Method for controlling spraying flow of watering cart by taking optimal moisture content of soil and stone as target

Abstract

The invention discloses a watering cart spraying flow control method with the optimal moisture content of earth and stone as the target. The method comprises the steps that initial parameters of filling earth and stone are determined; the water spraying device is connected with water spraying vehicle equipment, the water spraying vehicle equipment comprises a water spraying vehicle and a strip-type spray head which is communicated with a water outlet of the water spraying vehicle and used for continuous strip-type water spraying, and an electromagnetic flow valve is arranged on a pipeline between the water outlet of the water spraying vehicle and the strip-type spray head. And constructing a water sprinkling quantity-vehicle speed-water content coupling model, and optimizing the sprinkling flow according to the initial parameters, the paving indexes, the driving speed of the sprinkling vehicle and the effective sprinkling width. According to the invention, by establishing the quantitative coupling relation model among the sprinkling amount, the vehicle speed and the water content and comprehensively considering the initial water content, the optimal water content, the paving thickness, the sprinkling parameters and other factors of the soil and stone materials, automatic calculation and optimization of the sprinkling flow of the sprinkling vehicle are realized, the randomness of judgment depending on manual experience in the past is avoided, and the accuracy and the reliability of the sprinkling flow are improved. And the watering operation is converted from experience driving to data driving.

Description

Technical Field

[0001] This invention belongs to the technical field of moisture content control in earth-rock dam construction, specifically relating to a method for controlling the spraying flow rate of a water truck with the optimal moisture content of the soil and rock as the target. Background Technology

[0002] During the construction of earth-rock dams, the compaction quality of the fill material directly affects the overall stability and safety of the dam body, and the moisture content of the fill material is a key parameter affecting the compaction quality. Studies have shown that compaction at near-optimal moisture content can effectively improve the compaction quality of the soil and rock materials, reduce the permeability coefficient, and enhance shear strength; conversely, a moisture content deviating from the optimal range can easily lead to uneven compaction, localized weak interlayers, and seepage risks, affecting the long-term stability of the dam body.

[0003] Currently, construction sites primarily rely on water trucks to humidify the fill surface. However, the amount and uniformity of water sprayed are largely controlled by drivers based on experience, lacking scientific basis. Due to differences in operating habits, vehicle speed, and driving routes, the moisture content in the same area often fluctuates significantly. Existing methods mostly employ "quantitative water addition" or "timed watering" modes, failing to comprehensively consider the coupling effect between the initial moisture content of the soil, spraying intensity, and vehicle speed. This leads to uncertain humidification effects, and construction quality control depends on manual experience, resulting in a low level of precision. Therefore, there is an urgent need to propose a water truck spraying flow control method targeting the optimal moisture content of the soil and rock materials. By establishing a coupled model of water volume, vehicle speed, and moisture content, the water truck spraying flow can be dynamically adjusted to achieve precise control of the moisture content of the fill material, thereby improving the level of construction automation and the consistency of dam compaction quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for controlling the spraying flow of a sprinkler truck with the optimal moisture content of soil and rock as the target, in order to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a method for controlling the spraying flow of a sprinkler truck with the optimal moisture content of soil and rock as the target, characterized in that the method includes the following steps: Step 1: Determine the initial parameters of the filling soil and rock materials, including the initial moisture content, the optimum moisture content, and the paving thickness of the soil and rock materials; Step 2, connect the water truck equipment, which includes a water truck and a strip nozzle connected to the water outlet of the water truck for continuous strip spraying. An electromagnetic flow valve is installed on the pipeline between the water outlet of the water truck and the strip nozzle. Step 3: Construct a coupled model of water volume, vehicle speed, and moisture content, and optimize the spray flow rate based on initial parameters, paving indicators, water truck speed, and effective spray width.

[0006] The above-mentioned method for controlling the spraying flow rate of a water truck with the optimum moisture content of soil and rock as the target is characterized in that: determining the initial parameters of the filling soil and rock includes: Step 1.1: The initial moisture content of the soil and rock materials was determined by sampling and testing at the material yard. ; Step 1.2: Determine the optimum moisture content of the soil and rock through indoor soil compaction tests. ; Step 1.3: Before spreading the soil and rock materials, measure the spreading indicators, including the total volume of the spread soil and rock materials. paving area Total mass of paved earth and stone According to the formula Determine the thickness of the paving material. .

