CN111549782B - Equipment for enlarging grouting reinforcement range - Google Patents
Equipment for enlarging grouting reinforcement range Download PDFInfo
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- CN111549782B CN111549782B CN202010406552.8A CN202010406552A CN111549782B CN 111549782 B CN111549782 B CN 111549782B CN 202010406552 A CN202010406552 A CN 202010406552A CN 111549782 B CN111549782 B CN 111549782B
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 25
- 239000011229 interlayer Substances 0.000 claims abstract description 61
- 239000002002 slurry Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 24
- 238000009792 diffusion process Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000011440 grout Substances 0.000 description 56
- 238000007569 slipcasting Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a device for enlarging a grouting reinforcement range. Comprises a grouting pipe, a grouting barrel and a grouting valve; a bottom plate and a top plate are arranged inside the bottom end of the grouting barrel, and the bottom plate, the top plate and the side wall of the grouting barrel form a slurry containing cavity; one end of the grouting pipe penetrates through the top plate; the side wall of the accommodating cavity is connected with the grouting valve in a sliding manner; the grouting valve comprises an outer sleeve, an interlayer sleeve assembly and an inner drill core which are sequentially nested and are in sliding connection along the axis direction. According to the invention, the telescopic grouting valve is arranged on the side wall of the grouting barrel, so that the radius of the grouting range of the grouting equipment is enlarged, the drilling density of grouting holes can be reduced, the drilling workload of construction personnel is reduced, the grouting reinforcement range is enlarged, the telescopic function of the grouting valve can be realized only by regulating and controlling the grouting pressure, and the operation is simple and convenient.
Description
Technical Field
The invention relates to the technical field of stratum grouting reinforcement, in particular to equipment for expanding a grouting reinforcement range.
Background
Karst is also called karst, and is a general name of a phenomenon caused by a comprehensive geological action of water on soluble rocks (calcium carbonate, sulfate, halogen rocks and the like) characterized by chemical corrosion, mechanical erosion and collapse action of water, carrying out, transferring and redepositing of substances.
The karst area is a geological disaster area, a large number of karst cave areas exist underground, and for projects such as pile foundation, foundation pit and underground tunnel excavation, the karst cave needs to be pretreated firstly to ensure the safety of construction and operation and avoid safety accidents such as hole collapse, water leakage and large-area collapse around the karst cave. According to geological drilling data, different treatment methods are respectively adopted according to the concrete conditions of various types of soil dissolving holes, on one hand, the expected treatment effect can be ensured, on the other hand, the cost can be effectively controlled, and the investment of engineering construction funds is reduced. In actual construction, a treatment method of floral tube grouting is generally adopted for a half-filled or full-filled soil dissolving cave with the height of more than 1.5m, namely, a drilling machine is adopted to form grouting holes at a designed position, the diameter of each formed hole is 91mm, and the depth of each formed hole is equal to the bottom of a bottom plate of the exposed soil dissolving cave within the treatment depth range. After pore forming, a hole protection pipe with the diameter of 60-80 mm is preferably arranged, 2 holes with the diameter of 2-3 cm are split at the position of the karst cave at intervals of 20cm, grouting is carried out according to the grouting principle of 'first dilution and then concentration and taking concentrated slurry as the main', and the grouting pressure is controlled to be 0.5-2.0 MPa until the karst cave is filled. If the cement slurry is not filled in a certain amount, double core pipes and water glass are adopted for double-liquid grouting plugging to meet the grouting pressure requirement. However, in the grouting process, due to the obstruction of the filler, the grout can only penetrate for grouting, the penetration range of the grout is generally within one meter, in order to fully grout a grouting area, a large number of dense drilling hole sites need to be arranged, and in such a way, the grouting holes need to be drilled with high density, so that not only is a large amount of time consumed, but also the economic cost and the labor amount of construction are increased.
In view of the above, there is a need for a device for enlarging the grouting reinforcement range to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide equipment for expanding a grouting reinforcement range, which aims to solve the problem of reducing high-density drilling and expanding the grouting reinforcement range.
