Slope protection structure for emergency reinforcement of loess slope and construction method

Abstract

The invention provides a slope protection structure for emergency reinforcement of a loess slope and a construction method, and relates to the technical field of temporary sliding and temporary disaster emergency supporting structures of loess slopes. Comprising a slope protection inclined plate, transverse plates, a vertical plate and a fixed bottom plate, a loess slope is arranged on the back side of the slope protection inclined plate, a plurality of transverse grooves are formed in the slope protection inclined plate, the transverse plates are clamped in the transverse grooves, through holes are formed in the two ends of each transverse plate, and square sleeves penetrate through the through holes; one end of the square sleeve is fixedly connected with a rhombic block, the four corners of the rhombic block are each in a pointed cone shape, and the end, away from the rhombic block, of the interior of the square sleeve is fixedly connected with a fixing plate. A driving motor drives a first bevel gear to rotate, the first bevel gear is meshed with a second bevel gear after rotation, a second threaded rod is driven by the second bevel gear to rotate, and the second threaded rod is in threaded fit with a telescopic plate after rotation, so that the lifting effect of the telescopic plate can be achieved, and accurate regulation and control of the needed height are achieved in cooperation with a hydraulic cylinder.

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] The emergency support structure technology for the stability of slopes or side slopes [abbreviated as "slopes"] before landslides and disasters is a comprehensive technology that integrates the knowledge of engineering geology, structural mechanics, rock and soil mechanics, materials science, emergency rescue and other disciplines and related design concepts to carry out emergency rescue reinforcement and support for the stability of slopes (side slopes). my country's Loess Plateau, which is covered with thick loess and loess-like soil, has gullies and fragments, frequent and intensive engineering activities, and the development and distribution of unstable slopes (side slopes) are extremely common, which seriously affects the safety of human settlements and economic and social development. Especially in some engineering excavation activities, a series of high and steep loess slopes are often formed. If there are continuous rainfall, large-scale mechanical vibrations, etc., it is very easy to induce slope instability and collapse, causing casualties and property losses. Therefore, emergency rescue reinforcement and support for some loess slopes that are on the verge of instability and about to collapse is the most direct and effective measure to prevent loess landslides and collapse disasters. It has a significant effect on reducing casualties and property losses, and has a significant effect on disaster prevention and mitigation.

[0003] The soil structure of loess and loess-like soil is loose, with many large pores, developed vertical joints, easy to collapse when exposed to water, and obvious deformation and instability. Most natural slopes can adaptively remain in a basically stable state under geological action. However, after the disturbance of engineering excavation, a new slope body is formed, and the free surface area of ​​the slope (a certain depth of the slope surface) will be in a state of stress redistribution, which is very easy to deform, become unstable and slide, and artificial emergency reinforcement is required when necessary. The existing stable support measures for soil slopes or slopes are mainly mortar-made stone / concrete retaining walls (slope protection), or reinforced concrete retaining walls (slope protection) structures. The materials required are relatively mixed, and the transportation, loading and unloading and construction processes are complicated and time-consuming. In addition, the overall rigidity and strength of the structure are different, and the support effect for emergency rescue is not good; the related prefabricated components are generally heavy and difficult to carry. The construction or assembly of the above-mentioned retaining walls or slope protection requires geological surveys, designs and other procedures before they can be carried out effectively. When encountering slopes or side slopes that are about to become unstable and collapse, the expected effects are often not achieved and more serious disasters may occur. Summary of the invention

[0004] 1. Technical issues to be resolved

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

[0006] (II) 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, wherein the back side of the slope protection slant plate is closely attached to the free surface of the loess slope to be reinforced, a plurality of horizontal grooves are provided inside the slope protection slant plate, the horizontal plates are clamped inside the horizontal grooves, through holes are provided at both ends of the horizontal plates, the through holes are of square structure, and a square sleeve is passed through the inside of the through holes;

[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 inside the fixed 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 a movable plate;

[0010] The front side of the slope protection plate is equipped with a fixed bottom plate, the upper front side of the fixed bottom plate is fixedly connected with 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 with a hydraulic cylinder.

