CN111519604A - Deep-hole sleeve valve pipe grouting device and application method thereof - Google Patents
Deep-hole sleeve valve pipe grouting device and application method thereof Download PDFInfo
- Publication number
- CN111519604A CN111519604A CN202010364882.5A CN202010364882A CN111519604A CN 111519604 A CN111519604 A CN 111519604A CN 202010364882 A CN202010364882 A CN 202010364882A CN 111519604 A CN111519604 A CN 111519604A
- Authority
- CN
- China
- Prior art keywords
- grouting
- sleeve valve
- hole
- pipe
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000011440 grout Substances 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000011257 shell material Substances 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910000278 bentonite Inorganic materials 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 229920002472 Starch Polymers 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Geochemistry & Mineralogy (AREA)
- Paleontology (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a deep-hole sleeve valve pipe grouting device which comprises a grouting device, a pressurizing and sealing mechanism and a plurality of sleeve valve pipes, wherein the sleeve valve pipes are fixedly connected by virtue of sleeves in sequence, the connected sleeve valve pipes are used for being placed in a grouting hole, a plurality of grout outlets are formed in the sleeve valve pipes, a rubber valve is arranged at each grout outlet, the grouting device is placed in the sleeve valve pipes, the grouting device comprises a grout conveying pipe and two pressure cavities, the two pressure cavities can form a sealed cavity with the inner walls of the sleeve valve pipes after being expanded, the grout conveying pipe extends into the sealed cavity, the sealed cavity can be communicated with any one grout outlet, the grout conveying pipe is used for being communicated with a grout supply device, the pressurizing and sealing mechanism is communicated with the pressure cavities, and the pressurizing and sealing mechanism can enable the pressure cavities to be expanded. The sleeve valve pipe can be smoothly lowered to the bottom of the grouting hole, and the phenomena of slurry overflow and slurry leakage in the grouting process can be prevented.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a deep-hole sleeve valve pipe grouting device and an application method thereof.
Background
In the processes of foundation treatment and reinforcement, seepage prevention, deviation correction and the like, a grouting method is a common method, and currently, from the viewpoint of grouting mode and effect, sleeve valve pipe grouting is a method with wider applicability, because sleeve valve pipe grouting has the characteristics of sequential grouting, segmentation, quantification, intermittent grouting and repeated grouting, loose strata and compact strata can be grouted by adopting different grouting parameters, and the method is widely applied to projects such as seepage prevention and reinforcement of soft soil foundations, tunnels, roadbeds, dams and the like. However, in the process of grouting the sleeve valve tube, some defects still exist, if the strength between the sleeve valve tube connectors is low, the sleeve valve tube connectors are often bent in the lowering process, so that the grout stop plug cannot be smoothly lowered, even the conventional grout stop plug cannot be lowered to the bottom, the pressure borne by the conventional grout stop plug is about 1MPa, and when the grouting pressure is higher, the grout stop plug can be damaged, grout leaks along the tube wall of the sleeve valve tube, and the grouting effect is influenced.
Disclosure of Invention
The invention aims to provide a deep-hole sleeve valve pipe grouting device and an application method thereof, which are used for solving the problems in the prior art, enabling a sleeve valve pipe to be smoothly lowered to the bottom of a grouting hole and preventing the phenomena of slurry overflow and slurry leakage in the grouting process.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a deep-hole sleeve valve pipe grouting device which comprises a grouting device, a pressurizing and sealing mechanism and a plurality of sleeve valve pipes, wherein the sleeve valve pipes are fixedly connected by virtue of sleeves in sequence, the connected sleeve valve pipes are used for being placed in a grouting hole, a plurality of grout outlets are formed in the sleeve valve pipes, a rubber valve is arranged at each grout outlet, the grouting device is placed in the sleeve valve pipes, the grouting device comprises a grout conveying pipe and two pressure cavities, the two pressure cavities can form a sealed cavity with the inner walls of the sleeve valve pipes after being expanded, the grout conveying pipe extends into the sealed cavity, the sealed cavity can be communicated with any one grout outlet, the grout conveying pipe is used for being communicated with a grout supply device, the pressurizing and sealing mechanism is communicated with the pressure cavities, and the pressurizing and sealing mechanism can enable the pressure cavities to be expanded.
Preferably, the orifice of the grouting hole is provided with a fixing assembly, the fixing assembly comprises a rectangular frame and two rectangular switch boards, one side edge of each switch board is hinged to the rectangular frame, the two switch boards can be spliced into a rectangular whole, a circular clamping hole is formed in the center of each spliced switch board, and the diameter of each clamping hole is smaller than that of each sleeve valve pipe.
