A slope protection structure and construction method for emergency reinforcement of loess slopes

Abstract

The present invention provides a slope protection structure and construction method for emergency reinforcement of loess slopes, and relates to the technical field of emergency support structures for loess slopes in the event of landslides and disasters. The structure comprises a slope protection slant plate, a horizontal plate, a vertical plate and a fixed bottom plate. A loess slope is provided on the back side of the slope protection slant plate. A plurality of horizontal grooves are provided inside the slope protection slant plate, and a horizontal plate is clamped inside the horizontal grooves. Through holes are provided at both ends of the horizontal plate, and square sleeves are passed through the through holes. A diamond block is fixedly connected to one end of the square sleeve, and the four corners of the diamond block are all in a pointed cone shape. A fixed plate is fixedly connected to the end of the square sleeve away from the diamond block. The first bevel gear is driven by a driving motor to rotate, and the second bevel gear is engaged after rotation. The second threaded rod is driven by the second bevel gear to rotate, and the second threaded rod is threadedly engaged with the telescopic plate after rotation, so that the telescopic plate can be lifted up, and the hydraulic cylinder can be used to precisely control the required height.

Description

Technical Field

[0001] The invention relates to the technical field of emergency support structures for loess slopes in the event of landslides or disasters, and in particular to a slope protection structure for emergency reinforcement of loess slopes and a construction method. Background Art

[0002] Emergency support structures for slopes or side slopes (abbreviated as "slopes") are a comprehensive technology that integrates knowledge from engineering geology, structural mechanics, geotechnical mechanics, materials science, and emergency rescue, along with relevant design concepts, to provide emergency reinforcement and support for slope stability. Emergency reinforcement and support for loess slopes on the verge of collapse is the most direct and effective measure to prevent landslides and collapses, significantly reducing casualties and property losses, and achieving significant disaster prevention and mitigation results.

[0003] Loess and loess-like soils have a loose structure, numerous large pores, well-developed vertical joints, and are susceptible to water collapse, resulting in significant deformation and instability. Most natural slopes adaptively maintain a generally stable state in response to geological forces. However, when excavation disturbances create new slopes, stress redistribution occurs in the free-surface area (a certain depth of the slope surface), making them susceptible to deformation, instability, and collapse, necessitating emergency reinforcement. Existing support measures for earthen slopes or side slopes primarily rely on mortar-stone / concrete retaining walls (slope protection) or reinforced concrete retaining walls (slope protection). These require a complex mix of materials, complex and time-consuming transportation, loading and unloading, and construction processes. The resulting structures also exhibit varying overall rigidity, resulting in poor emergency support effectiveness. Furthermore, the associated prefabricated components are generally heavy and difficult to transport. The construction or assembly of the above-mentioned retaining walls or slope protection requires geological surveys, designs and other processes before they can be carried out effectively. When encountering slopes or side slopes that are about to become unstable and collapse, the expected results are often not achieved. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a slope protection structure and construction method for emergency reinforcement of loess slopes, which solves the problems of traditional mortar masonry / concrete (including reinforced) retaining wall slope protection, such as complex and heavy materials, inconvenient transportation, complicated and time-consuming construction procedures, inconsistent structure strength, and poor emergency rescue effects.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a slope protection structure and construction method for emergency reinforcement of loess slopes, comprising:

[0008] A slope protection structure for emergency reinforcement of loess slopes, comprising a slope protection slant plate, a horizontal plate, a vertical plate, and a fixed bottom plate. The back side of the slope protection slant plate is in close contact with the free surface of the loess slope to be reinforced. The slope protection slant plate is provided with a plurality of horizontal grooves, the horizontal plates being clamped in the interior of the horizontal grooves. Both ends of the horizontal plates are provided with through holes, the through holes being of a square structure, and the interiors of the through holes are penetrated by square sleeves.

[0009] One end of the square sleeve is fixedly connected to a diamond block, and the four corners of the diamond block are all in a pointed cone shape. The inner end of the square sleeve away from the diamond block is fixedly connected to a fixed plate, and a threaded hole is opened in the fixing plate. The inner thread of the threaded hole is threadedly sleeved with a second threaded rod, and one end of the second threaded rod is rotatably connected to the movable plate;

[0010] The front side of the slope protection plate is equipped with a fixed base plate, the upper front side of the fixed base plate is fixedly connected to a fixed sleeve, the interior of the fixed sleeve is telescopically matched with a telescopic plate, and the top end of the telescopic plate is fixedly connected to a hydraulic cylinder.

