CN112814060A - Grooving machine for underground grouting continuous wall construction and construction method - Google Patents

Abstract

The utility model belongs to the technical field of construction and specifically relates to a groover and construction method for construction of slip casting diaphragm wall underground, it includes board and fluting device, fluting device and base station sliding connection, the fluting device includes mounting bracket, drilling rod and drill bit, and the drilling rod rotates with the mounting bracket to be connected, drill bit and drilling rod fixed connection, the drilling rod is provided with two rows side by side, and the tangent setting of drilling that two rows of drill bits drilled out. In this application, reduce twice grooving process for once, also reduced the process that once the cement thick liquids that stews and solidify simultaneously, and then greatly shortened the construction cycle of double width continuous wall, reached the purpose that has improved double width continuous wall efficiency of construction.

Description

Grooving machine for underground grouting continuous wall construction and construction method

Technical Field

The application relates to the field of building construction, in particular to a grooving machine and a construction method for underground grouting continuous wall construction.

Background

At present, an underground continuous wall is a continuous underground wall body with waterproof, soil retaining and bearing functions, which is formed by pouring after underground grooving, and is widely used for building basements of buildings, parking lots, deep foundations of high-rise buildings and the like.

The grooving machine is often used in excavation underground continuous wall, refer to fig. 1, the grooving machine includes board 1, guide arm 2, elevating gear 3 and fluting device 4, board 1 level sets up the ground at the job site, guide arm 2 vertical setting, 2 bottom ends of guide arm and board 1 fixed connection, elevating gear 3 is located 2 tops of guide arm, fluting device 4 includes mounting bracket 41, drilling rod 42 and drill bit 43, drilling rod 42 vertical setting, drilling rod 42 is provided with eight, eight drilling rod 42 tops all are connected with mounting bracket 41 rotation, eight drilling rod 42 set up along the length direction of mounting bracket 41, eight drilling rod 42 are tangent row into a straight line in proper order, eight drilling rod 42 are connected with drive assembly 422, drill bit 43 and drilling rod 42 bottom fixed connection. When a grooving machine is used for grooving a construction site, firstly, the machine table 1 is moved to a grooving position required by the construction site, then, the lifting device 3 is used for lifting the grooving device 4 until the drill bit 43 is abutted to the construction ground, then, the driving assembly 422 is used for driving the eight drill rods 42 to synchronously rotate, the eight drill rods 42 drive the eight drill bits 43 to simultaneously drill, the side walls of the grooves are cleaned by means of slurry while drilling, after the grooving is completed, the grooving device 4 is moved to be away from the dug grooves, the grooves are cleaned, then, cement slurry is poured into the grooves, standing solidification is carried out, and then, the machine table 1 is moved to the next position.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when a grooving machine is used for excavating a groove with the width being twice that of the standard width, the groove with the standard width needs to be excavated twice in the front and back, the time for waiting concrete to solidify exists between the excavation works on the front side and the back side, the construction period is long, and the construction efficiency of the continuous wall is low.

Disclosure of Invention

In order to improve the construction efficiency of the continuous wall, the application provides a grooving machine and a construction method for underground grouting continuous wall construction.

In a first aspect: the application provides a groover for construction of underground slip casting continuous wall adopts following technical scheme:

the utility model provides a groover for construction of underground slip casting diaphragm wall, includes board and fluting device, fluting device and board sliding connection, the fluting device includes mounting bracket, drilling rod and drill bit, and the drilling rod rotates with the mounting bracket to be connected, drill bit and drilling rod fixed connection, the drilling rod is provided with two rows side by side, and the tangent setting of drilling that two rows of drill bits drilled out.

Through adopting above-mentioned technical scheme, utilize two rows of drilling rods that set up side by side to carry out the fluting of driling, two adjacent drill bits drill out the drilling tangent, dig the width of establishing the slot and be twice of drilling diameter promptly, one shot forming, pour into the cement thick liquids in the slot after the shaping, the diaphragm wall of formation double width stews, in the work progress of diaphragm wall, the process of digging the slot twice reduces to once, the process that the cement thick liquids that has once stew simultaneously has also been reduced, and then greatly shortened the construction cycle of double width diaphragm wall, reach the purpose that has improved double width diaphragm wall efficiency of construction.