Preferably, the bottom of sleeve valve pipe is provided with the end cap, fixed mounting has the elasticity collet on the end cap, the elasticity collet is the rectangle structure, the four corners department of elasticity collet is provided with rings, wear to be equipped with the lifting rope in the rings, the lifting rope hole has all been seted up on the switch board, the lifting rope can pass the lifting rope hole and fix lifting rope hole department.
Preferably, the outer wall of the sleeve valve pipe is sleeved with a plurality of annular frames, a plurality of metal fins are fixedly arranged on the annular frames, the plurality of metal fins are uniformly distributed along the annular shape of the annular frames, and the metal fins can be in contact with the inner wall of the grouting hole; the adjacent annular frames are spaced by 3-5 m.
Preferably, the sleeve is a PPR sleeve, the length of the sleeve valve tube embedded into the sleeve is 5 times greater than the diameter of the sleeve valve tube, the slurry outlet is arranged on the wall of the sleeve valve tube where the sleeve is not sleeved, and the sleeve is connected with the sleeve valve tube by a sealant in an adhesion manner.
Preferably, the pressurization closing mechanism comprises a water pressing device and a water pressing pipe, the water pressing device, the water pressing pipe and the pressure cavity are sequentially communicated, the water pressing device injects water into the pressure cavity through the water pressing pipe, a water pressure gauge for monitoring the pressure in the pressure cavity is arranged on the water pressing device, and a deformation monitor for monitoring the deformation of the pressure cavity is arranged on the water pressing device.
Preferably, the grout supply device comprises a grouting pump and a grouting pipe, the grouting pump is communicated with the grouting pipe in sequence, and the grouting pump is remotely connected with a remote controller.
Preferably, a mud pit is further arranged and communicated with the grouting hole; and a steel pipe is inserted into the grouting hole, is positioned on the outer side of the sleeve valve pipe and extends to the bottom of the grouting hole.
The invention also provides an application method of the deep-hole sleeve valve pipe grouting device, which comprises the following steps:
s1: drilling a grouting hole, and drilling a vertical grouting hole by using an engineering drilling machine through the operation of a mud retaining wall drill collar;
s2: measuring the verticality, namely measuring the verticality of the grouting hole by adopting an inclinometer;
s3: installing the sleeve valve pipes, connecting a plurality of sections of the sleeve valve pipes in sequence by using the sleeves, and lowering the sleeve valve pipes to a preset depth;
s4: preparing a shell material on site, wherein the shell material consists of cement, bentonite and water, and the mixture ratio of the components is as follows: bentonite: water is 1:1.2:1.7, and the compressive strength of the shell material after hardening for 3 days is not less than 0.5 MPa;
s5: cleaning the grouting hole, pouring the casing material, putting a steel pipe to the hole bottom of the grouting hole, wherein the steel pipe is positioned at the outer side of the sleeve valve pipe, and pouring the casing material into the steel pipe to replace the slurry at the hole bottom of the grouting hole;
s6: lowering the grouting device to a specified depth;
s7: hardening the shell material for 3 days, wherein the compressive strength of the shell material reaches 0.5 MPa;
s8: grouting, namely starting the pressurizing and sealing mechanism to inject pressure to the pressure cavities to expand the pressure cavities, forming a sealed cavity between the expanded two pressure cavities and the inner wall of the sleeve valve pipe, enabling the pressure of the pressurizing and sealing mechanism to inject pressure to the pressure cavities to reach a set value, starting the slurry supply device to supply grouting slurry to the slurry conveying pipe, and sequentially performing grouting in a designated area through the slurry outlet and the grouting hole which are communicated with the sealed cavity, wherein the flow of the slurry is 1-3m3, and the grouting pressure of the slurry is equal to the grouting pressure;
s9: segmented grouting, wherein when the grouting of one stage is finished, the pressurizing and sealing mechanism is closed, the pressure cavity is contracted, the grouting device is lifted upwards to the other stage, and the grouting of the other stage is started until the grouting operation in the whole grouting hole range is finished;
s10: and before the grouting slurry in the grouting hole is completely condensed, pulling out the sleeve valve pipe, and refilling the grouting slurry in the grouting hole until the grouting hole is full.
Preferably, the proportion of each component in the shell material is cement: bentonite: 1:1.5:1.8, or cement: bentonite: water-1: 1.7: 1.9.