[0007] The above-mentioned method for controlling the spray flow rate of a water truck with the optimal moisture content of soil and rock as the objective is characterized by: constructing a coupled model of water volume, vehicle speed, and moisture content, and optimizing the spray flow rate based on initial parameters, paving indicators, water truck speed, and effective spray width, including: Step 3.1, based on the initial moisture content of the soil and rock materials Optimal moisture content of soil and rock The difference is expressed by the formula. Calculate the amount of water required to bring the paved soil and rock to their optimum moisture content. The unit is ;in, The total mass of the paved soil and stone is expressed in kg. Step 3.2, combined with the effective spray width of the nozzle Sprinkler truck speed The amount of water required to bring the paved soil and rock to their optimum moisture content. And paving indicators, establish a coupled model of water spraying volume, vehicle speed, and moisture content. ,in, The spray flow rate is expressed in units of... ; The speed of the water truck is expressed in km / h. The effective spray width of the nozzle, in meters; Step 3.3, based on the effective sprinkling width The amount of water required to bring the paved soil and rock to their optimum moisture content. paving indicators and water truck speed By combining the coupling model of water volume, vehicle speed, and moisture content, an electromagnetic flow valve is used to regulate the optimal spraying flow of the sprinkler truck in real time. . The beneficial effects of this invention are that by installing an electromagnetic flow valve at the water outlet of the sprinkler truck and cooperating with a strip nozzle, the spray flow rate can be controlled in real time. By establishing a quantitative coupling relationship model between "spray volume—vehicle speed—moisture content," and comprehensively considering factors such as the initial moisture content of the soil and rock, the optimum moisture content, the paving thickness, and spraying parameters, the automatic calculation and optimization of the sprinkler truck's spray flow rate is achieved, enabling intelligent control of the sprinkler truck's spray flow rate. This improves the uniformity of water spraying and the consistency of compaction quality. This method avoids the arbitrariness of previous methods relying on manual experience, transforming sprinkler operations from "experience-driven" to "data-driven," significantly improving the accuracy and automation level of earth-rock dam compaction construction, which is of great significance for ensuring the quality of dam engineering and extending its service life.

[0008] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0009] Figure 1 This is a flowchart of the method of the present invention.

[0010] Figure 2 This is a graph showing the relationship between the water content and maximum dry density of the earth-rock dam in an embodiment of the present invention.

[0011] Figure 3 This is a schematic diagram of the water sprinkler truck equipment in an embodiment of the present invention. Detailed Implementation

[0012] like Figures 1 to 3 As shown, the water truck spraying flow control method of the present invention, which targets the optimum moisture content of soil and rock, includes the following steps: Step 1: Determine the initial parameters of the filling soil and rock materials, including the initial moisture content, the optimum moisture content, and the paving thickness of the soil and rock materials; The determination of the initial parameters for the filling soil and rock materials includes: Step 1.1: The initial moisture content of the soil and rock materials was determined by sampling and testing at the material yard. =1.17%; Step 1.2: Through indoor geotechnical compaction tests, the maximum dry density of soil and rock materials at different moisture contents can be obtained, such as... Figure 2 As shown, the optimum moisture content of the soil and rock material can be determined. =4.0%; Step 1.3: Before spreading the soil and rock materials, measure the spreading indicators, including the total volume of the spread soil and rock materials. paving area Total mass of paved earth and stone According to the formula Determine the thickness of the paving material. .

[0013] Step 2, connect the water truck equipment, which includes a water truck and strip nozzles connected to the water outlet of the water truck for continuous strip spraying. An electromagnetic flow valve is installed on the pipeline between the water outlet of the water truck and the strip nozzles. Figure 3 As shown; Step 3: Construct a coupled model of water volume, vehicle speed, and moisture content, and optimize the spray flow rate based on initial parameters, paving indicators, water truck speed, and effective spray width.