Optionally, a first wheel is sleeved on the outer side of each drill rod and fixedly connected with the drill rods, a plurality of second wheels are arranged between every two adjacent rows of the drill rods and rotatably connected with the mounting frame, and the second wheels are all meshed with the four adjacent first wheels.

Through adopting above-mentioned technical scheme, rotate the second round, make the second round drive and the synchronous emergence rotation of four first rounds of second round meshing, reduced the degree of difficulty of rotating a plurality of drilling rods, realized the simultaneous movement between the two rows of drilling rods in front and back simultaneously.

Optionally, the second wheel is fixedly connected with a third wheel, the diameter of the third wheel is smaller than the distance between two adjacent drill rods in the same row, fourth wheels are arranged on the outer sides of the two rows of drill rods and are rotatably connected with the mounting frame, the fourth wheels and the third wheel are driven by a belt, and the fourth wheels and the third wheel are arranged in a plurality.

By adopting the technical scheme, the fourth wheel is rotated, the third wheel is driven to rotate by the fourth wheel through the transmission of the belt, the third wheel drives the second wheel to rotate, and the fourth wheel drives the second wheel through the transmission of the third wheel; and because the diameter of the third wheel is smaller than that of the second wheel, one end of the belt, which is far away from the fourth wheel, penetrates through a gap between two adjacent drill rods and then is connected with the third wheel, so that the contact probability of the belt and the drill rods is reduced, and the influence of the belt on the rotation of the drill rods is reduced.

Optionally, a second-stage linkage assembly is arranged between the fourth wheels and comprises a linkage shaft and a connecting shaft, the linkage shaft is rotatably connected with the mounting frame, one end of the linkage shaft is connected with a driving piece for driving the linkage shaft to rotate, one end of the connecting shaft is fixedly connected with the fourth wheels, and a transmission piece for realizing transmission between the linkage shaft and the connecting shaft is arranged between the other end of the linkage shaft and the linkage shaft.

Through adopting above-mentioned technical scheme, start the driving piece, the driving piece drives the universal driving shaft and rotates, and the universal driving shaft passes through the driving medium and drives a plurality of connecting axles synchronous rotation, because the connecting axle is connected with fourth wheel rotation, a plurality of connecting axles drive a plurality of fourth wheel synchronous rotations respectively, later rethread third wheel, second wheel and setting up of first wheel drive two rows of drilling rods and all rotate in step, and then realized the linkage between two rows of drilling rods, saved the quantity of driving piece simultaneously, realize energy-conserving effect.

Optionally, the transmission is a bevel gear set.

Through adopting above-mentioned technical scheme, utilize bevel gear group to realize the transmission between universal driving shaft and a plurality of connecting axles, bevel gear group is the important subassembly that realizes two rows of drilling rods synchronous rotation, and bevel gear's setting has improved the convenience of realizing the transmission between universal driving shaft and a plurality of connecting axles simultaneously.

Optionally, a grouting channel for injecting cement slurry is formed in the drill rod, one end of the grouting channel is communicated with a cement slurry source, and the other end of the grouting channel is communicated with the outer side wall of the drill bit.

Through adopting above-mentioned technical scheme, utilize the slip casting passageway to pour into cement thick liquids into to the ditch inslot dug, cement thick liquids flow along the slip casting passageway, and cement thick liquids pile up the rising gradually from the ditch diapire, and then reduced the gas volume in the cement thick liquids, improved the quality after the diaphragm wall shaping.

Optionally, the side wall of the grouting channel is fixedly connected with a heat preservation film.

Through adopting above-mentioned technical scheme, because the heat preservation membrane sets up the lateral wall department at the slip casting passageway, the heat preservation membrane keeps the temperature in the slip casting passageway, reduces the reduction of slip casting passageway internal temperature, and then has reduced the condition that the cement thick liquids appear and have been refrigerated fast setting in the slip casting passageway to prevent that the cement thick liquids from blockking up in the slip casting passageway, improved the smoothness nature that the cement thick liquids flow in the slip casting passageway.

Optionally, the grouting channels of the two rows of drill rods are arranged in a crossed manner.

