CN110777608A

CN110777608A - Highway embankment over-wet filler turning and drying device and using method thereof

Info

Publication number: CN110777608A
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: 2020-02-11
Anticipated expiration: 2039-12-03
Also published as: CN110777608B

Abstract

The invention discloses a device for overturning and drying over-wet filler on a highway embankment and a using method thereof, wherein the device comprises a propelling vehicle, a power system and an overturning and drying device, wherein the propelling vehicle is mechanically connected with the overturning and drying device to drive the overturning and drying device to move and provide required electric energy for the overturning 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 a sheet iron box, a fan, an electric heating plate, a turning and stirring wheel and a plough blade, wherein the sheet iron box is hollow inside, the bottom of the sheet iron box is open, the fan is fixed at the top of the sheet iron box, the electric heating plate is horizontally arranged in the sheet iron box and is positioned below the fan, and the turning and stirring wheel and the plough blade are both fixed at the bottom of the sheet iron box; the plurality of plough blades are arranged, and in the forward advancing direction of the propelled vehicle, the plough blades are positioned in front of the stirring wheel. The plough blade consists of a connecting rod, a first connecting nut, a first rotating shaft, a toe plate connecting steel sheet, a toe plate, a first baffle plate and a second baffle plate. The problem that a hot air source needs to be introduced from the outside in the conventional embankment over-wet filler treatment method is solved.

Description

Highway embankment over-wet filler turning and drying device and using method thereof

Technical Field

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

Background

With the development of economic construction in China, a large number of highways are planned in southern areas. Due to the fact that the south is wet, hot and rainy, the water content of the embankment filler is high and the embankment filler is not low in highway engineering construction, 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 filling material of the embankment and accelerate the engineering progress, the traditional method mostly adopts airing and filling changing methods, the airing method needs to be carried out in the sun, most southern areas are tropical or subtropical monsoon climate, the traditional method is humid and rainy, continuous rainfall can be met in the construction period, the tedding effect is not ideal, the filling changing method can generate a large amount of waste soil, a large amount of filling changing soil needs to be transported in an earth taking place, and certain water and soil loss and environmental damage can be caused. In addition, different methods are tried in engineering to treat the embankment filler to meet the specified compaction requirement even if the embankment filler can reach the optimal water content. For example, a solidified material such as lime is added into the embankment over-wet filler and the embankment over-wet filler is braised, crushed stone and three-ply soil are added into the embankment filler, the water content of the embankment filler is drained by adopting an electroosmosis method, the water content of the embankment over-wet filler is controlled by directly applying strong wind to the embankment over-wet filler by adopting an engineering machine, or the embankment over-wet filler is shoveled into a stirring box, added with a mixture, stirred and then sprayed out by hot wind, so that the aim of changing the embankment. Or turning out the over-wet filling material of the embankment and introducing a hot air source to dry the over-wet filling material. The above methods can achieve the purpose of treating the too wet filling material of the embankment, but still have the following defects:

1. a large amount of time is needed for airing and braising the materials, the materials are easily influenced by weather, and the construction period is long;

2. when the electro-osmosis method is used for treating the water in the embankment filler, the safety risks such as electric leakage, electric shock and the like exist in the construction process;

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

4. turning out the over-wet filler of the embankment, introducing a hot air source, drying the over-wet filler, introducing the hot air source from the outside, and ensuring that the connection stability of the traction mechanism and the turning and drying device is not high;

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

Disclosure of Invention

The embodiment of the invention aims to provide a highway embankment over-wet filler overturning and drying device, which aims to solve the problems of long construction time, large workload, high manufacturing cost, safety risks of electric leakage, electric shock and the like of the existing construction method, the problem that the connection stability of a hot air source, a traction mechanism and an overturning and drying device is poor when a method for introducing the hot air source to dry the over-wet filler after the embankment over-wet filler is overturned out needs to be introduced from the outside, and the problem that the working depth is difficult to freely control in the treatment process by the existing treatment method, so that the optimal water content distribution depth of the whole road section is not uniform.

Another purpose of the embodiment of the invention is to provide a use method of the road embankment over-wet filler overturning and drying device.

The technical scheme adopted by the embodiment of the invention is that the highway embankment over-wet filler overturning and drying device comprises a propelling vehicle, a power system and an overturning and drying device, wherein the propelling vehicle is mechanically connected with the overturning and drying device to drive the overturning and drying device to move and provide required electric energy for the overturning 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 a sheet iron box, a fan, an electric heating plate, a turning and stirring wheel and a plough blade, wherein the sheet iron box is hollow inside, the bottom of the sheet iron box is open, the fan is fixed at the top of the sheet iron box, the electric heating plate is horizontally arranged in the sheet iron box and is positioned below the fan, and the turning and stirring wheel and the plough blade are both fixed at the bottom of the sheet iron box; the plurality of plough blades are arranged, and in the forward advancing direction of the propelled vehicle, the plough blades are positioned in front of the stirring wheel.

Further, the plough sword is connected the steel sheet by connecting rod, first coupling nut, first axis of rotation, toe board, first baffle and second baffle are constituteed, first coupling nut is equipped with two and installs respectively in both ends about the connecting rod bottom, first axis of rotation is installed between two first coupling nuts and in its both ends inserted a first coupling nut respectively, the toe board passes through toe board and connects steel sheet and first axis of rotation fixed connection, first baffle and second baffle are located toe board and connect the steel sheet both sides and become certain contained angle and fix on first coupling nut surface.

