CA2583016C - Foam delivery system - Google Patents
Foam delivery system Download PDFInfo
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- CA2583016C CA2583016C CA2583016A CA2583016A CA2583016C CA 2583016 C CA2583016 C CA 2583016C CA 2583016 A CA2583016 A CA 2583016A CA 2583016 A CA2583016 A CA 2583016A CA 2583016 C CA2583016 C CA 2583016C
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- bore
- mixing chamber
- delivery system
- polymer resin
- foam delivery
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/32—Mixing; Kneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices
- B29B7/325—Static mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7404—Mixing devices specially adapted for foamable substances
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- 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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Lining And Supports For Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A foam delivery system comprises two delivery tubes providing a mixing chamber with a two-part polymeric foam. The mixing chamber mixes the two-part polymeric foam below a ground surface. A delivery manifold with delivery arms discharges the two-part polymer resin from the foam delivery system. A method of distributing a foam delivery systems comprises lowering a foam delivery system below a ground surface and discharging a polymer resin into the ground surface from a mixing chamber located below the ground surface. The mixing chamber discharges the polymer resin while the mixing chamber is lifted towards the ground surface, providing an expanding base of polymer resin. In that the chemicals are mixed at depth, that is, at the depth of the desired injection points, the possibility of premature setting and plugging of the delivery system is negated. An injector, comprising the mixing chamber and the delivery manifold, mixes the two-part chemical system at depth and then simultaneously distributes the mixed chemicals to up to six injection points at any desired depth.
Description
FOAM DELIVERY SYSTEM
BACKGROUND
[0001] This patent document relates to a system to deliver two-part expanding polymeric resins to below surface depths.
BACKGROUND
[0001] This patent document relates to a system to deliver two-part expanding polymeric resins to below surface depths.
[0002] In a typical two-part expanding polymeric resin system, the two chemical components are impingement-mixed at the surface through appropriate pumping/proportioner equipment and delivered through a single injection tube or probe. The depth to which the mixed components can be delivered is limited to: (a) the time it takes the mixed components to gel and "set-up" which is a function of the density/mix of the resin system and the temperature the resin is injected; (b) the back-pressure created at the end of the probe due to the expansion of the resin after it is injected; (c) if air-locks within the delivery probe occur;
and (d) the pressures the mixed material can be injected through a single probe.
and (d) the pressures the mixed material can be injected through a single probe.
[0003] The gel time of typical two-part expanding resin systems is generally very short and usually measured in seconds. The more reactive or faster is the expansion of the resin system, the quicker the gel time or set-up time. Similarly, within limits, as the temperature of the chemicals increase, the gel time or set-up time decreases. The gel time or set-up time often limits the depths to which an already-mixed polymeric resin system can be delivered before the material "sets up" and plugs the injection probe.
[0004] Once the mixed expanding resin is injected through the injection probe, a back-pressure often develops around the base of the area of the injection and the back-pressure slows down the rate of injection of the mixed resin, which causes the resin to prematurely set-up in the injection probe and plugs the probe.
[0005] If the soils at depth into which the expanding resin system is being injected into are very cohesive or saturated, the air within the injection probe could create an air-lock as the chemicals are being delivered from the surface through a single injection probe. At the very least, the back pressure caused by the air within the injection probe will slow the progress of the mixed two-part resin system and therefore minimize the amount of material that can be injected before the expanding resin system sets-up and plugs the probe
[0006] There is a direct relationship between the pressure at which the mixed resins are injected and the depth to which the resins can be delivered. The higher the pressure the faster the material can be delivered through a single injection probe and therefore the deeper and the longer the material can be delivered before the resin sets-up and plugs the injection probe.
Despite applied pressures in delivering the two-part resin through a single probe, eventually the probe will plug due to depth and/or back-pressure.
SUMMARY
Despite applied pressures in delivering the two-part resin through a single probe, eventually the probe will plug due to depth and/or back-pressure.
SUMMARY
[0007] This patent document addresses these and other difficulties with the prior art.
[0008] In an embodiment there is a method of delivering a polymer resin below ground surface. A bore that is accessible from the ground surface is created below the ground surface.
A mixing chamber, which is a component of a foam delivery system, is lowered into the bore.
A polymer resin is discharged from the mixing chamber of the foam delivery system into the bore. The mixing chamber is lifted within the bore and the polymer resin is discharged from the foam delivery system when the foam delivery system is lifted within the bore.
A mixing chamber, which is a component of a foam delivery system, is lowered into the bore.
