WO2011104431A1 - Method and apparatus for injecting material into soil - Google Patents

Method and apparatus for injecting material into soil Download PDF

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Publication number
WO2011104431A1
WO2011104431A1 PCT/FI2011/050103 FI2011050103W WO2011104431A1 WO 2011104431 A1 WO2011104431 A1 WO 2011104431A1 FI 2011050103 W FI2011050103 W FI 2011050103W WO 2011104431 A1 WO2011104431 A1 WO 2011104431A1
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WO
WIPO (PCT)
Prior art keywords
soil
injection
volume flow
feed volume
injecting
Prior art date
Application number
PCT/FI2011/050103
Other languages
French (fr)
Other versions
WO2011104431A8 (en
Inventor
Sami HÄKKINEN
Tuomas Lievonen
Original Assignee
Uretek Worldwide Oy
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 Uretek Worldwide Oy filed Critical Uretek Worldwide Oy
Priority to EP11746913.0A priority Critical patent/EP2539514A4/en
Priority to US13/580,744 priority patent/US8956083B2/en
Priority to AU2011219673A priority patent/AU2011219673A1/en
Publication of WO2011104431A1 publication Critical patent/WO2011104431A1/en
Publication of WO2011104431A8 publication Critical patent/WO2011104431A8/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • 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

