EP0833011A1 - Procédé de formation de corps d'injection disposés de façon parrallèle dans le sol - Google Patents

Procédé de formation de corps d'injection disposés de façon parrallèle dans le sol Download PDF

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Publication number
EP0833011A1
EP0833011A1 EP96115374A EP96115374A EP0833011A1 EP 0833011 A1 EP0833011 A1 EP 0833011A1 EP 96115374 A EP96115374 A EP 96115374A EP 96115374 A EP96115374 A EP 96115374A EP 0833011 A1 EP0833011 A1 EP 0833011A1
Authority
EP
European Patent Office
Prior art keywords
injection
borehole
guide cable
pulling
holes
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Withdrawn
Application number
EP96115374A
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German (de)
English (en)
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Flowtex Technologie Import Von Kabelverlegemaschinen GmbH filed Critical Flowtex Technologie Import Von Kabelverlegemaschinen GmbH
Priority to EP96115374A priority Critical patent/EP0833011A1/fr
Publication of EP0833011A1 publication Critical patent/EP0833011A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • 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 producing parallel injection bodies in the floor.
  • Injecting substances under high pressure into the Soil serves various purposes, which are roughly in have two different groups.
  • the first group includes procedures in which the injection agent installation certain substances, such as water or liquid chemicals, a reduced permeability. Let these procedures therefore under the term "sealing measures" sum up.
  • This Methods generally serve to define the strength in Areas of the earth, e.g. Soil improvements, collapse avoidance or Slope protection can be achieved.
  • the international application WO 94/25688 describes a Process for sealing floor bodies, in particular one Landfill, from old deposits, pipelines or too construction pits, in which by means of a full gradient drilling from the surface outside of the floor body to be sealed from a variety are driven by holes under the floor and the sealant is injected into the surrounding floor area becomes.
  • the remote-controlled drill head and the Geometry of the nozzles attached to inject the Sealant can be of various geometries Generate sealing bodies. Attention is paid to the individual holes essentially parallel to each other execute, the distance between each Holes must be chosen so that the injection body overlap and thus create a barrier layer that none untreated areas with higher permeability.
  • sealant e.g. a wax emulsion, a Polymer silicate, water glass, wax, resin or one Binder emulsion in a mixture with one of the above Sealants used.
  • the length of the High pressure injection hole is up to 1500 meters and that Depth up to 300 meters.
  • the object of the invention is achieved by a method with the Features of claim 1 solved.
  • One out of many side by side injection bodies in the ground The barrier layer formed is characterized by the characteristics of Claim 15 described.
  • the invention is based on the idea during or before Inject into an injector under increased pressure Drill an electrically conductive guide cable in and through to pull the borehole.
  • This can be electrical conductive guide cables are generated a magnetic field, which for Control of a steerable drill head in parallel to it running hole can be used. This leaves generate the desired injection body and at the same time precautions can be taken so that the distance of the holes to be drilled parallel to this, if possible great accuracy can be maintained and thus also Position of the injection bodies to each other with great accuracy can be specified.
  • an electrically conductive Guide cable can tie an empty drill pipe to itself Guide cables can be repurposed by a power source is created. This procedure is always recommended if pulling in a cable is too complex or in the given situation is too cumbersome.
  • each side by side arranged injection bodies overlap, so one forms continuous barrier layer under the surface of the earth.
  • the magnetic field around the electrically conductive guide cable generated by this is connected to a power source. This allows one generate a precisely defined magnetic field that is used to control a steerable drill head, which with suitable sensors and Measuring instruments is provided, can be used.
  • the retraction of an electric conductive guide cable in and through the borehole and that Inject into the injection under increased pressure Borehole and the surrounding soil structure at the same time carried out.
  • Simplification can also be done advantageously achieve that feeding a electrically conductive guide cable in and through the borehole is carried out simultaneously with the drilling of the borehole.
  • the distance chosen between the holes so that the Injecting injection agent formed around injection body two adjacent holes each overlap.
  • This Measure can create a layer that depends on Injection agent used either increased strength or has a reduced permeability for certain Has substances or combines both properties. It is especially when performing sealing measures of great importance that a continuous barrier layer without Interruptions is formed.
