Plant-mixed rolled and solidified soil construction method
By mixing the solidified soil evenly in the factory and then precisely spreading and compacting it on the construction site, combined with fiber reinforcement and a high-efficiency mixer, the problems of complex construction process and low construction efficiency are solved, and efficient and stable solidified soil construction is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN SEZ CONSTR GRP CO LTD
- Filing Date
- 2026-03-21
- Publication Date
- 2026-06-12
Smart Images
Figure CN122190104A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of solidified soil mixing, and more specifically, to a plant-mixed roller-compacted solidified soil construction method. Background Technology
[0002] Solidified soil is a new type of material that is formed by adding a solidifying agent to natural soil, followed by mechanical mixing, spreading and compaction. It is widely used in roadbed filling, foundation treatment and other fields.
[0003] There are two main construction methods for solidified soil: road mixing and plant mixing. Plant mixing involves mixing soil materials, solidifying agents, admixtures, and water in a unified mixing site, using a forced mixer, and then transporting the mixture to the construction site for compaction.
[0004] However, improving the construction efficiency of solidified soil through plant-mixed construction methods has always been a technical challenge.
[0005] Existing methods for solidifying soil have several drawbacks. First, the construction process is complex, requiring close coordination between stages from soil pretreatment to mixing, transportation, paving, and compaction. Otherwise, construction delays and reduced efficiency are likely to occur. On the other hand, the construction process at the construction site lacks refinement. For example, uneven paving may lead to repeated rework due to insufficient compaction in certain areas, thus affecting construction efficiency. Summary of the Invention
[0006] The purpose of this invention is to provide a plant-mixed roller-compacted solidified soil construction method, which aims to solve the problem of low construction efficiency of solidified soil in the prior art.
[0007] This invention is implemented as follows: a plant-mixed, roller-compacted soil solidification construction method, comprising the following construction steps: 1) Mix the soil, solidifying agent, and water to form solidified soil; 2) Transport the solidified soil to the construction site; 3) Measure and set out the construction area at the construction site; 4) Compact the subgrade soil in the construction area to form the base course; 5) Spread the solidified soil on the subbase to form a solidified soil layer; 6) The solidified soil layer is rolled to make it compacted and flat, covering the subbase.
[0008] Furthermore, construction steps 5) and 6) are repeated to form multiple layers of solidified soil on the subbase, and the multiple layers of solidified soil are combined into one.
[0009] Furthermore, in the construction step 1), the soil, curing agent, and water are placed in a mixer for mixing to form the solidified soil; during the mixing process of the solidified soil, fiber reinforcement is added to the mixer, and the soil, curing agent, water, and fiber reinforcement are mixed together, with the fiber reinforcement being wrapped and mixed in the solidified soil.
[0010] Furthermore, in construction step 1), the mixer includes a longitudinally arranged mixing drum, the mixing drum having a mixing chamber, the mixing chamber having a longitudinally elastically movable disk, the movable disk dividing the mixing chamber into an elastic chamber and a mixing chamber, the elastic chamber being located below the movable disk, the mixing chamber being located above the movable disk, and the elastic chamber and the mixing chamber being arranged in isolation. The mixing chamber is equipped with a rotating shaft, and the outer periphery of the rotating shaft is provided with multiple blades, which are arranged at intervals along the circumference of the rotating shaft. The soil, solidifying agent and water are placed in the mixing chamber, and the rotating shaft drives the multiple blades to rotate. The multiple blades stir and mix the soil, solidifying agent and water to form the solidified soil. During the process of mixing and solidifying the soil by multiple blades, the movable disc moves longitudinally and elastically due to pressure changes, driving the solidified soil in the mixing chamber to vibrate longitudinally and reciprocally.
[0011] Furthermore, in construction step 1), the elastic cavity is provided with a longitudinally arranged longitudinal shaft, which passes through the movable disc, and the outer periphery of the movable disc is sealed with the inner wall of the elastic cavity; a spring is sleeved on the outer periphery of the longitudinal shaft, the bottom of the spring is fixed to the bottom of the elastic cavity, and the top of the spring abuts against the movable disc from bottom to top. During the process of mixing and solidifying the soil by multiple blades, the movable disc is subjected to pressure changes, and the spring moves elastically to cause the movable disc to move elastically back and forth longitudinally.