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 nut, 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; two second connecting nuts are arranged and are respectively installed at the bottom of the iron sheet box; the second rotating shaft is horizontally and transversely arranged between the two second connecting screw nuts, two ends of the second rotating shaft are respectively inserted into one second connecting screw nut, and the second rotating shaft is fixedly connected with the top of the plough blade, namely the top of the connecting rod, through the plough blade connecting steel sheet; the third baffle and the fourth baffle are located connecting rod top both sides and become certain contained angle and fix the surface at second connecting nut, and the third baffle is located the connecting rod rear side, the fourth baffle is located the connecting rod front side, first bottom plate be located the connecting rod left side and with third baffle and fourth baffle bottom fixed connection, the second bottom plate be located the connecting rod right side and with third baffle and fourth baffle bottom fixed connection, first bottom plate and second bottom plate are arranged in to fan-shaped movable block, and be located plough sword and connect the steel sheet and keep away from between the baffle of plough sword connection steel sheet, this baffle of keeping away from plough sword connection steel sheet is third baffle or fourth baffle.

Further, the toe plate is parallel to the ground in the initial state, and the toe plate connecting steel sheet and the toe plate are perpendicular to each other;

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

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

the third baffle and the fourth baffle form a 65-degree included angle and are fixed on the surfaces of the two second connecting screw caps, the third baffle and the vertical surface form a 45-degree included angle and are fixed on the surfaces of the two second connecting screw caps, and the fourth baffle and the vertical surface form a-20-degree included angle and are fixed on the surfaces of the two second connecting screw caps.

Furthermore, the number of the fans is at least two, and the fans are uniformly arranged on the top of the iron sheet box;

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

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

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

the plough blades and each group of the turning and stirring wheels are arranged at intervals according to 7-shaped steel sheets which are arranged on the rotating shaft at 0 degree, 90 degrees, 180 degrees and 270 degrees.

Furthermore, the power system consists of a gearbox and a motor, the motor is electrically connected with a power supply on the 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 connected with the propulsion vehicle in a lifting way 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, and 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 size of the lifting grooves are consistent with those of the convex steel plates; the convex steel plate is fixedly connected with the iron sheet box, is embedded into the lifting groove from top to 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 the lifting auxiliary mechanism is fixedly connected with the propulsion vehicle through the high-strength bolt mounting hole;

a vehicle hot air source is arranged in the propulsion vehicle, and a hot air outlet and a moisture content tester are arranged in the middle of the bottom of the propulsion vehicle;

the lateral wall that the iron sheet case is close to the propulsion vehicle and the lateral wall bottom relative with this lateral wall all are equipped with the iron sheet case entrance to a cave.

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

the rectangular frame is fixed on the iron sheet box through a first concave steel groove and a second concave steel groove, and the first concave steel groove and the second concave steel groove are perpendicular to the rectangular frame; the first concave steel groove is horizontally fixed on the side wall of the iron sheet box close to the propelling vehicle at a position which is 1/3 away from the top of the iron sheet box, and the second concave steel groove is horizontally fixed on the side wall of the iron sheet box at a position which is 2/3 away from the top of the iron sheet box;

the turning and drying device and the power system are fixed on a steel pipe support frame, the steel pipe support frame is composed 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 steel pipe, the fifth square steel pipe and the sixth steel pipe are parallel, the first square steel pipe, the second square steel pipe, the third square steel pipe and the fourth steel pipe are parallel, 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 steel pipe, the third square steel pipe and the fourth steel pipe are horizontally fixed at the other end of the fifth square steel pipe and the other end of the sixth steel pipe, the first square steel pipe, the second square steel pipe, the third square steel pipe and the fourth steel pipe are vertical to the fifth square steel pipe and the sixth steel pipe, the first square steel pipe and the second square steel pipe are arranged at a certain interval, the third square steel pipe and the fourth square steel pipe are adjacently attached;

the iron sheet box is vertically fixed on a sub-frame formed by a second square steel pipe, a fifth square steel pipe and a sixth steel pipe, the gearbox is fixed on the sub-frame formed by a first square steel pipe, the second square steel pipe and the fifth square steel pipe, the motor is installed at one end, close to the gearbox, of the first concave steel groove, the plough blade is fixed at the bottom of the third square steel pipe through the reversing device, and namely the two second connecting nuts are installed at the bottom of the third square steel pipe.

The embodiment of the invention adopts another technical scheme that a using method of the over-wet filler overturning and drying device for the highway embankment is carried out according to the following steps:

step S1: determining the controlled water content: measuring the optimal water content of the embankment filler by adopting a compaction experiment; testing the accumulated plastic deformation of the embankment filler with different water contents under the dynamic load loading condition by adopting a dynamic triaxial experiment to obtain the optimal water content of the high liquid limit embankment filler under the dynamic load; taking the average value +/-2% of the optimal water content obtained in the two experiments as the controlled water content of the embankment filler;

step 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 a hydraulic control device to enable the working depth of the turning and drying device to meet the requirement; selecting a test road section in a region to be constructed, and determining the driving speed when the embankment is subjected to over-wet filler turning and drying construction and the output power of a motor, a fan and a heating plate, namely determining construction parameters;

step S3, embankment construction: and (5) turning and drying the over-wet filler of the embankment according to the construction parameters determined in the step (S2) section by section, pushing a water content tester at the bottom of the vehicle to measure the actual water content of the over-wet filler of the construction road section in real time, comparing the actual water content with the controlled water content, and performing secondary construction on the road section of which the water content is greater than the controlled water content after treatment.

