CN112627167A - Roadbed underground grouting reinforcement equipment for road construction - Google Patents
Roadbed underground grouting reinforcement equipment for road construction Download PDFInfo
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- CN112627167A CN112627167A CN202011509908.7A CN202011509908A CN112627167A CN 112627167 A CN112627167 A CN 112627167A CN 202011509908 A CN202011509908 A CN 202011509908A CN 112627167 A CN112627167 A CN 112627167A
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- 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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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- 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
- E01C3/04—Foundations produced by soil stabilisation
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Abstract
The invention discloses roadbed underground grouting reinforcement equipment for road construction, which comprises a workbench and an adjusting tank, wherein a feeding hopper is fixed on one side of the workbench, and a stirring blade is connected on one side of a stirrer; the grouting grooves are formed in the grouting rod and the drill bit, and the adjusting groove close to the first hydraulic rod is formed in one side of the workbench. This road bed underground slip casting reinforcement equipment that road construction used, be provided with slider and rotatory piece, when needing adjustment drilling angle, start the third motor, make the third motor drive the second pivot and rotate, the second pivot is rotated and is driven first hydraulic stem rotation, the rotatory slip casting pole of taking of first hydraulic stem is rotatory at the adjustment tank, the orientation that makes the drill bit of slip casting pole one end changes, start the second motor after that, the second motor drives the threaded rod and rotates, the threaded rod rotates and drives the slider and remove along the guide bar, the slider removes the position that makes the drill bit be close to needs drilling gradually and fixes a position, be convenient for adjust the orientation of drill bit.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to roadbed underground grouting reinforcement equipment for road construction.
Background
Grouting (also called grouting) technology has been widely used in the construction of road projects as one of the most common anti-seepage construction technologies in road construction. The grouting method is a method for injecting certain curable grout into cracks or pores of a road foundation to improve the physical and mechanical properties of the road foundation, the grouting aims at preventing seepage, stopping leakage, reinforcing and correcting the deflection of a building, the grouting mechanism comprises filling grouting, permeating grouting, compacting grouting and splitting grouting, the grouting material comprises granular grout and chemical grout, the granular grout mainly is grouting material (also called grouting material), the chemical grout comprises silicate and high-molecular grout, the road construction grouting reinforcing device is one of common devices in the road construction process, and the grouting material enters the foundation grouting reinforcing device through a delivery pump and is injected into underground rock soil through a drill hole.
Epoxy resin is widely used in various fields due to its excellent mechanical properties, water resistance, corrosion resistance, freezing resistance and damping resistance. The epoxy grouting material is a multi-component solution grouting material which is prepared by using epoxy resin as a main component, reducing the viscosity by using a diluent, and then adding a curing agent and other auxiliary agents. The epoxy grouting material has low viscosity and strong groutability, is easy to be injected into cracks of a roadbed, and is solidified into a consolidation body with excellent mechanical property through in-situ polymerization reaction, so the epoxy grouting material is suitable for reinforcing construction of roads.
The underground grouting reinforcement equipment at present is the most inconvenient use, the fresh degree of slip casting material before the slip casting is not convenient for keep, be not convenient for adjust drilling angle, be not convenient for dismantle and overhaul the pipeline, be not convenient for clear up slip casting pole inside, remain slip casting material easily and solidify and influence next time and use, earth gets into the slip casting pole from the slip casting groove when preventing to drill inconvenient, cause to block up and influence the slip casting, consequently, will improve present underground grouting reinforcement equipment.
In addition, in the prior art, in order to pursue environmental protection, epoxy resin is often diluted only by a low-molecular glycidyl ether diluent, and in this case, the dilution effect is poor, so that the epoxy resin is difficult to maintain the initial low viscosity, which is far inferior to that of a furfural acetone dilution system. In addition, the mechanical strength of a consolidation body formed by the existing epoxy grouting material after construction is enough, but the toughness is relatively unsatisfactory.
Disclosure of Invention
The invention aims to provide roadbed underground grouting reinforcement equipment for road construction, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a roadbed underground grouting reinforcement device for road construction comprises a workbench 1 and an adjusting groove 42, wherein a feeding hopper 2 is fixed on one side of the workbench 1, and a grouting material is contained in the feeding hopper 2 and is a cement-based grouting material or an epoxy grouting material; go into 2 one sides of hopper and be connected with fortune material mechanism 3, fortune material mechanism 3 one side is connected with agitator 4, and agitator 5 is installed to 4 one sides of agitator, and 5 one sides of agitator are connected with stirring leaf 6.
A discharge port 7 is formed in the stirring barrel 4 close to the stirring machine 5, a first motor 8 is mounted on one side of the stirring barrel 4 close to the discharge port 7, a first rotating shaft 9 is connected to one side of the first motor 8, a first shielding plate 10 is connected to one side of the first rotating shaft 9 close to the discharge port 7, and a material storage chamber 11 is formed in the stirring barrel 4 close to the first shielding plate 10;
a pumping pump 12 is installed on one side of the stirring barrel 4 close to the material storage chamber 11, a hose 13 is connected to one side of the pumping pump 12, a fixing plate 14 is fixed on one side of the workbench 1 close to the stirring barrel 4, a second motor 15 is installed inside the fixing plate 14, a threaded rod 16 is connected between the second motor 15 and the fixing plate 14, a guide rod 17 is connected to one side of the fixing plate 14 close to the threaded rod 16, and a sliding block 18 is connected between the threaded rod 16 and the guide rod 17.
A grout inlet pipe 28 is fixed on one side of the grouting rod 25 close to the piston 27, one end of the hose 13 close to the grout inlet pipe 28 is connected with a hard pipe 29, one side of the grout inlet pipe 28 is connected with a threaded sleeve 30, one sides of the grout inlet pipe 28 and the threaded sleeve 30 are provided with a notch 31, one side of the hard pipe 29 close to the notch 31 is connected with a convex block 32, and one side of the grout inlet pipe 28 close to the hard pipe 29 is connected with a rubber ring 33.
Grouting groove 34 has all been seted up with drill bit 26 inside to grouting rod 25, the one end of drill bit 26 that is close to grouting groove 34 is connected with third pivot 35, one side of third pivot 35 is connected with second shielding plate 36, be connected with torsional spring 41 between third pivot 35 and the second shielding plate 36, recess 37 has been seted up to second shielding plate 36 one side, recess 37 internally mounted has spring 38, spring 38 one end is connected with fixture block 39, draw-in groove 40 has been seted up to the one end of drill bit 26 that is close to fixture block 39, the adjustment tank 42 that is close to first hydraulic stem 22 is seted up in one side of workstation 1.