  • each of the further, parallel drill holes another, electrically conductive guide cable at the same time as the Injecting an injectable into the borehole.
  • This process step is advantageous because this results in successive holes in close proximity to a guide cable can use a magnetic field to control the drill head can be generated. The weaker the magnetic field is by one Guide cable is, or the further the magnetic field generating guide wire is removed, the lower the accuracy of the procedure.
  • one or more Sensor cable pulled through the borehole This measure not only allows the desired geometry different injection bodies with respect to each other, but also checked the geometry of a single injection body can be.
  • An empty pipe is advantageously passed through the borehole moved in from which after making the Injection body whose geometry with the help of suitable Measuring probes, such as gamma probes or a ground radar, are detected can be.
  • tubular element or steel elements in the borehole will be inserted which is a supportive or develop a tensing effect.
  • the steerable drill head before Inject under increased pressure of an injection replaced an injection head.
  • This measure is of course only possible if it is a Through hole acts, which is again at one for the Replacement of the drill head accessible point ends.
  • the Using an injection head has the advantage that both when creating the borehole and afterwards the injection of the injection agent one at a time each task in the best possible way adapted geometry of the tool can be provided. So can for example steerable drill heads are used also have high-pressure outlet openings for water; however, there may be deviating geometries in the Creating injection bodies is desirable so that it it is advantageous to use an injection head to execute, which is specially adapted for the application.
  • one or several measuring probes are inserted in the empty tube to the to inspect manufactured injection bodies and to analyze. It is with a large number of injection bodies of very high importance that the process is successful was carried out, i.e. either side by side Injection body overlapping in the desired manner were made, or injection body solidifying materials no weakening along their Show course. All of these questions can be answered at Use of suitable measuring probes can be answered.
  • the barrier layer is also advantageous characterized in that sensor cables and / or conduits in one or multiple selected holes are arranged.
  • sensor cables and / or conduits in one or multiple selected holes are arranged.
  • Fig. 1 shows a landfill body 10 which e.g. toxic or groundwater hazardous substances 12 or barrels 14 with dangerous chemicals either on the surface of the Contains bottom 16 or below the surface.
  • a barrier is created underneath, which essential horizontal barrier layer with a low Permeability exists. This layer is made by a variety of essentially horizontal, parallel Drilled holes under the soil concerned and a sealant in each of them adjacent floor areas is injected.
  • the drill pipe is made by a conventional drilling device 29 driven out on the surface near the Entry point 20 is set up and at the sections of the Drill pipe as required during drilling on existing drill pipe can be used.
  • everybody Section of the drill pipe can e.g. be five meters long the drilling is interrupted every five meters to Allow a new section to be attached to the boom.
  • the Drill pipe can be a conventional measuring and control device have near the drill head 26, so that during the time in the the drilling process is interrupted, position measurements and Calculations can be performed and Direction control signals are sent to the drill head to regulate the further drilling process.
  • the drilling device 29 removes water, Drilling suspension or (diluted) injection agent under pressure provided and flows through the drill string 28 to Drill head 26, where the water, the drilling suspension, etc. through suitable high pressure water nozzles (not shown) in traditionally emerges and loosens the soil.
  • the first bore 18 is preferably used Conventional location techniques drilled, with a sensor a magnetometer is arranged on or near the drill head, to measure the earth's magnetic field.
  • the sensor can also include inclinometers to determine the orientation of the To determine the drill head.
  • Output signals from the magnetometers and inclinometers become the surface in a known manner e.g. using a cable (not shown) that extends through the drill string 28, and by means of a suitable wiring 30, which with the equipment 31 on the Surface is connected, transferred.
  • These devices 31 include a range finder and one Calculator to calculate the location of the drill head 26 and Determination of the direction of the further drilling process.
  • Direction control signals are then down through the Cables transferred to directional instructions for the drilling process to give.
  • the first bore 18 is under the landfill body 10 drilled to a sufficient depth to completely submerge the landfill body and under any noticeable enrichment of dangerous substances in the soil under the landfill body to penetrate and break through the surface on Exit point 24.
