CN113322958A - On-site grouting system and method for reinforcing flocculation sludge through vacuum preloading and grouting - Google Patents
On-site grouting system and method for reinforcing flocculation sludge through vacuum preloading and grouting Download PDFInfo
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- CN113322958A CN113322958A CN202110430103.1A CN202110430103A CN113322958A CN 113322958 A CN113322958 A CN 113322958A CN 202110430103 A CN202110430103 A CN 202110430103A CN 113322958 A CN113322958 A CN 113322958A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
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Abstract
The invention discloses an on-site grouting system and a method for reinforcing flocculation sludge through vacuum preloading and grouting in combination, wherein the method comprises the following steps: the device comprises an engineering mechanical vehicle, a grouting pipe, a vertical drainage plate, a control electric box, a foam plate, a flocculating agent pump, a vacuum pump and a plurality of conveying pipelines. The utility model provides a method that vacuum preloading unites slip casting flocculation silt to consolidate uses lime pipe slip casting as the main part technology, through the electrical control technique, realize the improvement to traditional vacuum preloading, adopt modernized mechanical equipment to add the construction, it is meticulous to have realized the construction high efficiency, the construction process is simplified, reduce the manpower and participate in, the factor of safety of work has been improved, and improve work efficiency by a wide margin, reduce the requirement of traditional vacuum preloading to the place through the mode of lime slip casting, the inside flocculation effect of soil body has been improved, the scope that vacuum preloading is suitable for has been improved, and the inside flocculation effect of soil body has been improved, the time limit for a project has been shortened greatly.
Description
Technical Field
The invention belongs to the technical field related to geotechnical engineering and hydraulic engineering research, and particularly relates to a field grouting system. The invention also relates to a method for reinforcing the vacuum preloading and grouting flocculation sludge implemented by adopting the field grouting system.
Background
In recent years, the development of urbanization in coastal areas, large-scale reclamation of reclamation land by reclamation from sea reclamation, and construction work have been increasingly developed. The hydraulic filling sludge and the engineering mud have high water content, large pore ratio and high compressibility, and whether the treatment of the hydraulic filling sludge and the engineering mud is proper or not has a considerable influence on the progress of engineering.
At present, the traditional measures for sludge treatment mainly adopt a vacuum preloading method as a main measure. With the development of times and science and technology, various types of improvement measures and methods appear on the basis of traditional vacuum preloading reinforcement treatment, such as a sand-free direct-discharging vacuum preloading technology, an air pressure splitting vacuum preloading technology, an electroosmosis combined vacuum preloading technology, a true electroosmosis combined vacuum preloading technology and the like, and the improvement technologies have certain effects in engineering application. Although the improved vacuum preloading method improves the soil body reinforcing effect to a certain extent, the method still has more defects, which are specifically as follows:
1) when sludge is treated, a drainage plate is laid in the earlier stage, the sludge is sprayed to a drainage system under the action of a vacuum pump, the particles of the sludge are usually fine, the drainage system is partially blocked under the impact force, the earlier stage sludge filling process is long, the drainage system is always soaked in the sludge, and partial sludge blocking is already caused. Therefore, the effect of the vacuum preloading is reduced.
2) The foundation reinforcement treatment is carried out by adopting the air pressure splitting vacuum preloading and air injection pressurization vacuum preloading technologies, and in engineering practice application, the stable air pressure difference can be ensured only by continuously blowing air into soil through a pressurization pipe, once the air supply is stopped, the vacuum negative pressure is reduced, the drainage rate is reduced immediately, the soil body reinforcement effect is poor, and particularly the reinforcement treatment effect of deep foundation soil is unsatisfactory.
3) Although the novel vacuum preloading technology such as the electroosmosis combined vacuum preloading technology improves the drainage efficiency of vacuum preloading to a certain extent and further accelerates the consolidation rate of the soil body, the method has high engineering cost and is difficult to popularize and apply in large area in actual engineering.
