JP2007120223A - Sheet pile timbering structure for excavated ditch - Google Patents

Sheet pile timbering structure for excavated ditch Download PDF

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Publication number
JP2007120223A
JP2007120223A JP2005316268A JP2005316268A JP2007120223A JP 2007120223 A JP2007120223 A JP 2007120223A JP 2005316268 A JP2005316268 A JP 2005316268A JP 2005316268 A JP2005316268 A JP 2005316268A JP 2007120223 A JP2007120223 A JP 2007120223A
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Prior art keywords
sheet pile
joint
support
bellows
excavation
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JP2005316268A
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Japanese (ja)
Inventor
Tamiji Iimura
Hiroshi Matsuoka
廣志 松岡
民治 飯村
Original Assignee
Nippon Steel & Sumikin Metal Products Co Ltd
Shinsugeta Kogyo Kk
新菅田工業株式会社
日鐵住金建材株式会社
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Application filed by Nippon Steel & Sumikin Metal Products Co Ltd, Shinsugeta Kogyo Kk, 新菅田工業株式会社, 日鐵住金建材株式会社 filed Critical Nippon Steel & Sumikin Metal Products Co Ltd
Priority to JP2005316268A priority Critical patent/JP2007120223A/en
Publication of JP2007120223A publication Critical patent/JP2007120223A/en
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Abstract

The excavation can be carried out with a reduced number of beams 3 used in comparison with the prior art, and is excellent in workability and economy, as well as laying a buried pipe more quickly. Provide a sheet pile support structure for grooves.
A bellows raising material 2 is supported by a bellowing support material 4 configured to be slidable in a vertical direction along a sheet pile 1 and to be positioned at a desired height. The ends of the bellows 2 and 2 adjacent to each other in the longitudinal direction are connected to a joint member 5 having an opening that accommodates the ends, and in the groove width direction. A cutting beam 3 is attached between the joint members 5 and 5 arranged to face each other.
[Selection] Figure 2

Description

  This invention, when laying buried pipes such as gas pipes, water supply and sewer pipes, electric wires and telephone cables, sheet piles built and arranged along both side walls of the excavation groove, and horizontally applied along the sheet piles, In the technical field of sheet pile-type support construction, which consists of bellows erected in opposing arrangements, and a cutting beam that keeps the spacing between the bellows in opposing arrangements, and prevents sheet piles from collapsing due to earth pressure More specifically, the present invention relates to a sheet pile type support structure for excavation grooves that can be implemented with a smaller number of cut beams than conventional ones, and can lay a buried pipe more quickly.
  Much of the laying work for buried pipes is usually carried out by the open-cut method, and as a typical method conventionally used, for example, sheet piles are placed side by side on the both sides of the groove excavated to the depth of pipe laying, In this way, the gap between the flank members facing each other in the excavation groove is held by the beam to prevent the sheet pile from collapsing due to earth pressure, and in the extension direction of the buried pipe There is a method of excavation.
  As shown in FIG. 11, for example, the support used in this construction method is provided with columns a, etc., such as channel members in the arrangement facing each other at regular intervals along both side walls of the excavation groove. In order to maintain the gap in the groove width direction between the columns a and a in the arrangement, the cut beam 3 is installed almost horizontally, and is mounted at the same height as the beam 3 between the columns a and a in the longitudinal direction of the excavation groove. It is implemented with a structure that prevents the sheet pile from collapsing due to earth pressure by using the flank 2 and the plurality of sheet piles 1 arranged between the both side walls of the excavation groove and the flank 2. Incidentally, the symbol b in the figure indicates an erection support material, and is fixed to the support column a by fixing means such as welding (for example, FIG. 1 of Patent Document 1, FIG. 13 of Patent Document 2, and Patent Document) 3 of FIG. 3 and FIG. 7 of Patent Document 4).
