CN108103867A - A kind of hangar tunnel formula antiskid structure and construction method with roadnet - Google Patents

Abstract

A shed-cave anti-sliding structure with a road system and a construction method thereof, belonging to the technical field of road engineering, including an anti-sliding structure, a rectangular single-span grooved road slab, a slab wall and a shed surface protection structure; the anti-sliding structure is H-shaped , one end of the beam is integrally poured with the variable section of the second type of variable section anti-slide pile below, and the other end is connected with the pile body of the first type of variable section anti-slide pile above through a one-way sliding connection; The slab wall is stuck in the groove of the adjacent variable-section anti-slide pile; the rectangular single-span groove-shaped road slab is supported on the beam; the protective structure of the shed surface is elastically connected to the top of the anti-slide pile. The invention not only avoids a large amount of earthworks when building roads on the landslide body, but also solves the disturbance and harm to the road caused by the landslide body during operation; the structure is simple, safe and reliable, and has good economic effect.

Description

Shed-cave anti-skid structure with road system and construction method

technical field

The invention belongs to the technical field of road engineering, and in particular relates to the shed-cave anti-skid structure technology with a road system.

Background technique

In the engineering design of mountainous roads, due to the special terrain and geological environment, landslides are often encountered. Usually, avoidance measures are reasonably taken for landslides with greater hazards through program comparison and selection. However, if the cost of detour is too high after full program comparison and selection, it is advisable to consider landslide rectification. In the prior art, when building roads in landslide areas, landslides are generally treated first, and landslides are often treated by removing landslides, controlling surface water and groundwater, reducing weight and backpressure, and setting support structures. For large-scale landslides, the above-mentioned treatment measures require a large amount of construction, high cost, uneconomical and unreasonable. Therefore, roads using anti-slide piles to deal with landslides have appeared. For example, the patent application No. 201620242141.9 discloses a cantilevered structure road combined with h-type anti-slide piles to treat landslides, which avoids high filling and deep excavation on the landslide body, and greatly reduces the amount of filling and excavation. However, if the road and anti-slide piles are integrated, when the road surface is subjected to traffic loads, it will disturb the anti-slide piles below, which will affect the unstable soil layer on the landslide body and cause the unstable soil layer to slide. Such roads combined with anti-slide piles still have potential safety hazards. Moreover, the rolling stones on the landslide body will also have a great impact on road traffic, endangering the safety of personnel and causing economic losses.

Contents of the invention

The object of the present invention is to provide a shed cave type anti-skid structure with a road system and a construction method.

The present invention relates to a shed-cave anti-skid structure with a road system and a construction method. The shed-cave anti-skid structure with a road system includes an anti-skid structure, a rectangular single-span groove-shaped road panel 7, a board wall 4, Shed surface protection structure 8; the anti-sliding structure is H-shaped, and is composed of the first type variable cross-section anti-slide pile 1, the second type variable cross-section anti-slide pile 2, the beam 3 and the one-way sliding connection 5. The pile above the variable section of cross-section anti-slide pile 1 has a groove 11 on the two sides perpendicular to the road direction, and one end of beam 3 is poured integrally with the variable section of the second type variable cross-section anti-slide pile 2, The other end surface is connected with the pile body of the first type of variable cross-section anti-slide pile 1 through a one-way sliding connection 5, and the bottom surface of the beam 3 is connected with the variable cross section of the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2. The cross-sectional platform is on the same horizontal plane; the one-way sliding connection 5 is composed of a steel plate 15, a tooth groove 16, a pawl post 17, a pawl 18 and a rubber anti-collision block 19, and the tooth groove 16 and the pawl post 17 are respectively connected to a steel plate In the center of 15, the ratchet column 17 is inserted into the tooth groove 16 and the ratchet 18 and the tooth groove 16 are matched and nested. 15 is connected to the pile body of the first type of variable cross-section anti-slide pile 1, and the steel plate 15 connected with the pawl column 17 is connected to the center of the end face of the beam 3; the board wall 4 includes a roof wall 26, a middle board wall 27 and a bottom board wall 28 The mutual contact surfaces of the three types of board walls are respectively provided with rectangular protrusions 13 and rectangular grooves 14 along the longitudinal centerline, and the rectangular protrusions 13 of the lower board wall are embedded in the rectangular grooves 14 of the upper board wall, so that the three types of board walls are embedded in each other. The convex columns 12 at both ends of the slab wall 4 are inserted into the grooves 11 and connected to the adjacent first-type variable-section anti-slide piles 1; the rectangular single-span grooved road slab 7 is supported on the top of the beam 3 by the plate rubber bearing 6 surface; the shed surface protective structure 8 is composed of a square-shaped frame 21 welded by section steel and a steel wire protective net 22, the steel wire protective net 22 is fixed on the space top surface of the square-shaped frame 21, and the upper end of the shed surface protective structure 8 is supported by a rotating hinge 9 is welded with the embedded part 25 at the top of the first type of variable cross-section anti-slide pile 1, and the lower end is supported on the top of the second type of variable cross-section anti-slide pile 2 by a spring 10.