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

step S2, determining that the construction parameters are that a smaller travelling speed is preliminarily set and the output power of the motor, the fan and the heating plate is used for carrying out the overturning and drying test on the test road section with the determined working depth, then the travelling speed is adjusted according to the reading of a moisture content tester at the bottom of the propelling vehicle, and the output power of the motor, the fan and the electric heating plate is adjusted through the electric heating plate, a power adjusting switch on the fan and a motor speed regulator until the moisture content of the processed soil body reaches the requirement of controlling the moisture content;

and step S3, performing secondary construction on the road section with the processed water content being larger than the controlled water content, namely changing the working direction of the plough blade and controlling the rotation direction of the stirring wheel by matching the forward and backward movement of the propelling vehicle through the movable fan-shaped block on the original advancing 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 concrete process of adjusting the traveling speed according to the reading of the moisture 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 over-wet filler is higher than the control water content, increasing the output power of the fan and the electric heating plate, continuing to move forward for a certain distance at the previous traveling speed to process the embankment over-wet filler, then measuring the real-time water content of the embankment over-wet filler processed for the second time, if the measured real-time water content is still too high, continuing to increase the output power of the fan and the electric heating plate to process the embankment over-wet filler and measure the processed real-time water content 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, and the measured real-time water content is still too high, the hot air source of the vehicle is turned on, and the heating power is continuously improved; and if the measured real-time water content is lower than the controlled water content, increasing the vehicle speed to stabilize the water content value at the controlled water content.

The embodiment of the invention has the beneficial effects that:

(1) the embodiment of the invention is connected with a propelling vehicle through a connecting device and a lifting device, a plurality of rows of screw holes are arranged on a lifting groove of the lifting device, the lifting device can be stably connected with the propelling vehicle through high-strength bolts, a hydraulic control device is arranged in a vehicle cab, a driver can change the stroke of a hydraulic jack in the lifting device through the hydraulic control device according to the actual overturning depth requirement to adjust the working depth of the overturning device, the problem that the working depth is difficult to control freely in a treatment project by the existing construction method, so that the optimal water content distribution depth of the whole road section is not uniform is solved, the optimal water content of the whole road section is ensured to be uniformly distributed at the construction design depth, the over-wet filler is treated in place at one time, secondary construction is not needed in a depth range, and the over-wet filler in the depth range can be directly compacted and paved as long as the water content in the depth range, the construction efficiency is improved, and the embankment is filled with sufficient filler. The connecting device is provided with a plurality of vector triangles to ensure the connection stability of the power system and the overturning device and the connection stability of the overturning device and the propulsion vehicle, and an embedded structure is adopted between the convex steel plate embedding groove and the upgrading groove to ensure that the lifting groove limits the convex steel plate to move up and down, and simultaneously, the fan and the electric heating plate are arranged to output heat energy to dry the over-wet filler, thereby solving the problem that the method for introducing the hot air source to dry the over-wet filler after the over-wet filler of the embankment is overturned out needs to introduce the hot air source from the outside, and the connection stability of the traction mechanism and the overturning device is poor.

(2) The plough blade in the embodiment of the invention can shovel and loosen the high liquid limit soil which is naturally generated with dead weight consolidation settlement, turn out the deep over-wet filler, and can dry the over-wet filler in the first time and reduce the loss of the blade of the stirring wheel by matching with the turning and drying device. 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 overturning and drying device can process the construction road section back and forth under the control of the propelling vehicle, so that the construction quality is improved. The inside cavity of the iron-clad box, the lower part is in the open mode, can guarantee that powerful hot-blast does not run off, improve drying efficiency, 10cm high entrance to a cave has all been reserved to lateral wall bottom around the iron-clad box, can improve the efficiency of filler business turn over its box, wholly improve the efficiency of construction, shorten the engineering time, and need not transport rubble and three shut soil in the work progress, need not arrange extra manpower and materials to handle excessively wet filler, do not have the safety risk such as electric leakage, electric shock, the problem that the construction time is long, work load is big, the cost is high is dredged to the method that adopts sunning and smoldering material at present.

(3) The plough blade is provided with the rotating shaft, when a vehicle moves forwards, the fan-shaped movement is fast, the connecting rod drives the toe board to move clockwise to be close to the third baffle, so that the plough blade and the horizontal plane form an included angle of 70 degrees, soil bodies are accumulated on the front part of the toe board, the convex connecting sheet is in contact 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 carried out; when the vehicle backs, remove fan-shaped activity and make the connecting rod drive toe board anticlockwise movement and be close to the fourth baffle soon for the plough sword is reverse to become 45 contained angles with the horizontal plane, and at this moment, the plough sword sets up with turning over the interval of 7 font steel sheet groups on the stirring wheel, can pile up the soil body on the toe board rear portion simultaneously and lead to the contact of convex character form connection piece and first baffle to make the toe board rear portion reverse with the contained angle of vertical face be 60 and turn over the native operation. The forward soil shoveling and reverse soil shoveling conversion of the plough blade can be realized through the rotation of the rotating shaft and the limitation of the baffle, the forward and reverse rotation of the stirring wheel is matched, the secondary stirring shoveling 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 construction section can adapt to various complicated construction sections.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a highway embankment over-wet filler overturning device in the embodiment of the invention.

Fig. 2 is a schematic structural diagram of a connecting device in the highway embankment over-wet filler overturning device according to the embodiment of the invention.

Fig. 3 is a schematic structural diagram of an embodiment of a highway embankment over-wet filler overturning device according to the embodiment of the invention.

