CN113981774A - Spraying machine tool for quickly solidifying soil and road construction method - Google Patents

Abstract

The invention discloses a spraying machine tool for quickly solidifying soil and a road construction method, wherein the curing agent spraying machine tool for quickly solidifying soil comprises a spraying vehicle and a transport vehicle; the front end of the spraying vehicle is provided with a traction hook, the tail of the transport vehicle is provided with a hook hole, and the hook hole is sleeved on the traction hook; a power supply device is arranged in the transport vehicle; the spraying vehicle comprises a frame, a heavy roller chain is arranged at the tail end of the frame, and a heavy roller is arranged at the tail end of the heavy roller chain; the frame is provided with a power device, a plowing and stirring device, a mixture pipeline and a metering and batching device; the road construction method is realized by adopting the curing agent spraying machine tool for quickly hardening soil. The invention can realize the automatic preparation and spraying of the curing agent, and the curing agent is fully mixed with the soil, thereby realizing the rapid curing of the soil.

Description

Spraying machine tool for quickly solidifying soil and road construction method

Technical Field

The invention relates to a spraying machine tool for quickly solidifying soil and a road construction method, belonging to the technical field of military road construction engineering.

Background

The rapid reinforcement of soft ground is always a serious problem of emergency traffic guarantee. In emergency traffic guarantees of army maneuvering, earthquake disaster rescue and the like, road obstacles such as soft and muddy roads need to be overcome in a very short time, and emergency traffic of road traffic is guaranteed. The method has the advantages that the soft soil is quickly reinforced by the efficient soil curing agent, the problem of insufficient bearing capacity of the foundation is quickly and effectively solved, emergency passing of vehicles and equipment on the soft ground is ensured, and the method becomes an important development direction for ensuring quick curing of the soft ground in future emergency traffic. Conventional soil firming agents are generally used for permanent road engineering reinforcement, and it is generally difficult to meet the requirement of hardening a soft road for traffic within a very short time or even several hours.

Based on the requirements, at present, research and development of epoxy resin-based high-molecular fast curing materials (composed of A, B components) are developed by related units in China and are used for fast curing various soft soils. The new material can perform a curing reaction with soil in a very short time and gradually coagulate to form strength, and the strength requirement required by traffic can be met within 2 hours. However, the soil curing agent is used for reinforcing and improving soft soil, and the general method is to perform the following procedures: preparing and transporting soil body → spreading and drying soil of soil body → spreading under the optimal water content → stirring and crushing by a road surface machine → adding curing agent → mechanical mixing → rolling and forming → curing.

This conventional practice has the following disadvantages: firstly, the construction process is complicated, and the construction condition requires highly, and the control degree of difficulty is big, and the procedure is complicated moreover, generally needs the longer time just can accomplish. The material is condensed before the construction is finished, the contradiction between the material condensation time and the construction time exists, and the requirement that the vehicle can be started in a short time of several hours cannot be met; secondly, the construction can be completed only by more construction resources such as a paver, a mixer, a grader, a road roller and the like, a large amount of manpower and material resources are consumed, and the method is not suitable for ensuring the rapidity and the convenience of road engineering in wartime; thirdly, the curing time is long, and the enough strength cannot be formed in a short time; fourthly, the method is not suitable for the characteristics of the novel high-molecular rapid curing agent which is researched and developed at home at present. The novel curing agent can start to be coagulated within more than ten minutes, does not need a special compaction process, can gradually form strength in a short time, and has high coagulation and curing speed. The time interval from the beginning of construction to the beginning of setting and curing is short, and too many construction procedures and procedures are not allowed. The construction and the forming are carried out simultaneously.

