Highway base mudstone interlayer slope protection device and construction method

Abstract

The present application relates to the technical field of slope protection, and discloses a highway base mudstone interlayer slope protection device and a construction method. The highway base mudstone interlayer slope protection device comprises at least two support units and a protection unit arranged between the two support units. The support unit comprises a base, a support column hingedly connected to the base, and an auxiliary mounting assembly arranged between the support column and the base. The auxiliary mounting assembly comprises a hinge part and a linear telescopic part. The protection device and the construction method thereof solve the problems of low installation efficiency, poor precision and insufficient stability of the support column in traditional slope protection construction by means of the auxiliary mounting assembly. The auxiliary mounting assembly has the functions of positioning, fine adjustment and support during construction. During preliminary installation, the auxiliary mounting assembly can quickly guide and stably support the support column to a preset inclination angle, thereby simplifying the traditional complicated manual measurement and temporary fixing process and reducing the construction difficulty and labor intensity.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and more specifically, to a slope protection device and construction method for mudstone interlayer slopes along highway foundations. Background Technology

[0002] In highway construction, unfavorable slope geological conditions composed of mudstone interlayers are frequently encountered. Mudstone is characterized by its tendency to soften and disintegrate when exposed to water, resulting in a sharp decrease in strength. Under the influence of external forces such as rainfall, weathering, or vibration, these slopes are highly susceptible to geological disasters such as surface spalling, landslides, and even mudslides, seriously threatening the stability of the roadbed and traffic safety. Therefore, effective protective measures must be taken. Currently, existing technologies generally employ anchored frame beams, retaining walls, or active flexible protective netting systems for reinforcement. Among these, flexible protective systems composed of steel column supports and high-strength steel wire mesh are widely used due to their strong adaptability to deformation and convenient construction.

[0003] However, in the construction of existing flexible slope protection systems, the installation and angle positioning of the support columns largely rely on the experience of the construction workers. This typically requires multiple people working together, repeatedly adjusting the tilt angle of the support columns using simple measuring tools, and temporarily using ropes or poles for support and fixation. The process is cumbersome, inefficient, and makes precise angle control difficult. Fine-tuning after installation is even more challenging, often requiring disassembly and reinstallation, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a slope protection device and construction method that can simplify the installation process and achieve rapid, accurate positioning and fine-tuning. Summary of the Invention

[0004] The purpose of this invention is to provide a slope protection device and construction method for mudstone interlayers on highway foundations, in order to solve the aforementioned technical problems.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides a slope protection device for mudstone interlayers on highway foundations, comprising: at least two support units and a protection unit disposed between the two support units;

[0007] The support unit includes a base, a support column hinged to the base, and an auxiliary mounting assembly disposed between the support column and the base;

[0008] The auxiliary installation assembly includes a hinge, a linear telescopic part, an adjustment part, and an adjustment amount indicator; the hinge is detachably hinged to the base; one end of the linear telescopic part is fixed to the hinge, and the other end is detachably hinged to one side of the support column; when the support column rotates, the linear telescopic part can synchronously adapt to the expansion and contraction of the support column.

[0009] The adjustment unit is connected to the linear telescopic unit and is used to adjust and lock the length of the linear telescopic unit when it is stationary; the adjustment amount indicator is used to display the tilt angle of the support column corresponding to the adjustment amount of the adjustment unit.

[0010] Preferably, the hinge is a rotating base, which is detachably hinged to the top surface of the base by bolts and nuts.

[0011] Preferably, the linear telescopic part includes a fixed sleeve fixed to the hinge part and a sliding sleeve slidably sleeved on the outside of the fixed sleeve, one end of the sliding sleeve being detachably hinged to one side of the support column.

[0012] Preferably, the fixed sleeve has a limiting groove on its outer side, and the sliding sleeve has a limiting slider on its inner side that slides in cooperation with the limiting groove.

[0013] Preferably, the adjusting part includes a screw fixed to the hinge part, an adjusting sleeve threaded on the outside of the screw, a driving plate rotatably sleeved on the outside of the screw, a top rod slidably disposed on the inside of the fixed sleeve, and a contact rod fixed on the inside of the sliding sleeve; one end of the driving plate is connected to the top rod, and one end of the contact rod is in contact with the end of the top rod.

