Building cement floor sinking, punching and grouting reinforcing device

Abstract

The utility model discloses a building cement ground sinking, punching and grouting reinforcing device which comprises a device body erected on the ground to be grouted and a punching and grouting device arranged on the device body. The punching and grouting device comprises a rotary motor installed on a motor support, a hollow drill rod connected with the rotary motor, and a hollow drill bit arranged at the lower end of the hollow drill rod, the central axis of the hollow drill rod is vertically arranged, and the hollow drill rod and the hollow drill bit are provided with grouting channels communicating up and down. And the grouting channel is connected with the slurry mixing bin through a pipeline. According to the utility model, the hidden danger problem that the existing building ground sinks or is in a goaf is solved, grouting reinforcement is carried out by adopting local drilling pressurization and grout injection, the ground maintenance efficiency is improved, excavation-free maintenance is realized, the labor amount is reduced, and the sinking ground environment is improved.

Description

Technical Field

[0001] The utility model relates to a device for reinforcing a sunken and perforated grouting of a building cement floor, in particular to a device for reinforcing a sunken and perforated grouting of a building cement floor which adopts local drilling and pressurized grout injection for reinforcement, does not require excavation for maintenance, and is convenient to use. Background Art

[0002] Due to factors such as ground water seepage, poor drainage, and geological structure changes, it is relatively common for a building cement floor to sink. Currently, the most common method is to remove the cement layer and re-compact it, which is time-consuming and laborious. The present invention uses a foamed grout filler to fill the sunken void formed underground. The main purpose of filling the void is to use the filling body for ground pressure management to provide guarantee conditions for controlling the continuous subsidence of the ground surface and effectively maintaining the ground environment. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a device for reinforcing a sunken and perforated grouting of a building cement floor, which has the characteristics of adopting local drilling and pressurized grout injection for reinforcement, not requiring excavation for maintenance, and being convenient to use.

[0004] To solve the technical problem of the present invention, the following technical solution is adopted: A device for reinforcing a sunken and perforated grouting of a building cement floor, the innovation of which lies in that: the device for reinforcing a sunken and perforated grouting of a building cement floor includes a device body erected on the ground to be grouted, and a drilling and grouting device arranged on the device body. The drilling and grouting device includes a rotary motor installed on a motor bracket, a hollow drill rod connected to the rotary motor and having a vertically arranged central axis, and a hollow drill bit arranged at the lower end of the hollow drill rod. A grouting channel communicating up and down is arranged on the hollow drill rod and the hollow drill bit, and the grouting channel is connected to a slurry mixing bin through a pipeline.

[0005] Preferably, the motor bracket is installed on a moving component slidably matched with a track, the track is vertically installed, the moving component is driven by a lifting motor to move up and down, and the rotary motor installed on the motor bracket moves up and down relative to the track.

[0006] Preferably, the slurry mixing bin is arranged on the device body, and the slurry in the slurry mixing bin is sequentially injected into the grouting channel through a mixing pump and a plunger pump.

[0007] Preferably, a foamer is arranged between the plunger pump and the grouting channel, and the output of the foamer is 5 - 15 L / min.

[0008] Preferably, the mixing pump is connected to a foaming agent tank through a pipeline, and a foaming agent is stored in the foaming agent tank.

[0009] Preferably, a stirrer driven by a stirring motor and extending into the slurry mixing bin is provided on the slurry mixing bin.

[0010] Preferably, a limiting rod parallel to the hollow drill pipe is provided on the device body, and a limit gauge for detecting the drilling depth of the hollow drill bit is provided at the lower end of the limiting rod.

[0011] Preferably, a spray pipe parallel to the hollow drill pipe is provided on the device body, a spray head is provided at one end of the spray pipe close to the hollow drill bit, and the other end of the spray pipe is connected to a pressurized water tank provided on the device body through a booster pump.

[0012] Preferably, the pressurized water tank is connected to a water tank provided on the device body through a water pump, and a filter is provided in the water tank.

[0013] Preferably, walking wheels are installed at the bottom of the device body between the device body and the ground to be grouted.

[0014] The advantages of the present utility model are as follows:

[0015] 1. In the present invention, the drill pipe and drill bit are first used to perform minimally invasive drilling on the ground void area, and then the slurry is added with a foaming agent and injected into the ground void area through the holes, reducing the workload and large-area damage to the road surface caused by excavation.

[0016] 2. The foaming agent can preferably solve the prominent contradiction among the fluidity, water consumption and quality of the filling slurry, improve the filling roof contact rate, improve the quality and efficiency of the filling body, improve the ground operation environment, and reduce the filling cost.

