EP2423389B1 - Palplanche en acier composite et rideau de palplanche en acier utilisant la palplanche en acier composite - Google Patents

Palplanche en acier composite et rideau de palplanche en acier utilisant la palplanche en acier composite Download PDF

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Publication number
EP2423389B1
EP2423389B1 EP10767049.9A EP10767049A EP2423389B1 EP 2423389 B1 EP2423389 B1 EP 2423389B1 EP 10767049 A EP10767049 A EP 10767049A EP 2423389 B1 EP2423389 B1 EP 2423389B1
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EP
European Patent Office
Prior art keywords
steel sheet
sheet pile
steel material
shape
composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10767049.9A
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German (de)
English (en)
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EP2423389A4 (fr
EP2423389A1 (fr
Inventor
Naoya Nagao
Hiroyuki Tanaka
Akihisa Kameyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel and Sumitomo Metal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2009102624A external-priority patent/JP4760948B2/ja
Priority claimed from JP2009102625A external-priority patent/JP4798251B2/ja
Priority claimed from JP2009102623A external-priority patent/JP4666088B2/ja
Application filed by Nippon Steel and Sumitomo Metal Corp filed Critical Nippon Steel and Sumitomo Metal Corp
Publication of EP2423389A1 publication Critical patent/EP2423389A1/fr
Publication of EP2423389A4 publication Critical patent/EP2423389A4/fr
Application granted granted Critical
Publication of EP2423389B1 publication Critical patent/EP2423389B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
    • E02D5/06—Fitted piles or other elements specially adapted for closing gaps between two sheet piles or between two walls of sheet piles

Definitions

  • This invention relates to a composite steel sheet pile which comprises a steel sheet pile and a shape steel material such as an H-shaped steel member extending in the longitudinal direction of the steel sheet pile, the shape steel material being disposed on one side of the steel sheet pile, and also to a structure of a steel sheet pile wall which is constructed using the composite steel sheet pile, and it is useful in applications to retaining walls, impermeable walls and the like (inclusive of walls such as underground continuous walls).
  • an H-shaped steel member or like shape steel material is mounted as a rigidity increasing steel material to one side of a steel sheet pile such as a U-shaped steel sheet pile, a straight-shaped steel sheet pile and a hat-shaped steel sheet pile that form a retaining wall, an impermeable wall or the like.
  • Patent document 1 describes one arrangement which is such that a steel sheet pile 52 is provided on one of both sides thereof with a worked jig 54, into which a shape steel material 53 such as an H-shaped steel member is adapted to be fitted as a rigidity increasing steel material, as shown in FIGS. 17(a) and 17(b) .
  • the steel sheet pile 52 and the rigidity increasing steel material 53 are adapted to be separately driven into the ground in a construction site into the integrated form.
  • Patent document 2 describes an underground continuous wall steel material 61 which is composed of a steel sheet pile 62 provided at both ends thereof with joints and an H-shaped or T-shaped steel member as a rigidity increasing steel material 63, wherein the web section of the steel sheet pile 62 and the flange section of the H-shaped or T-shaped steel member as the rigidity increasing steel material 63 are longitudinally overlapped with each other, only one end of the overlapped section in the longitudinal direction thereof being placed under restraint, as shown in FIGS. 18(a) and 18(b) .
  • the Patent document 3 describes an underground continuous wall-structure steel member 71 which has an H-shaped steel member 73 whose flange section on one side thereof is secured to the inside of the web section of a hat-shaped steel sheet pile 72 manufactured by hot rolling, wherein the width of the secured one of the flange sections in the H-shaped steel member 73 is not more than the web section width of the hat-shaped steel sheet pile 72.
  • the web section of the hat-shaped steel sheet pile 72 and the flange section of the H-shaped steel member 73 are adapted to be secured together using any of securingmeans selected from a group consisting of welding, bonding, bolting, riveting, screwing and tacking.
  • the steel sheet pile and the rigidity increasing steel material such as the H-shaped steel member 53 need to be separately driven into the ground, and in accordance with that, the problem of the reduced efficiency in execution of construction works arises.
  • the deflection behaviors of the steel sheet pile and the rigidity increasing steel material such as the H-shaped steel member should coincide with each other.
  • its application is limited to the structure which is such that the steel sheet pile side (refer to the upper side in FIG. 17 ) thereof receives an earth pressure.
  • the steel sheet pile and the H-shaped or T-shaped steel member as the rigidity increasing steel material are secured together only in one end of the overlapped section in the longitudinal direction thereof, and thus, it may well be that the disconnection of the steel sheet pile and the H-shaped or T-shaped steel member from each other will occur in the ground.