Fig. 4 is a bottom view of the road embankment over-wet filler turning and drying device in the embodiment of the invention.

Fig. 5 is a schematic structural diagram of a stirring wheel in the highway embankment over-wet filler stirring and drying device according to the embodiment of the invention.

Fig. 6 is a schematic structural view of an electric hot plate in the highway embankment over-wet filler overturning and drying device according to the embodiment of the invention.

Fig. 7 is a structural view of the inside of a bellows in the road embankment over-wet filler turning and drying device.

Fig. 8 is a schematic view of an opening on the front side of a bellows in the wet filler overturning device for the highway embankment according to the embodiment of the invention.

Fig. 9 is a schematic structural view of a plough blade in the road embankment over-wet filler overturning device according to the embodiment of the invention.

Fig. 10 is a partially enlarged view of a structure of a lower portion of a plow blade in the device for turning over wet filler for highway embankment according to the embodiment of the present invention.

Fig. 11 is a partially enlarged view of the upper structure of the plow blade in the road embankment over-wet filler turn-over drying device according to the embodiment of the invention.

In the figure, 1, a propulsion vehicle, 2, a lifting device, 3, a connecting device, 4, a power system, 5, a turning and drying device, 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, an X-shaped steel pipe, 21, an iron sheet box, 22, a fan, 23, an electric heating plate, 24, a turning and stirring wheel, 25, a plough 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-shaped steel plates, 34, a fin heating pipe, 35. the steel box comprises a steel box opening, 36 connecting rods, 37 first connecting nuts, 38 first rotating shafts, 39 toe plate connecting steel sheets, 40 toe plates, 41 first baffle plates, 42 second baffle plates, 43 edge beams, 44 corner columns, 45 second connecting nuts, 46 second rotating shafts, 47 plough edge connecting steel sheets, 48 fan-shaped movable blocks, 49 third baffle plates, 50 fourth baffle plates, 51 first bottom plates and 52 second bottom plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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

The power system 4 consists 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 propelled vehicle 1 to break the filler. As shown in fig. 5, the stirring wheel 24 is composed of a rotating shaft and a plurality of 7-shaped steel sheets 33 which are uniformly distributed, every four 7-shaped steel sheets 33 on the rotating shaft from left to right are divided into a group, and the 7-shaped steel sheets 33 of each group are arranged on the rotating shaft according to the angles of 0 degree, 90 degrees, 180 degrees and 270 degrees; the distance between each 7-shaped steel sheet 33 is 15cm, the distance between each group is 15cm, the distance between the first group of 7-shaped steel sheets 33 and the leftmost end of the stirring wheel 24 is 17.5cm, the distance between the last group of 7-shaped steel sheets 33 and the rightmost end of the stirring wheel 24 is 17.5cm, the cutter head directions of the 7-shaped steel sheets 33 arranged at 0-degree and 90-degree are rightward, and the cutter head directions of the 7-shaped steel sheets 33 arranged at 180-degree and 270-degree are leftward. The number of the stirring wheels 24 is at least one, and when the number of the stirring wheels 24 is more than 1, the stirring wheels 24 are mutually parallel and are uniformly arranged at the bottom of the iron sheet box 21.

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

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 toe plate connecting steel sheet 39, a toe plate 40, a first baffle plate 41 and a second baffle plate 42, the connecting rod 36 is a rectangular steel rod, and two first connecting nuts 37 are provided and respectively installed at the left and right ends of the bottom of the connecting rod 36; the first rotating shaft 38 is installed between the two first coupling nuts 37 and both ends thereof are inserted into one first coupling 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 and the toe plate 40 are perpendicular to each other; the first and

second blocking plates

41 and 42 are respectively positioned at an angle of 30 degrees with the vertical plane at both sides of the toe plate connecting steel sheet 39 and fixed on the surface of the first connecting nut 37, i.e. the angle between the first and

second blocking plates

41 and 42 is 60 degrees. And the first fence 41 is positioned at a side of the toe plate connecting steel piece 39 near the front of the toe plate 40 and the second fence 42 is positioned at a side of the toe plate connecting steel piece 39 near the rear of the toe plate 40. When the propelled vehicle 1 advances, soil is accumulated on the front parts of the toe plates 40 and acts on the front parts of the toe plates 40, so that the toe plate connecting steel sheets 39 rotate clockwise by 30 degrees to the second baffle plates 42 to carry out soil turning operation.

As shown in fig. 9 and 11, the plow blade 25 is fixedly connected to the bottom of the iron container 21 by 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 plate 49, a fourth baffle plate 50, a first bottom plate 51 and a second bottom plate 52. The second connecting nuts 45 are provided with two second connecting nuts 45 which are respectively arranged at the bottom of the iron sheet box 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 are respectively inserted into one second connecting nut 45, and the second rotating shaft 46 is fixedly connected with the top of the plough blade 25, namely the top of the connecting rod 36, through the plough blade connecting steel sheet 47. The third and