Preferably: four groups of stirring blades 6 are arranged, the stirring blades 6 form a rotating structure through a stirrer 5, and the stirring blades 6 are in sliding connection with the stirring barrel 4.
Preferably: two groups of first shielding plates 10 are arranged, the first shielding plates 10 form a rotating structure through the first rotating shaft 9, and the external dimension of the first shielding plates 10 is matched with the internal dimension of the discharging port 7.
Preferably: the slide block 18 is in threaded connection with the threaded rod 16, and the slide block 18 is in sliding connection with the guide rod 17.
Preferably: the rotating block 21 and the first hydraulic rod 22 are integrated, and the rotating block 21 and the third motor 19 form a rotating structure through the second rotating shaft 20.
Preferably: the fourth motor 23 constitutes a telescopic structure by the first hydraulic lever 22, and the second hydraulic lever 24 constitutes a rotary structure by the fourth motor 23.
Preferably: the grouting rod 25 and the drill 26 are of an integral structure, the piston 27 forms a telescopic structure through the second hydraulic rod 24, the maximum depth distance of the second hydraulic rod 24 is not less than the length of the grouting groove 34, and the piston 27 is in sliding connection with the grouting groove 34.
Preferably: the grout inlet pipe 28 is connected with the hard pipe 29 in a sliding mode, the hard pipe 29 and the projection 32 are in an integral structure, the projection 32 is connected with the notch 31 in a sliding mode, and the grout inlet pipe 28 is connected with the threaded sleeve 30 in a threaded mode.
Preferably: the second shielding plate 36 and the drill 26 form a rotating structure through the third rotating shaft 35, and the acting force of the torsion spring 41 on the second shielding plate 36 is greater than the friction force between the latch 39 and the slot 40.
Preferably: the fixture block 39 and the groove 37 form a telescopic structure through a spring 38, and the external dimension of the fixture block 39 is matched with the internal dimension of the clamping groove 40.
Preferably: the epoxy grouting material comprises the following components: epoxy resin, furan resin, diluent, curing agent and accelerator, wherein the diluent comprises fatty alcohol glycidyl ether and ethylene dithiocarbonate; the curing agent comprises ethylenediamine and phenylenediamine; the promoter includes protein glue, alkalis, aluminum salt/magnesium salt/zinc salt/calcium salt, and glyoxal/glutaraldehyde.
Preferably: the weight parts of the components are as follows: 50-70 parts of epoxy resin; 20-30 parts of furan resin; 40-100 parts of a diluent; 20-50 parts of a curing agent; 10-30 parts of an accelerator.
Preferably: the diluent comprises the following components in parts by weight: 20-50 parts of fatty alcohol glycidyl ether and 20-50 parts of ethylene dithiocarbonate; the curing agent comprises the following components in parts by weight: 10-20 parts of ethylenediamine and 10-30 parts of phenylenediamine; the accelerator comprises the following components in parts by weight: 5-15 parts of protein glue, 2-5 parts of alkalis, 1-5 parts of aluminum salt/magnesium salt/zinc salt/calcium salt and 2-5 parts of glyoxal/glutaraldehyde.
Preferably: the epoxy resin is bisphenol A type epoxy resin or bisphenol F type epoxy resin; the furan resin is furfuryl alcohol phenolic resin or furfuryl alcohol urea-formaldehyde resin; the fatty alcohol glycidyl ether is ethylene glycol glycidyl ether, glycerol glycidyl ether or trimethylolpropane glycidyl ether.
Preferably: the cement-based grouting material can be a cement-based-water glass double-liquid grouting material; the cement is ordinary portland cement or superfine cement.
Preferably: the cement-based-water glass double-liquid grouting material is a combination of portland cement, fly ash, bentonite, aluminum chloride, sodium zeolite and water glass; 50-70 parts of Portland cement, 20-30 parts of fly ash, 5-10 parts of bentonite, 5-10 parts of sodium zeolite and 0.5-1 part of aluminum chloride solution (1moL/L) are mixed by mass to obtain the grouting material. The volume ratio of the grouting material to the water glass is 1: (5-6).
This road bed underground grouting reinforcement equipment that road construction used's beneficial effect is:
the beneficial effects are that: the drilling machine is provided with the sliding block and the rotating block, when the drilling angle needs to be adjusted, the third motor is started to drive the second rotating shaft to rotate, the second rotating shaft drives the first hydraulic rod to rotate, the first hydraulic rod rotates to drive the grouting rod to rotate in the adjusting groove, so that the direction of a drill bit at one end of the grouting rod is changed, then the second motor is started to drive the threaded rod to rotate, the threaded rod rotates to drive the sliding block to move along the guide rod, and the sliding block moves to enable the drill bit to be gradually close to the position needing to be drilled to be positioned, so that the direction of the drill bit is convenient to adjust;
beneficial effects 2: before the drill bit drills a hole, the hose needs to be disassembled, the threaded sleeve is rotated to enable the threaded sleeve to perform threaded sliding relative to the grout inlet pipe until a notch on one side of the threaded sleeve is aligned with a notch on one side of the grout inlet pipe, so that the threaded sleeve does not block the bump, the hard pipe on one end of the hose is pulled out of the grout inlet pipe, and the bump slides out through the notch when the grout inlet pipe is pulled out, so that the pipeline is convenient to disassemble;
beneficial effect 3: the invention is provided with a second shielding plate, after the hose is disassembled and the drilling angle is adjusted, a first hydraulic rod and a fourth motor are started simultaneously, so that the fourth motor drives a second hydraulic rod, a grouting rod and a drill bit to rotate, the first hydraulic rod drives the drill bit to go deep underground, when the drill bit drills underground, the second shielding plate can prevent soil blocks and broken stones from entering a grouting groove and prevent blockage, and when grouting materials are injected, the impact force of the grouting materials on the second shielding plate is far greater than the sum of the friction force between a clamping block and a clamping groove and the acting force applied to a third rotating shaft by a torsion spring, so that the second shielding plate is opened for grouting;
beneficial effect 4: the grouting material mixing device is provided with a material conveying mechanism and a stirring barrel, grouting material ingredients are added into a feeding hopper and are conveyed into the stirring barrel through the material conveying mechanism, then a stirrer is started to enable stirring blades to rotate, the grouting material is stirred, the grouting material is continuously stirred in the stirring barrel to keep a motion state so as to prevent static solidification, a first motor is started until the grouting material mixing device is needed to be used, the first motor drives a first rotating shaft to rotate, the first rotating shaft rotates to drive a first baffle plate to leave a discharge port, so that fresh grouting material enters a material storage chamber from the discharge port, and then the grouting material in the material storage chamber is immediately pumped by a pump to be used so as to keep the freshness of the grouting material;
the beneficial effects are that: the invention is provided with a third rotating shaft and a torsion spring, after grouting is finished, a second hydraulic rod is started, the second hydraulic rod drives a piston to move along a grouting groove, the piston can scrape grouting materials on the inner wall of the grouting groove to move together in the moving process, when the piston extrudes a second shielding plate, the pressure applied to the second shielding plate is greater than the sum of the friction force between a clamping block and the clamping groove and the acting force applied to the third rotating shaft by the torsion spring, the clamping block can compress the spring to enter a groove from the clamping groove, then the second shielding plate rotates through the third rotating shaft, and then the piston drives the scraped grouting materials to be discharged from the tail end of the grouting groove, so that the cleaning is facilitated.