The construction method of the shed-cave type anti-skid structure with road system of the present invention, its steps are:

(1) Survey and design: Survey the engineering geological conditions and hydrometeorological conditions of the mountain, analyze and determine the position of the potential sliding surface, carry out calculation and design, and determine the height and spacing of piles;

(2) Prefabricated slab wall 4: make slab wall 4 in the factory according to the engineering design size, and transport it to the construction site;

(3) Construction pile hole: Determine the position of the anti-slide pile according to the construction drawing, excavate the pile holes of the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2, and construct the retaining wall;

(4) Construction of the first type variable cross-section anti-slide pile 1: hoisting and placing the anti-slide pile reinforcement cage, pouring the first type variable cross-section anti-slide pile 1;

(5) Construction of the second type of variable cross-section anti-slide pile 2: hoisting and placing the anti-slide pile reinforcement cage, pouring the second type of variable cross-section anti-slide pile 2, and reserving beam 3 reinforcement at the variable cross-section of the pile according to the construction drawing;

(6) Construction of slab wall 4: Excavate the earthwork between the adjacent first-type variable-section anti-slide piles 1, insert the prefabricated floor wall 28 into the groove 11 of the first-type variable-section anti-slide pile 1, Install the middle board wall 27 afterwards, make the rectangular protrusion 13 under the middle board wall 27 closely nest with the rectangular groove 14 of the bottom board wall 28, install the top board wall 26 at last, the rectangular protrusion 13 under the top board wall 26 and the middle board wall 27 The rectangular slots 14 are tightly nested;

(7) Excavation: Excavate the earth between the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2, and excavate to the variable cross-section of the variable cross-section anti-slide pile;

(8) Construction of crossbeam 3: Bind the steel bars of crossbeam 3 and connect with the reserved steel bars of the second type of variable cross-section anti-slide pile 2, set up the formwork and pour concrete in time;

(9) Install the one-way sliding connection 5: fix one end of the one-way sliding connection 5 to the variable section of the first type of variable-section anti-slide pile 1 with bolts, and fix the other end to the end face of the beam 3;

(10) Construction road system: Fasten the plate-type rubber support 6 to both ends of the top surface of the beam 3 with bolts, and the distance from the end of the beam 3 is 500-700 mm, and hoist the rectangular single-span grooved road panel 7 On the plate rubber bearing 6, fasten the top plate of the plate rubber bearing 6 and the bottom of the rectangular single-span grooved road slab 7 with bolts, and finally pave the pavement structure on the rectangular single-span grooved road slab 7;

(11) Construction shed hole: weld the Tian-shaped frame 21, and install the steel wire protective net 22 into the space of the Tian-shaped frame 21; weld the rotating hinge support 9 and the spring 10 to the four corners of the Tian-shaped frame 21 in the shed hole, hoist and install The shed hole Tian-shaped frame 21 is at the top of the anti-sliding pile, so that the rotating hinge support 9, the spring 10 and the embedded part 25 at the top of the pile are welded;

(12) Set up road baffles: Set up protective nets between adjacent second-type variable-section anti-slide piles.