  However, in actual construction work, for example, when the support structure is used for soft ground or the like, the lining material 2 and the cut beam 3 are installed in the soil before digging up to a predetermined lining material position. In order to cope with this, it has been desired to develop a support structure that can freely move up and down the positions of the erection material 2 and the cut beam 3 (see paragraph [0010] of Patent Document 2, and (See paragraph [0009] of Patent Document 3). In addition, in order to avoid the case where an existing buried pipe crosses the excavation groove, etc., it has been desired to develop a support structure that can freely move up and down the position of the bellows 2 and the cut beam 3. .
  Therefore, the present applicant has developed a bellows support material having a configuration that can slide in the vertical direction along the sheet pile 1 and can be positioned at any height, and positions of the bellows material 2 and the beam 3 Proposed a sheet pile type support structure for excavation grooves that can freely move up and down, and solved the above problem (see FIGS. 1 to 5 of Patent Document 3).
FIG. 12 schematically shows an overall view of a sheet pile-type support structure using the support member having the above-described structure. This support structure is opposed to a sheet pile 1 that is built and arranged along both side walls of the excavation groove, and a bellows member 2 that is applied in the horizontal direction along the sheet pile 1 and laid in an opposing arrangement. The bellows 2 such as a hydraulic jack or the like that holds the gap between the bellows 2 and 2 is arranged along the sheet pile 1 by the bellows support 4 having the above-described configuration. Is supported in a series of arrangement along the longitudinal direction of both side walls of the excavation groove. Incidentally, the illustrated example shows an excavation groove having a length of about 10 m, and the belly raising material 2 is vertically long and has a long length (about 4 m) along both side walls of the excavation groove. Two, one short (about 2m) are installed and a total of twelve are used. Two of the erection support members 4 are arranged at both ends of the erection member 2, and a total of 24 are used. The cut beams 3 are installed at both ends of the bellows raising material 2 and, if necessary, at an intermediate portion, and a total of 16 bodies are used in the upper and lower stages and eight in the longitudinal direction.
JP-A-8-277528 JP-A-9-144001 Japanese Patent Laid-Open No. 10-168881 Japanese Patent Laid-Open No. 10-266209
  The technique according to Patent Document 3 (FIG. 12) includes a bellows raising material 2 and a bellows support material 4 configured to be slidable in the vertical direction along the sheet pile 1 and to be positioned at an arbitrary height. Since the position of the cutting beam 3 can be freely moved up and down and positioned, it is a useful technique as described above.
  By the way, when the buried pipe is suspended in the support structure (excavation groove) having the above-described configuration, first, the upper cut beam 3 is first retracted to the sheet pile 1 side and suspended above the lower cut beam 3. After returning the cutting beam 3 to the original state, the lower cutting beam 3 is retracted to the sheet pile 1 side and lowered to the bottom surface of the groove. When the cutting beam 3 is retracted, a hydraulic jack or the like is used. When the pressing force of the beam 3 is released and the worker performs operations such as horizontal turning from the ground and returns to the original state, the worker performs horizontal turning from the ground and introduces the pressing force of the cutting beam 3. The work is very troublesome. Therefore, if the number of cut beams 3 used can be reduced, it is possible to provide a useful technique capable of performing the laying operation of the buried pipe more quickly as well as being excellent in workability and economy. it is obvious.
  The object of the present invention can be carried out with a reduced number of beams 3 used as compared with the prior art, and it is excellent in workability and economy, and moreover, the laying work of buried pipes can be carried out more quickly. It is providing the sheet pile type support structure for excavation grooves which can be performed.
As a means for solving the problems of the background art described above, the sheet pile support structure for excavation grooves according to the invention described in claim 1 is as shown in FIG.
A sheet pile 1 built in and arranged along the both side walls of the excavation groove, a bellows material 2 applied in the horizontal direction along the sheet pile 1 and laid in a mutually opposing arrangement, and a bellows material 2 arranged opposite to each other In the sheet pile type support structure composed of the cutting beam 3 that keeps the distance between the two,
The erection material 2 is supported by an erection support material 4 that is slidable in the vertical direction along the sheet pile 1 and can be positioned at a desired height, and the longitudinal direction of both side walls of the excavation groove. The ends of the bellows 2 and 2 adjacent to each other in the longitudinal direction are connected to a joint member 5 having an opening that accommodates the ends, and are relative to each other in the groove width direction. A cut beam is attached between the joint members 5 and 5 arranged to face each other.
