CN111927495B - Intelligent grouting equipment suitable for novel anchoring material and construction method thereof - Google Patents
Intelligent grouting equipment suitable for novel anchoring material and construction method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 131
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000004873 anchoring Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000003756 stirring Methods 0.000 claims abstract description 91
- 239000002002 slurry Substances 0.000 claims abstract description 65
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009775 high-speed stirring Methods 0.000 claims description 43
- 238000012546 transfer Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 239000004035 construction material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract 1
- 238000007569 slipcasting Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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Abstract
The invention discloses intelligent grouting equipment suitable for a novel anchoring material and a construction method thereof, wherein the grouting equipment comprises a filling module, a stirring module, a grouting module, a control module, a grouting feedback module and the like; the filling module is used for automatically filling the novel anchoring agent and water, the control module controls the flow of filling amount and the total filling amount, and the stirring module is used for fully stirring the grouting material and adjusting the stirring speed by controlling the rotating speed of the motor; the grouting module is mainly used for sucking and pressurizing grouting slurry through a grouting pump; the grouting feedback module comprises a flowmeter, a pressure gauge and a wireless data acquisition unit which are arranged on a grouting pipeline, and the grouting feedback module realizes fine adjustment of the water-to-fuel ratio in the grouting process through a grouting parameter collection module arranged on a grouting pipe and the control of the control module. The scheme aims at the high-coagulability grouting material, realizes automation and standardization of grouting construction, effectively improves the construction efficiency and ensures the grouting quality.
Description
Technical Field
The invention relates to the technical field of grouting equipment, in particular to intelligent grouting equipment suitable for a novel anchoring material and a construction method thereof.
Background
Along with the development of grouting technology, novel high-coagulability grouting materials are continuously applied to anchor cable construction, have the problems of large viscosity, poor flowability, high coagulation speed and the like, and require strict control of water-material ratio, construction parameters and grouting parameters in grouting construction and timely and flexible adjustment of the grouting parameters.
The existing anchor cable grouting construction system consists of a mixing tank, a grouting pump and a grouting pipeline, the whole process is mainly controlled by manpower, the controllability of the mixing tank is poor, the pressure control of the grouting pump is poor, the water-material ratio control is poor, the construction flexibility is poor due to problems, and the whole grouting effect is poor; particularly, the high-coagulability characteristic adaptability of the novel anchoring material is poor, and construction problems such as pipe blockage, insufficient injection pressure and the like frequently occur in the grouting process. Aiming at the particularity of the novel anchoring material, no good solution is provided for grouting construction at present.
Disclosure of Invention
Aiming at the defects in the prior art and aiming at the grouting material with strong coagulability, the invention provides intelligent grouting equipment suitable for a novel anchoring material and a construction method thereof for realizing intelligent management and construction of grouting operation in rapid anchor cable construction.
The invention is realized by adopting the following technical scheme: an intelligent grouting device suitable for a novel anchoring material comprises a filling module, a stirring module, a grouting module, a control module, a grouting feedback module and an auxiliary module, wherein the filling module, the stirring module, the grouting module and the grouting feedback module are all electrically connected with the control module;
the filler module is used for automatically filling the novel anchoring material and water, and the control module controls the flow of filling amount and the total amount of the filler, so that the accuracy of the water-material ratio is effectively ensured;
the stirring module is used for fully stirring the grouting material and adjusting the stirring speed by controlling the rotating speed of the motor through the control module;
the grouting module sucks and pressurizes the grouting liquid through a grouting pump;
the grouting feedback module comprises a grouting parameter collecting module, the grouting parameter collecting module comprises a flowmeter, a pressure gauge and a wireless data acquisition unit which are arranged on a grouting pipeline and used for monitoring the pressure and flow conditions of different positions of the grouting pipe and sending collected data to the control module through the wireless data acquisition unit.
Further, the filler module comprises a material box, a material suction machine, a material suction hose, a water tank, a water pump and a water feeding pipe;
the material box is positioned at the front end of the whole device and is conical, the material suction machine is positioned at the upper part of the bracket, one end of the material suction hose is connected with the conical bottom of the material box, the other end of the material suction hose is connected with the material suction machine, and the joints of the two ends of the material suction hose are connected by hoops; the water tank is arranged at the lower part of the high-speed stirring barrel of the stirring module; the water pump is arranged at the upper part of the water tank and is connected with the lower part of the water tank through a water delivery pipe; the material suction machine and the water pump are connected with the control module through cables.
Furthermore, in order to ensure the material storage problem in the material box, a straight-through discharging flange is arranged at the conical bottom of the material box, the straight-through discharging flange is connected with a material sucking hose through a hoop, the material sucking hose is a steel wire hose, and the upper end and the lower end of the steel wire hose are respectively connected with a material sucking machine and the material box through the hoops.