Definitions

  • the invention relates to a method of injecting a material into soil, the method comprising injecting a material which expands as a consequence of a chemical reaction into the soil through an injection bar.
  • the invention further relates to an apparatus for injecting a material into soil, the apparatus comprising an injection device for injecting a material which expands as a consequence of a chemical reaction, and an injection bar for feeding the material injected by the injection device into the soil.
  • Soil is improved and/or structures are lifted using a solution wherein a material which expands as a consequence of a chemical reaction is injected into the soil.
  • An amount of the material to be injected may be determined by examining the properties of the soil in advance, e.g. by penetrometer measurement. The sufficiency of the injected material may then be checked after- wards by similar measurement for measuring the properties of the soil. However, such a process for determining the amount of the material to be injected is slow and unreliable.
  • a solution is also known wherein a pressure sensor is arranged in the soil, and a signal obtained from the pressure sensor is interpreted to mean that the soil has become denser. On the basis of the signal obtained, an attempt is made to estimate when the soil has become dense enough.
  • US 6 634 831 discloses a solution wherein a reaction on the surface of the soil caused by injection is monitored. The solution thus involves monitoring a rise of the surface of the soil, and when such a reaction is detected, it is then determined that the soil has become sufficiently dense, and the injection is stopped. Such a solution is extremely useful and reliable, but its use requires good skills and, typically, the use of a laser measurement sensor or another reliable measurement sensor for detecting a reaction on the surface of the soil.
  • An object of the present invention is to provide a novel solution for injecting a material into soil.
  • a method according to the invention is characterized by monitoring, during injection, a quantity related to a feed volume flow of the injectable mate- rial, and when the quantity indicates that the feed volume flow has dropped below a determined limit value, reacting by a procedure related to the injection.
  • An apparatus is characterized in that the apparatus comprises a meter for measuring a feed volume flow of the in- jectable material, and a control device configured to control the apparatus in response to the feed volume flow measured by the meter having dropped below a determined limit value.
  • a material which expands as a consequence of a chemical reaction is injected into the soil through an injection bar.
  • a quantity related to a feed volume flow of the injectable material is monitored.
  • a reaction regarding a procedure related to the injection follows.
  • the reaction may be e.g. an increase in feed pressure, which e.g. enables the feed volume flow to be increased to be above the limit value again or at least the injection not to be stopped.
  • a drop in the feed volume flow below a determined value may be interpreted to mean that a particular point in the soil has become sufficiently dense.
  • injection of the material may be stopped or the injection bar may be lifted upwards, whereby injection continues to above the already injected point.
  • the solution prevents the injection bar from clogging.
  • the feed volume flow may be increased or at least injection may be continued and more of the material may be injected into a point being processed.
  • by monitoring the feed volume flow it is possible to observe whether the soil has become sufficiently dense and then, as necessary, either stop injecting or lift the injection bar upwards, in which case it is thus possible to continue injecting by using the same injection bar and process the soil above the already processed point in the soil.
  • the figure shows an apparatus 1 for injecting a material 3 which expands as a consequence of a chemical reaction into soil 2.
  • the material 3 which expands as a consequence of a chemical reaction condenses, fills or replaces surrounding soil, or lifts and balances structures. Further, the material 3 which expands as a consequence of a chemical reaction hardens in the soil 2.
  • the apparatus 1 comprises an injection device 4 for feeding an injectable material to an injection bar 5.
  • the injection device 4 generates a suffi- cient hydraulic pressure to enable the injectable material to be fed to the soil through the injection bar 5, but the actual condensation of the soil is caused by a chemical reaction that presses the injected material 3 against the soil 2.
  • the injection device 4 is only shown schematically.
  • the apparatus 1 also comprises a meter 6 for measuring a feed volume flow of the injectable material.
  • the apparatus 1 further comprises a control unit 7 wherein measurement data is collected and which is used for controlling the operation of the components of the apparatus.
  • the apparatus 1 may still further comprise a pulling device 8 to enable the injection bar 5 to be pulled upwards, i.e. away from the soil 2, when necessary.
  • the material 3 which expands as a consequence of a chemical reaction may be e.g. a polymer, expanding resin or an organically incrystalliz- able, chemically expanding multicomponent substance.
  • the material may thus be a mixture of mainly two components, for instance.
  • a first component may mainly contain e.g. polyetherpolyol and/or polyesterpolyol.
  • a second component may contain e.g. isocyanate.
  • the volumetric ratios of the first and the second components may vary e.g. between 0.8 to 1 .2: 0.8 to 1 .8.
  • the material 3 which expands as a consequence of a chemical reaction may further contain catalysts and water and, when desired, also other components, such as silica, stone dust, fibre reinforcements and other possible additives and/or auxiliaries.