The beneficial effects of the present invention are: (1) two types of anti-sliding piles are formed into an H-shaped anti-sliding structure through beams and one-way sliding connections, which increases the bending stiffness of the piles and can withstand larger thrusts of the slope body. Can carry out effective treatment; the ratchet column connected by one-way sliding can only move in one direction along the direction of force under the action of thrust, and when the anti-slide pile on the upper side of the slope is deformed to the foot of the slope, it will not affect the downward slope of the slope. The second type of variable cross-section anti-slide pile on the side and the pavement structure on it will have an impact. (2) The rectangular single-span grooved road slab is supported on the crossbeam by the plate rubber bearing, which can transfer the road surface load from the crossbeam to the anti-slide pile, and then directly transfer the anti-slide pile to the deep stable rock and soil layer, avoiding the impact of vehicles Disturbance of landslides. (3) Excavating part of the soil between the two types of anti-slide piles not only forms a shed-cave space structure for vehicles to pass through, but also reduces the load on the anti-slide structure of the slope soil, thereby increasing the anti-slide structure. stability of the slippery structure. (4) The protective structure of the shed surface is a combination of rigidity and flexibility. The section steel is welded into a rigid frame. The overall rigidity of the frame is large, and the bending bearing capacity is improved. The steel wire protection net is a flexible material, which can offset part of the impact of rolling stones on the protection net; The frame uses embedded parts to connect the anti-sliding structure into anti-sliding pile groups, which enhances the overall rigidity of the anti-sliding structure and reduces the deformation of the anti-sliding piles; at the same time, the inclined roof of the shed can also prevent rolling stones from accumulating on the protective net, avoiding In order to bring safety hazards to road traffic, it also reduces the cost of manual handling of rolling stones during later operation.

Description of drawings

Figure 1 is a schematic diagram of a shed-cave anti-skid structure with a road system, Figure 2 is a diagram of a shed-cave anti-skid structure with a road system, Figure 3 is a schematic diagram of the middle wall, and Figure 4 is a one-way sliding connection structure diagram, Fig. 5 is a structure diagram of shed surface protection. Reference signs and corresponding names are: the first type of variable cross-section anti-slide pile 1, the second type of variable cross-section anti-slide pile 2, beam 3, plate wall 4, one-way sliding connection 5, plate rubber bearing 6, rectangular single-span Grooved road slab 7, shed surface protective structure 8, rotating hinge support 9, spring 10, groove 11, convex post 12, rectangular bump 13, rectangular slot 14, steel plate 15, tooth groove 16, pawl post 17, Pawl 18, rubber anti-collision block 19, bolt hole 20, Tian-shaped frame 21, steel wire protective net 22, rotating shaft 23, shaft housing 24, embedded parts 25, top wall 26, middle wall 27, bottom wall 28, Fixed circular hole 29.

Detailed ways

The features of the present invention will be further described below in conjunction with accompanying drawings and a kind of shed cave type anti-sliding structure example with road system, given examples are only used to explain the present invention, and are not intended to limit the scope of the present invention. After reading the present invention, within the spirit and principle of the present invention, any modification, equivalent replacement and improvement should be included in the protection scope of the present invention.