Therefore, the conventional construction method can only be suitable for ordinary curing agent in ordinary road engineering construction and permanent reinforcement of soft soil foundation, and is difficult to meet the requirement of rapid reinforcement timeliness in wartime.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a spraying machine tool for quickly curing soil and a road construction method, which can realize automatic preparation and spraying of a curing agent, and can ensure that the curing agent is fully mixed with the soil to realize quick curing of the soil.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

in one aspect, the invention provides a curing agent spraying machine tool for quickly hardening soil, which comprises a spraying vehicle and a transport vehicle;

the front end of the spraying vehicle is provided with a traction hook, the tail of the transport vehicle is provided with a hook hole, and the hook hole is sleeved on the traction hook;

a power supply device is arranged in the transport vehicle;

the spraying vehicle comprises a frame, a heavy roller chain is arranged at the tail end of the frame, and a heavy roller is arranged at the tail end of the heavy roller chain;

the frame is provided with a power device, a plowing and stirring device, a mixture pipeline and a metering and batching device;

the ploughing and stirring device comprises a rotary cultivator and a power harrow which are oppositely arranged, the rotary cultivator is connected with the power harrow through a transmission chain, and the power harrow is connected with a power device;

the metering and batching device comprises a mixture stirring box and a plurality of material storage boxes;

the outlet of each storage box is connected with the inlet of a mixture stirring box, the outlet of the mixture stirring box is connected with the inlet of a mixture pipeline, each storage box is provided with a metering pump, the mixture pipeline is provided with a booster pump, and each metering pump and each booster pump are connected with a power supply device;

a plurality of through holes are formed in the mixed material pipeline, and a nozzle is arranged on each through hole.

Furthermore, the power supply device is arranged in a transport vehicle, and a plurality of material boxes are arranged in the transport vehicle; the material boxes and the material storage boxes are the same in number, the output end of each material box is connected with an inlet of each material storage box through a transmission pipeline, and each transmission pipeline is provided with a pipeline valve.

Further, the heavy roller is a cylinder with the diameter of 300 mm.

Furthermore, the number of the nozzles is 12, and the free ends of the nozzles are arranged on a cross beam at the front part of the frame.

Further, the rotary cultivator includes rotary cultivator axis of rotation and a plurality of cover establish the rotary cultivator blade in rotary cultivator axis of rotation, and every rotary cultivator blade includes 6 blades, and every blade major diameter is 0.2 meters.

Further, the power harrow includes power blade, and power blade thickness is 20 millimeters, and power blade length is 0.2 meters.

Further, a curing agent spraying apparatus for soil rapid hardening still include 2 heavy-duty traction wheels, set up respectively in frame both sides, every heavy-duty traction wheel diameter is 250 millimeters.

Further, a stirrer is arranged in the mixture stirring box.

On the other hand, the invention provides a road construction method, which is characterized in that the construction is carried out by adopting the curing agent spraying machine tool for quickly hardening soil, and the method comprises the following steps:

preparing a curing agent for rapid hardening of soil;

spraying the prepared curing agent for quickly hardening the soil onto the soil to be hardened;

ploughing and stirring the soil sprayed with the curing agent;

leveling, compacting, turning and stirring the soil.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, by arranging the metering and batching device, the precise metering and automatic preparation of the curing agent components can be realized, and the quality of the curing agent is ensured; the curing agent can be sprayed into the soil by arranging a booster pump, a mixture pipeline and a nozzle; the curing agent and the soil can be uniformly mixed by arranging the plowing and stirring device; by arranging the transport vehicle and the heavy roller, the machine can be pulled to advance, and the soil after being ploughed and stirred is leveled, compacted and turned to form a continuously hardened road channel, so that the contradiction between the setting time of the curing agent and the construction time is solved; through setting up power supply unit and power device, improved the degree of automation of spraying machines, can realize quick construction in succession.

Drawings

FIG. 1 is a schematic structural view of a transportation vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of one embodiment of the painting vehicle of the present invention;

FIG. 3 is a left side view of one embodiment of the vehicle of the present invention;

FIG. 4 is a top view of one embodiment of the vehicle of the present invention;

FIG. 5 is a schematic structural view of a power harrow of the invention;