The invention described in claim 2 is the sheet pile type support structure for excavation grooves according to claim 1,
As shown in FIG. 3, the belly support 4 is provided with a latching member 4 a that latches on the end 1 a of the sheet pile 1 on the back surface, and the bolt cradle 4 b and the bolt cradle 4 b on the bottom surface. And a thrust bolt 4c that presses the sheet pile 1 via the thrust bolt 4c. The thrust bolt 4c presses the sheet pile 1 to be positioned at a desired height.
  The invention described in claim 3 is the sheet pile type support structure for excavation grooves according to claim 1 or 2, as shown in FIG. 2, of the joint members 5, 5 arranged opposite to each other in the groove width direction. Among them, an insertion member 7 is provided on the side surface of one joint member 5, and an insertion plate 8 is provided at the proximal end of the cut beam 3, and the insertion member 7 of the joint member 5 is attached to the insertion member 7. The insertion plate 8 of the cut beam 3 is inserted and the cut beam 3 is attached to the joint member 5.
  The invention described in claim 4 is the sheet pile type support structure for excavation grooves according to any one of claims 1 to 3, as shown in FIG. 2, the joint member 5 has an upper portion thereof, A stopper 9 that can be freely set and released to prevent the insertion plate 8 of the cut beam 3 from being pulled upward is provided.
  In the invention described in claim 5, in the sheet pile type support structure for excavation grooves according to any one of claims 1 to 4, as shown in FIGS. 2 and 8, the joint member 5 includes: A grip portion 10 having an inverted U shape or the like is provided on the upper portion thereof.
  The invention described in claim 6 is the urging member connected to the joint member 5 as shown in FIG. 4 or the like in the excavation groove sheet pile support structure according to any one of claims 1 to 5. In order to prevent the end portion of 2 from coming off, a wedge material 6 such as a detachable cotter is inserted into the gap between the opening portion of the joint member 5 and the end portion of the bellows material 2. And
  The invention described in claim 7 is the sheet pile type support structure for excavation grooves according to any one of claims 1 to 6, and as shown in FIG. 2 and FIG. And is attached to the side surface of the joint member 5 via two orthogonal rotating shafts 12 and 13 so that it can be retracted to a position along the upper surface or the lower surface of the bellows member 5. Features.
  According to the sheet pile type support structure for excavation grooves according to the inventions described in claims 1 to 4, in a state where both ends of the urging member 2 are stabilized by the erection support member 4 that can be easily positioned on the sheet pile 1. The end portions of the adjacent flank members 2 and 2 can be reliably connected to each other by the joint member 5, and the cutting beam 3 is attached by the insertion member 7 provided on the joint member 5. It can be installed securely. Therefore, conventionally, it is possible to carry out the beams 3 and 3 (refer to the symbol Y in FIG. 12), which required two in total, one at each end of the adjacent bell-raised members 2 and 2, with one beam. Yes (see symbol X in FIG. 1). Therefore, since the number of cut beams used can be reduced as compared with the prior art, it is possible to carry out the laying operation of the buried pipe more quickly as well as being excellent in workability and economy. .
  According to the excavation groove sheet pile type support structure according to the invention described in claim 5, in addition to the above-described effect, the operator uses the grip portion 10, so that the end of the erection material 2 on the joint member 5 is obtained. In addition to facilitating the operation of connecting the portions, the position of the end portion of the bellows member 2 relative to the joint member 5 can be easily finely adjusted by hitting the grip portion 10 with a small hammer or the like.
According to the sheet pile type support structure for excavation grooves according to the invention described in claim 6, in addition to the above effect, the connection state between the joint member 5 and the ends of the adjacent flank members 2 and 2 is further improved. It can be strengthened and a more stable support structure can be realized.
  According to the sheet pile type support structure for excavation grooves according to the invention described in claim 7, in addition to the above effect, the cut beam 3 can be retracted to substantially the same plane as the bellows 2, The cut beam 3 does not interfere with the laying operation of the buried pipe, and the width of the excavation groove can be reduced correspondingly, which is economical.