fourth baffles

49 and 50 are located 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 angle of 65 °, specifically, the third baffle 49 is fixed to the surfaces of the two second coupling nuts 45 at an angle of 45 ° to the vertical plane, the fourth baffle 50 is fixed to the surfaces of the two second coupling nuts 45 at an angle of-20 ° to the vertical plane, and the third baffle 49 is located 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 50 is located 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 positioned at the left side of the top of the connecting rod 36 (based on the front side thereof, i.e., the side close to the front of the toe plate 40) and fixedly connected with the bottoms of the third baffle plate 49 and the fourth baffle plate 50, the second bottom plate 52 is positioned at the right side of the top of the connecting rod 36 (based on the front side thereof, i.e., the side close to the front of the toe plate 40) and fixedly connected with the bottoms of the third baffle plate 49 and the fourth baffle plate 50, and the fan-shaped movable block 48 is positioned on the first bottom plate 51 and the second bottom plate 52 and positioned between the plow blade connecting steel piece 47 and the baffle plate far away from the plow blade connecting steel piece 47, and the baffle plate far away from the plow blade connecting steel. When the vehicle 1 is propelled to move forward, the connecting rod 36 is attached to the fourth baffle 50, and the fan-shaped movable block 48 is positioned between the plough blade connecting steel sheet 47 and the third baffle 49 and used for supporting and fixing the connecting rod 36, so that the connecting rod 36 and the horizontal plane form an included angle of 70 degrees to carry out 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 meter, the front soil body acts on the connecting rod 36 to enable the connecting rod 36 to rotate clockwise for 65 degrees to the third baffle 49, then the fan-shaped movable block 48 is placed between the plough blade connecting steel sheet 47 and the fourth baffle 50 to support the fixed connecting rod 36, and the connecting rod 36 and the horizontal plane form an included angle of 45 degrees to carry out reverse soil turning. At this time, soil is accumulated on the rear part of the toe plate 40 and acts on the rear part of the toe plate 40, so that the toe plate connecting steel sheet 39 rotates anticlockwise by 30 degrees to the first baffle 41, and soil turning operation is carried out. When the propelled vehicle 1 needs to go forward again after reversing, the fan-shaped movable block 48 is taken out, the vehicle continues to reverse for 0.5 meter, the rear soil body acts on the connecting rod 36 to enable the connecting rod 36 to rotate anticlockwise for 65 degrees to the fourth baffle 50, then the fan-shaped movable block 48 is placed between the plough blade connecting steel sheet 47 and the third baffle 49, and then the vehicle is driven to go forward. The initial position of the toe plate 40 is a horizontal position, and the initial position of the fan-shaped movable block 48 is between the blade connecting steel piece 47 and the third baffle 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 rotating shaft 46 between the first baffle plate 41 and the second baffle plate 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 plough blades 25 and each group of 7-shaped steel sheets 33 on the stirring wheel 24 are arranged at intervals, three groups of 7-shaped steel sheets 33 on the stirring wheel 24 are arranged, the occupied length of each group of 7-shaped steel sheets 33 on a rotating shaft of the stirring wheel 24 is 45cm, the interval between each group is 15cm, the width of each plough blade 25 is less than or equal to 5cm, 4 plough blades 25 are arranged, the distance between the first plough blade 25 and the left side of the stirring device 5 is 10cm, the distance between the fourth plough blade 25 and the right side of the stirring device 5 is 10cm, the distance between the two adjacent plough blades 25 is 60cm, the plough blades 25 and the stirring wheel 24 are not interfered with each other, and the distance between the plough blades 25 is calculated from the central axis of the plough blades 25.

The overturning 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 overturning and drying device 5 is adjustable. As shown in fig. 3, the lifting device 2 is composed of a steel plate shaped like a Chinese character 'tu', a lifting auxiliary mechanism 30, a hydraulic jack 31, and a hydraulic control device 32. The convex steel plate is fixedly connected with the iron sheet box 21 through the connecting device 3, the lifting auxiliary mechanism 30 is provided with lifting grooves with the top and the bottom in an open state, the shapes and the sizes of the inner parts of the lifting grooves are consistent with those of the convex steel plate, and the number of the lifting grooves and the convex steel plate is 1-3; the 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 two steel plates are arranged in the embodiment and are respectively a first steel plate 18 and a second steel plate 19. The back of the lifting groove is provided with a high-strength bolt mounting hole, and the lifting auxiliary mechanism 30 is fixed on the propulsion vehicle 1 through the high-strength bolt mounting hole at the back of the lifting groove. The hydraulic jack 31 is installed at the bottom of the lifting groove and fixedly connected with the convex-shaped steel plate in the lifting groove, the hydraulic control device 32 is installed in a cab of the propulsion 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 belongs to the known content in the field, and the specific description is not provided here), so that the convex-shaped steel plate moves up and down in the lifting groove, the height of the turnover drying device 5 is further controlled, the working depth of the turnover drying device 5 is adjusted, and the adjustment range of the working depth is 0-0.6 m.

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 between the high-strength bolt and the common bolt are as follows: the common bolt connection transfers shearing force by means of pressure bearing and shearing resistance of the rod body, the pretension force generated by the bolt is small when the nut is screwed, and the influence is not considered; the working principle of high-strength bolt connection is that a large pretension force is intentionally applied to a bolt to generate extrusion force between contact surfaces of connected pieces, so that a large friction force is generated in a direction perpendicular to a screw rod, and a connection shearing force is transmitted by means of the friction force. The pretension force of the high-strength bolt is realized by screwing a nut, and the common high-strength bolt generally adopts a torque method and a corner method. The torsional shear type high-strength bolt adopts the torsional breaking of the tail part of the bolt to control the pretension force.

