EP0690942B2 - Procede permettant de rendre des massifs de terre etanches et dispositif de mise en oeuvre dudit procede - Google Patents

Procede permettant de rendre des massifs de terre etanches et dispositif de mise en oeuvre dudit procede Download PDF

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Publication number
EP0690942B2
EP0690942B2 EP94915557A EP94915557A EP0690942B2 EP 0690942 B2 EP0690942 B2 EP 0690942B2 EP 94915557 A EP94915557 A EP 94915557A EP 94915557 A EP94915557 A EP 94915557A EP 0690942 B2 EP0690942 B2 EP 0690942B2
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EP
European Patent Office
Prior art keywords
ground
sealant
bore
injected
bores
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.)
Expired - Lifetime
Application number
EP94915557A
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German (de)
English (en)
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EP0690942B1 (fr
EP0690942A1 (fr
Inventor
Klaus Kleiser
Hans-Joachim Bayer
Jörg GÄNGER
Klaus-Dieter Bilkenroth
Ortwin Caldonazzi
Herbert Baier
Manfred Heilmann
Hans-Jürgen KRETZSCHMAR
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.)
FlowTex Technologie GmbH and Co KG
Original Assignee
Flowtex Technologie Import Von Kabelverlegemaschinen GmbH
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Publication date
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Application filed by Flowtex Technologie Import Von Kabelverlegemaschinen GmbH filed Critical Flowtex Technologie Import Von Kabelverlegemaschinen GmbH
Priority claimed from PCT/EP1994/001352 external-priority patent/WO1994025688A1/fr
Publication of EP0690942A1 publication Critical patent/EP0690942A1/fr
Publication of EP0690942B1 publication Critical patent/EP0690942B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/006—Sealing of existing landfills, e.g. using mining techniques

