FR2631051A1 - INJECTION AND LUBRICATION HOP FOR TILTING PROFILES, ESPECIALLY FOR SEALED WALLS - Google Patents

Abstract

The present invention relates to an injection and lubrication shoe for driving profiles, in particular for watertight walls. Shoe characterized in that it is attached to the leading end of the section 1, in that it is connected to the end of the hydraulic binder distribution pipe 2 and in that it is provided with orifices 3 for distributing said hydraulic binder on all sides of the profile 1.

Description

Injection and lubrication shoe for threshing profiles; in

  The present invention relates to the field of

  the building and public works industry, particularly

  the construction of waterproofing walls and / or

  ment, and relates to an injection and lubrication shoe for threshing profiles, in particular

for waterproof walls.

  Currently, the realization of waterproof walls

  is carried out by threshing a section provided with

  section of a wing and its soul a supply pipe

  a hydraulic binder in the form of cement or a

  lange of cement and bentonite or sand. These benefits

  are generally equipped, at their lower part, with a sharpening of their leading edge penetrating into the ground, in the form of an oblique cut of the wings and a

  grinding at an angle of the edge of the soul.

  The existing profiles allow, under working conditions in soft ground, to obtain satisfactory results, that is to say a possibility of

  threshing of relatively long lengths

  you, but quickly lose their effectiveness in case of

  work in harder terrain, including rocky terrain.

  Indeed, in the latter case, the profiles, which are generally made of a relatively low hardness steel, tend to wear quickly, both in their leading face and in their portion extending

after this last.

  This wear is due, on the one hand, to the friction of the profiles with the layers they pass through and,

  on the other hand, poor lubrication of their ex-

  tremité attack by the hydraulic binder injected by means of the pipe. This bad lubrication is

  due, in particular, to the fact that the binder coming out of the

  duite diffuse with difficulty on all the correspon-

  of the profile, the other side of the profile

subject to no lubrication.

  The present invention aims to overcome these disadvantages.

  Its purpose is, in effect, an injection hoof

  and lubrication for threshing profiles, in particular for waterproof walls, characterized in that it is attached to the leading end of the profile, in that

  that it is connected to the end of the

  hydraulic binder and in that it is provided with dispensing orifices of said hydraulic binder on

all the faces of the profile.

  The invention will be better understood thanks to the

  described below, which relates to a method of

  preferred embodiment, given by way of non-limiting example, and explained with reference to the appended schematic drawing, in which: FIG. 1 is a front elevational view of the end of a profile equipped with a shoe according to the invention and FIG. 2 is a side elevational view

according to Figure 1.

  According to the invention, and as the

  By way of example, FIGS. 1 and 2 of the accompanying drawings, the injection and lubrication shoe for threshing profiles, in particular for watertight walls, is attached to the leading end of the profile 1 and is connected to the end of the hydraulic binder dispensing pipe 2. This shoe is, moreover, provided with orifices 3 for dispensing said hydraulic binder on

all the faces of the profile 1.

  The shoe according to the invention is advantageously

  consisting of three steel plates 4, high hardness, welded together and mounted on the web of the section 1, by welding, delimiting at the bottom of the latter a space 5, connected to the orifice the outlet of the hydraulic binder dispensing pipe 2, the intermediate plate being offset relative to the two outer plates so as to delimit said space, said external plates being provided, at regular intervals, with openings 3 for the exit of the hydraulic binder, and by assemblies of

  end steel plates 6, also of high hardness

  connected to the steel plates 4, the inner plates of these assemblies 6 resting on the ends of the flanges of the profile 1 and the outer plates clasping

  said ends, an outlet orifice 3 for the binder

  hydraulics of the outer plates of the assemblies 6 being connected to the space 5 delimited by the plates 4 and the plates forming the assemblies 6 being cut into

  point in the direction of the attacking face.

  According to a feature of the invention

  tion, the connection between the outer plates 4 and

  the web of the section 1 is completed by pins 7

  pouring said core and said plates 4 and welded to

these last.

