CN110777608B

CN110777608B - Highway embankment over-wet filling material turning and baking device and use method thereof

Info

Publication number: CN110777608B
Application number: CN201911217762.6A
Authority: CN
Inventors: 邱祥; 陈长睿; 蒋煌斌; 罗震宇; 王卫锋; 林天朝; 黄振华; 郑萍
Original assignee: Changsha Road And Bridge Construction Co ltd; Changsha University of Science and Technology
Current assignee: Changsha Road And Bridge Construction Co ltd; Changsha University of Science and Technology
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2023-08-15
Anticipated expiration: 2039-12-03
Also published as: CN110777608A

Abstract

The invention discloses a road embankment over-wet filling turning and drying device and a use method thereof, wherein the device comprises a propulsion vehicle, a power system and a turning and drying device, the propulsion vehicle is mechanically connected with the turning and drying device, drives the turning and drying device to move and provides required electric energy for the turning and drying device; the power system is mechanically connected with the turning and drying device and provides turning power for the turning and drying device; the turning and drying device consists of an iron sheet box, a fan, an electric heating plate, a turning and stirring wheel and a plow blade, wherein the iron sheet box is hollow and has an open bottom, the fan is fixed at the top of the iron sheet box, the electric heating plate is horizontally arranged in the iron sheet box and positioned below the fan, and the turning and stirring wheel and the plow blade are both fixed at the bottom of the iron sheet box; the plow blades are provided in plurality and are positioned in front of the stirring wheel in the forward direction of the propulsion vehicle. The plow blade consists of a connecting rod, a first connecting screw cap, a first rotating shaft, a toenail connecting steel sheet, a toenail, a first baffle plate and a second baffle plate. Solves the problem that the existing embankment over-wet filler treatment method needs to introduce a hot air source from outside.

Description

Highway embankment over-wet filling material turning and baking device and use method thereof

Technical Field

The invention belongs to the field of highway engineering construction, and relates to a highway embankment over-wet filling material turning and drying device and a use method thereof.

Background

Along with the development of economic construction of China, a large number of highways are planned in the southern area. Because of excessive heat and moisture in the south, the water content of the embankment filler is high in highway engineering construction, so that the construction progress is greatly influenced, and huge economic loss is caused. In order to quickly reduce the water content of the over-wet filling material of the embankment, improve the filling speed of the embankment filling material and accelerate the engineering progress, the traditional method mostly adopts a method of airing and changing filling, the airing method needs to be carried out in sunlight, most of tropical or subtropical monsoon climates in the south area are wet and rainy, continuous rainfall can be met in the construction period, the turning effect is not ideal, a large amount of waste soil can be produced by the changing filling method, a large amount of changing filling soil needs to be transported in a soil taking field, and certain water and soil loss and environmental damage can be caused. In addition, engineering attempts have been made to treat embankment fillers in a manner that achieves the prescribed compaction requirements even though the embankment filler achieves the optimum water content. For example, adding lime and other curing materials into the embankment wet filler, stewing, adding broken stone and triple soil into the embankment filler, adopting an electroosmosis method to drain the water content of the embankment filler, adopting engineering machinery to directly apply strong wind to the embankment wet filler to control the water content of the embankment wet filler, or shoveling the embankment wet filler into a stirring box, adding and stirring the mixture, and then spraying the mixture through hot wind to achieve the aim of changing and filling. Or the over-wet filling material of the embankment is turned out and then is introduced into a hot air source, and the over-wet filling material is dried. The above methods can achieve the purpose of treating the over-wet filling of the embankment, but the following disadvantages still exist:

1. A great deal of time is needed for airing and stewing, the airing and stewing are easily affected by weather, and the construction period is long;

2. when the electroosmosis method is used for treating the embankment filler moisture, safety risks such as electric leakage and electric shock exist in the construction process;

3. the construction workload of adding crushed soil and combined soil is large, and the construction cost is high;

4. the over-wet filling material of the embankment is turned out and then is introduced into a hot air source, the over-wet filling material is dried, the hot air source is required to be introduced from the outside, and the connection stability of the traction mechanism and the turning and drying device is not high;

5. the existing treatment mode is shallow in treatment depth, the working depth is difficult to control freely in treatment engineering, and deep over-wet filler is difficult to treat, so that the optimal water content distribution in a certain depth range of a whole road section is uneven.

Disclosure of Invention

The invention aims to provide a road embankment over-wet filling material turning and drying device, which solves the problems that the existing construction method is long in construction time, large in workload, high in manufacturing cost, and has safety risks such as electric leakage and electric shock, the method for introducing hot air source to dry over-wet filling material after the embankment over-wet filling material is turned out needs to introduce the hot air source from the outside, the connection stability of a traction mechanism and the turning and drying device is poor, and the existing treatment method is difficult to freely control the working depth in the treatment engineering, so that the optimal water content distribution depth of the whole road section is uneven.

Another object of the embodiment of the invention is to provide a method for using the road embankment over-wet filling overturning and drying device.

The technical scheme adopted by the embodiment of the invention is that the road embankment over-wet filling turning and drying device comprises a propulsion vehicle, a power system and a turning and drying device, wherein the propulsion vehicle is mechanically connected with the turning and drying device to drive the turning and drying device to move and provide required electric energy for the turning and drying device; the power system is mechanically connected with the turning and drying device and provides turning power for the turning and drying device;

the turning and drying device consists of an iron sheet box, a fan, an electric heating plate, a turning and stirring wheel and a plow blade, wherein the iron sheet box is hollow and the bottom of the iron sheet box is open, the fan is fixed at the top of the iron sheet box, the electric heating plate is horizontally arranged in the iron sheet box and positioned below the fan, and the turning and stirring wheel and the plow blade are both fixed at the bottom of the iron sheet box; the plow blades are provided in plurality and are positioned in front of the stirring wheel in the forward direction of the propulsion vehicle.

Further, the plow blade comprises a connecting rod, a first connecting screw cap, a first rotating shaft, a toenail connecting steel sheet, a toenail, a first baffle plate and a second baffle plate, wherein the first connecting screw cap is provided with two first connecting screw caps and is respectively arranged at the left end and the right end of the bottom of the connecting rod, the first rotating shaft is arranged between the two first connecting screw caps, the two ends of the first rotating shaft are respectively inserted into the first connecting screw caps, the toenail is fixedly connected with the first rotating shaft through the toenail connecting steel sheet, and the first baffle plate and the second baffle plate are positioned at the two sides of the toenail connecting steel sheet and form a certain included angle to be fixed on the surface of the first connecting screw cap.

Further, the plough blade is fixedly connected to the bottom of the iron sheet box through a reversing device, and the reversing device consists of a second connecting screw cap, a second rotating shaft, a plough blade connecting steel sheet, a fan-shaped movable block, a third baffle, a fourth baffle, a first bottom plate and a second bottom plate; the two second connecting nuts are respectively arranged at the bottom of the iron case; the second rotating shaft is horizontally and transversely arranged between the two second connecting nuts, two ends of the second rotating shaft are respectively inserted into the second connecting nuts, and the second rotating shaft is fixedly connected with the top of the plow blade, namely the top of the connecting rod through the plow blade connecting steel sheet; the third baffle and the fourth baffle are positioned on two sides of the top of the connecting rod and form a certain included angle to be fixed on the surface of the second connecting nut, the third baffle is positioned on the rear side of the connecting rod, the fourth baffle is positioned on the front side of the connecting rod, the first bottom plate is positioned on the left side of the connecting rod and fixedly connected with the bottoms of the third baffle and the fourth baffle, the second bottom plate is positioned on the right side of the connecting rod and fixedly connected with the bottoms of the third baffle and the fourth baffle, the fan-shaped movable block is arranged on the first bottom plate and the second bottom plate and positioned between the plow blade connecting steel sheet and the baffle far away from the plow blade connecting steel sheet, and the baffle far away from the plow blade connecting steel sheet is the third baffle or the fourth baffle.