Definitions

  • the invention relates to a method for sealing of natural or artificially poured soil bodies against an existing or potential gaseous, liquid, radiating and / or solid source of contamination, for example in the case of contaminated sites (old deposits, Old locations etc.). Landfills, pipelines or the like, but also construction pits, using of liquid, viscous and fine-particle solid Sealants or eluates.
  • DE-A 3 407 382 describes a subsequent method underground sealing, preferably from landfills, known by the work pipes of one Area outside of a landfill body below the landfill body are introduced without this the landfill body must be pierced.
  • This Working pipes are created from a previously vertical Shaft in a mining process below the landfill. From these working pipes with a special device the sealant is made injected into the floor area. With this procedure a technically very high effort is necessary and the mining operation to install the work pipes justifiable for special cases.
  • DE-A 34 39 858 discloses that of two vertical, outside the ground mass to be enclosed lying protected diaphragm walls a continuous waterproofing sole by driving underneath the soil mass to be enclosed using a Cutting and injection device manufactured and with the vertical diaphragm walls tightly connected becomes.
  • the vertical, supported diaphragm walls in turn require one high technical effort and are very expensive.
  • EP-A-0 317 369 describes a method according to the preamble of claim 1 known.
  • the process is an electrokinetic Procedure in which the appropriate injection Sealants, such as asphalt or the like, with a subsequently used as an injection tube takes place before injecting the sealant used to heat the surrounding floor area becomes.
  • the sealant is injected through perforation openings in the electrode with low pressure, so that an impregnation of the soil takes place.
  • the bores according to needs, including the contour of the contaminated area can be adapted, which means only a minimum amount of sealant for injection into the floor areas.
  • the number and Length of holes required to complete Include the source of contamination or those to be created This minimizes the excavation pit.
  • Contour focus is a safety distance the holes drilled to the contamination source and / or below the lows of the exploration wells of at least a few decimeters advantageous. in order to seal the To reach the source of contamination.
  • the method according to the invention is special simple and efficient if the sealant during a Longitudinal movement of the drill head in the bore continuously in the surrounding bottom area of the hole is injected. On the one hand, it can be done while driving the hole happen and / or when pulling back the drill head or a special one Clearing device towards the entrance opening.
  • the Sealant through nozzles or Inlet openings are injected into the floor area.
  • the sealant either in at least one side stream (additional front beams are possible) from the rotating drill string to create adjacent up to overcut cylindrical injection bodies or by at least two side and / or Front beams with non-rotating drill string for generation wing-like touching to overlapping Apply injection body or in other geometric Nozzle arrangement for resulting injection body arrangements to let out.
  • the goal is the overall creation, for example, tub-to basin-shaped, predominantly horizontal acting barrier layers.
  • barrier layers to the side and below the source of contamination create an absolutely secure seal of the To reach the source of contamination.
  • the holes overlapping soles at intervals parallel to each other by 20 ° - 160 ° to a first one Number of holes in the neighboring level at intervals driven parallel to each other under the source of contamination.
  • the barrier layer formed is very flexible against subsequent settling of the landfill body and enables flexible deformability the blocked position (s).
  • Montan wax emulsion formed barrier layer resistant to liquid and gaseous substances attacking the barrier in the Sikker, Capillary and groundwater.
  • barrier layer with a thickness of 30 to 60 cm is completely sufficient to to achieve a secure seal.
  • the high lubricity of the montan wax emulsion is particularly useful in the method according to the invention to wear, because the high lubricity also the allows good transport of other substances and z. B. causes very little wear on the nozzles and thus enables a long service life of the drill head.
  • sealants are injected in the case of the invention Process also below the Frac pressure depending on the permeability structure of the bore surrounding area possible. Through the low pressure injections is an optimal adaptation of the to be created Barrier layers on the ground conditions possible.
  • each barrier layer from different Build up sealants or injection agents.
  • a device for performing the method advantageously has nozzles on a fully steerable, remotely steerable drill head, which introduces the liquid Sealant in the floor area with sensitive or high pressure up to a distance of 2 to 3 m from allow from the drilling wall.
  • first one Pair of nozzles versus a second pair of nozzles by 5 ° to 180 ° with respect to the longitudinal axis of the drill head to be staggered.
  • Each of the pairs of nozzles comprises two opposing nozzles, each so directed are that each with the longitudinal axis of the drill head an angle of 30 ° to 90 ° is included. This allows the most varied of geometries the soil areas enriched with injectables create.
  • these nozzles from Compressed air outlets must be surrounded by a strong air pre-air parallel cut result. that enables one to shape any shaped jet of sealing, being a surface-like introduction of the sealant in the soil is preferred.
  • injections possible with the single (mono) to multi-phase process By arranging e.g. areal Gap-forming barrier layers below the source of contamination it is possible to separate the leachate into certain Directing directions.
  • cylindrical interlocking locking bodies makeable.
  • a landfill body 1 irregular in the underground part shaped As shown in Figs. 1 to 3, is a landfill body 1 irregular in the underground part shaped. A number of holes 2 will be outside of the landfill body from the surface with the well-known course-controlled drilling method contour-adjusted under the contamination body to the opposite side of the landfill body 1 advanced.