A polymer resin is discharged from the mixing chamber of the foam delivery system into the bore. The mixing chamber is lifted within the bore and the polymer resin is discharged from the foam delivery system when the foam delivery system is lifted within the bore.
[0009] In an embodiment there is a foam delivery system for delivering an expanding polymer resin below a ground surface. The foam delivery system has a first delivery tube having a surface end and a mixing end and a second delivery tube having a surface end and a mixing end. A mixing chamber is attached to the respective mixing ends of each of the first and second delivery tubes. A first delivery arm and a second delivery arm provide a pathway from and connect to the mixing chamber for discharging the expanding polymeric resin from the mixing chamber.
[0010] In an embodiment there is a method of delivering an expanding polymer resin having a first component and a second component. An injector, which comprises a mixing chamber, is placed at a first sub-surface location. The first component and the second component of the expanding polymer resin are mixed in the mixing chamber to create a mixed polymer resin. The mixed polymer resin is discharged from the injector at the first sub-surface location creating a first foam discharge. The injector is moved to a different sub-surface location. The first component and the second component of the expanding polymer resin are mixed in the mixing chamber when the injector is at the different sub-surface location to create the mixed polymer resin. The mixed polymer resin is discharged from the injector at the different sub-surface location creating a second foam discharge, which expands into contact with the first foam discharge.
[0011] These and other aspects of the device and method are set out in the claims, which are incorporated here by reference.
BRIEF DESCRIPTION OF THE FIGURES
[00121 Embodiments will now be described with reference to the figures, in which like reference characters denote like elements, by way of example, and in which:
Fig. 1 is a partial section view of a foam delivery system in a screw pile;
Fig. 2 is a partial section view of a foam delivery system in a first sub-surface location in a bore; and Fig. 3 is a partial section view of a foam delivery system in a second sub-surface location in a bore.
DETAILED DESCRIPTION
[00131 In the claims, the word "comprising" is used in its inclusive sense and does not exclude other elements being present. The indefinite article "a" before a claim feature does not exclude more than one of the feature being present. Each one of the individual features described here may be used in one or more embodiments and is not, by virtue only of being described here, to be construed as essential to all embodiments as defined by the claims.
[0014] Figs. 1- 3 show embodiments of a foam delivery system 10. The foam delivery system 10 has a first delivery tube 12 and a second delivery tube 14 each having a surface end 30 and a mixing end 32. An injector 16 comprising a mixing chamber 22 is attached to the respective mixing ends 32 of each of the first and second delivery tubes 12, 14. A delivery manifold 24 comprising first and second delivery arms 52 connects to the mixing chamber 22 and provides a pathway for discharging the expanding polymeric resin from the mixing chamber 22. Air bleed valves 20 connect to the mixing ends 32 of the first and second delivery tubes 12, 14. The air bleed valves 20 are hard fixed into each of the first and second delivery tubes 12, 14 thereby preventing the possibility of air locks as the two components Component "A" and Component "B" are pumped through the delivery tubes 12, 14 to depth.
[0015] Figs. 2 and 3 show an embodiment of the foam delivery system 10 in operation.
The foam delivery system 10 delivers an expanding polymer resin having a first component (Component "A") and a second component (Component "B") into a sub-surface location through the first and second delivery tubes 12 and 14, respectively. The injector 16 is placed at a first sub-surface location, for example the position shown in Fig. 2. The first component and the second component of an expanding polymer resin are transported through the first and second delivery tubes 12, 14 to the mixing chamber 22 to create a mixed polymer resin 38.
The mixed polymer resin 38 is discharged from the injector 16 at the first sub-surface location to create a first foam discharge 40. The injector 16 is moved to a different sub-surface location as shown in Fig. 3. Again, the first and second components of the expanding polymer resin are mixed in the mixing chamber 22 when the injector 16 is at the different sub-surface location to create the mixed polymer resin. The mixed polymer resin is discharged from the injector 16 at the different sub-surface location creating a second foam discharge 42 so that the second foam discharge 42 expands into contact with the first foam discharge 40 as shown in Fig. 3.
[0016] To deliver foam below a ground surface 34 a bore 36 (Fig. 2) may be created below the ground surface 34 prior to operation of the foam delivery system 10. In the embodiment of Fig. 1, the foam delivery system 101ies within a screw pile having a drill stem wall 18 and a screw 28 at the base to bore into the ground. As shown in Fig. 2, the bore 36 is accessible from the ground surface 34. In the embodiment of Fig. 2 the mixing chamber 22 is lowered into the bore 36. A polymer resin is discharged from the mixing chamber 22 of the foam delivery system 10 into the bore 36. The foam mixing chamber 22 is lifted within the bore 36.