Further, the toe board is parallel to the ground in the initial state, and the toe board connecting steel sheet is perpendicular to the toe board;

the first baffle plate and the second baffle plate are fixed on the surfaces of the two first connecting nuts at an included angle of 60 degrees, the first baffle plate is positioned on one side of the toe board connecting steel sheet, which is close to the front part of the toe board, the second baffle plate is positioned on one side of the toe board connecting steel sheet, which is close to the rear part of the toe board, the first baffle plate and the vertical surface are arranged on the surfaces of the two first connecting nuts at an included angle of-30 degrees, and the second baffle plate and the vertical surface are arranged on the surfaces of the two first connecting nuts at an included angle of 30 degrees;

the connecting rod is positioned at the fourth baffle plate in the initial state, and the fan-shaped movable block is positioned between the plow blade connecting steel sheet and the third baffle plate in the initial state;

the third baffle plate and the fourth baffle plate are fixed on the surfaces of the two second connecting nuts at an included angle of 65 degrees, the third baffle plate and the vertical surface are fixed on the surfaces of the two second connecting nuts at an included angle of 45 degrees, and the fourth baffle plate and the vertical surface are fixed on the surfaces of the two second connecting nuts at an included angle of-20 degrees.

Further, the number of the fans is at least two and the fans are uniformly arranged at the top of the iron case;

the number of the electric heating plates is at least one, and the electric heating plates are vertically and sequentially arranged below the fan at intervals;

The number of the stirring wheels is at least one and the stirring wheels are uniformly arranged at the bottom of the iron case;

the turning wheel consists of a rotating shaft and a plurality of uniformly distributed 7-shaped steel sheets, wherein each four 7-shaped steel sheets are divided into a group from left to right on the rotating shaft, and the 7-shaped steel sheets of each group are arranged on the rotating shaft according to 0 degree, 90 degrees, 180 degrees and 270 degrees;

the plow blade and each group of 7-shaped steel sheets arranged on the rotating shaft according to 0 degree, 90 degrees, 180 degrees and 270 degrees on the turning wheel are arranged at intervals.

Further, the power system consists of a gearbox and a motor, the motor is electrically connected with a power supply on a propulsion vehicle, the output end of the motor is mechanically connected with the input end of the gearbox, and the output end of the gearbox is mechanically connected with a rotating shaft of the stirring wheel;

the electric heating plate and the fan are both provided with power regulating switches, and the motor is provided with a motor speed regulator;

the turning and drying device is in lifting connection with the propelling vehicle through a lifting device; the lifting device consists of a convex steel plate, a lifting auxiliary mechanism, a hydraulic jack and a hydraulic control device, wherein the hydraulic control device is connected with the hydraulic jack and used for adjusting the stroke of the hydraulic jack; the lifting auxiliary mechanism is provided with 1-3 lifting grooves with open tops and bottoms, and the number, the internal shape and the internal size of the lifting grooves are consistent with those of the convex-shaped steel plates; the convex steel plate is fixedly connected with the iron sheet box, is embedded into the lifting groove from top or bottom and can vertically move along the lifting groove; the hydraulic jack is arranged at the bottom of the lifting groove and is fixedly connected with the convex steel plate positioned in the lifting groove;

The lifting auxiliary mechanism is provided with a high-strength bolt mounting hole positioned at the back of the lifting groove, and is fixedly connected with the propulsion vehicle through bolts through the high-strength bolt mounting hole;

the propulsion vehicle is internally provided with a vehicle hot air source, and a hot air outlet and a water content tester are arranged at the middle position of the bottom of the propulsion vehicle;

the side wall of the iron sheet box, which is close to the propulsion vehicle, and the bottom of the side wall opposite to the side wall are provided with iron sheet box openings.

Further, the convex steel plate is fixedly connected with the iron sheet box through a connecting device, the connecting device comprises 1-3 rectangular frames vertically fixed on the iron sheet box in a longitudinal direction, rectangular steel pipes forming at least two vector triangles with the rectangular frames are fixed at diagonal positions of each rectangular frame, X-shaped steel pipes are arranged between every two adjacent rectangular frames which are parallel to each other and are arranged at a certain interval, and four corners of each X-shaped steel pipe are correspondingly connected with upper midpoints and lower midpoints of every two adjacent rectangular frames one by one; one side of each rectangular frame far away from the iron case is fixedly provided with a convex steel plate, and the bottom surface of the convex steel plate faces to the propelling vehicle;

the rectangular frames are fixed on the iron skin box through the first concave steel grooves and the second concave steel grooves, and the first concave steel grooves and the second concave steel grooves are mutually perpendicular to the rectangular frames; the first concave steel groove is horizontally fixed on the side wall of the iron box, which is close to the propulsion vehicle, at a position which is 1/3 of the height from the top of the iron box, and the second concave steel groove is horizontally fixed on the side wall of the iron box, which is 2/3 of the height from the top of the iron box;

The turning and drying device and the power system are both fixed on a steel pipe support frame, the steel pipe support frame consists of a first square steel pipe, a second square steel pipe, a third square steel pipe, a fourth square steel pipe, a fifth square steel pipe and a sixth square steel pipe, the fifth square steel pipe and the sixth square steel pipe are parallel to each other, the first square steel pipe, the second square steel pipe, the third square steel pipe and the fourth square steel pipe are parallel to each other, the first square steel pipe and the second square steel pipe are horizontally fixed at one end of the fifth square steel pipe and one end of the sixth square steel pipe, the third square steel pipe and the fourth square steel pipe are horizontally fixed at the other end of the fifth square steel pipe and the other end of the sixth square steel pipe, the first square steel pipe, the second square steel pipe, the third square steel pipe and the fourth square steel pipe are all perpendicular to the fifth square steel pipe and the sixth square steel pipe, the first square steel pipe and the second square steel pipe are arranged at a certain interval, and the third square steel pipe and the fourth square steel pipe are adjacently and are attached;

the motor is arranged at one end of the first concave steel groove, which is close to the gearbox, and the plow blade is fixed at the bottom of the third square steel pipe through the reversing device, namely, two second connecting nuts are arranged at the bottom of the third square steel pipe.

The other technical scheme adopted by the embodiment of the invention is that the using method of the road embankment over-wet filling turning and baking device is carried out according to the following steps:

step S1: determining and controlling the water content: the optimal water content of the embankment filler is measured by adopting a compaction experiment; the accumulated plastic deformation of the embankment filler with different water contents under the dynamic load loading condition is tested by adopting a dynamic triaxial experiment, so that the optimal water content of the embankment filler with high liquid limit under the dynamic load is obtained; taking the average value +/-2% of the optimal water content obtained by the two experiments as the control water content of the embankment filler;

s2, determining construction parameters: selecting the working depth of the turning and drying device according to the filling thickness of the embankment, and then adjusting the stroke of a hydraulic jack in the lifting device through the hydraulic control device to ensure that the working depth of the turning and drying device meets the requirement; selecting a test road section in a region to be constructed, determining the running speed of the embankment during the over-wet filling turning and baking construction and the output power of a motor, a fan and a heating plate, namely determining construction parameters;

s3, embankment construction: and (3) according to the construction parameters determined in the step (S2), turning over and baking the road embankment over-wet filler according to the sections, measuring the actual water content of the construction road section over-wet filler in real time by a water content tester at the bottom of the propulsion vehicle, comparing the actual water content with the control water content, and performing secondary construction on the road section with the water content greater than the control water content after treatment.

