JP5060170B2 - Upset - Google Patents

Description

  The present invention relates to an upset for pressing down a sheet pile during earth retaining for civil engineering work.

In civil engineering work, when excavating soil to form a groove, a plurality of sheet piles are provided side by side on the wall surface of the groove in order to carry out earth retaining, and an erection for pressing down these sheet piles is provided. Such erection is pressed against the sheet pile by a support member as a beam. Generally, the abdominal body is formed in a cylindrical shape for the purpose of weight reduction and the like. However, in the cylindrical uprising main body, earth and sand are likely to enter from the opening to the inner back of the upset. And the earth and sand etc. which erected and invaded the inside of the main body will cause inconveniences such as erection and acceleration of corrosion of the main body. From such a situation, an abdomen with a lid provided at the opening has been proposed (see Patent Documents 1 to 3). That is, in such an upset, a configuration is adopted in which the upset is caused and the opening of the main body is closed with a lid, thereby suppressing the invasion of earth and sand into the inside of the main body.
JP 07-305352 A Japanese Patent Laid-Open No. 10-46578 Japanese Patent Laid-Open No. 2002-21078

  When handling the erection, an impact may be applied to the lid body when the erection of the main body collides with the ground or the like. For example, when the corner portion at the end of the flank collides with the ground or the like, a large impact force is locally applied. In the conventional erection, there is a possibility that the lid body may be damaged or fall off due to repeated application of such an impact force.

  This invention is made | formed in view of such a situation, The objective is to provide the abdominal upset which can protect a cover body suitably.

  In order to achieve the above object, the invention described in claim 1 includes a polygonal cylinder-like body with openings at both ends, and a lid provided at the opening of at least one end of the body with the openings. A gist of the abdominal erection provided is that the abutment erection occurs at least at a corner of the main body and the lid is provided on the inner side of the outer peripheral surface of the main body along the radial direction.

According to this configuration, when handling the erection, even if the erection is caused and the corner portion of the main body collides with the ground or the like, for example, the lid body is not easily subjected to an impact.
The invention according to claim 2 is the abdominal erection according to claim 1, wherein the abdominal erection occurs at least at a corner of the erection main body, and the abdominal erection occurs from the end surface of the main body and extends along the length of the main body The gist is that the lid is provided on the side.

According to this configuration, it is possible to avoid that the lid body is directly subjected to an impact when the end surface of the flank collides with, for example, the ground.
The invention described in claim 3 is the abdominal erection according to claim 1 or 2, wherein the erection is suspended from at least one end of the abdominal erection main body. A member is provided, and the suspension member is located between the lid main body portion that closes the opening of the main body and the end surface of the main body.

According to this configuration, the lid main body portion is unlikely to be a hindrance when using or replacing the suspension member.
According to a fourth aspect of the present invention, in the uprising of the third aspect of the present invention, the suspension member is an annular member, and the annular member is inserted into the ring by the insertion member. And the insertion member is supported by the lid body and rises from the end surface of the abdominal main body and corresponds to a recess formed along the length direction of the main body. The gist is that the annular member is configured so as to be able to appear and retract through the recess by being arranged inside.

  The invention described in claim 5 is the abdominal erection according to claim 3, wherein the suspension member is slidably supported by the lid main body portion, so that the abdominal erection is caused from an end surface of the abdominal erection main body. The gist of the present invention is that the suspension member can be projected and retracted from a recessed portion that is recessed along the length direction.

  According to a sixth aspect of the present invention, in the flank according to the third aspect, the suspension member is rotatably supported between the lid main body portion and the end surface of the flank main body. The gist of the present invention is that the suspension member is configured to be raised and lowered from the opening of the body.

  According to the configuration of claims 4 to 6, when the suspension member is not used, it is easy to raise the suspension member and accommodate it inside the main body, and when the suspension member is used, the suspension member is It is easy to take out from the inside of the raising body.

  According to the present invention, the lid can be suitably protected.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
As shown in part in FIG. 1, the flank 11 has a rectangular tubular bulge body 12 having openings at both ends. The uplift 11 is a civil engineering member used for earth retaining in civil engineering work. As shown in FIG. 3, a sheet pile 61 for reinforcing the wall surface is brought into contact with the wall surface of the groove formed by excavating the soil. The sheet plate 61 is brought into contact with the long erected body 12 along the direction in which the groove is formed. Further, a columnar support member 62 is installed between the pair of bulges 11 opposed in the width direction of the groove. Such a support member 62 is connected to a water pressure pump (not shown) and is extended by the water pressure of the water pressure pump, thereby pressing the belly protuberances 11 arranged facing each other in the width direction of the groove toward the sheet pile 61. 1 and FIG. 2 show one end side in the length direction of the upset main body 12, and the configuration of the other end side in the length direction of the upset main body 12 is the same as the configuration of the one end side. The description is omitted.