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

[0012] Preferably, a counterweight block 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 block, and a first bevel gear is fixedly connected to the driving end of the driving motor.

[0013] Preferably, a second bevel gear is meshed on 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 threadably sleeve-connected to the telescopic plate.

[0014] Preferably, both ends of the vertical plate are provided with limiting holes, a spiral rod passes through the limiting hole, the spiral rod passes through the vertical plate and is spirally engaged with the slope protection inclined plate, and a rivet hole is opened 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 penetrates the interior of the latch hole, and the top end of the latch rod is fixedly connected to an upper cone block.

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

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

[0018] Step 1: First, the slope protection plate is pressed against the free surface of the loess slope, and then fixed at the front side of the loess slope foot near the through hole of the horizontal plate through the fixed bottom plate, and then inserted into the ground through the four-corner pointed cone screws of the fixed bottom plate to increase firmness. After that, it can be driven by the driving motor to drive the first bevel gear to rotate, and then the second bevel gear is engaged after rotation, and the first threaded rod is driven to rotate through the second bevel gear, and after rotation, it is threadedly matched 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 and controlled according to the required height;

[0019] Step 2: The hydraulic cylinder is extended to insert the square extension blocks into the through holes at both ends of the horizontal plate, so as to realize the opening of the required horizontal height inside the loess slope. After drilling, the square casing can be accurately inserted into the inside of 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 depth and horizontal position of the drilled hole, and after insertion, it passes through the latch hole, so as to realize the locking and fixation of the multi-layer square casing;

[0020] Step 3: After the square casing is fixed, the second threaded rod is rotated, and after rotation, it cooperates with the fixed plate thread, so that the second threaded rod can be moved forward horizontally, and the movable plate can be moved by the second threaded rod. During the pushing process, the diamond block cooperates to support the pointed cone rod to expand to both sides and pass through the open groove. Then, the pointed cone rod is inserted laterally into the loess slope body 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, so as to further increase the limiting tension and the overall structural properties of the slope protection plates and improve the use strength.

[0022] (III) Beneficial effects

[0023] The present invention provides a slope protection structure and construction method for emergency reinforcement of loess slopes.

[0024] Beneficial effects:

[0025] 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, and the second bevel gear is engaged after rotation. The second bevel gear drives the first threaded rod to rotate, and the second bevel gear is engaged with the telescopic plate after rotation to realize the lifting 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 is convenient for the penetration of the latch rod, and the locking and fixation of the multi-layer square casing is realized, thereby increasing the overall stability of the slope protection.

[0026] 2. The present invention is provided with: a square sleeve, a second threaded rod, a pointed cone plug 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 plug rod can be expanded and supported through the cooperation of the diamond block and pass through the open groove. Then, the pointed cone plug 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.

[0027] 3. The present invention is provided with: a vertical plate, a horizontal plate and a spiral rod, the vertical plate is clamped in the internal rivet hole of the horizontal plate, and the spiral rod penetrates the slope protection inclined plate and the loess slope to complete the spiral fastening, thereby further increasing the limiting tension and the overall structural property of the slope protection inclined plate and improving the use strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of a side top view of a cross section of a square sleeve of the present invention;

[0030] Figure 3 It is a schematic front view of the lateral cross section of the loess slope of the present invention;

[0031] Figure 4 It is a schematic diagram of the clamping connection between the horizontal plate and the vertical plate of the present invention;

[0032] Figure 5 It is a schematic cross-sectional side view of a fixing sleeve of the present invention;

[0033] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram;

[0034] Figure 7 It is an enlarged schematic diagram of the spiral rod structure of the present invention.