As shown in Figures 1 to 5, the present invention is a shed-cave anti-skid structure with a road system and a construction method, including an anti-skid structure, a rectangular single-span grooved road panel 7, a board wall 4, and a shed surface protection structure 8; It is characterized in that: the shape of the anti-sliding structure is H-shaped, which is composed of the first type variable cross-section anti-slide pile 1, the second type variable cross-section anti-slide pile 2, the beam 3 and the one-way sliding connection 5, the first type variable The pile above the variable section of cross-section anti-slide pile 1 has a groove 11 on the two sides perpendicular to the road direction, and one end of beam 3 is poured integrally with the variable section of the second type variable cross-section anti-slide pile 2, The other end surface is connected with the pile body of the first type of variable cross-section anti-slide pile 1 through a one-way sliding connection 5, and the bottom surface of the beam 3 is connected with the variable cross section of the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2. The cross-sectional platform is on the same horizontal plane; the one-way sliding connection 5 is composed of a steel plate 15, a tooth groove 16, a pawl post 17, a pawl 18 and a rubber anti-collision block 19, and the tooth groove 16 and the pawl post 17 are respectively connected to a steel plate 15 in the center, the ratchet post 17 is inserted into the tooth groove 16 and the ratchet 18 and the tooth groove 16 are matched and nested. 15 is connected to the pile body of the first type of variable cross-section anti-slide pile 1, and the steel plate 15 connected with the pawl column 17 is connected to the center of the end face of the beam 3; the board wall 4 includes a roof wall 26, a middle board wall 27 and a bottom board wall 28 The mutual contact surfaces of the three types of board walls are respectively provided with rectangular protrusions 13 and rectangular grooves 14 along the longitudinal centerline, and the rectangular protrusions 13 of the lower board wall are embedded in the rectangular grooves 14 of the upper board wall, so that the three types of board walls are embedded in each other. The convex columns 12 at both ends of the slab wall 4 are inserted into the grooves 11 and connected to the adjacent first-type variable-section anti-slide piles 1; the rectangular single-span grooved road slab 7 is supported on the top of the beam 3 by the plate rubber bearing 6 surface; the shed surface protective structure 8 is composed of a square-shaped frame 21 welded by section steel and a steel wire protective net 22, the steel wire protective net 22 is fixed on the space top surface of the square-shaped frame 21, and the upper end of the shed surface protective structure 8 is supported by a rotating hinge 9 is welded with the embedded part 25 at the top of the first type of variable cross-section anti-slide pile 1, and the lower end is supported on the top of the second type of variable cross-section anti-slide pile 2 by a spring 10.

As shown in Figures 1 and 2, the beam 3 of the anti-sliding structure, the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2 are all rectangular, and are poured by reinforced concrete; the piles below the variable cross-section The cross-sectional size is 2500-4000mm in length and 1500-3000mm in width; the inner distance between the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2 is 10000-12000mm, and the axes of adjacent similar anti-slide piles The center distance is 5000-7000mm; the section size of the beam 3 is 1000-1200mm high and 600-800mm wide; the groove 11 is located at the center line of the side of the pile above the variable section of the variable section anti-slide pile 1 of the first type.

As shown in Figure 2, the bottom surface of the groove 11 is on the same level as the variable section of the first type of variable cross-section anti-slide pile 1, and the top surface is flush with the top surface of the first type of variable cross-section anti-slide pile 1; the groove The cross-sectional shape of 11 is T-shaped, which is composed of an outer rectangular section and an inner rectangular section; the outer rectangular section of the groove 11 is 300-400 mm wide and 250-350 mm deep, and the inner rectangular section is 200-300 mm wider than the outer rectangular section , The depth is 300~400mm.

As shown in Figures 1 and 2, the length of the rectangular single-span grooved road slab 7 is the same as the distance between the cores of adjacent similar anti-slide piles, and the width is wider than that of the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile. The inner spacing of the slide piles 2 is 1000-1500mm smaller.

As shown in Figure 4, the inner wall of the tooth groove 16 of the one-way sliding connection 5 has two rows of one-way teeth, and the shape of the one-way teeth is a right-angled trapezoid; , the ratchet 18 is matched with the unidirectional teeth in the tooth groove 16, and the ratchet 18 is embedded in the tooth groove 16, and the length of the tooth groove 16 is the same as that of the ratchet post 17.