The beneficial effects are that: the epoxy grouting material disclosed by the invention takes epoxy resin and furan resin as main components, takes a mixture of fatty alcohol glycidyl ether and dithio ethylene carbonate as a dilution system, is more environment-friendly compared with a traditional furfural acetone dilution system, and the permeability of the fatty alcohol glycidyl ether is further improved by adding the ethylene carbonate, so that the low viscosity of the epoxy resin and furan resin grouting material can be ensured, the grouting time is sufficient, and the grouting property is ensured. Furan resin can improve the corrosion resistance of the consolidated body after grouting, but its curing is difficult. According to the invention, the furan resin is cured in a curing system of epoxy resin, ethylenediamine and phenylenediamine, so that the curing reaction rate is greatly improved, and the curing system can also modify the furan resin, thereby enhancing the corrosion resistance and toughness of the cured body after grouting. Glyoxal and glutaraldehyde are aldehydes that are non-volatile at ambient temperatures and are referred to as non-toxic aldehydes. The accelerator system is used as a regulating and controlling auxiliary agent in the epoxy grouting material, and the protein adhesive can be modified by epoxy resin and furan resin under the system, so that the adhesive property of the accelerator system is more suitable for a low-viscosity system of the epoxy resin, small cracks are remained particularly after one-time grouting, the reinforcing effect is obvious, and the stability, the strength and the corrosion resistance of a concreted body after grouting are further improved.
The beneficial effects are that: the invention can select different grouting material combinations according to the condition of the subgrade crack width, and takes 0.2mm as a boundary point: when the leakage crack is larger than 0.2mm, firstly adopting cement-based grouting material for grouting, and then adopting epoxy grouting material for grouting, so that the crack is firstly initially filled with the cement-based grouting material, but the fine crack can still be left under the influence of the properties of the cement-based grouting material, the epoxy grouting material is used for secondary grouting filling, and the fine crack is filled by utilizing the characteristics of strong toughness and good groutability of the epoxy grouting material. When the leakage crack is less than or equal to 0.2mm, the epoxy grouting material is directly adopted for grouting, and the tiny crack is directly filled and repaired. Therefore, the original cracks can be repaired, weak layers are further connected between the impervious layer and the concrete layer and between pouring layers of the impervious layer, the impervious strength of the roadbed is enhanced, the roadbed impervious layer has excellent reinforcing effect, and the quality of seepage-proofing reinforcing construction is ensured.
The beneficial effects are that: according to different grouting material combinations, different pressures are selected, the determination of grouting pressure is an important link for ensuring smooth grouting, and 0.2mm is taken as a boundary point: when the leakage crack is larger than 0.2mm, the cement-based grouting material adopts medium-pressure grouting, the pressure is 1/2 of the maximum allowable grouting pressure, the slurry under the pressure can not only keep the diffusion range to cover the possible leakage range of the crack position, but also save the slurry and ensure the economical efficiency of grouting operation; the epoxy grouting material adopts low-pressure grouting, the low-pressure grouting pressure is the minimum value of 1/5 and 0.6MPa of the maximum allowable grouting pressure, the grouting pressure is ensured to be as small as possible, and the epoxy grouting material is enabled to be diffused to the range which can be reached by cracks as far as possible and also diffused to the positions between the impermeable layer and the concrete layer and between the pouring layers of the impermeable layer to form weak layers. When the leakage crack is less than or equal to 0.2mm, epoxy grouting material is directly adopted for low-pressure grouting, the low-pressure grouting pressure is the maximum value of 1/5 and 0.6MPa of the maximum allowable grouting pressure, and the minimum pressure is not adopted at this time, because the leakage degree is lower under the condition of smaller crack, the seepage-proofing and reinforcing effect can be met by using slightly higher pressure, and meanwhile, the construction efficiency can be ensured.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of a fixing plate according to the present invention;
FIG. 3 is a partial structural view of a second shielding plate according to the present invention;
FIG. 4 is an enlarged view of the part A of the present invention;
FIG. 5 is a schematic view of the present invention at a position B with a partially enlarged structure;
FIG. 6 is an enlarged view of a portion of the present invention at C;
FIG. 7 is a schematic view of the enlarged structure of the invention at D.