[0035] Among them, 1. slope protection inclined 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; 401. counterweight block; 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. pointed cone plug rod; 505. latch hole; 506. diamond block; 507. open slot; 508. movable plate; 6. screw rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example:

[0038] like Figure 1-7 As shown, an embodiment of the present invention provides a slope protection structure for emergency reinforcement of a loess slope, comprising a slope protection inclined plate 1, a horizontal plate 101, a vertical plate 102 and a fixed bottom plate 4. The back side of the slope protection inclined plate 1 is closely attached to the free surface of the loess slope 2 to be reinforced. A plurality of horizontal grooves are provided inside the slope protection inclined plate 1. The horizontal grooves are clamped with the horizontal plates 101. Through holes 1011 are provided at both ends of the horizontal plates 101. The through holes 1011 are of a square structure. A square sleeve 5 runs through the through holes 1011.

[0039] 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, and a rotating shaft 503 is fixedly connected to one side of the movable plate 508. The upper and lower ends of the rotating shaft 503 are rotatably connected to a pointed cone plug rod 504 respectively, and the end of the pointed cone plug rod 504 is in a pointed cone shape, and the end of the pointed cone plug rod 504 is in the shape of a pointed cone ... Open grooves 507 are respectively provided on both sides, and a vertical plate 102 is provided inside the horizontal plate 101. Limiting holes 1021 are provided at both ends of the vertical plate 102. A spiral rod 6 is passed through the interior of the limiting hole 1021. The spiral rod 6 passes through the vertical plate 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. A rivet is passed through the interior of the rivet hole 1012 to increase the firmness again. The rivet hole 1012 and the vertical plate 102 are snap-fitted. A latch hole 505 is provided in the middle of the rhombus block 506. A latch rod 301 is passed through the interior of the latch hole 505. The top of the latch rod 301 is fixedly connected to the upper cone block 3;

[0040] The front side of the slope protection slope 1 is equipped with a fixed base plate 4, the upper front side of the fixed base plate 4 is fixedly connected with 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 with a hydraulic cylinder 403, the extended end of the hydraulic cylinder 403 is fixedly connected with a square extension block 404, the upper rear side of the fixed base plate 4 is fixedly connected with a counterweight block 401, the interior of the counterweight block 401 is fixedly connected with a drive motor 408, screws are penetrated through the four corners of the fixed base plate 4, the drive end of the drive motor 408 is fixedly connected with 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 with a first threaded rod 407, and the first threaded rod 407 is threadedly sleeved with the telescopic plate 405.

[0041] A construction method for an emergency reinforcement and slope protection structure for a loess slope comprises the following construction steps:

[0042] Step 1: First, the slope protection plate 1 is pressed against the free surface of the loess slope 2, and then fixed at the front side of the loess slope 2 near the through hole 1011 of the horizontal plate 101 through the fixed bottom plate 4, and then inserted into the ground through the four-cornered cone screws of the fixed bottom plate 4 to increase firmness. After that, it can be driven by the driving motor 408 to drive the first bevel gear 406 to rotate, and then the second bevel gear is engaged after rotation, and the first threaded rod 502 is driven by the second bevel gear to rotate, and then the first threaded rod 502 is threadedly matched with the telescopic plate 405 after rotation, so that the telescopic plate 405 can be lifted up, and the hydraulic cylinder 403 can be lifted up to facilitate precise adjustment and control according to the required height;

[0043] 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 inclined plate 1 according to the control dimensions of the depth and horizontal position of the drilled hole, and after insertion, it passes through the latch hole 505, thereby realizing the locking and fixing of the multi-layer square sleeve 5;

[0044] Step 3: After the square sleeve 5 is fixed, the second threaded rod 502 is rotated, and after rotation, it is threadedly matched 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 expansion of the pointed cone rod 504 to both sides and penetrate the open groove 507. Then, the pointed cone rod 504 is laterally inserted into the interior of the loess slope body 2 to further increase the anchoring force of the square sleeve 5 and the firmness of the slope protection plate 1;

[0045] 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 penetrates the horizontal plate 101 and the slope protection inclined plate 1 and the loess slope 2 to complete the spiral fastening, further increasing the limiting tension and the overall structural properties of the slope protection inclined plate 1, and improving the use strength.