As shown in fig. 2, the connecting device 3 includes a first rectangular frame 16 and a second rectangular frame 17 vertically fixed on a bellows 21 in a longitudinal direction, the first rectangular frame 16 and the second rectangular frame 17 are parallel to each other and spaced apart from each other 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 disposed between the first rectangular frame 16 and the second rectangular frame 17, and four corners of the X-shaped steel pipe 20 are connected to upper and lower middle points of the first rectangular frame 16 and upper and lower middle points 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 fixed on at least one diagonal of the first rectangular frame 16 and the second rectangular frame 17, and forms at least two vector triangles with the first rectangular frame 16 and the second rectangular frame 17. The first steel plate 18 is fixed on the side of the first rectangular frame 16 away from the trunk 21, the second steel plate 19 is fixed on the side of the second rectangular frame 17 away from the trunk 21, and the larger surfaces of the first steel plate 18 and the second steel plate 19 face the propulsion vehicle 1. The first rectangular frame 16 and the second rectangular frame 17 are equal to the distance between the iron skin box 21 and one side close to the iron skin box, and the distance is 0.6m in the embodiment and can be set according to the actual engineering condition.

In addition, the first rectangular frame 16 and the second rectangular frame 17 are fixed on the iron sheet box 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 iron sheet box 21, and the first concave steel groove 14 and the second concave steel groove 15 are 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 tank 21 near the propelled vehicle 1 at a height 1/3 from the top thereof, and the second concave steel channel 15 is horizontally fixed to the side wall of the tank 21 at a height 2/3 from the top thereof.

To ensure the stability of the turning and drying device 5, the iron sheet box 21 and the gearbox 26 can be fixed on the steel tube support frame, and the plough blade 25 can be fixed at the bottom of the steel tube support frame and is far away from one side of the propulsion vehicle 1. Specifically, the steel tube support frame comprises a first square steel tube 8, a second square steel tube 9, a third square steel tube 10, a fourth square steel tube 11, a fifth square steel tube 12 and a sixth steel tube 13, wherein the fifth square steel tube 12 and the sixth steel tube 13 have the same specification and are parallel to each other, the first square steel tube 8, the second square steel tube 9, the third square steel tube 10 and the fourth steel tube 11 have the same specification and are parallel to each other, the first square steel tube 8 and the second square steel tube 9 are horizontally fixed at one end of the fifth square steel tube 12 and one end of the sixth steel tube 13 at a certain interval, the third square steel tube 10 and the fourth steel tube 11 are horizontally fixed at the other end of the fifth square steel tube 12 and the other end of the sixth steel tube 13, and the first square steel tube 8, the second square steel tube 9, the third square steel tube 10 and the fourth steel tube 11 are all perpendicular to the fifth square steel tube 12 and the sixth steel tube 13, more specifically, the first square steel pipe 8 and the second square steel pipe 9 are fixed inside the fifth square steel pipe 12 and the sixth steel pipe 13, the first square steel pipe 8 is flush with the end surface of the fifth square steel pipe 12, and the third square steel pipe 10 and the fourth square steel pipe 11 are fixed on the upper surfaces of the fifth square steel pipe 12 and the sixth 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 attached. The iron sheet box 21 is vertically fixed on a sub-frame formed by the second square steel tube 9, the fifth square steel tube 12 and the sixth square steel tube 13, the gearbox 26 is fixed on the sub-frame formed by the first square steel tube 8, the second square steel tube 9 and the fifth square steel tube 12, and the motor 28 is installed at one end, close to the gearbox 26, of the first concave steel groove 14. In the embodiment, the interval between the first square steel pipe 8 and the second square steel pipe 9 is 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 less than 0.4m, the bending moment of the fifth square steel pipe 12, the sixth square steel pipe 13, the first rectangular frame 16 and the second rectangular frame 17 is increased when the distance is more than 0.4m, the distance is matched with the size of the gearbox 26, and the distance can be adjusted according to the size of the actual gearbox 26. The plurality of plough blades 25 are all fixed at the bottom of the third square steel pipe 10 through the corresponding reversing devices, namely, two second connecting nuts 45 of each reversing device are installed at the bottom of the third square 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 of the first rectangular frame and the second rectangular frame 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 iron sheet box 21. The distance between the outer side wall of the fifth square steel pipe 12 and the outer side wall of the sixth steel pipe 13 is equal to the length of the iron box 21.

The propulsion vehicle 1 is a tractor and is connected with the lifting device 2 through a high-strength bolt, a vehicle hot air source 6 (an air conditioning system inside the propulsion vehicle 1) is arranged inside the propulsion vehicle, and when the maximum heating power of the overturning and drying device 5 cannot achieve the dehumidification effect, the vehicle hot air source 6 is turned on to perform auxiliary drying. Its bottom intermediate position department is equipped with hot air outlet and moisture content tester 7, and is concrete, and in order to be under construction, moisture content tester 7 can select the moisture content tester that has the display moisture content reading function to measure the moisture content of filler.

The iron sheet case 21 is of a cuboid structure, as shown in fig. 7, a rectangular frame is formed by boundary beams 43 in the iron sheet case, corner columns 44 are vertically fixed on four corner branches of the rectangular frame to form the cuboid frame, iron sheets wrap the rectangular frame, and rectangular steel pipes are adopted by the corner columns 44 and the boundary beams 43. As shown in fig. 8, the side wall of the trunk 21 close to the propulsion vehicle 1 and the bottom of the side wall opposite to the side wall are both provided with a trunk opening 35 with a height of 10cm, so as to improve the efficiency of the filling material entering and exiting the trunk, and the height of the trunk opening 35 can be set according to actual construction requirements and conditions.

