Intelligent uniform soil distribution test device and method thereof

Abstract

The application discloses a kind of intelligent uniform soil test device and use method, device includes soil mixing box, bulldozer equipment, moisture content soil mixing equipment, water pump, modifier soil mixing equipment, modifier delivery pump, vibrating base and intelligent control system, bulldozer equipment, moisture content soil mixing equipment and modifier soil mixing equipment are located inside soil mixing box;Soil mixing box is fixed on vibrating base;Soil mixing box is divided into moisture content soil mixing area, modifier soil mixing area and connecting area in, moisture content soil mixing area upper portion is equipped with soil inlet, modifier soil mixing area front side is equipped with soil outlet, lower rear side is equipped with bulldozer equipment, connecting area is respectively provided with water pump pipe and modifier pump pipe, water pump pipe and moisture content soil mixing equipment are communicated in connecting area;Modifier pump pipe and modifier soil mixing equipment are communicated in connecting area.It can greatly improve single soil mixing quality, save manpower, material resources and financial resources, guarantee soil mixing uniformity, improve test accuracy, improve laboratory environment, and ensure the health of test personnel.

Description

A smart uniform soil mixing test device and method Technical Field

[0001] This invention relates to the field of testing technology in civil engineering and hydraulic engineering, and to a device for preparing target test soil in the laboratory of civil engineering and hydraulic engineering, particularly an intelligent uniform soil mixing test device and its usage method. Background Technology

[0002] In the fields of civil engineering and water conservancy engineering, the strength, deformation and hydrophysical properties of soil and rock have always been core issues in scientific research and engineering construction.

[0003] However, to study the properties of soil and rock, it is necessary to select suitable soil samples as the research object. Due to limitations in site equipment and test conditions, in-situ tests and field tests are often difficult to carry out and require a lot of manpower, financial resources and time. Therefore, research on soil properties and soil modification often needs to be carried out in the laboratory.

[0004] Conventional indoor soil samples are obtained primarily through two methods: in-situ sampling and laboratory soil preparation. In-situ sampling preserves the natural state of the soil better, allowing for more accurate study and reflection of the target soil's properties; however, the costs of excavation, preservation, and transportation of soil samples are high. Laboratory soil preparation, based on the fundamental physical properties of natural soil, involves drying and pulverizing general soil in the laboratory, then controlling parameters such as moisture content and particle size distribution to prepare the target soil or adding modifiers for modification. Further research into the physicochemical properties of the target soil is then conducted. However, this method often suffers from cumbersome preparation processes, small sample volumes, and uneven sample distribution.

[0005] In soil modification research, whether using in-situ soil samples or prepared soil samples, the accuracy of the research results can only be ensured by ensuring the uniformity of the modifier added to the soil. However, manual mixing methods often make it difficult to ensure the uniformity of the modifier and require a lot of manpower and time.

[0006] Therefore, the urgent need to develop an economical and convenient soil mixing test device with a large mixing volume and the ability to ensure the uniformity of the target soil sample, as well as its usage method, is one of the topics of concern to the applicant. Summary of the Invention

[0007] In order to address the defects or deficiencies in the existing soil mixing test technology, the present invention aims to provide an intelligent uniform soil mixing device and its usage method.

[0008] To achieve the above objectives, the present invention employs the following technical solution:

[0009] A smart uniform soil mixing test device includes a soil mixing box, characterized in that: inside the soil mixing box, a bulldozing device, a moisture content soil mixing device, and a modifier soil mixing device are installed; outside the soil mixing box, a water pump, a modifier delivery pump, and an intelligent control system are installed; and a vibration base is installed at the bottom of the soil mixing box; wherein:

[0010] The soil mixing box is made of plexiglass, allowing observation of the internal soil conditions. The box is divided into a moisture content mixing zone, a modifier mixing zone, and a connecting zone. The moisture content mixing zone has an inlet at the top, the modifier mixing zone has an outlet at the front, and a bulldozer is located at the lower rear of the modifier mixing zone. The connecting zone is equipped with a water pump pipe and a modifier pump pipe.

[0011] The water pump delivery pipe is connected to the moisture content soil mixing equipment in the connection area of ​​the soil mixing box, and is also connected to an external water pump. The water pump delivery pipe is equipped with a first valve controlled by an intelligent control system at the interface between the water pump delivery pipe and the water pump.

[0012] The modifier pumping pipe is connected to the modifier soil mixing equipment in the connection area of ​​the soil mixing box, and is also connected to the modifier delivery pump. A second valve controlled by an intelligent control system is provided at the interface between the modifier pumping pipe and the modifier delivery pump.