  The excavation groove sheet pile support structure according to the present invention is implemented as follows in order to achieve the effects of the above-described invention.
  FIG. 1 schematically shows a sheet pile support structure for excavation grooves according to claim 1. 2A and 2B show in detail the pivotal part (reference X part) of FIG. This support structure is constructed by arranging sheet piles 1 built and arranged along the both side walls of the excavation groove, and bellows erected in a horizontal arrangement along the sheet piles 1 and opposed to each other. 2 and a cross beam 3 that maintains an interval between the two angling members 2, and the urging member 2 is slidable in the vertical direction along the sheet pile 1 and can be positioned at a desired height. It is supported by the flank support material 4 of the structure, and it is constructed along the longitudinal direction of the both side walls of the excavation groove, and the ends of the flank materials 2 and 2 adjacent to each other in the longitudinal direction are connected to each other. The cutting beam 3 is attached between the joint members 5 and 5 that are connected to the joint member 5 having an opening that accommodates and is opposed to each other in the groove width direction (invention 1).
  FIGS. 3A to 3D each show a state in which the upright support material 4 is attached to the sheet pile 1. The belly support 4 is provided with a latching member 4a to be hooked to the end 1a of the sheet pile 1 on the back surface, and the bottom plate 1 is pressed against the bottom plate via the bolt stand 4b and the bolt stand 4b. The thrust bolt 4c is provided, and an operator can perform positioning at an arbitrary height by pressing the sheet pile 1 with the thrust bolt 4c using the bolt fastening handle 4d. 2).
  Specifically, the sheet pile 1 according to the present embodiment uses a steel sheet pile 1, the belly raising material 2 uses a square steel pipe, and the belly raising support material 4 that supports the belly raising material 2 has a J-shaped cross section ( 3B), or using a steel material having a U-shaped cross section, the bellows 2 is implemented with a structure that can be attached from above. As shown in FIG. 3D, the latching member 4a provided on the back surface of the erection support material 4 is similarly bent into a U shape so as to engage with the end portion 1a of the steel sheet pile 1 bent into a U shape. The hanging support member 4a is attached to the end portion 1a from above, so that the upright support material 4 is attached to the steel sheet pile 1 so as to be slidable in the vertical direction. The bolt cradle 4b provided on the bottom surface of the erection support member 4 includes a nut 4e and is arranged in a bilaterally symmetrical manner, and is implemented by attaching a thrust bolt 4c to each.
  Therefore, the bellows support member 4 having the above-described configuration is configured such that the latch member 4a is latched on the end 1a of the steel sheet pile 1 to be slidable, and the bolt fastening handle 4d is moved from the vertical state at a desired height position. By turning the steel sheet pile 1 in a horizontal state (see FIG. 3B) and pressing the steel sheet pile 1 with the thrust bolt 4c, the bellow support member 4 can be fixed to the steel sheet pile 1 and positioned.
  The bolt fastening handle 4d that presses the thrust bolt 4c does not protrude inward from the vertical surface of the support member 4 in order to avoid collision with the buried pipe in consideration of the laying work of the buried pipe. It is preferable to implement the configuration. By the way, the belly support material 4 according to the present embodiment is implemented by arranging two in total, one at each end of the one bellows support material 2.
  Both ends thereof are supported by the erection support material 4, and the ends of the erection materials 2, 2 adjacent in the longitudinal direction are connected by a joint member 5 shown in FIGS. The joint member 5 according to the present embodiment is made of steel and has a size that can sufficiently accommodate the bellows 2 and is formed into a C-shaped cross section (see FIG. 4C).
  In addition, the cross-sectional structure of the joint member 5 is not limited to the C-shape, and may be implemented by a structure formed into a square shape as shown in FIG. In short, the cross-sectional structure of the joint member 5 is not particularly limited as long as it has a shape and size capable of connecting the ends of the bellows 2. The reason why the size of the opening of the joint member 5 is sufficiently large in the vertical direction as in the present embodiment is that the end of the bellows 2 is connected to the joint member 5. In addition to facilitating the work to be performed, as shown in FIG. 6A, the connecting work can be easily performed even when the level of the adjacent belly raising material 2 is slightly deviated depending on the work situation in the field. . However, with respect to the size of the opening of the joint member 5, it is not preferable to perform with a margin in the lateral direction in consideration of the laying operation of the buried pipe. Is carried out with a width that can fit and slide.