In the figure: 1. a work table; 2. feeding into a hopper; 3. a material conveying mechanism; 4. a stirring barrel; 5. a blender; 6. stirring blades; 7. a discharging port; 8. a first motor; 9. a first rotating shaft; 10. a first shielding plate; 11. a material storage chamber; 12. a pump; 13. a hose; 14. a fixing plate; 15. a second motor; 16. a threaded rod; 17. a guide bar; 18. a slider; 19. a third motor; 20. a second rotating shaft; 21. rotating the block; 22. a first hydraulic lever; 23. a fourth motor; 24. a second hydraulic rod; 25. a grouting rod; 26. a drill bit; 27. a piston; 28. a slurry inlet pipe; 29. a hard tube; 30. a threaded sleeve; 31. a notch; 32. a bump; 33. a rubber ring; 34. grouting grooves; 35. a third rotating shaft; 36. a second shielding plate; 37. a groove; 38. a spring; 39. a clamping block; 40. a card slot; 41. a torsion spring; 42. and (4) adjusting the groove.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A roadbed underground grouting reinforcement device for road construction comprises a workbench 1, a feeding hopper 2, a material conveying mechanism 3, a stirring barrel 4, a stirring machine 5, a stirring blade 6, a discharging port 7, a first motor 8, a first rotating shaft 9, a first baffle plate 10, a material storage chamber 11, a pumping pump 12, a hose 13, a fixing plate 14, a second motor 15, a threaded rod 16, a guide rod 17, a sliding block 18, a third motor 19, a second rotating shaft 20, a rotating block 21, a first hydraulic rod 22, a fourth motor 23, a second hydraulic rod 24, a grouting rod 25, a drill bit 26, a piston 27, a slurry feeding pipe 28, a hard pipe 29, a threaded sleeve 30, a notch 31, a bump 32, a rubber ring 33, a grouting groove 34, a third rotating shaft 35, a second baffle plate 36, a groove 37, a spring 38, a clamping block 39, a clamping groove 40, a torsion spring 41 and an adjusting groove 42.
A feeding hopper 2 is fixed on one side of the workbench 1, and grouting materials are contained in the feeding hopper 2; go into 2 one sides of hopper and be connected with fortune material mechanism 3, fortune material mechanism 3 one side is connected with agitator 4, agitator 5 is installed to 4 one sides of agitator, 5 one sides of agitator are connected with stirring leaf 6, stirring leaf 6 is provided with four groups, and stirring leaf 6 constitutes revolution mechanic through agitator 5, and be sliding connection between stirring leaf 6 and the agitator 4, start agitator 5 and make stirring leaf 6 rotate, stir the slip casting material, the slip casting material lasts the stirring and keeps the motion state in agitator 4 and prevent static solidification.
The drain hole 7 has been seted up to the inside of agitator 4 that is close to mixer 5, 4 one sides of agitator that are close to drain hole 7 install first motor 8, 8 one sides of first motor are connected with first pivot 9, 9 one sides of first pivot that are close to drain hole 7 are connected with first shielding plate 10, first shielding plate 10 is provided with two sets ofly, and first shielding plate 10 constitutes revolution mechanic through first pivot 9, and the overall dimension of first shielding plate 10 is identical with the internal dimension of drain hole 7, start first motor 8, first motor 8 drives first pivot 9 and rotates, first pivot 9 rotates and drives first shielding plate 10 and leave drain hole 7, make fresh slip casting material from drain hole 7 get into in the stock room 11, stock room 11 has been seted up to 4 insides of agitator that are close to first shielding plate 10.
A pumping pump 12 is installed on one side of the stirring barrel 4 close to the material storage chamber 11, a hose 13 is connected on one side of the pumping pump 12, a fixing plate 14 is fixed on one side of the workbench 1 close to the stirring barrel 4, a second motor 15 is installed inside the fixing plate 14, a threaded rod 16 is connected between the second motor 15 and the fixing plate 14, a guide rod 17 is connected on one side of the fixing plate 14 close to the threaded rod 16, a sliding block 18 is connected between the threaded rod 16 and the guide rod 17, the sliding block 18 is in threaded connection with the threaded rod 16, the sliding block 18 is in sliding connection with the guide rod 17, the second motor 15 is started, the threaded rod 16 is driven to rotate by the second motor 15, the sliding block 18 is driven to move along the guide rod 17 by the rotation of the threaded rod 16, and the sliding block.
A third motor 19 is installed inside the sliding block 18, one side of the third motor 19 is connected with a second rotating shaft 20, one end of the second rotating shaft 20 is connected with a rotating block 21, the rotating block 21 and the first hydraulic rod 22 are of an integral structure, a rotating structure is formed between the rotating block 21 and the third motor 19 through the second rotating shaft 20, the third motor 19 is started to enable the third motor 19 to drive the second rotating shaft 20 to rotate, the second rotating shaft 20 rotates to drive the first hydraulic rod 22 to rotate, the first hydraulic rod 22 rotates to drive the grouting rod 25 to rotate in the adjusting groove 42, the orientation of a drill bit 26 at one end of the grouting rod 25 is changed, the first hydraulic rod 22 is installed at one side of the rotating block 21, one end of the first hydraulic rod 22 is connected with a fourth motor 23, the fourth motor 23 forms a telescopic structure through the first hydraulic rod 22, the second hydraulic rod 24 forms a rotating structure through the fourth motor 23, and the first hydraulic rod 22 and the fourth motor 23 are started simultaneously, the fourth motor 23 is enabled to drive the second hydraulic rod 24, the grouting rod 25 and the drill bit 26 rotate, the first hydraulic rod 22 drives the drill bit 26 to go deep into the ground, one side of the fourth motor 23 is connected with the second hydraulic rod 24, the grouting rod 25 is fixed at one end of the second hydraulic rod 24, the grouting rod 25 and the drill bit 26 are of an integrated structure, the piston 27 forms a telescopic structure through the second hydraulic rod 24, the maximum depth distance of the second hydraulic rod 24 is not smaller than the length of the grouting groove 34, the piston 27 is in sliding connection with the grouting groove 34, the second hydraulic rod 24 is started, the second hydraulic rod 24 drives the piston 27 to move along the grouting groove 34, the piston 27 can scrape grouting materials on the inner wall of the grouting groove 34 in the moving process and move together, the drill bit 26 is connected to one end of the grouting rod 25, and the piston 27 is connected to one end of the second hydraulic rod 24 close to the inside of the grouting rod 25.
A grout inlet pipe 28 is fixed on one side of the grouting rod 25 close to the piston 27, the grout inlet pipe 28 is connected with the hard pipe 29 in a sliding way, the hard pipe 29 and the lug 32 are of an integral structure, and the convex block 32 is in sliding connection with the notch 31, the grout inlet pipe 28 is in threaded connection with the threaded sleeve 30, the threaded sleeve 30 is rotated to enable the threaded sleeve 30 to perform threaded sliding relative to the grout inlet pipe 28 until the notch 31 on one side of the threaded sleeve 30 is aligned with the notch 31 on one side of the grout inlet pipe 28, the threaded sleeve 30 does not block the convex block 32, the hard pipe 29 at one end of the hose 13 is pulled out of the grout inlet pipe 28, one end of the hose 13 close to the grout inlet pipe 28 is connected with the hard pipe 29, one side of the grout inlet pipe 28 is connected with the threaded sleeve 30, the notches 31 are formed in one sides of the grout inlet pipe 28 and the threaded sleeve 30, the convex block 32 is connected to one side of the hard pipe 29 close to the notch 31, and the rubber ring 33 is connected to one side of the grout inlet pipe 28 close to the.