[0013] The modified agent mixing equipment is shaped like a rounded rectangular tube. A mixing arm is provided at the rounded corners of the rounded rectangular tube, and evenly distributed openings are provided on the flat tube wall. A weighing tube is provided at the center of the rounded rectangular tube, which is connected to the modified agent pumping pipe. The weighing tube wall is provided with a uniform discharge port controlled by an intelligent control system. The mixing arm is provided with a folding shaft for unfolding when the mixing arm is working.

[0014] The vibrating base includes a fixed panel and a vibrating motor; the fixed panel has a groove for fixing the soil mixing box onto the vibrating base; the vibrating motor is connected to the fixed panel via a spring.

[0015] The intelligent control system is used to achieve the following functions:

[0016] Real-time display of soil quality, moisture content, and modifier addition ratio in the soil mixing box;

[0017] Control the opening and closing of the soil inlet and outlet when the soil mixing box is working;

[0018] Adjusting the height of the top panel of the bulldozer, the power of the water atomizing rod of the soil mixing equipment with moisture content, and the wing switch in the gravity sensor;

[0019] Control the opening and closing of the uniform discharge port and the unfolding and folding of the mixing wings;

[0020] Adjust the vibration frequency and duration of the vibrating base.

[0021] According to the present invention, the bulldozing panel of the bulldozing equipment is divided into an upper panel and a lower panel, and there is a rotatable adjustable angle between the upper panel and the lower panel; the upper panel is provided with a telescopic wing plate for adjusting the bulldozing height.

[0022] Specifically, the moisture content soil mixing equipment includes a high-power water atomizing rod, a rotating brush, a dust filter, and a gravity sensor; wherein:

[0023] The water atomizing rod has a central hole that connects to the water pump delivery pipe;

[0024] The rotating brush surrounds the outside of the high-power water atomizing rod;

[0025] The dust filter surrounds the outside of the rotating brush to prevent soil particles from entering;

[0026] The atomized water generated by the high-power water atomizing rod can freely pass through the rotating brush and dust filter. During operation, the rotating brush rotates to clean the soil particles attached to the surface of the dust filter.

[0027] Furthermore, the gravity sensor is shaped like a frustum, with a vertical plate on its upper side connected to a dust filter, and wings on both sides that can be opened downwards; both the gravity sensor and the wings are tilted downwards to facilitate the sliding of soil.

[0028] The method of using the above-mentioned intelligent uniform soil mixing test device is characterized by including the following steps:

[0029] 1) Start the intelligent uniform soil mixing test device and set the target moisture content, modifier addition ratio, soil mixing time and mixing times in the intelligent control system;

[0030] 2) Open the soil inlet, add finely ground soil into the moisture content mixing zone, and then close the soil inlet;

[0031] 3) The soil mixing equipment starts working, and the high-power water atomizing rod begins to release atomized water; at the same time, the vibrating base starts working, and the soil in the mixing box begins to vibrate. The soil vibration and atomized water can prevent the soil from agglomerating and ensure that the soil moisture content is uniform.

[0032] 4) The intelligent control system calculates the soil mass increment and determines the soil moisture content through the gravity sensor of the moisture content soil mixing equipment. When the moisture content reaches the set target value, the wing plate in the gravity sensor opens, the soil falls into the modifier soil mixing area, and the moisture content soil mixing equipment stops working.

[0033] 5) The modifier mixing equipment starts to rotate and work, the mixing wings unfold, and the intelligent control system calculates the required modifier mass based on the initial added soil mass and the set mixing time, and evenly divides it into several portions; when the weighing pipe reaches the divided mass, the uniform discharge port opens, the modifier enters the rounded rectangular pipe, and falls freely into the soil from the opening as the modifier mixing equipment rotates; the mixing wings ensure that the soil and modifier are fully mixed, and the vibration ensures that the modified soil is evenly distributed in the modifier mixing area;

[0034] 6) When the set soil mixing time is reached, the modifier soil mixing equipment stops working, the mixing wings are folded, the vibrating base stops working, and the soil mixing is completed;

[0035] 7) Set the appropriate panel angle and height of the bulldozer through the intelligent control system, open the soil outlet, start the bulldozer, and push the prepared soil into the soil sample container.