[0012] Furthermore, in construction step 1), the top of the mixing drum is provided with a longitudinally reciprocating lifting platform, and the lifting platform is provided with a motor. The motor is connected to the rotating shaft and drives the rotating shaft to move longitudinally reciprocally. During the process of mixing and solidifying the soil by multiple blades, the lifting platform moves longitudinally reciprocally so that the rotating shaft moves longitudinally reciprocally in the mixing chamber, and the multiple blades perform circumferential rotation and longitudinal agitation on the solidified soil.
[0013] Furthermore, in the construction step 1), the blades are arranged in an inclined manner along the circumference of the rotation axis, and the blades are provided with longitudinally arranged through holes; during the process of multiple blades mixing and solidifying the soil, the solidified soil is dispersed through the through holes.
[0014] Furthermore, in construction step 1), the interior of the rotating shaft is hollow, forming a water injection chamber, and the outer circumference of the rotating shaft is provided with multiple water injection ports; the soil and curing agent are added to the mixing chamber, and multiple blades inject high-pressure water into the water injection chamber while stirring the soil and curing agent, and the water in the water injection chamber is sprayed outward through multiple water injection ports, so that the soil, curing agent and water are stirred and mixed to form the solidified soil.
[0015] Furthermore, in construction step 1), an iron mesh layer is fitted around the outer periphery of the rotating shaft. The iron mesh layer has multiple mesh holes, the diameter of which is smaller than the diameter of the water inlet, and the iron mesh layer covers multiple water inlets. When high-pressure water is injected into the water injection chamber, the water in the water injection chamber passes through the water injection port and the mesh in sequence and is sprayed outward in a divergent manner.
[0016] Furthermore, in the construction step 1), the outer periphery of the blade has an outer edge, and the outer edge extends outward with two opposing inclined side plates, which enclose a side groove with an outer opening; during the process of multiple blades mixing and solidifying the soil, the two side plates separate and disperse the solidified soil.
[0017] Compared with existing technologies, the plant-mixed roller-compacted soil construction method provided by this invention has the following technical advantages: 1) From the perspective of overall process optimization, in the setting of each step, the soil, solidifying agent and water are first thoroughly mixed in the factory to form solidified soil, and then transported to the construction site for subsequent processes. This division of labor avoids the impact of environmental interference and operational inconvenience on on-site mixing, thereby mitigating the risk of construction delays caused by poor coordination between processes and improving the construction efficiency of solidified soil.
[0018] 2) The two steps of surveying and setting out to determine the construction area and compacting the subbase soil to form the base course lay a solid foundation for the subsequent precise spreading and compaction of the solidified soil layer; This construction plan, combined with a stable subbase, allows the solidified soil layer to better meet construction needs, reducing frequent adjustments and rework due to insufficient prior preparation, further shortening the construction cycle and meeting the requirements for efficient construction.
[0019] 3) The operation of compacting the solidified soil layer ensures the reliability of the overall construction quality, reduces the quality risks and later repair costs caused by uneven compaction, and enables the plant-mixed roller compaction solidified soil construction method to not only guarantee construction quality, but also improve the construction efficiency of solidified soil. Attached Figure Description
[0020] Figure 1This is a schematic flowchart of the plant-mixed roller-compacted soil construction method provided by the present invention; Figure 2 This is a schematic diagram of the interior of the stirring tank provided by the present invention; Figure 3 This is a cross-sectional schematic diagram of the rotating shaft provided by the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the blade provided by the present invention; In the diagram: mixing drum 100, movable plate 101, lifting platform 102, motor 103; Elastic cavity 200, longitudinal shaft 201, spring 202; Mixing chamber 300, rotating shaft 301, water injection chamber 302, water injection port 303, iron mesh layer 304; Blade 400, through hole 401, outer edge 402, side plate 403, side groove 404. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0022] The implementation of the present invention will be described in detail below with reference to specific embodiments.