  • the injectable material is preferably a substance which starts to react by expanding within 0.5 to 3600 seconds after having been injected into the soil 2. In an embodiment, the material starts to react after 20 or more than 25 seconds since the injection. Furthermore, in an embodiment, the material starts to react after less than 50 seconds after the injection.
  • the material expands e.g. 1 .1 to 120 times its original volume.
  • the expansion factor of the material i.e. the volume of the mate- rial at the end of the reaction as compared with the volume of the material at the beginning of the reaction, may be e.g. of the order of 1 .1 to 120.
  • the material is arranged to expand 1 .5 to 20 times its original volume.
  • the outer diameter of the injection bar 5 may vary e.g. between 3 and 200 mm, whereby its inner diameter may vary e.g. between 2 and 195 mm.
  • the length of the injection bar 5 may vary e.g. between 0.5 and 25 m.
  • the injection bar 5 may be made e.g. of metal, such as steel.
  • the injection bar 5 may also be made of some other material, such as plastics, e.g. polyethylene PE. Further, the injection bar 5 does not necessarily have to be stiff.
  • the injection bar 5 may thus be e.g. a hose or a pipe made of plastics. Further, if the injection bar is a hose, its walls may be provided with textile reinforcement structures or metal or other corresponding reinforcements.
  • the material 3 which expands as a consequence of a chemical reaction starts to harden upon being fed from the injection device 4 to a feed end of the injection bar 5.
  • the injectable material has to exit the injection bar 5 be- fore hardening and becoming substantially attached to the walls of the injection bar 5 so as to enable a desired amount of the material to be injected into a particular point or when it is desired to utilize the injection bar 5 for injecting into some other point.
  • the gel time GT of the injectable material is over, it is too hard and too tightly attached to the injection bar 5 if it still resides inside the injection bar 5 when the gel time comes to an end. Consequently, the time the material takes to pass through the injection bar 5 thus has to be no more than the gel time GT of the material.
  • the flow rate of the material in the injection bar 5 decreases as the viscosity of the material changes when a partial chemical reaction takes place already inside the bar, whereupon the density of the material increases as well.
  • the feed volume flow decreases during injection owing to counterpressure caused by the soil, material, or another reason.
  • the material has to be discharged from the injection bar within a period of time shorter than the gel time in order for the injection bar 5 not to clog.
  • the time the material takes to pass through the injection bar 5 is e.g. less than 0.5 or 0.3 times the gel time GT of the material.
  • the feed volume flow depends on the density of the material, the surface area of the injection bar, and the flow rate of the material in the injection bar.
  • the example uses a material whose reaction time GT is 15 s.
  • the length I of the injection bar is 5 m.
  • the gel time of the material is 15 s, it is possible to determine that the permissible dwell time t is 5 s. Consequently, the flow rate v has to be at least 1 m/s.
  • the material in the example is a combination of two components, wherein the density of component A is 1036 kg/m 3 and the density of component B is 1230 kg/m 3 .
  • the ratio 1 :1 the combined density
  • the feed volume flow may be measured and its magnitude may be monitored by the meter 6. If the feed volume flow drops below a determined limit value, the control unit 7 may be used for controlling the injection device 4 to increase the feed pressure, which increases the feed volume flow to be above the limit value again. This prevents the injection bar 5 from clogging. On the other hand, a drop in the feed volume flow below a determined limit value may be determined to mean that the soil 2 has become dense enough at the particular point. This enables the control unit 7 to be programmed such that it controls the injection device 4 to stop injecting the material. On the other hand, the control unit 7 may also be controlled to control the pulling device 8 such that the pulling device 8 is used for lifting the injection bar 5 upwards, in which case injecting continues to above the already injected point.
  • the feed volume flow may be monitored by monitoring some other quantity related to the feed vol- ume flow.
  • quantities include e.g. feed pressure, pull-up friction of the injection bar, and temperature of the injection flow. Then, a rise in the temperature of the injectable material, for instance, may indicate a decrease in the feed volume flow. It is not necessary to react to a change in a quantity relating to the feed volume flow automatically. In such a case, no control unit 7 is thus necessary, but the operator may monitor the particular quantity and connect the devices to react in a suitable manner.
  • the control unit 7 may comprise a software product whose execution in the control unit 7 is configured to provide at least some of the procedures set forth in this description.
  • the software product may be downloaded into the control unit 7 from a storage or memory means, such as a memory stick, memory diskette, hard disk, network server or the like, the execution of the software product in a processor of a control unit computer or the like providing procedures set forth in this description for injecting a material into soil.
  • the features set forth in the present application may be used as such, irrespective of other features.
  • the features set forth in the present invention may be combined in order to provide different combinations.