  • a sealing layer to be carried out under a Landfill bodies are preferred as natural injection materials occurring montan wax, which is a fossil vegetable wax is montan wax in combination with cement and bentonite, or another suitable sealant used and by corresponding outlet openings in the drill head 26 or Injection head 26 'into the first bore 18 under high pressure as well as the surrounding structure injected while the drill head is withdrawn.
  • the injection pressure is e.g. between 200 and 1000 bar. Both propulsion and injection when pulling back, each with a single drill head 26 be performed; however, it can also occur after exiting of the drill head at the exit point 24 against one special injection head 26 'with specially arranged Outlet nozzles for the injection agent are replaced.
  • FIG. 3 shows a view along the section line 3-3 in FIG. 2.
  • the injection head 26 'includes a pair of nozzles 40 and 42 on the front 43 of the head, the nozzles with a Angles of e.g. oriented between 60 and 120 degrees are.
  • the high pressure of the injection means 44 pushes it in the soil, depending on the number and geometry of the nozzles or outlet openings a variety of different geometries of the injection body can be achieved.
  • fan-shaped rays 46 and 47 form up to to a distance of e.g. three meters from the center of the Hole 18 are sufficient.
  • the orientation of the injection head 26 'becomes so during the withdrawal of the drill string regulated that the nozzles 40 and 42 generally outward and are directed downwards and with respect to a vertical Level 48 through the center of the borehole result in symmetrical injection bodies.
  • the injection forms a barrier layer in the floor that extends outwards to each side of the borehole at substantially the same distance and in Longitudinal direction along the borehole from exit point 24 below through the landfill body 10 to the entry point 20 extends.
  • Fig. 4 shows a schematic, perspective view of the further procedure when inserting parallel to each other running holes.
  • the cable 32 detached from the drill head 26 or 26 'and by means of the line 49 connected to a switch 50, the line 49 and thus the guide cable 32 with a grounded 114 DC power source 51 or low frequency AC power source by means of the line 51 'and / or with a distance receiver 52 by means of a Line 52 'connects.
  • the end of the cable at exit 24 is then connected to a ground electrode as by Reference numeral 54 is shown in Fig. 6 or via a Return line (the one with broken lines as a reference number 55 in FIG. 6) with the current source 51 connected.
  • the guide cable 32 extends through the Bore 18, which is already filled with injection agent.
  • the guide cable 32 will be in the first Hole 18 inserted.
  • the DC current or Low frequency alternating current generated by source 51 is provided, a circular magnetic field around the guide cable 32 from the control sensor nearby hole can be recorded. This field will while drilling a neighboring or nearby located borehole used to locate the feeler of the Control tool for the adjacent borehole relative to Determine guide cables and to steer the bore.
  • the guide cable 32 is also used to Control signals to the sensor of the nearby control tool to send to control the sensor measurement program, e.g.
  • the third function of the guide cable is it to serve as an antenna for range finding signals to receive the measurements that are represented by the probe were carried out by the sensor of the Control tool for distance receiver 52 on the Surface to be sent.
  • a subsequent hole is parallel to the initial, or reference borehole 18, is to be drilled Drilling device 29 to a second entry point, e.g. the place 60 moves next to the place 20.
  • parallel holes are to be executed to a layer 46, 47
  • an adjacent bore 62 must drilled from location 60, one from the reference well Distance r to be spaced. This distance r is less than the double lateral extension of the injection body 46, 47 so that when injectable in the second hole is injected, this with the in the first hole injected injectable can overlap to one to form a continuous barrier between the holes, as shown particularly in FIG. 5.
  • the drill head 26 is used in connection with FIG. 1 described manner operated to the second bore 62 so bring that it is also down and under the Landfill site 10 extends to the surface at one Exit point 64 on the far side of the Drilling device 29 returns.
  • the direction of the second Drilling and their location relative to the first drilling will be done carefully and precisely regulated according to the present invention so that the holes are parallel, and in particular that they are in a predetermined, desired distance from each other be carried out to ensure that in the after Forming the injection-molded layer 46, 47 no free spaces remain. If borehole 62 has been completed, as described above, the drill head is replaced by an injection head and a second guide cable is on the drilling or injection head 26 or 26 'attached.