4) Conventionally, a 'vacuum preloading method' or 'vacuum stacking combined preloading method' is adopted for reinforcement, plastic drainage plates are inserted into a soft foundation according to a certain grid, after a whole vertical drainage channel is established, the drainage plates are connected through corrugated filter pipes to establish a horizontal drainage channel, and geotextile and sealing films are laid on the horizontal drainage channel to isolate soil from the atmosphere, so that the whole construction is complex, the cost is high, the time is long, and the requirement on vacuum formation is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a field grouting system and a method for reinforcing the flocculation sludge by combining vacuum preloading and grouting implemented by the field grouting system.
Therefore, the on-site grouting system provided by the invention can perform mechanical in-situ grouting and inserting plate on a high-bearing-capacity soil body, the soil body with lower bearing capacity is not suitable for manual grouting and inserting plate of a mechanical vehicle in-situ, the on-site grouting system comprises a movable engineering mechanical vehicle, a grouting pipe, a flocculating agent pump and a flocculating agent stirring tank, the engineering mechanical vehicle comprises a movable platform with a driving wheel, a loading frame is arranged on the movable platform and comprises two rail rods vertically fixed on the movable platform, sliding rail frames are arranged on the two rail rods and sleeved on the rail rods, the sliding rail frames are provided with driving devices for driving the sliding rail frames to move up and down along the rail rods, the driving devices are provided with control mechanisms, clamps are arranged in the middle of the sliding rail frames and used for clamping the grouting pipe or a drainage plate, grouting ports are formed in the movable platform in a manner of aligning to the clamps, the slip casting mouth confession slip casting pipe or drain bar pass, the flocculating agent agitator tank pass through the flocculating agent conveyer pipe with the flocculating agent pump is connected, the flocculating agent pump pass through the slip casting conveyer pipe with the slip casting union coupling.
Preferably, drive arrangement includes the lift runner and by the hand crank case of control electronic box control, lift runner drive chain, the slip track frame with the chain is connected and reciprocates along with it, through the rotation of the automatically controlled hand crank case of control electronic box control to control the lift runner and make the slip track frame carry out the up-and-down motion, and then control the slip casting pipe and reciprocate, have the hole on the slip casting pipe, the slip casting pipe gets into the cystosepiment slip casting mouth completely after, opens the flocculating agent pump, passes through the slip casting conveyer pipe with flocculating agent aqueous solution and gets into the slip casting pipe, and flocculating agent aqueous solution passes through in the hole infiltration gets into silt.
Preferably, the front and back side of track pole all has the track groove, the both ends of slip track frame have the U-shaped fork groove, and the slip track frame overlaps from the centre to both sides with its U-shaped fork groove on the track pole, U-shaped fork inslot side has the pulley, and the pulley supports in getting into the track groove in the track groove at track groove bottom, drive arrangement with the slip track frame is fixed integrative, the outside of track pole has vertical distribution's cingulum, drive arrangement disposes motor and gear, and motor drive gear, gear engagement are in on the cingulum, drive arrangement disposes electrical control mechanism.
Preferably, anchor clamps include two locking levers, the one end of locking lever with the swing of slip railways is connected, and another tip of locking lever has the lockhole, slip railways go up have with the jack that the lockhole was aimed at, the locking lever adopts the bolt to pass jack and lockhole locking, slip casting pipe and drain bar dispose the cover dish, and the cover dish cup joints on slip casting pipe or the drain bar, the locking lever will the cover dish locking is between locking lever and slip railways.
Preferably, the manual grouting pipe is different from the mechanical grouting pipe in structure, only the pipe opening of the manual grouting pipe can spray lime slurry, and the whole pipeline of the mechanical grouting pipe is provided with small holes for seeping out the lime slurry.