Compared with the prior art, the invention has the following technical effects:
the sleeve valves are fixedly connected with each other by the sleeve in sequence, so that the connection strength is ensured, the sleeve valves are smoothly lowered to the bottom of the grouting hole, the pressure cavity of the grouting device is pressurized by the pressurizing and sealing mechanism in the grouting process to form a stable pressure area, the function of a grout stop plug in the prior art is replaced, the function of the grout stop plug is realized, different grout stop pressures can be provided, the grouting requirement is met, and the phenomena of grout overflow and grout leakage are prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a deep-hole sleeve valve tube grouting device according to the invention;
FIG. 2 is a top view of the securing assembly of the present invention;
FIG. 3 is a schematic view of a sleeve valve tube and a positioning frame according to the present invention;
FIG. 4 is a schematic view of the sleeve valve tube of the present invention;
FIG. 5 is a schematic view of the connection between the sleeve valve tube and the elastic bottom support of the present invention;
FIG. 6 is a schematic view of the connection of the sleeve valve tube to the slurry supply apparatus according to the present invention;
FIG. 7 is a schematic view of the connection of the grouting device and the pressurized closure mechanism of the present invention;
1. the device comprises a water pressure meter 2, a deformation monitor 3, a water pressing device 4, a water pressing pipe 5, a hinge 6, a switch board 7, an annular frame 8, a lifting rope 9, a sleeve 10, a pressure cavity 11, a casing material 12, an elastic bottom support 13, a lifting ring 14, a plug 15, a slurry outlet 16, a slurry injector 17, a slurry injection hole 18, a sleeve valve pipe 19, a steel pipe 20, a slurry injection pipe 21, a remote controller 22, a slurry injection pump 23 and a slurry pool.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1-7: the embodiment provides a deep-hole sleeve valve pipe grouting device, which comprises a grouting device 16, a pressurizing and sealing mechanism and a plurality of sleeve valve pipes 18, wherein the sleeve valve pipes 18 are fixedly connected with one another by using a sleeve 9 in sequence, the connected sleeve valve pipes 18 are used for being placed in a grouting hole 17, the sleeve valve pipes 18 are respectively provided with a plurality of grout outlets 15, each grout outlet 15 is provided with a rubber valve, one grout outlet 15 is arranged at intervals of 33cm along the length direction of each sleeve valve pipe 18, the grouting device 16 is placed in each sleeve valve pipe 18 and comprises a grout conveying pipe and two pressure chambers 10, the pressure chambers 10 are of a concave structure, preferably, the outer surfaces of the two pressure chambers 10 are spliced into a complete cylinder, the inner surfaces of the two pressure chambers 10 are spliced into an elliptical surface, the two pressure chambers 10 can form a cavity together with the inner wall of each sleeve valve pipe 18 after being expanded, the grout conveying pipe extends into the sealed cavity, and the sealed cavity can be communicated with any grout outlet 15, the slurry delivery pipe is used for communicating with a slurry supply device, and the pressurizing and sealing mechanism is communicated with the pressure cavity 10 and can expand the pressure cavity 10. Utilize sleeve pipe 9 fixed connection between a plurality of sleeve valve pipes 18 in proper order to guarantee joint strength, make sleeve valve pipe 18 transfer smoothly to grouting hole 17 bottom, at the slip casting in-process, utilize the pressurization closing mechanism to pressurize grouting device 16's pressure chamber 10, in order to form stable pressure zone, replace the function that only starch fills up and realize only starch and fill up among the prior art, and can provide different only starch pressure, in order to satisfy the slip casting demand, prevent to appear excessive thick liquid hourglass thick liquid phenomenon.
As shown in fig. 2, a fixing assembly is arranged at the orifice of the injection hole 17 in this embodiment, the fixing assembly includes a rectangular frame and two rectangular switch boards 6, one side of each of the two switch boards 6 is hinged to the rectangular frame by a hinge 5, the two switch boards 6 can be spliced into a rectangular whole, a circular clamping hole is formed at the center of each of the two spliced switch boards 6, and the diameter of the clamping hole is slightly smaller than or equal to that of the sleeve valve pipe 18. Firstly opening the two switch boards 6, after lowering one section of sleeve valve pipe 18, closing the switch boards 6, clamping the sleeve valve pipe 18 by a clamping hole formed between the two switch boards 6, connecting the other section of sleeve valve pipe 18 by using the sleeve 9, opening the switch boards 6 again, lowering the sleeve valve pipe 18, and sequentially connecting and lowering the sleeve valve pipes 18 of other sections until the sleeve valve pipes 18 are lowered to the bottom of the grouting hole 17.