Further, the test confining pressure of the step S1 dynamic triaxial test is 10kPa, and the axial stress ratio is 1:0.5, dynamic stress amplitude is 50kPa;

step S2, determining that the construction parameters are to preliminarily set a smaller driving speed and the output power of a motor, a fan and a heating plate, performing a overturn-baking test on a test road section at a determined working depth, then adjusting the driving speed according to the readings of a water content tester at the bottom of a propulsion vehicle, and adjusting the output power of the motor, the fan and the electric heating plate through power adjusting switches on the electric heating plate and the fan and a motor speed regulator until the water content of the treated soil body reaches the requirement of controlling the water content;

and step S3, performing secondary construction on the road section with the water content greater than the controlled water content after treatment, namely changing the working direction of the plow blade and controlling the rotation direction of the stirring wheel by moving the fan-shaped movable block to match with the forward and backward movement of the propelling vehicle on the original travelling route of the propelling vehicle, and performing reciprocating stirring and drying on the over-wet filler until the controlled water content is achieved.

Further, the specific process of adjusting the running speed according to the reading of the water content tester at the bottom of the propulsion vehicle and the output power of the motor, the fan and the electric hot plate is as follows: if the real-time water content of the processed embankment wetting filler is higher than the control water content, the output power of the fan and the electric heating plate is increased to continuously advance for a certain distance at the previous driving speed to process the embankment wetting filler, then the real-time water content of the embankment wetting filler processed for the second time is measured, if the measured real-time water content is still too high, the output power of the fan and the electric heating plate is continuously increased to process the embankment wetting filler and the real-time water content of the processed embankment wetting filler is measured until the measured real-time water content is stabilized at the control water content; when the power of the fan and the electric heating plate is at the highest, the measured real-time water content is still too high, and then the vehicle hot air source is turned on, so that the heating power is continuously improved; if the measured real-time water content is lower than the control water content, the vehicle speed is increased so that the water content value is stabilized at the control water content.

The embodiment of the invention has the beneficial effects that:

(1) According to the embodiment of the invention, the lifting groove of the lifting device is provided with a plurality of rows of screw holes, stable connection between the lifting device and the propelling vehicle can be realized through high-strength bolts, the hydraulic control device is arranged in a vehicle cab, a driver can change the travel of the hydraulic jack in the lifting device through the hydraulic control device according to the actual turning depth requirement to adjust the working depth of the turning device, the problem that the working depth is difficult to freely control in the processing engineering in the existing construction method so that the optimal water content distribution depth of the whole road section is uneven is solved, the optimal water content of the whole road section is ensured to be uniformly distributed at the construction design depth, the excessively wet filler is processed in place once in the depth range, the excessively wet filler in the depth range can be directly paved and compacted as long as the water content in the depth range reaches the optimal water content, the construction efficiency is improved, and the sufficient filler is filled in the embankment. The connecting device is provided with a plurality of vector triangles so as to ensure the connection stability of the power system and the turning and drying device and the connection stability of the turning and drying device and the propelling vehicle, and the embedded structure adopted between the convex steel plate embedded and the upgrading groove enables the lifting groove to limit the convex steel plate to move up and down only, and meanwhile, the fan and the electric heating plate are arranged to output heat energy to dry the over-wet filling, so that the problem that the method for introducing hot air source to dry the over-wet filling after turning over the over-wet filling of the embankment needs to introduce the hot air source from outside and the connecting stability of the traction mechanism and the turning and drying device is poor is solved.

(2) The plow blade in the embodiment of the invention can loosen the high liquid limit soil which is generated from self-weight consolidation settlement in a natural state, turn out the deep over-wet filler, and dry the over-wet filler in the first time by matching with the turning and drying device, and can reduce the loss of the turning and stirring wheel blade. The power system can provide larger working torque for the stirring wheel, so that the stirring wheel can rotate anticlockwise (namely, the rotation direction is opposite to the advancing direction of the device), and the soil crushing efficiency is improved; the turning and baking device can process the construction road section back and forth under the control of the propelling vehicle, and construction quality is improved. The iron sheet case is hollow, the lower part is in an opening state, strong hot air can be guaranteed not to run off, drying efficiency is improved, holes with the height of 10cm are reserved in the bottoms of the front side wall and the rear side wall of the iron sheet case, the efficiency of filling materials in and out of the case body of the iron sheet case can be improved, the construction efficiency is integrally improved, the construction time is shortened, broken stone and triple soil are not required to be transported in the construction process, extra manpower and material resources are not required to be arranged for removing wet filling materials, safety risks such as electric leakage and electric shock are avoided, and the problems that the construction time is long, the workload is large and the manufacturing cost is high when the embankment filling materials are dried by adopting the method of airing and stewing materials at present are solved.

(3) When the vehicle advances, the fan-shaped movement speed is increased, so that the connecting rod drives the toe board to move clockwise to be close to the third baffle, an included angle of 70 degrees is formed between the plow edge and the horizontal plane, soil is piled on the front part of the toe board, the convex-shaped connecting sheet is contacted with the second baffle, the included angle between the front part of the toe board and the vertical plane is 60 degrees, and soil turning operation is performed; when the vehicle backs up, move fan-shaped activity soon and make the connecting rod drive the toe board anticlockwise to move and be close to the fourth baffle for the reverse 45 contained angle that forms of plow blade and horizontal plane, at this moment, plow blade and 7 font steel sheet group interval setting on the wheel that turns over, can pile up the soil body on the toe board rear portion simultaneously and lead to protruding font connection piece to contact with first baffle, makes the toe board rear portion reverse and vertical face's contained angle 60 carry out the soil turning operation. The forward shovel and the reverse shovel of the plow blade can be converted by the rotation of the rotating shaft and the limitation of the baffle, and the forward and reverse rotation of the turning and stirring wheel can be matched, so that the secondary turning shovel and drying on the original route can be realized, the reciprocating construction is realized, the construction route is greatly simplified, the working efficiency is improved, and the machine is suitable for various complex construction sections.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a highway embankment over-wet filling turning and baking device according to an embodiment of the invention.

Fig. 2 is a schematic structural view of a connection device in a road embankment over-wet filling turning and baking device according to an embodiment of the invention.

Fig. 3 is a schematic structural view of an embodiment of a road embankment over-wet filling turning and baking device according to an embodiment of the present invention.

Fig. 4 is a bottom view of a highway embankment over-wet filling turning and baking device according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a stirring wheel in a road embankment over-wet filler stirring and baking device according to an embodiment of the invention.

Fig. 6 is a schematic diagram of an electric heating plate structure in a road embankment over-wet filling turning and drying device according to an embodiment of the invention.

FIG. 7 is a diagram showing the construction of the interior of the leather trunk in the over-wet filling turning and baking device for the road embankment according to the present invention.

Fig. 8 is a schematic view of the front opening of the leather trunk in the over-wet filling turning and baking device for the road embankment according to the embodiment of the invention.

Fig. 9 is a schematic view of the structure of a plow blade in a road embankment over-wet filling turning and baking device according to an embodiment of the invention.

Fig. 10 is an enlarged view of a part of the lower structure of the plow blade in the road embankment over-wet filling turning and baking device according to the embodiment of the present invention.

Fig. 11 is a partial enlarged view of the upper structure of the plow blade in the road embankment over-wet filling turning and baking device according to the embodiment of the invention.