The polymer resin is discharged from the foam delivery system 10 when the foam delivery system 10 is lifted within the bore 36. For example, the foam delivery system 10 may continuously discharge the polymer resin as the foam delivery system 10 is lifted in the bore 36.
[0017] Fig. 1 shows an embodiment in which the pile stem 44 containing the foam delivery system 10 is a drill stem that can be driven, screwed or drilled to the desired depth.
Component "A" and Component "B" are independently pumped in the desired proportions through delivery tubes 12, 14 to the depth that the mixed polymer resin is to be injected. The polymer resin is injected to the exterior of the drill stem wall 18. Below the air bleed valves 20 are a mixing chamber 22 and delivery manifold 24 which together comprise the injector 16, or mixing /manifold delivery module. The delivery arms 52 of the delivery manifold 24 attach to a connecting tube 50 that attaches between a port 46 of the delivery arm 52 and a stem wall port 48 in the drill stem wall 18. The stem wall ports 48 in the drill stem wall 18 may be pre-attached to the connecting tubes 50 prior to being lowered into the ground. The air bleed valves 20 are each appropriately-sized conventional air bleed valves and are affixed to each of the delivery tubes 12, 14 to evacuate air from the delivery tubes 12, 14 as the two liquids, Components "A" and "B", are being pumped into the delivery tubes 12, 14.
[0018) Below the mixing end 32 of the delivery tubes 12, 14, the two Components "A"
and "B" combine together in the mixing chamber 22. The mixing chamber 22 comprises off-setting arms 26, which may be appropriately angled and spiraled to effect maximum mixing of the two chemicals coupled with opposing flow of the chemicals themselves.
[0019] In other embodiments, the pile stem may be a different form of hollow pipe. For example, the pile stem may be a drill stem or a conduit (0020] In other embodiment other expandable synthetic substances having similar properties may be used. The particular resin system used can be tailored to meet specific design applications relating to compressive strength, tensile strength, shear strength, flexural strength and other structural characteristics to meet the specific design application of the resin system for any given project. In some embodiments, for example, the polymeric resin system to be delivered at depth may be a high density, two-part, closed-cell, hydro-insensitive polymer resin, such as a polyurethane system.
[0021] In some embodiments, the delivery tubes or probes can be made of metal such as aluminum, copper, steel or other metal or, made of a synthetic material such as rigid or flexible plastics, fiberglass or other synthetic material. The delivery tubes
BRIEF DESCRIPTION OF THE FIGURES
[00121 Embodiments will now be described with reference to the figures, in which like reference characters denote like elements, by way of example, and in which:
Fig. 1 is a partial section view of a foam delivery system in a screw pile;
Fig. 2 is a partial section view of a foam delivery system in a first sub-surface location in a bore; and Fig. 3 is a partial section view of a foam delivery system in a second sub-surface location in a bore.
DETAILED DESCRIPTION
[00131 In the claims, the word "comprising" is used in its inclusive sense and does not exclude other elements being present. The indefinite article "a" before a claim feature does not exclude more than one of the feature being present. Each one of the individual features described here may be used in one or more embodiments and is not, by virtue only of being described here, to be construed as essential to all embodiments as defined by the claims.
[0014] Figs. 1- 3 show embodiments of a foam delivery system 10. The foam delivery system 10 has a first delivery tube 12 and a second delivery tube 14 each having a surface end 30 and a mixing end 32. An injector 16 comprising a mixing chamber 22 is attached to the respective mixing ends 32 of each of the first and second delivery tubes 12, 14. A delivery manifold 24 comprising first and second delivery arms 52 connects to the mixing chamber 22 and provides a pathway for discharging the expanding polymeric resin from the mixing chamber 22. Air bleed valves 20 connect to the mixing ends 32 of the first and second delivery tubes 12, 14. The air bleed valves 20 are hard fixed into each of the first and second delivery tubes 12, 14 thereby preventing the possibility of air locks as the two components Component "A" and Component "B" are pumped through the delivery tubes 12, 14 to depth.
[0015] Figs. 2 and 3 show an embodiment of the foam delivery system 10 in operation.