Abstract

The invention relates to a method and an apparatus for injecting a material into soil. A material (3) which expands as a consequence of a chemical reaction is injected into the soil (2) through an injection bar (5). During injection, a quantity related to a feed volume flow of the injectable material (3) is monitored. When the quantity indicates that the feed volume flow has dropped below a determined limit value, a reaction regarding a procedure related to the injection follows.

Description

METHOD AND APPARATUS FOR INJECTING MATERIAL INTO SOIL
BACKGROUND OF THE INVENTION
The invention relates to a method of injecting a material into soil, the method comprising injecting a material which expands as a consequence of a chemical reaction into the soil through an injection bar.
The invention further relates to an apparatus for injecting a material into soil, the apparatus comprising an injection device for injecting a material which expands as a consequence of a chemical reaction, and an injection bar for feeding the material injected by the injection device into the soil.
Soil is improved and/or structures are lifted using a solution wherein a material which expands as a consequence of a chemical reaction is injected into the soil. An amount of the material to be injected may be determined by examining the properties of the soil in advance, e.g. by penetrometer measurement. The sufficiency of the injected material may then be checked after- wards by similar measurement for measuring the properties of the soil. However, such a process for determining the amount of the material to be injected is slow and unreliable. A solution is also known wherein a pressure sensor is arranged in the soil, and a signal obtained from the pressure sensor is interpreted to mean that the soil has become denser. On the basis of the signal obtained, an attempt is made to estimate when the soil has become dense enough. The solution is quite unreliable and, as mentioned above, it requires a separate sensor to be arranged in the soil. US 6 634 831 discloses a solution wherein a reaction on the surface of the soil caused by injection is monitored. The solution thus involves monitoring a rise of the surface of the soil, and when such a reaction is detected, it is then determined that the soil has become sufficiently dense, and the injection is stopped. Such a solution is extremely useful and reliable, but its use requires good skills and, typically, the use of a laser measurement sensor or another reliable measurement sensor for detecting a reaction on the surface of the soil. BRIEF DESCRIPTION OF THE INVENTION
An object of the present invention is to provide a novel solution for injecting a material into soil.
A method according to the invention is characterized by monitoring, during injection, a quantity related to a feed volume flow of the injectable mate- rial, and when the quantity indicates that the feed volume flow has dropped below a determined limit value, reacting by a procedure related to the injection.
An apparatus according to the invention is characterized in that the apparatus comprises a meter for measuring a feed volume flow of the in- jectable material, and a control device configured to control the apparatus in response to the feed volume flow measured by the meter having dropped below a determined limit value.
In the disclosed solution, a material which expands as a consequence of a chemical reaction is injected into the soil through an injection bar. During injection, a quantity related to a feed volume flow of the injectable material is monitored. When the quantity indicates that the feed volume flow has dropped below a determined limit value, a reaction regarding a procedure related to the injection follows. The reaction may be e.g. an increase in feed pressure, which e.g. enables the feed volume flow to be increased to be above the limit value again or at least the injection not to be stopped. On the other hand, a drop in the feed volume flow below a determined value may be interpreted to mean that a particular point in the soil has become sufficiently dense. In such a case, for instance, injection of the material may be stopped or the injection bar may be lifted upwards, whereby injection continues to above the already injected point. Such a solution makes control and execution of the process simple. The solution prevents the injection bar from clogging. By increasing the feed pressure, the feed volume flow may be increased or at least injection may be continued and more of the material may be injected into a point being processed. On the other hand, by monitoring the feed volume flow, it is possible to observe whether the soil has become sufficiently dense and then, as necessary, either stop injecting or lift the injection bar upwards, in which case it is thus possible to continue injecting by using the same injection bar and process the soil above the already processed point in the soil.
BRIEF DESCRIPTION OF THE FIGURES
The invention is described in closer detail in the accompanying figure, which schematically shows an apparatus for injecting a material into soil.
For the sake of clarity, the figure shows some embodiments of the invention in a simplified manner. DETAILED DESCRIPTION OF THE INVENTION
The figure shows an apparatus 1 for injecting a material 3 which expands as a consequence of a chemical reaction into soil 2. The material 3 which expands as a consequence of a chemical reaction condenses, fills or replaces surrounding soil, or lifts and balances structures. Further, the material 3 which expands as a consequence of a chemical reaction hardens in the soil 2.
The apparatus 1 comprises an injection device 4 for feeding an injectable material to an injection bar 5. The injection device 4 generates a suffi- cient hydraulic pressure to enable the injectable material to be fed to the soil through the injection bar 5, but the actual condensation of the soil is caused by a chemical reaction that presses the injected material 3 against the soil 2. For the sake of clarity, since the structure and operation per se of the injection device 4 which feeds the injectable material to the injection bar 5 is known to a person skilled in the art, the injection device 4 is only shown schematically.
The apparatus 1 also comprises a meter 6 for measuring a feed volume flow of the injectable material. The apparatus 1 further comprises a control unit 7 wherein measurement data is collected and which is used for controlling the operation of the components of the apparatus. The apparatus 1 may still further comprise a pulling device 8 to enable the injection bar 5 to be pulled upwards, i.e. away from the soil 2, when necessary.
The material 3 which expands as a consequence of a chemical reaction may be e.g. a polymer, expanding resin or an organically incrystalliz- able, chemically expanding multicomponent substance. The material may thus be a mixture of mainly two components, for instance. In such a case, a first component may mainly contain e.g. polyetherpolyol and/or polyesterpolyol. A second component may contain e.g. isocyanate. The volumetric ratios of the first and the second components may vary e.g. between 0.8 to 1 .2: 0.8 to 1 .8. The material 3 which expands as a consequence of a chemical reaction may further contain catalysts and water and, when desired, also other components, such as silica, stone dust, fibre reinforcements and other possible additives and/or auxiliaries.