Through adopting above-mentioned technical scheme, slip casting passageway cross arrangement has reduced the time that cement thick liquids persist in the slip casting passageway in order to reduce the quantity of slip casting passageway, has further reduced the probability that the solidification appears in the cement thick liquids, has improved the smooth degree of slip casting process.

In a second aspect, the construction method of the underground grouting continuous wall provided by the application adopts the following technical scheme:

a construction method of underground grouting continuous wall comprises the following steps: the method comprises the following steps:

s1, measurement and positioning: measuring a construction site, and determining a construction line section;

s2, digging a wall protection slurry guide channel: digging two retaining wall slurry guide channels on two sides of the position to be provided with the continuous wall respectively, and communicating the retaining wall slurry guide channels with a retaining wall slurry supply source;

s3, wall protection slurry injection: before excavation, wall protection slurry source inner wall protection slurry is filled in a wall protection slurry guide channel;

s4, positioning a grooving machine: moving the grooving machine to reach the position near the required grooving position, and aligning the grooving device with the position to be grooved;

s5, lowering the slotting device to perform slotting, namely starting a driving piece for driving a linkage shaft to rotate, driving the linkage shaft to rotate by the driving piece, simultaneously driving a plurality of fourth wheels to rotate by the linkage shaft through a bevel gear set and a connecting shaft, driving a third wheel to rotate by the fourth wheel through the transmission of a belt, driving two rows of drill rods to synchronously rotate by the third wheel through the matching of a second wheel and a first wheel, then enabling the slotting device to be underground, and assisting the slotting by using wall protection slurry;

s6, recovering wall protection slurry: when the drill bit reaches the position of the required slotting depth, stopping the operation of the slotting device, completing the slotting, and then recovering the wall protection slurry in the slot;

s7, lifting the grooving device and pouring cement slurry: injecting cement slurry into the grouting channel, starting the grooving device to ascend and the drill bit of the drill rod to rotate simultaneously, enabling the cement slurry to reach the bottom wall of the groove along the grouting channel, then gradually filling the groove with the cement slurry along with the ascending of the drill rod, stirring and uniformly paving the cement slurry by the drill bit simultaneously, and stopping the injection of the cement slurry until the drill bit reaches the construction ground;

s8, standing and solidifying: and standing the cement slurry and solidifying the cement slurry into the continuous wall.

By adopting the technical scheme, the construction position is determined according to the measured data, so that the accuracy of the construction position of the continuous groove is improved, and the deviation of the position of the continuous wall is reduced; before grooving, digging a guide channel, and injecting wall protection slurry into the guide channel, wherein the wall protection slurry in the guide channel can be injected into the arranged groove during grooving, and the wall protection slurry forms a mud skin on the side wall of the groove so as to reinforce the side wall of the groove and reduce the probability of collapse; in the grooving process, the two rows of drill rods are driven to synchronously rotate through the matching of the driving piece, the linkage shaft and the wheels, so that the synchronous drilling work of the two rows of drill rods is realized, the quality of the dug grooves is further improved, the grooves with double widths are drilled through the two rows of drill rods, the construction time is shortened, and the construction efficiency is improved; when the drill bit drills to a required depth, the redundant wall protection slurry is recovered to achieve the effect of cleaning the groove and reduce the influence on the quality of the cement slurry, then the cement slurry is injected from the bottom wall of the groove through the grouting channel, the cement slurry extrudes the gas in the groove, the generation of air bubbles in the cement slurry is reduced, the cement slurry is stirred through the rotation of the drill bit while the cement slurry is injected so as to assist the overflow of the gas in the cement slurry, the inside of the cement slurry is compact, and the quality of the formed continuous wall is further improved; and finally, standing the cement slurry until the cement slurry is solidified into a solid continuous wall, and realizing the functions of supporting and seepage control by utilizing the solid continuous wall.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the two rows of drill rods, the two-time grooving process is reduced to one time, and the process of one-time standing cement slurry solidification is also reduced, so that the construction period of the double-width continuous wall is greatly shortened, and the purpose of improving the construction efficiency of the double-width continuous wall is achieved;

2. through the arrangement of the two-stage linkage assembly, linkage between two rows of drill rods is realized, the number of driving pieces is saved, and the energy-saving effect is realized;

3. due to the arrangement of the heat-insulating film on the inner wall of the grouting channel, the temperature reduction in the grouting channel is reduced, the condition that cement slurry is cooled and quickly solidified in the grouting channel is further reduced, the cement slurry is prevented from being blocked in the grouting channel, and the flowing smoothness of the cement slurry in the grouting channel is improved;

4. through the arrangement of the retaining wall slurry, when the groove is opened, the retaining wall slurry in the guide groove can be injected into the opened groove, and the retaining wall slurry forms a mud skin on the side wall of the groove so as to reinforce the side wall of the groove and reduce the probability of collapse.