[0036] The intelligent uniform soil mixing test device of the present invention has the following beneficial technical effects compared with the prior art:

[0037] 1. By designing a soil mixing box, bulldozing equipment, moisture content soil mixing equipment, water pump, modifier soil mixing equipment, modifier delivery pump, vibrating base, and intelligent control system, this device improves upon the current manual soil mixing methods used in indoor experiments. This increases the quality of the mixed soil, saves mixing time, and further enhances work and testing efficiency. Furthermore, this intelligent soil mixing test device uses the atomizing rod and vibrating base of the moisture content soil mixing equipment to prepare the moisture content, ensuring sufficient and uniform contact between water and soil, preventing soil particles from agglomerating and maintaining a uniform moisture content. The modifier soil mixing equipment enables batch addition and automatic mixing of the modifier, and the synergistic action of the mixing wings and vibrating base ensures more uniform mixing of the soil sample and modifier, guaranteeing the final soil mixing effect.

[0038] 2. During the soil preparation process, the soil preparation box is kept in a closed state, which effectively prevents soil particles from flying out and dust from being generated, thus improving the laboratory environment and ensuring the health of the test personnel.

[0039] 3. The entire process of preparing soil samples by placing them in the soil mixing box can be remotely controlled by an intelligent system, which greatly saves manual time.

[0040] 4. The soil mixing box, moisture content soil mixing equipment and moisture content soil mixing equipment can be reasonably combined according to actual test requirements. The volume of the entire intelligent uniform soil mixing test device can be designed according to actual needs to maximize space utilization.

[0041] 5. The soil inlet can be connected to other soil crushing equipment to further enhance the applicability and scalability of the entire intelligent uniform soil mixing test device. Attached Figure Description

[0042] Figure 1 is a schematic diagram of the overall structure of the intelligent uniform soil mixing test device of the present invention;

[0043] Figure 2 is a schematic diagram of the soil preparation box structure;

[0044] Figure 3 is a schematic diagram of the bulldozing equipment structure.

[0045] Figure 4 is a schematic diagram of the soil mixing equipment with moisture content;

[0046] Figure 5 is a schematic diagram of the modified soil mixing equipment.

[0047] The markings in the diagram represent: 1. Soil mixing box; 1-1. Moisture content soil mixing zone; 1-2. Modifier soil mixing zone; 1-3. Connecting zone; 1-4. Soil inlet; 1-5. Soil outlet; 1-6. Water pump pipe; 1-7. Modifier pump pipe; 2. Bulldozing equipment; 2-1. Top panel; 2-2. Boiler panel; 2-3. Telescopic wing plate; 3. Moisture content soil mixing equipment; 3-1. High-power water atomizing rod; 3-2. Rotating brush; 3-3. Anti-… 3-4. Dust filter; 3-5. Gravity sensor; 3-6. Vertical plate; 3-7. Wing plate; 4. Water pump; 5. Modifier mixing equipment; 5-1. Mixing wing arm; 5-2. Uniformly distributed opening; 5-3. Weighing pipe; 5-4. Uniform discharge port; 6. Modifier delivery pump; 7. Vibration base; 7-1. Fixed panel; 7-2. Vibration motor; 7-3. Spring; 8. Intelligent control system; 8-1. First valve; 8-2. Second valve.

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Detailed Implementation

[0049] It should be noted that in the following description, the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", and "outer" indicate directions and positional relationships only based on the accompanying drawings to more clearly illustrate the technical solution of the present invention, and are not intended to limit the technical solution.

[0050] Referring to Figures 1 to 5, this embodiment provides an intelligent uniform soil mixing test device, including a soil mixing box 1. Inside the soil mixing box 1, a bulldozing device 2, a moisture content soil mixing device 3, and a modifier soil mixing device 5 are installed. Outside the soil mixing box 1, a water pump 4, a modifier delivery pump 6, and an intelligent control system 8 are installed. A vibration base 7 is installed at the bottom of the soil mixing box 1.

[0051] The soil mixing box 1 is made of plexiglass, allowing observation of the internal soil conditions. The box is divided into a moisture content mixing zone 1-1, a modifier mixing zone 1-2, and a connecting zone 1-3. The moisture content mixing zone 1-1 has an inlet 1-4 at its upper part. The modifier mixing zone 1-2 has an outlet 1-5 at its front side. A bulldozer 2 is installed at the lower rear side of the modifier mixing zone 1-2. The connecting zone 1-3 is equipped with a water pump pipe 1-6 for a water pump 4 and a modifier pump pipe 1-7 for a modifier delivery pump 6.

[0052] The water pump delivery pipe 1-6 is connected to the moisture content soil mixing equipment 3 in the connection area 1-3 of the soil mixing box 1, and is also connected to the external water pump 4. The interface between the water pump delivery pipe 1-6 and the water pump 4 is equipped with a first valve 8-1 controlled by the intelligent control system 8.