[0017] 3. Utilizing the lubricating effect of the foam generated by the present invention, on the premise that the mechanical indexes such as strength and fluidity meet the requirements of stope filling, the filling efficiency can be increased by more than 20%, the solid rate is increased from less than 70% at present to more than 95%, and the comprehensive filling cost is reduced by more than 10%, achieving multiple effects such as improving the overall quality of the filling body, reducing the filling cost, and improving the operation environment.

[0018] 4. The limit gauge is used to sense the hole depth. When the drill bit drills into the geological hard layer, the limiting rod prevents the drill pipe from feeding and stops drilling.

[0019] 5. The spray pipe is connected to the spray head, effectively preventing dust from rising during the drilling operation and protecting the operation environment. Description of the Drawings

[0020] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0021] Figure 1 It is a schematic structural diagram of a building cement ground sinking drilling and grouting reinforcement device of the present utility model.

[0022] Figure 2 It is a cross-sectional view of a device for reinforcing a sunken and drilled building cement floor by grouting according to the present utility model.

[0023] In the figure: 1-device body, 2-rotary motor, 3-moving component, 4-rail, 5-hollow drill pipe, 6-hollow drill bit, 7-limit rod, 8-limit instrument, 9-spray pipe, 10-spray head, 11-pressure increasing water tank, 12-pressure increasing pump, 15-slurry mixing bin, 16-stirring motor, 17-stirrer, 18-mixing pump, 19-foaming agent tank 20-foaming agent, 21-plunger pump, 22-foamer, 23-water tank, 24-water pump, 25-filter, 26-walking wheel. Specific implementation mode

[0024] The device for reinforcing a sunken and drilled building cement floor according to the present utility model includes a device body 1 erected on the ground to be grouted and a drilling and grouting device arranged on the device body 1. The drilling and grouting device includes a rotary motor 2 installed on a motor bracket, a hollow drill pipe 5 connected to the rotary motor 2 and vertically arranged with its central axis, and a hollow drill bit 6 arranged at the lower end of the hollow drill pipe 5. A grouting channel communicating up and down is arranged on the hollow drill pipe 5 and the hollow drill bit 6, and the grouting channel is connected to the slurry mixing bin through a pipeline. The present utility model solves the hidden danger problem of the current building ground subsidence or void area, adopts local drilling and pressure injection of slurry for grouting reinforcement, improves the ground maintenance efficiency, realizes non-excavation maintenance, reduces the labor amount, and improves the sunken ground environment.

[0025] In order to enable the hollow drill bit 6 to enter or leave the ground to be grouted before drilling and grouting or after grouting is completed, the motor bracket is installed on a moving component 3 slidably matched with a rail 4. The rail 4 is vertically installed, and the moving component 3 is driven by a lifting motor to move up and down. The lifting motor is not shown in the figure, and the rotary motor 2 installed on the motor bracket moves up and down relative to the rail 4.

[0026] In order to achieve the replenishment of the slurry in the grouting channel, a slurry mixing bin is arranged on the device body 1, and the slurry in the slurry mixing bin is injected into the grouting channel through a mixing pump 18 and a plunger pump 21 in sequence. A foamer 22 is arranged between the plunger pump 21 and the grouting channel, and the output of the foamer 22 is 5 - 15 L / min. The mixing pump 18 is connected to a foaming agent tank 19 through a pipeline, and a foaming agent 20 is stored in the foaming agent tank 19. The foaming agent 20 can preferably solve the prominent contradiction among the fluidity of the filling slurry, the water consumption and the quality of the filling body, improve the filling roof contact rate, improve the quality and efficiency of the filling body, improve the ground operation environment, and reduce the filling cost. By utilizing the lubricating effect of the foam generated by the foamer 22 of the present invention, on the premise that the mechanical indexes such as strength and fluidity meet the requirements of stope filling, the filling efficiency can be increased by more than 20%, the solid rate is increased from less than 70% at present to more than 95%, and the comprehensive filling cost is reduced by more than 10%, achieving multiple effects such as improving the overall quality of the filling body, reducing the filling cost, and improving the operation environment.

[0027] In order to facilitate the stirring of the slurry in the slurry mixing bin, a stirrer 17 driven by a stirring motor 16 is arranged on the slurry mixing bin and extends into the slurry mixing bin. In order to enable the device body 1 to move relative to the ground, a traveling wheel 26 is arranged at the bottom of the device body 1 between the device body 1 and the ground to be grouted.