In order to achieve the purpose, the invention provides equipment for expanding the grouting reinforcement range, which comprises a grouting pipe, a grouting barrel and a grouting valve, wherein the grouting pipe is connected with the grouting barrel; a bottom plate and a top plate are arranged inside the bottom end of the grouting barrel, and the bottom plate, the top plate and the side wall of the grouting barrel form a slurry containing cavity; one end of the grouting pipe penetrates through the top plate; the side wall of the accommodating cavity is connected with the grouting valve in a sliding manner; the grouting valve comprises an outer sleeve and an inner drill core which are sequentially nested and are connected in a sliding mode along the axial direction of the grouting valve.
Preferably, the outer wall of the first end of the outer sleeve is provided with a first outer sleeve slurry circulation hole, the inner wall of the second end of the outer sleeve is provided with a second outer sleeve slurry circulation hole, and the first outer sleeve slurry circulation hole and the second outer sleeve slurry circulation hole are communicated through a first slurry circulation channel in the cylinder wall of the outer sleeve.
Preferably, the first end of the outer sleeve is provided with a hole sealing sliding plate, the hole sealing sliding plate is in sliding connection with the outer wall of the outer sleeve, and one end of the hole sealing sliding plate is connected with the first end of the outer sleeve through a spring.
Preferably, the first end of the outer sleeve is provided with a limit ring; the second end of the outer sleeve is directed to the outside of the grouting barrel through the side wall of the grouting barrel.
Preferably, the side wall of the first end of the inner drill core is provided with an inner drill core slurry circulation hole, the second end of the inner drill core is provided with a grouting diffusion hole, and the inner drill core slurry circulation hole and the grouting diffusion hole are communicated through an inner slurry circulation cavity of the inner drill core.
Preferably, the second end of the inner core bit is of a conical structure.
Preferably, the grouting valve further comprises a sandwich sleeve assembly; the outer sleeve, the interlayer sleeve assembly and the inner drill core are sequentially nested and are connected in a sliding mode along the axial direction of the grouting valve.
Preferably, the interlayer sleeve assembly comprises at least one interlayer sleeve, and adjacent interlayer sleeves are nested with each other and are connected in a sliding manner along the axial direction of the interlayer sleeve assembly; the interlayer sleeve slurry circulation hole I is formed in the outer wall of the first end of the interlayer sleeve, the interlayer sleeve slurry circulation hole II is formed in the inner wall of the second end of the interlayer sleeve, and the interlayer sleeve slurry circulation hole I and the interlayer sleeve slurry circulation hole II are communicated through a slurry circulation channel II in the wall of the interlayer sleeve.
Preferably, the second end of the outer sleeve is provided with a first sliding tooth, and the outer wall of the interlayer sleeve assembly is provided with a first sliding groove matched with the first sliding tooth; and a second sliding tooth is arranged at the second end of the interlayer sleeve component, and a second sliding groove matched with the second sliding tooth is arranged on the outer wall of the inner drill core.
Preferably, the second end of the grouting barrel is formed by connecting a plurality of detachable sectional barrels; the grouting pipe is formed by connecting a plurality of detachable steel pipes.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, the telescopic grouting valve is arranged on the side wall of the grouting barrel, so that the radius of the grouting range of the grouting equipment is enlarged, the drilling density of grouting holes can be reduced, the drilling workload is reduced, and the grouting reinforcement range is enlarged.
(2) According to the invention, the grout flow holes are formed at the two ends of the outer sleeve, the interlayer sleeve component and the inner drill core, the hole sealing sliding plate is arranged at the first end of the outer sleeve, when the grouting valve does not extend to a specified position, the grout passage is in a closed state, when the grouting valve extends to the specified position, the grout passage is communicated, grout flows to the grouting port along the grouting passage for grouting, so that the interior of the grouting barrel is closed and pressure-maintained before the grouting valve does not extend completely, and grouting is started until the grouting valve extends to the specified position.