  • the bottom of the overlapped section would be given temporal securing in the case of the firm ground.
  • the steel sheet pile and the H-shaped or T-shaped steel member if secured together in both ends of the overlapped section, bring about restraint of their longitudinal deformations, resulting in the danger of buckling.
  • the width of the H-shaped steel member needs to be smaller than the web width of the steel sheet pile if the H-shaped steel member is disposed inside the web section of the steel sheet pile, and accordingly, the size limitation is imposed on the H-shaped steel member. Or, there is a need to use a special-sized H-shaped steel member whose flanges at both ends thereof have different lengths as shown in FIG. 19(b) .
  • An object of the present invention is to solve the problems in the above prior arts, more specifically, to provide a composite steel sheet pile and a steel sheet pile wall which comprise a steel sheet pile and a rigidity increasing steel material which are not fully integrated with each other but are combined with each other as superposed beams in such a manner that the deflection behaviors of the steel sheet pile and the rigidity increasing steel material almost coincide with each other in order to give the configuration which eliminates labor and cost required for welding, shape measurement, correction work, processing management and the like, and allows the composite steel sheet pile and the steel sheet pile wall to be stored and transported with high efficiency.
  • a composite steel sheet pile according to the present invention comprises a steel sheet pile and a rigidity increasing shape steel material extending in the longitudinal direction of the steel sheet pile, the shape steel material being disposed on one side of the steel sheet pile, wherein the shape steel material is joined to the steel sheet pile in more than one joining point of the shape steel material in the longitudinal direction thereof in such a manner that at least to one joining point thereof is applied a structure that is to permit the steel sheet pile and the shape steel material to be longitudinally displaced from each other in order that the deflection behaviors of the steel sheet pile and the shape steel material may almost coincide with each other.
  • the present invention does not necessarily apply joining point limitation to both ends of the shape steel material in the longitudinal direction thereof, and may also include cases where except for one of the joining points, the others involve no end, or where any more than one joining point involves no end but the middle of the shape sheet material in the longitudinal direction thereof.
  • the composite steel sheet pile of the present invention having the above configuration is accordingly such that the steel sheet pile and the shape steel material are combined with each other as superposed beams, and this permits the steel sheet pile and the shape steel material to be longitudinally displaced from each other and avoids substantially the shearing force transmission between the steel sheet pile and the shape steel material, resulting in that the deflection behaviors of the steel sheet pile and the shape steel material almost coincide with each other.
  • the steel sheet pile is not necessarily limited to a U-shaped steel sheet pile, a straight-shaped steel sheet pile, a hat-shaped steel sheet pile and the like.
  • the hat-shaped steel sheet pile as described later is desirably employed.
  • an H-shaped steel member considered as a highly efficient material from the viewpoint of the relation to the cross-section rigidity and/or the cost is in general use, it need not be limited to the H-shaped steel member in all cases.
  • the rigidity increasing shape steel material is not necessarily provided as long as the full length of the steel sheet pile in the longitudinal direction thereof, and it would be possible also to employ a shape steel material having a length smaller than a steel sheet pile length according to the requirements for design or the like. Alternatively, it would be possible also to arrange more than one short shape steel material discontinuously in the longitudinal direction of the steel sheet pile.
  • the shape steel material can be driven into the ground in such a manner that it is integrated with the steel sheet pile as the composite steel sheet pile.
  • the shape steel material is joined to the steel sheet pile in both ends plus the middle of the shape steel material in the longitudinal direction thereof, it would be possible also to secure the joined part of the middle thereof to the steel sheet pile in order to apply both ends thereof to permit the displacement. Alternatively, it would be possible also to secure one end of the shape steel material to the steel sheet pile in order to apply the other end and the middle thereof to permit the displacement.
  • the bolts must be sufficient in number to meet the requirement under which the deflection behaviors of the steel sheet pile and the shape steel material are allowed to almost coincide with each other in cases where the rigidity increasing shape steel material side of the composite steel sheet pile receives an earth pressure.
  • the bolts will be usually arranged in one or more than one row at predetermined intervals in such position as to be at each of the opposite sides of the flange with the web between.
  • the tension-type bolted connection using the required number of bolts can avoid increasing the deformation of only the steel sheet pile which is smaller in flexural rigidity than the rigidity increasing shape steel material, and thus allows the deflection behaviors of the steel sheet pile and the rigidity increasing shape steel material to coincide with each other.
  • a tensile force ⁇ resulting from summing up the tensile forces of more than one longitudinally spaced bolt in applications of the tension-type bolted connection to join the steel sheet pile and the shape steel material together may be to meet the requirement given by the following expression (1).