Further, the stirring module comprises an upper high-speed stirring barrel, a high-speed stirring motor, a low-speed stirring motor, a lower low-speed stirring barrel and a slurry transfer pipe; the upper high-speed stirring barrel is arranged at the top end of the whole equipment, and the upper part of the upper high-speed stirring barrel is provided with a high-speed stirring motor for fully stirring the anchoring agent and the water; the fully stirred grouting slurry is conveyed into a lower low-speed stirring barrel through a slurry conveying pipe; the slurry transfer pipe is arranged at the expansion end of the grouting barrel at the lowest part of the high-speed stirring barrel, is provided with a manual valve and an electric valve, and is controlled to be opened and closed through manpower and electric power so as to realize effective transfer of slurry; the lower low-speed stirring barrel is arranged at the lower part of the side of the upper high-speed stirring barrel, and the upper part of the lower low-speed stirring barrel is provided with a low-speed stirring motor for ensuring the fluidity of grouting slurry and preventing consolidation.
Furthermore, the lower part of the upper high-speed stirring barrel is an inclined plane (the angle is less than or equal to 5 degrees) and inclines towards the direction of the lower low-speed stirring barrel, so that the slurry can flow fully; the lower part of the lower low-speed stirring barrel is an inclined plane (the angle is less than or equal to 5 degrees) and inclines towards the direction of the slurry suction pipe of the grouting module, so that the slurry is fully sucked, and the slurry is prevented from being retained and solidified.
Further, the grouting module comprises a grouting pipe fixing buckle, a grouting pump, a slurry suction pipe, an air pump, an air pipe and a grouting pipe; the grouting pump is arranged at the rearmost end of the whole equipment, the slurry suction pipe is a steel wire hose with the diameter of 40cm, one end of the slurry suction pipe extends into the bottom of the lower low-speed stirring barrel and is fixedly buckled on the inner wall of the lower low-speed stirring barrel by the grouting pipe, and the other end of the slurry suction pipe is connected with the grouting pump; the grouting pipe fixing buckle is a circular ring with the diameter of 45cm, one side of the grouting pipe fixing buckle is welded on the inner wall of the stirring barrel, and the grouting pipe fixing buckle is used for inserting, limiting and pulling out replacement of the slurry suction pipe; the air pump is connected with a grouting pump through an air conveying pipe, and grouting pressure is finely adjusted by applying a certain amount of air pressure; and injecting the pressurized slurry into the anchor cable drill hole through the grouting pipe.
Furthermore, a distribution box and a control box are arranged on the support, and the distribution box is arranged at the lower part of the control box and used for distribution work of the whole equipment; the bottom end of the bracket is provided with hydraulic supporting legs, a driving wheel and universal wheels, and the hydraulic supporting legs are arranged at four corners of the bracket and used for guaranteeing the stability and the level of equipment during grouting on uneven ground; the driving wheel is arranged at the rear part of the device, is powered by the distribution box and is used for driving the whole equipment to move forward; the universal wheel sets up at the equipment front end for equipment turns.
The invention also provides a construction method of the intelligent grouting equipment suitable for the novel anchoring material, which comprises the following steps:
(1) construction preparation:
firstly, before construction, grouting equipment is conveyed to a construction site, the front end of the grouting equipment faces a stockpiling area, and the rear end of the grouting equipment faces a construction area;
adjusting the hydraulic supporting legs to enable the equipment to be in a horizontal state;
connecting a grouting pipe and installing a grouting parameter collecting module;
filling water into the water tank, starting a water pump, and washing the whole grouting pipeline;
closing the water pump to complete the pipe washing;
adding vector anchoring agent to the material box according to the required quantity of construction materials;
(2) filling: starting a material suction machine, and adding the material into the upper high-speed stirring barrel through a material suction hose;
(3) adding water and stirring: starting a high-speed stirring motor, and controlling a rotating speed adjusting button of the stirring motor to be set to a designed rotating speed; simultaneously, a water pump is started to inject water, and the flow rate of the injected water is controlled by a water pump flow adjusting button; after the water is added to the designed water amount and the anchoring dosage, the filling is automatically stopped; and after fully stirring for 5 minutes, opening the slurry transfer pipe, enabling the slurry to flow into a lower low-speed stirring barrel, stirring at low speed by using a low-speed stirring motor, and adjusting the rotating speed by using a stirring motor rotating speed adjusting button.