As shown in Figures 2 and 3, the board wall 4 includes a top board wall 26, a middle board wall 27 and a bottom board wall 28; The spacing of sliding piles 1 is equal; the convex column 12 is located at the center of both ends of the board wall 4, and the cross-sectional size of the convex column 12 is the same as that of the groove 11; the lower end surface of the bottom wall 28 is straight, and there is a rectangular bump at the center of the upper end surface 13, the lower surface of the middle plate wall 27 has a rectangular groove 14 matching with the rectangular projection 13, the upper surface has a rectangular projection 13, the lower surface of the roof wall 26 has a rectangular groove 14, and the upper surface is straight.

As shown in Figures 2 and 3, the rectangular protrusion 13 and the rectangular groove 14 are located at the center of the end face, the cross-sectional size is 100-200 mm wide, 50-100 mm high, and the length is the same as that of the board wall 4 .

As shown in Figure 5, the Tian-shaped frame 21 is welded by 40-50# I-shaped steel ends, and the upper flange of the I-shaped steel around the space of the Tian-shaped frame 21 has a fixed round hole 29 parallel to the I-shaped steel. , The diameter of the fixed circular hole 29 is 5-7 mm, the distance is 50-60 mm, and the distance between the center of the fixed circular hole 29 and the edge of the flange is 25-30 mm.

As shown in Figure 5, the steel wire protective net 22 is woven by steel wire, and the steel wire passes through the fixed round hole 29 and is fixed on the I-shaped steel flange of the Tian-shaped frame 21, and the diameter of the steel wire is 1 to 2 mm smaller than the diameter of the fixed round hole 29 .

The shed cave type anti-skid structure and construction method with road system of the present invention, its steps are:

(1) Survey and design: Survey the engineering geological conditions and hydrometeorological conditions of the mountain, analyze and determine the position of the potential sliding surface, carry out calculation and design, and determine the height and spacing of piles;

(2) Prefabricated slab wall 4: make slab wall 4 in the factory according to the engineering design size, and transport it to the construction site;

(3) Construction pile hole: Determine the position of the anti-slide pile according to the construction drawing, excavate the pile holes of the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2, and construct the retaining wall;

(4) Construction of the first type variable cross-section anti-slide pile 1: hoisting and placing the anti-slide pile reinforcement cage, pouring the first type variable cross-section anti-slide pile 1;

(5) Construction of the second type of variable cross-section anti-slide pile 2: hoisting and placing the anti-slide pile reinforcement cage, pouring the second type of variable cross-section anti-slide pile 2, and reserving beam 3 reinforcement at the variable cross-section of the pile according to the construction drawing;

(6) Construction of slab wall 4: Excavate the earthwork between the adjacent first-type variable-section anti-slide piles 1, insert the prefabricated floor wall 28 into the groove 11 of the first-type variable-section anti-slide pile 1, Install the middle board wall 27 afterwards, make the rectangular protrusion 13 under the middle board wall 27 closely nest with the rectangular groove 14 of the base board wall 28, install the top board wall 26 at last, the rectangular protrusion 13 under the top board wall 26 and the middle board wall 27 The rectangular slots 14 are tightly nested;

(7) Excavation: Excavate the earth between the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2, and excavate to the variable cross-section of the variable cross-section anti-slide pile;

(8) Construction of crossbeam 3: Bind the steel bars of crossbeam 3 and connect with the reserved steel bars of the second type of variable cross-section anti-slide pile 2, set up the formwork and pour concrete in time;

(9) Install the one-way sliding connection 5: fix one end of the one-way sliding connection 5 to the variable section of the first type of variable-section anti-slide pile 1 with bolts, and fix the other end to the end face of the beam 3;