  • I represents the width of the steel sheet pile
  • a represents the width of the shape steel material
  • I 1 represents the moment of inertia of area of the steel sheet pile
  • I 2 represents the moment of inertia of area of the shape steel material
  • p represents an earth pressure acting on the shape steel material side of the composite steel sheet pile.
  • the above expression (1) is to indicate the requirement under which the deflection behaviors of the steel sheet pile and the shape steel material as the rigidity increasing steel material are allowed to almost coincide with each other by the tension-type bolted connection.
  • the structure applied to the joining point, or the structure that is to permit the steel sheet pile and the shape steel material to be longitudinally displaced from each other may be of a type given by a combination of a joining bolt and an elongate bolt hole provided at least in one of the steel sheet pile and the shape steel material or a bolt hole having a size greater than a bolt hole having a size appropriate for the bolt diameter.
  • the steel sheet pile may include hat-shaped steel sheet piles which are connected together by engagement between joints provided at both ends of each steel sheet pile in the width direction thereof, the connection beingmade in such a manner that protrusions and recesses in a cross-section perpendicular to the longitudinal direction face the same direction.
  • the hat-shaped steel sheet piles are adapted to be connected together by engagement between joints provided at both ends of each hat-shaped steel sheet pile in the width direction thereof, the connection being made in such a manner that protrusions and recesses in a cross-section perpendicular to the longitudinal direction face the same direction.
  • the composite steel sheet pile of the present invention is originally such that the steel sheet pile and the shape steel material are not fully integrated with each other from the physical point of view, and thus, there would not be much influence on the cross-section rigidity by a difference in the mounting surface or mounting position of the shape steel material to the steel sheet pile.
  • mounting the shape steel material to the recess section of the hat-shaped steel sheet pile can provide a compact-sized composite steel sheet pile which thus may hold down a steel sheet pile wall to a smaller wall thickness, and is also suitable to be driven into the ground in state where the shape steel material and the steel sheet pile are in the combined form.
  • the composite steel sheet pile of the present invention it would be possible also to join the steel sheet pile and the shape steel material together through a steel material as a spacer interposed between the steel sheet pile and the shape steel material.
  • the width of the H-shaped steel member needs to be smaller than the web width of the steel sheet pile if the shape steel material is disposed inside the recess section of the hat-shaped or U-shaped steel sheet pile, and accordingly, the size limitation is imposed on the H-shaped steel member.
  • the recess section of the hat-shaped or U-shaped steel sheet pile has usually an outwardly (or toward the opening side) widening spacing.
  • the steel material as the spacer may be a steel sheet, or alternatively, in cases of the need for a wider spacer spacing, it would be possible also to use other steel materials such as channel steels and square steels. However, in either case, the required minimum spacer spacing is determined depending on the size relation between the steel sheet pile and the shape steel material. Alternatively, it would be possible also to arrange more than one steel sheet in layers for spacer spacing adjustment, for instance.
  • means of mounting the spacer is not particularly limited to bolting, welding, drill screw threads and the like.
  • a steel sheet pile wall of the present invention comprises more than one steel sheet pile, the steel sheet piles being connected together through joints provided at both ends of each steel sheet pile, wherein the steel sheet piles employ, at least in part, the composite steel sheet pile having any of the above configurations.
  • All the steel sheet piles are not necessarily limited to the composite steel sheet pile, and it would be possible also to provide, according to the required strength of the steel sheet pile wall, the appropriately mixed arrangement composed of the composite steel sheet piles of the present invention and the usual type of steel sheet piles with no shape steel member mounted.
  • the steel sheet piles that form the composite steel sheet piles are arranged on the earth pressure receiving side or the high earth pressure developing side thereof.
  • the steel sheet piles that form the composite steel sheet piles are more easily subjected to flexural deformation than the shape steel materials.
  • the configuration of the composite steel sheet pile of the present invention if provided for the steel sheet pile wall, allows the deflection behavior of the shape steel material to follow that of the steel sheet pile.
  • the flexural deformation of the steel sheet pile will be so increased that the deflection behaviors of the steel sheet pile and the shape steel material fail to coincide with each other.
  • the composite steel sheet pile of the present invention is such that the steel sheet pile and the rigidity increasing shape steel material are not integrated with each other but are combined with each other as superposed beam, and thus, provides the advantage that the deflection behaviors of the steel sheet pile and the rigidity increasing shape steel material are allowed to almost coincide with each other, resulting in that no buckling will occur, as compared with the prior art which is such that the steel sheet pile and the rigidity increasing shape steel material are integrated with each other.
  • the composite steel sheet pile of the present invention permits less labor and less cost for welding, shape measurement, correction work and processing management.