  In the method of connecting the ends of the bellows 2 with the joint member 5 in the illustrated example, first, the joint member 5 is inserted into the end of the bellows 2 that has been erected for a sufficient length. The joint member 5 is slid and coupled so as to straddle the end portion of the bellows material 2 laid in series with the bellows material 2.
  As shown in FIGS. 4A and 4B, the connection between the end portions of the bellows members 2 and 2 with respect to the joint member 5 is inserted with approximately the same length with a slight gap in the substantially central portion of the joint member 5. Of course, it is not limited to the connected state, and of course depends on the work situation at the site. That is, as shown in FIG. 6B, there is a case where it is carried out in a connected state in which the ends of the erection members 2 and 2 are butted together at substantially the center of the joint member 5, or as shown in FIG. Or it may be carried out in a connected state biased to the right).
  Incidentally, in order to prevent the end portion of the erection material 2 from coming off from the joint member 5, the gap between the opening portion of the joint member 5 and the end portion of the erection material 2 is as shown in FIG. 4B. It is preferable to carry out by inserting a wedge material 6 such as a detachable cotter (the invention according to claim 6).
  In addition, this sheet pile type support structure has a central portion as shown in FIG. 2 or the like on the side surface of one joint member 5 among the joint members 5 and 5 arranged opposite to each other in the groove width direction. The insertion member 7 is provided by fixing means such as welding, and the insertion plate 8 is provided at the proximal end of the cut beam 3, and the insertion member 7 of the joint member 5 is provided with the cutting member 7. The cut beam 3 is attached to the joint member 5 by inserting the insertion plate 8 of the beam 3 (invention according to claim 3). Incidentally, the side surface of the other joint member 5 is not particularly required to be provided with the insertion member 7 or the like as shown in FIG.
  The insertion member 7 includes a groove-shaped member 7a having a C-shaped cross section that can insert the insertion plate 8 of the cut beam 3 in the vertical direction and restrains the movement in the horizontal direction, and a stopper 7b provided in the lower part thereof. It consists of. Therefore, the cutting beam 3 can be inserted into the insertion plate 8 along the groove member 7a of the insertion member 7 until it comes into contact with the stopper 7b, and can be securely fixed to the side surface of the joint member 5. It is implemented in a structure that can. Incidentally, the structure of the insertion member 7 and the insertion plate 8 is not limited to the illustrated example, and any structure may be used as long as the cut beam 3 can be securely hooked to the side surface of the joint member 7.
  When the gap between the insertion member 7 and the insertion plate 8 is narrow, the insertion plate 8 is pulled out upward and the cut beam 3 is hardly dropped, but when the gap is wide, 2 and FIG. 4, it is preferable to carry out by providing a stopper 9 which can be set and released at the upper part of the joint member 5 to prevent the insertion plate 8 of the cut beam 3 from being pulled upward ( Invention of Claim 4). In this embodiment, the stopper 9 set by rotating in the direction perpendicular to the bellows 2 and the right end of the horizontal rotary shaft 13 provided on the base end side of the cut beam 3 are seen from the plane direction. By carrying out the structure design to be superposed (see FIG. 4A), the insertion plate 8 of the cut beam 3 is prevented from coming out upward. Incidentally, reference numeral 11 in the drawing denotes a restraining tool that restrains the rotation of the stopper 9.
  In addition, it is preferable that the joint member 5 is provided with a grip portion 10 such as an inverted U-shape on the upper portion thereof (the invention according to claim 5). The grip portion 10 according to this embodiment is integrally fixed to the upper center of the joint member 5 by a fixing means such as welding. The holding unit 10 allows the operator to grip the gripping part 10 so that the end of the bellows member 2 can be easily connected to the joint member 5 and hit the gripping part 10 with a small hammer or the like. Thus, there is an advantage that the position of the end portion of the erection material 2 relative to the joint member 5 can be easily finely adjusted.