FIG. 6 is a schematic structural view of an embodiment of the rotary tiller of the present invention;

in the figure: 1. a transport vehicle; 2. a spraying vehicle; 3. a frame; 11. a hook hole; 12 a power supply device; 13. a material box; 21. traction hanging; 23. a power plant; 211. heavy rollers; 222. a metering pump; 223. a material storage box; 224. a mixture stirring box; 231. a mixture pipeline; 232. a booster pump; 233. a nozzle; 241. a rotary cultivator; 242. a power harrow; 243. a hydraulic motor; 244. a blade of a rotary cultivator.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

The embodiment provides a curing agent spraying machine tool for quickly hardening soil, which comprises a spraying vehicle 2 and a transport vehicle 1; the front end of the spraying vehicle 2 is provided with a traction hook 21; the tail of the transport vehicle 1 is provided with a hook hole 11, and the hook hole 11 is sleeved on the traction hook 21; a power supply device 12 is arranged in the transport vehicle 1;

the spraying vehicle 2 comprises a frame 3, a heavy roller chain is arranged at the tail end of the frame 3, and a heavy roller 211 is arranged at the tail end of the heavy roller chain; the ploughed and stirred soil is leveled and compacted through the heavy roller 211 to form a channel.

The frame 3 is provided with a power device 23, a plowing and stirring device, a mixture pipeline 231 and a metering and batching device.

The ploughing and stirring device can be used for ploughing and stirring soil at a high speed and comprises a rotary cultivator 241 and a power harrow 242 which are arranged oppositely, wherein the rotary cultivator 241 is connected with the power harrow 242 through a transmission chain, and the power harrow 242 is connected with a power device 23.

The batching device comprises a mix stirring tank 224 and a plurality of storage tanks 223; the outlet of each storage box 223 is connected with the inlet of a mixture stirring box 224, the outlet of the mixture stirring box 224 is connected with the inlet of a mixture pipeline 231, wherein each storage box 223 is provided with a metering pump 222, and the flow value of the metering pump 222 is set according to the compounding proportion requirement of the curing agent, so that the flow rate of the materials in the storage box 223 is controlled, and the accurate metering of each component of the curing agent according to the formula design is realized; a booster pump 232 is arranged on the mixture pipeline 231 and used for increasing the pressure of the mixture pipeline 231 so that the liquid mixture is in a high-pressure flowing state in the mixture pipeline 231; each metering pump 222 and the booster pump 232 are connected with the power supply device 12; a plurality of through holes are formed in the mixture pipe 231, and each through hole is provided with a nozzle 233 for spraying the high-pressure mixture in the mixture pipe 231.

When the spraying vehicle 2 is applied to the embodiment, the crawler-type conveying vehicle 1 pulls the spraying vehicle through the hook, and the advancing speed is adjusted according to actual conditions.

In application, the power device 23 comprises a 35 model Changzhou diesel engine with 35 horsepower electrically started, is arranged at the rear part of the frame 3, and drives the power harrow 242 through a transmission chain, and the power harrow 242 drives the rotary cultivator 241 through the transmission chain; the power supply device 12 comprises a diesel power 6500W three-phase 380V generator, is arranged at the rear part of the transport vehicle 1, and transmits electric power to the metering pump 222 and the booster pump 232 of the spraying vehicle 2 through electric lines. The metering pump is a GM0-1000L common plunger metering pump, and has high metering precision, large flow and corrosion resistance; the booster pump is a model glan UPA15-160 for pressurizing mix and transporting mix through mix line 231 to nozzle 233.

The invention realizes the function of automatically and accurately preparing the curing agent by the metering and batching device; the continuous spraying operation is realized by arranging the mixture stirring box 224, the mixture pipeline 231, the booster pump 232 and the nozzle 233 for matching use; the curing agent and the soil can be fully stirred in time and rapidly by arranging the plowing and stirring device; through setting up heavy gyro wheel, realize compaction and flattening to the mixed soil after the stirring, can accomplish the construction operation of road sclerosis automatically in succession.

Example 2

On the basis of the embodiment 1, the power supply device 12 of the embodiment is arranged in the transport vehicle 1, and a plurality of material boxes 13 are arranged in the transport vehicle 1; the number of the material boxes 13 and the material storage boxes 223 is the same, the output end of each material box 13 is connected with the inlet of one material storage box 223 through a transmission pipeline, and each transmission pipeline is provided with a pipeline valve.