  • the steel sheet pile and the rigidity increasing shape steel material or the spacer can be transported separately to a construction site, and combined together in the site, followed by being driven into the ground in the integrated form, and this allows the steel sheet pile and the rigidity increasing shape steel material or the spacer to be stored and transported with high efficiency. Moreover, the steel sheet pile and the rigidity increasing shape steel material need not be separately driven into the ground, thereby eliminating the problem of the reduced efficiency in execution of construction works, unlike the invention described in the Patent document 1.
  • the width of the H-shaped steel member needs to be smaller than the web width of the steel sheet pile if the shape sheet material is disposed inside the recess section of the steel sheet pile, and accordingly, the size limitation is imposed on the H-shaped steel member.
  • the result of interposition of the steel material as the spacer is that the size limitation on the H-shaped steel member is relaxed.
  • FIG. 1 shows one embodiment of a composite steel sheet pile 1 of the present invention, with FIGS. 1 (a) and 1 (b) being a plan view and an elevation view respectively showing the same.
  • An H-shaped steel member 3 as a rigidity increasing steel material is disposed inside the web section of a hat-shaped steel sheet pile 2 as a steel sheet pile, and the upper end and the lower end of the H-shaped steel member are joined to the web section of the hat-shaped steel sheet pile 2.
  • Hat-shaped steel sheet piles 2 are adapted to be connected together by engagement between joints 4 and 5 provided at both ends of each hat-shaped steel sheet pile in the width direction thereof, the connection being made in such a manner that protrusions and recesses in a cross-section of the hat-shaped steel sheet piles face the same direction.
  • the lower end of the H-shaped steel member is secured to the hat-shaped steel sheet pile by welding 6, and the upper end thereof is joined to the hat-shaped steel sheet pile by bolted connection.
  • the bolted connection of the upper end thereof is made in such a manner that at least either a bolt hole of the hat-shaped steel sheet pile 2 or that of the H-shaped steel member 3 is given in the form of a bolt hole 7 having a size greater than a bolt hole having a size appropriate for the bolt diameter in order to permit the H-shaped steel member and the hat-shaped steel sheet pile to be displaced from each other in the top-bottom direction in FIG. 1(b) .
  • the hat-shaped steel sheet pile 2 and the H-shaped steel member 3 can be joined together in a construction site, and this allows the hat-shaped steel sheet pile and the H-shaped steel member having been transported separately to the site to be joined together in the site, followed by being driven into the ground in the integrated form.
  • FIG. 2 gives an explanation on deflection behaviors in a comparison between deflection behaviors in the case of a composite steel sheet pile in the prior art (see FIG. 2(a) ) and in the case of a composite steel sheet pile of the present invention (see FIG. 2(b) ).
  • a composite steel sheet pile 31 of the present invention as shown in FIG. 2(b) is adapted to permit a steel sheet pile 32 and a rigidity increasing steel material 33 to be longitudinally displaced from each other, so that the deflection behaviors of the steel sheet pile and the rigidity increasing steel material are allowed to almost coincide with each other as against an earth pressure or the like acting on the steel sheet pile 32-side of the composite steel sheet pile.
  • FIGS. 3 (a) and 3(b) show respectively modifications to the embodiment shown in FIG. 1 .
  • H-shaped steel members 3 as the rigidity increasing steel material are arranged discontinuously in the longitudinal direction of a steel sheet pile, in which case, the lower end of each H-shaped steel member 3 is secured by welding to the steel sheet pile, and the upper end thereof is joined to the steel sheet pile using a combination of a joining bolt and an elongate bolt hole 7 in order to permit the steel sheet pile 2 to be longitudinally displaced in the occurrence of flexural deformation caused by an earth pressure or the like.
  • an H-shaped steel member 3 as the rigidity increasing steel material is joined to a steel sheet pile 2 in both the upper end and the lower end plus the middle of the H-shaped steel member, in which case, the joined part of the middle thereof is secured to the steel sheet pile using a bolt corresponding to a common-sized bolt hole 8, and the joined part of each of the upper end and the lower end thereof is given in the form a bolt hole 7 having a size greater than a bolt hole having a size appropriate for the bolt diameter in order to permit the H-shaped steel member and the steel sheet pile to be displaced from each other in the top-bottom direction.
  • FIG. 4 shows one embodiment of a steel sheet pile wall of the present invention, in which case, a steel sheet pile wall A is constructed by the manner in which the composite steel sheet piles 1 of the embodiment shown in FIG. 1 , for instance, are successively connected together through joints provided at both ends of each hat-shaped steel sheet pile 2 in the width direction thereof, while being driven into the ground.