Drawings

FIG. 1 is a schematic diagram of the background art of the present application;

FIG. 2 is a schematic structural view of a slotter in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a slotting device in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a grouting channel in an embodiment of the present application;

FIG. 5 is a schematic structural view of a primary linkage assembly in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a primary linkage assembly in an embodiment of the present application.

Description of reference numerals: 1. a machine platform; 2. a guide bar; 3. a lifting device; 4. a slotting device; 41. a mounting frame; 411. a first plate; 412. a second plate; 42. a drill stem; 421. grouting a channel; 4211. a heat preservation film; 422. a drive assembly; 43. a drill bit; 5. a drive mechanism; 51. a drive motor; 52. a first-level linkage assembly; 521. a first wheel; 522. a second wheel; 523. a third wheel; 534. a fourth wheel; 53. a secondary linkage assembly; 531. a linkage shaft; 532. a connecting shaft; 533. a bevel gear set; 5331. a vertical wheel; 5332. a transverse wheel; 6. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses a grooving machine for underground grouting continuous wall construction. Referring to fig. 2, a groover for construction of underground slip casting continuous wall includes board 1, guide arm 2, elevating gear 3 and fluting device 4, board 1 level sets up the ground at the job site, guide arm 2 is vertical to be set up, 2 bottom ends of guide arm and board 1 fixed connection, elevating gear 3 sets up on 2 tops of guide arm, fluting device 4 is located elevating gear 3 and is close to construction ground one side, fluting device 4 and board 1 sliding connection, fluting device 4 includes mounting bracket 41, drilling rod 42 and drill bit 43, mounting bracket 41 and 2 sliding connection of guide arm, the vertical setting of drilling rod 42, drilling rod 42 aligns and is provided with two rows, drilling rod 42 top is rotated with mounting bracket 41 and is connected, drilling rod 42 bottom and drill bit 43 fixed connection, two rows of drilling rods 42 are connected with actuating mechanism 5. When a grooving machine is used for grooving a construction site, firstly, a grooving device 4 is aligned with a position to be grooved on the construction ground, then, a lifting device 3 is used for driving the grooving device 4 to descend, meanwhile, a driving mechanism 5 is started to drive a drill rod 42 to rotate, the drill rod 42 drives a drill bit 43 to perform drilling and grooving operations on the construction ground, two rows of drill rods 42 are used for digging and setting grooves 6 with double widths, cement slurry is poured into the grooves 6 after the grooves 6 are dug and set, and standing and solidifying are performed to form the continuous wall with double widths.

Referring to fig. 2 and 3, the mounting frame 41 sequentially comprises a first plate 411 and a second plate 412 along a direction from the lifting device 3 to the construction ground, the first plate 411 and the second plate 412 are both horizontally arranged, the first plate 411 and the second plate 412 are both connected with the guide rod 2 in a sliding mode, the first plate 411 is close to the top end of the drill rod 42, the second plate 412 is close to the bottom end of the drill rod 42, and the second plate 412 and the first plate 411 are both connected with the two rows of drill rods 42 in a rotating mode. Utilize elevating gear 3 to drive mounting bracket 41 and slide along guide arm 2, and then realized the lift to drilling rod 42 and drill bit 43, fix the position between two rows of drilling rods 42 through mounting bracket 41, provide the support for the rotation of two rows of drilling rods 42 simultaneously.