  • This second cable which is shown in FIG 32 'is drawn through borehole 62 when the drill string 28 is withdrawn while at the same time Time the injection means 44 '(Fig. 5) into the borehole 62 and is injected into the soil surrounding the borehole, as in Fig. 5 is shown with 46 'and 47'. If in the second A guide cable 32 'has also been drawn into the bore this again after completing the injection body conductive with a power source 51 and one Distance receiver 52 are connected.
  • Figs. 4 to 9 it will Guide cable 32 and each of the following guide cables 32 ' again as a reference for directing the bore adjacent Wells used by using a direct current of e.g. 10 amps passed through the cable 32 to a surrounding magnetic field To generate H, which is illustrated by arrows 72 in Fig. 5 becomes.
  • the direction of the bore of borehole 72 is shown in Depends on the measurements of this field H regulated how was described above by the direction of the drill head 26 under the control of a conventional drill steering tool 78, which is arranged in a drilling control device to adapt.
  • This device is directly behind the drill head in one Section 28 'of the drill string attached by the Main linkage 28 through an insulating connection 80 (see FIG. 7 and 8) is separated.
  • the insulation connection can be five to ten Meters from the front end or tip of the drill head 26 be located away and electrically isolates the End portion 28 'of the drill string from the main, or upper Area of the boom.
  • the drilling regulator 79 receives information from the Surface and provides data from the borehole to the Surface. Accordingly, the drilling regulator 79 includes a sensor and a control sensor 81, which in addition to Drill steering tool 78 includes a magnetic field sensor 82 which preferably a triaxial magnetometer for measuring the Vector components of the entire static magnetic field (including the generated magnetic field H) along the Includes orthogonal X, Y and Z axes. If an alternating current low frequency is used in the guide cable separate AC magnetometer sensor used. Of the Control sensor 81 additionally includes a pair of inclinometers 83 for measuring the direction of the earth's gravitational field, around the Align drill pipe and regulator 116.
  • a control sensor 81 which in addition to Drill steering tool 78 includes a magnetic field sensor 82 which preferably a triaxial magnetometer for measuring the Vector components of the entire static magnetic field (including the generated magnetic field H) along the Includes orthogonal X, Y and Z axes. If an alternating current low frequency is used in the guide cable separate AC
  • the transmission of the measured parameters to the surface is after passing through the corresponding data of an analog-digital converter 84 and an associated digital Distance modulator 86, the phase-modulated currents with approximately 200 to 2,400 Hz generated, digitally transmitted.
  • the coil 90 is with the Drill pipe 28 through line 92 and with the drill pipe 28 'connected by line 94, so that in the drill pipe 28th an alternating magnetic field is generated by the current flow 96 which is shown by the field lines H2 and by arrows 98 in FIG. 7 is shown. This magnetic field is coaxial with that Drill pipe 28.
  • the AC magnetic field H2 becomes inductive coupled to the adjacent guide cable 32, the Cable as a secondary turn of a transformer or as a receiving antenna acts to a corresponding one To generate audio frequency voltage V2, which can be generated using the Line 49, the switch 50 and the line 52 'the Range finder 52 is supplied.
  • the received signals are added to a demodulator and its output in turn fed into a suitable computer 100 (FIG. 4), which the digitized data processed and the necessary Performs calculations as described.
  • the computer calculates the distance and the from the received data Direction of the sensor 81 relative to the guide cable 32 and determines what corrections, if necessary, regarding the Drilling direction are required.
  • the required drilling instructions are then transmitted to the control sensor 81 so that the Deflection tool 78 is controlled accordingly. Consequently the drill uses the information from the control probe 81, to keep borehole 62 on a path that one constant distance r (see FIG. 5) from the guide cable 32 is spaced so that the two holes within one very narrow tolerance run parallel to each other
  • a third well e.g. borehole 70 6 using the cable 32 in the reference well 18 generated magnetic field are drilled, making it not a guide cable is necessary through the second borehole 62 move in.
  • the desired accuracy of the to be performed Holes and the strength of the generated magnetic fields there are thus various possibilities in which not every hole has to be provided with a guide cable.
  • FIG. 9 and 10 show a drill head 132, which is not only is used to drill a borehole 134, but also around to place a guide cable 136 in the borehole.