The invention provides a method for reinforcing vacuum preloading and grouting flocculation sludge by adopting the field grouting system, which comprises the following steps:
(1) firstly, building and arranging a field, building a foam board on a sludge tank, and placing a flocculating agent pump, a vacuum pump and a flocculating agent stirring tank on two sides of the sludge tank;
(2) for soil bodies which can enter a high-bearing capacity mechanical vehicle, a movable engineering mechanical vehicle is driven onto a foam plate working platform, and a grouting pipe is arranged on the engineering mechanical vehicle; for the soil body with low bearing capacity, manual grouting is adopted instead of mechanical vehicle approach grouting, so that constructors mark the position to be grouted on the foam board;
(3) adding a flocculating agent into a flocculating agent stirring tank, stirring the flocculating agent and water, connecting the flocculating agent stirring tank with a flocculating agent pump, and connecting the flocculating agent pump with a grouting pipe on an engineering machinery vehicle or a manual grouting pipe;
(4) the operation method of the soil body accessible by the high-bearing capacity mechanical vehicle comprises the following steps: aligning a grouting pipe of a working machine platform with a corresponding foam plate grouting opening, controlling an engineering mechanical vehicle to lift a rotating wheel, further controlling the grouting pipe to descend into the foam plate grouting opening, opening a flocculant pump after the grouting pipe completely enters the foam plate grouting opening, enabling a flocculant aqueous solution to enter the grouting pipe through a grouting conveying pipe, wherein the grouting pipe is provided with a plurality of fine holes, and the flocculant aqueous solution permeates into sludge through the holes to sequentially perform equal operation on each foam plate grouting opening; for the operation method of the soil body with low bearing capacity, a manual grouting pipe is found to correspond to the position of a needed grouting mark by manual approach, a foam board is manually inserted into the soil body, a flocculant pump is started after the foam board is inserted into the deepest part, and the grouting pipe is manually controlled to slowly and uniformly rise after flocculant aqueous solution enters the grouting pipe, so that the flocculant aqueous solution can permeate into the soil body at each height.
(5) After the grouting of the flocculating agent is completed, taking down the grouting pipe, installing a vertical drainage plate on an engineering mechanical vehicle for a soil body which can enter a high-bearing-capacity mechanical vehicle, controlling an electric control hand-operated handle box device to keep the vertical drainage plate vertically inserted into the sludge, and sequentially performing corresponding plate inserting operation on corresponding holes; for soil bodies which are not suitable for the low-bearing capacity mechanical vehicle, manually holding the drainage plate to enter the foam plate for inserting the plate, and sequentially inserting the plate into the marked holes.
(6) And connecting the drainage plate hand-shaped joint with each drainage plate, connecting the drainage pipe with the hand-shaped joint, finally connecting the drainage pipe with a vacuum pump, finally sealing the grouting port of the foam plate, and vacuumizing.
Preferably, in the step (4), the engineering mechanical vehicle can perform grouting and inserting plate through manual operation of an electric control hand-operated handle box for shallow depth of the sludge tank, and can perform control through a control electric box for deep depth.
Preferably, in the steps (2), (4) and (5), the mechanical working vehicle cannot enter the field for operation due to the fact that the water content of partial soil bodies is high and the bearing capacity is low, grouting and inserting plates can be performed manually in the field, and the two construction conditions are operated on the foam plate platform.
Preferably, in the step (4), the distance between the grouting holes of each foam board is 80 mm.
Preferably, in the step (5), the drainage plate is not inserted into each hole, and the specific number of the drainage plates is arranged according to actual conditions on site.
The invention has the technical effects that:
(1) in the prior art, the construction method is completely manual, high in difficulty and very inconvenient, and for the soil body with high bearing capacity, the construction machinery vehicle can advance and operate on the surface of the sludge by paving the foam board, so that the whole construction process is quick, safe and efficient while the construction quality is ensured, and the engineering expenditure is saved.
(2) This patent can select mechanical work car to enter the field to the high bearing capacity soil body and carry out the construction, can also select artifical slip casting picture peg to the low bearing capacity soil body, has extensive suitability to the engineering.
(3) According to the traditional method, a sludge transfer tank is required to be arranged for treating sludge by combining a vacuum preloading flocculant, and the flocculant and the sludge are mixed by the transfer tank and then pumped into a sludge treatment tank.
(4) According to the invention, the lime slurry is injected firstly, so that soil particles can be effectively improved, small particles are agglomerated into large particles, and then the large particles are inserted into the drainage plate, so that the problem of clogging of the drainage plate can be greatly reduced.
(5) In the past, the pipeline layout planning during the construction organization of the sludge is very complex, a complex drainage channel needs to be arranged, and a tight vacuum environment is formed, so that the construction difficulty is high, the cost and the time of foundation treatment can be increased, but the construction process is simplified through a grouting mode, lime is added, the drainage rate and the reinforcement effect are greatly improved, and the engineering benefit is improved.