[0011] Preferably, one side of the movable plate is fixedly connected to a rotating shaft, and the upper and lower ends of the rotating shaft are rotatably connected to tapered rods, the ends of the tapered rods are in a tapered shape, and the ends of the tapered rods are respectively provided with open grooves on both sides of the square sleeve.

[0012] Preferably, a counterweight is fixedly connected to the upper rear side of the fixed base plate, a driving motor is fixedly connected to the interior of the counterweight, and a driving end of the driving motor is fixedly connected to a first bevel gear.

[0013] Preferably, a second bevel gear is meshed with one side of the first bevel gear, a first threaded rod is fixedly connected to the top end of the second bevel gear, and the first threaded rod is threadedly sleeved with the telescopic plate.

[0014] Preferably, both ends of the vertical plate are provided with limiting holes, and a spiral rod passes through the interior of the limiting hole. The spiral rod passes through the vertical plate and is spirally engaged with the slope protection plate. A rivet hole is provided in the middle of the horizontal plate, and the rivet hole is snap-fitted with the vertical plate.

[0015] Preferably, a latch hole is provided in the middle of the diamond-shaped block, a latch rod passes through the latch hole, and the top end of the latch rod is fixedly connected to the upper cone block.

[0016] Preferably, the extending end of the hydraulic cylinder is fixedly connected with a square extension block.

[0017] A construction method for a slope protection structure for emergency reinforcement of a loess slope comprises the following construction steps:

[0018] Step 1: First, press the slope protection plate tightly against the free surface of the loess slope, then fix it to the front side of the loess slope foot near the through hole of the horizontal plate through the fixed base plate, and then insert the four-cornered cone-shaped screws of the fixed base plate into the ground to increase its firmness. After that, it can be driven by the drive motor to drive the first bevel gear to rotate, which then engages the second bevel gear. The second bevel gear drives the first threaded rod to rotate, and after rotation, it is threaded with the telescopic plate to realize the lifting effect of the telescopic plate. By lifting the hydraulic cylinder, it can be conveniently and accurately adjusted according to the required height;

[0019] Step 2: The hydraulic cylinder extends, inserting the square extension blocks into the through holes at both ends of the horizontal plate, thereby creating an opening of the required height inside the loess slope. After drilling, the square casing can be accurately inserted into the drilled hole. Then, the latch rod is inserted downward at the top of the slope protection plate according to the control dimensions of the drilled hole depth and horizontal position. After insertion, it passes through the latch hole, thereby locking and fixing the multiple layers of square casing;

[0020] Step 3: After fixing the square casing, rotate the second threaded rod. After rotation, it will cooperate with the fixed plate thread to realize the horizontal forward movement of the second threaded rod, and the movable plate can be moved by the second threaded rod. During the pushing process, the diamond block cooperates to support the tapered rod to expand to both sides and pass through the open groove. Then, the tapered rod is inserted laterally into the interior of the loess slope to increase the anchoring force of the square casing and the firmness of the slope protection plate.

[0021] Step 4: Finally, the vertical plates are clamped into the internal rivet holes of multiple horizontal plates in sequence, and the spiral rods are passed through the horizontal plates and the slope protection plates and the loess slope to complete the spiral fastening, further increasing the limiting tension and the overall structural properties of the slope protection plates, and improving the strength of use.

[0022] (3) Beneficial effects

[0023] The present invention provides a slope protection structure and construction method for emergency reinforcement of loess slopes. It has the following beneficial effects:

[0024] 1. The present invention is provided with: a driving motor, a first threaded rod, a telescopic plate and a hydraulic cylinder. The driving motor drives the first bevel gear to rotate, which engages the second bevel gear after rotation. The second bevel gear drives the first threaded rod to rotate, and after rotation, it is threadedly engaged with the telescopic plate to achieve the rising effect of the telescopic plate. By lifting the hydraulic cylinder, it is convenient to accurately adjust and control according to the required height. Through this structure, an opening is opened in the loess slope. After drilling, the depth and vertical position can be accurately measured, which facilitates the penetration of the pin rod, realizes the locking and fixation of the multi-layer square casing, and increases the overall stability of the slope protection.

