FR2552462A1 - Injection tube for soil strengthening products - Google Patents
Injection tube for soil strengthening products Download PDFInfo
- Publication number
- FR2552462A1 FR2552462A1 FR8315340A FR8315340A FR2552462A1 FR 2552462 A1 FR2552462 A1 FR 2552462A1 FR 8315340 A FR8315340 A FR 8315340A FR 8315340 A FR8315340 A FR 8315340A FR 2552462 A1 FR2552462 A1 FR 2552462A1
- Authority
- FR
- France
- Prior art keywords
- tube
- injection tube
- injection
- valve
- thinning
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
La présente invention concerne les appareils permettant l'injection de ciment, résines, liquides, etc... dans les sols meubles. The present invention relates to devices for the injection of cement, resins, liquids, etc. in loose soil.
Les dispositifs connus, de ce genre, sont généralement constitués de deux pièces
i - Un tube percé transversalement permettant l'alimentation en ciment.Known devices of this kind generally consist of two parts
i - A tube pierced transversely allowing the cement supply.
2 - Une membrane tubulaire en caoutchouc au droit des trous, faisant office de clapet et appelée manchette. Elle permet de couler autour du tube une gangue de centrage, appelée coulis de gaine, qui a pour but de centrer le tube dans son logement. Pour cette raison, ce système est appelé tube à manchette. Les tubes sont : soit métalliques, soit en matière plastique, en longueurs de plusieurs mètres ou en éléments de 0.25 M, 0.33 M, 0.50 M. Ils comportent à chaque extrémité un système d'assemblage, et, entre les extrémités est glissée une manchette caoutchouc. 2 - A tubular rubber membrane in line with the holes, acting as a valve and called a cuff. It allows to pour around the tube a centering gangue, called sheath grout, which aims to center the tube in its housing. For this reason, this system is called a cuff tube. The tubes are: either metallic or plastic, in lengths of several meters or in elements of 0.25 M, 0.33 M, 0.50 M. They have an assembly system at each end, and between the ends is a cuff rubber.
Ce système a l'inconvénient de nécessiter, d'une part, un positionnement de la manchette devant les trous transversaux pour éviter le glissement de la manchette sur le tube, et, d'autre part, un stockage à l'abri de la lumière pour éviter le vieillissement du caoutchouc, ce qui n'est pas facilement réalisable sur un chantier. This system has the disadvantage of requiring, on the one hand, a positioning of the cuff in front of the transverse holes to avoid sliding of the cuff on the tube, and, on the other hand, storage protected from light to avoid rubber aging, which is not easily achievable on a construction site.
Le tube d'injection, selon l'invention, a l'avantage de supprimer ces inconvénients et d'en réduire sensiblement le coût. L'amélioration de celui-ci est principalement dûe à la suppression de la manchette caoutchouc et à son remplacement par une valve monobloc proven-ant de la matière dtUb
Celle-ci peut être obtenue de différentes façons, soit par moulage en même temps que le tube d'injection, soit par usinage ou par tout autre procédé, dans le cas de tubes extrudés.The injection tube according to the invention has the advantage of eliminating these drawbacks and of significantly reducing the cost thereof. The improvement in this is mainly due to the removal of the rubber cuff and its replacement by a one-piece valve from the dtUb material
This can be obtained in different ways, either by molding at the same time as the injection tube, or by machining or by any other method, in the case of extruded tubes.
De plus, le nombre de tubes d'injection, dans le cas de la présente invention, n'est plus lié au pas des manchettes. En effet, l'invention permet sur une longueur de tube comportant un seul système d'assemblage d'adapter plusieurs valves à un pas constant, donc de diviser par deux ou trois le nombre de pièces à assembler pour une même longueur. In addition, the number of injection tubes, in the case of the present invention, is no longer linked to the pitch of the cuffs. Indeed, the invention makes it possible, over a length of tube comprising a single assembly system, to adapt several valves to a constant pitch, therefore to divide by two or three the number of parts to be assembled for the same length.
Selon l'invention, la valve est un opercule venant directement de la masse du tube d'injection par amincissement de la paroi. Sous l'effet de la pression du liquide à l'intérieur du tube, l'opercule éclate. Le liquide dtin- jection perce le coulis de gaine, qui centre le tube dans le trou du sol, et remplit le sol au niveau de l'opercule. According to the invention, the valve is a cover coming directly from the mass of the injection tube by thinning of the wall. Under the effect of the pressure of the liquid inside the tube, the seal bursts. The injection liquid pierces the sheath slurry, which centers the tube in the hole in the ground, and fills the ground at the level of the seal.