(3) According to the invention, after grouting is finished, the hole sealing sliding plate can plug the outer sleeve grout flow hole I through pressure relief, the grout accommodating cavity in the grouting barrel is sealed again, the grouting valve can be contracted and returned by applying negative pressure in the grout accommodating cavity of the grouting barrel, and the expansion of the grouting valve can be realized only by regulating and controlling grouting pressure, so that the operation is simple and convenient.
(4) In the invention, the grouting pipe and the grouting barrel can be lengthened through the sectional steel pipe and the sectional barrel, and the grouting pipe and the grouting barrel are suitable for grouting reinforcement in grouting holes with different depths.
(5) In the invention, the sliding teeth and the sliding grooves are arranged on the inner drill core, the interlayer sleeve assembly and the outer sleeve, so that the positioning among the inner drill core, the interlayer sleeve assembly and the outer sleeve can be ensured, each slurry circulation hole can be aligned when the grouting valve extends to a specified position, the inner drill core and the interlayer sleeve assembly can be limited, and the inner drill core and the interlayer sleeve assembly are prevented from being separated from the grouting valve when extending.
(6) According to the invention, the limiting ring is arranged at the first end of the outer sleeve to prevent the outer sleeve from being separated from the grouting barrel when sliding out.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an elevation view of an apparatus for enlarging the grout reinforcement scope of the present application;
FIG. 2 is a schematic cross-sectional view of an apparatus for enlarging the consolidation area of a grouting according to the present application;
FIG. 3 is a schematic view of the construction of a grouting valve;
FIG. 4 is a schematic cross-sectional view of a grouting valve;
FIG. 5 is an end view of a second end of the grouting valve;
FIG. 6 is a schematic structural view of an inner core;
FIG. 7 is a schematic cross-sectional view of an inner core;
FIG. 8 is a schematic structural view of the outer sleeve;
FIG. 9 is a schematic structural view of a sandwich sleeve;
the grouting device comprises a grouting pipe 1, a grouting pipe 2, a grouting barrel 2.1, a bottom plate 2.2, a top plate 2.3, a segmented cylinder 3, a grouting valve 3.1, an outer sleeve 3.1.1, an outer sleeve grout flow hole I, an outer sleeve grout flow hole II, a sealing sliding plate 3.1.5, a spring 3.1.6, a limiting ring 3.1.7, a sliding tooth I, a grout flow cylinder I, 3.1.9, a spring frame 3.1.10, a spring seat 3.1.11, a groove 3.2, an inner drill core, a grout flow hole II, a stress end 3.2, a grout diffusion hole 3.2.3, an inner grout flow cavity, a conical structure, 3.2.5, a sliding groove II, a 3.2.6, a stress end, a grouting component 3.2, a grouting diffusion hole II, a grouting sleeve 3.3.3.3.3.3.3.3.3.3.3.2.4, a sandwich layer, a grout flow hole II, a sliding groove, a sliding sleeve 3.6, a sliding groove 3.3.3.3.3.3.3.3.3.3.3.3.3, a sliding groove.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 to 9, the present embodiment is applied to karst grouting reinforcement, and the apparatus for expanding a grouting reinforcement range is disclosed.
An apparatus for expanding the reinforcing range of grouting, see fig. 1, comprises a grouting pipe 1, a grouting barrel 2 and a grouting valve 3; a bottom plate 2.1 and a top plate 2.2 are arranged inside the bottom end of the grouting barrel 2, and a slurry containing cavity is formed by the bottom plate 2.1, the top plate 2.2 and the side wall of the grouting barrel 2; one end of the grouting pipe 1 penetrates through the top plate 2.2 and is used for conveying grout to a grout accommodating cavity between the top plate 2.2 and the bottom plate 2.1; the side wall of the grout accommodating cavity is connected with a grouting valve 3 in a sliding mode, the grouting valve 3 is located between the top plate 2.2 and the bottom plate 2.1, and in the embodiment, the axis of the grouting valve 3 is perpendicular to the axis of the grouting barrel 2 and used for conveying grout to an area needing grouting reinforcement; referring to fig. 3 to 4, the grouting valve 3 comprises an outer sleeve 3.1, a sandwich sleeve assembly 3.3 and an inner drill core 3.2 which are sequentially nested and slidably connected along the axial direction of the grouting valve 3, and the grouting device is expanded in the grout conveying range through the expansion and contraction of the grouting valve 3.