In application, the dosage of the curing agent at least accounts for 10% of the total amount of the mixed soil, and the dosage of the curing agent required by a longer emergency road is extremely large. Therefore, how to solve the problem of transportation of materials in wartime is also one of the keys for restricting the curing construction of roads. The invention utilizes the conveying vehicle to convey the storage material, and the storage box of the coating machine is connected, thereby providing a material source and traction power for the rapid operation of the coating machine, solving the problems of material transportation and material supply, and providing the forward power of the coating machine.

The heavy roller of this embodiment is a cylinder with a diameter of 300 mm. The number of the nozzles 233 is 12, and the free ends of the nozzles 233 are all arranged on the front cross beam of the frame 3.

The rotary cultivator 241 comprises a rotary cultivator rotating shaft and a plurality of rotary cultivator blades 244 arranged on the rotary cultivator rotating shaft in a sleeved mode, each rotary cultivator blade 244 comprises 6 blades, the length of each blade is 0.2 m, and the cutter head of each blade is arranged in an inclined mode relative to the cutter body in the same direction, so that the soil turning speed can be increased, and the soil turning effect can be improved.

The power harrow 242 comprises power blades, the thickness of the power blades is 20 mm, and the length of the power blades is 0.2 m, so as to enhance the stirring effect and the damage resistance of the power harrow 242. This embodiment includes 2 heavy-duty traction wheels, sets up respectively in frame 3 both sides, and every heavy-duty traction wheel diameter is 250 millimeters.

When the spraying vehicle 2 is applied to the embodiment, the spraying vehicle further comprises a hydraulic motor 243, the power supply device 12 supplies power to the hydraulic motor 243, and the hydraulic motor 243 supplies power to the power rake; the diesel engine provides power for the rotary cultivator. A stirrer is arranged in the mixture stirring box 224, and the stirrer is a common three-blade electric stirrer and is used for stirring and uniformly mixing the mixture to form a curing agent required by curing soil.

In application, the storage tank 223, the storage tank 13, the nozzle 233, the power rake 242, the rotary cultivator blade 244 and the heavy roller 211 are coated with the release agent one by one to make anti-sticking release.

According to the invention, by arranging the rotary cultivator blade with 6 blades and the length of each blade is 0.2 m, soil can be better ploughed and the ploughing effect can be enhanced; by setting the power harrow 242 with the thickness of the blade of 20 mm and the length of the power blade of 0.2 m, the stirring effect and the damage resistance of the power harrow 242 can be enhanced.

Example 3

The embodiment provides a road construction method, which is implemented by using the curing agent spraying machine for soil rapid hardening described in embodiment 1 or 2, and comprises the following steps:

s1, preparing a curing agent for rapid hardening of soil;

s2, spraying the prepared curing agent for quickly hardening the soil onto the soil to be hardened;

s3 ploughing and stirring the soil sprayed with the curing agent;

s4 leveling, compacting, ploughing and stirring the soil.

According to the invention, through adopting the curing agent spraying machine tool for rapid soil hardening for construction, the accuracy of the distribution ratio of the components in the curing agent preparation process can be improved, the operation efficiency can be improved, and the labor cost can be reduced.

The method is mainly suitable for rapid solidification construction of road soil in soft muddy obstacle areas, and can complete emergency road construction tasks in hour-level time, form emergency guarantee paths and guarantee that vehicle equipment can rapidly pass through the soft muddy obstacle areas.

Example 4

On the basis of embodiment 3, the road construction method of the embodiment includes the following steps:

starting the power supply device 12 on the transport vehicle 1 to supply power to the metering pump, the stirrer, the booster pump and the hydraulic motor 243;

starting a power device on the spraying vehicle 2 to provide power for the power harrow and the rotary cultivator;

and (3) opening pipeline valves of the material conveying boxes 13 filled with the curing agent and the resin respectively, enabling the curing agent and the resin to enter the mixture stirring box through corresponding metering pumps respectively, pressurizing the mixture through a booster pump after uniformly stirring the curing agent and the resin by a stirrer in the mixture stirring box, conveying the mixture to a nozzle 233 through a mixture pipeline 231, and spraying the road surface to be constructed.

