A greening protection structure for highway slope

Abstract

The present invention belongs to the field of slope protection technology, especially a greening protection structure for highway slopes. In view of the problem that the fixed concrete grid in the prior art will be suspended due to heavy rain erosion, the following scheme is proposed, including an overall M-shaped structure concrete precast member, the overall concrete precast member includes two mutually symmetrical top corners and a bottom corner located in the middle and bent downward, and the back of the concrete precast member is provided with hinge holes near the two top corners, and coaxially distributed cross pin holes are provided on both sides of the hinge hole. A tensioning mechanism is hinged in the hinge hole, and the tensioning mechanism includes a fixed ear plate hinged in the hinge hole. The present invention can not only realize the connection of two adjacent concrete precast members, but also the two adjacent concrete precast members can settle with the settlement of the ground at the pressed position, so they will always be pressed against the ground, which will always play a good role in preventing soil erosion.

Description

Technical Field

[0001] The invention relates to the technical field of slope protection, and in particular to a greening protection structure for a highway slope. Background Art

[0002] In order to ensure the stability of the highway roadbed, slopes with a certain slope are often made on both sides of the highway, namely the highway slopes. After the highway slopes are subjected to the impact of rainwater for a long time, the rainwater is not easy to drain, resulting in loose slope soil, which can easily cause slope collapse, which is extremely harmful.

[0003] After searching, it is found that the prior art often adopts a more complicated method of laying steel cages on the slope surface, and then pouring concrete in a grid-like shape to make ribs to protect the slope. This protection method has a long construction period in the later stage, and with the passage of time, the surface will be uneven due to rain erosion. Since the frames are rigidly connected, the grid will be suspended, which will cause further aggravation of soil erosion. Therefore, this type of protective structure cannot change with the undulations of the surface. Summary of the invention

[0004] In view of the technical problem that the fixed concrete grid in the prior art may be suspended due to heavy rain erosion, the present invention adopts the following technical solution:

[0005] A greening protection structure for the slope of a highway comprises a precast concrete part with an overall M-shaped structure, wherein the precast concrete part comprises two mutually symmetrical top corners and a bottom corner bent downward in the middle, hinge holes are provided on the back of the precast concrete part near the two top corners, and coaxially distributed transverse pin holes are provided on both sides of the hinge holes, a tensioning mechanism is hinged in the hinge holes, and the tensioning mechanism comprises a fixed ear plate hinged in the hinge holes, a plug hole matched with the transverse pin hole is provided in the middle of the side surface of the fixed ear plate, and the same plug rod is plugged in the plug hole and the transverse pin hole; an H-shaped steel plug rod is welded to the end of the fixed ear plate away from the hinge hole; mutually symmetrical L-shaped connecting grooves are provided on the lower surfaces of both ends of the precast concrete part, and through holes connected to the upper surface of the precast concrete part are provided at the bottom of the L-shaped connecting grooves; a U-shaped connector is clamped in one of the L-shaped connecting grooves, and the connecting member is connected to the When the two devices are connected, only one U-shaped connector is needed to form a docking connection; and two symmetrical screws are fixed on the upper surface of the U-shaped connector, one of which passes through the through hole on the side and is screwed with a self-locking nut; by arranging a tensioning mechanism hinged on the lower surface of the precast concrete part, before installation, a hole can be drilled at the top corner position of the slope surface close to the precast concrete part, and then the tensioning mechanism is driven into the drilled hole, and then the tensioning mechanism and the precast concrete part can be connected by the pin hole; finally, the two adjacent precast concrete parts are chain-connected by the U-shaped connector; this connection method can not only realize the connection of the two adjacent precast concrete parts, but also the two adjacent precast concrete parts can settle with the settlement of the ground at the pressed position because they are chain-connected, so they will always be pressed against the ground, which will play a good role in preventing soil erosion on the ground.