[0014] The construction of the coupled model of water spraying volume, vehicle speed, and moisture content optimizes the spraying flow rate based on initial parameters, paving indicators, sprinkler truck speed, and effective spraying width, including: Step 3.1, based on the initial moisture content of the soil and rock materials Optimal moisture content of soil and rock The difference is expressed by the formula. Calculate the amount of water required to bring the paved soil and rock to their optimum moisture content. The unit is ;in, The total mass of the paved soil and stone is expressed in kg. Step 3.2, combined with the effective spray width of the nozzle Sprinkler truck speed The amount of water required to bring the paved soil and rock to their optimum moisture content. And paving indicators, establish a coupled model of water spraying volume, vehicle speed, and moisture content. ,in, The spray flow rate is expressed in units of... ; The speed of the water truck is expressed in km / h. The effective spray width of the nozzle, in meters; Step 3.3, Effective spray width of the strip sprinkler head Total volume of paved earth and stone Thickness of soil and stone paving The amount of water required to bring the paved soil and rock to their optimum moisture content. Fixed speed of sprinkler truck By combining the coupling model of water volume, vehicle speed, and moisture content, an electromagnetic flow valve is used to regulate the optimal spraying flow of the sprinkler truck in real time. .

[0015] In use, this invention involves installing an electromagnetic flow valve at the water outlet of a water truck, in conjunction with a strip-type nozzle, to control the spray flow rate in real time. By establishing a quantitative coupling relationship model between "spray volume, vehicle speed, and moisture content," and comprehensively considering factors such as the initial moisture content, optimum moisture content, paving thickness, and spraying parameters, the invention achieves automatic calculation and optimization of the water truck's spray flow rate, enabling intelligent control of the spray flow rate to improve the uniformity of watering and the consistency of compaction quality. This method avoids the arbitrariness of relying on manual experience, transforming watering operations from "experience-driven" to "data-driven," significantly improving the accuracy and automation level of earth-rock dam compaction construction, and is of great significance for ensuring the quality of dam projects and extending their service life. The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for controlling the spray flow rate of a sprinkler truck based on the optimum moisture content of soil and rock, characterized in that, The method includes the following steps: Step 1: Determine the initial parameters of the filling soil and rock materials, including the initial moisture content, the optimum moisture content, and the paving thickness of the soil and rock materials; Step 2, connect the water truck equipment, which includes a water truck and a strip nozzle connected to the water outlet of the water truck for continuous strip spraying. An electromagnetic flow valve is installed on the pipeline between the water outlet of the water truck and the strip nozzle. Step 3: Construct a coupled model of water volume, vehicle speed, and moisture content, and optimize the spray flow rate based on initial parameters, paving indicators, water truck speed, and effective spray width.

2. The method for controlling the spraying flow rate of a sprinkler truck based on the optimum moisture content of soil and rock as described in claim 1, characterized in that: The determination of the initial parameters for the filling soil and rock materials includes: Step 1.1: The initial moisture content of the soil and rock materials was determined by sampling and testing at the material yard. ; Step 1.2: Determine the optimum moisture content of the soil and rock through indoor soil compaction tests. ; Step 1.3: Before spreading the soil and rock materials, measure the spreading indicators, including the total volume of the spread soil and rock materials. paving area Total mass of paved earth and stone According to the formula Determine the thickness of the paving material. .

3. The method for controlling the spraying flow rate of a sprinkler truck based on the optimum moisture content of soil and rock as described in claim 2, characterized in that: The construction of the coupled model of water spraying volume, vehicle speed, and moisture content optimizes the spraying flow rate based on initial parameters, paving indicators, sprinkler truck speed, and effective spraying width, including: Step 3.1, based on the initial moisture content of the soil and rock materials Optimal moisture content of soil and rock The difference is expressed by the formula. Calculate the amount of water required to bring the paved soil and rock to their optimum moisture content. The unit is ;in, The total mass of the paved soil and stone is expressed in kg. Step 3.2, combined with the effective spray width of the nozzle Sprinkler truck speed The amount of water required to bring the paved soil and rock to their optimum moisture content. And paving indicators, establish a coupled model of water spraying volume, vehicle speed, and moisture content. ,in, The spray flow rate is expressed in units of... ; The speed of the water truck is expressed in km / h. The effective spray width of the nozzle, in meters; Step 3.3, based on the effective sprinkling width The amount of water required to bring the paved soil and rock to their optimum moisture content. paving indicators and water truck speed By combining the coupling model of water volume, vehicle speed, and moisture content, an electromagnetic flow valve is used to regulate the optimal spraying flow of the sprinkler truck in real time. .

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