(6) The method removes the use of a vacuum pump and a screw pump in the past by a flocculant pump grouting mode, shortens the whole engineering quantity, reduces 1/3 electric energy and saves engineering expenses.
(7) The method has the advantages that the lime water solution is pumped into the reserved pipeline from the reserved foam board hole through the flocculating agent pump, the whole pipeline is provided with the holes, the lime water solution can conveniently permeate into the sludge, the problem that the slurry is too thick and difficult to pump out when the flocculating agent and the slurry are mixed and then pumped into the treatment tank in the prior art is solved, and the vertical drainage board is inserted into the reserved foam board hole after the lime slurry is injected, so that the clogging problem caused by the fact that the slurry is pumped in after the drainage system is laid in the prior art is greatly reduced, the treatment efficiency of the drainage board is improved, the construction method is simple and easy, the construction is convenient, the construction quality is guaranteed, and meanwhile, the soft soil foundation reinforcement process can be remarkably accelerated.
Drawings
Fig. 1 is a schematic structural diagram of an engineering machinery vehicle of an on-site grouting system provided in embodiment 1 of the present invention.
FIG. 2 is a schematic view of a foam board arrangement
FIG. 3 is a schematic view of a grouting pipe
FIG. 4 is a schematic diagram of vacuum pump-vertical drain panel evacuation on site.
Fig. 5 is a schematic structural diagram of an in-situ grouting system provided in embodiment 2.
Fig. 6 is a schematic view showing the structural relationship between the sliding rail frame and the driving device and the rail bar in fig. 5.
Fig. 7 is a schematic structural view of fig. 6 after a grouting pipe is arranged.
Fig. 8 is a schematic structural view of the grouting pipe in fig. 7 after being sleeved with a sleeve disc and locked by a lock rod.
In the drawings: 1. engineering machinery vehicle, 1a, moving platform, 2, drive wheel, 3, control electronic box, 4, sliding rail frame, 5, track pole, 5a, track groove, 5b, U-shaped fork groove, 5c, pulley, 5d, toothed belt, 6, slip casting pipe, 7, lifting runner, 8, automatically controlled hand crank case, 9, platform slip casting mouth, 10, slip casting conveyer pipe, 11, flocculating agent pump, 12, flocculating agent conveyer pipe, 13, flocculating agent agitator tank, 14, cystosepiment, 15, cystosepiment slip casting mouth, 16, vacuum pump, 17, drain bar, 18, gear, 19, locking lever, 20, bolt, 21, set dish.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1 to 4, an on-site grouting system provided in embodiment 1 of the present invention includes a movable engineering machinery vehicle 1, a flocculant pump 11 and a flocculant stirring tank 13, where the engineering machinery vehicle 1 includes a moving platform 1a with driving wheels 2, a platform grouting port 9 is provided in the middle of the moving platform 1a, a loading frame is provided on the moving platform 1a, the loading frame includes two track rods 5 vertically fixed on the moving platform 1a, sliding track frames 4 are provided on the two track rods 5, the sliding track frames 4 are sleeved on the track rods 5, the sliding track frames 4 are provided with a driving device driving the sliding track frames to move up and down along the track rods 5, the driving device is provided with a control mechanism, a clamp is provided in the middle of the sliding track frames 4, the clamp is used for clamping a grouting pipe 6 or a drainage plate 17, the moving platform 1a is provided with a grouting port 9 aligned to the clamp, grouting opening 9 supplies slip casting pipe 6 or drain bar 17 pass, flocculant agitator tank 13 through flocculant conveyer pipe 12 with flocculant pump 11 is connected, flocculant pump 11 through slip casting conveyer pipe 10 with slip casting pipe 6 is connected. Drive arrangement includes lift runner 7 and the hand crank case 8 by control electronic box 3 control, 7 drive chain of lift runner, slip track frame 4 with the chain is connected and reciprocates along with it, through the rotation of the automatically controlled hand crank case 8 of control electronic box 3 control to control lift runner 7 and make slip track frame 4 carry out the up-and-down motion, and then control slip casting pipe 6 and reciprocate, have the hole on slip casting pipe 6, slip casting pipe 6 gets into behind cystosepiment slip casting mouth 15 completely, opens flocculating agent pump 11, passes through slip casting conveyer pipe 10 with flocculating agent aqueous solution and gets into slip casting pipe 6, and flocculating agent aqueous solution passes through the hole infiltration of slip casting pipe 6 and gets into in the silt.