[0006] Preferably, the H-shaped steel rod comprises two wing plates parallel to each other, and an intermediate web plate perpendicular to the wing plates is fixed between the two wing plates, and mutually symmetrical hinged base plates are fixed on both sides of the intermediate web plate, and folding pull rods are hinged on the sides of the hinged base plates; a pointed head is provided at one end of the H-shaped steel rod away from the fixed ear plate, and two symmetrical barbed rods are rotatably connected to the ends of the two wing plates of the H-shaped steel rod close to the pointed head, and a rectangular groove is provided on one side of the barbed rod close to the intermediate web plate, and the other end of the folding pull rod is hinged at the bottom of the rectangular groove; by means of a folding pull rod.

[0007] Preferably, mutually symmetrical soil retaining cones are fixed to the ends of both sides of the middle web near the pointed head, and a hinge axis parallel to the middle web is inserted at the end of the barbed rod near the pointed head, and a plug-in axis hole matched with the hinge axis is opened on the wing plate; the end of the soil retaining cone away from the pointed head is larger than the width and thickness of the barbed rod, so as to reduce the penetration of broken soil into the rectangular groove at the beginning of drilling, ensuring that the folding pull rod can be normally unfolded later.

[0008] Preferably, the folding pull rod is entirely hidden in the rectangular groove after being folded, and the outer side surfaces of the two barbed rods after being folded do not exceed the surface where the edges of the wing plates are located; this can reduce the resistance of the H-shaped steel rod when initially inserted into the drill hole.

[0009] Preferably, an outer head is reserved at the end of the barbed rod away from the pointed head, and the bending direction of the outer head is away from one end of the middle web; by providing the outer heads that are bent outward on both sides, it can be easier to unfold the barbed rod when it is needed, and it can be done by manually extending a rod from the hole to ram, or by directly injecting high-pressure cement slurry to impact.

[0010] Preferably, convex ridges are reserved at the top of the two top corners of the precast concrete part, and grouting holes are opened at the top of the convex ridges and are vertically connected to the hinge holes. Through the set grouting holes, paint or cement slurry can be added from the top of the grouting holes after installation and connection to protect the exposed fixed ear plates and prevent rust and corrosion from damaging the joint position.

[0011] Preferably, a fence climbing frame with an overall M-shaped structure is fixed to the upper surface of the precast concrete part; through the arranged fence climbing frame, vine-like vegetation can be planted in the slope protection cells when in use, thereby providing wind protection, reducing the surface wind speed, and reducing the probability of soil being blown away by the wind.

[0012] Preferably, a vertical shallow groove 1 is provided at the middle corner of the upper surface of the precast concrete part, and a deep groove 2 of equal width is provided near the bottom of the shallow groove 1; symmetrical combination grooves 1 are provided at both ends of the upper surface of the precast concrete part, and a combination groove 2 deeper than the combination groove 1 is provided near the bottom of the combination groove 1; by providing the stepped shallow groove 1 and deep groove 2, all rainwater accumulated on the top of the precast concrete part can be guided to the corner for discharge during use, so as to facilitate centralized treatment.

[0013] Preferably, the groove bottoms of the combined groove 2 and the deep groove 2 are respectively provided with an arc groove and an arc groove near the top, the length of the arc groove is equal to half of the arc groove, and a water guide plate with an overall fan-shaped structure is clamped in the arc groove, and an extension plate matching the width and thickness of the deep groove 2 is reserved at the top of the water guide plate, and a sliding hole coaxial with the arc groove is opened on the side of the extension plate, and a compression spring is slidably connected inside the sliding hole, and round rod heads are fixed at both ends of the compression spring; positioning countersunk holes matching the round rod heads are opened at one end of the arc groove and the side walls at both ends of the arc groove; by setting the positioning countersunk holes and round rod heads, the water guide plate can be tightly clamped in the drainage position, so that the collected water in the previous cell can be dispersed to the surface of the next cell to prevent the formation of ditches.

[0014] Preferably, water retaining strips are fixed to the upper surface of the water guide plate near both side edges, which can prevent water from falling near the contact between the precast concrete parts and the ground, thereby causing scouring and suspension, thereby protecting the soil near the precast concrete parts.

