FR2732375A1 - Repairing and realigning device for damaged upper sections of sheet piling along keys, riverbanks or platforms - Google Patents

Abstract

The device has prefabricated sections (B) which may also be made on site, which rest on the on the external edge of the upper sections of the sheet piling. These lower sections (B) form a base for self supporting sections (C) which form a vertical wall supporting the upper section of the embankment. The force resulting from the pressure exerted by the sections (B) on the external face of the sheet piling is taken up by existing or new anchor points. The prefabricated sections (B) support the sections (C) so that they can be levelled and aligned. If the B component does not have a horizontal flange an adjustment zone (b) allows the self supporting sections to be aligned.

Description

 The present invention relates to process3, works to allow the redevelopment and correction of the alignment of the banks, banks, quays or platforms arranged by a sheet pile wall while strengthening and straightening the top part of the last.

 Quays, banks, banks in terrestrial or aquatic environments are commonly made of sheet pile walls.

 Over time, the upper part of these sheet piling tends to corrode, move or even collapse.

 In this type of situation, the current practice consists in reinforcing the curtain by adding a second curtain of reinforcing sheet piles, or outright replacing the sheet piles of the initial curtain.

 The present invention has the advantage of not destabilizing the upstream part of the embankments by removing the support sheet piles, or reducing the size by juxtaposing a second curtain.

 The objective of the present solution is to reinforce the existing sheet pile curtain with elements B which, by taking up the previous anchors or by creating them, will contribute to straightening the top part of the above-mentioned curtain and which may possibly serve as a platform support for other C elements.

These latter self-supporting or freestanding elements C serve to reconstruct a smooth, uniform, homogeneous and aesthetic layout of the visible upper part of the bank, the shore or the quay.

 A structure according to the invention for reinforcing and straightening the upper part of a sheet pile wall while allowing a redevelopment and an aesthetic realignment of the banks is composed of a row of elements manufactured in place or prefabricated (in reinforced concrete, in rot-proof wood or not, metal or other alloy, or any other material ...), which are used to straighten the top part of the sheet pile wall by exerting pressure on the external face of the upper part of the sheet pile, effort which is taken up either by the previous anchors of the curtain, or by the creation of new attachment points by any method whatsoever.

 FIG. 1 represents a perspective view of a work of art (quay wall, new or bank, etc.) which comprises a sheet pile curtain A, separating the quay from the water.

 It should be noted that instead of water, the sheet pile curtain can very well demarcate two land parts of different levels.

A structure according to the present invention requires earthwork behind the sheet pile wall so as to provide an adjustment zone b visible on the section
II Figures 2 and 3. This area b, in the case of Figure 2, serves as a support area for the components B. In the case of Figure 3, this area b directly serves as support for the components C.

 Element B is put in place after cutting the sheet pile of the curtain and sectioning of the anchor possibly existing on the length corresponding to the above-mentioned element B. Then element B is put under pressure on the external face of the upper part of the curtain sheet piling, the effort being taken up either by the tie of the existing anchor, or by the creation of a new attachment point (anchorage or any other process ...). It should be noted that the elements B must not press on the head part of the curtain so as to facilitate any movement during the tensioning and hanging of these elements B.

 For the operation of capping the sheet piles, it is advisable to proceed gradually and to section the existing anchors as the work progresses, ensuring that the curtain is pressurized and that the B elements are properly attached. to avoid any risk of the curtain sagging.

 The return part of the elements B in FIG. 2, or failing this the adjustment zone b of FIG. 3 serves as a positioning and support zone for the constituent elements C which are aligned and placed so as to form a harmonious and continuous curve.

 These elements C, constituting the final layout of the quay, the shore or the bank, are self-supporting or freestanding and serve as a vertical wall for the upper embankment upstream of the sheet pile wall.

Figures 1, 2 and 3 represent a symbolization of the constituent elements of the present solution without there being any limitation of form (L, T, I, beam ...), or of nature (reinforced concrete poured in place or prefabricated, wood, metal or other alloy, or any other material ...)
The device according to the present invention is applicable to the field of public works and is intended more particularly for the rectification and realignment of the layout of the quays, banks or banks constituted by a sheet pile wall limiting two terrestrial environments of different level, or a medium terrestrial and an aquatic environment.

Claims (4)

 - CLAIMS  1. Device for the redevelopment and the rectification of the layout of quays, banks, nves or platforms delimited by a sheet pile wall requiring a reinforcement and a straightening of its top part, characterized by the fact that a composite work is constructed of elements manufactured in place or prefabricated B coming to bear on the external face of the upper part of the curtain, and by the constituent elements C, freestanding or self-supporting, vertical wall of the upper part of the embankment upstream of the curtain.  2. Device according to claim 1, characterized in that the forces, due to the pressure exerted by the elements B on the external face of the upper part of the curtain, are taken up by the existing anchors or by anchor points at create.  3. Device according to claims 1 and 2, characterized in that the elements B serve as an adjustment and alignment support for the elements C, freestanding or self-supporting.  4. Device according to claims 1 and 2, characterized in that in the absence of a return to the elements B, an adjustment zone b serves as an adjustment support and alignments to the elements C, freestanding or self-supporting.