As shown in fig. 3, in this embodiment, a plug 14 is disposed at the bottom end of the sleeve valve tube 18, an elastic base 12 is fixedly mounted on the plug 14, the elastic base 12 has a rectangular structure, rings 13 are disposed at four corners of the elastic base 12, a lifting rope is inserted into the rings 13, lifting rope holes 8 are formed in the switch board 6, the lifting rope can pass through the lifting rope holes 8 and be fixed at the lifting rope holes 8, when the sleeve valve tube 18 is placed below through the elastic base 12 and the lifting rope, one sleeve valve tube can be placed at each time, and the lifting rope can be fixed at the lifting rope holes 8 to fix the sleeve valve tube 18, so as to be in butt joint with other sleeve valve tubes 18. The outer wall of the sleeve valve pipe 18 is sleeved with a plurality of annular frames 7, a plurality of metal fins are fixedly arranged on the annular frames 7 and are uniformly distributed along the ring shape of the annular frames 7, and the metal fins can be contacted with the inner wall of the grouting hole 17; the interval between the adjacent annular frames 7 is 3-5m, preferably 3m, after the annular frames 7 are sleeved on the sleeve valve pipes 18, the verticality and the centering degree of the sleeve valve pipes 18 can be ensured, grouting can be performed within the grouting range of each stage during grouting, and therefore the grouting effect can be better improved.
As shown in fig. 4, in the present embodiment, the sleeve 9 is a PPR sleeve, the length of the sleeve valve tube 18 embedded in the sleeve 9 is greater than 5 times the diameter of the sleeve valve tube 18, the grout outlet 15 is disposed on the wall of the sleeve valve tube 18 where the sleeve 9 is not sleeved, and the sleeve 9 is adhesively connected to the sleeve valve tube 18 by using a sealant. Therefore, the connection strength is ensured, the requirement that the compressive strength is not less than 4MPa is met, the sealing performance of the connection part can be ensured, the sleeve valve pipes 18 of adjacent sections are fixedly connected in a sealing way, and the slurry overflow and leakage are prevented.
As shown in fig. 6 and 7, the pressurizing and closing mechanism in this embodiment includes a water pressurizing device 3 and a water pressurizing pipe, the water pressurizing device 3, the water pressurizing pipe and the pressure chamber 10 are sequentially communicated, the water pressurizing device 3 injects water into the pressure chamber 10 through the water pressurizing pipe, a water pressure gauge 1 for monitoring the internal pressure of the pressure chamber 10 is arranged on the water pressurizing device 3, and a deformation monitor 2 for monitoring the deformation of the pressure chamber 10 is arranged on the water pressurizing device 3. The grout supply device comprises a grouting pump 22 and a grouting pipe 20, the grouting pump 22, the grouting pipe 20 and the grout conveying pipe are sequentially communicated, and the grouting pump 22 is remotely connected with a remote controller 21. Starting the pressurizing and sealing mechanism, injecting water into the pressure cavities 10 by the water pressurizer 3 through the water pressurizing pipe to enable the upper pressure cavity 10 and the lower pressure cavity 10 to expand, monitoring the deformation condition of the pressure cavities 10 according to the deformation monitor 2 to ensure that the pressure cavities 10 can form sealed cavities with the inner wall of the sleeve valve pipe 18, determining the injection pressure (namely, the water injection pressure) to be 3MPa from the water pressure meter 1, setting the grouting pressure to be 3MPa at the remote controller 21, and setting the grouting flow to be 1m3The grouting pump 22 is started to perform grouting to ensure that the grout at the grout outlet 15 is limited within the grouting area.
The embodiment can also be provided with a mud pit 23, the mud pit 23 is communicated with the grouting hole 17, as shown in fig. 1, the mud pit 23 is connected with the grouting hole 17 through a mud discharging pipe, the mud discharging pipe extends to the top of the grouting hole 17, a steel pipe 19 is inserted into the grouting hole 17, the steel pipe 19 is positioned at the outer side of the sleeve valve pipe 18, and the concrete steel pipe 19 extends to the bottom of the grouting hole 17. By injecting the jacket material 11 into the steel pipe 19, the slurry at the bottom of the grouting hole 17 can be displaced, and the bottom of the grouting hole 17 can be cleaned.