The injectable material is preferably a substance which starts to react by expanding within 0.5 to 3600 seconds after having been injected into the soil 2. In an embodiment, the material starts to react after 20 or more than 25 seconds since the injection. Furthermore, in an embodiment, the material starts to react after less than 50 seconds after the injection.
The material expands e.g. 1 .1 to 120 times its original volume. In other words, the expansion factor of the material, i.e. the volume of the mate- rial at the end of the reaction as compared with the volume of the material at the beginning of the reaction, may be e.g. of the order of 1 .1 to 120. Preferably, the material is arranged to expand 1 .5 to 20 times its original volume.
The outer diameter of the injection bar 5 may vary e.g. between 3 and 200 mm, whereby its inner diameter may vary e.g. between 2 and 195 mm. The length of the injection bar 5 may vary e.g. between 0.5 and 25 m. The injection bar 5 may be made e.g. of metal, such as steel. The injection bar 5 may also be made of some other material, such as plastics, e.g. polyethylene PE. Further, the injection bar 5 does not necessarily have to be stiff. The injection bar 5 may thus be e.g. a hose or a pipe made of plastics. Further, if the injection bar is a hose, its walls may be provided with textile reinforcement structures or metal or other corresponding reinforcements.
The material 3 which expands as a consequence of a chemical reaction starts to harden upon being fed from the injection device 4 to a feed end of the injection bar 5. The injectable material has to exit the injection bar 5 be- fore hardening and becoming substantially attached to the walls of the injection bar 5 so as to enable a desired amount of the material to be injected into a particular point or when it is desired to utilize the injection bar 5 for injecting into some other point. When the gel time GT of the injectable material is over, it is too hard and too tightly attached to the injection bar 5 if it still resides inside the injection bar 5 when the gel time comes to an end. Consequently, the time the material takes to pass through the injection bar 5 thus has to be no more than the gel time GT of the material. On the other hand, the flow rate of the material in the injection bar 5 decreases as the viscosity of the material changes when a partial chemical reaction takes place already inside the bar, whereupon the density of the material increases as well. On the other hand, it is typical that the feed volume flow decreases during injection owing to counterpressure caused by the soil, material, or another reason. Thus, in reality, the material has to be discharged from the injection bar within a period of time shorter than the gel time in order for the injection bar 5 not to clog. Preferably, the time the material takes to pass through the injection bar 5 is e.g. less than 0.5 or 0.3 times the gel time GT of the material. The feed volume flow depends on the density of the material, the surface area of the injection bar, and the flow rate of the material in the injection bar. The feed volume flow may be determined by the formula qm = p x A x v, wherein: qm = Volume flow (kg/s)
p = Density (kg/m3)
A = Surface area (m2)
v = Flow rate (m/s)
In the following, a procedure for determining a limit value for the feed volume flow is examined by way of example. The example uses a material whose reaction time GT is 15 s. The length I of the injection bar is 5 m. The flow rate of the material is determined v=l/t, wherein I is the length of the injection bar 5 and t is the permissible dwell time of the material in the injection bar 5. In the example, when the gel time of the material is 15 s, it is possible to determine that the permissible dwell time t is 5 s. Consequently, the flow rate v has to be at least 1 m/s. The material in the example is a combination of two components, wherein the density of component A is 1036 kg/m3 and the density of component B is 1230 kg/m3. Thus, with the ratio 1 :1 , the combined density
p = 0.5 x 1036 kg/m3 + 0.5 x 1230 kg/m3 = 1 133 kg/m3. In the example, the inner diameter of the injection bar 5 is 9 mm, whereby its radius r = 0.0045 m. The cross-sectional area of the bar
A = π x r2 = 0.0000636m2. Consequently, a limit value for the feed volume flow qm is obtained such that qm = 0.072 kg/s = 4.3 kg/min.
The feed volume flow may be measured and its magnitude may be monitored by the meter 6. If the feed volume flow drops below a determined limit value, the control unit 7 may be used for controlling the injection device 4 to increase the feed pressure, which increases the feed volume flow to be above the limit value again. This prevents the injection bar 5 from clogging. On the other hand, a drop in the feed volume flow below a determined limit value may be determined to mean that the soil 2 has become dense enough at the particular point. This enables the control unit 7 to be programmed such that it controls the injection device 4 to stop injecting the material. On the other hand, the control unit 7 may also be controlled to control the pulling device 8 such that the pulling device 8 is used for lifting the injection bar 5 upwards, in which case injecting continues to above the already injected point.
In addition to or instead of using the meter 6, the feed volume flow may be monitored by monitoring some other quantity related to the feed vol- ume flow. Such quantities include e.g. feed pressure, pull-up friction of the injection bar, and temperature of the injection flow. Then, a rise in the temperature of the injectable material, for instance, may indicate a decrease in the feed volume flow. It is not necessary to react to a change in a quantity relating to the feed volume flow automatically. In such a case, no control unit 7 is thus necessary, but the operator may monitor the particular quantity and connect the devices to react in a suitable manner.
The control unit 7 may comprise a software product whose execution in the control unit 7 is configured to provide at least some of the procedures set forth in this description. The software product may be downloaded into the control unit 7 from a storage or memory means, such as a memory stick, memory diskette, hard disk, network server or the like, the execution of the software product in a processor of a control unit computer or the like providing procedures set forth in this description for injecting a material into soil.
In some cases, the features set forth in the present application may be used as such, irrespective of other features. On the other hand, when necessary, the features set forth in the present invention may be combined in order to provide different combinations.
The drawings and the related description are only intended to illustrate the idea of the invention. The details of the invention may vary within the scope of the claims.