(4) Grouting: starting a grouting pump, adjusting grouting parameters through a grouting pressure gear adjuster, a grouting pump rotating speed adjusting button and an air pump flow adjusting button, and performing grouting construction through a grouting pipe;
(5) construction feedback fine adjustment: in the grouting process, the grouting parameter collecting module sends the collected grouting pressure and slurry flow parameters to remote control software through wireless signals, parameter fine adjustment instructions are manually or automatically given through parameter analysis, and the parameters are received by the control box through a wireless instruction/data receiver; at the moment, manual fine adjustment or automatic fine adjustment can be selected; the parameter adjusting instruction is transmitted to each controller needing parameter adjustment through a connecting cable; the grouting quality is ensured;
(6) completing construction; after the hole is drilled and the slurry is reversed, the grouting pipe is pulled out of the drilled hole; at the moment, a water pump is started, and the grouting pipeline is cleaned by using large-flow clear water until the water flowing out of the grouting pipe orifice is clear; and (5) closing the power supply of the equipment, recovering the grouting pipe, and transporting the grouting equipment to the next place.
Further, when the control module performs fine adjustment according to the grouting parameters acquired by the grouting feedback module, in order to ensure the transferability of grout and reduce the loss of grouting pressure along the way, a relationship between a water-material ratio and a pressure loss is established, and the effectiveness of the grouting parameters and the grouting effect are ensured by fine adjustment of the water-material ratio in a suggested range;
if the flowing state of the slurry in the grouting pipe is laminar flow, the on-way pressure loss of the slurry in the pipeline is as follows:
the local pressure loss is:
the total pressure loss in the pipe is then:
wherein the content of the first and second substances,
lambda is the on-way resistance coefficient of the pipeline;
l is the length of the pipeline;
d is the inner diameter of the pipeline;
ζ is the local drag coefficient of the pipeline;
ρ is the fluid density;
v is the average flow velocity in the pipe.
According to the definition of the water-material ratio, p is expressed as:
wherein the content of the first and second substances,
mwadding water;
mgthe additive amount of the novel anchoring agent is added;
ρwthe density of water is a fixed value;
ρgthe density of the novel anchoring agent is a constant value;
alpha is water-material ratio and has a certain control range.
B is defined as:
equation (5) may be converted into:
ρ＝B(α+1) (6)
in addition, according to the relationship between the flow rate and the flow velocity, the following can be obtained:
wherein the content of the first and second substances,
Qiis the initial flow rate;
Qjflow of monitoring points;
a is the area of the inner section of the grouting pipe;
and r is the radius of the inner section of the grouting pipe.
In addition, in the equipment, the joint of the grouting pipes adopts the same-diameter design, so that the local pressure loss can be established as 0; meanwhile, the formula (3) in the formulae (6) and (7) can be obtained:
wherein the content of the first and second substances,
g is the acceleration of gravity;
s is the specific resistance of the pipeline, and the hydraulic calculation manual can be searched for both s and lambda.
Therefore, the relation between the water-material ratio of the slurry and the pressure loss is as follows:
the formula (9) can realize the fine adjustment of the water-material ratio through the grouting pressure loss.
Compared with the prior art, the invention has the advantages and positive effects that:
the slip casting equipment that this scheme provided is applicable to novel anchor material, and to the strong slip casting material of coagulability, intelligent management, the construction of slip casting operation in quick anchor rope construction are realized to the cooperation design through filler module, stirring module, slip casting module, control module and slip casting feedback module to effectively improve the efficiency of construction, guarantee slip casting quality.
Drawings
Fig. 1 is a schematic diagram of a control system of an intelligent grouting device according to an embodiment of the invention;
FIG. 2 is a schematic side view of an intelligent grouting apparatus according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of an intelligent grouting device according to an embodiment of the invention;
FIG. 4 is a schematic structural view of the upper high-speed mixing tank shown in FIG. 3;
FIG. 5 is a schematic structural view of the lower mixing tank in FIG. 3;
fig. 6 is a schematic diagram of a control button of the control box according to the embodiment of the invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and thus, the present invention is not limited to the specific embodiments disclosed below.
Embodiment 1, an intelligent grouting device suitable for a novel anchoring material, comprising a filling module, a stirring module, a grouting module, a control module, a grouting feedback module and an auxiliary module, wherein the filling module, the stirring module, the grouting module and the grouting feedback module are all connected with the control module, as shown in fig. 2-3;
the auxiliary modules comprise a support 20, the support 20 is a framework for connecting the modules, a distribution box 19 and a control box 18 are arranged on the support 20, and the distribution box 19 is arranged at the lower part of the control box 18 and used for power distribution work of the whole equipment; the bottom end of the bracket 20 is provided with hydraulic supporting feet 21, a driving wheel 22 and a universal wheel 23, the hydraulic supporting feet 21 are arranged at four corners of the bracket 20 and are used for guaranteeing the stability and the level of the equipment when grouting is carried out on uneven ground; the driving wheel 22 is arranged at the rear part of the device and is powered by the distribution box 19 and is used for driving the whole equipment to advance; the universal wheel 23 is arranged at the front end of the equipment and used for turning the equipment.