[0015] The beneficial effects of the present invention are:

[0016] 1. The two precast concrete parts can be connected in a chain by using the U-shaped connector. This connection method can not only realize the connection between two adjacent precast concrete parts, but also because the two adjacent precast concrete parts are connected in a chain, they can settle with the settlement of the ground at the pressed position, so they will always be pressed against the ground, which will play a good role in preventing water and soil loss on the ground.

[0017] 2. By setting up a tensioning mechanism with a barbed rod, after the entire tensioning mechanism is inserted into the drilled hole, high-pressure cement slurry can be injected into the hole. As the cement slurry impacts the barbed rod, the two folding pull rods will be tightened and straightened. At that time, the barbed rods on both sides of the H-shaped steel plug will also unfold, forming an inverted anti-slip effect, thereby improving the anti-slip tensioning effect of the tensioning mechanism.

[0018] 3. By setting the positioning countersunk holes and round rod heads, the water guide plate can be tightly clamped in the drainage position, so that the collected water in the previous cell can be dispersed to the surface of the next cell to prevent the formation of ditches. With the setting of the water guide plate, the collected water in the previous cell can be discharged far away from the contact point between the prefabricated concrete parts and the ground, thereby causing scouring suspension and preventing secondary scouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a single module in the present invention;

[0020] Figure 2 This is a schematic diagram of a three-dimensional structure of a single module in the present invention when viewed from above;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the tensioning mechanism in the present invention;

[0022] Figure 4 It is a schematic diagram of two barbed rods in the tensioning mechanism of the present invention in an expanded state;

[0023] Figure 5 It is a schematic diagram of the back three-dimensional structure of the concrete prefabricated part in the present invention;

[0024] Figure 6 It is a schematic diagram of the front three-dimensional structure of the concrete prefabricated part in the present invention;

[0025] Figure 7 It is an exploded view of the water guide plate in the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the U-shaped connecting piece in the present invention;

[0027] Fig. 9 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0028] In the figure: 1, prefabricated concrete part; 101, convex edge; 2, fence climbing frame; 3, self-locking nut; 4, screw; 5, shallow groove 1; 6, water guide plate; 601, water retaining strip; 602, extension plate; 603, sliding hole; 604, round rod head; 605, compression spring; 7, combination groove 1; 701, combination groove 2; 8, barbed rod; 801, outer head; 802, rectangular groove; 8 03, hinged shaft; 9, H-shaped steel plug rod; 901, fixed ear plate; 902, plug-in shaft hole; 10, cross pin hole; 11, grouting hole; 12, hinged hole; 13, U-shaped connector; 14, folding pull rod; 141, hinged base plate; 15, retaining cone; 16, L-shaped connecting groove; 17, arc-shaped slot; 18, deep slot 2; 19, through hole; 20, arc-shaped slot; 21, positioning countersunk hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-9A greening protection structure for a highway slope includes a precast concrete part 1 in an M-shaped structure. The precast concrete part 1 includes two symmetrical top corners and a bottom corner bent downward in the middle. A hinge hole 12 is provided on the back of the precast concrete part 1 near the two top corners, and coaxially distributed transverse pin holes 10 are provided on both sides of the hinge hole 12. A tensioning mechanism is hinged in the hinge hole 12, and the tensioning mechanism includes a fixed part hinged in the hinge hole 12. The ear plate 901 has a plug hole in the middle of the side of the fixed ear plate 901, which is matched with the horizontal pin hole 10, and the same plug rod is inserted in the plug hole and the horizontal pin hole 10; an H-shaped steel plug rod 9 is welded to the end of the fixed ear plate 901 away from the hinge hole 12; the lower surfaces of both ends of the concrete precast part 1 are respectively provided with mutually symmetrical L-shaped connecting grooves 16, and the bottom of the L-shaped connecting grooves 16 are provided with through holes 19 connected to the upper surface of the concrete precast part 1; a U-shaped connecting groove 16 is clamped in one of the L-shaped connecting grooves 16. shaped connector 13, when docking, only one U-shaped connector 13 is needed between two devices to form docking; and two symmetrical screws 4 are fixed on the upper surface of the U-shaped connector 13, one of which passes through the through hole 19 on the side and is screwed with a self-locking nut 3; by setting a tensioning mechanism hinged on the lower surface of the precast concrete part 1, before installation, the top angle position of the slope surface close to the precast concrete part 1 can be drilled first, and then the tensioning mechanism is driven into the drilled hole, and then the tensioning mechanism and the precast concrete part 1 can be connected by the pin hole; finally, the two adjacent precast concrete parts 1 are connected in a chain by the U-shaped connector 13; this connection method can not only realize the connection of the two adjacent precast concrete parts 1, but also the two adjacent precast concrete parts 1 can settle with the settlement of the ground at the pressed position due to the chain connection, so they will always be pressed against the ground, which will play a good role in preventing soil erosion on the ground.