[0025] 2. The present invention is provided with: a square sleeve, a second threaded rod, a pointed cone insertion rod and an open groove. After the square sleeve is fixed, the second threaded rod is rotated, and after rotation, it cooperates with the fixed plate thread to realize thread movement, and the movable plate is moved by the second threaded rod structure. During the movement, the pointed cone insertion rod can be expanded and supported by the cooperation of the diamond block and pass through the open groove. Then, the pointed cone insertion rod is laterally inserted into the interior of the loess slope to further increase the anchoring force of the square sleeve and the firmness of the slope protection plate. Through this structure, the connection stability between the slope protection plate, the square sleeve and the loess slope body is increased, and the support effect is greatly enhanced.

[0026] 3. The present invention is provided with: vertical plates, horizontal plates and spiral rods, the vertical plates are clamped in the internal rivet holes of the horizontal plates, and the spiral rods are passed through the slope protection slant plates and the loess slope to complete the spiral fastening, thereby further increasing the limiting tension and the overall structural properties of the slope protection slant plates and improving the strength of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic diagram of the three-dimensional structure of the present invention;

[0028] FIG2 is a schematic diagram of a side top view of a square sleeve cross section of the present invention;

[0029] FIG3 is a schematic front view of a lateral cross section of a loess slope according to the present invention;

[0030] FIG4 is a schematic diagram of the connection between the horizontal plate and the vertical plate of the present invention;

[0031] FIG5 is a schematic side view of a cross section of a fixed sleeve according to the present invention;

[0032] FIG6 is a diagram of the present invention Figure 5 A in the figure is an enlarged schematic diagram;

[0033] FIG7 is an enlarged schematic diagram of the spiral rod structure of the present invention.

[0034] Among them, 1. slope protection plate; 101. horizontal plate; 1011. through hole; 1012. rivet hole; 102. vertical plate; 1021. limit hole; 2. loess slope; 3. upper cone block; 301. latch rod; 4. fixed bottom plate;

[0035] 401, counterweight; 402, fixed sleeve; 403, hydraulic cylinder; 404, square extension block; 405, telescopic plate; 406, first bevel gear; 407, first threaded rod; 408, drive motor; 5, square sleeve; 501, fixed plate; 502, second threaded rod; 503, rotating shaft; 504, tapered rod; 505, latch hole;

[0036] 506, diamond block; 507, open slot; 508, movable plate; 6, screw rod. DETAILED DESCRIPTION

[0037] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. It should be understood that the described embodiments are merely a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0038] Example:

[0039] As shown in Figures 1-7, an embodiment of the present invention provides a slope protection structure for emergency reinforcement of loess slopes, comprising a slope protection slab 1, a horizontal plate 101, a vertical plate 102, and a fixed base plate 4. The back side of the slope protection slab 1 is in close contact with the free surface of the loess slope 2 to be reinforced. The slope protection slab 1 has a plurality of horizontal grooves formed therein, into which the horizontal plates 101 are clamped. Both ends of the horizontal plates 101 have through-holes 1011 formed therein. The through-holes 1011 are square in structure, and a square sleeve 5 passes through the interior of the through-holes 1011.

[0040] One end of the square sleeve 5 is fixedly connected to a diamond block 506, and the four corners of the diamond block 506 are all in a pointed cone shape. The inner end of the square sleeve 5, which is away from the diamond block 506, is fixedly connected to a fixing plate 501.

[0041] A threaded hole is provided inside 501, and a second threaded rod 502 is threadedly sleeved inside the threaded hole. One end of the second threaded rod 502 is rotatably connected to a movable plate 508, and one side of the movable plate 508 is fixedly connected to a rotating shaft.

[0042] 503, the upper and lower ends of the interior of the rotating shaft 503 are respectively rotatably connected with a tapered plug rod 504, the end of the tapered plug rod 504 is in a tapered shape, and the end of the tapered plug rod 504 is respectively provided with an open groove 507 on both sides of the square sleeve 5, and a vertical plate 102 is provided inside the horizontal plate 101. Both ends of the vertical plate 102 are provided with a limiting hole 1021, and the interior of the limiting hole 1021 is penetrated by a spiral rod 6, which penetrates the vertical plate 102 and is spirally matched with the slope protection inclined plate 1. A rivet hole 1012 is provided in the middle of the horizontal plate 101, and a rivet is passed through the inside of the rivet hole 1012 to increase the firmness again. The rivet hole 1012 and the vertical plate 102 are snap-fitted together, and the diamond block

[0043] A latch hole 505 is provided in the middle of the 506, and a latch rod 301 is passed through the interior of the latch hole 505.