[0053] Modifier pumping pipe 1-7 is connected to modifier soil mixing equipment 5 in connection area 1-3 of soil mixing box 1, and is connected to modifier delivery pump 6. A second valve 8-2 controlled by intelligent control system 8 is provided at the interface between modifier pumping pipe 1-7 and modifier delivery pump 6.

[0054] The modifier mixing equipment 5 is shaped like a rounded rectangular tube. A mixing arm 5-1 is provided at the rounded corners of the rounded rectangular tube, and openings 5-2 are evenly distributed along the flat wall of the tube. A weighing tube 5-3 is provided at the center of the rounded rectangular tube. The weighing tube 5-3 is connected to the modifier pumping pipe 1-7. The wall of the weighing tube 5-3 is provided with a uniform discharge port 5-4 controlled by the intelligent control system 8. The mixing arm 5-1 is provided with a folding shaft for unfolding when the mixing arm 5-1 is working.

[0055] The vibration base 7 includes a fixed panel 7-1 and a vibration motor 7-2; the fixed panel 7-1 has a groove for fixing the soil mixing box 1 onto the vibration base 7; the vibration motor 7-2 is connected to the fixed panel 7-1 by a spring 7-3.

[0056] The intelligent control system 8 is used to achieve the following functions:

[0057] Real-time display of soil quality, moisture content, and modifier addition ratio in soil mixing box 1;

[0058] When the soil mixing box 1 is working, the soil inlet 1-4 opens and closes, and the soil outlet 1-5 opens and closes.

[0059] Adjust the height of the upper panel 2-1 of the bulldozer 2, the power of the water atomizing rod 3-1 of the soil mixing equipment 3, and the switch of the wing plate 3-6 in the gravity sensor 3-4;

[0060] Control the opening and closing of the uniform discharge port 5-4 and the unfolding and folding of the mixing wing arm 5-1;

[0061] Adjust the vibration frequency and time of the vibration base 7.

[0062] In this embodiment, the bulldozing panel of the bulldozing device 2 is divided into an upper panel 2-1 and a lower panel 2-2, and there is a rotatable adjustable angle between the upper panel 2-1 and the lower panel 2-2; the upper panel 2-1 is provided with a telescopic wing plate 2-3 for adjusting the bulldozing height.

[0063] The soil mixing equipment 3 for moisture content control includes a high-power water atomizing rod 3-1, a rotating brush 3-2, a dust filter 3-3, and a gravity sensor 3-4; wherein:

[0064] The water atomizing rod 3-1 has a central hole and is connected to the water pump delivery pipe 1-6;

[0065] The rotating brush 3-2 surrounds the outside of the high-power water atomizing rod 3-1;

[0066] The dust filter 3-3 surrounds the outside of the rotating brush 3-2 to prevent soil particles from entering;

[0067] The atomized water generated by the high-power water atomizing rod 3-1 can freely pass through the rotating brush 3-2 and the dust filter 3-3. During operation, the rotating brush 3-2 rotates to clean the soil particles attached to the surface of the dust filter 3-3.

[0068] The gravity sensor 3-4 is shaped like a frustum. A vertical plate 3-5 is set on the upper side of the frustum to connect to the dust filter 3-3. Wing plates 3-6 are provided on both sides, and the wing plates 3-6 can be opened downwards. Both the gravity sensor 3-4 and the wing plates 3-6 are set with a downward tilt angle to facilitate the sliding of soil.

[0069] The method of using the above-mentioned intelligent uniform soil mixing test device includes:

[0070] 1) Start the intelligent uniform soil mixing test device and set the target moisture content, modifier addition ratio, soil mixing time and mixing times in the intelligent control system 8;

[0071] 2) Open inlet 1-4, add finely ground soil into soil mixing box 1 with the appropriate moisture content 1-1, and close inlet 1-4;

[0072] 3) The soil mixing equipment 3 starts working, the high-power water atomizing rod 3-1 starts releasing atomized water, the vibration base 7 starts working, and the soil in the soil mixing box 1 starts vibrating. The soil vibration and atomized water can prevent the soil from agglomerating and ensure that the soil moisture content is uniform.

[0073] 4) The intelligent control system 8 calculates the soil mass increment and determines the soil moisture content through the gravity sensor 3-4 of the soil moisture content mixing equipment 3. When the moisture content reaches the set target value, the wing plate 3-6 of the gravity sensor 3-4 opens, the soil falls into the modifier mixing zone 1-1, and the soil moisture content mixing equipment 3 stops working.