The foam delivery system 10 delivers an expanding polymer resin having a first component (Component "A") and a second component (Component "B") into a sub-surface location through the first and second delivery tubes 12 and 14, respectively. The injector 16 is placed at a first sub-surface location, for example the position shown in Fig. 2. The first component and the second component of an expanding polymer resin are transported through the first and second delivery tubes 12, 14 to the mixing chamber 22 to create a mixed polymer resin 38.
The mixed polymer resin 38 is discharged from the injector 16 at the first sub-surface location to create a first foam discharge 40. The injector 16 is moved to a different sub-surface location as shown in Fig. 3. Again, the first and second components of the expanding polymer resin are mixed in the mixing chamber 22 when the injector 16 is at the different sub-surface location to create the mixed polymer resin. The mixed polymer resin is discharged from the injector 16 at the different sub-surface location creating a second foam discharge 42 so that the second foam discharge 42 expands into contact with the first foam discharge 40 as shown in Fig. 3.
[0016] To deliver foam below a ground surface 34 a bore 36 (Fig. 2) may be created below the ground surface 34 prior to operation of the foam delivery system 10. In the embodiment of Fig. 1, the foam delivery system 101ies within a screw pile having a drill stem wall 18 and a screw 28 at the base to bore into the ground. As shown in Fig. 2, the bore 36 is accessible from the ground surface 34. In the embodiment of Fig. 2 the mixing chamber 22 is lowered into the bore 36. A polymer resin is discharged from the mixing chamber 22 of the foam delivery system 10 into the bore 36. The foam mixing chamber 22 is lifted within the bore 36.
The polymer resin is discharged from the foam delivery system 10 when the foam delivery system 10 is lifted within the bore 36. For example, the foam delivery system 10 may continuously discharge the polymer resin as the foam delivery system 10 is lifted in the bore 36.
[0017] Fig. 1 shows an embodiment in which the pile stem 44 containing the foam delivery system 10 is a drill stem that can be driven, screwed or drilled to the desired depth.
Component "A" and Component "B" are independently pumped in the desired proportions through delivery tubes 12, 14 to the depth that the mixed polymer resin is to be injected. The polymer resin is injected to the exterior of the drill stem wall 18. Below the air bleed valves 20 are a mixing chamber 22 and delivery manifold 24 which together comprise the injector 16, or mixing /manifold delivery module. The delivery arms 52 of the delivery manifold 24 attach to a connecting tube 50 that attaches between a port 46 of the delivery arm 52 and a stem wall port 48 in the drill stem wall 18. The stem wall ports 48 in the drill stem wall 18 may be pre-attached to the connecting tubes 50 prior to being lowered into the ground. The air bleed valves 20 are each appropriately-sized conventional air bleed valves and are affixed to each of the delivery tubes 12, 14 to evacuate air from the delivery tubes 12, 14 as the two liquids, Components "A" and "B", are being pumped into the delivery tubes 12, 14.
[0018) Below the mixing end 32 of the delivery tubes 12, 14, the two Components "A"
and "B" combine together in the mixing chamber 22. The mixing chamber 22 comprises off-setting arms 26, which may be appropriately angled and spiraled to effect maximum mixing of the two chemicals coupled with opposing flow of the chemicals themselves.
[0019] In other embodiments, the pile stem may be a different form of hollow pipe. For example, the pile stem may be a drill stem or a conduit (0020] In other embodiment other expandable synthetic substances having similar properties may be used. The particular resin system used can be tailored to meet specific design applications relating to compressive strength, tensile strength, shear strength, flexural strength and other structural characteristics to meet the specific design application of the resin system for any given project. In some embodiments, for example, the polymeric resin system to be delivered at depth may be a high density, two-part, closed-cell, hydro-insensitive polymer resin, such as a polyurethane system.
[0021] In some embodiments, the delivery tubes or probes can be made of metal such as aluminum, copper, steel or other metal or, made of a synthetic material such as rigid or flexible plastics, fiberglass or other synthetic material. The delivery tubes
12, 14 could be sectional with each section being welded, friction fitted, glued, screwed or joined together in some other fashion. The embodiments of Figs. 1 to 3 show schematic designs of the foam delivery system 10. In other embodiments, various orientations and shapes of the components of the foam delivery system are possible.
[0022] In some embodiments, the delivery tubes 12 and 14 can be, for example made of rigid metal, synthetic material or flexible metal through which each of the two component parts of the expanding resin will be individually pumped to the desired depth.
The delivery tubes 12 and 14, which for example, may have a'/4" - 3/4" inside diameter or larger, may be constructed from one continuous length or may be sectional and glued, welded, screwed, friction fit, or otherwise fit together to form a delivery tube of the desired length. The pumping system(s) may be, for example, a conventional pumping and/or proportioner equipment readily available in the marketplace capable of pumping the two components in their proper proportions into the delivery system described in this Patent document.