  • FIG. 5 shows another embodiment of the steel sheet pile wall of the present invention, in which case, there is shown a steel sheet pile wall which is constructed in such a manner that the usual type of hat-shaped steel sheet pile 2 itself is partly combined with the composite steel sheet piles, instead of being constructed using only the composite steel sheet piles like the steel sheet pile wall A shown in FIG. 4 .
  • the steel sheet pile wall is constructed on condition that a high earth pressure acts on the hat-shaped steel sheet pile 2-side thereof.
  • FIG. 6 shows another embodiment of the composite steel sheet pile 1 of the present invention, with FIGS. 6(a), 6(b) and 6(c) being a plan view and an elevation view respectively showing the same and an elevation view of a modification thereto.
  • An H-shaped steel member 3 as the rigidity increasing steel material is disposed inside the web section of a hat-shaped steel sheet pile 2 as the steel sheet pile, and the flange section on one side of the H-shaped steel member 3 is joined to the web section of the hat-shaped steel sheet pile 2 by tension-type bolted connection using longitudinally predeterminedly spaced bolts 9.
  • Hat-shaped steel sheet piles 2 are adapted to be connected together by engagement between joints 4 and 5 provided at both ends of each hat-shaped steel sheet pile in the width direction thereof, the connection beingmade in such a manner that protrusions and recesses in a cross-section of the hat-shaped steel sheet piles face the same direction.
  • a bolt hole of the hat-shaped steel sheet pile 2 or that of the H-shaped steel member 3 is given in the form of a bolt hole 7 having a size greater than a bolt hole having a size appropriate for the bolt diameter in order to permit the hat-shaped steel sheet pile and the H-shaped steel member to be displaced from each other in the top-bottom direction in FIGS. 6 (b) and 6(c) .
  • the hat-shaped steel sheet pile 2 and the H-shaped steel member 3 can be joined together in a construction site, and this allows the hat-shaped steel sheet pile and the H-shaped steel member having been transported separately to the site can be joined together in the site, followed by being driven into the ground in the integrated form.
  • the H-shaped steel member 3 as the rigidity increasing steel material extends continuously in the longitudinal direction of the steel sheet pile 2
  • the modification shown in FIG. 6(c) is such that more than one H-shaped steel member 3 is arranged discontinuously in the longitudinal direction of the steel sheet pile 2, and the flange section of each H-shaped steel member 3 is adapted to be joined by tension-type bolted connection using the predeterminedly spaced bolts 9.
  • FIG. 7 shows a relation between the steel sheet pile wall using the composite steel sheet pile of the present invention and an earth pressure.
  • the composite steel sheet pile can be expressed as shown in FIG. 8 (b) by assuming that it is divided into an upper section and a lower section when the H-shaped steel member 3-side thereof receives an earth pressure as shown in FIG. 8(a) .
  • connection force ⁇ is used for the right-hand side of the expression (1).
  • a composite steel sheet pile which comprises a hat-shaped steel sheet pile 900 (see Internet ⁇ URL: http:// www./mlit. go.jp/kisha/kisha06/13/131016_.html > [Circumstances of Enforcement on "Structural Reform of Public Undertaking Cost” by Ministry of Land, Infrastructure, Transport and Tourism in 2005], [referenced on March 17, 2009], for instance) which is of a large cross-section and small thickness structure with an effective width of 900 mm and provides higher executability of construction works and H-600 ⁇ 200 which is available as H-shaped steel members of small width type.
  • FIG. 9 shows a further embodiment of the steel sheet pile wall of FIG. 7(b) , in which case, there is shown a steel sheet pile wall A which is constructed in such a manner that the usual type of hat-shaped steel sheet pile 2 itself is partly combined with the composite steel sheet piles, instead of being constructed using only the composite steel sheet piles 1 like the steel sheet pile wall A as shown in FIG. 7(b) .
  • the steel sheet pile wall in the embodiment shown in FIG. 9 is also constructed on condition that a high earth pressure acts on the H-shaped steel member 3-side thereof.
  • FIG. 10 shows one embodiment of a composite steel sheet pile with a steel material interposed as a spacer 11, with FIGS. 10 (a) and 10(b) being a plan view and an elevation view respectively showing the same.
  • Hat-shaped steel sheet piles 2 as the steel sheet piles and/or H-shaped steel members 3 are mass-produced in the standardized forms.
  • the flange of each H-shaped steel member 3 having an appropriate cross-section in view of design will sometimes fail to be seated into the web section of the hat-shaped steel sheet pile 2 from the dimensional point of view.