[0014] Preferably, a locking nut is threaded onto the screw, and the locking nut is used to tighten it until it contacts the bottom of the drive plate for locking.

[0015] Preferably, the adjustment indicator includes a pointer on the drive plate and a degree scale on the outside of the fixed sleeve, with the pointer pointing to the zero mark in the middle of the degree scale.

[0016] Preferably, there are two linear telescopic parts, which are symmetrically distributed on both sides of the hinge.

[0017] Preferably, the protective unit is a wire mesh of a preset shape, and the two sides of the wire mesh are fixed to corresponding support columns respectively.

[0018] A construction method for a mudstone interlayer slope of a highway subgrade includes the following steps:

[0019] S100: Determine the installation plan based on the site conditions of the slope, including the preset tilt angle of the support columns, and prepare the corresponding components;

[0020] S200: Concrete pile foundations are poured at the selected installation points, and the base is fixed to the pile foundations after they are formed.

[0021] S300: Hinge the hinge of the auxiliary mounting component onto the base, and adjust and lock the auxiliary mounting component to a preset tilt angle;

[0022] S400: Hinge the bottom end of the support column to the base and lift the support column to connect it to the free end of the linear telescopic part of the auxiliary installation component, thus completing the initial installation of the support column and setting its tilt angle to the preset state.

[0023] S500: If the inclination of the support column meets the on-site installation requirements, proceed directly to the next step.

[0024] If a fine adjustment to the tilt of the support column is required, the following steps should be performed:

[0025] S501: Release the lock on the hinge and slightly lift the support column;

[0026] S502: The length of the linear telescopic part is changed by operating the adjustment unit. The angle corresponding to the adjustment amount is observed through the adjustment amount indicator. After the required angle is reached, the support column is lowered and the adjustment unit is locked.

[0027] S600: Secure the support column to the anchoring point using anchoring ropes;

[0028] S700: After all support columns are installed, install the protective unit between the support columns.

[0029] The beneficial effects of this invention are as follows:

[0030] The protective device and its construction method of this invention solve the problems of low installation efficiency, poor accuracy, and insufficient stability of support columns in traditional slope protection construction by adding an auxiliary installation component. This auxiliary installation component has three functions during construction: positioning, fine-tuning, and support. During initial installation, it can quickly guide and firmly support the support column to a preset tilt angle, simplifying the traditional cumbersome manual measurement and temporary fixing process, reducing construction difficulty and labor intensity, and improving installation efficiency. In the fine-tuning stage, its precise mechanical adjustment structure combined with intuitive angle indication makes angle fine-tuning simple, accurate, and controllable, avoiding repeated disassembly and installation, and effectively ensuring construction quality. After installation, the auxiliary installation component, as a reliable auxiliary support structure, works in conjunction with the anchoring system to enhance the impact resistance of the support column and the long-term stability of the overall structure, thus providing a safer and more stable protection for highway mudstone interlayer slopes. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a slope protection device for mudstone interlayers on highways according to the present invention;

[0032] Figure 2 This is a front view of a slope protection device for mudstone interlayers on highways according to the present invention;

[0033] Figure 3This is a side view of a slope protection device for mudstone interlayers on highways according to the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the support unit in a highway foundation mudstone interlayer slope protection device of the present invention;

[0035] Figure 5 This is a schematic diagram of the auxiliary installation component in a highway foundation mudstone interlayer slope protection device of the present invention;

[0036] Figure 6 This is a schematic diagram of the internal structure of the auxiliary installation component in a highway foundation mudstone interlayer slope protection device of the present invention;

[0037] Figure 7 This is a flowchart illustrating the construction method of a slope protection device for mudstone interlayers on highways, as described in this invention.