[0023] The foam delivery system 10 may be used in a variety of applications, for example for stabilizing and/or densifying base soils at extreme depths, for stabilizing around the base of screw-piles and other types of piles that have been screwed or placed at depth, for densifying base soils in earth quake prone zones as a prevention against liquefaction, for filling voids along vertical planes at depth in such cases as for example old mine tunnels and shafts, new mining tunnels and shafts, conduits, or any other structure resting along a vertical plane that requires back-filling and stabilization and for filling voids along horizontal planes in such cases as for example abandoned conduit, culverts, mined tunnels, or any other structure resting along a horizontal plane that requires void-filling.
[0024] Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.
[0022] In some embodiments, the delivery tubes 12 and 14 can be, for example made of rigid metal, synthetic material or flexible metal through which each of the two component parts of the expanding resin will be individually pumped to the desired depth.
The delivery tubes 12 and 14, which for example, may have a'/4" - 3/4" inside diameter or larger, may be constructed from one continuous length or may be sectional and glued, welded, screwed, friction fit, or otherwise fit together to form a delivery tube of the desired length. The pumping system(s) may be, for example, a conventional pumping and/or proportioner equipment readily available in the marketplace capable of pumping the two components in their proper proportions into the delivery system described in this Patent document.
[0023] The foam delivery system 10 may be used in a variety of applications, for example for stabilizing and/or densifying base soils at extreme depths, for stabilizing around the base of screw-piles and other types of piles that have been screwed or placed at depth, for densifying base soils in earth quake prone zones as a prevention against liquefaction, for filling voids along vertical planes at depth in such cases as for example old mine tunnels and shafts, new mining tunnels and shafts, conduits, or any other structure resting along a vertical plane that requires back-filling and stabilization and for filling voids along horizontal planes in such cases as for example abandoned conduit, culverts, mined tunnels, or any other structure resting along a horizontal plane that requires void-filling.
[0024] Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.
Claims (14)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method of delivering an expanding polymer resin having a first component and a second component comprising the steps of:
placing an injector at a first sub-surface location, the injector comprising a mixing chamber;
mixing the first component and the second component of the expanding polymer resin in the mixing chamber to create a mixed polymer resin;
discharging the mixed polymer resin from the injector at the first sub-surface location creating a first foam discharge;
moving the injector to a different sub-surface location;
mixing the first component and the second component of the expanding polymer resin in the mixing chamber when the injector is at the different sub-surface location to create the mixed polymer resin; and discharging the mixed polymer resin from the injector at the different sub-surface location creating a second foam discharge, the second foam discharge expanding into contact with the first foam discharge;
in which the injector discharges the mixed polymer resin continuously as the injector is moved to the different subsurface location.
placing an injector at a first sub-surface location, the injector comprising a mixing chamber;
mixing the first component and the second component of the expanding polymer resin in the mixing chamber to create a mixed polymer resin;
discharging the mixed polymer resin from the injector at the first sub-surface location creating a first foam discharge;
moving the injector to a different sub-surface location;
mixing the first component and the second component of the expanding polymer resin in the mixing chamber when the injector is at the different sub-surface location to create the mixed polymer resin; and discharging the mixed polymer resin from the injector at the different sub-surface location creating a second foam discharge, the second foam discharge expanding into contact with the first foam discharge;
in which the injector discharges the mixed polymer resin continuously as the injector is moved to the different subsurface location.
2 The method of delivering an expanding polymer resin of claim 1 in which the different sub-surface location is vertically higher than the first sub-surface location.
3 The method of delivering an expanding polymer resin of claim 1 or 2 further comprising the steps of drilling a borehole into the ground before the step of placing the injector attached to a mixing chamber at a sub-surface location and in which the first subsurface location and the different sub-surface location lie within the borehole.
4. The method of delivering an expanding polymer resin of any one of claims 1 to 3 in which the expanding polymer resin is polyurethane.
5. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore.
6. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
7. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
8. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore; and further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
9. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system.
10. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore.
11. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore.
12. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
13. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged continuously from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
14. A method of delivering a polymer resin below ground surface comprising the steps of:
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
creating a bore below the ground surface, the bore being accessible from the ground surface;
lowering a mixing chamber into the bore, the mixing chamber being a component of a foam delivery system;
discharging a polymer resin from the mixing chamber of the foam delivery system into the bore;
lifting the mixing chamber within the bore;
further discharging polymer resin from the mixing chamber of the foam delivery system after lifting the mixing chamber within the bore; and releasing excess air from the foam delivery system prior to the step of discharging a polymer resin from the foam delivery system;
in which the polymer resin is discharged in discrete steps from the foam delivery system as the foam delivery system is lifted within the bore; and in which the step of creating a bore below surface and being accessible from the ground surface is performed by the foam delivery system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2583016A CA2583016C (en) | 2007-03-13 | 2007-03-13 | Foam delivery system |
| US11/688,798 US20080223577A1 (en) | 2007-03-13 | 2007-03-20 | Foam delivery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2583016A CA2583016C (en) | 2007-03-13 | 2007-03-13 | Foam delivery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2583016A1 CA2583016A1 (en) | 2008-09-13 |
| CA2583016C true CA2583016C (en) | 2014-11-25 |
Family
ID=39747233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2583016A Active CA2583016C (en) | 2007-03-13 | 2007-03-13 | Foam delivery system |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20080223577A1 (en) |
| CA (1) | CA2583016C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1404104B1 (en) * | 2011-01-11 | 2013-11-08 | Mammina | MEANS FOR THE CONSOLIDATION OF LAND AND CONSOLIDATION PROCEDURE WHICH WAS USED BY SUCH MEANS |
| IT1403731B1 (en) * | 2011-02-03 | 2013-10-31 | Padoan | METHOD FOR CONSOLIDATING AND PROTECTING FUNDAMENTALS AND PACKAGES |
| ITPD20110235A1 (en) * | 2011-07-07 | 2013-01-08 | Geosec S R L | METHOD OF CONSOLIDATION OF FOUNDATION AND / OR BUILDING AREAS |
| CN103184737A (en) * | 2011-12-28 | 2013-07-03 | 上海市基础工程有限公司 | Grouting machine for post grouting under embedded rock geological condition |
| US9790655B1 (en) * | 2016-03-28 | 2017-10-17 | Polymer Technologies Worldwide, Inc. | System and method of stabilizing soil |
| CN105854701A (en) * | 2016-05-18 | 2016-08-17 | 黑龙江沃德能源工程技术有限公司 | Downhole variable-section rotating foam generating device and downhole foam generating method |
| CN116591147B (en) * | 2023-07-18 | 2023-09-08 | 中铁九局集团有限公司 | Steel pipe grouting device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000621A (en) * | 1975-06-19 | 1977-01-04 | The United States Of America As Represented By The Secretary Of The Interior | Remote sealing of mine passages containing flowing water |
| KR940008752B1 (en) * | 1985-10-15 | 1994-09-26 | 판 아메리카 보오에끼 가부시끼가이샤 | Grout injector |
| US5382116A (en) * | 1988-11-18 | 1995-01-17 | N.I.T. Co., Ltd. | Ground reforming method with a hardening material mixed and injected at a super high pressure and reforming device of same |
| US5256004A (en) * | 1990-07-31 | 1993-10-26 | Fondazioni Speciali, S.R.L. | Method of forming consolidated earth columns by injection and the relevant plant and column |
| US5342149A (en) * | 1992-08-31 | 1994-08-30 | Mccabe Brothers, Inc. | Long hole chemical grout injector system |
| US5968879A (en) * | 1997-05-12 | 1999-10-19 | Halliburton Energy Services, Inc. | Polymeric well completion and remedial compositions and methods |
| US6257803B1 (en) * | 1998-07-23 | 2001-07-10 | Mccabe Howard Wendell | Three component chemical grout injector |
| US6372037B1 (en) * | 2000-05-12 | 2002-04-16 | Lignotech Usa, Inc. | Set retarders for foamed cements |
| US6227294B1 (en) * | 2000-05-12 | 2001-05-08 | Halliburton Energy Services, Inc. | Methods of cementing subterranean zones |
| CA2390653A1 (en) * | 2002-07-02 | 2004-01-02 | Casey Moroschan | Sub-grade thermo-structural bridge |
| CA2443759C (en) * | 2003-10-17 | 2008-09-16 | Casey Moroschan | Foam pile system |
-
2007
- 2007-03-13 CA CA2583016A patent/CA2583016C/en active Active
- 2007-03-20 US US11/688,798 patent/US20080223577A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2583016A1 (en) | 2008-09-13 |
| US20080223577A1 (en) | 2008-09-18 |
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| EEER | Examination request |