A grouting groove 34 is formed in each of the grouting rod 25 and the drill bit 26, a third rotating shaft 35 is connected to one end of the drill bit 26 close to the grouting groove 34, a second shielding plate 36 is connected to one side of the third rotating shaft 35, a rotating structure is formed between the second shielding plate 36 and the drill bit 26 through the third rotating shaft 35, the acting force of a torsion spring 41 on the second shielding plate 36 is larger than the friction force between a clamping block 39 and a clamping groove 40, when the drill bit 26 drills underground, soil blocks and gravels are prevented from entering the grouting groove 34 by the second shielding plate 36 to prevent blockage, the torsion spring 41 is connected between the third rotating shaft 35 and the second shielding plate 36, a groove 37 is formed in one side of the second shielding plate 36, a spring 38 is installed in the groove 37, a clamping block 39 is connected to one end of the spring 38, a telescopic structure is formed between the clamping block 39 and the groove 37 through the spring 38, the shape size of the clamping block 39 is matched with the inner size of the clamping groove 40, when the pressure applied to the second shielding plate 36 is greater than the sum of the friction force between the fixture block 39 and the fixture groove 40 and the acting force applied to the third rotating shaft 35 by the torsion spring 41, the fixture block 39 can compress the spring 38 and enter the groove 37 from the fixture groove 40, then the second shielding plate 36 rotates through the third rotating shaft 35, then the piston 27 drives the scraped grouting material to be discharged from the tail end of the grouting groove 34, the cleaning is facilitated, the fixture groove 40 is formed in one end of the drill bit 26 close to the fixture block 39, and the adjusting groove 42 close to the first hydraulic rod 22 is formed in one side of the workbench 1.
The grouting material contained in the feeding hopper 2 is cement-based grouting material or epoxy grouting material.
The epoxy grouting material comprises the following components: epoxy resin, furan resin, diluent, curing agent and accelerator, wherein the diluent comprises fatty alcohol glycidyl ether and ethylene dithiocarbonate; the curing agent comprises ethylenediamine and phenylenediamine; the promoter includes protein glue, alkalis, aluminum salt/magnesium salt/zinc salt/calcium salt, and glyoxal/glutaraldehyde. Used according to the conventional method: the epoxy resin, the furan resin and the diluent are mixed to form a solution A, the curing agent and the accelerator are mixed to form a solution B, and the solution A and the solution B are mixed to form the epoxy grouting material when the epoxy grouting material is used.
Example 1
The embodiment 1 provides an epoxy grouting material, which comprises the following components in parts by mass: 60 parts of bisphenol A epoxy resin; 25 parts of furfuryl alcohol phenolic resin; 30 parts of ethylene glycol glycidyl ether and 30 parts of ethylene dithiocarbonate; 15 parts of ethylenediamine and 20 parts of p-phenylenediamine; 10 parts of protein glue, 3 parts of NaOH, 3 parts of aluminum chloride and 3 parts of glyoxal.
Example 2
This example 2 provides another epoxy grouting material, which includes the following components in parts by mass: 50 parts of bisphenol F type epoxy resin; 20 parts of furfuryl alcohol urea-formaldehyde resin; 30 parts of glycerol glycidyl ether and 20 parts of ethylene dithiocarbonate; 10 parts of ethylenediamine and 10 parts of m-phenylenediamine; 5 parts of protein glue, 2 parts of NaOH, 1 part of zinc chloride and 2 parts of glutaraldehyde.
Example 3
This example 3 provides another epoxy grouting material, which includes the following components in parts by mass: 70 parts of bisphenol A type epoxy resin; 30 parts of furfuryl alcohol phenolic resin; 50 parts of trimethylolpropane glycidyl ether and 50 parts of ethylene dithiocarbonate; 15 parts of ethylenediamine and 30 parts of p-phenylenediamine; 10 parts of protein glue, 5 parts of NaOH, 5 parts of magnesium sulfate and 5 parts of glyoxal.
Example 4
This example 4 provides another epoxy grouting material, which includes the following components in parts by mass: 60 parts of bisphenol A epoxy resin; 30 parts of furfuryl alcohol phenolic resin; 25 parts of ethylene glycol glycidyl ether and 40 parts of ethylene dithiocarbonate; 10 parts of ethylenediamine and 20 parts of p-phenylenediamine; 10 parts of protein glue, 3 parts of NaOH, 4 parts of aluminum chloride and 5 parts of glyoxal.
Comparative example 1
Comparative example 1 provides an epoxy grouting material comprising the following components in parts by mass: 90 parts of bisphenol A type epoxy resin; 25 parts of ethylene glycol glycidyl ether and 40 parts of ethylene dithiocarbonate; 30 parts of ethylenediamine; 10 parts of protein glue, 3 parts of NaOH, 4 parts of aluminum chloride and 5 parts of glyoxal.
Comparative example 2
Comparative example 3 provides an epoxy grouting material comprising the following components in parts by mass: 60 parts of bisphenol A epoxy resin; 30 parts of furfuryl alcohol phenolic resin; 25 parts of ethylene glycol glycidyl ether; 10 parts of ethylenediamine and 20 parts of p-phenylenediamine; 10 parts of protein glue, 3 parts of NaOH, 4 parts of aluminum chloride and 5 parts of glyoxal.
The epoxy grouting materials prepared in examples 1 to 4 and comparative examples 1 to 3 were tested for concrete grouting, and the results of the respective performance tests are shown in the following table:
table 1 performance testing of epoxy grouting materials provided in examples and comparative examples
The epoxy grouting materials prepared by comparative example 4 and comparative example 1 found that:
the furan resin is under the curing system of epoxy resin, ethylenediamine and phenylenediamine, the flexural strength of the cured body after grouting is greatly improved, and the effect is better than that of the traditional curing system of epoxy resin and ethylenediamine. The epoxy grouting materials prepared by comparative example 4 and comparative example 2 found that: the method takes the mixture of the fatty alcohol glycidyl ether and the dithio ethylene carbonate as a dilution system, is more environment-friendly compared with the traditional furfural acetone dilution system, the permeability of the fatty alcohol glycidyl ether is further improved by adding the ethylene carbonate, the low viscosity of epoxy resin and furan resin grouting materials can be ensured, the grouting time is sufficient, and the grouting performance is ensured.