The vehicle includes, in the drawings, 1 a propulsion vehicle, 2 a lifting device, 3 a connecting device, 4 a power system, 5 a turner, 6 a vehicle hot air source, 7 a water content tester, 8 a first square steel pipe, 9 a second square steel pipe, 10 a third square steel pipe, 11 a fourth square steel pipe, 12 a fifth square steel pipe, 13 a sixth square steel pipe, 14 a first concave steel groove, 15 a second concave steel groove, 16 a first rectangular frame, 17 a second rectangular frame, 18 a first convex steel plate, 19 a second convex steel plate, 20 a X-shaped steel pipe, 21 a iron box, 22 a fan, 23 a electric heating plate, 24 a turner, 25 a plow blade, 26 a gearbox, 27 a chain, 28 a motor, 29 a belt, 30 a lifting auxiliary mechanism, 31 a hydraulic jack, 32 a hydraulic control device, 33.7 a fin, 35 a steel sheet, 35 a iron box opening, 36 a connecting rod, 37 a first connecting flange, 38, 39 a second flange, 40 a fan-shaped steel plate, 48 a second flange, 48 a flange, and a flange, 48.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The road embankment over-wet filling turning and drying device comprises a propulsion vehicle 1, a power system 4 and a turning and drying device 5, wherein the propulsion vehicle 1 is mechanically connected with the turning and drying device 5 to drive the turning and drying device 5 to move and provide required electric energy for the turning and drying device 5; the power system 4 is mechanically connected with the turning and drying device 5 to provide turning power for the turning and drying device 5. The turning and baking device 5 consists of an iron sheet box 21, a fan 22, an electric heating plate 23, a turning and stirring wheel 24 and a plow blade 25, wherein the iron sheet box 21 is hollow and the bottom of the iron sheet box is open; the fan 22 is fixed at the top of the iron case 21, and the electric heating plate 23 is horizontally arranged in the iron case 21 and is positioned at a position 0.2-0.3 m below the fan 22; the stirring wheel 24 is horizontally arranged at the bottom of the iron box 21 and is parallel to the side wall of the iron box 21 close to the propulsion vehicle 1; the plow blade 25 is fixed at the bottom of one side of the iron case 21 far away from the propulsion vehicle 1 and in front of the turning wheel 24 (taking the forward direction of the propulsion vehicle 1 as a reference), and the angle between the plow blade 25 and the horizontal direction is 70 degrees, and the number of fans 22 is at least two and is uniformly arranged at the top of the iron case 21.

The power system 4 is composed of a gearbox 26 and a motor 28, the motor 28 and the gearbox 26 are driven by a belt 29, the gearbox 26 and the stirring wheel 24 are driven by a chain 27 to provide power for the stirring wheel 24, and the stirring wheel 24 is driven to rotate in the direction opposite to the advancing direction of the propulsion vehicle 1 so as to break up the filler. As shown in fig. 5, the stirring wheel 24 is composed of a rotating shaft and a plurality of uniformly distributed 7-shaped steel sheets 33, wherein each four 7-shaped steel sheets 33 from left to right on the rotating shaft are divided into a group, and each group of 7-shaped steel sheets 33 is arranged on the rotating shaft according to 0 degree, 90 degree, 180 degree and 270 degree; the spacing between each 7-shaped steel sheet 33 is 15cm, the spacing between each group is 15cm, the first group of 7-shaped steel sheets 33 is 17.5cm far from the leftmost end of the stirring wheel 24, the last group of 7-shaped steel sheets 33 is 17.5cm far from the rightmost end of the stirring wheel 24, the cutter head directions of the 7-shaped steel sheets 33 installed according to 0 degree and 90 degrees are rightward, and the cutter head directions of the 7-shaped steel sheets 33 installed according to 180 degrees and 270 degrees are leftward. The number of the stirring wheels 24 is at least one, and when the number is greater than 1, the stirring wheels 24 are arranged in parallel with each other and uniformly at the bottom of the iron box 21.

As shown in fig. 6, the electric heating plate 23 is formed by uniformly distributing dry-burning type fin heating pipes 34, power regulating switches are arranged on the electric heating plate 23 and the fan 22, the power regulating range of the electric heating plate 23 is 0-5000 w, the power regulating range of the fan 22 is 0-400 w, a motor speed regulator is arranged on the motor 28, and the power regulating range of the motor 28 is 60-180 w.

As shown in fig. 9 to 10, the plow blade 25 is composed of a connecting rod 36, a first connecting nut 37, a first rotating shaft 38, a toenail connecting steel sheet 39, a toenail 40, a first baffle 41 and a second baffle 42, the connecting rod 36 is a rectangular steel bar, and the first connecting nut 37 is provided with two connecting nuts and is respectively arranged at the left end and the right end of the bottom of the connecting rod 36; the first rotating shaft 38 is installed between the two first connecting nuts 37 and both ends thereof are respectively inserted into one first connecting nut 37, the toe plate 40 is fixedly connected with the first rotating shaft 38 through the toe plate connecting steel sheet 39, and the toe plate connecting steel sheet 39 is mutually perpendicular to the toe plate 40; the first baffle 41 and the second baffle 42 are respectively positioned at both sides of the toe board connecting steel sheet 39 at an included angle of 30 degrees with respect to the vertical plane and fixed to the surface of the first connecting nut 37, i.e., the included angle between the first baffle 41 and the second baffle 42 is 60 degrees. And a first baffle 41 is located at a side of the toenail connection steel piece 39 near the front of the toenail 40 and a second baffle 42 is located at a side of the toenail connection steel piece 39 near the rear of the toenail 40. When the propulsion vehicle 1 advances, soil is deposited on the front of the toe board 40, and the soil acts on the front of the toe board 40, so that the toe board connecting steel sheet 39 rotates clockwise by 30 ° to the second barrier 42, and the soil turning operation is performed.

As shown in fig. 9 and 11, the plow blade 25 is fixedly connected to the bottom of the iron sheet case 21 through a reversing device, and the reversing device is composed of a second connecting nut 45, a second rotating shaft 46, a plow blade connecting steel sheet 47, a fan-shaped movable block 48, a third baffle 49, a fourth baffle 50, a first bottom plate 51 and a second bottom plate 52. The second connecting nuts 45 are arranged at two and are respectively arranged at the bottom of the iron case 21, the second rotating shaft 46 is horizontally and transversely arranged between the two second connecting nuts 45, two ends of the second rotating shaft 46 are respectively inserted into the second connecting nuts 45, and the second rotating shaft 46 is fixedly connected with the top of the plow blade 25, namely the top of the connecting rod 36 through the plow blade connecting steel sheet 47. The third baffle plate 49 and the fourth baffle plate 50 are positioned at both sides of the top of the connecting rod 36 and fixed to the surfaces of the two second coupling nuts 45 at an included angle of 65 °, specifically, the third baffle plate 49 is fixed to the surfaces of the two second coupling nuts 45 at an included angle of 45 ° to the vertical plane, the fourth baffle plate 50 is fixed to the surfaces of the two second coupling nuts 45 at an included angle of-20 ° to the vertical plane, and the third baffle plate 49 is positioned at the rear side of the top of the connecting rod 36 (the side near the rear of the toe plate 40), and the fourth baffle plate 50 is positioned at the front side of the top of the connecting rod 36 (the side near the front of the toe plate 40). The first bottom plate 51 is located on the left side of the top of the connecting rod 36 (based on the front side thereof, i.e., the side near the front of the toe plate 40) and fixedly connected to the bottoms of the third and fourth baffles 49 and 50, and the second bottom plate 52 is located on the right side of the top of the connecting rod 36 (based on the front side thereof, i.e., the side near the front of the toe plate 40) and fixedly connected to the bottoms of the third and fourth baffles 49 and 50, and the fan-shaped movable block 48 is disposed on the first and second bottom plates 51 and 52 between the blade connecting steel sheet 47 and the baffle plate away from the blade connecting steel sheet 47, which is the third or fourth baffle plate 49 or 50. When the vehicle 1 is propelled forward, the connecting rod 36 is attached to the fourth baffle 50, and the fan-shaped movable block 48 is located between the plow blade connecting steel sheet 47 and the third baffle 49, so as to support and fix the connecting rod 36, and make the connecting rod 36 form an included angle of 70 degrees with the horizontal plane to perform soil turning work. When the vehicle 1 is propelled to reverse, the fan-shaped movable block 48 is manually taken out and continuously moves forward for 0.5 m, the soil body in front acts on the connecting rod 36 to enable the connecting rod 36 to rotate 65 degrees to the third baffle 49 clockwise, and then the fan-shaped movable block 48 is arranged between the plow blade connecting steel sheet 47 and the fourth baffle 50 and is used for supporting the fixed connecting rod 36, so that the connecting rod 36 forms an included angle of 45 degrees with the horizontal plane to carry out reverse soil turning work. At this time, soil is deposited on the rear portion of the toe board 40, and the soil acts on the rear portion of the toe board 40, so that the toe board connecting steel sheet 39 is rotated counterclockwise by 30 ° to the first barrier 41, and the soil turning work is performed. When the forward operation is needed again after the reverse operation of the propulsion vehicle 1 is completed, the fan-shaped movable block 48 is taken out, the reverse operation is continued for 0.5 m, the rear soil body acts on the connecting rod 36 to enable the connecting rod 36 to rotate 65 degrees anticlockwise to the fourth baffle 50, the fan-shaped movable block 48 is placed between the plow blade connecting steel sheet 47 and the third baffle 49, and then the vehicle is started to advance. The initial position of the toe plate 40 is a horizontal position, and the initial position of the sector-shaped movable block 48 is between the plow blade connecting steel sheet 47 and the third fence 49. The distance between the first bottom plate 51 and the second bottom plate 52 is greater than or equal to the width of the connecting rod 36, so that the connecting rod 36 can freely rotate around the second rotation axis 46 between the first baffle 41 and the second baffle 42, and the length of the fan-shaped movable block 48 is greater than the distance between the first bottom plate 51 and the second bottom plate 52.

