Classifications

• • 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

• the present invention relates to a method for connecting a sheet pile to a beam, in particular with a view to forming a mixed retaining curtain.
• Mixed retaining curtains comprising metal beams as load-bearing elements and metal sheet piles as intermediate sections intended to retain the ground, have been known for a long time. They have the advantage of having very large resistance modules.
• HZ Combined Walls an integrated system for making mixed retaining curtains.
• This system is made up of special beams, called HZ beams, special "Z" shaped sheet piles, called ZH intermediate sheet piles, and connection profiles, called RH joints.
• the wings of the HZ beams have a profiled edge characterized by a rim of substantially triangular section projecting from the wing. These profiled edges are formed during the rolling of the HZ beams.
• ZH intermediate sheet piles do not have standard sheet pile locks, but each of the two wings has a profiled edge similar to the profiled edges of the wings of HZ beams.
• the RH connection is provided with two grooves, symmetrical with respect to each other, which widen from the outside towards the inside of the connection profile, so as to each define a chamber complementary to the profiled edges of the wings HZ beams and ZH sheet piles.
• the laminated edges of the HZ beams and ZH sheet piles ensure lateral locking of the flange edges in the grooves of the RH connector.
• the disadvantage of the integrated "HZ Combined Walls" system is that it requires the rolling of a special beam and sheet pile program. From an economic point of view, it would be more advantageous to be able to produce mixed retaining curtains with beams and sheet piles from the standard program.
• This half-sheet pile therefore comprises a first longitudinal edge provided with a standard sheet pile lock element and a second flat longitudinal edge, that is to say not profiled.
• This second longitudinal edge is deformed when cold, so as to give it a corrugated longitudinal profile, similar to that of the beam.
• a connection profile is used provided with two symmetrical grooves with respect to each other. These grooves flare from the outside towards the inside of the connection profile, so as to form chambers in which the bumps on the edge of the beam flange and on the edge of the half-sheet pile provide - by an effect corner - the lateral blocking of these edges.
• this connection system also designated by the term "crimping" was already described in 1934 in patent DE 593825 for the assembly of sheet piles without locks.
• U-shaped connecting half-palpianches also leads to an unfavorable arrangement of the sheet pile joints in the intermediate curtain and also has a negative influence on the resistance modulus of this curtain.
• the sheet piles used to make homogeneous retaining curtains that is to say composed exclusively of sheet piles, are fitted with optimized locking elements in particular to slide well one inside the other during threshing, to ensure a hooking sufficient, even in the case of unavoidable torsional forces, to engage so as to transmit thrust, traction and shear forces in the curtain and to ensure a suitable seal.
• the best known standard sheet pile locks are "LARSSEN” type locks. These "LARSSEN” type locks are formed by the engagement of two similar lock elements, which perform a reciprocal hooking with a high overlap.
• a problem underlying the present invention is finally to propose an economical method for reliably connecting a standard sheet pile provided with a standard lock element, such as for example a lock element of the "LARSSEN" type, to a wing of '' a standard beam. This problem is solved by the method according to claim 1.
• connection produced by the present method presents in particular a much lower risk of rupture when the retaining curtain is exposed to corrosion and / or to difficult threshing conditions. .
• fitting produced by the present process has many advantages, for example:
• this method is used to connect a standard sheet pile fitted with a standard locking element to a wing of a joist in a mixed retaining curtain, the following steps are carried out, after sliding said connection profile on said corrugated edge: - the connection profile is blocked in the longitudinal direction relative to the wing of the beam,
• the edge of the beam a corrugated profile comprising a succession of bumps which are all projecting with respect to the same face of the wing. It is however more advantageous to give the edge of the beam a succession of bumps alternately projecting from the two faces of the wing.
• the groove of the connection profile which receives these bumps can then have a plane of symmetry, so that the connection profile can be turned over to be mounted in two different positions on the corrugated edge, which increases the flexibility of use of the profile. fitting.