Example 5
In the application method of the epoxy grouting material provided in this embodiment 5, firstly, a leakage position of the roadbed is determined, and a leakage crack of the leakage position is evaluated, where the leakage crack is 0.2 mm:
when the leakage crack is larger than 0.2mm, firstly adopting cement-based grouting material for medium-pressure grouting, wherein the medium-pressure grouting pressure is 1/2 of the maximum allowable grouting pressure, and then adopting epoxy grouting material for low-pressure grouting, wherein the low-pressure grouting pressure is the minimum value of 1/5 and 0.6MPa of the maximum allowable grouting pressure;
when the leakage crack is less than or equal to 0.2mm, low-pressure grouting is directly performed by using an epoxy grouting material, and the low-pressure grouting pressure is the maximum value of 1/5 and 0.6MPa of the maximum allowable grouting pressure.
The grouting pressure calculation method comprises the following steps:
in the above formula: p11When the leakage crack is more than 0.2mm, adopting the grouting pressure of medium-pressure grouting of a cement-based grouting material; the unit MPa; p12When the leakage crack is larger than 0.2mm, adopting the grouting pressure of epoxy material low-pressure grouting, and the unit is MPa; p2When the leakage crack is less than or equal to 0.2mm, adopting the grouting pressure of epoxy material low-pressure grouting, and the unit is MPa; p3＝0.6MPa；PmaxFor maximum allowable grouting pressure, singlyBit MPa; gamma is the natural gravity of the foundation in KN/m3(ii) a Sigma is the tensile strength of the concrete, and the unit is kPa; h is the height of the soil column above the grouting position, and the unit is m.
The grouting amount calculation method comprises the following steps:
in the above formula:
Q11when the leakage crack is more than 0.2mm, the grouting amount of the medium-pressure grouting of the cement-based grouting material is adopted, and the unit m is3；
Q12When the leakage crack is more than 0.2mm, the grouting amount of low-pressure grouting of epoxy grouting material is adopted, and the unit m is3；
Q2When the leakage crack is less than or equal to 0.2mm, the grouting amount of low-pressure grouting by adopting epoxy grouting material is calculated in m3；
Alpha is the filling coefficient of the slurry, and is 0.4-0.9; beta is the slurry loss coefficient; r is the effective diffusion radius of the slurry, unit m; l is the length of the grouting section in m; m is the roadbed concrete porosity; n is the calculus rate of the serous fluid; t is the maximum thickness of the roadbed at the leakage position, and the unit is m; t is the average thickness of the subgrade at the site of the leak, in m.
The value range of each parameter is determined according to the specific situation of the slurry, and generally, the beta is 1.15-1.30; m is 1 to 5 percent; n is 0.5-0.95, and the higher the water-cement ratio of the slurry, the lower the value of the water-cement ratio of the slurry.
Regarding the determination of T and the calculation of T, the maximum thickness of the subgrade at the crack part can be determined according to the distribution area of grouting holes arranged at the crack part as required, namely T, and the average thickness of the subgrade at the crack part is calculated to be T.
When the leakage crack is larger than 0.2mm, the thickness of the roadbed is used as two parameters, and repeated experiments of an applicant prove that the grouting amount of twice grouting calculated by the method is more accurate and appropriate, and the method is suitable for grouting construction of roadbed seepage-proofing reinforcement.
Regarding the cement-based grouting material in medium-pressure grouting, in order to improve the strength and stability of the subgrade after grouting to the maximum extent, the cement-based-water glass double-liquid grouting material is selected to be most suitable. The cement can be ordinary portland cement or superfine cement.
In this example, a combination of portland cement, fly ash, bentonite, aluminum chloride, sodium zeolite, and water glass is selected. 50-70 parts of Portland cement, 20-30 parts of fly ash, 5-10 parts of bentonite, 5-10 parts of sodium zeolite and 0.5-1 part of aluminum chloride solution (1moL/L) are mixed by mass to obtain the grouting material. The volume ratio of the grouting material to the water glass is 1: (5-6).
In a preferred embodiment: 65 parts of Portland cement, 20 parts of fly ash, 7 parts of bentonite, 7 parts of sodium zeolite and 0.7 part of aluminum chloride solution (1moL/L) are mixed by mass to obtain the grouting material. The volume ratio of the grouting material to the water glass is 1: 5.
the sodium zeolite has abundant pores, has huge specific surface area, and active surface points, can play a load role, and can improve the strength of the grouting material on the premise of ensuring the fluidity of the grouting material. In addition, the surface active sites can be combined with aluminum in partial aluminum chloride and sodium and silicon in water glass, so that the connection property between the aluminum chloride and the water glass is improved, and the strength of the roadbed after grouting is further enhanced.
The operation method of the roadbed underground grouting reinforcement equipment for road construction comprises the following steps:
and (1) paying off to determine hole positions, controlling the hole distance error of the hole positions within 10cm, and controlling the hole bottom deviation value within 25 cm. The hole pitch of the grouting holes is 15-20mm, the pitch is 150-200mm, the grouting section is arranged in a quincunx shape, and the length of the grouting section is 5-10 m.