[0074] 5) The modifier mixing equipment 3 starts to rotate and work, the mixing arm 5-1 unfolds, and the intelligent control system 8 calculates the required modifier mass based on the initial added soil mass and the set mixing time and divides it evenly several times; when the weighing pipe 5-3 reaches the divided mass, the uniform discharge port 5-4 opens, and the modifier enters the rounded rectangular pipe and falls freely into the soil from the opening as the modifier mixing equipment 5 rotates; the mixing arm 5-1 can achieve full mixing of soil and modifier, and the vibration of the vibrating base 7 can ensure that the modified soil is evenly distributed in the modifier mixing area 1-1;

[0075] 6) When the set soil mixing time is reached, the modifier soil mixing equipment 5 stops working, the mixing wing arm 5-1 is folded, the vibration base 7 stops working, and the soil mixing is completed; the appropriate angle of the upper panel 2-1 and lower panel 2-2 and the height of the upper panel 2-1 are set by the intelligent control system 8, the soil outlet 1-5 is opened, the bulldozer 2 works, and pushes the mixed soil into the soil sample collection container.

[0076] The following are specific examples of the inventors using the intelligent uniform soil mixing test device provided in this embodiment to prepare different soil samples.

[0077] Example 1:

[0078] To prepare target soil with a moisture content of 12% using 100 kg of dry soil, the following steps are included:

[0079] 1) Start the intelligent uniform soil mixing test device, and set the soil mass to "100kg", the moisture content to "12%", the soil mixing time to "2 hours", the modifier addition ratio to "0%", and the mixing times to "0" in the intelligent control system 8.

[0080] 2) Open the soil inlet 1-4, pour 100kg of crushed dry soil into the soil mixing box 1 through the soil inlet 1-4, close the soil inlet 1-4, select to start soil mixing through the intelligent control system 8, and manually turn on the water pump 4.

[0081] 3) The moisture content soil mixing equipment 3 is started, the first valve 8-1 of the water pump delivery pipe 1-6 is opened, and water is pumped by the water pump 4 through the water pump delivery pipe 1-6 into the high-power water atomizing rod 3-1. A large amount of atomized water is generated in the moisture content soil mixing zone 1-1 in the soil mixing box 1, the rotating brush 3-2 starts to rotate, and the soil particles on the surface of the dust filter screen 3-3 fall off.

[0082] 4) When the vibrating base 7 is started, the soil vibrates with the soil mixing box 1, and the soil particles fully and evenly absorb the atomized water, and the soil mass continuously increases.

[0083] 5) Gravity sensor 3-4 is activated, and intelligent control system 8 monitors and displays the changes in soil mass obtained by gravity sensor 3-4 in real time;

[0084] 6) After 1.2 hours, the intelligent control system 8 displays that the gravity sensor 3-4 measured the soil mass to be 112 kg. The system automatically controls the wing plate 3-6 of the gravity sensor 3-4 to open downwards, and the soil falls into the modifier soil preparation area 1-1.

[0085] 7) The wing plate 3-6 of gravity sensor 3-4 is closed. If the mass detected by gravity sensor 3-4 is greater than 0.05 kg, the wing plate 3-6 of gravity sensor 3-4 will be opened again.

[0086] 8) Repeat step 7 until the mass monitored by gravity sensor 3-4 is less than 0.05kg, the intelligent control system 8 controls the moisture content soil mixing equipment 3 to close, the first valve 8-1 of water pump delivery pipe 1-6 to close, and the water pump 4 to be manually turned off.

[0087] 9) Since the modifier addition ratio is "0%" and the mixing number is set to "0", the intelligent control system skips the modifier soil mixing process;

[0088] 10) Observe the soil height in the soil mixing box 1, adjust the panel angle and the height of the upper panel 2-1 of the bulldozer 2 through the intelligent control system 8, start the bulldozer 2, the vibration base 7 will automatically close, the soil outlet 1-5 will open, and place the soil container below the soil outlet 1-5.

[0089] 11) After the bulldozer 2 pushes out all the soil in the modifier mixing area 1-1, it automatically retracts. The intelligent control system 8 then commands the soil outlet 1-5 to close. 100kg of soil with a moisture content of 12% is mixed in about 1.2 hours.

[0090] Example 2:

[0091] To prepare target soil with a modifier dosage of 1% using 50kg of plain soil, the following steps are included:

[0092] 1) Start the intelligent uniform soil mixing test device, set the soil mass to "50kg", the moisture content to "natural", the mixing time to "2 hours", the modifier addition ratio to "1%", and the mixing times to "10" in the intelligent control system 8;

[0093] 2) Open the soil inlet 1-4, pour the crushed 50kg of natural soil into the soil mixing box 1 through the soil inlet 1-4, close the soil inlet 1-4, select to start soil mixing through the intelligent control system 8, and manually turn on the modifier delivery pump 6.

