CN114661076A - Device for automatically controlling double-liquid grouting and using method - Google Patents

Device for automatically controlling double-liquid grouting and using method Download PDF

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Publication number
CN114661076A
CN114661076A CN202011533930.5A CN202011533930A CN114661076A CN 114661076 A CN114661076 A CN 114661076A CN 202011533930 A CN202011533930 A CN 202011533930A CN 114661076 A CN114661076 A CN 114661076A
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liquid
grouting
supply pipe
slurry
raw material
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李凯
姬贺飞
刘光磊
武思宇
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Zhongyan Technology Co Ltd
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Zhongyan Technology Co Ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention discloses a device for automatically controlling double-liquid grouting and a using method thereof. The device comprises a supporting arm, a weigher, a liquid A preparation water supply pipe, a liquid A raw material supply pipe, a liquid A slurry conveying pipeline electronic valve, a stirring blade, a liquid A stirring barrel, a liquid A slurry storage barrel, a liquid B preparation water supply pipe, a liquid B raw material supply pipe, a liquid B slurry conveying pipeline electronic valve, a stirring blade, a liquid B stirring barrel, a liquid B slurry storage barrel, a grouting pump, a frequency converter, a pressure control valve, a flowmeter, a grouting pipeline, a one-way slurry stop valve, a signal transmission line and a data control center. The liquid A preparation water supply pipe, the liquid A raw material supply pipe, the liquid A slurry conveying pipeline electronic valve, the stirring blade, the liquid A stirring barrel and the liquid A slurry storage barrel form a liquid A slurry preparation system together; a liquid B preparation water supply pipe, a liquid B raw material supply pipe, a liquid B slurry conveying pipeline electronic valve, a stirring blade, a liquid B stirring barrel and a liquid B slurry storage barrel form a liquid B slurry preparation system together; the data control center changes the output power of the grouting pump by controlling the frequency converter, adjusts the grouting pressure by the pressure control valve, collects the real-time information of each sensor by the signal transmission line and reversely controls the pressure and the flow based on the data; the one-way grout stopping valve limits the grout to flow in one direction and only can flow to one side of the grouting hole.