[0031] Reference Figure 3-Figure 4 The H-shaped steel plug rod 9 includes two wing plates parallel to each other, and an intermediate web plate perpendicular to the wing plates is fixed between the two wing plates, and mutually symmetrical hinged base plates 141 are fixed on both sides of the intermediate web plate, and folding pull rods 14 are hinged on the sides of the hinged base plate 141; a pointed head is provided at one end of the H-shaped steel plug rod 9 away from the fixed ear plate 901, and the two wing plates of the H-shaped steel plug rod 9 are rotatably connected to one end of the pointed head with two mutually symmetrical barbed rods 8, and the barbed rods 8 are provided with rectangular grooves 802 on one side close to the intermediate web plate, and the other end of the folding pull rod 14 is hinged at the bottom of the rectangular groove 802; through the folding pull rod 14, after the entire tensioning mechanism is inserted into the drilled hole, high-pressure cement slurry can be injected into the hole. With the impact of the cement slurry on the barbed rod 8, the two folding pull rods 14 will be tightened and straightened, and the barbed rods 8 on both sides of the H-shaped steel plug rod 9 will also be unfolded, forming an inverted anti-slip effect, thereby improving the anti-slip tensioning effect of the tensioning mechanism.

[0032] Reference Figure 3-Figure 4 On both sides of the middle web, one end close to the pointed head is respectively fixed with mutually symmetrical soil retaining cones 15, and the end of the barbed rod 8 close to the pointed head is plugged with a hinge shaft 803 parallel to the middle web, and the wing plate is provided with a plug-in shaft hole 902 adapted to the hinge shaft 803; the end of the soil retaining cone 15 away from the pointed head is larger than the width and thickness of the barbed rod 8, so that when drilling at the beginning, the broken soil can be reduced from drilling into the rectangular groove 802, ensuring that the folding pull rod 14 can be normally unfolded later.

[0033] Among them, the folding pull rod 14 is completely hidden in the rectangular groove 802 after being folded, and the outer side surfaces of the two barbed rods 8 after being folded do not exceed the surface where the edge of the wing plate is located; this can reduce the resistance of the H-shaped steel rod 9 when it is initially inserted into the drill hole.

[0034] Among them, an outer head 801 is reserved at the end of the barbed rod 8 away from the pointed head, and the bending direction of the outer head 801 is away from one end of the middle web; by setting the outer heads 801 that are bent outward on both sides, it can be easier to unfold the barbed rod 8 when it is needed. It can be done by manually extending a rod from the hole to tamp it, or by directly injecting high-pressure cement slurry to impact it.

[0035] Reference Figure 5-Figure 6 The top of the two top corners of the precast concrete part 1 are both reserved with convex ribs 101, and the top of the convex ribs 101 is provided with grouting holes 11 vertically connected with the hinge hole 12; through the set grouting holes 11, paint or cement slurry can be added from the top of the grouting holes 11 after installation and connection, so as to protect the exposed fixed ear plates 901 and prevent rust and corrosion from damaging the joint position.

[0036] Among them, a fence climbing frame 2 with an overall M-shaped structure is fixed to the upper surface of the precast concrete part 1; through the set fence climbing frame 2, vine-like vegetation can be planted in the slope protection cells when in use, thereby playing a windproof role, reducing the surface wind speed, and reducing the probability of soil being blown away by the wind.