Referring to fig. 1-4, the method for reinforcing the vacuum preloading and grouting flocculation sludge provided by the embodiment 1 of the invention comprises the following steps:
(1) firstly, constructing and arranging a field, constructing a foam board 14 on a sludge tank, constructing the foam board 14 to be used as a working platform, and mainly leading an engineering machinery vehicle 1 and people to work above the sludge tank to prevent the machines and the people from sinking in the process of working, wherein the foam board 14 is provided with a hole to facilitate grouting, and the hole forms a grouting port 9; a flocculating agent pump 11, a vacuum pump 16 and a flocculating agent stirring tank 13 are placed on two sides of the sludge tank, so that complete materials are ensured when the engineering machinery vehicle 1 runs, and the running is not interrupted;
(2) for soil bodies which can enter a high-bearing-capacity mechanical working vehicle, the engineering mechanical vehicle 1 is driven to a working platform formed by a foam board 14, a grouting pipe 6 is arranged on the engineering mechanical vehicle 1, and the engineering mechanical vehicle 1 is connected with circuit equipment; for the soil body with low bearing capacity, manual grouting is adopted instead of mechanical vehicle approach grouting, so that constructors mark the position to be grouted on the foam board;
(3) adding the flocculant into a flocculant stirring tank 13 to be stirred with water, and connecting a flocculant stirring tank 14 with a flocculant pump 11 through a flocculant conveying pipe 12, wherein the operation method for the approach of a mechanical vehicle is as follows: then connecting a flocculating agent pump 11 with a grouting pipe 6 on the engineering machinery vehicle 1 through a grouting conveying pipe 10; the manual grouting mode without mechanical approach directly connects the grouting conveying pipe with the single grouting pipe 6.
(4) To the mechanical working car need approach, move engineering machine car 1 to cystosepiment slip casting mouth 16 department, and aim at cystosepiment slip casting mouth 15 with slip casting pipe 6, through the lift runner of control engineering machine car, and then control slip casting pipe 6 descend and get into in cystosepiment slip casting mouth 15, get into the back completely, open flocculating agent pump 11, get into slip casting pipe 6 through slip casting conveyer pipe 10 with flocculating agent aqueous solution, the hole interval of every cystosepiment 14 is 80mm, can guarantee that every partial silt can both contact with the flocculating agent thick liquid in the slip casting pipe 6 and take place the reaction. The grouting pipe 6 is provided with a plurality of fine holes, and the flocculant aqueous solution permeates into the sludge through the holes of the grouting pipe 6, so that the holes of each foam plate 14 are operated in sequence in an equal manner; to the shallow of silt pond degree of depth, engineering machinery car 1 can carry out the slip casting and picture peg through automatically controlled hand crank case 8 manual control, and to darker, through control electronic box 3 control, and then can make sliding rail frame 4 reciprocate through control lifting runner 7, finally controls slip casting pipe 6 and reciprocates. And for the soil body which is not entered by the mechanical vehicle and has lower bearing capacity, the grouting pipe 6 is manually inserted into the corresponding position, the bottom of the soil body is inserted firstly, and the grouting pipe 6 is lifted slowly, so that the grout can permeate into each soil body at the vertical height.
(5) After finishing flocculating agent slip casting, take off slip casting pipe 6, install vertical drain bar 17 on engineering machine tool car 1 to through the automatically controlled hand-cranking handle case device of control, keep vertical drain bar 17 to insert perpendicularly in silt, correspond the picture peg operation to the hole that corresponds in proper order. The switching mode of the grouting pipe 6 and the drainage plate 17 is as follows: the sliding rail frame 4 is disassembled, the drainage plate 17 is placed at the position of the original grouting pipe 6 and clamped towards the center by the sliding rail frame 4, the grouting pipe 6 is switched in the same mode, the drainage plate 17 is not inserted into each hole, the specific drainage plate is arranged in quantity, and the arrangement is carried out according to the actual situation on site. For the soil body which is not entered by the mechanical vehicle and has lower bearing capacity, the drainage plate 17 is manually inserted into the position of the marking insertion plate, and the drainage plate is manually inserted into the soil body.