[0023] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0024] Reference Figure 1-4 The image shows a preferred embodiment of the present invention.
[0025] The construction method for plant-mixed roller-compacted soil includes the following steps: 1) Mix the soil, solidifying agent, and water to form solidified soil; 2) Transport the solidified soil to the construction site; 3) Measure and set out the construction area at the construction site; 4) Compact the subgrade soil in the construction area to form the base course; 5) Spread the solidified soil on the subbase to form a solidified soil layer; 6) Compact the solidified soil layer to make it compacted and flat, covering the subbase.
[0026] The above-mentioned plant-mixed roller-compacted soil solidification construction method has the following technical advantages: 1) From the perspective of overall process optimization, in the setting of each step, the soil, solidifying agent and water are first thoroughly mixed in the factory to form solidified soil, and then transported to the construction site for subsequent processes. This division of labor avoids the impact of environmental interference and operational inconvenience on on-site mixing, thereby mitigating the risk of construction delays caused by poor coordination between processes and improving the construction efficiency of solidified soil.
[0027] 2) The two steps of surveying and setting out to determine the construction area and compacting the subbase soil to form the base course lay a solid foundation for the subsequent precise spreading and compaction of the solidified soil layer; This construction plan, combined with a stable subbase, allows the solidified soil layer to better meet construction needs, reducing frequent adjustments and rework due to insufficient prior preparation, further shortening the construction cycle and meeting the requirements for efficient construction.
[0028] 3) The operation of compacting the solidified soil layer ensures the reliability of the overall construction quality, reduces the quality risks and later repair costs caused by uneven compaction, and enables the plant-mixed roller compaction solidified soil construction method to not only guarantee construction quality, but also improve the construction efficiency of solidified soil.
[0029] In this embodiment, construction steps 5) and 6) are repeated to form multiple layers of solidified soil on the base layer, and the multiple layers of solidified soil are combined into one; in this way, the overall strength and stability of the solidified soil layer can be enhanced, and the multi-layer structure can evenly distribute the pressure of the upper layer, avoiding damage caused by local stress concentration.
[0030] For example, in road or foundation construction, multi-layered solidified soil can better adapt to the repeated effects of traffic loads, reduce the occurrence of road surface cracks, and lower later maintenance costs. At the same time, the tightly bonded multi-layered solidified soil can also improve waterproof performance, prevent water from penetrating to the base layer, further ensure construction quality, and improve construction efficiency.
[0031] In this embodiment, in construction step 1), the soil, curing agent and water are placed in a mixer for mixing to form solidified soil; during the mixing of the solidified soil, fiber reinforcement is added to the mixer, and the soil, curing agent, water and fiber reinforcement are mixed together, with the fiber reinforcement being wrapped and mixed in the solidified soil.
[0032] This improves the tensile strength and toughness of the solidified soil. In particular, the fiber reinforcement acts like a tiny reinforcing skeleton inside the solidified soil, limiting the propagation of microcracks generated during the hardening process and enhancing the integrity and stability of the solidified soil.
[0033] In actual construction, reinforced soil with added fiber reinforcement can better resist the tensile stress caused by foundation settlement, reduce the risk of foundation cracking, improve the bearing capacity of the foundation, thereby improving construction quality and reducing engineering maintenance caused by foundation problems in the later stage.
[0034] In this embodiment, in construction step 1), the mixer includes a longitudinally arranged mixing drum 100, which has a mixing chamber. The mixing chamber is provided with a longitudinally elastically movable disk 101, which divides the mixing chamber into an elastic chamber 200 and a mixing chamber 300. The elastic chamber 200 is located below the movable disk 101, and the mixing chamber 300 is located above the movable disk 101. The elastic chamber 200 and the mixing chamber 300 are arranged separately. A rotating shaft 301 is provided in the mixing chamber 300, and multiple blades 400 are provided on the outer periphery of the rotating shaft 301. The multiple blades 400 are arranged at intervals along the circumference of the rotating shaft 301. Soil, solidifying agent and water are placed in the mixing chamber 300, and the rotating shaft 301 drives the multiple blades 400 to rotate. The multiple blades 400 stir and mix the soil, solidifying agent and water to form solidified soil. During the process of mixing and solidifying the soil by multiple blades 400, the movable disc 101 moves longitudinally and elastically due to pressure changes, driving the solidified soil in the mixing chamber 300 to vibrate longitudinally and reciprocally.