  • FIG. 10 The embodiment shown in FIG. 10 is such that a hat-shaped steel sheet pile 900 (see Internet ⁇ URL: http://www.mlit. go.jp/kisha/kisha06/13/131016_.html>, [Circumstances of Enforcement on "Structural Reform of Public Undertaking Cost” by Ministry of Land, Infrastructure, transport and Tourism in 2005], [referenced on March 17, 2009], for instance) which is of a large cross-section and small thickness structure with an effective width of 900 mm and provides higher executability of construction works and H-700 ⁇ 300 which is available as H-shaped steel members of middle width type are joined together through a spacer 11 made of a steel sheet having a thickness of 20 mm.
  • the result of interposition of the spacer 11 is that the flange of the H-shaped steel member 3 can be seated into the web section of the hat-shaped steel sheet pile 2.
  • Hat-shaped steel sheet piles 2 are adapted to be connected together by engagement between joints 4 and 5 provided at both ends of each steel sheet pile in the width direction thereof, the connection being made in such a manner that protrusions and recesses in a cross-section of the steel sheet piles face the same direction.
  • the hat-shaped steel sheet pile 2, the spacer 11 and the H-shaped steel member 3 may be also secured together by bolted connection, welding or the like.
  • applying the structure that is to permit the steel sheet pile 2 and the H-shaped steel member 3 or the spacer 11 to be longitudinally displaced from each other may result in that the deflection behaviors of the steel sheet pile 2 and the H-shaped steel member 3 will almost coincide with each other, like an embodiment shown in FIG. 12 as described later.
  • FIG. 11 shows modifications of the spacer to the embodiment shown in FIG. 10 , with FIGS. 11 (a) and11 (b) being views respectively showing one modification where a steel material used for a spacer 12 has a square cross-section, and another modification where two channel-shaped cross-section steel materials are used as spacers 13.
  • FIG. 12 shows a still further embodiment of the composite steel sheet pile 1 of the present invention, with FIGS. 12 (a) and 12 (b) being a plan view and an elevation view respectively showing the same.
  • An H-shaped steel member 3 as the rigidity increasing steel material is disposed inside the web section of a hat-shaped steel sheet pile 2 as the steel sheet pile through a spacer 11 made of a steel sheet, and the upper end and the lower end of the H-shaped steel member are joined to the steel sheet pile.
  • the lower end of the H-shaped steel member is secured to the steel sheet pile by welding 6, and the upper end thereof is joined to the steel sheet pile by bolted connection.
  • the bolted connection of the upper end thereof is made in such a manner that at least either a bolt hole of the hat-shaped steel sheet pile 2 or that of the H-shaped steel member 3 is given in the form of a bolt hole 7 having a size greater than a bolt hole having a size appropriate for the bolt diameter in order to permit the hat-shaped steel sheet pile and the H-shaped steel member to be displaced from each other in the top-bottom direction in FIG. 12(b) .
  • the hat-shaped steel sheet pile 2, the H-shaped steel member 3 and the spacer 11 can be joined together in a construction site, and this allows the hat-shaped steel sheet pile, the H-shaped steel member and the spacer having been separately transported to the site to be joined together in the site, followed by being driven into the ground in the integrated form.
  • FIGS. 13(a) and 13(b) show respectively modifications to the embodiment shown in FIG. 12 .
  • the spacers 11 are arranged discontinuously in the longitudinal direction of a steel sheet pile, in which case, the lower end of each spacer 11 is secured to the steel sheet pile by welding, and the upper end thereof is joined to the steel sheet pile using a combination of a joining bolt and an elongate bolt hole 7 in order to permit the steel sheet pile 2 to be longitudinally displaced in the occurrence of flexural deformation caused by an earth pressure or the like.
  • an H-shaped steel member 3 as the rigidity increasing steel material as shown by chain double-dashed line is mounted to the spacers 11.
  • a spacer 11 and an H-shaped steel member 3 as the rigidity increasing steel material as shown by chain double-dashed line are joined to a steel sheet pile 2 in both the upper end and the lower end plus the middle of each of the spacer and the H-shaped steel member, in which case, the joined part of the middle of each of the spacer and the H-shape steel member is secured to the steel sheet pile using a bolt corresponding to a common-sized bolt hole 8, and the joined part of each of the upper end and the lower end thereof is given in the form of a bolt hole 7 having a size greater than a bolt hole having a size appropriate for the bolt diameter in order to permit the steel sheet pile and the H-shaped steel member and the spacer to be displaced from each other in the top-bottom direction.
  • FIG. 14 shows a still further embodiment of the steel sheet pile wall of the present invention, in which case, a steel sheet pile wall A is constructed by the manner in which the composite steel sheet piles 1 of the embodiment shown in FIG. 10 or 12 , for instance, are successively connected together through joints provided at both ends of each hat-shaped steel sheet pile 2 in the width direction thereof, while being driven into the ground.