The rotary cultivator and the power harrow plough the soil sprayed with the curing agent and the resin and fully stir the soil to uniformly mix the curing agent, the resin and the soil;

the transport vehicle 1 is driven forwards to drive the spraying machine to move forwards, and a heavy roller at the tail of the spraying machine presses the ploughed soil so as to level and compact the soil;

about 1 ~ 2h behind the flattening compaction soil, can realize that the vehicle equips fast current, the road has reached certain intensity this moment.

Example 5

On the basis of embodiment 3 or 4, the road construction method of the embodiment includes the following steps:

site cleaning: the construction method has the advantages that the surrounding environment of the construction access field is cleaned, garbage, sundries and the like which possibly influence construction are removed, and stones which possibly influence construction in the soil are cleaned.

Road route calibration: and establishing a marking group, generally consisting of 2-3 persons, but not limited to the marking of small red flags at the starting point, the ending point and the two sides of the passage of the construction road, and determining the position and the width of the construction road, wherein the position of the construction road should be selected on a relatively flat and soft muddy area as much as possible, but not limited to the marking.

Material usage and tool preparation: according to the design mixing ratio of the curing agent and the soil, calculating the amount of the road curing agent material required by the road, loading the curing agent material into the material transport vehicle 1, connecting the transport vehicle 1 with the spraying vehicle 2, and driving the spraying vehicle 2 to the starting point position of the preset operation area by the transport vehicle 1.

Standby and standby: starting the power supply device 12 and the power device 23, wherein the power supply device 12 supplies electric power to the metering pump 222, the stirrer, the booster pump 232 and the hydraulic motor 243; the power device 23 provides power for the rotary cultivator 241, the hydraulic motor 243 provides power for the power harrow 242,

automatic spraying: and opening a corresponding pipeline valve of the material box 13, enabling the curing agent and the resin to enter a mixture stirring box 224 through a metering pump 222, stirring by a stirrer, pressurizing by a pressurizing pump 232, and spraying the ground on the front part of the rotary cultivator 241. During spraying, the rotary cultivator 241 and the power harrow 242 turn over and stir the soil, so that the curing agent and the resin are uniformly mixed with the soil, and the heavy roller 211 compacts the turned and stirred soil. The construction operation is carried out according to the method, and the advancing speed of the transport vehicle 1 is 10 meters per minute.

According to the operation speed, the solidification construction of the emergency access with the length of 100 meters, the width of 3 meters and the depth of 0.15 meter is completed, about 10 minutes is needed, and when two vehicles are constructed simultaneously, only 5 minutes is needed; the emergency road with the length of 200 m, the width of 3 m and the depth of 0.15 m needs about 20 minutes, and similarly, when two vehicles are constructed simultaneously, only 10 minutes are needed, the contradiction between the setting time of the curing agent and the construction time is solved, so that the timeliness of traffic emergency guarantee is ensured.

Carrying and maintaining:

s1 road path identification;

and marking the solidified road pavement channel by using lime or a marker post, wherein the marking is mainly performed on the edge of the road pavement along the longitudinal direction of the road.

When the mark is made by lime, marking along the edge line of the solidified road path;

when marking with the marker post, the marker post is inserted into the uncured soft soil on the two sides along the edge line of the cured road path.

S2 organizing and loading;

according to the requirement of emergency traffic guarantee timeliness and the high and low curing performance of the rapid curing agent, traffic is organized according to the situation. The strength of the cured road gradually increases along with the increase of time, and gradually approaches to the strength and the bearing capacity of a common concrete pavement.

Therefore, in emergency traffic guarantee, light vehicles with light carrying weight are generally organized to be equipped with traffic vehicles, traffic vehicles with limited small density are arranged, and then the traffic density and the traffic volume are gradually increased until all traffic is opened.