Example two
The embodiment provides an application method of a deep-hole sleeve valve pipe grouting device in the first embodiment, which comprises the following steps:
s1: drilling a grouting hole 17, and drilling a vertical grouting hole 17 through the operation of a mud retaining wall drill collar by using an engineering drilling machine; the engineering drilling machine is any existing equipment capable of drilling the grouting hole 17;
s2: perpendicularity measurement, namely performing perpendicularity measurement on the grouting hole 17 by adopting an inclinometer, wherein the inclinometer is any existing equipment capable of measuring the perpendicularity of the drilled grouting hole 17;
s3: installing sleeve valve pipes 18, sequentially connecting a plurality of sleeve valve pipes 18 by using the sleeve 9, and lowering the sleeve valve pipes 18 to a preset depth; the specific operation comprises the steps that the annular frame 7 is arranged on the outer wall of the sleeve valve tube 18, so that the annular frame 7 is tightly attached to the outer wall of the sleeve valve tube 18, one end of a metal fin on the annular frame 7 is tightly attached to the inner wall of the grouting hole 17, and the annular frame 7 is arranged every 3m along the outer wall of the sleeve valve tube 18; after the annular frame 7 is installed, the sleeve valve pipes 18 are placed on the elastic bottom support 12, a lifting rope is arranged in a penetrating mode, the switch plate 6 is opened, the sleeve valve pipes 18 are placed into the grouting holes 17 and placed to a certain degree, the switch plate 6 is closed, meanwhile, the lifting rope is fixed to the lifting rope holes 8, the first sleeve valve pipe 18 is placed, then the annular frame 7 is installed on the second sleeve valve pipe 18 according to the method, the two sleeve valve pipes 18 are connected through the sleeve 9, the length of the two sleeve valve pipes 18 entering the sleeve 9 is not less than 5 times of the diameter of the sleeve valve pipes 18, the sleeve 9 and the sleeve valve pipes 18 are adhered through the sealant, then the switch plate 6 is opened, the sleeve valve pipes 18 are placed, sleeves are placed in a descending mode in sequence, and the like until the sleeve valve pipes 18 reach the preset depth;
s4: preparing a shell material 11 on site, wherein the shell material 11 consists of cement, bentonite and water, and the mixture ratio of each component is cement: bentonite: water is 1:1.2:1.7, and the compressive strength of the shell material 11 after hardening for 3 days is not less than 0.5 MPa;
s5: cleaning a grouting hole 17 and pouring casing materials 11, lowering a steel pipe 19 to the hole bottom of the grouting hole 17, positioning the steel pipe 19 at the outer side of a sleeve valve pipe 18, pouring the casing materials 11 into the steel pipe 19 to replace mud at the hole bottom of the grouting hole 17, and discharging the replaced mud into a mud pit 23 through a mud discharge pipe;
s6: the grouting device 16 is lowered, the grouting device 16 is lowered to a specified depth, namely the grouting hole 17 at which stage needs to be grouted, and the grouting device 16 is lowered to which stage;
s7: hardening the shell material 11 for 3 days, and meeting the requirement that the compressive strength reaches 0.5 MPa;
s8: grouting, starting a pressurizing sealing mechanism to inject pressure into pressure cavities 10 to expand the pressure cavities, specifically, a water pump 3 injects water into the pressure cavities 10 through a water pumping pipe, a sealed cavity is formed between the expanded two pressure cavities 10 and the inner wall of a sleeve valve pipe 18, the pressure of the pressurizing sealing mechanism for injecting pressure into the pressure cavities 10 reaches a set value, a slurry supply device is started to supply grouting slurry to a slurry conveying pipe, the grouting slurry sequentially passes through a slurry outlet 15 and a slurry injecting hole 17 which are communicated with the sealed cavity to perform grouting in a designated area, and the flow rate of the slurry is 1-3m3The grouting pressure of the slurry is equal to the injection pressure; the specific operation is as follows: the water pressurizer 3 injects water into the pressure cavities 10 through the water pressurizing pipe to enable the upper pressure cavity 10 and the lower pressure cavity 10 to expand, deformation conditions of the pressure cavities 10 are monitored according to the deformation monitor 2 to ensure that the pressure cavities 10 can form closed cavities with the inner walls of the sleeve valve pipes 18, injection pressure (namely, water injection pressure) is determined to be 3MPa from the water pressure meter 1, grouting pressure is set to be 3MPa at the remote controller 21, and grouting flow is set to be 1m3Starting a grouting pump 22 for grouting to ensure that the grout of the grout outlet 15 is limited in the range of the grouting area;
s9: segmented grouting, wherein when one-stage grouting is finished, the pressurizing and sealing mechanism is closed, the pressure cavity 10 is contracted, the grouting device 16 is lifted to the other stage, and grouting of the other stage is started until grouting operation in the range of the whole grouting hole 17 is finished;
s10: before the grouting slurry in the grouting holes 17 is completely coagulated, the sleeve valve pipe 18 is pulled out, and the grouting slurry is refilled in the grouting holes 17 until the grouting holes are full.