[0035] The elastic movement of the movable disc 101 causes the solidified soil in the mixing chamber 300 to vibrate longitudinally during the mixing process. This vibration helps to eliminate air bubbles in the solidified soil, making it more compact and uniform, and improving the quality of the solidified soil.
[0036] Furthermore, the elastic movement of the movable disc 101 can increase the mixing force and range, ensuring that the soil, curing agent and water are fully mixed, accelerating the reaction speed, shortening the mixing time and improving construction efficiency.
[0037] For example, when mixing large quantities of solidified soil for large-scale foundation projects, this mixer can quickly and efficiently produce high-quality solidified soil, saving time for subsequent construction and improving the overall construction progress.
[0038] In this embodiment, in construction step 1), a longitudinal shaft 201 is provided in the elastic cavity 200, the longitudinal shaft 201 passes through the movable disk 101, and the outer periphery of the movable disk 101 is sealed with the inner sidewall of the elastic cavity 200; a spring 202 is sleeved on the outer periphery of the longitudinal shaft 201, the bottom of the spring 202 is fixed to the bottom of the elastic cavity 200, and the top of the spring 202 abuts against the movable disk 101 from bottom to top; During the process of mixing and solidifying the soil by multiple blades 400, the movable disc 101 is subjected to pressure changes, and the spring 202 moves elastically to make the movable disc 101 move elastically back and forth longitudinally.
[0039] The spring 202 provides elastic support for the movable disc 101, allowing it to move flexibly longitudinally back and forth according to the pressure changes within the mixing chamber 300 during the mixing process. This not only enhances the uniformity and intensity of the mixing but also buffers the impact force generated during the mixing process to a certain extent, thus protecting the service life of the mixer.
[0040] During the actual mixing process, when the blade 400 mixes the solidified soil, the pressure inside the mixing chamber 300 changes, and the movable disc 101 moves accordingly under the action of the spring 202. This movement drives the flow and mixing of the solidified soil, making the components of the solidified soil more evenly combined, improving the quality of the solidified soil, reducing construction problems caused by uneven materials, and thus improving construction efficiency.
[0041] In this embodiment, in construction step 1), the top of the mixing drum 100 is provided with a longitudinally reciprocating lifting platform 102, and the lifting platform 102 is provided with a motor 103. The motor 103 is connected to the rotating shaft 301 and drives the rotating shaft 301 to move longitudinally reciprocally. During the process of multiple blades 400 mixing and solidifying the soil, the lifting platform 102 moves longitudinally reciprocally so that the rotating shaft 301 moves longitudinally reciprocally in the mixing chamber 300. The multiple blades 400 perform circumferential rotation mixing and longitudinal agitation on the solidified soil.
[0042] This composite mixing method can more thoroughly mix the solidified soil, break up the agglomerates in the solidified soil, and allow the solidifying agent to fully contact and react with the soil, thereby improving the strength and uniformity of the solidified soil.
[0043] This mixing method is particularly suitable for mixing highly viscous soil and hardener. It effectively avoids dead zones in the mixing process, ensuring that each part of the soil is fully mixed with the hardener, shortening the mixing time, improving construction efficiency, and ensuring that the construction progress is not limited by the mixing process.
[0044] In this embodiment, during construction step 1), the blades 400 are arranged in an inclined manner along the circumference of the rotating shaft 301, and the blades 400 are provided with longitudinally arranged through holes 401; during the process of multiple blades 400 mixing and solidifying the soil, the solidified soil is dispersed through the through holes 401.
[0045] The inclined arrangement of the blades 400 increases the shear force during the mixing process, accelerating the mixing and homogenization of the solidified soil; while the through hole 401 provides a channel for dispersing the solidified soil.