  • each hole 2 Starting from each hole 2 is the sealant a hole in the surrounding floor areas 2 injected, with the adjacent areas touch or overlap one hole each and thus a closed barrier layer 3 that conforms to the contours runs to the landfill body 1, form.
  • a second Barrier layer 4 under the first barrier layer 3 by here 90 ° rotated network of parallel at intervals bores 5 lying opposite one another and starting therefrom injected floor areas 4 is formed.
  • FIG. 3 An example is shown in FIG. 3. There are Holes 2 at intervals parallel to each other easily vertically offset from each other and each one Bore 2 outgoing barrier layers 4 overlap and form an angle of approximately 120 ° to each other.
  • 4 to 10 are further exemplary embodiments for the arrangement of with the invention Process bored holes schematically shown.
  • the bores run horizontally or also vertical. They are from the surface to any one you want Can be inserted to seal the floor.
  • first series of holes 2a one above the other at equal distances from each other brought into the ground.
  • a second one Row of holes 2b which are also one above the other and run at equal distances from each other, offset arranged to the first row of bores 2a.
  • the of the first row of bores 2a and the second Series of holes 2b outgoing injection areas intersect each other so that they are completely enclosed Form areas in which e.g. Further fully flow-controlled bores 10 are introduced, which serve as surveillance holes.
  • This Arrangement of the bores 2a, 2b creates a kind of double wall seal.
  • FIG. 6 Another exemplary schematic representation the arrangement of holes similar to the arrangements of bores according to FIG. 4 is in FIG. 6 shown.
  • the individual injection areas extend even further into the earth and form overlapping Injection areas or along the individual Injection planes extending bores 2a, 2b.
  • the arrangement of the bores 2a, 2b, 2c is a kind Triple wall formed.
  • a first series of bores 2a running parallel to each other in the Introduced soil.
  • Each starting from a hole extend two an angle of about 130 ° including injection areas.
  • Two on top of each other tapering injection areas of two neighboring Bores 2a cross each other, thereby forming one first sealing wall.
  • a row of the same structure of holes 2c is offset parallel to the first row of holes 2a arranged.
  • a third set of Bores 2b with associated injection areas mirror-inverted parallel to the second row arranged, which differs from the individual Bores 2b, 2c extending injection areas cross each other and have a diamond-shaped cross section Form the arrangement of the injection levels. In turn is a reliable seal of the floor guaranteed.
  • the easily fanning out education in the 4 to 7 shown injection areas result in that none when retracting the drill head Rotation runs and injection agent evenly through different nozzle arrangements in the surrounding Floor area is injected.
  • the schematic injection areas shown are in reality injection-enriched extending from the holes Barrier layers or levels. It understands by itself that the holes are horizontal as well can run vertically or at any inclination, as these introduced from the surface and under the The floor body to be sealed is completely flow-controlled be driven forward.
  • the drill head is cross-sections transverse to the bores 6 when retracting by a predetermined angle guided back and forth.
  • the drill head nozzles facing each other in pairs, the different penetration depths of the injection medium effect in the surrounding bore area.
  • two pairs are created in the area of a hole 2 of injection areas, with one pair having a larger one Radius and the perpendicular to it Pair has a smaller radius.
  • the holes 2 again run parallel to each other and are such spaced that the injection areas with larger Overlap radius. This will in turn achieved an effective seal, in which the absolute floor area next to the hole is tightly injected with injection agent.
  • the pivot angle is approximately 45 °, and in the example shown in Fig. 10, the Drill head swiveled back and forth by about 90 to 100 °.
  • FIG. 11 and 12 show a schematic representation the arrangement of the nozzles on the drill head 6, for the examples mentioned are advantageously used.
  • Fig. 11 is a front view showing the pair opposite nozzles with the injection spray angles 15 and 16.
  • Fig. 12 is a side view of the drill head 6 shown in FIG. 11, in which the front pair of nozzles are directed slightly forward and the rear pair of nozzles rotated by 90 ° is directed slightly backwards.
  • FIG. 13 shows a further area of application of the invention Procedure in which an excavation pit to protect against water ingress or pollution is sealed.
  • the holes 2 are here from a location outside the intended Excavation pit 25 brought in to the desired depth.
  • one of the previously arrangement of holes described by way of example and a sealing one by injecting the injection means Tub created. Since with the invention Different drilling methods from one location Boreholes 2 can be advanced Sealing a construction pit shown schematically 25 only a change of location of the drilling rig is necessary. Drilling will start from a first location 2 driven under the intended construction pit 25 and each injected with the injection agent, so that a sealing Tub results.
  • Fig. 14 shows a cross section through a in the ground horizontal pipeline 20, e.g. to derive from leachate containing pollutants. Because in many cases these pipes 20 are porous and outdated, is often a subsequent sealing of the underlying one Soil layers necessary.
  • a number of parallel to Pipeline 20 holes 2 extending from the surface driven out. When withdrawing the The drill head becomes an injection agent into the surrounding soil areas evenly injected flat.
  • the individual bores 2 run parallel to one another on a lying around the center of the pipeline 20 Lateral surface.
  • the injection areas of the neighboring Holes 2 intersect again. This creates a collecting channel below the pipeline 20 formed in the event of a leak which picks up and removes harmful pollutants.
  • FIG. 16 shows a cross section of a pipeline 20 through two parallel holes 2 with vertically starting from each hole 2 Injection areas in a lower portion includes becomes.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Paleontology (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (22)