[0046] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 inclined plate (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 slant 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 slant plate (1), a transverse plate (101) is clamped inside the transverse groove, through holes (1011) are provided at both ends of the transverse plate (101), the through holes (1011) are of square structure, a square sleeve (5) is passed through the through holes (1011), and 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. One 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). A second threaded rod (502) is threadedly sleeved inside the threaded hole, 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 matched with a fixed bottom plate (4), the upper front side of the fixed bottom 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).

2. The slope protection structure for emergency reinforcement of loess slope according to claim 1 is characterized by: A rotating shaft (503) is fixedly connected to one side of the movable plate (508), and a pointed cone plug rod (504) is rotatably connected to the upper and lower ends of the rotating shaft (503), and the end of the pointed cone plug rod (504) is in a pointed cone shape. The end of the pointed cone plug rod (504) is respectively provided with an open groove (507) on both side surfaces of the square sleeve (5).

3. The slope protection structure for emergency reinforcement of loess slope according to claim 1, characterized in that: A counterweight (401) is fixedly connected to the upper rear side of the fixed base plate (4), a driving motor (408) is fixedly connected inside the counterweight (401), a driving end of the driving motor (408) is fixedly connected to a first bevel gear (406), and screws are inserted through the four corners of the fixed base plate (4).

4. The slope protection structure for emergency reinforcement of loess slope according to claim 3 is characterized by: A second bevel gear is meshed with one side of the first bevel gear (406), a first threaded rod (407) is fixedly connected to the top end of the second bevel gear, and the first threaded rod (407) is threadedly sleeve-connected with the telescopic plate (405).

5. The slope protection structure for emergency reinforcement of loess slope according to claim 1, characterized in that: Both ends of the vertical plate (102) are provided with limiting holes (1021), the inside of the limiting holes (1021) is penetrated by a spiral rod (6), the spiral rod (6) penetrates the vertical plate and is spirally engaged with the slope protection inclined plate (1), and the middle part of the horizontal plate (101) is provided with a rivet hole (1012), and the rivet hole (1012) and the vertical plate (102) are snap-fitted.

6. The slope protection structure for emergency reinforcement of loess slope according to claim 1, characterized in that: A latch hole (505) is provided in the middle of the rhombus block (506), a latch rod (301) passes through the latch hole (505), and the top end of the latch rod (301) is fixedly connected to the upper cone block (3).

7. The slope protection structure for emergency reinforcement of loess slope according to claim 1, characterized in that: The extending end of the hydraulic cylinder (403) is fixedly connected with a square extending block (404).

8. A construction method for an emergency reinforcement and slope protection structure for loess slopes, according to a loess slope reinforcement and slope protection structure according to any one of claims 1 to 7, characterized in that: The construction steps include: Step 1: First, the slope protection inclined plate (1) is pressed tightly against the free surface of the loess slope (2), and then fixed to the front side of the loess slope (2) at the foot of the slope 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, the first bevel gear (406) can be driven by the driving motor (408) to rotate, and the second bevel gear is engaged after rotation. The first threaded rod (502) is driven to rotate through the second bevel gear, and the first threaded rod (502) is threadedly matched with the telescopic plate (405) after rotation, so that the telescopic plate (405) can be lifted up, and the desired height can be precisely adjusted and controlled. 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 inclined plate (1) according to the control dimensions of the depth and horizontal position of the drilled hole. After insertion, the latch rod (301) passes through the latch hole (505), thereby realizing the locking and fixing of the multi-layer square sleeve (5); Step 3: After the square sleeve (5) is fixed, the second threaded rod (502) is rotated, and after rotation, it is threadedly matched 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 expansion of the pointed cone plug rod (504) to both sides and penetrate the opening groove (507). Then, the pointed cone plug rod (504) is laterally inserted into the interior of the loess slope body (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 inclined plates (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 inclined plates and improving the use strength.

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