Compared with the traditional sleeve valve tube 18 grouting process, the method has the following beneficial effects;
1) the sleeve valve tubes 18 are fixedly connected with each other through the sleeve 9 in sequence, and the length of the sleeve valve tubes 18 embedded into the sleeve 9 is set, so that the connection strength is guaranteed, the tensile strength of the sleeve valve tubes 18 is improved, and the sleeve valve tubes 18 can be smoothly placed to the bottom of the grouting holes 17.
2) In the grouting process, the pressurizing sealing mechanism is utilized to pressurize the pressure cavity 10 of the grouting device 16 so as to form a stable pressure area, replace a grout stop plug in the prior art and realize the function of the grout stop plug, and provide different grout stop pressures so as to meet the grouting requirement and prevent the phenomena of grout overflow and leakage.
3) By utilizing the annular frame 7, the verticality and the centering degree of the downward placement of the sleeve valve pipe 18 are ensured, and the grouting can be performed in the grouting range of each stage during grouting, so that the grouting effect is better improved.
4) The casing material 11 is used for replacing the slurry at the bottom of the grouting hole 17, so that the hole bottom is cleaned, and the problem that the hole bottom is difficult to clean is solved.
EXAMPLE III
The embodiment provides an application method of the deep-hole sleeve valve tube grouting device in the first embodiment, which is different from the second embodiment only in that: the proportion of each component in the shell material 11 is cement: bentonite: 1:1.5:1.8, or cement: bentonite: the water is 1:1.7:1.9, so that the requirements of various working conditions are met.
It should be noted that, in the embodiment, the hardware structure of the deep-hole sleeve valve pipe grouting device and the application method thereof is only optimized and improved, and the control system of the remote controller is not optimized and improved.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a deep hole sleeve valve pipe slip casting device which characterized in that: including slip casting ware, pressurization closing mechanism and a plurality of sleeve valve pipe, it is a plurality of utilize sleeve pipe fixed connection in proper order between the sleeve valve pipe, a plurality of after the connection sleeve valve pipe is used for placing in the injected hole, a plurality of grout outlets have all been seted up on the sleeve valve pipe, each grout outlet department all is provided with the rubber valve, the slip casting ware place in the sleeve valve pipe, the slip casting ware includes defeated thick liquid pipe and two pressure chambeies, two can with after the pressure chamber inflation can form the closed chamber with the inner wall of sleeve valve pipe, defeated thick liquid pipe extends in the closed chamber, the closed chamber can with arbitrary grout outlet intercommunication, defeated thick liquid pipe is used for and supplies thick liquid device intercommunication, pressurization closing mechanism with the pressure chamber intercommunication, pressurization closing mechanism can make the pressure chamber inflation.
2. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the orifice of slip casting hole department is provided with fixed subassembly, fixed subassembly includes rectangular frame and two rectangle switch boards, two one side of switch board all with rectangular frame is articulated, two the switch board can splice into a rectangle whole, two after the concatenation the center department of switch board forms a circular shape card hole, the diameter in card hole is less than or equal to the diameter of sleeve valve pipe.
3. The deep-hole sleeve valve pipe grouting device according to claim 2, characterized in that: the bottom of sleeve valve pipe is provided with the end cap, fixed mounting has the elasticity collet on the end cap, the elasticity collet is the rectangle structure, the four corners department of elasticity collet is provided with rings, wear to be equipped with the lifting rope in the rings, the lifting rope hole has all been seted up on the switch board, the lifting rope can pass the lifting rope hole is fixed lifting rope hole department.
4. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the outer wall of the sleeve valve pipe is sleeved with a plurality of annular frames, a plurality of metal fins are fixedly arranged on the annular frames and are uniformly distributed along the ring shape of the annular frames, and the metal fins can be contacted with the inner wall of the grouting hole; the adjacent annular frames are spaced by 3-5 m.
5. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the sleeve pipe is a PPR sleeve pipe, the length of the sleeve valve pipe embedded into the sleeve pipe is larger than 5 times of the diameter of the sleeve valve pipe, the slurry outlet is formed in the pipe wall of the sleeve valve pipe where the sleeve pipe is not sleeved, and the sleeve pipe is connected with the sleeve valve pipe in an adhesion mode through sealant.
6. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the pressurization closing mechanism comprises a water pressurizer and a water pressurizing pipe, the water pressurizer, the water pressurizing pipe and the pressure cavity are sequentially communicated, the water pressurizer injects water into the pressure cavity through the water pressurizing pipe, a water pressure gauge for monitoring the pressure in the pressure cavity is arranged on the water pressurizer, and a deformation monitor for monitoring the deformation of the pressure cavity is arranged on the water pressurizer.
7. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the grout supply device comprises a grouting pump and a grouting pipe, the grouting pump is connected with the grouting pipe in sequence, and the grouting pump is remotely connected with a remote controller.
8. The deep-hole sleeve valve pipe grouting device according to claim 1, characterized in that: the sleeve valve sleeve is characterized by further comprising a mud pit, the mud pit is communicated with the grouting hole, a steel pipe is inserted into the grouting hole, and the steel pipe is located on the outer side of the sleeve valve pipe and extends to the bottom of the grouting hole.
9. A method of using the deep-hole sleeve valve grouting device according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1: drilling a grouting hole, and drilling a vertical grouting hole by using an engineering drilling machine through the operation of a mud retaining wall drill collar;
s2: measuring the verticality, namely measuring the verticality of the grouting hole by adopting an inclinometer;
s3: installing the sleeve valve pipes, connecting a plurality of sections of the sleeve valve pipes in sequence by using the sleeves, and lowering the sleeve valve pipes to a preset depth;
s4: preparing a shell material on site, wherein the shell material consists of cement, bentonite and water, and the mixture ratio of the components is as follows: bentonite: water is 1:1.2:1.7, and the compressive strength of the shell material after hardening for 3 days is not less than 0.5 MPa;
s5: cleaning the grouting hole, pouring the casing material, putting a steel pipe to the hole bottom of the grouting hole, wherein the steel pipe is positioned at the outer side of the sleeve valve pipe, and pouring the casing material into the steel pipe to replace the slurry at the hole bottom of the grouting hole;
s6: lowering the grouting device to a specified depth;
s7: hardening the shell material for 3 days, wherein the compressive strength of the shell material reaches 0.5 MPa;
s8: grouting, starting the pressurizing and sealing mechanism to inject pressure to the pressure cavities to expand the pressure cavities, forming the sealed cavity between the expanded two pressure cavities and the inner wall of the sleeve valve pipe, enabling the pressure of the pressurizing and sealing mechanism to inject pressure to the pressure cavities to reach a set value, starting the slurry supply device to supply grouting slurry to the slurry conveying pipe, and sequentially performing grouting in a designated area through the slurry outlet and the grouting hole which are communicated with the sealed cavity, wherein the flow of the slurry is 1-3m3The grouting pressure of the slurry is equal to the injection pressure;
s9: segmented grouting, wherein when the grouting of one stage is finished, the pressurizing and sealing mechanism is closed, the pressure cavity is contracted, the grouting device is lifted upwards to the other stage, and the grouting of the other stage is started until the grouting operation in the whole grouting hole range is finished;
s10: and before the grouting slurry in the grouting hole is completely condensed, pulling out the sleeve valve pipe, and refilling the grouting slurry in the grouting hole until the grouting hole is full.
10. The application method of the deep-hole sleeve valve pipe grouting device according to claim 9, characterized in that: the shell material comprises the following components in percentage by weight: bentonite: 1:1.5:1.8, or cement: bentonite: water-1: 1.7: 1.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364882.5A CN111519604A (en) | 2020-04-30 | 2020-04-30 | Deep-hole sleeve valve pipe grouting device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364882.5A CN111519604A (en) | 2020-04-30 | 2020-04-30 | Deep-hole sleeve valve pipe grouting device and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111519604A true CN111519604A (en) | 2020-08-11 |
Family
ID=71906384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010364882.5A Pending CN111519604A (en) | 2020-04-30 | 2020-04-30 | Deep-hole sleeve valve pipe grouting device and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111519604A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022082953A1 (en) * | 2020-10-23 | 2022-04-28 | 国网甘肃省电力公司经济技术研究院 | Grouting system and grouting method based on pressure-adjustable special grouting moving cavity |
| CN115404846A (en) * | 2022-09-23 | 2022-11-29 | 中国建筑第五工程局有限公司 | Deviation rectifying device and method for tunnel deformation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164548A (en) * | 1999-12-08 | 2001-06-19 | Chem Grouting Co Ltd | Chemical grouting method |