Description

Device for automatically controlling double-liquid grouting and using method
Technical Field
The invention belongs to the field of stratum reinforcing and seepage-proofing devices and construction, and the device and the using method can be used for quickly and continuously adjusting the properties of two types of grout and the mass proportion relation of the two types of grout in the grouting construction process, so that the effective utilization rate and the grouting effect of the grout are improved.
Background
In the stratum grouting reinforcement seepage-proofing project, A, B double-liquid grouting needs to be adopted in partial working conditions, such as advanced small conduit grouting, full-section face reinforcement grouting, water-moving leakage-stopping grouting and other working conditions of underground tunnel construction. The double-liquid grouting is that two kinds of grout are transmitted along two grouting pipes and then are combined and grouted into a grouting hole at an orifice, so that the setting time and the diffusion distance of the grout are controlled.
At present, a double-liquid grouting pump is generally adopted in double-liquid grouting construction, grouting flow rates of two kinds of grout are nearly consistent, and the mass ratio cannot be adjusted; meanwhile, slurry is manually prepared on site, the precision is low, the construction strength is high, the adjustment of the slurry is too dependent on the experience of operation technicians, and the large-scale popularization cannot be realized.
Disclosure of Invention
The invention aims to design a device which accurately controls the preparation of two kinds of slurry through a weighing device and an electronic valve and adjusts the grouting pressure and flow of the two kinds of slurry through a frequency converter and a pressure control valve; simultaneously, by the device, the property of the slurry and the mass ratio of the two slurries are adjusted in real time based on real-time analysis of grouting data in the grouting process, so that the effective utilization rate and the construction effect of the slurries are improved.
The invention adopts the following technical scheme:
the device comprises a supporting arm, a weighing device, a liquid A preparation water supply pipe, a liquid A raw material supply pipe, a liquid A slurry conveying pipeline electronic valve, a stirring blade, a liquid A stirring barrel, a liquid A slurry storage barrel, a liquid B preparation water supply pipe, a liquid B raw material supply pipe, a liquid B slurry conveying pipeline electronic valve, a stirring blade, a liquid B slurry stirring barrel, a liquid B slurry storage barrel, a grouting pump, a frequency converter, a pressure control valve, a flowmeter, a grouting pipeline, a one-way slurry stop valve, a signal transmission line and a data control center. The liquid A preparation water supply pipe, the liquid A raw material supply pipe, the liquid A slurry conveying pipeline electronic valve, the stirring blade, the liquid A stirring barrel and the liquid A slurry storage barrel form a liquid A slurry preparation system together; the liquid B preparation water supply pipe, the liquid B raw material supply pipe, the liquid B slurry conveying pipeline electronic valve, the stirring blade, the liquid B stirring barrel and the liquid B slurry storage barrel form a liquid B slurry preparation system together; the data control center changes the output power of the grouting pump through a control frequency converter, adjusts the grouting pressure through a pressure control valve, collects the real-time information of each sensor through a signal transmission line and reversely controls the output power, the grouting pressure and the flow of the grouting pump based on data; the one-way grout stopping valve limits the grout to flow in one direction and only can flow to one side of the grouting hole.
Electronic valves are arranged on the liquid A preparation water supply pipe, the liquid A raw material supply pipe, the liquid B preparation water supply pipe and the liquid B raw material supply pipe to control the feeding state, the amount of added water and raw materials is weighed by a weighing device according to the design input value of a data control center, and the liquid A and the liquid B are accurately prepared by controlling the on-off state of the electronic valves; and the step-by-step accurate control of slurry preparation and grouting is realized through the liquid A slurry preparation barrel, the liquid A slurry storage barrel, the liquid B slurry preparation barrel and the liquid B slurry storage barrel.
The output power of the grouting pump is adjusted by installing a frequency converter on the grouting pump, and the grouting pressure is adjusted by a pressure control valve; based on the principle that the effective output power of the grouting pump is equal to the product of the grouting pressure and the grouting flow, the grouting flow can be changed by adjusting the output power and the grouting pressure; the flow direction of the grout is limited A, B to be unidirectional flow by the one-way grout stop valve, and the grout can only flow to one side of the grouting hole.
The method comprises the steps that a signal transmission line can collect a mass value weighed by a weighing scale in real time, an output power value of a grouting pump, a grouting pressure value read by a pressure control valve and a grouting flow value measured by a flowmeter, data are transmitted to a data control center for analysis, and then the data control center reversely controls the opening and closing state of an electronic valve, the opening and closing size of a pressure controller, the frequency of a frequency converter and the output power of the grouting pump; and further, the grouting pressure, the grouting flow and the proportion relation between the grouting flow of the grout A and the grout B meet the design requirements.
Drawings
FIG. 1 is a diagram of an automatic control double-liquid grouting device