(6) And connecting the drainage plate hand-shaped joint with each drainage plate 17, connecting a drainage pipe with the hand-shaped joint, connecting the drainage pipe with a main pipe and a vacuum pump 16, finally sealing the holes of the foam plates 14, and starting the vacuum pump 17 for vacuumizing.
Referring to fig. 1, for the efficiency of engineering, the invention selects a grouting mode to reinforce sludge, the prior vacuum preloading sludge needs to be provided with a sludge transfer tank, which has higher requirements on the engineering field, while fig. 1 shows that the invention can treat the sludge by only needing one sludge tank, directly pumping the sludge into the sludge tank, building a foam plate working platform on the sludge tank, and directly inserting a grouting pipe 6 into the tank filled with the sludge to perform grouting. Because the consistency of the sludge after grouting can rise, the resistance is increased, and the drainage plate 17 is difficult to insert manually and is easy to bend, an electric system is arranged to control the grouting pipe 6 and the drainage plate 18 to move up and down.
Referring to fig. 1 and 3, the grouting pipe 6 is provided with a fine hole, after the grouting pipe 6 is inserted into sludge, the flocculant pump 11 is started, flocculant slurry has larger pressure under the action of the flocculant pump 11, so that a certain pressure difference exists between the sludge and the slurry, the flocculant slurry is promoted to permeate into the sludge through pores, the slurry leakage and the slurry leakage during grouting are avoided, the improvement of the sludge consolidation degree and the reduction of the consolidation time are realized, the water content of the sludge is reduced, the great promotion effect on reducing the uneven settlement and the total settlement of a soft soil foundation is realized, and the solidified sludge has certain bearing capacity
Compared with the prior art that the sludge is treated by the vacuum preloading and flocculating agent, the embodiment 1 has the advantages that the defects of the prior art that the sludge is treated by the vacuum preloading and flocculating agent are overcome, the prior art is complicated in engineering and has a large amount of manpower participation, the whole process is simplified and the manpower participation is reduced by adding machinery. Compared with the prior art, the mechanical operation has higher efficiency and smaller error, and the engineering quality is also improved.
Referring to fig. 5 to 8, an on-site grouting system provided in embodiment 2 of the present invention is substantially the same as that in embodiment 1, except that: all have track groove 5a in the front and back side of track pole 5, the both ends of slip track frame 4 have U-shaped fork groove 5b, and slip track frame 4 overlaps from the centre to both sides with its U-shaped fork groove 5b on the track pole 5, U-shaped fork groove 5b inboard has pulley 5c, and pulley 5c supports in track groove 5a bottom at track groove 5a, drive arrangement with slip track frame 4 is fixed integrative, the outside of track pole 5 has vertical distribution's cingulum 5d, drive arrangement disposes motor and gear 18, and motor drive gear 18, gear 18 meshing are in on the cingulum 5d, drive arrangement disposes electrical control mechanism. Anchor clamps include two locking levers 19, locking lever 19 one end with 4 swing joint of slip rail frame, another tip of locking lever 19 has the lockhole, slip rail frame 4 go up have with the jack that the lockhole was aimed at, locking lever 19 adopts bolt 20 to pass jack and lockhole locking, slip pipe 6 and drain bar 17 dispose set 21, set 21 cup joints on slip pipe 6 or drain bar 17, locking lever 19 will set 21 locks between locking lever 19 and slip rail frame 4, and set 21 and slip pipe 6 adopt threaded connection's mode to form fixed connection, perhaps adopt the mode of hasp to be connected, and drain bar and set 21 can adopt traditional hasp to be connected. In this embodiment, adopt set 21 to fix on slip casting pipe 6 to adopt locking lever 19 to lock set 21, thereby can lock more fast and firmly and unblock slip casting pipe 6 or drain bar 17, be favorable to beating to establish and switch slip casting pipe 6 and drain bar 17.