Referring to fig. 2 and 3, each row of drill rods 42 is provided with 8 drill rods, a gap is left between two adjacent drill rods 42, and the 8 drill rods 42 in the two rows are respectively aligned; the number of drill bits 43 and drill rods 42 is the same, the drill holes drilled by adjacent drill bits 43 are arranged tangentially, and the diameter of the drill holes drilled by the drill bits 43 is the standard width of the groove 6. The width of the groove 6 drilled by the two rows of drill rods 42 is double of the standard width, and the groove is formed in one step, so that the groove digging process is reduced to one step, the process of setting cement slurry for standing is reduced, the construction period of the double-width continuous wall is greatly shortened, and the purpose of improving the construction efficiency of the double-width continuous wall is achieved.

Referring to fig. 2 and 4, a grouting channel 421 is arranged in the drill rod 42, the grouting channel 421 is arranged vertically, the top end of the grouting channel 421 penetrates through the top end of the drill rod 42, and the bottom end of the grouting channel 421 penetrates through the side wall of the drill bit 43; the eight grouting channels 421 are arranged, one of the two aligned drill rods 42 in the two rows of drill rods 42 is provided with a grouting channel 421, a drill rod 42 which is not provided with a grouting channel 421 is arranged between the two adjacent grouting channels 421 in the same row, the eight grouting channels 421 are distributed in a cross manner, and the top ends of the grouting channels 421 are connected with a cement slurry source.

When the drill rod 42 drills to the bottom wall of the groove 6, grouting is started in the groove 6, cement slurry is injected into the grouting channel 421, the cement slurry flows from top to bottom along the grouting channel 421 until the cement slurry passes through the drill 43 and abuts against the bottom wall of the groove 6, then the liquid level of the cement slurry in the groove 6 is continuously increased along with continuous injection of the cement slurry until the whole groove 6 is filled, the cement slurry simultaneously extrudes air in the groove 6 out of the groove 6, and after grouting is finished, standing is carried out to wait for the cement slurry to be solidified into a continuous wall; the cross-distributed grouting channels 421 reduce the laying of grouting pipelines at the top end of the drill rod 42, simultaneously realize the required grouting effect and realize the purpose of energy conservation.

In order to realize the heat preservation of the cement slurry in the grouting channel 421, referring to fig. 1, a heat preservation film 4211 is arranged on the side wall of the grouting channel 421, the heat preservation film 4211 is fixedly connected with the side wall of the grouting channel 421, and the heat preservation film 4211 covers the side wall of the grouting channel 421. The heat preservation film 4211 is used for preserving the heat of the cement slurry in the grouting channel 421 so as to prevent the cement slurry from being solidified by cooling to block the grouting channel 421, and the heat preservation film 4211 improves the circulation of the cement slurry in the grouting channel 421.

Referring to fig. 2 and 3, the driving mechanism 5 is disposed on the top end of the first plate 411, the driving mechanism 5 includes a driving motor 51, a plurality of first-stage linkage assemblies 52 and a plurality of second-stage linkage assemblies 53, the first-stage linkage assemblies 52 are disposed on the top ends of two rows of adjacent four drill rods 42, the plurality of first-stage linkage assemblies 52 are disposed, the second-stage linkage assemblies 53 are disposed between the plurality of first-stage linkage assemblies 52, the second-stage linkage assemblies 53 are connected with the driving motor 51, the driving motor 51 is a driving member, and the driving motor 51 is fixedly connected with the top end of the first plate 411. When the driving mechanism 5 is used for driving the two rows of drill rods 42 to start working, the driving motor 51 is started, and the driving motor 51 realizes the synchronous rotation of the two rows of drill rods 42 through the matching of the first-stage linkage assembly 52 and the second-stage linkage assembly 53, so that the stability of the trench 6 during excavation is improved, and the number of driving pieces is saved.

Referring to fig. 5, the primary linkage assembly 52 includes a first wheel 521, a second wheel 522, a third wheel 523, and a fourth wheel 534, the first wheel 521, the second wheel 522, the third wheel 523, and the fourth wheel 534 are horizontally disposed, and the first wheel 521, the second wheel 522, the third wheel 523 and the fourth wheel 534 are rotatably connected with the top end of the first plate 411, the first wheel 521 is sleeved outside the drill rod 42, the first wheel 521 is fixedly connected with the outer side wall of the drill rod 42, the second wheel 522 is positioned in the middle of four adjacent drill rods 42 of the two rows of drill rods 42, the second wheel 522 is meshed with the four adjacent first wheels 521, the third wheel 523 is positioned on one side of the second wheel 522 far away from the first plate 411, the third wheel 523 is fixedly connected with the second wheel 522, the fourth wheel 534 is positioned on one side of the two rows of drill rods 42 far away from the machine table 1, the fourth wheel 534 and the third wheel 523 are driven by a belt, and the fourth wheel 534, the third wheel 523 and the second wheel 522 are all provided with four wheels.