(10) Construction road system: Fasten the plate-type rubber support 6 to both ends of the top surface of the beam 3 with bolts, and the distance from the end of the beam 3 is 500-700 mm, and hoist the rectangular single-span grooved road panel 7 On the plate rubber bearing 6, fasten the top plate of the plate rubber bearing 6 and the bottom of the rectangular single-span grooved road slab 7 with bolts, and finally pave the pavement structure on the rectangular single-span grooved road slab 7;

(11) Construction shed hole: weld the Tian-shaped frame 21, and install the steel wire protective net 22 into the space of the Tian-shaped frame 21; weld the rotating hinge support 9 and the spring 10 to the four corners of the Tian-shaped frame 21 in the shed hole, hoist and install The shed hole Tian-shaped frame 21 is at the top of the anti-sliding pile, so that the rotating hinge support 9, the spring 10 and the embedded part 25 at the top of the pile are welded;

(12) Set up road baffles: Set up protective nets between adjacent second-type variable-section anti-slide piles.

The technical principle of the present invention is: (1) Principle of anti-sliding and vertical force transmission: the anti-sliding structure is composed of the first type of variable cross-section anti-slide pile, the second type of variable cross-section anti-slide pile, a beam and a one-way sliding connection. H-shaped structure, rectangular single-span grooved road slab is located on the top of the beam; two types of anti-slide piles are inserted into the stable soil layer below the sliding surface, on the one hand, when the landslide body deforms under the action of gravity or other external factors Or when slipping, the resistance of the stable soil layer to the pile can balance the load caused by the deformation of the landslide body; on the other hand, when the gravity of the road slab and the traffic load on the road surface act on the beam, the two ends of the beam The force is transmitted to the pile body below the variable section, and finally the force is transmitted to the stable soil layer. (2) Unloading principle: According to the principle of active earth pressure, the self-weight of the soil will generate a horizontal load on the retaining structure, and excavating part of the soil can reduce the self-weight of the soil, thereby reducing the load. (3) The principle of shed-cave: The shed surface is set up on the top of the two types of anti-slide piles, forming a shed-cave space structure; When the rolling stone falls on the shed surface, it will produce an impact load on the shed surface. The steel wire mesh and spring support on the shed surface can produce large elastic deformation. According to Newton's second and third laws, elastic deformation can significantly reduce the impact of rolling stones on the shed. Surface impact load.

Claims (10)