The labels in the figure are: the system comprises a support arm 1, a weighing device 2, a liquid preparation water supply pipe 3-A, a liquid raw material supply pipe 4-A, a liquid slurry conveying pipeline 5-A electronic valve, a stirring blade 6, a liquid stirring barrel 7-A, a liquid slurry storage barrel 8-A, a liquid slurry preparation water supply pipe 9-B, a liquid raw material supply pipe 10-B, a liquid slurry conveying pipeline 11-B electronic valve 12, a stirring blade 13-B, a liquid slurry stirring barrel 14-B, a slurry filling pump 15, a frequency converter 16, a pressure control valve 17, a flow meter 18, a grouting pipeline 19, a one-way slurry stop valve 20, a signal transmission line 21, a data control center 22, a ground surface 23 and a grouting hole 24.
Detailed Description
In order to make the technical scheme of the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Examples
As shown in fig. 1, an automatic double-liquid grouting control device comprises a support arm 1, a weighing device 2, a liquid a preparation water supply pipe 3, a liquid a raw material supply pipe 4, a liquid a slurry conveying pipeline electronic valve 5, a stirring blade 6, a liquid a stirring barrel 7, a liquid a slurry storage barrel 8, a liquid B preparation water supply pipe 9, a liquid B raw material supply pipe 10, a liquid B slurry conveying pipeline electronic valve 11, a stirring blade 12, a liquid B stirring barrel 13, a liquid B slurry storage barrel 14, a grouting pump 15, a frequency converter 16, a pressure control valve 17, a flow meter 18, a grouting pipeline 19, a one-way slurry stop valve 20, a signal transmission line 21 and a data control center 22.
The method comprises the following steps of installing an electronic valve on a liquid A preparation water supply pipe, a liquid A raw material supply pipe, a liquid B preparation water supply pipe and a liquid B raw material supply pipe to control a feeding state, weighing the mass of the fed water and raw materials by a weighing device, and accurately preparing slurry A and slurry B by controlling the opening and closing state of the electronic valve according to the design value of a data control center; the precise control of the slurry preparation and the grouting step by step is realized by preparing the slurry preparation barrel for the liquid A and the slurry storage barrel for the liquid A and the slurry preparation barrel for the liquid B and the slurry storage barrel for the liquid B.
The output power of the grouting pump is adjusted by installing a frequency converter on the grouting pump, the grouting pressure is adjusted by a pressure control valve, and the grouting flow can be changed by adjusting the output power and the grouting pressure based on the principle that the effective output power of the grouting pump is equal to the product of the grouting pressure and the grouting flow; the flow direction of the grout is limited A, B to be unidirectional flow by the one-way grout stop valve, and the grout can only flow to one side of the grouting hole.
The quality value weighed by the weighing device, the output power value of the grouting pump, the grouting pressure value read by the pressure control valve and the grouting flow value measured by the flowmeter can be collected in real time through the signal transmission line, and the data control center collects construction data and then analyzes and reversely controls the opening and closing states of the electronic valve, the opening and closing sizes of the pressure controller, the frequency of the frequency converter and the output power of the grouting pump, so that the grouting pressures, the grouting flow and the grouting flow of the grout A and the grout B meet the design requirements.
In this embodiment, the specific operation steps are as follows:
Figure 43572DEST_PATH_IMAGE001
designing and programming grouting construction control criteria and parameters aiming at target working conditions, and embedding a program into a control center; determining design grouting pressure P based on construction control criteria1And designing grouting flow rate Q1A, B Mass ratio and flow ratio of solution A, preparation of solution A with addition of Water1kg. Adding the raw material M of the solution A2kg, mass M of water to be added for preparing solution B3kg. Adding the raw material M of the solution B4kg; meanwhile, the adding sequence of water and raw materials in the preparation process of the A, B liquid is set, and the raw materials are added after water is added.
Figure 155885DEST_PATH_IMAGE002
The electronic valve of the conveying pipeline is controlled by the data control center, the electronic valve on the liquid A preparation water supply pipeline and the electronic valve on the liquid B preparation water supply pipeline are opened at first and water is discharged, and when the electronic scale of the liquid A stirring barrel displays the mass M1After kg, the electronic valve is closed, the electronic valve of the liquid A raw material supply pipeline is opened, and when the mass of the electronic scale of the liquid A stirring barrel displays M1+ M2Closing the electronic valve after kg; when B liquid stirs the sizing barrel electronic scale mass display M3After kg, the electronic valve is closed, the electronic valve of the raw material supply pipeline of the liquid B is opened, and when the electronic scale mass of the liquid B stirring barrel showsShow M3+ M4Closing the electronic valve after kg; in the whole process, the stirring blades in the A, B liquid stirring barrel need to keep rotating to stir the slurry.
Figure 694314DEST_PATH_IMAGE003
Controlling the quality of the slurry put into the liquid A slurry storage barrel and the liquid B slurry storage barrel by controlling the opening and closing states of electronic valves on the slurry stirring barrel and the slurry storage barrel connecting pipeline; and in the grouting process, the flow monitoring value of the liquid A is used as a reference, the grouting flow of the liquid B is adjusted by adjusting a frequency converter and a pressure control valve of a grouting pump on the liquid B pipeline according to a set proportion, and the flow ratio of the A, B liquid is enabled to meet the design requirement.
Figure 688814DEST_PATH_IMAGE004
In the grouting process, the data control center performs real-time control and adjustment on A, B slurry properties, A, B slurry mass ratio and grouting pressure according to the real-time monitoring grouting pressure and flow change rule and based on theoretical analysis and material indoor test results, so that the effective utilization rate of the slurry is improved.