The plow blades 25 are arranged at intervals with each group of 7-shaped steel sheets 33 on the stirring wheel 24, the 7-shaped steel sheets 33 on the stirring wheel 24 are provided with three groups, the occupied length of each group of 7-shaped steel sheets 33 on the rotating shaft of the stirring wheel 24 is 45cm, the interval between each group is 15cm, the width of the plow blades 25 is less than or equal to 5cm, 4 plow blades 25 are altogether, the first plow blade 25 is 10cm away from the left side of the stirring and baking device 5, the fourth plow blade 25 is 10cm away from the right side of the stirring and baking device 5, and the distance between every two adjacent plow blades 25 is 60cm away, so that the plow blades 25 and the stirring wheel 24 do not interfere with each other, and the distance between the plow blades 25 is calculated from the center line.

The turning and drying device 5 is connected with the propelling vehicle 1 in a lifting way through the lifting device 2, so that the height of the turning and drying device 5 is adjustable. As shown in fig. 3, the lifting device 2 is composed of a zigzag steel plate, a lifting auxiliary mechanism 30, a hydraulic jack 31, and a hydraulic control device 32. The convex-shaped steel plates are fixedly connected with the iron leather case 21 through the connecting device 3, lifting grooves with the top and the bottom in an open state are arranged on the lifting auxiliary mechanism 30, the inner shape and the size of the lifting grooves are consistent with those of the convex-shaped steel plates, and the number of the lifting grooves and the number of the convex-shaped steel plates are 1-3; the male-shaped steel plates can be embedded into the lifting groove from the top or from the bottom and can vertically move along the lifting groove, and the embodiment is provided with two male-shaped steel plates, namely a first male-shaped steel plate 18 and a second male-shaped steel plate 19. The lifting auxiliary mechanism 30 is fixed on the propulsion vehicle 1 through the high-strength bolt mounting holes on the back of the lifting groove. The hydraulic jack 31 is installed at the bottom of the lifting groove and is fixedly connected with the convex steel plate positioned in the lifting groove, the hydraulic control device 32 is installed in a cab for propelling the vehicle 1, a driver in the cab adjusts the stroke of the hydraulic jack 31 through the hydraulic control device 32 (the connection between the hydraulic control device 32 and the hydraulic jack 31 is well known in the art and is not specifically described here), so that the convex steel plate moves up and down in the lifting groove, the height of the turning and baking device 5 is controlled, the working depth of the turning and baking device 5 is adjusted, and the adjusting range of the working depth is 0-0.6 meter.

The shape and the connection structure of the high-strength bolt are basically the same as those of a common bolt, and the main differences of the high-strength bolt and the common bolt are as follows: the common bolt connection relies on the bearing of the rod body and shearing resistance to transfer shearing force, and the pretension force generated by the bolt when the nut is twisted is small, so that the influence is not considered; the working principle of high-strength bolt connection is that a large pretension force is applied to the bolt intentionally, so that extrusion force is generated between contact surfaces of connected pieces, so that a large friction force exists in the direction perpendicular to a screw rod, and the shearing force of connection is transmitted by virtue of the friction force. The pretension of the high-strength bolt is realized by twisting a nut, and a torque method and a corner method are generally adopted for the common high-strength bolt. The torsion shear type high-strength bolt adopts the torsion breaking bolt tail to control the pretension.

As shown in fig. 2, the connecting device 3 comprises a first rectangular frame 16 and a second rectangular frame 17 vertically fixed on a leather case 21 in a longitudinal direction, the first rectangular frame 16 and the second rectangular frame 17 are parallel to each other and are arranged at a certain interval, an X-shaped steel pipe 20 for fixedly supporting the first rectangular frame 16 and the second rectangular frame 17 is arranged between the first rectangular frame 16 and the second rectangular frame 17, and four corners of the X-shaped steel pipe 20 are connected with an upper middle point and a lower middle point of the first rectangular frame 16 and an upper middle point and a lower middle point of the second rectangular frame 17 in a one-to-one correspondence manner. In order to improve the overall strength and stability of the connecting device 3, a rectangular steel pipe is respectively fixed on at least one diagonal line of the first rectangular frame 16 and the second rectangular frame 17, and forms at least two vector triangles together with the first rectangular frame 16 and the second rectangular frame 17. The first zigzag steel plate 18 is fixed on the side of the first rectangular frame 16 away from the leather trunk 21, the second zigzag steel plate 19 is fixed on the side of the second rectangular frame 17 away from the leather trunk 21, and the larger surfaces of the first zigzag steel plate 18 and the second zigzag steel plate 19 are both directed toward the propulsion vehicle 1. The distance between the first rectangular frame 16 and the second rectangular frame 17 and the side of the iron case 21 close to the first rectangular frame is equal, and the distance is 0.6m in the water example, and can be set according to actual engineering conditions.

In addition, the first rectangular frame 16 and the second rectangular frame 17 are fixed on the leather case 21 through the first concave steel groove 14 and the second concave steel groove 15, the first concave steel groove 14 and the second concave steel groove 15 are transversely fixed on the leather case 21, and the first concave steel groove 14 and the second concave steel groove 15 are mutually perpendicular to the first rectangular frame 16 and the second rectangular frame 17. Specifically, the first concave steel channel 14 is horizontally fixed to the side wall of the luggage case 21 near the propulsion vehicle 1 at a height of 1/3 from the top thereof, and the second concave steel channel 15 is horizontally fixed to the side wall of the luggage case 21 at a height of 2/3 from the top thereof.