  • the Guide cable is placed within the hollow drill pipe 130 arranged and with the drill pipe at the front end the same, i.e. the end facing the drill head.
  • the cable on drill head 132 or that shown in FIG. 8 shown control device, which is identified by reference number 142 is indicated by any suitable attachment 138 may be appropriate.
  • the cable goes into borehole 134 drawn in during drilling.
  • the drill head 132 can be removed and the guide cable 136 attached to a mount 140 are, whereupon the drill string 130 from the bore and from the already retracted guide cable 136 is withdrawn.
  • a sealing or Solidifying agent is injected into the soil.
  • the drill head against an injection head be replaced or with an injection adapter be provided, which is preferably arranged centrally Has passage opening through which the guide cable 136th can pass through, so that the drill pipe with it attached injection head withdrawn through bore 134 while the guide cable 136 is stationary in the bore remains.
  • Fig. 11 shows a further variant, according to the blind hole 148 is drilled. As shown, this is at the drill head 150 Guide cable 136 attached.
  • the drill head or preferably a fastening ring that can be detached from the drill head includes a pair of hinged anchors 152 and 154 which are usually pivoted into the drill head. If the Drilling a preselected location or depth has reached, the anchors are released and outward in the ground 156 jammed to the drill head or preferably one of the To fix the drilling head detachable fastening ring in the borehole, while the drill head with simultaneous emergence of Injection agent together with the drill pipe 130 can be withdrawn. Also in this embodiment the drilling or injection head has an opening through which pass through the downhole guide cable 136 can.
  • the method is used in a similar way in the field of Hydraulic engineering if there is a sealing core area in a dam body should be generated.
  • several come in parallel mutually extending injection bodies for use which, as described in the first embodiment, be arranged side by side and parallel to each other.
  • dams are very long Juxtapose vertically running holes with injection of a suitable sealant very expensive and accordingly expensive.
  • FIG. 12 shows another embodiment of the present Invention in which the injection body for soil consolidation be used. It is a leading ridge securing in the course of the planned Routing of a tunnel 164 in the ground 160. Before the Execution of the tunnel drive through the broken Line 166 are shown in the area Tunnel ridges, i.e. along the planned route, solidifying injection body created. To do this, either from the surface 161 or from the tunneling of the tunnel excavation already carried out from a first Pilot hole 148 along the planned tunnel route carried out. Depending on the geometric and geological The bore 148 may end at the surface 161 or, as has been described with reference to FIG. 11, blind end up. Depending on the application, one or the other, above The method described uses a guide cable 136 in to arrange the bore 148 and at the same time one Generate injection body, the present The exemplary embodiment is preferably ring-shaped around the bore 148 is arranged around.
  • Another field of application of the method according to the invention represents the slope sheeting Hang with the help of parallel injection bodies, the each create a solidified floor area, secured.
  • the exact course and distance of each Injection body to each other of great importance is the exact course and distance of each Injection body to each other of great importance.
  • Another field of application of the method according to the invention lies in soil improvement.
  • the injection agent can do this for example lime powder, fine sand or Portland cement, that has a compacting and reinforcing effect, which means that the floor in the desired area becomes more sustainable.
  • Process preferably carried out in that a variety of holes running parallel to each other in the treating soil for injection of a suitable Compaction agent can be used.
  • the distance between the individual, parallel holes due to the minor deviations from the ideal parallelism very large Choose which means the total number of parallel holes required can be reduced.
  • the total amount of Injection means reduced by this measure.
  • the all the above-mentioned areas of application can not only be a guide cable, but at the same time an empty pipe and / or a sensor cable in the respective Holes drilled.
  • Monitoring cables or special probes such as gamma probes or a downhole radar can be introduced to measure the geometry of the to check the injection body generated.