[0046] When the solidified soil passes through the through hole 401, the large pieces of solidified soil are broken into smaller particles, which increases the contact area between the solidified soil and the solidifying agent, promotes the reaction, and thus improves the overall strength of the solidified soil.
[0047] In this embodiment, in construction step 1), the interior of the rotating shaft 301 is hollow, forming a water injection chamber 302, and multiple water injection ports 303 are provided on the outer periphery of the rotating shaft 301. Soil and curing agent are added to the mixing chamber 300. During the process of stirring the soil and curing agent, multiple blades 400 inject high-pressure water into the water injection chamber 302. The water in the water injection chamber 302 is sprayed outward through multiple water injection ports 303 so that the soil, curing agent and water are mixed to form solidified soil.
[0048] The high-pressure water jet not only ensures that the water is evenly distributed in the mixture, but also generates a strong impact force, further breaking up the soil particles and ensuring that the solidifying agent is fully mixed with the soil.
[0049] The combination of the water injection chamber 302 and the water injection port 303 allows for control over the amount and location of water addition, preventing localized over-wetting or over-drying. This water injection method ensures precise water addition, shortens mixing time, improves construction efficiency, and ensures that the mixing process meets requirements when mixing solidified soil with strict moisture content requirements.
[0050] In this embodiment, in construction step 1), an iron mesh layer 304 is sleeved on the outer periphery of the rotating shaft 301. The iron mesh layer 304 has multiple mesh holes, the diameter of which is smaller than the diameter of the water inlet 303, and the iron mesh layer 304 covers multiple water inlets 303. When high-pressure water is injected into the water injection chamber 302, the water in the water injection chamber 302 passes through the water injection port 303 and the mesh in sequence and is sprayed outward in a divergent manner.
[0051] The iron mesh layer 304 protects the water inlet 303, preventing large particles of soil or impurities from clogging it and ensuring that high-pressure water can be sprayed out smoothly.
[0052] Meanwhile, the diameter of the mesh is smaller than that of the water inlet 303, which allows the water to be further dispersed as it passes through the mesh, forming a finer water mist. This increases the contact area between the water and the soil and solidifying agent, promoting the mixing reaction of the three.
[0053] In this embodiment, in construction step 1), the outer periphery of the blade 400 has an outer side 402, and the outer side 402 extends outward with two opposing inclined side plates 403. The two side plates 403 enclose each other to form a side groove 404 with an outer opening. During the process of multiple blades 400 mixing and solidifying the soil, the two side plates 403 separate and disperse the solidified soil.
[0054] When the blade 400 rotates, the two opposing and inclined side plates 403 push the solidified soil to both sides and separate it, breaking the agglomeration of the solidified soil and making it looser, which makes it easier for the solidifying agent to mix fully with the soil.
[0055] The side groove 404 provides space for the flow of solidified soil, avoids excessive accumulation of solidified soil on the outer periphery of blade 400, and improves mixing efficiency.
[0056] When mixing highly viscous soil, this blade 400 structure can prevent the soil from adhering to the blade 400, ensuring the continuity and uniformity of the mixing process, improving construction efficiency, and reducing rework caused by insufficient mixing.
[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for constructing plant-mixed, roller-compacted, and solidified soil, characterized in that: The construction steps include the following: 1) Mix the soil, solidifying agent, and water to form solidified soil; 2) Transport the solidified soil to the construction site; 3) Measure and set out the construction area at the construction site; 4) Compact the subgrade soil in the construction area to form the base course; 5) Spread the solidified soil on the subbase to form a solidified soil layer; 6) The solidified soil layer is rolled to make it compacted and flat, covering the subbase.
2. The plant-mixed roller-compacted soil construction method as described in claim 1, characterized in that, Repeat construction steps 5) and 6) to form multiple layers of solidified soil on the subbase, and the multiple layers of solidified soil are combined into one.
3. The plant-mixed roller-compacted soil construction method as described in claim 1 or 2, characterized in that, In construction step 1), the soil, curing agent, and water are placed in a mixer and mixed to form the solidified soil. During the mixing process of the solidified soil, fiber reinforcement is added to the mixer. The soil, curing agent, water, and fiber reinforcement are mixed together, and the fiber reinforcement is wrapped and mixed in the solidified soil.