Claims (4)

1. The utility model provides an automatic device of two liquid slip casting of control which characterized in that includes: the device comprises a supporting arm (1), a weighing device (2), a liquid A preparation water supply pipe (3), a liquid A raw material supply pipe (4), a liquid A slurry conveying pipeline electronic valve (5), a stirring blade (6), a liquid A stirring barrel (7), a liquid A slurry storage barrel (8), a liquid B preparation water supply pipe (9), a liquid B raw material supply pipe (10), a liquid B slurry conveying pipeline electronic valve (11), a stirring blade (12), a liquid B stirring barrel (13), a liquid B slurry storage barrel (14), a grouting pump (15), a frequency converter (16), a pressure control valve (17), a flow meter (18), a grouting pipeline (19), a one-way slurry stop valve (20), a signal transmission line (21) and a data control center (22); a liquid A preparation water supply pipe (3), a liquid A raw material supply pipe (4), a liquid A slurry conveying pipeline electronic valve (5), a stirring blade (6), a liquid A stirring barrel (7) and a liquid A slurry storage barrel (8) form a liquid A pulping system; a liquid B preparation water supply pipe (9), a liquid B raw material supply pipe (10), a liquid B slurry conveying pipeline electronic valve (11), a stirring blade (12), a liquid B stirring barrel (13) and a liquid B slurry storage barrel (14) form a liquid B pulping system; a frequency converter (16), a pressure control valve (17) and a data control center (22) form a pressure and flow control system in the double-liquid grouting process; the signal transmission line (21) and the data control center (22) form an information collection and display system.
2. The apparatus for automatically controlling double-fluid grouting according to claim 1, wherein the control center (1) can realize automatic control of the construction process by embedding a process control program therein; the weighing device (2), the liquid A slurry stirring barrel (7), the liquid A slurry storage barrel (8), the liquid B slurry stirring barrel (13) and the liquid B slurry storage barrel (14) are all fixed on the supporting arm (1); a liquid A preparation water supply pipe (3), a liquid A raw material supply pipe (4) and a liquid B slurry conveying pipeline electronic valve (11) are arranged on the liquid A preparation water supply pipe (9) and the liquid B raw material supply pipe (10); the grouting pipeline (19) is provided with a pressure control valve (17), a flowmeter (18) and a one-way grout stopping valve (20), the grouting pump (15) is provided with a frequency converter (16), and the pressure control valve (17) can regulate and control pressure and can also read the pressure value in real time.
3. A device for automatically controlling double-liquid grouting and a using method thereof are characterized by comprising the following steps:
Figure 115165DEST_PATH_IMAGE001
designing and programming grouting construction control criteria and parameters aiming at target working conditions, and embedding a program into a control center (1);
Figure 672048DEST_PATH_IMAGE002
based on the construction control criterion, the control center (1) controls the weighing device (2), the liquid A preparation water supply pipe (3) and the liquid A raw material supply pipe (4) to be added into the reclaimed water in the liquid A stirring barrel (7)The quality of the liquid A and the quality of the liquid A raw material, and stirring the mixture in a liquid A stirring barrel (7) to form liquid A; the quality of water added into a B liquid stirring barrel (13) and the quality of a B liquid raw material are controlled by controlling a weighing device (2), a B liquid preparation water supply pipe (9) and a B liquid raw material supply pipe (10), and the B liquid raw material is stirred in the B liquid stirring barrel (13) to form B liquid;
Figure 345606DEST_PATH_IMAGE003
according to the design proportion of the liquid A and the liquid B, A, B liquids with corresponding mass are respectively put into a liquid A pulp storage barrel (8) and a liquid B pulp storage barrel (14) according to the proportion mass; in the grouting process, the output power and grouting pressure of a grouting pump are adjusted in real time through a frequency converter (16) and a pressure control valve (17) on the grouting pump (15), and then the grouting pressure and grouting flow of two kinds of liquid are changed to meet the design requirements;
Figure 341244DEST_PATH_IMAGE004
during grouting, grouting pressure and grouting flow data during grouting are analyzed through a data control center (22), and the grouting flow ratio of the liquid A and the liquid B and the proportion of water in the liquid A and the liquid B to raw materials are adjusted in real time based on data analysis results and process design criteria.
4. An apparatus for automatically controlling dual fluid grouting as claimed in claim 3, and method of use, wherein said steps are performed in a single step
Figure 744544DEST_PATH_IMAGE004
The method is characterized in that the basis and principle of adjustment are derived and formed according to indoor material test results and theories.
CN202011533930.5A 2020-12-23 2020-12-23 Device for automatically controlling double-liquid grouting and using method Pending CN114661076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011533930.5A CN114661076A (en) 2020-12-23 2020-12-23 Device for automatically controlling double-liquid grouting and using method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011533930.5A CN114661076A (en) 2020-12-23 2020-12-23 Device for automatically controlling double-liquid grouting and using method

Publications (1)

Publication Number Publication Date
CN114661076A true CN114661076A (en) 2022-06-24

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Application Number Title Priority Date Filing Date
CN202011533930.5A Pending CN114661076A (en) 2020-12-23 2020-12-23 Device for automatically controlling double-liquid grouting and using method

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Country Link
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