The filler module is used for automatically filling a novel anchoring agent (anchoring material) and water, the flow of filling amount and the total amount of the filler are controlled by the control module, and the accuracy of water-material ratio is effectively guaranteed, and the filler module comprises a material box 1, a material suction machine 2, a material suction hose 3, a water tank 4, a water pump 5 and a water adding pipe 6; the feed box 1 is positioned at the front end of the whole equipment, is conical and comprises a main stuffing box and an auxiliary stuffing box (which are separated from the middle and are arranged into the main stuffing box and the auxiliary stuffing box), and the volumes of the two stuffing boxes are 1.23t when the two stuffing boxes are consistent; the material suction machine 2 is positioned at the upper part of the bracket 20, and a discharge port of the material suction machine extends into the high-speed stirring barrel 7 of the stirring module by 20cm in order to reduce the loss of the added anchoring agent; one end of the material suction hose 3 is connected with the conical bottom of the material box 1, the other end of the material suction hose is connected with the material suction machine 2, and the joints of the two ends of the material suction hose are connected by hoops; the water tank 4 is arranged at the lower part of the upper high-speed stirring barrel 7; the water pump 5 is arranged at the upper part of the water tank 4, the water pump 5 is connected with the lower part of the water tank 4 through a water conveying pipe, and the water pump 5 adopts an electric centrifugal pump and is used for controlling the total water filling amount; the water feeding pipe 6 extends into the upper high-speed stirring barrel 7, and the water outlet of the water feeding pipe 6 extends into the barrel by 20 cm; the material suction machine 2 and the water pump 5 are both connected with the control module through cables.
Injecting the grouting material in the material box 1 into an upper high-speed stirring barrel 7 through a material suction hose 3 by controlling a motor of a material suction machine, and arranging two material suction machines 2 to be connected with the material box 1 in order to ensure the feeding amount of the material; in addition, in order to ensure the material storage problem in the material box 1, a straight-through material discharging flange is welded at the conical bottom of the material box 1 and is connected with the material sucking hose 3 through a hoop; the material suction hose 3 is a steel wire hose, the upper end and the lower end of the material suction hose are respectively connected with the material suction machine 2 and the material box 1 through anchor ears, and water in the water tank 4 is pumped into the high-speed stirring barrel by controlling the motor of the water pump 5.
The stirring module is used for fully stirring the grouting material and adjusting the stirring speed by controlling the rotating speed of the motor; the stirring module comprises an upper high-speed stirring barrel 7, a high-speed stirring motor 8, a low-speed stirring motor 9, a lower low-speed stirring barrel 10 and a slurry transfer pipe 11; the upper high-speed stirring barrel 7 is arranged at the top end of the whole equipment, and the upper part of the upper high-speed stirring barrel is provided with a high-speed stirring motor 8 for fully stirring the anchoring agent and the water; the lower part of the upper high-speed stirring barrel 7 is an inclined plane (the angle is less than or equal to 5 degrees) and inclines towards the direction of the lower low-speed stirring barrel 10, so that the slurry can fully flow; the fully stirred grouting slurry is conveyed into a lower low-speed stirring barrel 10 through a slurry transfer pipe 11; as shown in fig. 4, the slurry transfer pipe 11 is installed at the enlarged end 11-1 of the grouting barrel at the lowest position of the upper high-speed stirring barrel 7, and is provided with a manual valve 11-2 and an electric valve 11-3, and the opening and closing of the manual valve and the electric valve are controlled by manpower and electric power to realize the effective transfer of the slurry; the lower low-speed stirring barrel 10 is arranged at the lateral lower part of the upper high-speed stirring barrel 7, and the upper part is provided with a low-speed stirring motor 9 for ensuring the fluidity of grouting slurry and preventing consolidation; the lower part of the lower low-speed stirring barrel 10 is an inclined plane (the angle is less than or equal to 5 degrees) and inclines towards the direction of a slurry suction pipe 13 of the grouting module, so that the slurry is ensured to be fully sucked, and the slurry is prevented from being left and solidified;
by arranging the upper high-speed stirring barrel 7 and the lower low-speed stirring barrel 10, the upper high-speed stirring barrel 7 can fully stir water and the anchoring agent through high-speed stirring, so that the materials are fully mixed, and gas is exhausted; the lower low-speed stirring barrel 10 enables the grouting material to be in a flowing state through low-speed stirring, and prevents the slurry from standing and solidifying in the grouting process; the bottom of the upper high-speed stirring barrel 7 is provided with a certain angle, and the most concave part in the middle is provided with a connecting pipe which is connected with the lower low-speed stirring barrel; the upper part of the connecting pipe is provided with a communicating valve which is opened and closed manually or automatically; the bottom of the lower low-speed stirring barrel 10 is also provided with an inclined surface which is inclined to one side of the pulp suction pipe.