  As shown in FIG. 1 and FIG. 2, the abdominal body 12 has a hollow structure to reduce the weight. A rib 12a extending along the length direction of the body 12 is integrally formed on the inner surfaces of both side walls of the body 12 so that the body 12 has a predetermined rigidity when used. It is comprised so that it may have. In addition, the abdominal body 12 of this embodiment is formed by extrusion molding of aluminum in order to improve durability and workability by weight reduction.

  A lid 13 formed by bending a plate material is attached to the opening of the body 12 which is erected. The lid body 13 has a lid body portion 14 that is erected and has a rectangular shape along the inner peripheral shape of the body 12, and the lid body portion 14 has a pair of ends extending from the upper end and the lower end thereof. A mounting portion 15 is provided. Slits 14a through which the ribs 12a are inserted are formed on both sides of the lid main body part 14, and the gap formed between the lid main body part 14 and the side walls of the body 12 is made as small as possible. ing.

  Each attachment portion 15 has a quadrangular shape, and a claw-like locking projection 15 a is bent at the center of each attachment portion 15. On the other hand, circular attachment holes 12b are formed through the upper wall and the lower wall of the body 12 that is erected. And each latching protrusion 15a is comprised so that it may each latch to each attachment hole 12b. By such locking, the lid 13 rises up and is fixed to the opening of the main body 12. Note that the lid 13 of the present embodiment is formed by pressing a steel plate. Thus, the cover body 13 is configured to be elastically deformable, so that the locking protrusion 15a can be locked to the attachment hole 12b using the elastic deformation.

  As shown in FIG. 2, the lid 13 fixed to the main body 12 is provided so that the entire body rises inside the main body 12. Here, the inner side of the abdominal body 12 is the inner side of the abdominal body 12 in the radial direction with respect to the outer peripheral surface of the main body 12, and the abdominal body is raised more than the end surface of the main body 12. The center side along the length direction is shown. The lid 13 provided in this way is suitably protected by the upset main body 12 by being surrounded by the upset main body 12.

  An annular member 51 for suspending the erection 11 is attached to the opening of the erection body 12. The annular member 51 is positioned between the lid main body portion 14 and the end surface of the main body 12 that is erected. By providing the annular member 51 in this manner, the lid main body portion 14 is unlikely to interfere with use or replacement of the annular member 51.

  Although the annular member 51 of the present embodiment is formed from a wire rope 51 a covered with a resin material, a synthetic fiber or natural fiber rope may be attached as the annular member 51. The wire rope 51a is mounted by being inserted into a pair of insertion holes 12c that are erected and penetrated through the upper wall of the main body 12, and the ends of the wire rope 51a are connected using a caulking tool 51b. Yes.

Next, the usage state of the abdomen 11 will be described.
After the sheet pile 61 is erected in the groove formed by excavating the soil, the abdomen 11 is suspended in the groove. At this time, a hook for suspension (not shown) is hooked on the annular member 51 to suspend the belly 11 and move the belly 11 to a predetermined height. At this time, since the annular member 51 is provided between the lid main body portion 14 and the end surface of the body 12, the lid main body portion 14 is unlikely to interfere with the use of the annular member 51. Next, the wall surface of the groove is earthed by raising the abdomen 11 against the sheet pile 61 using the support member 62. By repeating the soil excavation work and the earth retaining work in this way, the earth retaining groove is formed in a predetermined construction area. At this time, since the lid 13 is provided on the erection 11, the invasion of earth and sand into the inner side of the body 12 is suppressed.

  Then, when the construction in the groove is completed, the support member 62, the bulge 11 and the sheet pile 61 are sequentially removed from the groove. The removed support member 62, the erection 11 and the sheet pile 61 are used again for another civil engineering work. In such a series of operations, the end portion of the erection 11 often collides with the ground or other members. In particular, when the corner of the end of the main body 12 is caused to collide, the corner receives a large impact force. The lid body 13 of the present embodiment is provided so that the entire body rises and is inside the main body 12. For this reason, when handling the bulge 11, the lid 13 is prevented from receiving a direct impact when the flank and the end of the main body 12 collide with, for example, the ground.

The effects exhibited by this embodiment will be described below.
(1) Since the cover body 13 is provided so that the entire body rises inside the body 12, when handling the stomach 11, the edge of the body 12 collides with the ground or the like, for example. When this happens, the problem that the lid 13 is directly impacted is avoided. That is, the lid body 13 is suitably protected by the upset body 12 by being upset and surrounded by the main body 12. As a result, it is possible to suppress problems that the lid 13 is dropped or the lid 13 is damaged in handling the erection 11.