When the primary linkage assembly 52 is in a working state, the four fourth wheels 534 are respectively and simultaneously rotated, the fourth wheels 534 drive the third wheel 523 to rotate through a belt, the third wheel 523 drives the second wheel 522 to synchronously rotate, the second wheel 522 drives the first wheel 521 to rotate, and the first wheel 521 drives the drill rods 42 to rotate, so that the synchronous rotation of the two rows of drill rods 42 is realized.

Referring to fig. 5, the diameter of the third wheel 523 is smaller than the distance between two adjacent drill pipes 42 in the same row, the diameters of the third wheel 523 and the fourth wheel 534 are the same, a belt between the third wheel 523 and the fourth wheel 534 passes through between two adjacent drill pipes 42, and the belt does not abut against the two adjacent drill pipes 42. The force application direction for driving the second wheel 522 to rotate is moved to the outer side of the two rows of drill rods 42 through the arrangement of the third wheel 523 and the fourth wheel 534, and the arrangement of the third wheel 523 and the fourth wheel 534 does not influence the rotation of the two rows of drill rods 42, so that the practicability is high.

Referring to fig. 1, the secondary linkage assembly 53 includes a linkage shaft 531, a connecting shaft 532 and bevel gear sets 533, the connecting shaft 532 is vertically arranged at the center of the top end of the fourth wheel 534, the bottom end of the connecting shaft 532 is fixedly connected with the top end of the fourth wheel 534, the linkage shaft 531 is horizontally arranged between the connecting shaft 532 and the fourth wheel 534, the linkage shaft 531 is rotatably connected with the first plate 411, one end of the linkage shaft 531 is fixedly connected with the driving motor 51, the bevel gear sets 533 are arranged between the top end of the connecting shaft 532 and the linkage shaft 531, and the number of the bevel gear sets 533 and the connecting shaft 532 is the same as that of the.

When the secondary linkage assembly 53 is in a working state, the driving motor 51 is started, the driving motor 51 drives the linkage shaft 531 to rotate along the axis of the linkage shaft 531, the linkage shaft 531 drives the connecting shaft 532 to rotate through the bevel gear set 533, the connecting shaft 532 drives the fourth wheel 534 to rotate, and then transmission of driving force for driving the drill rod 42 to rotate is completed.

Referring to fig. 6, the bevel gear set 533 includes a vertical wheel 5331 and a transverse wheel 5332, the vertical wheel 5331 is vertically disposed, the vertical wheel 5331 is sleeved outside the linkage shaft 531, the vertical wheel 5331 is fixedly connected to the outer side wall of the linkage shaft 531, the transverse wheel 5332 is horizontally disposed, the bottom end of the transverse wheel 5332 is fixedly connected to the top end of the connecting shaft 532, and the transverse wheel 5332 is meshed with the vertical wheel 5331. The linkage shaft 531 synchronously drives the four vertical wheels 5331 to rotate, the four vertical wheels 5331 drive the four transverse wheels 5332 to rotate, and the four transverse wheels 5332 drive the connecting shaft 532 to rotate, so that transmission between the connecting shaft 532 and the linkage shaft 531 is completed.

The implementation principle of the grooving machine for underground grouting continuous wall construction in the embodiment of the application is as follows: when a grooving machine is used for excavating grooves 6 for connecting wall construction, the grooving device 4 is aligned with the grooves 6 to be excavated, then the lifting device 3 is used for driving the grooving device 4 to be lowered, the drill rod 42 drives the drill bit 43 to gradually approach the construction ground, the driving motor 51 is started at the same time, the two rows of drill rods 42 are driven to synchronously rotate through the cooperation of the second-stage linkage assembly 53 and the first-stage linkage assembly 52, the drill rod 42 is continuously lowered, then the drill rod 42 drives the drill bit 43 to be inserted into the construction ground, grooving operation is carried out on the construction ground until the drill bit 43 drives the required depth of the grooves 6, the lifting device 3 is used for driving the grooving device 4 to be raised, cement slurry is injected into the grooves 6 through the grouting channel 421 in the rising process of the drill rod 42 until the drill bit 43 is far away from the construction ground and the cement slurry in the grooves 6 is fully filled, and, thereby forming the desired double width continuous wall.