Referring to fig. 3 to 4, the outer wall of the first end of the outer sleeve 3.1 is provided with an outer sleeve grout passage hole I3.1.1, the inner wall of the second end of the outer sleeve 3.1 is provided with an outer sleeve grout passage hole II 3.1.2, and the outer sleeve grout passage hole I3.1.1 and the outer sleeve grout passage hole II 3.1.2 are communicated through a grout passage channel I3.1.3 in the cylinder wall of the outer sleeve 3.1; in the present embodiment, referring to fig. 8, a pulp flowing cylinder I3.1.8 is arranged along the length direction of the outer sleeve 3.1, and the pulp flowing channel I3.1.3 is positioned inside the pulp flowing cylinder I3.1.8;
referring to fig. 3, a first end of an outer sleeve 3.1 is provided with a hole sealing sliding plate 3.1.4, the hole sealing sliding plate 3.1.4 is in sliding connection with the outer wall of the outer sleeve 3.1, the hole sealing sliding plate 3.1.4 is provided with a through hole, one end of the hole sealing sliding plate 3.1.4 is connected with the first end of the outer sleeve 3.1 through a spring 3.1.5, the first end of the outer sleeve 3.1 is provided with a spring holder 3.1.9 and a spring holder 3.1.10, the spring 3.1.5 is sleeved on the spring holder 3.1.9, the first end of the spring 3.1.5 abuts against the spring holder 3.1.10, the second end of the spring 3.1.5 is connected with the hole sealing sliding plate 3.1.4 to control the opening and closing of an outer sleeve grout flow hole one 3.1.1.1 of the outer sleeve 3.1, when the outer sleeve 3.1 is extended out of a grouting barrel 2 by grouting pressure, one end of the hole sealing sliding plate 3.1.4 abuts against the inner wall of the grouting barrel 2, the other end of the spring 3.1 slides to the outer sleeve 3.1.10 direction, and the outer sleeve 3.1 is aligned with the through hole sealing sliding plate 3.4; when grouting pressure is unloaded, the outer sleeve 3.1 retracts into the grouting barrel 2 under the action of grouting suction pressure, the hole sealing sliding plate 3.1.4 slides relative to the outer sleeve 3.1 under the action of the elastic force of the spring 3.1.5, the outer sleeve grout through hole I3.1.1 is staggered with the through hole of the hole sealing sliding plate 3.1.4, and the outer sleeve grout through hole I3.1.1 is closed.
Referring to fig. 3, the first end of the outer sleeve 3.1 is provided with a limit ring 3.1.6 for preventing the outer sleeve 3.1 from separating from the grouting barrel 2 when sliding out; the second end of the outer sleeve 3.1 is directed through the sidewall of the tub 2 to the outside of the tub 2.
The interlayer sleeve assembly 3.3 comprises at least one interlayer sleeve, and adjacent interlayer sleeves are nested with each other and are connected in a sliding manner along the axial direction of the interlayer sleeve assembly; in this embodiment, the interlayer sleeve assembly 3.3 includes an interlayer sleeve, the outer wall of the first end of the interlayer sleeve is provided with an interlayer sleeve slurry circulation hole one 3.3.1, the inner wall of the second end of the interlayer sleeve is provided with an interlayer sleeve slurry circulation hole two 3.3.2, the interlayer sleeve slurry circulation hole one 3.3.1 and the interlayer sleeve slurry circulation hole two 3.3.2 are communicated through a slurry circulation channel two 3.3.3 in the wall of the interlayer sleeve, in this embodiment, referring to fig. 9, the interlayer sleeve is provided with a slurry circulation channel two 3.3.6 along the length direction thereof, the slurry circulation channel two 3.3.3.3 is located inside the slurry circulation channel two 3.3.6, and the inner wall of the outer sleeve 3.1 is provided with a groove 3.1.11 matched with the slurry circulation channel two 3.3.6; by arranging the first pulp flowing cylinder 3.1.8 and the second pulp flowing cylinder 3.3.6, the channel sections of the first pulp flowing channel 3.1.3 and the second pulp flowing channel 3.3.3 can be enlarged, and the integral wall thickness of the outer sleeve 3.1 and the interlayer sleeve can be reduced;
referring to fig. 6 to 7, the side wall of the first end of the inner drill core 3.2 is provided with an inner drill core slurry flowing hole 3.2.1, the second end of the inner drill core 3.2 is provided with a grouting diffusion hole 3.2.2, and the inner drill core slurry flowing hole 3.2.1 and the grouting diffusion hole 3.2.2 are communicated through an inner slurry flowing cavity 3.2.3 of the inner drill core 3.2.