To ensure the stability of the turning and baking device 5, the iron case 21 and the gearbox 26 can be fixed on a steel pipe support frame, and the plow blade 25 can be fixed on the side of the bottom of the steel pipe support frame far away from the propulsion vehicle 1. Specifically, the steel pipe support frame is composed of a first square steel pipe 8, a second square steel pipe 9, a third square steel pipe 10, a fourth square steel pipe 11, a fifth square steel pipe 12 and a sixth square steel pipe 13, the specifications of the fifth square steel pipe 12 and the sixth square steel pipe 13 are the same and parallel, the specifications of the first square steel pipe 8, the second square steel pipe 9, the third square steel pipe 10 and the fourth square steel pipe 11 are the same and parallel, the first square steel pipe 8 and the second square steel pipe 9 are horizontally fixed at one end of the fifth square steel pipe 12 and the sixth square steel pipe 13 at a certain interval, the third square steel pipe 10 and the fourth square steel pipe 11 are horizontally fixed at the other ends of the fifth square steel pipe 12 and the sixth square steel pipe 13, the first square steel pipe 8, the second square steel pipe 9, the third square steel pipe 10 and the fourth square steel pipe 11 are perpendicular to the fifth square steel pipe 12 and the sixth square steel pipe 13, more specifically, the first square steel pipe 8 and the second square steel pipe 9 are fixed at the inner sides of the fifth square steel pipe 12 and the sixth square steel pipe 13, and the third square steel pipe 11 are fixed at the surfaces of the fifth square steel pipe 12 and the sixth square steel pipe 13 and the third square steel pipe 13. The first square steel pipe 8 and the second square steel pipe 9 are arranged at a certain interval, and the third square steel pipe 10 and the fourth square steel pipe 11 are adjacently and adjacently bonded. The iron skin box 21 is vertically fixed on a subframe formed by the second square steel pipe 9, the fifth square steel pipe 12 and the sixth square steel pipe 13, the gearbox 26 is fixed on a subframe formed by the first square steel pipe 8, the second square steel pipe 9 and the fifth square steel pipe 12, and the motor 28 is arranged at one end of the first concave steel groove 14 close to the gearbox 26. In this embodiment, the first square steel tube 8 and the second square steel tube 9 are spaced by 0.4m, the gearbox 26 and the rectangular frame are required to be installed in the space of 0.4m, the installation of the gearbox 26 is unstable when the distance is lower than 0.4m, and the bending moment of the fifth square steel tube 12, the sixth square steel tube 13, the first rectangular frame 16 and the second rectangular frame 17 is increased when the distance is greater than 0.4m, and the distance is matched with the size of the gearbox 26, and can be adjusted according to the size of the actual gearbox 26. The plow blades 25 are all fixed at the bottom of the third-party steel pipe 10 through reversing devices corresponding to the plow blades, namely, two second connecting nuts 45 of each reversing device are installed at the bottom of the third-party steel pipe 10. The first rectangular frame 16 and the second rectangular frame 17 are vertically installed between the first square steel pipe 8 and the second square steel pipe 9, and the bottom edges thereof are parallel to the fifth square steel pipe 12. The lengths of the first square steel pipe 8, the second square steel pipe 9, the third square steel pipe 10, the fourth square steel pipe 11, the first concave steel groove 14 and the second concave steel groove 15 are equal to the length of the leather trunk 21. The distance between the outer side wall of the fifth square steel tube 12 and the outer side wall of the sixth square steel tube 13 is equal to the length of the leather trunk 21.

The propelling vehicle 1 is a tractor, and is connected with the lifting device 2 through a high-strength bolt, and a vehicle hot air source 6 (an air conditioning system in the propelling vehicle 1) is arranged in the propelling vehicle, and when the maximum heating power of the turning and drying device 5 cannot reach the dehumidification effect, the vehicle hot air source 6 is turned on to assist in drying. The middle position of the bottom of the device is provided with a hot air outlet and a water content tester 7, and specifically, the water content tester 7 can select a water content tester with a water content reading display function so as to measure the water content of the filler for convenience of construction.

The iron case 21 is a cuboid structure, as shown in fig. 7, the inside of the iron case is formed by a rectangular frame formed by side beams 43, corner posts 44 are vertically fixed at four corners of the rectangular frame to form a cuboid frame, iron sheets are wrapped outside the cuboid frame, and the corner posts 44 and the side beams 43 are rectangular steel pipes. As shown in fig. 8, the iron case 21 is provided with iron case openings 35 with a height of 10cm near the side wall of the propulsion vehicle 1 and at the bottom of the side wall opposite to the side wall, so as to improve the efficiency of filling materials entering and exiting the case body, and the height of the iron case openings 35 can be set according to actual construction requirements and conditions.

The application method of the road embankment over-wet filling turning and baking device provided by the embodiment comprises the following specific steps:

Step S1: determining and controlling the water content: the optimal water content of the embankment filler is measured by adopting a compaction experiment, and the accumulated plastic deformation of the embankment filler with different water contents is tested by adopting a dynamic triaxial experiment under the dynamic load loading condition, so that the optimal water content of the embankment filler with high liquid limit under the dynamic load is obtained; taking the average value +/-2% of the optimal water content obtained by the two experiments as the control water content of the embankment filler; the dynamic triaxial test is adopted to test that the confining pressure is 10kPa and the axial stress ratio is 1:0.5 (ratio of principal stress to side stress of triaxial sample, side soil pressure coefficient of 0.5), and dynamic stress amplitude of 50 kPa.

Considering that the road embankment subgrade can be disturbed by dynamic load after construction is completed, a dynamic load experiment is carried out, the accumulated plastic deformation of the soil body under the action of the dynamic load is measured, the optimal water content of the soil body is obtained, the average value of the optimal water content of road embankment filler obtained by the dynamic load experiment and the optimal water content of road embankment filler obtained by a compaction experiment is taken as the control water content, the road embankment subgrade is more in line with engineering practice, and the influence of the dynamic load is smaller and more stable after highway filling is completed.

Step S2: and (3) determining construction parameters: and selecting a section of 20-30 m as a test section in the to-be-constructed area, selecting the working depth of the turning and drying device 5 into soil according to the filling thickness of the embankment, and adjusting the travel of the hydraulic jack 31 in the lifting device 2 to ensure that the working depth of the turning and drying device 5 meets the requirement. Setting a smaller running speed and the output power of the motor 28, the fan 22 and the heating plate 23, carrying out a turning test on a test road section with a determined working depth, gradually adjusting the running speed according to the readings of the moisture content tester 7 at the bottom of the propulsion vehicle 1, and the output power of the motor 28, the fan 22 and the electric heating plate 23, so that the moisture content of the treated soil body meets the requirement of controlling the moisture content, and taking the running speed at the moment and the output power of the motor 28, the fan 22 and the heating plate 23 as the construction parameters of the turning construction of the follow-up embankment over-wet filling.

Step S2, gradually adjusting the driving speed according to the readings of the moisture content tester 7 at the bottom of the propulsion vehicle 1, and the specific process of the output power of the motor 28, the fan 22 and the electric heating plate 23 is as follows: if the real-time water content of the processed embankment wetting filler is higher than the control water content, the output power of the fan 22 and the electric heating plate 23 is increased to continuously advance for a certain distance at the previous driving speed to process the embankment wetting filler, then the real-time water content of the embankment wetting filler processed for the second time is measured, if the measured real-time water content is still too high, the output power of the fan 22 and the electric heating plate 23 is continuously increased to process the embankment wetting filler and the real-time water content after the processing is measured until the measured real-time water content is stabilized at the control water content; when the power of the fan 22 and the electric heating plate 23 is at the highest, the measured real-time water content is still too high, the vehicle hot air source 6 is turned on, and the heating power is continuously increased; if the measured real-time water content is lower than the control water content, the vehicle speed is increased so that the water content value is stabilized at the control water content.