The grouting module mainly performs suction and pressurized grouting of grout through a two-cylinder grouting pump, and as shown in fig. 2 and 5, the grouting module comprises a grouting pipe fixing buckle 10-1, a grouting pump 12, a grout suction pipe 13, an air pump 14, an air pipe 15 and a grouting pipe 16; the grouting pump 12 is arranged at the rearmost end of the whole equipment, and a 11kW double-cylinder pump is adopted in the grouting pump; the slurry suction pipe 13 is a steel wire hose with the diameter of 40cm, one end of the slurry suction pipe extends into the bottom of the lower low-speed stirring barrel 10 and is fixed on the inner wall of the lower low-speed stirring barrel by a grouting pipe fixing buckle 10-1, and the other end of the slurry suction pipe is connected with the grouting pump 12; the grouting pipe fixing buckle 10-1 is a circular ring with the diameter of 45cm, one side of the grouting pipe fixing buckle is welded on the inner wall of the stirring barrel, and the grouting pipe fixing buckle is used for inserting, limiting and pulling out the replacement of the slurry suction pipe 13; the air pump 14 is connected with the grouting pump 12 through an air conveying pipe 15, and grouting pressure is finely adjusted by applying a certain amount of air pressure; the pressurized slurry is injected into the anchor cable drill hole through the grouting pipe 16;
the grouting flow and the grouting pressure are adjusted by controlling the rotating speed of the grouting pump; the grouting pressure is timely adjusted by pressurizing through the air pump, and the stability of the grouting pressure is ensured; a grouting pressure gauge is arranged on the upper side of the grouting pump, and changes of grouting parameters are displayed in real time; the grouting pump is connected with the lower low-speed stirring barrel through a thin steel wire material suction pipe; one side of the connecting stirring barrel is inserted into a circular clamping groove welded on the inner wall of the stirring barrel, so that the stirring barrel is convenient to pull out, clean and replace.
The control module comprises a control box, a controller and a connecting circuit, wherein the controller and the connecting circuit are connected with each control motor, as shown in figure 6, each gear regulator and a control knob are arranged inside a control box 18 (a stirring motor gear regulator 18-1, a stirring motor 1 rotating speed regulating knob 18-2, a stirring motor 2 rotating speed regulating knob 18-3, a material suction motor gear regulator 18-4, a material suction motor 1 flow regulating knob 18-5, a material suction motor 2 flow regulating knob 18-6, a water pump gear regulator 18-7, a water pump flow regulating knob 18-8, a grouting pressure gear regulator 18-9, a grouting pump rotating speed regulating knob 18-10, an air pump flow regulating knob 18-11, a power supply control knob 18-12, a grouting data real-time display screen 18-13, a wireless instruction/data receiver 18-14 and a connecting cable 18-15 are arranged on the control box), for manual adjustment of the respective controls; the power supply control button 18-12 is used for controlling the power supply condition of the whole controller; the controller receives data transmitted by the grouting parameter collection module 17 through the wireless instruction/data receiver 18-14 and displays the data through the grouting data real-time display screen 18-13; the controller receives the instruction transmitted by the remote software through the wireless instruction/data receiver 18-14, and automatically adjusts each grouting parameter through the built-in software; the connecting cables 18-15 are used for connecting the suction machine 2, the water pump 5, the high-speed stirring motor 8, the low-speed stirring motor 9, the grouting pump 12 and the air pump 14 and are used for manual or automatic control; in this embodiment, the control box can adopt automatic or manual adjustment, as shown in fig. 1, carry out data storage through far-end cloud ware during automatic adjustment to accessible wifi, 4G signal carry out data transmission.
The grouting feedback module comprises a flow meter, a pressure meter and a wireless data acquisition unit which are arranged on a grouting pipeline, and is mainly realized by a grouting parameter collection module 17 arranged on a grouting pipe 16 and combined with the control of a control module, the grouting parameter collection module 17 is arranged on the grouting pipe 16 in sections, one grouting parameter collection module is arranged at each 5-10 m, and the grouting parameter collection module 17 comprises a connector, a pressure meter, a flow meter and a wireless data acquisition instrument which are assembled and used for monitoring the pressure and flow conditions of different positions of the grouting pipe and sending the collected data to remote control software through the wireless data acquisition instrument;
a wireless data receiver is arranged in the control box, so that the control box can receive a control instruction sent by a remote controller on one hand and can receive real-time data in a grouting process on the other hand; a display screen is arranged in the control cabinet and can receive real-time data of grouting pressure and grouting flow in the grouting process; and the wireless data acquisition device on the grouting pipeline and the wireless data receiver inside the control case can perform data transmission through wifi and 4G.