The embodiment of the application also discloses a construction method of the underground grouting continuous wall. A construction method of underground grouting continuous wall comprises the following steps:

s1, measurement and positioning: accurately measuring the ground of a construction site, setting the axis position of the continuous wall, and determining a construction line segment;

s2, digging a wall protection slurry guide channel: two retaining wall slurry guide channels are dug on two sides of the position to be provided with the continuous wall respectively, the depth of each retaining wall slurry guide channel is set to be two meters, and the retaining wall slurry guide channels are communicated with a retaining wall slurry supply source through a circulating pipeline;

s3, wall protection slurry injection: before excavation, wall protection slurry in the wall protection slurry source is filled in the two wall protection slurry guide channels;

s4, positioning a grooving machine: moving the machine table 1 to a measured construction position, aligning the slotting device 4 with a position to be slotted, and keeping the slotting device 4 away from the construction ground;

s5, lowering the slotting device 4 for slotting, namely, starting a driving motor 51 when the slotting device 4 is lowered by using the lifting device 3, driving a linkage shaft 531 to rotate by using a driving piece, simultaneously driving a plurality of fourth wheels 534 to rotate by using the linkage shaft 531 through a bevel gear set 533 and a connecting shaft 532, driving a third wheel 523 to rotate by using the fourth wheels 534 through the transmission of a belt, driving two rows of drill rods 42 to synchronously rotate by using the third wheel 523 through the matching of a second wheel 522 and a first wheel 521 until the drill bit 43 is abutted against the construction ground, drilling holes on the construction ground by using the drill bit 43, continuing to lower the drill bit 43, inserting the drill bit 43 into the lower part of the construction ground to start the operation of drilling and slotting, assisting slotting by using wall protection slurry in the slotting process, and forming wall skins on the side walls of the slot 6 by using;

s6, recovering wall protection slurry: when the drill 43 reaches the position of the required grooving depth, stopping the grooving device 4, completing the grooving of the groove 6, and then recovering the wall protection slurry in the groove 6 to clean the groove 6;

s7, lifting the slotting device 4 and pouring cement slurry: after cleaning, respectively injecting cement slurry of a cement slurry source into the eight grouting channels 421, simultaneously starting the slotting device 4 to ascend and the driving motor 51, driving the drill bit 43 and the drill rod 42 to rotate again by the driving motor 51, enabling the cement slurry to reach the bottom wall of the groove 6 along the grouting channels 421, then gradually filling the groove 6 with the cement slurry along with the ascending of the drill rod 42, uniformly stirring and spreading the cement slurry by the drill bit 43, stirring out air bubbles in the cement slurry, stopping injecting the cement slurry until the drill bit 43 reaches the construction ground, and allowing the cement slurry to be fully filled after being deposited for a period of time;

s8, standing and solidifying: and finally, standing the cement slurry until the cement slurry is solidified into the continuous wall.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a groover for construction of slip casting diaphragm wall underground, includes board (1) and fluting device (4), fluting device (4) and board (1) sliding connection, fluting device (4) include mounting bracket (41), drilling rod (42) and drill bit (43), and drilling rod (42) are rotated with mounting bracket (41) and are connected, drill bit (43) and drilling rod (42) fixed connection, its characterized in that: the drill rods (42) are arranged in two rows in parallel, and drill holes drilled by the drill bits (43) in the two rows are tangentially arranged.

2. A groover for underground grouting continuous wall construction according to claim 1, characterized in that: the outer side of each drill rod (42) is sleeved with a first wheel (521), the first wheels (521) are fixedly connected with the drill rods (42), a second wheel (522) is arranged between every two adjacent rows of drill rods (42), the second wheels (522) are arranged in a plurality of numbers, the second wheels (522) are rotatably connected with the mounting frame (41), and the second wheels (522) are meshed with the four adjacent first wheels (521).