Referring to fig. 5 to 8, since the jig and the elevating mechanism are changed from those of embodiment 1 in embodiment 2 of the present invention, the use of the jig is as follows: the sleeve disc 21 is sleeved on the grouting pipe 6 and locked, the grouting pipe 6 is inserted into the center of the sliding rail frame 4, the lock rod 19 is swung to press the sleeve disc 22, and the lock rod is locked by a bolt. The lifting mechanism adopts a motor to drive the gear 18, the gear 18 is meshed with the toothed belt 5d, the gear 18 rotates to drive the whole driving device to move up and down, and then the sliding rail frame 4 is driven to move, so that the grouting pipe 6 can be pressed downwards or the grouting pipe 6 can be pulled upwards.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. An on-site grouting system is characterized in that: including mobilizable engineering machine tool car, flocculating agent pump and flocculating agent agitator tank, the engineering machine tool car is including the moving platform who has the drive wheel, is provided with the loading frame on the moving platform, and the loading frame includes two vertical track poles of fixing on moving platform, is provided with the slip track frame on two track poles, and the slip track frame cover is in on the track pole, the slip track frame dispose drive its along the drive arrangement that the track pole reciprocated, drive arrangement dispose control mechanism, have anchor clamps in the middle of the slip track frame, anchor clamps are used for pressing from both sides tight slip casting pipe or drain bar, aim at on the moving platform the slip casting mouth has been seted up to anchor clamps, and the slip casting mouth supplies slip casting pipe or drain bar pass, the flocculating agent agitator tank pass through the flocculating agent conveyer pipe with the flocculating agent pump is connected, the flocculating agent pump pass through the slip casting conveyer pipe with the slip casting union coupling.
2. The in situ grouting system of claim 1, wherein: drive arrangement includes the lift runner and by the hand crank case of control electronic box control, lift runner drive chain, the slip track frame with the chain is connected and reciprocates along with it, through the rotation of the automatically controlled hand crank case of control electronic box control to control the lift runner and make the slip track frame carry out the up-and-down motion, and then control the slip casting pipe and reciprocate, have the hole on the slip casting pipe, the slip casting pipe gets into foam board slip casting mouth after completely, opens the flocculating agent pump, passes through the slip casting conveyer pipe with flocculating agent aqueous solution and gets into the slip casting pipe, and flocculating agent aqueous solution passes through the hole infiltration and gets into in the silt.
3. The in situ grouting system of claim 1, wherein: all have the track groove track pole the front and back side, the both ends of slip track frame have U-shaped fork groove, and the slip track frame overlaps from the centre to both sides with its U-shaped fork groove on the track pole, U-shaped fork inslot side has the pulley, and the pulley supports in the track groove bottom portion of a groove, drive arrangement with the slip track frame is fixed integrative, the outside of track pole has the cingulum of vertical distribution, drive arrangement disposes motor and gear, and motor drive gear, gear engagement are in on the cingulum, drive arrangement disposes electrical control mechanism.
4. The in situ grouting system of claim 3, wherein: anchor clamps include two locking levers, the one end of locking lever with the swing of slip railways is connected, and another tip of locking lever has the lockhole, slip railways on have with the jack that the lockhole was aimed at, the locking lever adopts the bolt to pass jack and lockhole locking, slip casting pipe and drain bar dispose the cover dish, and the cover dish cup joints on slip casting pipe or the drain bar, the locking lever will the cover dish locking is between locking lever and slip railways.