  • monitoring cables or Sensor cables in the injection body thus helps the number the required parallel holes reduce even further and the amount of used To further optimize the injection agent.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
EP96115374A 1996-09-25 1996-09-25 Procédé de formation de corps d'injection disposés de façon parrallèle dans le sol Withdrawn EP0833011A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96115374A EP0833011A1 (fr) 1996-09-25 1996-09-25 Procédé de formation de corps d'injection disposés de façon parrallèle dans le sol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96115374A EP0833011A1 (fr) 1996-09-25 1996-09-25 Procédé de formation de corps d'injection disposés de façon parrallèle dans le sol

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EP0833011A1 true EP0833011A1 (fr) 1998-04-01

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940774A1 (de) * 1999-08-27 2001-04-19 Keller Grundbau Gmbh Verfahren und Vorrichtung zum Herstellen von flächenhaften Dichtelementen im Erdboden
EP1099799A3 (fr) * 1999-11-10 2002-09-11 Smet-F & C Dispositif et procédé de fabrication d'un pieu par injection à haute pression
EP1447521A2 (fr) * 2003-01-24 2004-08-18 FERRARI DE NOBILI S.r.l. Procédé pour consolider, imperméabiliser et drainer des ouvrages souterrains par forages dirigés
DE102004040189A1 (de) * 2004-08-19 2006-04-13 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtsohle im Erdreich
CN114324485A (zh) * 2022-02-28 2022-04-12 山东省煤田地质局第五勘探队 地下水即时采样检测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867240A (en) * 1987-01-23 1989-09-19 Soil Jet Co., Inc. Method and apparatus for molding underground diaphragms
WO1995021989A1 (fr) * 1994-02-11 1995-08-17 Atlas Copco Craelius Ab Procede de formation dans le sol d'une couche isolante sensiblement etanche, et dispositif pour sa mise en ×uvre
US5515931A (en) * 1994-11-15 1996-05-14 Vector Magnetics, Inc. Single-wire guidance system for drilling boreholes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867240A (en) * 1987-01-23 1989-09-19 Soil Jet Co., Inc. Method and apparatus for molding underground diaphragms
WO1995021989A1 (fr) * 1994-02-11 1995-08-17 Atlas Copco Craelius Ab Procede de formation dans le sol d'une couche isolante sensiblement etanche, et dispositif pour sa mise en ×uvre
US5515931A (en) * 1994-11-15 1996-05-14 Vector Magnetics, Inc. Single-wire guidance system for drilling boreholes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940774A1 (de) * 1999-08-27 2001-04-19 Keller Grundbau Gmbh Verfahren und Vorrichtung zum Herstellen von flächenhaften Dichtelementen im Erdboden
DE19940774C2 (de) * 1999-08-27 2003-03-06 Keller Grundbau Gmbh Verfahren und Vorrichtung zum Herstellen von flächenhaften Dichtelementen im Erdboden
EP1099799A3 (fr) * 1999-11-10 2002-09-11 Smet-F & C Dispositif et procédé de fabrication d'un pieu par injection à haute pression
EP1447521A2 (fr) * 2003-01-24 2004-08-18 FERRARI DE NOBILI S.r.l. Procédé pour consolider, imperméabiliser et drainer des ouvrages souterrains par forages dirigés
EP1447521A3 (fr) * 2003-01-24 2004-10-06 FERRARI DE NOBILI S.r.l. Procede pour consolider, impermeabiliser et drainer des ouvrages souterrains par forages diriges
US6893188B2 (en) 2003-01-24 2005-05-17 Ferrari De Nobili S.R. L. Continuous method of realization of works underground, tunnels and excavations in general with works of consolidation, permeabilization and drainage obtained through guided perforations
EP2034129A2 (fr) 2003-01-24 2009-03-11 Ferrari de Nobile S.r.L. Procédé de consolidation, imperméabilisation et drainage d'ouvrages souterrains par des perforations guidées
EP2034129A3 (fr) * 2003-01-24 2011-01-26 Ferrari de Nobile S.r.L. Procédé de consolidation, imperméabilisation et drainage d'ouvrages souterrains par des perforations guidées
DE102004040189A1 (de) * 2004-08-19 2006-04-13 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtsohle im Erdreich
DE102004040189B4 (de) * 2004-08-19 2012-09-20 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtsohle im Erdreich
CN114324485A (zh) * 2022-02-28 2022-04-12 山东省煤田地质局第五勘探队 地下水即时采样检测装置
CN114324485B (zh) * 2022-02-28 2023-07-25 山东省煤田地质局第五勘探队 地下水即时采样检测装置

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