In this embodiment, when the control module performs fine adjustment according to the grouting parameters acquired by the grouting feedback module, in order to ensure transferability of grout and reduce loss of grouting pressure along the way, a relationship between a water-material ratio and a pressure loss is established, and the effectiveness of the grouting parameters and the grouting effect are ensured by fine adjustment of the water-material ratio in a suggested range;
if the flowing state of the slurry in the grouting pipe is laminar flow, the on-way pressure loss of the slurry in the pipeline is as follows:
the local pressure loss is:
the total pressure loss in the pipe is then:
wherein, the first and the second end of the pipe are connected with each other,
lambda is the on-way resistance coefficient of the pipeline;
l is the length of the pipeline;
d is the inner diameter of the pipeline;
ζ is the local drag coefficient of the pipeline;
ρ is the fluid density;
v is the average flow velocity in the pipe.
According to the definition of the water-material ratio, p is expressed as:
wherein, the first and the second end of the pipe are connected with each other,
mwadding water;
mgthe additive amount of the novel anchoring agent is added;
ρwthe density of water is a fixed value;
ρgthe density of the novel anchoring agent is a constant value;
alpha is water-material ratio and has a certain control range.
B is defined as:
equation (5) may be converted into:
ρ＝B(α+1) (6)
in addition, according to the relationship between the flow rate and the flow velocity, the following can be obtained:
wherein the content of the first and second substances,
Qiis the initial flow rate;
Qjflow of monitoring points;
a is the area of the inner section of the grouting pipe;
and r is the radius of the inner section of the grouting pipe.
In addition, in the equipment, the joint of the grouting pipes adopts the same-diameter design, so that the local pressure loss can be established as 0; meanwhile, the formula (3) in the formulae (6) and (7) can be obtained:
wherein the content of the first and second substances,
g is the acceleration of gravity;
s is the specific resistance of the pipeline, and the hydraulic calculation manual can be searched for both s and lambda.
Therefore, the relation between the water-material ratio of the slurry and the pressure loss is as follows:
the formula (9) can realize the fine adjustment of the water-material ratio through the grouting pressure loss.
Through the design of above slip casting equipment, realize the design and the control of the intelligent slip casting equipment of slip casting operation in quick anchor rope construction, realize automation, the standardization of slip casting construction to effectively improve the efficiency of construction, ensure grouting quality.
(1) construction preparation:
firstly, before construction, grouting equipment is conveyed to a construction site, the front end of the grouting equipment faces a stockpiling area, and the rear end of the grouting equipment faces a construction area;
adjusting the hydraulic supporting legs 21 to enable the equipment to be in a horizontal state;
connecting a grouting pipe 16 and installing a grouting parameter collecting module 17;
fourthly, filling water into the water tank 4, starting the water pump 5, and washing the whole grouting pipeline;
closing the water pump 5 to complete the pipe washing;
adding vector anchoring agent to the material box 1 according to the required quantity of construction materials;
(2) filling: starting the material suction machine 2, and adding the material into the upper high-speed stirring barrel 7 through the material suction hose 3;
(3) adding water and stirring: starting the high-speed stirring motor 8, and controlling the rotating speed adjusting button 18-2 of the stirring motor 1 to be set to the designed rotating speed; simultaneously, the water pump 5 is started to inject water, and the water injection flow is controlled by a water pump flow adjusting button 18-8; after the water is added to the designed water amount and the anchoring dosage, the system automatically stops filling; and after fully stirring for 5 minutes, opening the slurry transfer pipe 11, allowing the slurry to flow into the lower low-speed stirring barrel 10, stirring at a low speed by using a low-speed stirring motor 9, and adjusting the rotating speed by using a rotating speed adjusting button 18-3 of a stirring motor 2.