| CN102828513A (en) * | 2012-08-07 | 2012-12-19 | 中建三局第一建设工程有限责任公司 | Tool type operating platform for pile foundation tremie extension |
| CN204456128U (en) * | 2015-01-21 | 2015-07-08 | 河北省建筑科学研究院 | A kind of delamination pour slurry rifle |
| CN105696598A (en) * | 2016-01-29 | 2016-06-22 | 山东大学 | Device suitable for elevation-angle grouting of sleeve valve pipe and using method thereof |
| CN209368831U (en) * | 2018-10-12 | 2019-09-10 | 中国电建集团航空港建设有限公司 | Mini-valve tube locating support |
| CN110685716A (en) * | 2019-10-12 | 2020-01-14 | 中铁隧道局集团有限公司 | Sleeve valve pipe grouting method after boulder blasting treatment |
-
2020
- 2020-04-30 CN CN202010364882.5A patent/CN111519604A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164548A (en) * | 1999-12-08 | 2001-06-19 | Chem Grouting Co Ltd | Chemical grouting method |
| CN102828513A (en) * | 2012-08-07 | 2012-12-19 | 中建三局第一建设工程有限责任公司 | Tool type operating platform for pile foundation tremie extension |
| CN204456128U (en) * | 2015-01-21 | 2015-07-08 | 河北省建筑科学研究院 | A kind of delamination pour slurry rifle |
| CN105696598A (en) * | 2016-01-29 | 2016-06-22 | 山东大学 | Device suitable for elevation-angle grouting of sleeve valve pipe and using method thereof |
| CN209368831U (en) * | 2018-10-12 | 2019-09-10 | 中国电建集团航空港建设有限公司 | Mini-valve tube locating support |
| CN110685716A (en) * | 2019-10-12 | 2020-01-14 | 中铁隧道局集团有限公司 | Sleeve valve pipe grouting method after boulder blasting treatment |
Non-Patent Citations (3)
| Title |
|---|
| 任立志等: "《地铁叠线盾构区间隧道下穿高铁轨道群施工关键技术》", 30 June 2018, 中国铁道出版社 * |
| 姚激等: "《质子治疗中心工程策划、设计与施工管理》", 31 December 2018, 同济大学出版社 * |
| 黄生根等: "《基础工程原理与方法》", 28 February 2009, 中国地质大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022082953A1 (en) * | 2020-10-23 | 2022-04-28 | 国网甘肃省电力公司经济技术研究院 | Grouting system and grouting method based on pressure-adjustable special grouting moving cavity |
| CN115404846A (en) * | 2022-09-23 | 2022-11-29 | 中国建筑第五工程局有限公司 | Deviation rectifying device and method for tunnel deformation |
| CN115404846B (en) * | 2022-09-23 | 2024-01-26 | 中国建筑第五工程局有限公司 | Deviation correcting device and method for tunnel deformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20100079506A (en) | Post grouting system of cast-in-place concrete piles and the post grouting method for increasing end bearing capacity at pile base | |
| CN111519604A (en) | Deep-hole sleeve valve pipe grouting device and application method thereof | |
| CN103510501A (en) | Method for preventing blocking and water gushing in recharge well | |
| CN109629845A (en) | Concrete structure seam areas leakage treatment device and its construction method | |
| CN111305193B (en) | Construction method for pouring concrete pile by using telescopic guide pipe | |
| CN110500117B (en) | Anti-seepage plugging method for grouting hole of shield segment | |
| CN206110124U (en) | Bored concrete pile stake end post grouting device | |
| CN114232611A (en) | Filling device and filling method for karst cave in pile hole | |
| CN110206071A (en) | A kind of diaphram wall seam reinforcement means and device | |
| CN110106884A (en) | A kind of grouting construction method | |
| CN112942339A (en) | Inverted grouting method suitable for anchoring engineering of tophole roof rock mass | |
| CN107218010B (en) | Water plugging bridge plug for damaged drilling sleeve and double-bridge plug type water plugging method | |
| RU2379472C1 (en) | Method of well's horizontal borehole part repair insulation works | |
| CN214940165U (en) | Single-tube sectional type uniform grouting device | |
| CN116122260A (en) | Construction method for grouting sleeve valve pipe to strengthen foundation | |
| CN114909164A (en) | Self-locking type layered surrounding rock large-deformation control anchor rod and construction method thereof | |
| CN112726620A (en) | Single-tube sectional type uniform grouting device | |
| CN110029999B (en) | Orifice closed hole internal circulation deep-seated part soluble rock grouting method | |
| CN208346871U (en) | Block type lifts deformation observing device | |
| CN113152467A (en) | Grouting method for easily collapsed stratum | |
| JP2838390B2 (en) | Strainer tube and its installation method, and chemical solution injection method using strainer tube | |
| CN214695683U (en) | Raft board precipitation well structure | |
| CN220620152U (en) | Slope rock stratum reinforcing device | |
| CN114232653B (en) | Fracturing grouting anchoring grading construction device and method | |
| CN219472133U (en) | Grouting pipe or hollow grouting anchor cable and anchor rod tail end plugging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200811 |