[0094] 3) Since the moisture content is set to "natural", the intelligent control system 8 skips the moisture content soil preparation process, the wing plate 3-6 of the gravity sensor 3-4 opens downwards, and the soil falls into the modifier soil preparation area.

[0095] 4) When the vibrating base 7 is activated, the soil vibrates along with the soil mixing box 1;

[0096] 5) The modifier mixing equipment 5 is started, the second valve 8-2 of the modifier pumping pipe 1-7 is opened, the mixing wing arm 5-1 is deployed, and the modifier is delivered by the modifier delivery pump 6 through the modifier pumping pipe 1-7 into the weighing pipe 5-3.

[0097] 6) Based on the set soil mixing time of "2 hours", modifier addition ratio of "1%", and mixing times of "10", when the modifier mass in weighing pipe 5-3 is 0.05kg, the intelligent control system 8 controls the second valve 8-2 of modifier pumping pipe 1-7 to close and the uniform discharge port 5-4 of weighing pipe 5-3 to open.

[0098] 7) The modifier rotates with the modifier mixing equipment 5 and falls into the soil through the opening at the flat pipe wall. The soil in the modifier mixing zone 1-1 is evenly distributed with the vibration of the mixing box 1 and is repeatedly mixed under the drive of the mixing wing arm 5-1 for 12 minutes.

[0099] 8) Repeat steps 6 and 7 a total of 10 times. The intelligent control system 8 controls the modifier mixing equipment 5 to shut down, the mixing wing arm 5-1 to fold, the second valve 8-2 of the modifier pumping pipe 1-7 to shut down, and the modifier delivery pump 6 to be manually shut down.

[0100] 9) Observe the soil height in the soil mixing box 1, adjust the angle between the upper panel 2-1 and the lower panel 2-2 and the height of the upper panel 2-1 through the intelligent control system 8, start the bulldozer 2, the vibration base 7 will automatically close, the soil outlet 1-5 will open, and place the soil-bearing container below the soil outlet 1-5.

[0101] 10) After the bulldozer 2 pushes out all the soil in the modifier mixing area 1-1, it automatically retracts. The intelligent control system 8 then commands the soil outlet 1-5 to close. The mixing of 50 kg of natural soil with a modifier content of 1% is completed in about 2 hours.

[0102] Example 3:

[0103] To prepare target soil with a moisture content of 15% and a modifier dosage of 1% using 100 kg of dry soil, the following steps are included:

[0104] 1) Start the intelligent uniform soil mixing test device, and set the soil mass to "100kg", the moisture content to "15%", the soil mixing time to "4 hours", the modifier addition ratio to "1%", and the mixing times to "10" in the intelligent control system 8.

[0105] 2) Open the soil inlet 1-4, pour 100kg of crushed dry soil into the soil mixing box 1 through the soil inlet 1-4, close the soil inlet 1-4, select to start soil mixing through the intelligent control system 8, manually turn on the water pump 4, and manually turn on the modifier delivery pump 6.

[0106] 3) The moisture content soil mixing equipment 3 is started, the first valve 8-1 of the water pump delivery pipe 1-6 is opened, and water is pumped by the water pump 4 through the water pump delivery pipe 1-6 into the high-power water atomizing rod 3-1. A large amount of atomized water is generated in the moisture content soil mixing zone 1-1 of the soil mixing box 1, the rotating brush 3-2 starts to rotate, and the soil particles on the surface of the dust filter screen 3-3 fall off.

[0107] 4) When the vibrating base 7 is started, the soil vibrates with the soil mixing box 1, and the soil particles fully and evenly absorb the atomized water, and the soil mass continuously increases.

[0108] 5) Gravity sensor 3-4 is activated, and intelligent control system 8 monitors and displays the changes in soil mass obtained by gravity sensor 3-4 in real time;

[0109] 6) After 1.5 hours, the intelligent control system 8 displays that the gravity sensor 3-4 has measured the soil mass to be 115 kg. The system automatically controls the wing plate 3-6 of the gravity sensor 3-4 to open downwards, and the soil falls into the modifier soil mixing area 1-1.

[0110] 7) The wing plate 3-6 of gravity sensor 3-4 is closed. If the mass detected by gravity sensor 3-4 is greater than 0.05 kg, the wing plate 3-6 of gravity sensor 3-4 will be opened again.