[0037] Reference Figure 5 , Figure 6 , Fig. 9 A vertical shallow groove 5 is opened at the middle corner of the upper surface of the precast concrete part 1, and a deep groove 2 18 of equal width is opened near the bottom of the shallow groove 5; symmetrical combination grooves 7 are opened at both ends of the upper surface of the precast concrete part 1, and a combination groove 2 701 with a depth deeper than the combination groove 7 is opened near the bottom end of the combination groove 7; by setting the stepped shallow groove 5 and the deep groove 2 18, when in use, all the rainwater accumulated on the top of the precast concrete part 1 can be guided to the corner for discharge, so as to facilitate centralized treatment.

[0038] Among them, the bottoms of the combined groove 2 701 and the deep groove 2 18 are respectively provided with an arc groove 17 and an arc groove 20 near the top, the length of the arc groove 17 is equal to half of the arc groove 20, and the water guide plate 6 with an overall fan-shaped structure is clamped in the arc groove 20, and the top of the water guide plate 6 is reserved with an extension plate 602 that is adapted to the width and thickness of the deep groove 2 18, and the side of the extension plate 602 is provided with a sliding hole 603 coaxial with the arc groove 20, and a compression spring 605 is slidably connected inside the sliding hole 603, and round rod heads 604 are fixed at both ends of the compression spring 605; one end of the arc groove 17 and the side walls of the two ends of the arc groove 20 are provided with positioning countersunk holes 21 that are adapted to the round rod heads 604; through the provided positioning countersunk holes 21 and round rod heads 604, the water guide plate 6 can be tightly clamped in the drainage position, so that the collected water in the previous cell can be dispersed to the surface of the next cell to prevent the formation of ditches.

[0039] Among them, water retaining strips 601 are fixed on the upper surface of the water guide plate 6 near the edges on both sides, which can prevent water from falling near the contact between the precast concrete part 1 and the ground, thereby causing scouring and suspension, thereby protecting the soil near the precast concrete part 1.

[0040] When the device is in use, a prefabricated concrete part 1 and its accompanying parts are a unit. Before installation, a hole is first drilled at the top corner position of the slope surface close to the prefabricated concrete part 1, and then the tensioning mechanism is driven into the drilled hole, that is, the H-shaped steel plug rod 9 with barbed rods 8 hinged on both sides is inserted into the drilled hole as a whole, and before inserting, it is ensured that the two barbed rods 8 are attached to the middle web; then the fixed ear plate 901 and the prefabricated concrete part 1 can be connected by the latch hole; when connecting, it is only necessary to insert the U-shaped connecting piece 13 from the bottom of the ends of the two prefabricated concrete parts 1 into the corresponding through hole 19 until the U-shaped connecting piece 13 is stuck in the two L-shaped connecting grooves 16, and finally lock it with the self-locking nut 3. After locking, the protruding excess part can be hammered to be crooked, and finally the protruding part together with the self-locking nut is covered with cement slurry; finally, after the vegetation is planted, the water guide plate 6 can be installed in place.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A greening protection structure for a highway slope, comprising a prefabricated concrete component (1) having an overall M-shaped structure, wherein the prefabricated concrete component (1) comprises two symmetrical top corners and a bottom corner located in the middle and bent downward, and is characterized in that: The back side of the precast concrete part (1) is provided with hinge holes (12) near two top corners, and coaxially distributed transverse pin holes (10) are provided on both sides of the hinge holes (12). A tensioning mechanism is hinged in the hinge holes (12), and the tensioning mechanism includes a fixed ear plate (901) hinged in the hinge holes (12), a plug hole matching the transverse pin hole (10) is provided in the middle of the side of the fixed ear plate (901), and the plug hole and the transverse pin hole (10) are plugged with the same plug rod; the fixed ear plate (901) is away from the hinge holes (12). An H-shaped steel plug rod (9) is welded to one end; the lower surfaces of both ends of the concrete precast member (1) are respectively provided with mutually symmetrical L-shaped connecting grooves (16), and the bottoms of the L-shaped connecting grooves (16) are provided with through holes (19) that communicate with the upper surface of the concrete precast member (1); a U-shaped connecting member (13) is clamped in one of the L-shaped connecting grooves (16); and two mutually symmetrical screw rods (4) are fixed to the upper surface of the U-shaped connecting member (13), and one of the screw rods (4) passes through the through hole (19) on the side and is screwed with a self-locking nut (3); The H-shaped steel plug rod (9) comprises two wing plates parallel to each other, and a middle web plate perpendicular to the wing plates is fixed between the two wing plates, and mutually symmetrical hinged base plates (141) are fixed on both sides of the middle web plate, and the sides of the hinged base plates (141) are hinged with folding pull rods (14); the end of the H-shaped steel plug rod (9) away from the fixed ear plate (901) is provided with a pointed head, and the ends of the two wing plates of the H-shaped steel plug rod (9) close to the pointed head are rotatably connected to two mutually symmetrical barbed rods (8), and the barbed rods (8) are each provided with a rectangular groove (802) on one side close to the middle web plate, and the other end of the folding pull rod (14) is hinged to the bottom of the rectangular groove (802); Mutually symmetrical soil retaining cones (15) are fixed to the ends of both sides of the middle web near the pointed head, and a hinge shaft (803) parallel to the middle web is inserted into the end of the barbed rod (8) near the pointed head, and a plug-in shaft hole (902) matched with the hinge shaft (803) is opened on the wing plate; the end of the soil retaining cone (15) away from the pointed head is larger than the width and thickness of the barbed rod (8); The folding pull rod (14) is wholly hidden in the rectangular groove (802) after being folded, and the outer side surfaces of the two barbed rods (8) after being folded do not exceed the surface where the edge of the wing plate is located; an outer warp (801) is reserved at the end of the barbed rod (8) away from the tip, and the bending direction of the outer warp (801) is away from the end of the middle web.