Le dessin de la planche 1/1 est la vue en coupe du système d'injection en place dans le sol (6). Le tube d'injection est représenté dans sa version moulé sous pression. The drawing of plate 1/1 is the sectional view of the injection system in place in the ground (6). The injection tube is shown in its die-cast version.
Au centre de la tringle d'injection (8) qui coulisse dans le tube d'injection, circule le liquide à injecter. Le tube d'injection est maintenu en place par le coulis de gaine (9). In the center of the injection rod (8) which slides in the injection tube, circulates the liquid to be injected. The injection tube is held in place by the sheath grout (9).
Tel qu'il est représenté, le tube d'injection, objet du brevet, comprend à l'extrémité supérieure (4) du tube lisse (i) un filetage femelle. La partie centrale du tube comporte un ou plusieurs opercules (2) et (3) et l'extrémité inférieure (5) un filetage male permettant l'assemblage sur le tube suivant (10). As shown, the injection tube, subject of the patent, comprises at the upper end (4) of the smooth tube (i) a female thread. The central part of the tube has one or more lids (2) and (3) and the lower end (5) a male thread allowing assembly on the next tube (10).
Les extrémités (4) et (5) peuvent être éventuellement lisses pour être assemblées par collage ou par manchonnage. The ends (4) and (5) may optionally be smooth so as to be assembled by gluing or by sleeving.
La forme de l'opercule peut être variée : ronde, ovale, rectangulaire, triangulaire et autres, compte-tenu du liquide à passer au travers et de sa répartition dans le terrain.The shape of the cover can be varied: round, oval, rectangular, triangular and others, taking into account the liquid to pass through and its distribution in the ground.
Cet opercule est caractérisé par une épaisseur plus forte au centre que sur les bords, avec un amincissement (7) constant sur la périphérie. Cet amincissement peut être effectué soit à l'intérieur du tube, soit à l'exté- rieur, comme représenté sur le dessin. La surface de la section de l'amincissement déterminera l'effort, en fonction du matériau constituant le tube d'injection pour ouvrir la valve et laisser passer le liquide d'injection. This cover is characterized by a greater thickness in the center than on the edges, with a constant thinning (7) on the periphery. This thinning can be carried out either inside the tube or outside, as shown in the drawing. The area of the thinning section will determine the force, depending on the material constituting the injection tube to open the valve and let the injection liquid pass.
La présente invention peut être utilisée dans tous les cas où le traitement des terrains nécessite l'emploi du tube à manchette pour l'injection de produits de renforement. The present invention can be used in all cases where the treatment of soils requires the use of the cuff tube for the injection of reinforcing products.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315340A FR2552462A1 (en) | 1983-09-27 | 1983-09-27 | Injection tube for soil strengthening products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315340A FR2552462A1 (en) | 1983-09-27 | 1983-09-27 | Injection tube for soil strengthening products |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2552462A1 true FR2552462A1 (en) | 1985-03-29 |
Family
ID=9292579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8315340A Withdrawn FR2552462A1 (en) | 1983-09-27 | 1983-09-27 | Injection tube for soil strengthening products |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2552462A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174268A1 (en) * | 1984-08-13 | 1986-03-12 | GTE Gesellschaft für Technische Entwicklung AG | Injection tube for the application of injections for soil stabilisation |
CN104963352A (en) * | 2015-06-30 | 2015-10-07 | 上海建工二建集团有限公司 | Quick confined well breakage repair structure and method |
WO2016001941A1 (en) | 2014-06-30 | 2016-01-07 | Carsico S.R.L. | Process for treating contaminated subsoil |
-
1983
- 1983-09-27 FR FR8315340A patent/FR2552462A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174268A1 (en) * | 1984-08-13 | 1986-03-12 | GTE Gesellschaft für Technische Entwicklung AG | Injection tube for the application of injections for soil stabilisation |
WO2016001941A1 (en) | 2014-06-30 | 2016-01-07 | Carsico S.R.L. | Process for treating contaminated subsoil |
US10076777B2 (en) | 2014-06-30 | 2018-09-18 | Carsico S.R.L. | Process for treating contaminated subsoil |
CN104963352A (en) * | 2015-06-30 | 2015-10-07 | 上海建工二建集团有限公司 | Quick confined well breakage repair structure and method |
CN104963352B (en) * | 2015-06-30 | 2017-04-05 | 上海建工二建集团有限公司 | The damaged quick reparation structure of artesian well and method |
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ST | Notification of lapse |