(4) Grouting: starting a grouting pump 12, adjusting grouting parameters through a grouting pressure gear regulator 18-9, a grouting pump rotating speed adjusting button 18-10 and an air pump flow adjusting button 18-11, and performing grouting construction through a grouting pipe 16;
(5) construction feedback fine adjustment: in the grouting process, the grouting parameter collection module 17 sends the collected grouting pressure and slurry flow parameters to remote control software through wireless signals, manually or automatically gives parameter fine adjustment instructions through parameter analysis, and the parameters are received by the control box 18 through the wireless instruction/data receiver 18-14; at the moment, manual fine adjustment or automatic fine adjustment can be selected; the parameter adjusting instruction is transmitted to each controller needing parameter adjustment through connecting cables 18-15; the grouting quality is ensured;
(6) completing construction; after the hole is drilled and the slurry is reversed, the grouting pipe is pulled out of the drilled hole; at the moment, the water pump 5 is started, and the grouting pipeline is cleaned by using large-flow clear water until the water flowing out of the grouting pipe orifice is clear; and (5) closing the power supply of the equipment, recovering the grouting pipe, and transporting the grouting equipment to the next site.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. The intelligent grouting equipment suitable for the novel anchoring material is characterized by comprising a filling module, a stirring module, a grouting module, a control module, a grouting feedback module and an auxiliary module, wherein the filling module, the stirring module, the grouting module and the grouting feedback module are all electrically connected with the control module, and the auxiliary module comprises a support (20) which is a framework for connecting all the modules;
the filling module is used for automatically filling the novel anchoring material and water, the control module controls the flow of filling amount and the total filling amount, the control module performs fine adjustment according to grouting parameters acquired by the grouting feedback module, remote control software establishes the relation between water-material ratio and pressure loss, and fine adjustment is realized in a suggested range through the water-material ratio;
the stirring module is used for fully stirring the grouting material and adjusting the stirring speed by controlling the rotating speed of the motor through the control module; the stirring module comprises an upper high-speed stirring barrel (7), a high-speed stirring motor (8), a low-speed stirring motor (9), a lower low-speed stirring barrel (10) and a slurry transfer pipe (11); the high-speed stirring barrel (7) is arranged at the top end of the whole equipment, and the high-speed stirring motor (8) is arranged at the upper part of the high-speed stirring barrel; the fully stirred grouting slurry is conveyed into a lower low-speed stirring barrel (10) through a slurry transfer pipe (11); the slurry transfer pipe (11) is arranged at the lowest expanded end (11-1) of the grouting barrel of the upper high-speed stirring barrel (7), and is provided with a manual valve (11-2) and an electric valve (11-3), the lower low-speed stirring barrel (10) is arranged at the lower part of the side of the upper high-speed stirring barrel (7), and the upper part is provided with a low-speed stirring motor (9); the lower part of the upper high-speed stirring barrel (7) is an inclined plane, the inclination angle is less than or equal to 5 degrees, and the lower high-speed stirring barrel is inclined towards the direction of the lower low-speed stirring barrel (10); the lower part of the lower low-speed stirring barrel (10) is an inclined plane, the inclination angle is less than or equal to 5 degrees, and the inclined plane inclines towards the direction of a slurry suction pipe (13) of the slurry injection module;
the grouting module sucks and pressurizes and grouts the grout through a grouting pump;
the grouting feedback module is used for monitoring the pressure and flow conditions of different positions of the grouting pipe and sending collected data to the control module, the grouting feedback module comprises a grouting parameter collecting module (17), and the grouting parameter collecting module (17) comprises a flow meter, a pressure meter and a wireless data collector which are arranged on a grouting pipeline.
2. The intelligent grouting device suitable for the novel anchoring material as claimed in claim 1, wherein: the filler module comprises a material box (1), a material suction machine (2), a material suction hose (3), a water tank (4), a water pump (5) and a water feeding pipe (6);
the material box (1) is positioned at the front end of the whole equipment, and the material suction machine (2) is positioned at the upper part of the bracket (20); one end of the material suction hose (3) is connected with the bottom of the material box (1), the other end of the material suction hose is connected with the material suction machine (2), and the joints of the two ends of the material suction hose are connected by hoops; the water pump (5) is arranged on the upper portion of the water tank (4), the water pump (5) is connected with the lower portion of the water tank (4) through a water conveying pipe, the water feeding pipe (6) extends into the high-speed stirring barrel (7) of the stirring module and penetrates into the barrel for a certain distance, and the material suction machine (2) and the water pump (5) are connected with the control module through cables.
3. The intelligent grouting device suitable for the novel anchoring material as claimed in claim 2, wherein: the material box (1) is conical, a straight-through discharging flange is arranged at the conical bottom of the material box, the straight-through discharging flange is connected with the material suction hose (3) through a hoop, and the material suction hose (3) is a steel wire hose.
4. The intelligent grouting device suitable for the novel anchoring material as claimed in claim 1, wherein: the grouting module comprises a grouting pipe fixing buckle (10-1), a grouting pump (12), a slurry suction pipe (13), an air pump (14), an air conveying pipe (15) and a grouting pipe (16); the grouting pump (12) is arranged at the rearmost end of the whole equipment, the slurry suction pipe (13) adopts a steel wire hose, one end of the slurry suction pipe extends into the bottom of the lower low-speed stirring barrel (10) and is fixed on the inner wall of the lower low-speed stirring barrel by a grouting pipe fixing buckle (10-1), and the other end of the slurry suction pipe is connected with the grouting pump (12); the grouting pipe fixing buckle (10-1) is of a circular ring structure welded on the inner wall of the stirring barrel; the air pump (14) is connected with the grouting pump (12) through an air conveying pipe (15), and the pressurized grout is injected into anchor cable drill holes through a grouting pipe (16).