  1. Procédé permettant de rendre des massifs de terre étanches, en particulier une décharge de déchets, un stockage de vieux produits ou analogues, en utilisant des substances d'étanchéité, procédé pour lequel, au moyen d'un procédé de forage à cheminement complètement commandé, on fait progresser depuis la surface, à l'extérieur du massif de terre, au moins un forage, sous le massif de terre et la substance d'étanchéité étant injectée dans la zone de sol environnante du forage,
    caractérisé en ce qu'
    on utilise une tête de forage à commande totale, télécommandée, pour effectuer le forage et l'injection, et
    la substance d'étanchéité est injectée pendant le déplacement longitudinal de la tête de forage dans le forage, de façon continue, depuis la tête de forage, dans la zone de sol du forage.
  2. Procédé selon la revendication 1, caractérisé en ce que le forage s'étend de façon adaptée au contour du massif de terre.
  3. Procédé selon la revendication 2, caractérisé en ce que le forage s'étend avec un espacement de sécurité par rapport au contour du massif de terre au-dessous duquel on passe.
  4. Procédé selon la revendication 3, caractérisé en ce que l'espacement de sécurité est d'au moins quelques décimètres.
  5. Procédé selon la revendication 1, caractérisé en ce que la substance d'étanchéité est injectée dans les zones de sol voisines du forage pendant la progression et/ou le retrait de la tête de forage.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que la substance d'étanchéité est injectée dans le sol au moyen de buses disposées sur la tête de forage.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la substance d'étanchéité est injectée dans le sol en au moins un jet en éventail.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la substance d'étanchéité est injectée dans le sol en deux jets en éventail ou plus.
  9. Procédé selon la revendication 8, caractérisé en ce que les plans faits par les jets en éventails font un angle de 90° à 180°.
  10. Procédé selon l'une des revendication précédentes, caractérisé en ce que la substance d'étanchéité est également injectée dans le sol dans la direction longitudinale du forage.
  11. Procédé selon la revendication 1, caractérisé en ce qu'un nombre de forages donné, réalisés suivant des espacements parallèles entre eux, permet un passage sous les massifs de terre, le parallélisme pouvant également être obtenu depuis un site exploité en éventail.
  12. Procédé selon la revendication 11, caractérisé en ce que les zones de sol voisines subissant une injection de substances d'étanchéité sont chacune au contact d'un forage ou se chevauchent.
  13. Procédé selon la revendication 11, caractérisé en ce que les zones voisines, subissant une injection de substance d'étanchéité, de chaque forage se coupent.
  14. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les zones de sol voisines subissant une injection de substance d'étanchéité sont situées les unes par rapport aux autres de manière à constituer une couche de barrage fermée, formant des goulottes situées à distance les unes des autres.
  15. Procédé selon la revendication 11, caractérisé en ce qu'un nombre supplémentaire de forages est réalisé, espacés et parallèles entre eux et passant sous le massif de terre, avec un espacement vertical par rapport au premier nombre de forages.
  16. Procédé selon l'une des revendications précédentes, caractérisé en ce que la substance d'étanchéité n'est injectée de façon continue dans la zone de sols que dans une zone partielle le long d'un forage.
  17. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins un forage venant de la surface, passant hors du massif de terre, passe sous le massif de terre et sort de la surface en un autre endroit à l'extérieur du foyer de contamination.
  18. Procédé selon l'une ou plusieurs des revendication précédentes, caractérisé en ce qu'un autre nombre de forages est réalisé suivant des espacements et parallèlement les uns aux autres en étant tournés de 20° à 160°, de façon idéale de 90° par rapport à un premier nombre de forages réalisés selon des espacements et parallèlement les uns aux autres en passant sous le massif de terre.
  19. Procédé selon la revendication 1, caractérisé en ce que la substance d'étanchéité peut être une émulsion de cire minérale, un silicate de polymère, du silicate de potassium, une résine, une émulsion de ciment en mélange avec l'une des substances d'étanchéité citées ou une autre substance cireuse.
  20. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les couches d'étanchéité constituées de substances d'étanchéité injectées et de sols enduits de cire enclosent conjointement le massif de terre, complètement et de façon étanche.
  21. Procédé de contrôle d'un système d'étanchéité constitué selon l'une ou plusieurs de revendications 1 à 20, comprenant en outre les étapes de procédé ci-après, après constitution d'une couche de barrage :
    avancement de forages dont la trajectoire est complètement commandée, dans ou au-dessous des couches de barrage constituées,
    introduction d'éléments de contrôle dans ces forages, et
    transmission des valeurs fournies par les éléments de contrôle à des installations d'exploitation situées au-dessus de la surface.
  22. Procédé selon la revendication 1, caractérisé en ce que le diamètre de forage va jusqu'à un mètre.
EP94915557A 1993-04-28 1994-04-28 Procede permettant de rendre des massifs de terre etanches et dispositif de mise en oeuvre dudit procede Expired - Lifetime EP0690942B2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4313994 1993-04-28
DE4313994 1993-04-28
DE4335290A DE4335290C2 (de) 1993-04-28 1993-10-15 Verfahren zur Abdichtung von Bodenkörpern und Vorrichtung zur Durchführung dieses Verfahrens
DE4335290 1993-10-15
PCT/EP1994/001352 WO1994025688A1 (fr) 1993-04-28 1994-04-28 Procede permettant de rendre des massifs de terre etanches et dispositif de mise en ×uvre dudit procede