  • FIG. 15 shows a yet further embodiment of the steel sheet pile wall of the present invention, in which case, there is shown a steel sheet pile wall which is constructed in such a manner that the usual type of hat-shaped steel sheet pile 2 itself is partly combined with the composite steel sheet piles, instead of being constructed using only the composite steel sheet piles like the steel sheet pile wall A as shown in FIG. 14 .
  • the steel sheet pile wall is constructed on condition that a high earth pressure acts on the hat-shaped steel sheet pile 2-side thereof.
  • FIG. 16 shows one embodiment of a composite steel sheet pile with a steel material interposed as a spacer in the case where a steel sheet pile and a shape steel material are joined together by tension-type bolted connection using more than one longitudinally spaced bolt, with FIGS. 16 (a) and 16 (b) are a plan view and an elevation view respectively showing the same.
  • Hat-shaped steel sheet piles 2 as the steel sheet piles and/or H-shaped steel members aremass-produced in the standardized forms.
  • the flange of the H-shaped steel member 3 having an appropriate cross-section in view of design will sometimes fail to be seated into the web section of the hat-shaped steel sheet pile 2 from the dimensional point of view.
  • the result of interposition of a steel sheet or the like as the spacer 11 as shown in FIG. 16 is that the flange of the H-shaped steel member 3 can be joined to the inside of the hat-shaped steel sheet pile 2 in state where it is seated thereto.
  • the embodiment in this case is the same as the above other embodiments in that the steel sheet pile 2 and the H-shaped steel member 3 are joined together by tension-type bolted connection using more than one longitudinally spaced bolt 9 in order that the deflection behaviors of the steel sheet pile 2 and the H-shaped steel member 3 may almost coincide with each other.
  • the composite steel sheet pile and the steel sheet pile wall of the present invention are characterized in that the composite steel sheet pile is such that the steel sheet pile and the rigidity increasing steel material are combined with each other as superposed beams.
  • this configuration allows the deflection behaviors of the steel sheet pile and the rigidity increasing steel material to almost coincide with each other for eliminating labor and cost required for welding, shape measurement, correction work, processing management or the like, and also allows the composite steel sheet pile and the steel sheet pile wall to be stored and transported with high efficiency.

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Claims (10)

  1. Palplanche en acier composite (1) comprenant une palplanche en acier et un matériau en acier de forme augmentant la rigidité s'étendant dans la direction longitudinale de la palplanche en acier, ledit matériau en acier de forme étant disposé d'un côté de ladite palplanche, caractérisée en ce que ledit matériau en acier de forme est assemblé à ladite palplanche en acier dans plus d'un point d'assemblage dudit matériau en acier de forme dans sa direction longitudinale de sorte qu'au moins, sur l'un de ses points d'assemblage, on applique une structure qui est prévue pour permettre à ladite palplanche en acier et audit matériau en acier de forme d'être longitudinalement déplacés l'un par rapport à l'autre de sorte que les comportements de déviation de ladite palplanche et dudit matériau en acier de forme peuvent presque coïncider entre eux.
  2. Palplanche en acier composite (1) selon la revendication 1, dans laquelle ledit plus d'un point d'assemblage dudit matériau en acier de forme comprend deux extrémités dudit matériau en acier de forme dans sa direction longitudinale.
  3. Palplanche en acier composite (1) selon la revendication 1, dans laquelle ledit matériau en acier de forme comprend des éléments en acier en forme de H (3).
  4. Palplanche en acier composite (1) selon la revendication 1, dans laquelle ladite palplanche en acier et ledit matériau en acier de forme sont assemblés par un raccordement boulonné de type à tension en utilisant plus d'un boulon (9) espacé longitudinalement de sorte que les comportements de déviation de ladite palplanche en acier et dudit matériau en acier de forme peuvent presque coïncider entre eux.
  5. Palplanche en acier composite (1) selon la revendication 4, dans laquelle une force de traction x résultat de l'addition des forces de traction de plus d'un boulon (9) longitudinalement espacé dans des applications de raccordement boulonné de type à tension pour assembler ladite palplanche et ledit matériau en acier de forme satisfait le besoin donné par l'expression suivante (1) : X ≥ I − a • I 1 − a • I 2 • p / I 1 + I 2
    Figure imgb0013
     où I représente la largeur de ladite palplanche, a représente la largeur dudit matériau en acier de forme, I1 représente le moment d'inertie de surface de ladite palplanche, I2 représente le moment d'inertie de surface dudit matériau en acier de forme, et p représente une pression terrestre agissant du côté du matériau en acier de forme de la palplanche en acier composite.