  (2) Since the annular member 51 is located between the lid main body portion 14 and the end surface of the main body 12, the lid main body portion 14 is unlikely to interfere with use or replacement of the annular member 51. Therefore, it is easy to sufficiently exhibit both the function of the lid 13 and the function of the annular member 51.

Note that the first embodiment may be modified as follows.
The lid body 13 is provided so that the entire body rises and is inside the main body 12. For example, as shown in FIG. 4, a part of the lid body 13 may rise and project outward from the end surface of the main body 12 along the length direction. Further, as shown in FIG. 4, a part of the lid 13 may be erected and protrude outward from the outer peripheral surface of the main body 12 along the radial direction. That is, in the above-described bulge 11, when the flank is raised and the corner of the main body 12 collides with the ground or the like, a large impact force is locally applied. The lid 13 is provided at the inner side in the radial direction with respect to the outer peripheral surface of the main body 12 at least at the corners of the uprising main body 12, so that a large impact force applied locally is directly applied to the lid. It becomes difficult to join 13. As a result, the lid 13 can be suitably protected.

  The lid 13 is provided at the opening at both ends of the body 12 raised upside, but the lid 13 may be provided only at the opening at one end of the body 12 raised up. Even in this case, it is possible to suppress the intrusion of earth and sand from at least the opening provided with the lid 13.

  The locking protrusion 15a and the attachment hole 12b may be omitted, and the lid 13 may be raised and attached to the main body 12 by, for example, raising the attachment portion 15 and welding it to the main body 12. Further, for example, the lid 13 may be erected and attached to the main body 12 by adhesion using an adhesive.

  The lid body 13 may be composed of at least one selected from rubber, elastomer and resin material, and the lid body 13 may be composed of a metal material and a material different from the metal material.

  The annular member 51 is located between the lid body 14 and the end surface of the body 12, but as shown in FIG. It may be located on the center side.

  The annular member 51 is provided at the openings at both ends of the body 12 that rises up. However, the annular member 51 may be provided only at the opening at one end of the body 12. Further, the annular member 51 may be omitted. In this case, for example, the abdominal erection 11 can be suspended by hooking a hook or the like to the opening of the main body 12 and the insertion hole 12c.

  The abdominal body 12 is formed in a quadrangular cylindrical shape, but may be changed to a hexagonal cylindrical shape, an octagonal cylindrical shape, or the like. That is, in the polygonal upset main body 12, a large impact force is likely to be applied locally at least at the corners, so the configuration of the lid 13 described above is extremely effective.

-While omitting the rib 12a of the erected body 12, the slit 14a may be omitted.
The abdominal body 12 is made of aluminum, but may be made of a metal material other than aluminum. Further, the upset body 12 may be formed of a resin material or a composite material in which a resin and a metal material are combined.

(Second Embodiment)
Next, a second embodiment will be described in detail with reference to FIGS. In addition, in 2nd Embodiment, since the attachment structure of the annular member 51 is mainly different from 1st Embodiment, it demonstrates centering around difference with 1st Embodiment.

  As shown in FIGS. 5 and 6, a rectangular recess 12 d is erected on the upper wall of the opening of the erection main body 12, and is erected from the end surface of the main body 12 along the length direction of the main body 12. It is recessed. The lid main body portion 14 is provided with an upper mounting portion 16 extending from the upper edge thereof. A pair of upper mounting portions 16 are provided apart along the upper edge of the lid main body portion 14, and a shaft support portion 17 that supports a cylindrical insertion member 18 is provided at the tip of each upper mounting portion 16. . Thus, the insertion member 18 rises in correspondence with the recess 12 d and is disposed inside the main body 12.

  On the other hand, the annular member 51 for suspending the erection 11 is attached to the main body 12 with the insertion member 18 being inserted into the ring so as to protrude and retract through the recess 12d as shown in FIG. Is done. That is, the insertion member 18 is arranged inside the body 12 so that the annular member 51 attached to the body 18 is placed inside the upper surface of the body 12.

  In addition, the side part attaching part 19 is provided in the cover main-body part 14 of this embodiment so that it may extend from the side edge. Then, the lid body 13 is erected and attached to the main body 12 by raising the upper attachment portion 16 and the side attachment portion 19 and screwing them to the main body 12.