[0044] The top of 301 is fixedly connected with an upper cone block 3;

[0045] The front side of the slope protection plate 1 is equipped with a fixed base plate 4, the upper front side of the fixed base plate 4 is fixedly connected to a fixed sleeve 402, the interior of the fixed sleeve 402 is telescopically matched with a telescopic plate 405, the top of the telescopic plate 405 is fixedly connected to a hydraulic cylinder 403, the extended end of the hydraulic cylinder 403 is fixedly connected to a square extension block 404, the upper rear side of the fixed base plate 4 is fixedly connected to a counterweight block 401, the interior of the counterweight block 401 is fixedly connected to a drive motor 408, screws are passed through the four corners of the fixed base plate 4, the driving end of the drive motor 408 is fixedly connected to a first bevel gear 406, one side of the first bevel gear 406 is meshed with a second bevel gear, the top of the second bevel gear is fixedly connected to a first threaded rod 407, and the first threaded rod 407 is threadedly fitted with the telescopic plate 405.

[0046] A construction method for a slope protection structure for emergency reinforcement of a loess slope comprises the following construction steps:

[0047] Step 1: First, press the slope protection plate 1 against the free surface of the loess slope 2. Then, secure it to the front of the loess slope 2, near the through-hole 1011 of the horizontal plate 101, with the fixing base plate 4. The fixing base plate 4 is then screwed into the ground with its four-cornered, tapered screws for added stability. The drive motor 408 then rotates the first bevel gear 406, which then engages the second bevel gear. This second bevel gear drives the first threaded rod 407, which then engages the telescopic plate 405, raising it. By lifting the hydraulic cylinder 403, the desired height can be precisely adjusted.

[0048] Step 2: The hydraulic cylinder 403 extends, and the square extension blocks 404 are respectively inserted into the through holes 1011 at both ends of the horizontal plate 101, thereby achieving an opening of the required horizontal height inside the loess slope 2. After drilling, the square sleeve 5 can be accurately inserted into the drilled hole. Then, the latch rod 301 is inserted downward at the top of the slope protection plate 1 according to the control dimensions of the drilled hole depth and horizontal position. After insertion, it passes through the latch hole 505, thereby locking and fixing the multi-layer square sleeve 5;

[0049] Step 3: After fixing the square sleeve 5, rotate the second threaded rod 502 and align it with the fixing plate.

[0050] 501 threaded rod, the second threaded rod 502 can be moved forward horizontally, and the second threaded rod

[0051] 502 moves the movable plate 508. During the movement, the diamond block 506 cooperates to support the tapered rod 504 to expand to both sides and pass through the open slot 507. The tapered rod 504 is then inserted laterally into the loess slope 2 to further increase the anchoring force of the square sleeve 5 and the firmness of the slope protection plate 1.