4. The plant-mixed roller-compacted soil construction method as described in claim 3, characterized in that, In construction step 1), the mixer includes a longitudinally arranged mixing drum, the mixing drum having a mixing chamber, the mixing chamber having a longitudinally elastically movable disk, the movable disk dividing the mixing chamber into an elastic chamber and a mixing chamber, the elastic chamber being located below the movable disk, the mixing chamber being located above the movable disk, and the elastic chamber and the mixing chamber being arranged in isolation. The mixing chamber is provided with a rotating shaft, and the outer periphery of the rotating shaft is provided with multiple blades, which are arranged at intervals along the circumference of the rotating shaft. The soil, solidifying agent, and water are placed in a mixing chamber. The rotating shaft drives multiple blades to rotate, and the multiple blades stir and mix the soil, solidifying agent, and water to form the solidified soil. During the process of mixing and solidifying the soil by multiple blades, the movable disc moves longitudinally and elastically due to pressure changes, driving the solidified soil in the mixing chamber to vibrate longitudinally and reciprocally.
5. The plant-mixed roller-compacted soil construction method as described in claim 4, characterized in that, In construction step 1), the elastic cavity is provided with a longitudinally arranged longitudinal shaft, which passes through the movable disc. The outer periphery of the movable disc is sealed with the inner wall of the elastic cavity. A spring is sleeved on the outer periphery of the longitudinal shaft. The bottom of the spring is fixed to the bottom of the elastic cavity, and the top of the spring abuts against the movable disc from bottom to top. During the process of mixing and solidifying the soil by multiple blades, the movable disc is subjected to pressure changes, and the spring moves elastically to cause the movable disc to move elastically back and forth longitudinally.
6. The plant-mixed roller-compacted soil construction method as described in claim 4, characterized in that, In construction step 1), the top of the mixing drum is provided with a longitudinally reciprocating lifting platform, and the lifting platform is provided with a motor. The motor is connected to the rotating shaft and drives the rotating shaft to move longitudinally reciprocally. During the process of mixing and solidifying the soil by multiple blades, the lifting platform moves longitudinally reciprocally so that the rotating shaft moves longitudinally reciprocally in the mixing chamber, and the multiple blades perform circumferential rotation and longitudinal agitation on the solidified soil.
7. The plant-mixed roller-compacted soil construction method as described in claim 4, characterized in that, In construction step 1), the blades are arranged in an inclined manner along the circumference of the rotation axis, and the blades are provided with longitudinally arranged through holes; during the process of multiple blades mixing and solidifying the soil, the solidified soil is dispersed through the through holes.
8. The plant-mixed roller-compacted soil construction method as described in claim 7, characterized in that, In construction step 1), the interior of the rotating shaft is hollow, forming a water injection chamber, and multiple water injection ports are provided on the outer periphery of the rotating shaft. The soil and curing agent are added to the mixing chamber, and multiple blades inject high-pressure water into the water injection chamber while stirring the soil and curing agent. The water in the water injection chamber is sprayed outward through multiple water injection ports to mix the soil, curing agent and water to form the solidified soil.
9. The plant-mixed roller-compacted soil construction method as described in claim 8, characterized in that, In construction step 1), an iron mesh layer is fitted around the outer periphery of the rotating shaft. The iron mesh layer has multiple mesh holes, the diameter of which is smaller than the diameter of the water inlet, and the iron mesh layer covers multiple water inlets. When high-pressure water is injected into the water injection chamber, the water in the water injection chamber passes through the water injection port and the mesh in sequence and is sprayed outward in a divergent manner.
10. The plant-mixed roller-compacted soil construction method as described in claim 4, characterized in that, In construction step 1), the outer periphery of the blade has an outer edge, and the outer edge extends outward with two opposing inclined side plates, which enclose a side groove with an outer opening; during the process of multiple blades mixing and solidifying the soil, the two side plates separate and disperse the solidified soil.