• the standard locking element of the connecting profile and the standard locking element of the sheet pile advantageously both comprise a hook-shaped element, as well as a stop surface arranged opposite the hook.
• a preferred connection profile further comprises a body which has a cross section in the shape of a "C” and which defines the groove making it possible to receive the corrugated edge of the wing of the beam.
• the hook-shaped element is arranged on this body in the shape of a "C” so that the back of the "C” defines said abutment surface.
• the sheet piles used to form the mixed retaining curtain are "Z” shaped sheet piles fitted with "LARSSEN” type lock elements.
• LPSSEN Lignin-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-Sene-SSEN" type lock elements.
• Figures 2A and 2B are cross sections through the lock elements of Figures 1A and 1B, engaged in a preferred embodiment of a connection profile;
• FIG. 3 is a cross section through a preferred embodiment of a connecting profile connected to a beam wing
• Figure 4 is a cross section through a sector of a mixed retaining curtain, produced using the connection profile of Figure
• This curved edge 18, called for simplicity "hook 18” faces an abutment surface 20 and defines therewith an opening in the form of a slot of width "a” which gives access to an interior chamber 21 of the hook 18 It will be noted that this width "a” is substantially smaller than the width "b" of the head of the hook 18, most often called a bead, which is received, when two lock elements are engaged, in the interior chamber 21.
• the hooks 18 of the lock elements of Figures 1A and 1B have a substantially identical geometry. However, in the case of Figure 1A, the abutment surface 20 is formed by a folding 22 of the wing 10, while in the case of FIG. 1B, the abutment surface 20 is formed by a bead 24 on the wing 14.
• the lock element 16 will be called “folded” lock element, and lock element 12 will be called “straight” lock element.
• connection profile 30 designed to connect the sheet pile wing 10, 14 to a beam wing end 31 is shown in Figure 3 (the beam wing end 31 is drawn in broken lines ).
• It is a hybrid connection profile 30 comprising on one side a body 32 having a section substantially in the shape of a "C” and on the other side a standard lock element of the "LARSSEN" type 34.
• the body 32 is designed to be slid longitudinally on the edge 39 of the end of the beam wing 31. This edge 39 has been cold deformed so as to have a corrugated longitudinal profile characterized by a succession of bumps 40, 42, alternately oriented with one side and the other of the wing.
• the body 32 defines a groove 36 (see also FIG.
• Figure 4 shows a sector of a mixed retaining curtain produced using the connection profile of Figure 3.
• the sector comprises two beams 50, 52 as load-bearing profiles and two sheet piles in the shape of a "Z" 54, 56 as intermediate profiles.
• the beam 50 carries a connection profile 30- j according to Figure 3, the hook 18 'of which is oriented with its opening towards the outside.
• the beam 52 carries a connection profile 30 2 strictly identical to the connection profile 30-).
• the connection profile 30 2 has however been rotated 180 ° around its longitudinal axis, so that the hook 18 'is oriented with its opening inwards.
• the lock element 34 of the connection profile 3 ⁇ ! is engaged in a right lock element 16 of the sheet pile 54 (that is to say a lock element of the type of Figure 1B).
• connection profile 30 is slid over this corrugated edge.
• This blocking can for example be achieved by welding.
• the beam 50 thus prepared can now be driven into the ground.
• the locking element of the connecting profile protruding from the ground the locking element 16 of the sheet pile 54 is engaged and the sheet pile is driven into the ground (for example by beating or by vibration).

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Composite Materials (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Paleontology (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Bulkheads Adapted To Foundation Construction (AREA)
• Pivots And Pivotal Connections (AREA)
• Forging (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 1996
  • 1996-04-17 LU LU88743A patent/LU88743A1/fr unknown
• 1997
  • 1997-03-21 WO PCT/EP1997/001439 patent/WO1997039193A1/fr not_active Ceased
  • 1997-03-21 DE DE69705941T patent/DE69705941T2/de not_active Expired - Lifetime
  • 1997-03-21 AT AT97915410T patent/ATE203788T1/de not_active IP Right Cessation
  • 1997-03-21 EP EP97915410A patent/EP0894167B1/de not_active Expired - Lifetime
• 1998
  • 1998-10-15 US US09/172,826 patent/US6092346A/en not_active Expired - Lifetime

Non-Patent Citations (1)

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