The embodiment provides a use method of a highway embankment over-wet filler overturning and drying device, which comprises the following specific steps:

step S1: determining the controlled water content: measuring the optimal water content of the embankment filler by adopting a compaction test, and measuring the accumulated plastic deformation of the embankment filler with different water contents under the dynamic load loading condition by adopting a dynamic triaxial test to obtain the optimal water content of the high liquid limit embankment filler under the dynamic load; taking the average value +/-2% of the optimal water content obtained in the two experiments as the controlled water content of the embankment filler; the dynamic triaxial test is adopted to test that the confining pressure is 10kPa, the axial stress ratio is 1: and (3) the accumulated plastic deformation of the embankment filler with different water contents is 0.5 (the ratio of the main stress to the lateral stress of the triaxial sample, the lateral soil pressure coefficient is 0.5) and the dynamic stress amplitude is 50 kPa.

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

Step S2: determining construction parameters: and selecting a 20-30 m road section in the area to be constructed as a test road section, selecting the working depth of the overturning and drying device 5 according to the filling thickness of the embankment, and adjusting the stroke of a hydraulic jack 31 in the lifting device 2 so that the working depth of the overturning and drying device 5 meets the requirement. Setting a smaller driving speed and the output power of the motor 28, the fan 22 and the heating plate 23 to determine the working depth to carry out the overturning and drying test on the test road section, gradually adjusting the driving speed according to the reading of the water content tester 7 at the bottom of the propelled vehicle 1 and the output power of the motor 28, the fan 22 and the electric heating plate 23 to ensure that the water content of the processed soil body reaches the requirement of controlling the water content, and taking the driving 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 overturning and drying construction of the over-wet filler of the subsequent embankment.

The step S2 is to gradually adjust the traveling speed according to the reading of the moisture content tester 7 at the bottom of the propelled 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 over-wet filler is higher than the controlled water content, increasing the output power of the fan 22 and the electric heating plate 23 to continuously move forward for a certain distance at the previous traveling speed to process the embankment over-wet filler, then measuring the real-time water content of the embankment over-wet filler processed for the second time, if the measured real-time water content is still too high, continuously increasing the output power of the fan 22 and the electric heating plate 23 to process the embankment over-wet filler and measure the processed real-time water content of the embankment over-wet filler until the measured real-time water content is stabilized at the controlled water content; when the power of the fan 22 and the electric heating plate 23 is at the highest, and the measured real-time moisture content is still too high, the vehicle hot air source 6 is turned on, and the heating power is continuously increased; and if the measured real-time water content is lower than the controlled water content, increasing the vehicle speed to stabilize the water content value at the controlled water content.

Step S3: and (3) embankment construction: according to the construction parameters determined in the step S2, 200-300 m is taken as a construction section, the embankment over-wet filler is processed, the moisture content is measured every 5-10 m by the moisture content tester 7 at the bottom of the propulsion vehicle 1, after the processing is finished, the change curve of the moisture content is counted, and the change curve is compared with the control moisture content; and (3) carrying out secondary construction on the road section with the water content being more than the controlled water content after treatment, controlling the working direction of the plough blade 25 on the original traveling route of the vehicle and matching with the reverse rotation of the stirring wheel 24 to repeatedly stir and dry the over-wet filler until the controlled water content is achieved.

Because the distribution conditions of the soil in different road sections may change, which road sections are not successfully dehumidified can be known through the change curve of the water content through statistics, so that the subsequent construction can perform secondary treatment on the road sections which are not successfully dehumidified, and the water content of the whole road section is ensured to be stably controlled.

The embankment filler after the turning and drying treatment meets the optimal compaction requirement, and can be matched with engineering compaction machinery for embankment filling. The construction methods of airing and braising materials and the like can achieve the airing effect within about one week, the device can be pushed by the pushing vehicle 1 to directly process the over-wet filler, the construction road section with the length of 300-500 m can be processed per hour, the processed over-wet filler can be directly paved and compacted, the construction time is short, and the construction efficiency is high.

It is to be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The highway embankment overwet filler overturning and drying device is characterized by comprising a propelling vehicle (1), a power system (4) and an overturning and drying device (5), wherein the propelling vehicle (1) is mechanically connected with the overturning and drying device (5) to drive the overturning and drying device (5) to move and provide required electric energy for the overturning and drying device (5); the power system (4) is mechanically connected with the turning and drying device (5) and provides turning power for the turning and drying device (5);

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

2. The highway embankment overwet stuffing overturning and drying device according to claim 1, wherein the plow blade (25) is composed of a connecting rod (36), first connecting nuts (37), a first rotating shaft (38), toe plate connecting steel sheets (39), toe plates (40), a first baffle plate (41) and a second baffle plate (42), the first connecting nuts (37) are provided in two and are respectively installed 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 is respectively inserted into one first connecting nut (37) at two ends, the toe plates (40) are fixedly connected with the first rotating shaft (38) through the toe plate connecting steel sheets (39), and the first baffle plate (41) and the second baffle plate (42) are located at two sides of the toe plate connecting steel sheets (39) and are fixed on the surface of the first connecting nuts (37) at a certain included angle.

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

4. The highway embankment overwater and overwater device according to claim 3, wherein the toe plate (40) is parallel to the ground in the initial state, and the toe plate connecting steel sheet (39) and the toe plate (40) are perpendicular to each other;

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

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

third baffle (49) and fourth baffle (50) become 65 contained angles and fix the surface at two second connecting nut (45), and third baffle (49) become 45 contained angles with vertical face and fix the surface at two second connecting nut (45), and fourth baffle (50) become-20 contained angles with vertical face and fix the surface at two second connecting nut (45).