Referring to fig. 4 to 7, the second end of the inner core 3.2 is a conical structure 3.2.4 for penetrating the formation to perform grouting when the inner core 3.2 extends out, the first end of the inner core 3.2 is a planar force-bearing end 3.2.6, the force-bearing end 3.2.6 is pressed by grout, so that the inner core 3.2 and the interlayer sleeve component 3.3 slide relatively, and meanwhile, the planar force-bearing end 3.2.6 can seal the inner grout flow cavity 3.2.3 to prevent grout from flowing out from the first end of the inner core 3.2.
Referring to fig. 6 to 9, the second end of the outer sleeve 3.1 is provided with a sliding tooth one 3.1.7, and the outer wall of the interlayer sleeve component 3.3 is provided with a sliding groove one 3.3.4 matched with the sliding tooth one 3.1.7; the second end of the interlayer sleeve component 3.3 is provided with a sliding tooth II 3.3.6, the outer wall of the inner drill core 3.2 is provided with a sliding groove II 3.2.5 matched with the sliding tooth II 3.3.6, so that the slip casting valve 3 can stretch and limit, and the outer sleeve 3.1, the interlayer sleeve component 3.3 and the inner drill core 3.2 are prevented from separating when extending out.
Injecting grout into a grouting barrel 2 by using a rigid grouting pipe 1, enabling a stress end 3.2.6 of an inner drill core 3.2 to be stressed to extend out of the grouting barrel 2 so as to drive an interlayer sleeve component 3.3 and an outer sleeve 3.1 to extend out of the grouting barrel 2, when a grouting valve 3 extends to a limit position, a through hole on a hole sealing sliding plate 3.1.4 is aligned with an outer sleeve grout through hole one 3.1.1 of the outer sleeve 3.1, an outer sleeve grout through hole two 3.1.2 of the outer sleeve 3.1 is aligned with an interlayer sleeve grout through hole one 3.3.1 of the interlayer sleeve component 3.3, an interlayer sleeve grout through hole two 3.3.2 of the interlayer sleeve component 3.3 is aligned with an inner drill core grout through hole 3.2.1 of the inner drill core 3.2 so as to form a grout passage, enabling the grout to flow out of the grouting barrel 2 to a grouting position, grouting reinforcement is carried out of a stratum, when the grouting valve 3 does not extend to the limit position, the grout through holes on the interlayer sleeve component 3.2 are in a closed state, when the grouting valve 3 only comprises the outer sleeve 3.1 and the inner drill core 3.2, the sliding teeth I3.1.7 of the outer sleeve 3.1 are matched with the sliding grooves II 3.2.5 of the inner drill core 3.2, and the outer sleeve grout passage II 3.1.2 of the outer sleeve 3.1 is aligned with the inner drill core grout passage 3.2.1 of the inner drill core 3.2 to form a grout passage.
Referring to fig. 1 to 2, the top end of the grouting barrel 2 is formed by connecting a plurality of detachable sectional barrels 2.3 for increasing the height of the grouting barrel 2, in the embodiment, the sectional barrels 2.3 are connected through threads; the grouting pipe 1 is formed by connecting a plurality of detachable steel pipes and is used for increasing the height of the grouting pipe 1, and in the embodiment, the steel pipes of the grouting pipe 1 are connected through threads.