[0028] In order to achieve the depth detection of the drilling depth, a limit rod 7 parallel to the hollow drill rod 5 is arranged on the device body 1, and a limit gauge 8 for detecting the drilling depth of the hollow drill bit 6 is arranged at the lower end of the limit rod 7. In order to effectively prevent dust from rising during the drilling operation, a spray pipe 9 parallel to the hollow drill rod 5 is arranged on the device body 1. A nozzle 10 is arranged at one end of the spray pipe 9 close to the hollow drill bit 6, and the other end of the spray pipe 9 is connected to a pressurized water tank 11 arranged on the device body 1 through a booster pump 12. The pressurized water tank 11 is connected to a water tank 23 arranged on the device body 1 through a water pump 24, and a filter 25 is arranged in the water tank 23.

[0029] In the present utility model, the plunger pump 21 can adjust and change the flow rate of the slurry, achieving the purpose of uniform filling and stable conveying of the slurry under pressure. When the plunger pump 21 works, the pressure is adjustable between 5 MPa and 15 MPa, and its rotation speed is 500 rpm - 700 rpm. Both the stirring motor 16 and the stirrer 17 are stepless variable frequency motors, which can adjust the stirring speed according to different medium slurries and viscosities to achieve the purpose of sufficient and uniform stirring.

[0030] The working process of the utility model is as follows: During operation, move the device to the ground subsidence area. Fill the water tank 23 of the device body 1 with water and fill the slurry mixing bin 15 with fillers. Start the rotary motor 2, and the rotary motor 2 drives the moving component 3, the hollow drill pipe 5, and the hollow drill bit 6 to start drilling. At the same time, open the nozzles 10 on the spray pipe 9 to effectively prevent dust from rising during the drilling operation and protect the working environment. When the depth gauge 8 senses the hole depth, when the drill bit drills into the hard geological layer, the limit rod 7 prevents the drill pipe from feeding and stops drilling. Open the stirring motor 16, the stirrer 17, the mixing pump 18, the plunger pump 21, and the foaming device 22, and start injecting the mixed slurry into the ground void through the hole in the center of the hollow drill pipe 5. After filling the slurry, turn off the grouting equipment and move the equipment to another area to continue the operation.

[0031] The above embodiments only represent several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A construction cement floor sinking drilling and grouting reinforcement device, characterized in that: The construction cement floor sinking drilling and grouting reinforcement device includes a device body erected on the ground to be grouted, a drilling and grouting device arranged on the device body, the drilling and grouting device includes a rotary motor installed on a motor bracket, a hollow drill rod connected to the rotary motor and with a vertically arranged central axis, and a hollow drill bit arranged at the lower end of the hollow drill rod. The hollow drill rod and the hollow drill bit are provided with grouting channels connected up and down, and the grouting channel is connected to a slurry mixing bin through a pipeline.

2. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 1, characterized in that: The motor bracket is installed on a moving component that is slidably matched with a track. The track is installed vertically. The moving component is driven by a lifting motor to move up and down. The rotary motor installed on the motor bracket moves up and down relative to the track.

3. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 1, characterized in that: The slurry mixing bin is arranged on the device body, and the slurry in the slurry mixing bin is injected into the grouting channel via a mixing pump and a plunger pump in sequence.

4. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 3, characterized in that: A foamer is arranged between the plunger pump and the grouting channel, and the output of the foamer is 5-15L / min.

5. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 3, characterized in that: The mixing pump is connected to the foaming agent tank through a pipeline, and the foaming agent tank is filled with foaming agent.

6. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 1, characterized in that: The slurry mixing bin is provided with a stirrer which extends into the slurry mixing bin and is driven by a stirring motor.

7. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 1, characterized in that: The device body is provided with a limit rod arranged in parallel with the hollow drill rod, and the limit rod is provided with a limit meter located at the lower end of the limit rod for detecting the drilling depth of the hollow drill bit.

8. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 7, characterized in that: The device body is provided with a spray pipe arranged in parallel with the hollow drill rod, one end of the spray pipe close to the hollow drill bit is provided with a spray head, and the other end of the spray pipe is connected to a booster water tank arranged on the device body through a booster pump.

9. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 8, characterized in that: The pressurized water tank is connected to a water tank arranged on the device body through a water pump, and a filter is arranged in the water tank.

10. A construction cement floor sinking drilling and grouting reinforcement device as claimed in claim 1, characterized in that: Traveling wheels installed at the bottom of the device body are arranged between the device body and the ground to be grouted.

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