  In order to suspend the belly protuberance 11 of the present embodiment, for example, a hook (not shown) is hooked on the annular member 51 accommodated in the main body 12 and the hook is not shown. Move. Then, as shown by a two-dot chain line in FIG. 6, the annular member 51 protrudes upward through the recess 12d. As described above, when the annular member 51 is used, the annular member 51 can be lifted up and easily taken out from the inside of the main body 12. On the other hand, after removing the hook from the annular member 51, the annular member 51 is erected through the recess 12 d and accommodated in the body 12 by pressing the annular member 51 downward as necessary. As described above, when the annular member 51 is not used, it is easy to raise the annular member 51 and accommodate it inside the main body 12.

Therefore, in this embodiment, in addition to the same effects as the effects (1) and (2) of the first embodiment, the following effects can be obtained.
(3) When the annular member 51 is used, the annular member 51 can be lifted up and easily taken out from the inside of the main body 12. On the other hand, when the annular member 51 is not used, the annular member 51 can be easily erected and accommodated inside the main body 12. For this reason, when the annular member 51 is not used, a problem that the annular member 51 is caught by another member is suppressed. Further, when storing the plurality of bulges 11, they can be efficiently stored by stacking the buns so that the upper surface and the lower surface of the main body 12 overlap. At this time, since the annular member 51 can be erected and accommodated inside the main body 12, the annular member 51 is unlikely to become an obstacle even in such stacking. Therefore, the abdomen 11 having excellent handleability is provided.

Note that the second embodiment may be modified as follows.
-The shape of the said recessed part 12d is not specifically limited, For example, circular arc shape may be sufficient.
The insertion member 18 is not limited to a cylindrical shape, and may be, for example, a quadrangular prism shape or a bent shape. Further, the shape of the shaft support portion 17 may be changed according to the shape of the insertion member 18.

  The upper mounting portion 16 can be omitted. In this case, the insertion member 18 can be attached by separately raising a member having the shaft support portion 17 on the main body 12. However, by providing the shaft support portion 17 in the lid main body portion 14 and attaching the insertion member 18 by the shaft support portion 17, the number of parts is reduced, so that the lid body 13 and the insertion member 18 can be easily attached.

(Third embodiment)
Next, a third embodiment will be described in detail with reference to FIGS. Note that the third embodiment will be described focusing on differences from the first and second embodiments.

  As shown in FIGS. 7 and 8, the lid main body portion 14 is provided with an upper mounting portion 16 so as to extend from the upper edge thereof, and the shaft support portion 17 in the second embodiment is omitted. A horizontal U-shaped slide member 52 is attached to the lid main body portion 14 by a pair of holding members 20 so as to be vertically slidable. As shown in FIG. 8, the slide member 52 is configured to appear and disappear through the recess 12d by up and down sliding. The slide member 52 is a member for hanging the belly 11 and is integrally formed from a columnar steel material. The slide member 52 has a connecting portion 52b that connects the tips of the pair of sliding portions 52a. The sliding portion 52 a is provided on the holding member 20 and is slidable between the holding member 20 and the lid main body portion 14. At the base end of each sliding portion 52a, a locking portion 52c is provided to prevent the sliding member 52a from coming off. Each of these locking portions 52c is locked to the holding member 20 in the usage state of the slide member 52 shown by a two-dot chain line in FIG.

  In order to suspend the abdomen 11 of the present embodiment, for example, a hook or the like (not shown) is hooked on the connecting portion 52b and the hook is moved upward. Then, the slide member 52 protrudes upward through the recess 12d as shown by a two-dot chain line in FIG. On the other hand, after removing the hook from the slide member 52, the slide member 52 is pressed downward as necessary, so that the slide member 52 rises through the recess 12 d and is accommodated inside the main body 12.

Therefore, in the present embodiment, the same effects as the effects (1) and (2) of the first embodiment and the effect (3) of the second embodiment are obtained.
Note that the third embodiment may be modified as follows.

-The shape of the slide member 52 is not particularly limited. That is, the slide member 52 only needs to include at least the sliding portion 52a, the connecting portion 52b, and the locking portion 52c.
The slide member 52 may be configured by forming the sliding portion 52a and the connecting portion 52b from a rope such as a wire rope 51a and a fiber rope and providing an engaging portion 52c on the rope.

  The holding member 20 may be formed integrally with the lid main body portion 14. In this case, the slide member 52 can be attached by forming the locking portion 52c after the holding member 20 holds the sliding portion 52a.

-You may comprise so that the said holding member 20 may be erected and provided in the main body 12. FIG.
(Fourth embodiment)
Next, a fourth embodiment will be described in detail based on FIG. 9 and FIG. Note that the fourth embodiment will be described with a focus on differences from the first to third embodiments.