Step (2), adjusting the drilling angle; when the drilling angle is adjusted, the third motor 19 is started, the third motor 19 drives the second rotating shaft 20 to rotate, the second rotating shaft 20 rotates to drive the first hydraulic rod 22 to rotate, the first hydraulic rod 22 rotates to drive the grouting rod 25 to rotate in the adjusting groove 42, the orientation of the drill bit 26 at one end of the grouting rod 25 is changed, then the second motor 15 is started, the second motor 15 drives the threaded rod 16 to rotate, the threaded rod 16 rotates to drive the sliding block 18 to move along the guide rod 17, the sliding block 18 moves to enable the drill bit 26 to be gradually close to the position to be drilled, the orientation of the drill bit 26 is convenient to adjust, before the drill bit 26 drills, the hose 13 needs to be detached, the threaded sleeve 30 is rotated to enable the threaded sleeve 30 to perform threaded sliding relative to the grout inlet pipe 28 until the notch 31 at one side of the threaded sleeve 30 is aligned with the notch 31 at one side of the grout inlet pipe 28, the threaded sleeve 30 does not block the bump 32 any more, and the hard pipe 29 at one end of the hose 13 is taken, when the slurry inlet pipe 28 is pulled out, the bump 32 slides out through the notch 31, so that the pipeline is convenient to disassemble, after the hose 13 is disassembled and the drilling angle is adjusted, the first hydraulic rod 22 and the fourth motor 23 are started simultaneously, the fourth motor 23 drives the second hydraulic rod 24, the grouting rod 25 and the drill bit 26 to rotate, the first hydraulic rod 22 drives the drill bit 26 to go deep underground, and when the drill bit 26 drills underground, the second shielding plate 36 can prevent soil blocks and broken stones from entering the grouting groove 34 to prevent blockage;
step (3), adding grouting material ingredients into a feeding hopper 2, conveying the grouting materials into a stirring barrel 4 through a material conveying mechanism 3, starting a stirrer 5 to enable a stirring blade 6 to rotate, stirring the grouting materials, continuously stirring the grouting materials in the stirring barrel 4 to keep a motion state so as to prevent the grouting materials from being statically solidified, starting a first motor 8 until the grouting materials are needed to be used, driving a first rotating shaft 9 to rotate by the first motor 8, driving a first baffle plate 10 to leave a discharge port 7 by the rotation of the first rotating shaft 9, enabling fresh grouting materials to enter a storage chamber 11 from the discharge port 7, then inserting a hard pipe 29 at one end of a hose 13 into a grout inlet pipe 28, rotating a threaded sleeve 30 to enable a notch 31 at one side of the threaded sleeve 30 to be staggered with a bump 32, enabling the threaded sleeve 30 to extrude the bump 32, transmitting extrusion force received by the bump 32 to the hard pipe 29, enabling the hard pipe 29 to extrude a rubber ring 33, deforming and expanding the gap between the hard pipe 29 and the grout inlet pipe 28, the leakage is prevented, so that the grouting material in the material storage chamber 11 immediately enters the grouting rod 25 through the hose 13 after being pumped by the pumping pump 12 for use, and the freshness of the grouting material is kept;
and (4) simultaneously adopting a plurality of underground grouting reinforcement devices during grouting, and simultaneously providing a high-pressure grouting pipeline system. The pressure gauge is arranged at the grout inlet part of the grout injection port and is calibrated before use. In the grouting process, a method of 'less grouting and more grouting' is adhered to, and multiple times of grouting are needed for each grouting hole so as to improve the grouting effect.
And (5) determining the concrete grouting times according to the crack leakage condition of the roadbed and the depth of the grouting hole. When the injection rate of the grouting holes is lower than 0.3L/min, the standard of the cement-based grouting material for grouting is met, and grouting can be finished; and when the injection rate of the injection hole is lower than 0.5L/min, the standard of the completion of the injection of the epoxy grouting material is adopted, and the injection can be finished. And finishing grouting and sealing holes after the grouting standard is reached, wherein grouting holes are reserved after the grouting of the cement-based grouting material is finished or the holes are opened again when the grouting of the epoxy grouting material is finished.
Step (6), after grouting is finished, the second hydraulic rod 24 is started, the second hydraulic rod 24 drives the piston 27 to move along the grouting groove 34, the piston 27 scrapes grouting materials on the inner wall of the grouting groove 34 to move together in the moving process, until the piston 27 extrudes the second shielding plate 36, the pressure applied to the second shielding plate 36 is greater than the sum of the friction force between the fixture block 39 and the clamping groove 40 and the acting force applied to the third rotating shaft 35 by the torsion spring 41, the fixture block 39 can compress the spring 38 to enter the groove 37 from the clamping groove 40, then the second shielding plate 36 rotates through the third rotating shaft 35, then the piston 27 drives the scraped grouting materials to be discharged from the tail end of the grouting groove 34, cleaning is facilitated, then the second hydraulic rod 24 is started reversely, the second hydraulic rod 24 drives the piston 27 to lose the movement, so that the torsion spring 41 extrudes the second shielding plate 36 to drive the second rotating shaft 35 to reset, the clamping block 39 enters the clamping groove 40 again to facilitate next use.
The other specific implementation steps are carried out according to the technical specifications of the industry, and refer to the requirements of SL62-2014 technical specifications for cement grouting construction of hydraulic buildings.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the embodiments, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (9)
1. The utility model provides a road bed underground grouting reinforcement equipment that road construction used, includes workstation (1) and adjustment tank (42), its characterized in that: a feeding hopper (2) is fixed on one side of the workbench (1), and grouting materials are contained in the feeding hopper (2) and are cement-based grouting materials or epoxy grouting materials; one side of the feeding hopper (2) is connected with a material conveying mechanism (3), one side of the material conveying mechanism (3) is connected with a stirring barrel (4), one side of the stirring barrel (4) is provided with a stirring machine (5), and one side of the stirring machine (5) is connected with a stirring blade (6);
a discharging hole (7) is formed in the stirring barrel (4) close to the stirring machine (5), a first motor (8) is installed on one side of the stirring barrel (4) close to the discharging hole (7), a first rotating shaft (9) is connected to one side of the first motor (8), a first shielding plate (10) is connected to one side of the first rotating shaft (9) close to the discharging hole (7), and a material storage chamber (11) is formed in the stirring barrel (4) close to the first shielding plate (10);
a pumping pump (12) is installed on one side, close to the material storage chamber (11), of the stirring barrel (4), a hose (13) is connected to one side of the pumping pump (12), a fixing plate (14) is fixed on one side, close to the stirring barrel (4), of the workbench (1), a second motor (15) is installed inside the fixing plate (14), a threaded rod (16) is connected between the second motor (15) and the fixing plate (14), a guide rod (17) is connected to one side, close to the threaded rod (16), of the fixing plate (14), and a sliding block (18) is connected between the threaded rod (16) and the guide rod (17);
a third motor (19) is installed inside the sliding block (18), one side of the third motor (19) is connected with a second rotating shaft (20), one end of the second rotating shaft (20) is connected with a rotating block (21), one side of the rotating block (21) is provided with a first hydraulic rod (22), one end of the first hydraulic rod (22) is connected with a fourth motor (23), one side of the fourth motor (23) is connected with a second hydraulic rod (24), one end of the second hydraulic rod (24) is fixedly provided with a grouting rod (25), one end of the grouting rod (25) is connected with a drill bit (26), and one end of the second hydraulic rod (24) close to the inside of the grouting rod (25) is connected with a piston (27);
a grout inlet pipe (28) is fixed on one side of the grouting rod (25) close to the piston (27), one end of the hose (13) close to the grout inlet pipe (28) is connected with a hard pipe (29), one side of the grout inlet pipe (28) is connected with a threaded sleeve (30), gaps (31) are formed in one sides of the grout inlet pipe (28) and the threaded sleeve (30), one side of the hard pipe (29) close to the gaps (31) is connected with a convex block (32), and one side of the grout inlet pipe (28) close to the hard pipe (29) is connected with a rubber ring (33);
slip casting pole (25) and drill bit (26) are inside all seted up slip casting groove (34), are close to slip casting groove (34) the one end of drill bit (26) is connected with third pivot (35), one side of third pivot (35) is connected with second shielding plate (36), be connected with torsional spring (41) between third pivot (35) and second shielding plate (36), second shielding plate (36) one side is seted up flutedly (37), flutedly (37) internally mounted has spring (38), spring (38) one end is connected with fixture block (39), is close to fixture block (39) draw-in groove (40) have been seted up to the one end of drill bit (26), is close to first hydraulic stem (22) one side at workstation (1) is seted up in adjustment tank (42).
2. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: four groups of stirring blades (6) are arranged, the stirring blades (6) form a rotating structure through a stirrer (5), and the stirring blades (6) are in sliding connection with the stirring barrel (4);
the first shielding plates (10) are arranged in two groups, the first shielding plates (10) form a rotating structure through a first rotating shaft (9), and the outline dimension of the first shielding plates (10) is matched with the inner dimension of the discharging hole (7).
3. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: the sliding block (18) is in threaded connection with the threaded rod (16), and the sliding block (18) is in sliding connection with the guide rod (17).
4. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: the rotating block (21) and the first hydraulic rod (22) are integrated, and a rotating structure is formed between the rotating block (21) and the third motor (19) through a second rotating shaft (20);
the fourth motor (23) forms a telescopic structure through the first hydraulic rod (22), and the second hydraulic rod (24) forms a rotating structure through the fourth motor (23);
the grouting rod (25) and the drill bit (26) are of an integral structure, the piston (27) forms a telescopic structure through the second hydraulic rod (24), the maximum depth distance of the second hydraulic rod (24) is not less than the length of the grouting groove (34), and the piston (27) is in sliding connection with the grouting groove (34);
the grout inlet pipe (28) is in sliding connection with the hard pipe (29), the hard pipe (29) and the bump (32) are in an integral structure, the bump (32) is in sliding connection with the notch (31), and the grout inlet pipe (28) is in threaded connection with the threaded sleeve (30).
5. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: a rotating structure is formed between the second shielding plate (36) and the drill bit (26) through a third rotating shaft (35), and the acting force of the torsion spring (41) on the second shielding plate (36) is greater than the friction force between the clamping block (39) and the clamping groove (40);
the clamping block (39) and the groove (37) form a telescopic structure through a spring (38), and the outline dimension of the clamping block (39) is matched with the inner dimension of the clamping groove (40).
6. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: the epoxy grouting material comprises the following components: epoxy resin, furan resin, diluent, curing agent and accelerator, wherein the diluent comprises fatty alcohol glycidyl ether and ethylene dithiocarbonate; the curing agent comprises ethylenediamine and phenylenediamine; the promoter comprises protein glue, alkalis, aluminum salt/magnesium salt/zinc salt/calcium salt, and glyoxal/glutaraldehyde.
7. The roadbed underground grouting reinforcement equipment for road construction according to claim 6, wherein the roadbed underground grouting reinforcement equipment comprises: the weight parts of the components are as follows: 50-70 parts of epoxy resin; 20-30 parts of furan resin; 40-100 parts of a diluent; 20-50 parts of a curing agent; 10-30 parts of an accelerant; wherein the content of the first and second substances,
the epoxy resin is bisphenol A type epoxy resin or bisphenol F type epoxy resin; the furan resin is furfuryl alcohol phenolic resin or furfuryl alcohol urea-formaldehyde resin; the aliphatic alcohol glycidyl ether is ethylene glycol glycidyl ether, glycerol glycidyl ether or trimethylolpropane glycidyl ether;
the diluent comprises the following components in parts by weight: 20-50 parts of fatty alcohol glycidyl ether and 20-50 parts of ethylene dithiocarbonate; the curing agent comprises the following components in parts by weight: 10-20 parts of ethylenediamine and 10-30 parts of phenylenediamine; the accelerator comprises the following components in parts by weight: 5-15 parts of protein glue, 2-5 parts of alkalis, 1-5 parts of aluminum salt/magnesium salt/zinc salt/calcium salt and 2-5 parts of glyoxal/glutaraldehyde.
8. The roadbed underground grouting reinforcement equipment for road construction according to claim 1, wherein the roadbed underground grouting reinforcement equipment comprises: the cement-based grouting material can be a cement-based-water glass double-liquid grouting material; the cement is ordinary portland cement or superfine cement.
9. The roadbed underground grouting reinforcement equipment for road construction according to claim 8, wherein: the cement-based-water glass double-liquid grouting material is a combination of portland cement, fly ash, bentonite, aluminum chloride, sodium zeolite and water glass; 50-70 parts of Portland cement, 20-30 parts of fly ash, 5-10 parts of bentonite, 5-10 parts of sodium zeolite and 0.5-1 part of aluminum chloride solution (1moL/L) are mixed by mass to obtain the grouting material. The volume ratio of the grouting material to the water glass is 1: (5-6).
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| CN202011509908.7A CN112627167A (en) | 2020-12-18 | 2020-12-18 | Roadbed underground grouting reinforcement equipment for road construction |
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| CN202011509908.7A CN112627167A (en) | 2020-12-18 | 2020-12-18 | Roadbed underground grouting reinforcement equipment for road construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775577A (en) * | 2022-05-27 | 2022-07-22 | 中铁十二局集团有限公司 | Vehicle-mounted construction device for grouting reinforcement of railway roadbed |
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| RU2270327C1 (en) * | 2004-07-22 | 2006-02-20 | Общество с ограниченной ответственностью "Татнефть-Бурение" | Method for disastrous drilling mud loss zones isolation during oil and gas hole drilling |
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