2. A greening protection structure for highway slopes according to claim 1, characterized in that: The top ends of the two top corners of the prefabricated concrete part (1) are both reserved with convex ridges (101), and the top ends of the convex ridges (101) are provided with grouting holes (11) that are vertically connected to the hinge holes (12).

3. The greening protection structure for highway slope according to claim 1 is characterized in that: A fence climbing frame (2) having an overall M-shaped structure is fixed to the upper surface of the prefabricated concrete component (1).

4. The greening protection structure for highway slope according to claim 1 is characterized in that: A vertical shallow groove 1 (5) is provided at a corner in the middle of the upper surface of the precast concrete part (1), and a deep groove 2 (18) of equal width is provided near the bottom of the groove bottom of the shallow groove 1 (5); symmetrical combination grooves 1 (7) are provided at both ends of the upper surface of the precast concrete part (1), and a combination groove 2 (701) having a depth deeper than that of the combination groove 1 (7) is provided near the bottom of the groove bottom of the combination groove 1 (7).

5. A greening protection structure for highway slopes according to claim 4, characterized in that: The bottoms of the second combined groove (701) and the second deep groove (18) are respectively provided with an arc-shaped groove (17) and an arc-shaped groove (20) near the top, the length of the arc-shaped groove (17) being equal to half of the arc-shaped groove (20), and a water guide plate (6) having an overall fan-shaped structure is clamped in the arc-shaped groove (20), an extension plate (602) matching the width and thickness of the second deep groove (18) is reserved at the top of the water guide plate (6), and a sliding hole (603) coaxial with the arc-shaped groove (20) is provided on the side of the extension plate (602), a compression spring (605) is slidably connected inside the sliding hole (603), and round rod heads (604) are fixed at both ends of the compression spring (605); positioning countersunk holes (21) matching the round rod heads (604) are provided at one end of the arc-shaped groove (17) and at both end side walls of the arc-shaped groove (20).

6. A highway slope greening protection structure according to claim 5, characterized in that: Water retaining strips (601) are fixed to the upper surface of the water guide plate (6) near the edges on both sides; this can prevent water from falling near the contact point between the prefabricated concrete component (1) and the ground, thereby causing scouring and suspension.

Images