  6. Palplanche en acier composite (1) selon la revendication 4, dans laquelle quant à la totalité ou à une partie de plus d'un point d'assemblage adapté pour assembler par un raccordement boulonné de type à tension, un trou de boulon (8) d'au moins l'un parmi ladite palplanche en acier et ledit matériau en acier de forme se présente sous la forme d'un trou de boulon (8) ayant une taille supérieure à un trou de boulon (8) ayant une taille appropriée pour le diamètre du boulon (9), ledit trou de boulon (8) ayant une structure qui est prévue pour permettre au boulon (9) adapté pour assembler ladite palplanche en acier et ledit matériau en acier de forme d'être déplacé dans la direction longitudinale de ladite palplanche en acier ou dudit matériau en acier de forme.
  7. Palplanche en acier composite (1) selon la revendication 1, dans laquelle ladite palplanche en acier comprend des palplanches en acier (2) en forme de chapeau raccordées ensemble par la mise en prise de joints (4, 5) prévus au niveau des deux extrémités de chaque palplanche dans le sens de leur largeur, le raccordement étant réalisé de sorte que des saillies et des évidements dans une section transversale perpendiculaire à la direction longitudinale sont orientés dans la même direction.
  8. Palplanche en acier composite (1) selon la revendication 1, dans laquelle ladite palplanche et ledit matériau en acier de forme sont assemblés par le biais d'un matériau en acier en tant que dispositif d'espacement (11, 12, 13) intercalé entre ladite palplanche en acier et ledit matériau en acier de forme.
  9. Paroi de palplanche en acier (A) comprenant plus d'une palplanche en acier, les palplanches étant raccordées ensemble par le biais de joints (4, 5) prévus au niveau des deux extrémités de chaque palplanche, dans laquelle lesdites palplanches utilisent, au moins en partie, la palplanche en acier composite (1) selon la revendication 1.
  10. Paroi de palplanche en acier (A) selon la revendication 9, dans laquelle lesdites palplanches en acier qui forment lesdites palplanches en acier composite sont agencées du côté de réception de pression terrestre ou de son côté de développement de pression terrestre élevée.
EP10767049.9A 2009-04-21 2010-04-20 Palplanche en acier composite et rideau de palplanche en acier utilisant la palplanche en acier composite Not-in-force EP2423389B1 (fr)

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JP2009102624A JP4760948B2 (ja) 2009-04-21 2009-04-21 組合せ鋼矢板および該組合せ鋼矢板を用いた鋼矢板壁
JP2009102625A JP4798251B2 (ja) 2009-04-21 2009-04-21 組合せ鋼矢板および該組合せ鋼矢板を用いた鋼矢板壁
JP2009102623A JP4666088B2 (ja) 2009-04-21 2009-04-21 組合せ鋼矢板および該組合せ鋼矢板を用いた鋼矢板壁
PCT/JP2010/056973 WO2010122992A1 (fr) 2009-04-21 2010-04-20 Palplanche en acier composite et rideau de palplanche en acier utilisant la palplanche en acier composite

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WO2013008915A1 (fr) 2011-07-14 2013-01-17 新日鐵住金株式会社 Palfeuille composite, mur souterrain continu et procédé de désassemblage de palfeuille composite
TWI494486B (zh) * 2011-07-14 2015-08-01 Nippon Steel & Sumitomo Metal Corp 組合鋼板樁、地下連續壁、及組合鋼板樁之再利用方法
JP5939622B2 (ja) * 2012-03-23 2016-06-22 株式会社技研製作所 土留壁
CN103114596A (zh) * 2013-02-05 2013-05-22 东南大学 一种新型hsw工桩法基坑支护结构及其施工方法
JP6536323B2 (ja) * 2015-09-30 2019-07-03 日本製鉄株式会社 鋼矢板の縦継構造及び鋼矢板壁
CN107842009A (zh) * 2017-12-18 2018-03-27 兰州理工大学 岩土模型试验用装配式钢构件模型箱及施工方法
CN108729450A (zh) * 2018-05-30 2018-11-02 中水电第十工程局（郑州）有限公司 一种管道工程钢板桩支护方法
RU193508U1 (ru) * 2019-05-22 2019-10-31 Алексей Леонидович Калинин Элемент шпунтовой стенки
WO2020236031A1 (fr) * 2019-05-22 2020-11-26 Kalinin Aleksej Leonidovich Elément de mur-rideau
CN112609705A (zh) * 2020-12-09 2021-04-06 中国化学工程第六建设有限公司 适用于浅水软土基坑的钢板桩支护体系及支护方法

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CN102414370B (zh) 2014-04-02
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HK1164392A1 (en) 2012-09-21
SG175214A1 (en) 2011-11-28

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