Step S3: construction of embankment: according to the construction parameters determined in the step S2, 200-300 m is taken as a construction section, the over-wet filler of the road embankment is treated, the water content is measured once every 5-10 m by a water content tester 7 at the bottom of the propulsion vehicle 1, after the treatment is finished, the change curve of the water content is counted, and the change curve is compared with the control water content; and (3) performing secondary construction on the road section with the water content greater than the control water content after treatment, controlling the working direction of the plow blade 25 on the original running route of the vehicle, and performing reciprocating turning and baking on the over-wet filler by matching with the reverse rotation of the turning and stirring wheel 24 until the control water content is achieved.

Because the distribution condition of the soil of different road sections may be changed, the road sections which are not successfully dehumidified can be known through the change curve of the statistical water content, so that the follow-up construction can carry out secondary treatment on the road sections which are not successfully dehumidified, and the water content of the whole road sections is ensured to be stable in controlling the water content.

The embankment filling material after the turning and baking treatment reaches the optimal compaction requirement, and can be matched with engineering compaction machinery to fill the embankment. The construction methods such as airing and stewing can achieve the effect of airing only in about one week, the device can directly treat the over-wet filler by pushing the vehicle 1, the construction section of 300-500 m can be treated per hour, the over-wet filler after treatment can be directly paved and compacted, the construction time is short, and the construction efficiency is high.

It is noted that in the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. The road embankment over-wet filling turning and drying device is characterized by comprising a propelling vehicle (1), a power system (4) and a turning and drying device (5), wherein the propelling vehicle (1) is mechanically connected with the turning and drying device (5) to drive the turning and drying device (5) to move and provide required electric energy for the turning and drying device (5); the power system (4) is mechanically connected with the turning and drying device (5) to provide turning power for the turning and drying device (5);

the turning and baking device (5) consists of an iron sheet box (21), a fan (22), an electric heating plate (23), a turning and stirring wheel (24) and a plow blade (25), wherein the inside of the iron sheet box (21) is hollow, the bottom of the iron sheet box is open, the fan (22) is fixed at the top of the iron sheet box (21), the electric heating plate (23) is horizontally arranged in the iron sheet box (21) and positioned below the fan (22), and the turning and stirring wheel (24) and the plow blade (25) are both fixed at the bottom of the iron sheet box (21); the plow blades (25) are provided in plurality, and in the forward advancing direction of the propulsion vehicle (1), the plow blades (25) are positioned in front of the stirring wheels (24);

The plow blade (25) comprises a connecting rod (36), a first connecting screw cap (37), a first rotating shaft (38), a toenail connecting steel sheet (39), toenail plates (40), a first baffle plate (41) and a second baffle plate (42), wherein the first connecting screw cap (37) is provided with two first connecting screw caps and is respectively arranged at the left end and the right end of the bottom of the connecting rod (36), the first rotating shaft (38) is arranged between the two first connecting screw caps (37) and the two ends of the first connecting screw caps are respectively inserted into the first connecting screw caps (37), the toenail plates (40) are fixedly connected with the first rotating shaft (38) through the toenail connecting steel sheet (39), and the first baffle plate (41) and the second baffle plate (42) are positioned at the two sides of the toenail connecting steel sheet (39) and form a certain included angle to be fixed on the surface of the first connecting screw caps (37).

2. The highway embankment wetting filler turning and drying device according to claim 1, wherein the plow blade (25) is fixedly connected to the bottom of the iron sheet box (21) through a reversing device, and the reversing device consists of a second connecting screw cap (45), a second rotating shaft (46), a plow blade connecting steel sheet (47), a fan-shaped movable block (48), a third baffle (49), a fourth baffle (50), a first bottom plate (51) and a second bottom plate (52); the two second connecting nuts (45) are respectively arranged at the bottom of the iron case (21); the second rotating shaft (46) is horizontally and transversely arranged between the two second connecting nuts (45) and two ends of the second rotating shaft are respectively inserted into the second connecting nuts (45), and the second rotating shaft (46) is fixedly connected with the top of the plow blade (25), namely the top of the connecting rod (36), through the plow blade connecting steel sheet (47); the third baffle (49) and the fourth baffle (50) are positioned on two sides of the top of the connecting rod (36) and form a certain included angle to be fixed on the surface of the second connecting nut (45), the third baffle (49) is positioned on the rear side of the connecting rod (36), the fourth baffle (50) is positioned on the front side of the connecting rod (36), the first bottom plate (51) is positioned on the left side of the connecting rod (36) and fixedly connected with the bottoms of the third baffle (49) and the fourth baffle (50), the second bottom plate (52) is positioned on the right side of the connecting rod (36) and fixedly connected with the bottoms of the third baffle (49) and the fourth baffle (50), the fan-shaped movable block (48) is arranged on the first bottom plate (51) and the second bottom plate (52) and positioned between the plow blade connecting steel sheet (47) and the baffle far away from the plow blade connecting steel sheet (47), and the baffle far away from the plow blade connecting steel sheet (47) refers to the third baffle (49) or the fourth baffle (50).

3. The highway embankment over-wet filler turning and baking device according to claim 2, characterized in that the toe board (40) is parallel to the ground in the initial state, and the toe board connecting steel sheet (39) and the toe board (40) are mutually perpendicular;

the first baffle plates (41) and the second baffle plates (42) are fixed on the surfaces of the two first connecting nuts (37) at an included angle of 60 degrees, the first baffle plates (41) are positioned on one side of the toe plate connecting steel sheet (39) close to the front part of the toe plate (40), the second baffle plates (42) are positioned on one side of the toe plate connecting steel sheet (39) close to the rear part of the toe plate (40), the first baffle plates (41) are installed on the surfaces of the two first connecting nuts (37) at an included angle of-30 degrees with the vertical surface, and the second baffle plates (42) are installed on the surfaces of the two first connecting nuts (37) at an included angle of 30 degrees with the vertical surface;

the connecting rod (36) is positioned at the fourth baffle (50) in the initial state, and the fan-shaped movable block (48) is positioned between the plow blade connecting steel sheet (47) and the third baffle (49) in the initial state;

the third baffle plate (49) and the fourth baffle plate (50) are fixed on the surfaces of the two second connecting nuts (45) at an included angle of 65 degrees, the third baffle plate (49) and the vertical surface are fixed on the surfaces of the two second connecting nuts (45) at an included angle of 45 degrees, and the fourth baffle plate (50) and the vertical surface are fixed on the surfaces of the two second connecting nuts (45) at an included angle of-20 degrees.

4. A highway embankment over-wet filling turning and baking device according to any one of claims 1-3, wherein the number of fans (22) is at least two and are uniformly arranged at the top of the iron sheet box (21);

the number of the electric heating plates (23) is at least one, and the electric heating plates are vertically and sequentially arranged below the fan (22) at intervals;

the number of the stirring wheels (24) is at least one and the stirring wheels are uniformly arranged at the bottom of the iron sheet box (21);

the turning wheel (24) consists of a rotating shaft and a plurality of uniformly distributed 7-shaped steel sheets (33), wherein each four 7-shaped steel sheets (33) are divided into a group from left to right on the rotating shaft, and each group of 7-shaped steel sheets (33) is arranged on the rotating shaft according to 0 degree, 90 degree, 180 degree and 270 degree;

the plow blade (25) and each group of 7-shaped steel sheets (33) arranged on the rotating shaft according to 0 degree, 90 degrees, 180 degrees and 270 degrees on the stirring wheel (24) are arranged at intervals.