[0111] 8) Repeat step 7 until the mass monitored by gravity sensor 3-4 is less than 0.05kg, the intelligent control system 8 controls the moisture content soil mixing equipment 3 to close, the first valve 8-1 of water pump delivery pipe 1-6 to close, and the water pump 4 to be manually turned off.

[0112] 9) The modifier mixing equipment 5 is started, the second valve 8-2 of the modifier pumping pipe 1-7 is opened, the mixing arm 5-1 is deployed, and the modifier is delivered by the modifier delivery pump 6 through the modifier pumping pipe 1-7 into the weighing pipe 5-3.

[0113] 10) Based on the set soil mixing time of "4 hours", modifier addition ratio of "1%", and mixing times of "10", when the modifier mass in weighing pipe 5-3 is 0.1kg, the intelligent control system 8 controls the second valve 8-2 of the modifier delivery pump 6 to close and the uniform discharge port 5-4 of weighing pipe 5-3 to open.

[0114] 11) The modifier rotates with the modifier mixing equipment 5 and falls into the soil through the opening at the flat pipe wall. The soil in the modifier mixing zone 1-1 is evenly distributed with the vibration of the mixing box 1 and is repeatedly mixed under the drive of the mixing wing arm 5-1 for 15 minutes.

[0115] 12) Repeat steps 10 and 11 a total of 10 times. The intelligent control system 8 controls the modifier soil mixing equipment 5 to shut down, the mixing wing arm 5-1 to fold, the second valve 8-2 of the modifier pumping pipe 1-7 to shut down, and the modifier delivery pump 6 to be manually shut down.

[0116] 13) Observe the soil height in the soil mixing box 1, adjust the angle between the upper panel 2-1 and the lower panel 2-2 and the height of the upper panel 2-1 through the intelligent control system 8, start the bulldozer 2, the vibration base 7 will automatically close, the soil outlet 1-5 will open, and place the soil sample collection container below the soil outlet 1-5.

[0117] 14) After the bulldozer 2 pushes out all the soil in the modifier mixing area 1-1, it automatically retracts. The intelligent control system 8 then commands the soil outlet 1-5 to close. 100kg of soil with a moisture content of 15% and a modifier content of 1% is prepared, which takes about 4 hours.

[0118] It should be understood that the above embodiments are preferred examples of the present invention. The present invention is not limited to the above embodiments. Any additions and substitutions made by those skilled in the art to the technical solution without departing from the technical solution of the present invention, based on conventional technical means in the art, should be included within the scope defined by the claims of the present invention.

Claims

1. An intelligent uniform soil mixing test device, comprising a soil mixing box (1), characterized in that, Inside the soil mixing box (1), bulldozing equipment (2), moisture content soil mixing equipment (3), and modifier soil mixing equipment (5) are installed; outside the soil mixing box (1), water pump (4), modifier delivery pump (6), and intelligent control system (8) are installed, and a vibration base (7) is installed at the bottom of the soil mixing box (1); wherein: the soil mixing box (1) is made of plexiglass, and the internal soil condition can be observed; the soil mixing box (1) is divided into a moisture content soil mixing area (1-1), a modifier soil mixing area (1-2), and a connecting area (1-3), the moisture content soil mixing area (1-1) has an inlet (1-4) at the top, the modifier soil mixing area (1-2) has an outlet (1-5) at the front, and the bulldozing equipment (2) is installed at the lower rear of the modifier soil mixing area (1-2). The connection area (1-3) is respectively equipped with a water pump delivery pipe (1-6) of the water pump (4) and a modifier delivery pump pipe (1-7) of the modifier delivery pump (6). Among them, the water pump delivery pipe (1-6) is connected to the moisture content soil mixing equipment (3) in the connection area (1-3) of the soil mixing box (1) and is connected to the external water pump (4). The interface between the water pump delivery pipe (1-6) and the water pump (4) is equipped with a first valve (8-1) controlled by the intelligent control system (8); the modifier delivery pipe (1-7) is connected to the modifier soil mixing equipment (5) in the connection area (1-3) of the soil mixing box (1) and is connected to the modifier delivery pump (6). The interface between the modifier delivery pipe (1-7) and the modifier delivery pump (6) is equipped with a first valve (8-1) controlled by the intelligent control system (8). Two valves (8-2); the modified soil mixing equipment (5) is a rounded rectangular tube, with mixing wings (5-1) at the rounded corners and evenly distributed openings (5-2) on the flat pipe wall; a weighing pipe (5-3) is provided at the center of the rounded rectangular tube, which is connected to the modified agent pumping pipe (1-7), and the weighing pipe (5-3) has a uniform discharge port (5-4) controlled by the intelligent control system (8) on its wall; the mixing wings (5-1) are provided with a folding shaft for unfolding when the mixing wings (5-1) are working; the vibrating base (7) includes a fixed panel (7-1) and a vibrating motor (7-2); the fixed panel (7-1) has a groove for fixing the soil mixing box (1) to the vibrating base. Above the seat (7); the vibration motor (7-2) is connected to the fixed panel (7-1) via a spring (7-3); the intelligent control system (8) is used to achieve the following functions: real-time display of soil quality, moisture content, and modifier addition ratio in the soil mixing box (1); control the opening and closing of the soil inlet (1-4) and the soil outlet (1-5) when the soil mixing box (1) is working; adjust the height of the upper panel (2-1) of the bulldozer (2), the power of the water atomizing rod (3-1) of the moisture content soil mixing equipment (3), and the switch of the wing plate (3-6) in the gravity sensor (3-4); adjust the opening and closing of the uniform discharge port (5-4) and the unfolding and folding of the mixing wing arm (5-1); adjust the vibration frequency and time of the vibration base (7).