  The cutting beam 3 attached to the joint member 5 uses a so-called hydraulic jack, and is configured to be stretchable so that it can be retracted to a position along the upper surface or the lower surface of the bellows 2 so as to be retracted to two orthogonal rotation shafts. It is attached to the joint member via 12 and 13 (invention of claim 7). The procedure for retracting the cut beam 3 is to release the pressing force of the cut beam (horizontal jack) 3 and to turn the cut beam 3 horizontally around the vertical rotating shaft 12 as shown in FIGS. 7A and 7B. It is made to be in the state which is made to be almost in parallel with the stomach raising material 2. Next, as shown in FIG. 7C, it is vertically rotated about the horizontal rotation shaft 13 and placed on the upper part of the belly raising material 2. According to this procedure, the cut beam 3 can be retracted to substantially the same plane as the bellows 2 and the cut beam 3 does not interfere with the laying operation of the buried pipe, and accordingly, the width of the excavation groove is increased. Can be made narrower, which is economical.
  As described above, the excavation groove sheet pile type support structure having the above-described configuration can stably support both ends of the bellows raising material 2 by the belly raising support material 4 that can be easily positioned on the sheet pile 1. The end portions of the adjacent erection members 2 and 2 can be reliably connected by the joint member 5, and the cutting beam 3 can be reliably installed by the insertion member 7 provided in the joint member 5. It is. Therefore, it is possible to carry out the cut beams 3 and 3 (refer to the symbol Y in FIG. 12), which conventionally required two pieces one by one at the end portion of the adjacent bell-raised material 2, with one cut beam. Yes (see symbol X in FIG. 1).
  Specifically, when the excavation groove having a length of about 10 m is used, as shown in FIG. 1, the bellows 2 is vertically arranged in two steps along the both side walls of the excavation groove and in the longitudinal direction. Two long (about 4m) and one short (about 2m) are installed, and a total of 12 are used. Two of the erection support members 4 are arranged at both ends of the erection member 2, and a total of 24 are used. The cut beam 3 is constructed at one end between the adjacent erection members 2 and 2 and, if necessary, at an intermediate part of the erection member 2, and is composed of six bodies in the longitudinal direction in two steps. A total of 12 are used.
  Therefore, the sheet pile type support structure for excavation grooves according to FIG. 1 is compared with the conventional sheet pile type support structure for excavation grooves according to FIG. Since it can be carried out with a total of 4 units, 2 in the upper stage and 2 in the lower stage, the construction work and the economic efficiency are of course improved. It can be done quickly.
  The embodiments have been described with reference to the drawings. However, the present invention is not limited to the illustrated examples, and includes a range of design changes and application variations that are usually made by those skilled in the art without departing from the technical idea thereof. I will mention that just in case.
  For example, FIGS. 9 and 10 show variations of the joint member 5. Specifically, FIG. 9 shows a joint member 5 ′ corresponding to the proximal end of the cut beam 3, and FIG. 10 shows a joint member 5 ′ corresponding to the distal end of the cut beam 3. Incidentally, reference numeral 14 in the figure denotes a fastener, reference numeral 15 denotes a pocket for storing the wedge material 6 such as the cotter, and reference numeral 16 denotes the fastener 14 and the wedge material 6. The stainless steel wire which connected is shown. The joint member 5 ′ having such a configuration has an advantage that a smooth connecting operation can be performed because the wedge member 6 such as a cotter can be provided.