  As shown in FIGS. 9 and 10, a rotating member 53 having a square frame shape is attached to the lid 13 so as to be rotatable. The rotating member 53 includes a pair of rotating arms 53a, a rotating shaft 53b that connects the base ends of the rotating arms 53a, and an arm connecting portion 53c that connects the distal ends of the rotating arms 53a. Both ends of the rotation shaft 53b are pivotally supported by the rotation support member 21, respectively. These rotation support members 21 are fixed to the lid body 14. In this way, the rotating member 53 is supported by the lid main body portion 14 so as to be rotatable, so that the rotating member 53 rises and can be projected and retracted from the opening of the main body 12. Each of the rotating arms 53a has a bent portion at a substantially central portion in the length direction, so that the arm connecting portion 53c, the lid main body portion 14, and the like in a state where the rotating member 53 rises and is accommodated in the main body 12. Are configured to be separated from each other. Thereby, for example, a hook or the like can be easily hooked on the arm connecting portion 53c, so that the rotating member 53 can be easily rotated.

  In order to suspend the abdomen 11 of this embodiment, for example, a hook (not shown) is hooked on the arm connecting portion 53c and the hook is moved upward. Then, the rotating member 53 rises as shown by a two-dot chain line in FIG. 10 and protrudes upward through the opening of the main body 12. On the other hand, after removing the hook from the rotation member 53, the rotation member 53 is urged to rotate upside down by opening the body 12 by pressing the rotation member 53 downward as necessary. Housed inside the body 12.

Therefore, in the present embodiment, the same effects as the effects (1) and (2) of the first embodiment and the effect (3) of the second embodiment are obtained.
The fourth embodiment may be configured as follows.

-The shape of the rotation member 53 is not particularly limited. That is, the rotation member 53 only needs to include at least the rotation arm 53a, the rotation shaft 53b, and the arm connecting portion 53c.
-The material of the rotation member 53 is not particularly limited, and may be made of metal or resin. Further, for example, each part constituting the rotating member 53 may be made of different materials.

The rotation support member 21 may be configured to rise up and be fixed to the main body 12.
-Although the bending part is formed in the said rotation arm 53a, you may abbreviate | omit the bending part.

The disassembled perspective view which shows the principal part of the stomach raising in 1st Embodiment. The perspective view which shows the principal part of abdominal erection. The perspective view explaining the use condition of abdominal erection. The perspective view which shows the modification of a cover body. The disassembled perspective view which shows the principal part of the stomach raising in 2nd Embodiment. The perspective view which shows the principal part of abdominal erection. The disassembled perspective view which shows the principal part of the stomach raising in 3rd Embodiment. The perspective view which shows the principal part of abdominal erection. The disassembled perspective view which shows the principal part of abdominal erection in 4th Embodiment. The perspective view which shows the principal part of abdominal erection.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Uprising, 12 ... Upset main body, 12d ... Recessed part, 13 ... Cover body, 14 ... Cover body part, 18 ... Insertion member, 51 ... Ring member as suspension member, 52 ... As suspension member Slide member, 53... Rotating member as a suspension member.

Claims (6)

In an abdominal erection comprising a polygonal cylindrical abdominal body having openings at both ends and a lid provided at the opening of at least one end of the abdominal body, at least at a corner of the abdominal body An abdominal erection characterized in that the lid is provided on the inner side along the radial direction from the outer peripheral surface of the main body. 2. The lid body is provided at a central side along the length direction of the main body that rises from the end face of the main body at least at the corner of the main body and rises from the end surface of the main body. Upset. A suspension member for suspending the abdominal erection main body is provided at an opening of at least one end of the erection erection main body, and the suspension member is a lid main body that closes the opening of the abdominal erection main body. The abdominal erection according to claim 1, wherein the abdominal erection is located between a portion and an end surface of the abdominal erection main body. The suspension member is an annular member, and the annular member is supported by the abdominal body by an insertion member inserted in the ring,
The insertion member is supported by the lid body, and is disposed inside the abdominal body corresponding to a recessed part which is abdominal from the end surface of the abdominal body and recessed along the length direction of the body. The abdominal erection according to claim 3, wherein the annular member is configured to be able to protrude and retract through the concave portion. The suspension member can be slidably supported on the lid main body portion, so that the suspension member can be projected and retracted from a concave portion that is bulged from the end surface of the body and is recessed along the length of the body. The abdominal erection according to claim 3, wherein The suspension member is configured to be able to turn up and down from the opening of the main body by supporting the suspension member rotatably between the lid main body and the end surface of the main body. The abdominal erection according to claim 3, wherein:

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