Claims

1. A method of injecting a material into soil, the method comprising injecting a material (3) which expands as a consequence of a chemical reaction into the soil (2) through an injection bar (5), characterized by moni- toring, during injection, a quantity related to a feed volume flow of the injectable material (3), and when the quantity indicates that the feed volume flow has dropped below a determined limit value, reacting by a procedure related to the injection.
2. A method as claimed in claim 1, characterized by increas- ing a feed pressure when the quantity indicates that the feed volume flow has dropped below the determined limit value.
3. A method as claimed in claim 1, characterized by stopping injecting the material into a particular point in the soil (2) when the quantity indicates that the feed volume flow has dropped below the determined limit value.
4. A method as claimed in claim 3, characterized by stopping injecting the material into the particular point by lifting a lower end of the injection bar (5) above the particular point.
5. A method as claimed in claim 3, characterized by stopping feeding the material to the injection bar (5) when the quantity indicates that the feed volume flow has dropped below the determined limit value.
6. A method as claimed in any one of the preceding claims, characterized by monitoring a quantity related to the feed volume flow of the injectable material (3) by a meter (6) measuring the feed volume flow.
7. An apparatus for injecting a material into soil, the apparatus comprising an injection device (4) for injecting a material (3) which expands as a consequence of a chemical reaction, and an injection bar (5) for feeding the material injected by the injection device (4) into the soil (2), characterized in that the apparatus comprises a meter (6) for measuring a feed vol- ume flow of the injectable material, and a control device (7) configured to control the apparatus (1) in response to the feed volume flow measured by the meter (6) having dropped below a determined limit value.
8. An apparatus as claimed in claim 7, characterized in that as a result of the response, the control unit (7) is configured to increase a feed pressure of the injection device (4).
9. An apparatus as claimed in claim 7, characterized in that the apparatus (1) comprises a pulling device (8) for pulling the injection bar (5) out of the soil (2), and that as a result of the response, the control unit (7) is configured to control the pulling device (8) to pull the injection bar (5) away from the soil (2).
10. An apparatus as claimed in claim 7, characterized in that as a result of the response, the control unit (7) is configured to control the injection device (4) to stop feeding the material to the injection bar (5).
PCT/FI2011/050103 2010-02-23 2011-02-07 Method and apparatus for injecting material into soil WO2011104431A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11746913.0A EP2539514A4 (en) 2010-02-23 2011-02-07 Method and apparatus for injecting material into soil
US13/580,744 US8956083B2 (en) 2010-02-23 2011-02-07 Method and apparatus for injecting material into soil
AU2011219673A AU2011219673A1 (en) 2010-02-23 2011-02-07 Method and apparatus for injecting material into soil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20105172 2010-02-23
FI20105172A FI20105172A (en) 2010-02-23 2010-02-23 Procedure and equipment for injecting soil material

Publications (2)

Publication Number Publication Date
WO2011104431A1 true WO2011104431A1 (en) 2011-09-01
WO2011104431A8 WO2011104431A8 (en) 2011-10-06

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US (1) US8956083B2 (en)
EP (1) EP2539514A4 (en)
AU (1) AU2011219673A1 (en)
FI (1) FI20105172A (en)
TW (1) TW201144532A (en)
WO (1) WO2011104431A1 (en)

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EP2539514A4 (en) 2017-02-22
FI20105172A0 (en) 2010-02-23
AU2011219673A1 (en) 2012-08-16
WO2011104431A8 (en) 2011-10-06
US20130051929A1 (en) 2013-02-28
FI20105172A (en) 2011-08-24
US8956083B2 (en) 2015-02-17
EP2539514A1 (en) 2013-01-02
TW201144532A (en) 2011-12-16

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