It is the bird's-eye view which showed roughly the whole structure of the sheet pile type support structure for excavation grooves concerning Claim 1. A and B are pivotal views showing a portion X in FIG. 1. A is a perspective view showing a state in which the support material is attached to the sheet pile, B is a side view, and C is a perspective view showing a state in which the support material is attached to the support material. And D is a bottom view of the upset support material. A is a top view which showed the connection state of the joint member and the edge part of adjacent belly raising material, B is the same front view, C is the same right view. A is a side view showing a variation of the joint member. AC is a front view which showed the variation of the connection state of the edge part of a joint member and the adjacent belly raising material, respectively. AC is the perspective view which showed in steps the procedure which raises a cut beam and retreats to the upper surface of a material. It is the perspective view which showed the structure of the joint member which receives the front-end | tip part of a cut beam, and the front-end | tip part. A is the top view which showed the variation of the joint member, B is the front view, C is the right side view. A is the top view which showed the variation of the joint member, B is the front view, C is the right side view. It is a bird's-eye view which showed the sheet pile type support structure for excavation grooves using pillars, such as a channel shape material, concerning a prior art. It is the bird's-eye view which showed the sheet pile type support structure for excavation grooves which replaced the support | pillar with the sheet pile based on a prior art.
Explanation of symbols
DESCRIPTION OF SYMBOLS 1 Sheet pile 2 Waist raising material 3 Cutting beam 4 Waist raising support material 4a Latching member 4b Bolt stand 4c Thrust bolt 4d Bolt fastening handle 4e Nut 5 Joint member 6 Wedge material 7 Insertion member 7a Groove shape member 7b Stopper 8 Insertion plate 9 Stopper 10 Grasping part 11 Restraint 12 Rotating shaft 13 Rotating shaft 14 Fastener 15 Pocket 16 Stainless wire a Strut b Bump support

Claims (7)

  1. The distance between the sheet piles built in and arranged along the two side walls of the excavation groove, the bellows laid in the horizontal direction along the sheet piles, In the sheet pile type support structure consisting of the cutting beam to hold,
    The erection material is slidable in the vertical direction along the sheet pile, and is supported by an erection support material configured to be positioned at a desired height, along the longitudinal direction of both side walls of the excavation groove. The joint members that are constructed and are connected to a joint member having an opening that accommodates the ends of the bellows members adjacent to each other in the longitudinal direction, and facing each other in the groove width direction. A sheet pile-type support structure for excavation grooves, characterized in that cut beams are attached between them.
  2.   The anti-raising support material includes a latching member that latches on an end portion of the sheet pile on a back surface thereof, and a bolt bolt that thrusts the sheet pile via the bolt mount on the bottom surface. The sheet pile type support structure for excavation grooves according to claim 1, wherein the sheet pile is configured to be positioned at a desired height by pressing the sheet pile with the thrust bolt.
  3.   Of the joint members arranged opposite to each other in the groove width direction, an insertion member is provided on a side surface of one of the joint members, and an insertion plate is provided at a proximal end of the cut beam. The sheet pile support structure for excavation grooves according to claim 1, wherein the insertion plate of the cutting beam is inserted into the insertion member, and the cutting beam is attached to the joint member.
  4.   The joint member is provided with a settable / releasable stopper at an upper portion thereof to prevent the insertion plate of the cut beam from being pulled upward. The sheet pile type support structure for excavation grooves described in 1.
  5.   The sheet pile support structure for excavation grooves according to any one of claims 1 to 4, wherein the joint member is provided with a gripping portion such as an inverted U-shape at an upper portion thereof.
  6.   In order to prevent the end portion of the bellows member connected to the joint member from slipping out, a wedge material such as a detachable cotter is inserted into the gap between the opening portion of the joint member and the end portion of the bellow member. The sheet pile type support structure for excavation grooves according to any one of claims 1 to 5, wherein
  7.   The cut beam is a stretchable structure, and is attached to the side surface of the joint member via two orthogonal rotation shafts so as to be retracted to a position along the upper surface or the lower surface of the bellows material. The sheet pile type support structure for excavation grooves according to any one of claims 1 to 6, characterized in that.
JP2005316268A 2005-10-31 2005-10-31 Sheet pile timbering structure for excavated ditch Pending JP2007120223A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
GB2530292A (en) * 2014-09-17 2016-03-23 Glenn Roy Wood Trench wall support
JP2016089478A (en) * 2014-11-05 2016-05-23 ヒロセ株式会社 Frame structure of earth retaining wall

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JP2016089478A (en) * 2014-11-05 2016-05-23 ヒロセ株式会社 Frame structure of earth retaining wall

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