1. A shed-cave anti-skid structure with a road system, including an anti-slip structure, a rectangular single-span grooved road slab (7), a board wall (4), and a shed surface protective structure (8), characterized in that: The shape of the anti-sliding structure is H-shaped, which is composed of the first type variable cross-section anti-slide pile (1), the second type variable cross-section anti-slide pile (2), the beam (3) and the one-way sliding connection (5). The pile above the variable section of the class variable section anti-slide pile (1) has a groove (11) on the two sides perpendicular to the road direction, and one end of the beam (3) is connected to the second type variable section anti-slide pile. The variable section of (2) is integrally poured, and the other end face is connected to the pile body of the first type of variable section anti-slide pile (1) through a one-way sliding connection (5), and the bottom surface of the beam (3) is connected to the first type of variable section anti-sliding pile. The anti-sliding pile (1) and the variable-section platform of the second type of variable-section anti-sliding pile (2) are on the same horizontal plane; the one-way sliding connection (5) is composed of a steel plate (15), a tooth groove (16), and a pawl column (17), ratchet (18) and rubber anti-collision block (19), tooth groove (16) and ratchet column (17) are respectively connected to the center of a steel plate (15), and ratchet column (17) is inserted into the tooth groove (16) and the ratchet (18) is nested with the tooth groove (16), and the two rubber anti-collision blocks (19) are respectively fixed on the two steel plates (15) in front of each other, and the tooth groove (16) is connected. The steel plate (15) is connected to the pile body of the first type variable cross-section anti-slide pile (1), and the steel plate (15) connected with the pawl column (17) is connected to the center of the end face of the beam (3); the plate wall (4) Including the top panel wall (26), the middle panel wall (27) and the bottom panel wall (28), the mutual contact surfaces of the three types of panel walls are respectively provided with rectangular protrusions (13) and rectangular grooves (14) along the longitudinal centerline, the lower The rectangular protrusions (13) of the board wall are embedded in the rectangular grooves (14) of the upper board wall, so that the three types of board walls are nested and assembled, and the protrusions (12) at both ends of the board wall (4) are inserted into the grooves (11) and The adjacent first-type variable-section anti-slide piles (1) are assembled and connected; the rectangular single-span grooved road slab (7) is supported on the top surface of the beam (3) through the plate rubber bearing (6); the shed surface protection structure (8 ) is composed of a Tian-shaped frame (21) welded by section steel and a steel wire protective net (22). The steel wire protective net (22) is fixed on the top surface of the space of the Tian-shaped frame (21). The rotating hinge support (9) is welded to the embedded part (25) on the top of the first type of variable cross-section anti-slide pile (1), and the lower end is supported on the top of the second type of variable cross-section anti-slide pile (2) by a spring (10). 2. The shed-cave anti-sliding structure with road system according to claim 1, characterized in that: the beam (3) of the anti-sliding structure and the first type variable cross-section anti-sliding pile (1) and The second type of variable cross-section anti-slide piles (2) are all rectangular and poured with reinforced concrete; the groove (11) is located at the center line of the side of the pile body above the variable cross section of the first type of variable cross-section anti-slide pile (1). 3. The shed-cave anti-sliding structure with road system according to claim 1 or 2, characterized in that: the bottom surface of the groove (11) and the first type of variable cross-section anti-sliding pile (1) The variable section is on the same horizontal plane, and the top surface is flush with the top surface of the uphill variable section anti-slide pile (1); the groove (11) has a T-shaped section and is composed of an outer rectangular section and an inner rectangular section; The inner rectangular section of the groove (11) is wider than the outer rectangular section. 4. The shed-cave anti-sliding structure with road system according to claim 1, characterized in that: the length of the rectangular single-span grooved road slab (7) and the distance between the cores of adjacent similar anti-sliding piles Same, the width is smaller than the internal spacing of the first type of variable cross-section anti-slide pile (1) and the second type of variable cross-section anti-slide pile (2). 5. The shed-cave anti-skid structure with road system according to claim 1, characterized in that: the inner wall of the tooth groove (16) of the one-way sliding connection (5) has two rows of one-way teeth , the one-way tooth shape is a right-angled trapezoid; the pawl post (17) is a cuboid, with a pawl (18) on its two sides, and the pawl (18) is matched with the one-way tooth in the tooth groove (16) , and the ratchet (18) is embedded in the tooth groove (16), and the length of the tooth groove (16) is the same as that of the ratchet column (17). 