Publications (3)

Publication Number Publication Date
EP0690942A1 EP0690942A1 (fr) 1996-01-10
EP0690942B1 EP0690942B1 (fr) 1997-01-08
EP0690942B2 true EP0690942B2 (fr) 1999-10-06

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EP94915557A Expired - Lifetime EP0690942B2 (fr) 1993-04-28 1994-04-28 Procede permettant de rendre des massifs de terre etanches et dispositif de mise en oeuvre dudit procede

Country Status (5)

Country Link
EP (1) EP0690942B2 (fr)
CA (1) CA2161779A1 (fr)
DE (2) DE4335290C2 (fr)
DK (1) DK0690942T4 (fr)
RU (1) RU2129191C1 (fr)

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DE19729809C1 (de) * 1997-07-11 1998-12-17 Flowtex Technologie Import Von Vorrichtung und Verfahren zum Herstellen von Bohrlochverzweigungen
DE19747588B4 (de) * 1997-10-28 2004-05-13 Flowtex Technologie Gmbh & Co. Kg I.K. Temperierbarer Flugplatzverkehrsweg und Verfahren zur Nachrüstung eines bestehenden Flugplatzverkehrsweges
DE10308203B4 (de) * 2003-02-25 2005-06-30 Holl Gmbh Verfahren und Anordnung zur Herstellung einer flüssigkeitsundurchlässigen Schicht im Erdboden
DE102004040189B4 (de) * 2004-08-19 2012-09-20 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtsohle im Erdreich
US8235119B2 (en) 2006-03-30 2012-08-07 Canadian Energy Services, Lp Drilling fluid and method for reducing lost circulation
BRPI0709420A2 (pt) * 2006-03-30 2011-07-12 Canadian Energy Services L.P. fluido de perfuração para reduzir ou controlar a circulação perdida a uma formação subterránea que circunda um furo de poço em um processo de perfuração de um poço, método para reduzir ou impedir a circulação perdida de fluido de perfuração para uma formação subterránea durante o processo de perfuração de poço, agente de perda de escoamento para reduzir ou controlar as pedras de escoamento para uma formação subterránea permeável durante um processo de perfuração de um poço em uma operação de recuperação de óleo ou gás, fluido de perfuração para reduzir ou controlar as perdas de escoscoamento para uma formação subterránea permeável em um processo de perfuração de um poço em uma operação de recuperação de gás, método para reduzir ou controlar as pedras de escoamento para uma formação subterránea permeável em processo de perfuração de um poço em uma operação de recuperação de óleo ou gás, uso de particulas sólidas da cera com um tamanho de mais de 50 micra, uso de um agente de perda de esoamento e uso de fluido de perfuração que compreende um fluido de perfuração que compreende um fluido base e um agente de perda de escoamento
US20100173805A1 (en) * 2007-05-28 2010-07-08 Engineered Drilling Solutions Inc. Use of wax in oil-based drilling fluid
CN109653254B (zh) * 2017-08-06 2021-09-17 滕州道智盛智能科技有限公司 一种铺设垃圾填埋场防渗材料的方法
CN114439049B (zh) * 2022-02-11 2023-09-15 中钢集团马鞍山矿山研究总院股份有限公司 一种用于固废堆体污染防治与生态修复的组合防渗体
CN115726817B (zh) * 2023-01-09 2023-06-02 北京城建设计发展集团股份有限公司 用于山岭隧道施工的靶向止水方法
CN116906055B (zh) * 2023-09-12 2023-11-21 中南大学 控制隧道下穿铁路路基变形的施工方法及棚架支护结构

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EP0690942B1 (fr) 1997-01-08
EP0690942A1 (fr) 1996-01-10
DE4335290C2 (de) 1999-03-11
CA2161779A1 (fr) 1994-11-10
RU2129191C1 (ru) 1999-04-20
DE59401546D1 (de) 1997-02-20
DK0690942T3 (da) 1997-05-12
DK0690942T4 (da) 2000-01-03
DE4335290A1 (de) 1995-04-06

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