 8 bracket 9 backfilling material 10 axial force transmission device 11 axial force transmission member 11a axial force transmission member main body 11b mounting member 12, 13 Axial force receiving member

Claims (17)

An earth-retaining structure comprising an earth-retaining wall and a wale,
an axial force transmission device for transmitting an axial force acting on the wale that is not allowable due to its cross-sectional area to the mountain retaining wall;
The axial force transmission device includes an axial force transmission member provided on the wale and an axial force receiving member provided on the retaining wall,
The axial force transmission member transmits the axial force from the wale to the axial force receiving member,
The mountain retaining structure, wherein the axial force receiving member receives the axial force transmitted from the axial force transmitting member and transmits the received axial force to the mountain retaining wall. The mountain retaining structure according to claim 1, wherein the axial force transmitting member and the axial force receiving member are in contact with each other and are not fixed. An earth-retaining structure comprising an earth-retaining wall and a wale,
an axial force transmission device for transmitting at least part of the axial force acting on the wale to the retaining wall;
The axial force transmission device includes an axial force transmission member provided on the wale and an axial force receiving member provided on the retaining wall,
the axial force transmission member transmits at least part of the axial force acting on the wale from the wale to the axial force receiving member;
the axial force receiving member receives the axial force transmitted from the axial force transmitting member and transmits the received axial force to the mountain retaining wall;
The axial force transmitting member and the axial force receiving member are in contact and are not fixed.
An earth retaining structure characterized by: The axial force transmission member is detachable from the wale, and can be provided by adjusting its position in the longitudinal direction of the wale.
The mountain retaining structure according to any one of claims 1 to 3, characterized in that: The axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member body connected to the mounting member and abutting on the axial force receiving member,
The attachment member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale.
The mountain retaining structure according to any one of claims 1 to 4, characterized in that: The axial force transmission device is provided on the upper side of the wale.
The mountain retaining structure according to any one of claims 1 to 5, characterized in that: The axial force receiving member is provided above the wale with a space therebetween.
The mountain retaining structure according to claim 6, characterized in that: The axial force transmission device is provided below the wale.
The mountain retaining structure according to any one of claims 1 to 7, characterized in that: The axial force receiving member provided on the lower side can place the wale.
The mountain retaining structure according to claim 8, characterized in that: An axial force transmission device for transmitting to a mountain retaining wall an axial force that acts on the wale of the mountain retaining structure and is not allowable due to its cross-sectional area,
An axial force transmission member provided on the wale and an axial force receiving member provided on the retaining wall,
The axial force transmission member transmits the axial force from the wale to the axial force receiving member,
The axial force receiving member receives the axial force transmitted from the axial force transmitting member and transmits the received axial force to the mountain retaining wall.
An axial force transmission device characterized by: The axial force transmitting member and the axial force receiving member abut and are not fixed.
11. The axial force transmission device according to claim 10, characterized in that: An axial force transmission device for transmitting at least part of the axial force acting on the wale of the mountain retaining structure to the mountain retaining wall,
An axial force transmission member provided on the wale and an axial force receiving member provided on the retaining wall,
the axial force transmission member transmits at least part of the axial force acting on the wale from the wale to the axial force receiving member;
the axial force receiving member receives the axial force transmitted from the axial force transmitting member and transmits the received axial force to the mountain retaining wall;
The axial force transmitting member and the axial force receiving member abut and are not fixed.
An axial force transmission device characterized by: The axial force transmission member is detachable from the wale, and can be provided by adjusting its position in the longitudinal direction of the wale.
13. The axial force transmission device according to any one of claims 10 to 12, characterized in that: The axial force transmission member includes a mounting member connected to the wale, and an axial force transmission member body connected to the mounting member and abutting on the axial force receiving member,
The attachment member and the axial force transmission member main body are detachable and can be connected by adjusting the position in the longitudinal direction of the wale.
14. The axial force transmission device according to any one of claims 10 to 13, characterized in that: The axial force receiving member is provided on the lower side of the wale so that the wale can be placed thereon.
15. The axial force transmission device according to any one of claims 10 to 14, characterized in that: A method for installing an earth retaining structure comprising an earth retaining wall and a wale, comprising:
a step of providing an axial force transmission member on the wale;
providing an axial force receiving member on the retaining wall;
bringing the axial force transmitting member and the axial force receiving member into contact;
with
An axial force acting on the wale that cannot be allowed by its cross-sectional area is transmitted from the wale to the retaining wall.
A method for installing an earth retaining structure characterized by: A method for installing an earth retaining structure comprising an earth retaining wall and a wale, comprising:
a step of providing an axial force transmission member on the wale;
providing an axial force receiving member on the retaining wall;
bringing the axial force transmitting member and the axial force receiving member into contact;
with
transmitting at least part of the axial force acting on the wale from the wale to the retaining wall;
The axial force transmitting member and the axial force receiving member are in contact and are not fixed.
A method for installing an earth retaining structure characterized by:

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