5. The highway embankment over-wet filler overturning and drying device according to any one of claims 1-4, wherein the number of the fans (22) is at least two and is uniformly arranged on the top of the iron box (21);

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

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

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

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

6. The highway embankment over-wet filler overturning and drying device according to claim 5, wherein the power system (4) is composed of a gearbox (26) and a motor (28), the motor (28) is electrically connected with a power supply on the propelling vehicle (1), the output end of the motor (28) is mechanically connected with the input end of the gearbox (26), and the output end of the gearbox (26) is mechanically connected with a rotating shaft of the overturning and stirring wheel (24);

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

the overturning and drying device (5) is connected with the propelling vehicle (1) in a lifting way through a 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); 1-3 lifting grooves with open tops and bottoms are arranged on the lifting auxiliary mechanism (30), and the number, the internal shape and the 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 to 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 moisture content tester (7) are arranged at the middle position of the bottom of the propulsion vehicle;

the lateral wall of the iron sheet box (21) close to the propelling vehicle (1) and the bottom of the lateral wall opposite to the lateral wall are provided with iron sheet box holes (35).

7. The highway embankment over-wet filler overturning and drying device according to claim 6, wherein the convex-shaped steel plate is fixedly connected with the iron box (21) through a connecting device (3), the connecting device (3) comprises 1-3 rectangular frames vertically fixed on the iron box (21) in the longitudinal direction, rectangular steel pipes forming at least two vector triangles with the rectangular frames are fixed at the diagonal line 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 certain intervals, and four corners of each X-shaped steel pipe (20) are correspondingly connected with the upper middle points and the lower middle points of the two adjacent rectangular frames one by one; one side of each rectangular frame, which is far away from the iron box (21), is fixed with a convex steel plate, and the bottom surfaces of the convex steel plates face the propulsion vehicle (1);

the rectangular frames are fixed on the iron sheet box (21) through a first concave steel groove (14) and a 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 which is far from the top 1/3 of the side wall, and the second concave steel groove (15) is horizontally fixed on the side wall of the iron box (21) at a position which is far from the top 2/3 of the side wall;

the turning and baking device (5) and the power system (4) are 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), 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), 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 attached;

the iron sheet box (21) is vertically fixed on a sub-frame consisting of 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 the sub-frame consisting of a first square steel pipe (8), the second square steel pipe (9) and the fifth square steel pipe (12), the motor (28) is installed at one end, close to the gearbox (26), of the first concave steel groove (14), the plough blade (25) is fixed at the bottom of the third square steel pipe (10) through the reversing device, namely, the two second connecting nuts (45) are installed at the bottom of the third square steel pipe (10).

8. The use method of the highway embankment over-wet filler overturning and drying device according to claim 6 or 7, which is characterized by comprising the following steps of:

step S2, determining construction parameters: the working depth of the overturning and drying device (5) is selected according to the filling thickness of the embankment, and then the stroke of a hydraulic jack (31) in the lifting device (2) is adjusted through a hydraulic control device (32), so that the working depth of the overturning and drying device (5) meets the requirement; selecting a test road section in a to-be-constructed area, and determining the driving speed of the embankment during the over-wet filler turning and drying construction and the output power of the motor (28), the fan (22) and the heating plate (23), namely determining construction parameters;

step S3, embankment construction: and (4) turning and drying the over-wet filler of the embankment according to the construction parameters determined in the step (S2), measuring the actual water content of the over-wet filler of the construction road section in real time by a water content tester (7) at the bottom of the propulsion vehicle (1), comparing the actual water content with the controlled water content, and performing secondary construction on the road section of which the processed water content is greater than the controlled water content.

9. The use method of the road embankment over-wet filler overturning and drying device according to claim 8, wherein the step S1 is implemented by using a three-axis dynamic test with a test confining pressure of 10kPa and an axial stress ratio of 1: 0.5, the dynamic stress amplitude is 50 kPa;

step S2, determining construction parameters, namely, preliminarily setting a smaller travelling speed and the output power of the motor (28), the fan (22) and the heating plate (23) to determine the working depth to carry out a turning and drying test on the test road section, then adjusting the travelling speed according to the reading of a moisture content tester (7) at the bottom of the propulsion vehicle (1), and adjusting the output power of the motor (28), the fan (22) and the electric heating plate (23) through power adjusting switches and motor speed regulators on the electric heating plate (23) and the fan (22) until the moisture content of the processed soil body reaches the requirement of controlling the moisture content;

and S3, performing secondary construction on the road section with the water content after treatment greater than the controlled water content, namely changing the working direction of the plough blade (25) and controlling the rotation direction of the stirring wheel (24) by matching the forward and backward movement of the propelling vehicle (1) through the movable fan-shaped block (48) on the original advancing route of the propelling vehicle (1), and performing reciprocating stirring and drying on the over-wet filler until the controlled water content is achieved.

10. The use method of the device for overturning and drying the over-wet filler of the highway embankment according to the claim 9 is characterized in that the concrete process of adjusting the driving speed and the output power of the motor (28), the fan (22) and the electric heating plate (23) according to the reading of the moisture content tester (7) at the bottom of the propelling vehicle (1) is as follows: if the real-time water content of the processed embankment over-wet 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 move forward at the previous driving speed for a certain distance to process the embankment over-wet filler, then the real-time water content of the embankment over-wet 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 over-wet filler and measure the real-time water content after processing 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, and the measured real-time moisture content is still too high, the vehicle hot air source (6) is turned on, and the heating power is continuously improved; and if the measured real-time water content is lower than the controlled water content, increasing the vehicle speed to stabilize the water content value at the controlled water content.