2. The intelligent uniform soil mixing test device as described in claim 1, characterized in that, The bulldozing device (2) has a bulldozing panel divided into an upper panel (2-1) and a lower panel (2-2), with an adjustable rotatable angle between the upper panel (2-1) and the lower panel (2-2); the upper panel (2-1) is provided with a telescopic wing plate (2-3) for adjusting the bulldozing height.

3. The intelligent uniform soil mixing test device as described in claim 1, characterized in that, The soil mixing equipment (3) for moisture content includes a high-power water atomizing rod (3-1), a rotating brush (3-2), a dust filter (3-3), and a gravity sensor (3-4); wherein: the water atomizing rod (3-1) has a central opening that is connected to a water pump pipe (1-6); the rotating brush (3-2) surrounds the outside of the high-power water atomizing rod (3-1); the dust filter (3-3) surrounds the outside of the rotating brush (3-2) to prevent soil particles from entering; the atomized water generated by the high-power water atomizing rod (3-1) can freely pass through the rotating brush (3-2) and the dust filter (3-3). During operation, the rotating brush (3-2) rotates to clean the soil particles attached to the surface of the dust filter (3-3).

4. The intelligent uniform soil mixing test device as described in claim 3, characterized in that, The gravity sensor (3-4) is shaped like a frustum, with a vertical plate (3-5) on its upper side connected to a dust filter (3-3), and wing plates (3-6) on both sides. The wing plates (3-6) can be opened downwards. Both the gravity sensor (3-4) and the wing plates (3-6) are set with a downward tilt angle to facilitate the sliding of soil.

5. The method of using the intelligent uniform soil mixing test device according to any one of claims 1-4, characterized in that, The process includes the following steps: 1) Start the intelligent uniform soil mixing test device, and set the target moisture content, modifier addition ratio, soil mixing time, and mixing times in the intelligent control system; 2) Open the soil inlet, add finely ground soil into the moisture content soil mixing zone, and close the soil inlet; 3) The moisture content soil mixing equipment starts working, and the high-power water atomizing rod begins to release atomized water; at the same time, the vibration base starts working, and the soil in the soil mixing box begins to vibrate. Soil vibration and atomized water can prevent soil agglomeration and ensure uniform soil moisture content; 4) The intelligent control system calculates the soil mass increment through the gravity sensor of the moisture content soil mixing equipment to determine the soil moisture content. When the moisture content reaches the set target value, the wing plate in the gravity sensor opens, the soil falls into the modifier soil mixing zone, and the moisture content soil mixing equipment stops working; 5) The modifier mixing equipment starts rotating, the mixing arms unfold, and the intelligent control system calculates the required modifier mass based on the initial added soil mass and the set mixing time, and divides it evenly several times; when the weighing tube reaches the divided mass, the uniform discharge port opens, the modifier enters the rounded rectangular tube, and falls freely into the soil from the opening as the modifier mixing equipment rotates; the mixing arms ensure that the soil and modifier are fully mixed, and the vibration ensures that the modified soil is evenly distributed in the modifier mixing area; 6) when the set mixing time is reached, the modifier mixing equipment stops working, the mixing arms fold, the vibration base stops working, and the soil mixing is completed; 7) by setting the appropriate panel angle and height of the bulldozer through the intelligent control system, the soil outlet opens, the bulldozer works, and pushes the mixed soil into the soil sample container.

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