6. The shed-cave anti-skid structure with road system according to claim 1, characterized in that: the height of the board wall (4) is equal to the height of the groove (11), and the length is the same as the first The intervals of variable cross-section anti-slide piles (1) are equal; the convex column (12) is located at the center of the two ends of the slab wall (4), and the section size of the convex column (12) is the same as that of the groove (11); the bottom slab wall ( 28) has a straight lower end face, a rectangular bump (13) at the center of the upper end face, a rectangular groove (14) matching the rectangular bump (13) on the lower end face of the middle wall (27), and a rectangular groove (14) on the upper end face. Projection (13), the lower end face of roof wall (26) has rectangular groove (14), and the upper end face is straight. 7. A shed-cave anti-skid structure with a road system according to claim 1, characterized in that: said rectangular bumps (13) and rectangular grooves (14) are located on the board wall (4) At the center of the mutual contact surfaces, the length of the rectangular protrusion (13) is the same as that of the board wall (4). 8. The shed-cavity anti-skid structure with road system according to claim 1, characterized in that: said Tian-shaped frame (21) is welded by I-shaped steel ends, and the Tian-shaped frame (21 ) width is the same as the center distance between the first type anti-slide piles (1) and the second type anti-slide piles (2), and the length is the same as the distance between the adjacent anti-slide piles of the same kind; the field-shaped frame (21 ) The upper flange of the I-beam around the space has a fixed circular hole (29) parallel to the I-beam. 9. The shed-cave anti-skid structure with road system according to claim 1, characterized in that: the steel wire protective net (22) is braided by steel wire, and the steel wire passes through the fixed round hole (29) Be fixed on the I-beam flange of the square frame (21), and the steel wire diameter is less than the diameter of the fixed circular hole (29). 10. A shed-cave anti-skid structure and construction method with a road system, characterized in that the steps are: (1) Survey and design: Survey the engineering geological conditions and hydrometeorological conditions of the mountain, analyze and determine the position of the potential sliding surface, carry out calculation and design, and determine the height and spacing of piles; (2) Prefabricated panel wall (4): Fabricate the panel wall (4) in the factory according to the engineering design size, and transport it to the construction site; (3) Construction pile holes: Determine the position of the anti-slide piles according to the construction drawings, excavate the pile holes of the first type of variable cross-section anti-slide piles (1) and the second type of variable cross-section anti-slide piles (2), and use them as retaining walls ; (4) Construction of the first type variable cross-section anti-slide pile (1): hoisting and placing the anti-slide pile reinforcement cage, pouring the first type variable cross-section anti-slide pile (1); (5) Construction of the second type variable cross-section anti-slide pile (2): hoisting and installing the anti-slide pile reinforcement cage, pouring the second type variable cross-section anti-slide pile (2), and reserving a beam at the variable cross-section of the pile according to the construction drawing (3) Steel bars; (6) Slab wall (4) Construction: Excavate the earthwork between adjacent first-type variable-section anti-slide piles (1), insert the prefabricated floor wall (28) into the first-type variable-section anti-slide pile ( 1) in the groove (11), and then install the middle wall (27), so that the rectangular protrusion (13) under the middle wall (27) is closely nested with the rectangular groove (14) of the bottom wall (28), Finally, the roof wall (26) is installed, and the rectangular projection (13) under the roof wall (26) is tightly nested with the rectangular groove (14) of the middle wall (27); (7) Excavation: Excavate the earth between the first type of variable cross-section anti-slide pile (1) and the second type of variable cross-section anti-slide pile (2), and excavate to the variable cross-section of the variable cross-section anti-slide pile; (8) Beam (3) construction: Bind the steel bar of the beam (3) and connect it with the reserved steel bar of the second type of variable cross-section anti-slide pile (2), set up the formwork and pour concrete in time; (9) Install the one-way sliding connection (5): Fix one end of the one-way sliding connection (5) to the variable section of the first type variable-section anti-slide pile (1) with bolts, and fix the other end to the beam (3) at the end face; (10) Construction road system: Fasten the plate rubber support (6) to both ends of the top surface of the beam (3) with bolts, and the distance from the end of the beam (3) is 500-700 mm, and place the rectangular single-span groove The type road panel (7) is hoisted and installed on the plate rubber support (6), and the top plate of the plate rubber support (6) and the bottom of the rectangular single-span groove type road panel (7) are fastened with bolts, and finally the rectangular single-span groove Laying the pavement structure on the cross-trough road slab (7); (11) Construction shed hole: Weld the Tian-shaped frame (21), and install the steel wire protective net (22) into the space of the Tian-shaped frame (21); weld the rotating hinge support (9), spring (10) on the The four corners of the shed-shaped frame (21) are hoisted and placed on the top of the anti-slide pile, so that the rotating hinge support (9), spring (10) and the embedded part (25) on the top of the pile are welded ; (12) Set up road baffles: Set up protective nets between adjacent second-type variable-section anti-slide piles.