[0052] Step 4: Finally, the vertical plate 102 is clamped into the internal rivet hole 1012 of the horizontal plate 101, and the spiral rod 6 is passed through the horizontal plate 101 and the slope protection plate 1 and the loess slope 2 to complete the spiral fastening, further increasing the limiting tension and the overall structural strength of the slope protection plate 1, thereby improving the use strength.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A slope protection structure for emergency reinforcement of loess slopes, comprising a slope protection slab (1), a horizontal plate (101), a vertical plate (102) and a fixed bottom plate (4), characterized in that: The back side of the slope protection plate (1) is closely attached to the free surface of the loess slope (2) to be reinforced. A plurality of transverse grooves are provided inside the slope protection plate (1). A transverse plate (101) is clamped inside the transverse grooves. Through holes (1011) are provided at both ends of the transverse plate (101). The through holes (1011) are square in structure. A square sleeve (5) is passed through the through holes (1011). A vertical plate (102) is provided inside the transverse plate (101). One end of the square sleeve (5) is fixedly connected to a diamond block (506), and the four corners of the diamond block (506) are all in a pointed cone shape. The inner end of the square sleeve (5) away from the diamond block (506) is fixedly connected to a fixed plate (501), and a threaded hole is provided inside the fixed plate (501). The inner thread of the threaded hole is threadedly sleeved with a second threaded rod (502), and one end of the second threaded rod (502) is rotatably connected to a movable plate (508); The front side of the slope protection plate (1) is equipped with a fixed base plate (4), the upper front side of the fixed base plate (4) is fixedly connected to a fixed sleeve (402), the interior of the fixed sleeve (402) is telescopically matched with a telescopic plate (405), and the top end of the telescopic plate (405) is fixedly connected to a hydraulic cylinder (403); One side of the movable plate (508) is fixedly connected to a rotating shaft (503), and the upper and lower ends of the rotating shaft (503) are rotatably connected to a pointed cone plug rod (504), and the end of the pointed cone plug rod (504) is in a pointed cone shape. The ends of the pointed cone plug rod (504) are respectively provided with opening grooves (507) on both sides of the square sleeve (5). The upper rear side of the fixed base plate (4) is fixedly connected to a counterweight block (401), and the inside of the counterweight block (401) is fixedly connected to a driving motor (408). The driving end of the driving motor (408) is fixedly connected to a first bevel gear (406). Screws are passed through the four corners of the fixed base plate (4), and a second bevel gear is engaged with one side of the first bevel gear (406). The top of the second bevel gear is fixedly connected to a first threaded rod (407). The first threaded rod (407) The vertical plate (102) is connected to the telescopic plate (405) by a threaded sleeve connection. Both ends of the vertical plate (102) are provided with a limit hole (1021). The interior of the limit hole (1021) is penetrated by a spiral rod (6). The spiral rod (6) penetrates the vertical plate (102) and is spirally engaged with the slope protection plate (1). The middle of the horizontal plate (101) is provided with a rivet hole (1012). The rivet hole (1012) and the vertical plate (102) are snap-fitted. The middle of the diamond block (506) is provided with a latch hole (505). The interior of the latch hole (505) is penetrated by a latch rod (301). The top of the latch rod (301) is fixedly connected to the upper cone block (3).

2. The loess slope emergency reinforcement structure according to claim 1, characterized in that: The extended end of the hydraulic cylinder (403) is fixedly connected to a square extension block (404).

3. A construction method for a slope protection structure for emergency reinforcement of a loess slope, according to claim 2, characterized in that: The construction steps include: Step 1: First, the slope protection plate (1) is pressed against the free surface of the loess slope (2), and then fixed to the front side of the loess slope (2) at the position near the through hole (1011) of the horizontal plate (101) through the fixed bottom plate (4), and then inserted into the ground through screws passing through the four corners of the fixed bottom plate (4) to increase the firmness. After that, it can be driven by the driving motor (408) to drive the first bevel gear (406) to rotate, and after rotation, it engages the second bevel gear, and the second bevel gear drives the first threaded rod (407) to rotate, and after rotation, it is threadedly matched with the telescopic plate (405), so that the telescopic plate (405) can be lifted up, and the control can be accurately adjusted according to the required height by lifting the hydraulic cylinder (403); Step 2: The hydraulic cylinder (403) is extended to insert the square extension blocks (404) into the through holes (1011) at both ends of the horizontal plate (101), thereby realizing the opening of the required horizontal height inside the loess slope (2). After drilling, the square sleeve (5) can be accurately inserted into the inside of the drilled hole. Then, the latch rod (301) is inserted downward at the top of the slope protection plate (1) according to the control size of the depth and horizontal position of the drilled hole. After insertion, it passes through the latch hole (505), thereby realizing the locking and fixing of the multi-layer square sleeve (5); Step 3: After fixing the square sleeve (5), the second threaded rod (502) is rotated. After the rotation, it is threadedly engaged with the fixed plate (501), so that the second threaded rod (502) can be moved forward horizontally, and the movable plate (508) can be moved by the second threaded rod (502). During the pushing process, the diamond block (506) cooperates to support the cone rod (504) to expand to both sides and pass through the opening groove (507). Then, the cone rod (504) is inserted laterally into the interior of the loess slope (2) to increase the anchoring force of the square sleeve (5) and the firmness of the slope protection plate (1); Step 4: Finally, the vertical plates (102) are sequentially clamped into the internal rivet holes (1012) of the plurality of horizontal plates (101), and the spiral rods (6) are passed through the horizontal plates (101) and the slope protection slats (1) and the loess slope (2) to complete the spiral fastening, thereby further increasing the limiting tension and the overall structural properties of the slope protection slats and improving the use strength.

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