5. The intelligent grouting device suitable for the novel anchoring material as claimed in claim 1, wherein: the bracket (20) is provided with a distribution box (19) and a control box (18), and the distribution box (19) is arranged at the lower part of the control box (18) and is used for the distribution work of the whole equipment; the bottom end of the bracket (20) is provided with hydraulic supporting legs (21), a driving wheel (22) and a universal wheel (23), the hydraulic supporting legs (21) are arranged at four corners of the bracket (20), and the driving wheel (22) is arranged at the rear part of the device and is powered by a distribution box (19) and used for driving the whole equipment to move forward; the universal wheel (23) is arranged at the front end of the equipment and used for turning the equipment.
6. The construction method of the intelligent grouting equipment suitable for the novel anchoring material is characterized by comprising the following steps of: the method comprises the following steps:
step (1), construction preparation;
step (2), filling: starting the material suction machine (2), and adding the material into the upper high-speed stirring barrel (7) through the material suction hose (3);
adding water and stirring: starting a high-speed stirring motor (8), simultaneously starting a water pump (5) to inject water, and automatically stopping filling after adding the water to the designed water quantity and the anchoring dosage; after the slurry is fully stirred, the slurry transfer pipe (11) is opened, the slurry flows into the lower low-speed stirring barrel (10), and the low-speed stirring is carried out through the low-speed stirring motor (9);
grouting in step (4): starting a grouting pump (12), setting grouting parameters, and performing grouting construction through a grouting pipe (16);
and (5) construction feedback fine adjustment: in the grouting process, the grouting parameter collection module (17) sends the collected grouting pressure and slurry flow parameters to remote control software through wireless signals, obtains parameter fine adjustment instructions after analysis and processing, and sends the parameter fine adjustment instructions to the control module for fine adjustment;
when the control module is used for carrying out fine adjustment according to the grouting parameters acquired by the grouting feedback module, the relation between the water-material ratio and the pressure loss is established by remote control software, and fine adjustment is realized in a suggested range through the water-material ratio, which specifically comprises the following steps;
if the flowing state of the slurry in the grouting pipe is laminar flow, the on-way pressure loss of the slurry in the pipeline is as follows:
the local pressure loss is:
the total pressure loss in the pipe is then:
wherein, the first and the second end of the pipe are connected with each other,
lambda is the on-way resistance coefficient of the pipeline;
l is the length of the pipeline;
d is the inner diameter of the pipeline;
ζ is the local drag coefficient of the pipeline;
ρ is the fluid density;
v is the average flow velocity of the pipeline;
according to the definition of the water-material ratio, p is expressed as:
wherein the content of the first and second substances,
mwadding water;
mgthe addition amount of the novel anchoring agent is the amount of the novel anchoring agent;
ρwthe density of water is a fixed value;
ρgthe density of the novel anchoring agent is a constant value;
alpha is water-material ratio;
b is defined as:
equation (5) then translates to:
ρ＝B(α+1) (6)
according to the relationship between the flow and the flow velocity, the following steps are obtained:
wherein the content of the first and second substances,
Qiis the initial flow rate;
Qjflow of monitoring points;
a is the area of the inner section of the grouting pipe;
r is the radius of the inner section of the grouting pipe;
the formula (3) in the formulae (6) and (7) can be obtained:
wherein the content of the first and second substances,
g is the acceleration of gravity;
s is the specific resistance of the pipeline;
therefore, the relation between the water-material ratio of the slurry and the pressure loss is as follows:
according to the formula (9), the fine adjustment of the water-material ratio can be realized through the grouting pressure loss;
completing construction in the step (6); after the hole is drilled and the slurry is reversed, the grouting pipe is pulled out of the drilled hole; at the moment, a water pump (5) is started, and the grouting pipeline is cleaned by using large-flow clear water until water flowing out of the grouting pipe orifice is clear; and (5) closing the power supply of the equipment, recovering the grouting pipe, and transporting the grouting equipment to the next place.
7. The construction method of the intelligent grouting equipment suitable for the novel anchoring material as claimed in claim 6, wherein: the method comprises the following steps: in the step (1), the construction preparation work specifically includes:
firstly, before construction, grouting equipment is conveyed to a construction site, the front end of the grouting equipment faces a stockpiling area, and the rear end of the grouting equipment faces a construction area;
adjusting hydraulic supporting legs (21) to enable the equipment to be in a horizontal state;
connecting a grouting pipe (16) and installing a grouting parameter collecting module (17);
filling water into the water tank (4), starting the water pump (5) and washing the whole grouting pipeline;
closing the water pump (5) to complete the pipe washing;
and adding a vector anchoring agent to the material box (1) according to the required quantity of the construction materials.
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| CN116877374A (en) * | 2023-07-04 | 2023-10-13 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Intelligent grouting pump and grouting method thereof |
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