In conclusion, the curing agent spraying machine tool for quickly hardening soil is adopted for construction, so that the field curing agent can be accurately prepared, and the quality of the curing agent is improved; enough materials can be stored in the transport vehicle 1, and the requirement of long-distance operation is met; the soil can be automatically ploughed, and the sprayed curing agent and the soil can be uniformly mixed, so that the labor cost is greatly reduced; the walking speed of a conveyor for dragging a spraying machine can be adjusted according to the setting time of the curing agent so as to solve the contradiction between the material setting time and the construction time; the soil that can turn over the stirring is leveled the compaction, makes the soil of certain thickness within range form the polymer knot solid that possesses certain intensity, realizes the fast curing of soft soil, and the mechanical strength demand of passing the vehicle can be satisfied to the soil after finally making the solidification.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A curing agent spraying machine tool for quickly hardening soil is characterized by comprising a spraying vehicle (2) and a transport vehicle (1);

the front end of the spraying vehicle (2) is provided with a traction hook (21), the tail of the transport vehicle (1) is provided with a hook hole (11), and the hook hole (11) is sleeved on the traction hook (21);

a power supply device (12) is arranged in the transport vehicle (1);

the spraying vehicle (2) comprises a vehicle frame (3), a heavy roller chain is arranged at the tail end of the vehicle frame (3), and a heavy roller (211) is arranged at the tail end of the heavy roller chain;

the frame (3) is provided with a power device (23), a plowing and stirring device, a mixture pipeline (231) and a metering and batching device;

the ploughing and stirring device comprises a rotary cultivator (241) and a power harrow (242) which are oppositely arranged, the rotary cultivator (241) is connected with the power harrow (242) through a transmission chain, and the power harrow (242) is connected with a power device (23);

the batching device comprises a mix stirring tank (224) and a plurality of storage tanks (223);

an outlet of each storage box (223) is connected with an inlet of a mixture stirring box (224), an outlet of each mixture stirring box (224) is connected with an inlet of a mixture pipeline (231), wherein each storage box (223) is provided with a metering pump (222), a booster pump (232) is arranged on each mixture pipeline (231), and each metering pump (222) and each booster pump (232) are connected with a power supply device (12);

a plurality of through holes are formed in the mixture pipeline (231), and each through hole is provided with a nozzle (233).

2. The curing agent spraying machine tool for the rapid hardening of the soil according to the claim 1, characterized in that the power supply device (12) is arranged in the transport vehicle (1), a plurality of material boxes (13) are arranged in the transport vehicle (1); the quantity of the material boxes (13) is the same as that of the material storage boxes (223), the output end of each material box (13) is connected with the inlet of one material storage box (223) through a transmission pipeline, and a pipeline valve is arranged on each transmission pipeline.

3. The implement of claim 1, wherein the heavy roller is a cylinder with a diameter of 300 mm.

4. The curing agent spraying machine for the rapid hardening of the soil according to claim 1, wherein the number of the nozzles (233) is 12, and the free ends of the nozzles (233) are all arranged on the front cross beam of the frame (3).

5. The implement of claim 1, wherein the rotary cultivator (241) comprises a rotary cultivator rotating shaft and a plurality of rotary cultivator blades (244) fitted around the rotary cultivator rotating shaft, each rotary cultivator blade (244) comprises 6 blades, and each blade has a length of 0.2 m.

6. The implement of claim 1, wherein the power harrow (242) comprises a power blade, the thickness of the power blade is 20 mm, and the length of the power blade is 0.2 m.

7. The implement of claim 1, which comprises 2 weight-bearing traction wheels, each of which has a diameter of 250 mm, and is disposed on both sides of the frame (3).

8. The implement of claim 1, wherein the mixer agitator tank (224) is provided with an agitator therein.

9. A road construction method is characterized in that: construction with the setting agent spraying tool for rapid hardening of soil according to any one of claims 1 to 8, comprising the steps of:

preparing a curing agent for rapid hardening of soil;

spraying the prepared curing agent for quickly hardening the soil onto the soil to be hardened;

ploughing and stirring the soil sprayed with the curing agent;

leveling, compacting, turning and stirring the soil.

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