The lateral wall junction of slip casting valve 3 and slip casting bucket 2 is equipped with sealing device for 2 take place the thick liquid of slip casting bucket and reveal when preventing that slip casting valve 3 from stretching out.
A method for expanding the grouting reinforcement range adopts the equipment for expanding the grouting reinforcement range, and expands the grouting radius through the expansion and contraction of a grouting valve 3 in a karst stratum, so that the stratum range of grouting reinforcement is expanded, and the concrete steps are as follows:
s1: appointing a grouting position according to geological design, measuring and positioning a grouting hole, and drilling the grouting hole by using a drill carriage;
s2: assembling the grouting pipe 1 and the grouting barrel 2 to a required height, putting the assembled grouting equipment into the bottom of the grouting hole punched in the S1, wherein the upper parts of the grouting pipe 1 and the grouting barrel 2 are higher than the ground surface;
s3: grouting, namely grouting, grouting into a grout accommodating cavity of a grouting barrel 2 through a rigid grouting pipe 1, enabling grout to enable a grouting valve 3 to be pressed to extend out to penetrate into a stratum, enabling the first end of an outer sleeve 3.1 to be close to the inner wall of the grouting barrel 2, enabling a hole sealing sliding plate 3.1.4 to be extruded by the inner wall of the grouting barrel 2, overcoming the elasticity of a spring 3.1.5 to slide relative to the outer wall of the outer sleeve 3.1 until a through hole 9 of the hole sealing sliding plate 3.1.4, a grout flow hole I of the outer sleeve 3.1.1, a grout flow hole II of the outer sleeve 3.1.2, a grout flow hole I of an interlayer sleeve 3.3.1, a grout flow hole II of the interlayer sleeve 3.3.2, a grout flow hole I of an inner drill core 3.2.1 and a grouting diffusion hole 3.2.2 are communicated, and enabling the grout to flow into the stratum to be grouted and reinforced;
s4: stopping grouting after grouting is finished, enabling the hole sealing sliding plate 3.1.4 to slide relative to the outer sleeve 3.1 under the pulling force of the spring 3.1.5, sealing the outer sleeve grout flow hole I3.1.1, sucking grout in the grouting barrel 2 by using the grouting pipe 1, and forming negative pressure in the grouting barrel 2 to enable the grouting valve 3 to shrink;
s5: after the grouting valve 3 is contracted, rotating the grouting barrel 2 by 90 degrees, and repeating the steps S2-S3 for three times to complete grouting at the same horizontal height;
s6: after the same-depth stratum grouting is finished, the grouting equipment is lifted, and the section cylinder 2.3 and the steel pipe of the grouting pipe 1 are properly taken down for grouting;
s7: and (5) circulating the steps S3-S6 until grouting is completed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The equipment for expanding the grouting reinforcement range is characterized by comprising a grouting pipe (1), a grouting barrel (2) and a grouting valve (3); a bottom plate (2.1) and a top plate (2.2) are arranged inside the bottom end of the grouting barrel, and a slurry containing cavity is formed by the bottom plate, the top plate and the side wall of the grouting barrel; one end of the grouting pipe penetrates through the top plate; the side wall of the accommodating cavity is connected with the grouting valve in a sliding manner; the grouting valve comprises an outer sleeve (3.1) and an inner drill core (3.2) which are sequentially nested and are connected in a sliding manner along the axial direction of the grouting valve; the outer wall of the first end of the outer sleeve is provided with a first outer sleeve slurry circulation hole (3.1.1), the inner wall of the second end of the outer sleeve is provided with a second outer sleeve slurry circulation hole (3.1.2), and the first outer sleeve slurry circulation hole and the second outer sleeve slurry circulation hole are communicated through a first slurry circulation channel (3.1.3) in the cylinder wall of the outer sleeve; a hole sealing sliding plate (3.1.4) is arranged at the first end of the outer sleeve, the hole sealing sliding plate is in sliding connection with the outer wall of the outer sleeve, and one end of the hole sealing sliding plate is connected with the first end of the outer sleeve through a spring (3.1.5);