3. A groover for underground grouting continuous wall construction according to claim 2, characterized in that: the second wheel (522) is fixedly connected with a third wheel (523), the diameter of the third wheel (523) is smaller than the distance between two adjacent drill rods (42) in the same row, fourth wheels (534) are arranged on the outer sides of the two rows of drill rods (42), the fourth wheels (534) are rotatably connected with the mounting frame (41), the fourth wheels (534) and the third wheel (523) are driven by a belt, and the fourth wheels (534) and the third wheel (523) are provided with a plurality of wheels.

4. A groover for underground grouting continuous wall construction according to claim 3, characterized in that: a plurality of be provided with second grade linkage subassembly (53) between fourth wheel (534), second grade linkage subassembly (53) include universal driving shaft (531) and connecting axle (532), universal driving shaft (531) rotate with mounting bracket (41) and are connected, universal driving shaft (531) one end is connected with and is used for driving universal driving shaft (531) pivoted driving piece, connecting axle (532) one end and fourth wheel (534) fixed connection, be provided with between the other end and universal driving shaft (531) and be used for realizing driven driving piece between universal driving shaft (531) and connecting axle (532).

5. A groover for underground grouting continuous wall construction according to claim 4, characterized in that: the transmission is a bevel gear set (533).

6. A groover for underground grouting continuous wall construction according to claim 1, characterized in that: a grouting channel (421) for injecting cement slurry is formed in the drill rod (42), one end of the grouting channel (421) is communicated with a cement slurry source, and the other end of the grouting channel is communicated with the outer side wall of the drill bit (43).

7. A groover for underground grouting continuous wall construction according to claim 6, characterized in that: the side wall of the grouting channel (421) is fixedly connected with a heat preservation film (4211).

8. A groover for underground grouting continuous wall construction according to claim 6, characterized in that: grouting channels (421) of the two rows of drill rods (42) are arranged in a crossed mode.

9. A method of constructing an underground diaphragm wall according to any one of claims 1 to 8, wherein: the method comprises the following steps:

s1, measurement and positioning: measuring a construction site, and determining a construction line section;

s2, digging a wall protection slurry guide channel: digging two retaining wall slurry guide channels on two sides of the position to be provided with the continuous wall respectively, and communicating the retaining wall slurry guide channels with a retaining wall slurry supply source;

s3, wall protection slurry injection: before excavation, wall protection slurry source inner wall protection slurry is filled in a wall protection slurry guide channel;

s4, positioning a grooving machine: moving the grooving machine to reach the position close to the required grooving position, and aligning the grooving device (4) with the position to be grooved;

s5, lowering the slotting device (4) for slotting, namely starting a driving piece for driving a linkage shaft (531) to rotate, driving the linkage shaft (531) to rotate by the driving piece, simultaneously driving a plurality of fourth wheels (534) to rotate by the linkage shaft (531) through a bevel gear set (533) and a connecting shaft (532), driving a third wheel (523) to rotate by the fourth wheel (534) through the transmission of a belt, driving two rows of drill rods (42) to synchronously rotate by the third wheel (523) through the matching of a second wheel (522) and a first wheel (521), then enabling the slotting device (4) to go deep into the ground, and assisting slotting by using wall protection slurry;

s6, recovering wall protection slurry: when the drill bit (43) reaches the position of the required slotting depth, the slotting device (4) stops working, the slot (6) is opened, and then the slurry of the inner protective wall of the slot (6) is recycled;

s7, lifting the slotting device (4) and pouring cement slurry: cement slurry is injected into the grouting channel (421), the grooving device (4) is started to ascend, the drill bit (43) of the drill rod (42) is started to rotate, the cement slurry reaches the bottom wall of the groove (6) along the grouting channel (421), then the groove (6) is gradually filled with the cement slurry along with the ascending of the drill rod (42), and meanwhile the drill bit (43) is used for stirring and evenly paving the cement slurry until the drill bit (43) reaches the construction ground, and the injection of the cement slurry is stopped;

s8, standing and solidifying: and standing the cement slurry and solidifying the cement slurry into the continuous wall.

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