5. A method for reinforcing the flocculation sludge by combining vacuum preloading and grouting by adopting the field grouting system of claim 1 is characterized by comprising the following steps of: the method comprises the following steps:
(1) firstly, building and arranging a field, building a foam board on a sludge tank, and placing a flocculating agent pump, a vacuum pump and a flocculating agent stirring tank on two sides of the sludge tank;
(2) for soil bodies which can enter a high-bearing capacity mechanical vehicle, a movable engineering mechanical vehicle is driven onto a foam plate working platform, and a grouting pipe is arranged on the engineering mechanical vehicle; for the soil body with low bearing capacity, manual grouting is adopted instead of mechanical vehicle approach grouting, so that constructors mark the position to be grouted on the foam board;
(3) adding a flocculating agent into a flocculating agent stirring tank, stirring the flocculating agent and water, connecting the flocculating agent stirring tank with a flocculating agent pump, and connecting the flocculating agent pump with a grouting pipe on an engineering machinery vehicle or a manual grouting pipe;
(4) the operation method of the soil body accessible by the high-bearing capacity mechanical vehicle comprises the following steps: aligning a grouting pipe of a working machine platform with a corresponding foam plate grouting opening, controlling an engineering mechanical vehicle to lift a rotating wheel, further controlling the grouting pipe to descend into the foam plate grouting opening, opening a flocculant pump after the grouting pipe completely enters the foam plate grouting opening, enabling a flocculant aqueous solution to enter the grouting pipe through a grouting conveying pipe, wherein the grouting pipe is provided with a plurality of fine holes, and the flocculant aqueous solution permeates into sludge through the holes to sequentially perform equal operation on each foam plate grouting opening; for the operation method of the soil body with low bearing capacity, manually entering a field to find a position corresponding to a needed grouting mark, manually inserting a foam board into the soil body, starting a flocculant pump after the foam board is inserted to the deepest part, and manually controlling the grouting pipe to slowly and uniformly rise after a flocculant aqueous solution enters the grouting pipe, so that the flocculant aqueous solution can permeate into the soil body at each height;
(5) after the grouting of the flocculating agent is completed, taking down the grouting pipe, installing a vertical drainage plate on an engineering mechanical vehicle for a soil body which can enter a high-bearing-capacity mechanical vehicle, controlling an electric control hand-operated handle box device to keep the vertical drainage plate vertically inserted into the sludge, and sequentially performing corresponding plate inserting operation on corresponding holes; for soil bodies which are not suitable for the low-bearing-capacity mechanical vehicle, manually holding the drainage plate to enter the foam plate for inserting the plate, and sequentially inserting the marked holes for plate inserting;
(6) and connecting the drainage plate hand-shaped joint with each drainage plate, connecting the drainage pipe with the hand-shaped joint, finally connecting the drainage pipe with a vacuum pump, finally sealing the grouting port of the foam plate, and vacuumizing.
6. The method for reinforcing the vacuum preloading and grouting flocculation sludge as claimed in claim 5, wherein the method comprises the following steps: in the step (4), for shallow depth of the sludge tank, the engineering mechanical vehicle can perform grouting and inserting through manual control of the electric control hand-operated handle box, and for deep depth, the electric control box is used for controlling.
7. The method for reinforcing the vacuum preloading and grouting flocculation sludge as claimed in claim 5, wherein the method comprises the following steps: in the steps (2), (4) and (5), because the water content of partial soil body is higher and the bearing capacity is lower, the mechanical working vehicle cannot enter the field for operation, so that manual entering can be carried out for grouting and inserting plates, mechanical grouting and inserting plates can be carried out for high soil body strength, and two construction conditions are operated on the foam plate platform.
8. The method for reinforcing the vacuum preloading and grouting flocculation sludge as claimed in claim 5, wherein the method comprises the following steps: in the step (4), the distance between the grouting ports of the foam boards is 80 mm.
9. The method for reinforcing the vacuum preloading and grouting flocculation sludge as claimed in claim 5, wherein the method comprises the following steps: in the step (5), the drainage plates are not inserted into every hole, and the specific number of the drainage plates is arranged according to the actual situation on site.
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| CN114808647A (en) * | 2022-05-23 | 2022-07-29 | 中铁六局集团有限公司 | Slip casting platform truck |
| CN114960614A (en) * | 2022-03-22 | 2022-08-30 | 温州大学 | Foundation treatment method combining flocculation grouting with vacuum preloading |
| CN115288112A (en) * | 2022-08-17 | 2022-11-04 | 北京市市政一建设工程有限责任公司 | River course soft soil foundation reinforced structure |
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| CN114673130A (en) * | 2022-03-21 | 2022-06-28 | 中铁时代建筑设计院有限公司 | Method and device for reinforcing backfill soil in limited space by grouting moso bamboo |
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Application publication date: 20210831 Assignee: Zhejiang Lvjian Testing Co.,Ltd. Assignor: Wenzhou University Contract record no.: X2023330000408 Denomination of invention: A method of on-site grouting system and vacuum preloading combined with grouting for flocculent sludge reinforcement Granted publication date: 20230407 License type: Common License Record date: 20230718 |
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