  It is thus possible, in accordance with the invention

  tion, to make an element intended to equip. ex-

  threshing profiles for a good

  nation in soils of any consistency, as well as a uniform distribution of the hydraulic binder over the entire periphery of the profile, so that is achieved

  lubrication of the shoe and the profile.

  According to another characteristic of the invention, the hydraulic binder dispensing orifices 3,

  in the direction of the web of the profile 1, are advantageous

  made in the form of cut-outs 8 of the central steel plate 4, the ends of which protrude

  lower edge of the outer plates 4.

  In order to improve the wear resistance by

  abrasion of the hoof, the plates 4 and 6 are advantageously

  provided at regular intervals with shielding cupolas 9 made by stellitization, a stellitus also being made around the outlet orifices 3 of the

hydraulic binder.

  The plates 4 and 6 are advantageously made

  steel with a Brinell hardness of 500 and the shield cupolas advantageously

  Brinell hardness between 600 and 660.

  Thanks to the invention, it is possible to improve

  significantly increase the capabilities of

  ge, especially for the realization of waterproof walls.

  This improvement is made possible, in particular, on the one hand, because of the very high hardness of the shoe placed at the end of said profiles, and, on the other hand, because

  uniform distribution of the hydraulic binder on all

  the periphery of the shoe and thus of the profile 1,

  lubrication of the latter and therefore a better

  their penetration into the ground and less wear.

  Moreover, because of the increase thus obtained

  bare profile capabilities, threshing performance

  leaktight walls or the like is considerably increased

  mented. Of course, the invention is not limited to

  embodiment described and shown in the drawing

  nexed. Modifications remain possible, especially from the point of view of the constitution of the various elements or by substitution of equivalent techniques, without leaving

  for all that the field of protection of the invention.

Claims (6)

  1. Injection and lubrication shoe for threshing profiles, in particular for waterproof walls,   characterized in that it is reported at the end of   of the profile (1), in that it is connected to the   tremity of the binder distribution line (2)   hydraulic system and that it is provided with orifices (3)   tribution said hydraulic binder on all sides of the profile (1).   2. Shoe according to claim 1, characterized   risé in that it is advantageously constituted by three steel plates (4), of high hardness, assembled together by welding and mounted on the web of the profile (1), by welding, delimiting at the bottom of the latter a space (5) connected to the outlet orifice of the hydraulic binder dispensing pipe (2), the intermediate plate being offset relative to the two outer plates so as to delimit said space,   said outer plates being provided, at intervals   the regular ones, orifices (3) of exit of the hydraulic binder   lique, and by assembling steel plates of ex-   tremity (6), also of high hardness, connected to   steel plates (4), the internal plates of these assemblies   (6) resting on the ends of the wings of the   spun (1) and the outer plates enclosing the said   ends, an outlet (3) for the exit of the hydraulic binder   that external plates of the assemblies (6) being connected   to the space (5) delimited by the plates (4) and the   forming the assemblies (6) being cut into   in the direction of the attacking face.   3. Shoe according to claim 2, characterized   rised in that the connection between the outer plates   (4) and the web of the profile (1) is completed by bro-   ches (7) passing through said core and said plates (4) and soldered to them.   4. Shoe, according to any of the claims   -cations 1 and 2, characterized in that the orifices (3)   hydraulic binder dispensers, provided for in   the core of the profile (1) are advantageously   in the form of cut-outs (8) of the steel plate   (4), the ends of which extend beyond the inner edge   the outer plates (4).   5. Shoe according to claim 2, characterized   in that the plates (4 and 6) are advantageously   provided at regular intervals with shields of   dage (9) made by stelliting, a stelliting being also performed around the outlets (3) of the hydraulic binder.   6. Shoe according to claim 2, characterized   in that the plates (4 and 6) are advantageously made of a steel having a Brinell hardness of   500 and the armor cupolas have advantageous   Brinell hardness between 600 and 660.