an inner drill core slurry circulation hole (3.2.1) is formed in the side wall of the first end of the inner drill core, a grouting diffusion hole (3.2.2) is formed in the second end of the inner drill core, and the inner drill core slurry circulation hole and the grouting diffusion hole are communicated through an inner slurry circulation cavity (3.2.3) of the inner drill core;
the grouting valve further comprises a sandwich sleeve assembly (3.3); the outer sleeve, the interlayer sleeve assembly and the inner drill core are sequentially nested and are in sliding connection along the axial direction of the grouting valve;
the interlayer sleeve assembly comprises at least one interlayer sleeve, and adjacent interlayer sleeves are nested with each other and are connected in a sliding manner along the axial direction of the interlayer sleeve assembly; the interlayer sleeve slurry circulation device is characterized in that a first interlayer sleeve slurry circulation hole (3.3.1) is formed in the outer wall of the first end of the interlayer sleeve, a second interlayer sleeve slurry circulation hole (3.3.2) is formed in the inner wall of the second end of the interlayer sleeve, and the first interlayer sleeve slurry circulation hole and the second interlayer sleeve slurry circulation hole are communicated through a second interlayer sleeve slurry circulation channel (3.3.3).
2. An apparatus for enlarging the reinforcement of a grouting according to claim 1, characterised in that the first end of the outer sleeve is provided with a stop collar (3.1.6); the second end of the outer sleeve is directed to the outside of the grouting barrel through the side wall of the grouting barrel.
3. An arrangement for enlarging the reinforcement of grouting according to claim 1, characterised in that the second end of the inner core is of a conical configuration (3.2.4).
4. The apparatus for enlarging the grouting reinforcement scope according to claim 1, wherein the second end of the outer sleeve is provided with a first sliding tooth (3.1.7), the outer wall of the sandwich sleeve assembly is provided with a first sliding groove (3.3.4) matched with the first sliding tooth; and a second sliding tooth (3.3.5) is arranged at the second end of the interlayer sleeve component, and a second sliding groove (3.2.5) matched with the sliding tooth is arranged on the outer wall of the inner drill core.
5. An apparatus for extending the reinforcement range of grouting according to claim 1, characterised in that the second end of the grouting barrel is connected by a plurality of detachable sectional barrels (2.3); the grouting pipe is formed by connecting a plurality of detachable steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406552.8A CN111549782B (en) | 2020-05-14 | 2020-05-14 | Equipment for enlarging grouting reinforcement range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406552.8A CN111549782B (en) | 2020-05-14 | 2020-05-14 | Equipment for enlarging grouting reinforcement range |
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| CN111549782A CN111549782A (en) | 2020-08-18 |
| CN111549782B true CN111549782B (en) | 2021-11-30 |
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| CN202010406552.8A Active CN111549782B (en) | 2020-05-14 | 2020-05-14 | Equipment for enlarging grouting reinforcement range |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115387322B (en) * | 2022-04-19 | 2023-08-04 | 西南石油大学 | Multi-angle grouting soil body reinforcing device for helping slurry global diffusion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101680106B1 (en) * | 2015-01-30 | 2016-11-28 | 이엑스티 주식회사 | The screw anchor pile with extended reinforcing plate for earth reinforcement |
| CN208293560U (en) * | 2017-11-13 | 2018-12-28 | 牟军东 | Grouting in soil mass device |
| CN108797561B (en) * | 2018-05-24 | 2020-08-04 | 广东诚创建设有限公司 | Grouting pipe for soft foundation and foundation reinforcing method using grouting pipe |
| KR20200025565A (en) * | 2018-08-30 | 2020-03-10 | 최홍용 | simultaneous grouting packer |
| CN209412805U (en) * | 2018-09-25 | 2019-09-20 | 深圳市鹏升建设有限公司 | A kind of foundation engineering high efficiency slurry pouring pipe |
| CN210266039U (en) * | 2019-08-13 | 2020-04-07 | 建研地基基础工程有限责任公司 | Active ejection type pile end rear grouting valve |
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