5. The highway embankment wetting filler turning and drying device according to claim 4, wherein the power system (4) consists of a gearbox (26) and a motor (28), the motor (28) is electrically connected with a power supply on a propulsion vehicle (1), an output end of the motor (28) is mechanically connected with an input end of the gearbox (26), and an output end of the gearbox (26) is mechanically connected with a rotating shaft of a turning and stirring wheel (24);

The electric heating plate (23) and the fan (22) are respectively provided with a power regulating switch, and the motor (28) is provided with a motor speed regulator;

the turning and drying device (5) is connected with the propelling vehicle (1) in a lifting manner through the lifting device (2); the lifting device (2) consists of a convex steel plate, a lifting auxiliary mechanism (30), a hydraulic jack (31) and a hydraulic control device (32), wherein the hydraulic control device (32) is connected with the hydraulic jack (31) and is used for adjusting the stroke of the hydraulic jack (31); the lifting auxiliary mechanism (30) is provided with 1-3 lifting grooves with open tops and bottoms, and the number, the internal shape and the internal size of the lifting grooves are consistent with those of the convex-shaped steel plates; the convex steel plate is fixedly connected with the iron sheet box (21), is embedded into the lifting groove from top or bottom and can vertically move along the lifting groove; the hydraulic jack (31) is arranged at the bottom of the lifting groove and is fixedly connected with the convex steel plate positioned in the lifting groove;

the lifting auxiliary mechanism (30) is provided with a high-strength bolt mounting hole positioned at the back of the lifting groove, and the lifting auxiliary mechanism (30) is fixedly connected with the propulsion vehicle (1) through the high-strength bolt mounting hole;

A vehicle hot air source (6) is arranged in the propulsion vehicle (1), and a hot air outlet and a water content tester (7) are arranged at the middle position of the bottom of the propulsion vehicle;

the iron sheet case (21) is close to the side wall of the propulsion vehicle (1) and the bottom of the side wall opposite to the side wall is provided with an iron sheet case opening (35).

6. The highway embankment wet filling turning and baking device according to claim 5, wherein the convex steel plates are fixedly connected with an iron sheet box (21) through a connecting device (3), the connecting device (3) comprises 1-3 rectangular frames longitudinally and vertically fixed on the iron sheet box (21), rectangular steel pipes forming at least two vector triangles with the rectangular frames are fixed at diagonal lines of each rectangular frame, X-shaped steel pipes (20) are arranged between two adjacent rectangular frames which are parallel to each other and are arranged at a certain interval, and four corners of each X-shaped steel pipe (20) are in one-to-one correspondence with upper midpoints and lower midpoints of the two adjacent rectangular frames; one side of each rectangular frame far away from the iron leather case (21) is fixedly provided with a convex steel plate, and the bottom surface of the convex steel plate faces to the propulsion vehicle (1);

the rectangular frames are fixed on the iron leather case (21) through the first concave steel groove (14) and the second concave steel groove (15), and the first concave steel groove (14) and the second concave steel groove (15) are perpendicular to the rectangular frames; the first concave steel groove (14) is horizontally fixed on the side wall of the iron box (21) close to the propulsion vehicle (1) at a position 1/3 of the height from the top of the iron box, and the second concave steel groove (15) is horizontally fixed on the side wall of the iron box (21) at a position 2/3 of the height from the top of the iron box;

The turnover baking device (5) and the power system (4) are both fixed on a steel pipe support frame, the steel pipe support frame is composed of a first square steel pipe (8), a second square steel pipe (9), a third square steel pipe (10), a fourth square steel pipe (11), a fifth square steel pipe (12) and a sixth square steel pipe (13), the fifth square steel pipe (12) and the sixth square steel pipe (13) are parallel to each other, the first square steel pipe (8), the second square steel pipe (9), the third square steel pipe (10) and the fourth square steel pipe (11) are parallel to each other, the first square steel pipe (8) and the second square steel pipe (9) are horizontally fixed at one ends of the fifth square steel pipe (12) and the sixth square steel pipe (13), the third square steel pipe (10) and the fourth square steel pipe (11) are horizontally fixed at the other ends of the fifth square steel pipe (12) and the sixth square steel pipe (13), and the third square steel pipe (8), the third square steel pipe (9), the third square steel pipe (10) and the fourth square steel pipe (11) are vertically fixed at a certain distance from each other, and the third square steel pipe (11) and the fourth square steel pipe (13) are vertically arranged at intervals;

The novel steel box is characterized in that the iron sheet box (21) is vertically fixed on a subframe formed by a second square steel pipe (9), a fifth square steel pipe (12) and a sixth square steel pipe (13), the gearbox (26) is fixed on a subframe formed by a first square steel pipe (8), the second square steel pipe (9) and the fifth square steel pipe (12), the motor (28) is arranged at one end, close to the gearbox (26), of the first concave steel groove (14), and the plow blade (25) is fixed at the bottom of the third square steel pipe (10) through a reversing device, namely, two second connecting nuts (45) are arranged at the bottom of the third square steel pipe (10).

7. The method for using the road embankment over-wet filling turning and baking device according to claim 5 or 6, which is characterized by comprising the following steps:

s2, determining construction parameters: the working depth of the turning and drying device (5) is selected according to the filling thickness of the embankment, and then the travel of a hydraulic jack (31) in the lifting device (2) is regulated by a hydraulic control device (32) so that the working depth of the turning and drying device (5) meets the requirement; selecting a test road section in a region to be constructed, determining the running speed of the embankment over-wet filling material during turning and baking construction, and the output power of a motor (28), a fan (22) and an electric heating plate (23), namely determining construction parameters;

S3, embankment construction: and (3) according to the construction parameters determined in the step (S2), turning over and baking the road embankment over-wet filler according to the sections, and measuring the actual water content of the construction road section over-wet filler in real time by a water content tester (7) at the bottom of the propulsion vehicle (1), comparing the actual water content with the control water content, and performing secondary construction on the road section with the water content greater than the control water content after treatment.

8. The method for using the road embankment over-wet filling turning and baking device according to claim 7, wherein the test confining pressure of the step S1 dynamic triaxial test is 10kPa, and the axial stress ratio is 1:0.5, dynamic stress amplitude is 50kPa;

step S2, determining that the construction parameters are that a smaller running speed and the output power of a motor (28), a fan (22) and an electric heating plate (23) are preliminarily set, performing a overturn test on a test road section according to a determined working depth, then adjusting the running speed according to the reading of a water content tester (7) at the bottom of a propulsion vehicle (1), and adjusting the output power of the motor (28), the fan (22) and the electric heating plate (23) through a power adjusting switch and a motor speed regulator on the electric heating plate (23) and the fan (22) until the water content of the treated soil meets the requirement of controlling the water content;

And step S3, performing secondary construction on the road section with the water content greater than the controlled water content after treatment, namely changing the working direction of the plow blade (25) and controlling the rotating direction of the stirring wheel (24) by moving the fan-shaped movable block (48) to match with the forward and backward movement of the propulsion vehicle (1) on the original travel route of the propulsion vehicle (1), and performing reciprocating stirring and drying on the over-wet filler until the water content is controlled.

9. The method for using the road embankment wetting filler turning and baking device according to claim 8, wherein the specific process of adjusting the running speed according to the reading of the water content tester (7) at the bottom of the propulsion vehicle (1) and the output power of the motor (28), the fan (22) and the electric heating plate (23) is as follows: if the real-time water content of the processed embankment wetting filler is higher than the control water content, the output power of the fan (22) and the electric heating plate (23) is increased to continuously process the embankment wetting filler for a certain distance before the driving speed in the previous period, then the real-time water content of the embankment wetting filler processed for the second time is measured, if the measured real-time water content is still too high, the output power of the fan (22) and the electric heating plate (23) is continuously increased to process the embankment wetting filler and the real-time water content after the processing is measured until the measured real-time water content is stabilized at the control water content; when the power of the fan (22) and the electric heating plate (23) is at the highest, the measured real-time water content is still too high, the vehicle hot air source (6) is turned on, and the heating power is continuously increased; if the measured real-time water content is lower than the control water content, the vehicle speed is increased so that the water content value is stabilized at the control water content.