[0038] In the diagram: 10, base; 20, support column; 30, auxiliary installation component; 301, swivel seat; 302, fixing sleeve; 303, sliding sleeve; 304, limit groove; 305, limit slider; 306, screw; 307, adjusting screw sleeve; 308, driving plate; 309, top rod; 310, contact rod; 311, locking nut; 312, pointer; 313, degree scale line; 40, wire mesh; 50, anchoring rope. Detailed Implementation

[0039] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0040] Please refer to the following: Figures 1 to 3A slope protection device for mudstone interlayers on highway foundations includes at least two support units and a protection unit disposed between the two support units. The number of support units and protection units needs to be determined according to the actual conditions of the slope. Each support unit includes a base 10, a support column 20 hinged to the base 10, and an auxiliary installation assembly 30 disposed between the support column 20 and the base 10. The base 10 is set on a concrete-poured pile foundation and fixed with bolts and nuts. The support column 20 is made of I-shaped aluminum alloy steel, and a mating seat adapted to the support column 20 is provided on the base 10. The bottom end of the support column 20 is hinged to the mating seat with bolts. The protection unit can be a high-strength steel wire mesh 40 arranged in a certain shape, with the left and right ends of the steel wire mesh 40 fixed to the corresponding support columns 20.

[0041] Please refer to the following: Figure 1 , Figures 4 to 6 The auxiliary installation component 30 includes a hinge, a linear telescopic part, an adjustment part, and an adjustment amount indicator. The hinge is hinged to the base 10. One end of the linear telescopic part is fixed to the hinge, and the other end is detachably hinged to one side of the support column 20. When the support column 20 rotates, the linear telescopic part can synchronously adapt to the extension and contraction of the support column 20. The adjustment part is connected to the linear telescopic part and is mainly used to adjust the length of the linear telescopic part when it is stationary. It has a stable self-locking function and can provide stable support for the linear telescopic part, so that it can maintain a stable and natural extended state after adjustment. The adjustment amount indicator is used to indicate the tilt angle of the support column 20 corresponding to the adjustment amount of the adjustment part, so that the operator can quickly adjust it to the required tilt angle.

[0042] Specifically, the hinge part is a rotating seat 301, which is detachably hinged to the top surface of the base 10. After the base 10 is fixed to the pile foundation, the rotating seat 301 is then installed on the base 10. There are two linear telescopic parts, which are symmetrically distributed on the rotating seat 301. The linear telescopic part includes a fixed sleeve 302 and a sliding sleeve 303. The bottom end of the fixed sleeve 302 is fixed to the rotating seat 301, while the sliding sleeve 303 is slidably sleeved on the outside of the fixed sleeve 302. The top end of the sliding sleeve 303 is detachably hinged to one side of the support column 20. The fixed sleeve 302 has a limiting groove 304 on its outer side, and the sliding sleeve 303 has a limiting slider 305 that slides in cooperation with the limiting groove 304 on its inner side. By sliding the limiting slider 305 in cooperation with the limiting groove 304, the sliding sleeve 303 can be prevented from directly detaching from the fixed sleeve 302.

[0043] The adjusting unit includes a screw 306, an adjusting sleeve 307, a driving plate 308, two push rods 309, and two contact rods 310. It is fixed to the rotating base 301. The adjusting sleeve 307 is threaded onto the outside of the screw 306, and the driving plate 308 is rotatably sleeved onto the outside of the adjusting screw 306. The two push rods 309 are correspondingly slidably disposed inside the fixed sleeve 302, and both ends of the driving plate 308 slide to the inner side of the corresponding fixed sleeve 302 and are fixed to the outer side of the corresponding push rod 309. The two contact rods 310 are respectively fixed inside the two sliding sleeves 303, with their ends contacting the top of the corresponding contact rod 310. Additionally, a locking nut 311 can be fitted onto the bottom end of the screw 306. After adjusting the inclination of the support column 20, the locking nut 311 can be rotated to contact the driving plate 308, working together with the adjusting sleeve 307 to lock the drive plate 308, thus improving the locking effect.

[0044] The adjustment indicator includes a pointer 312 and a degree scale 313. The pointer 312 is located at one end of the drive plate 308, and the degree scale 313 is located on the outside of the fixed sleeve 302 near the pointer 312. The pointer 312 initially points to the zero line in the middle of the degree scale 313. The degree lines of the degree scale 313 are adapted and set according to the specific parameters of the linear telescopic part, the adjustment part, and the support column 20. Moving upwards represents an increase in the inclination of the support column 20, and moving downwards represents a decrease in the inclination of the support column 20. The degree represented by each scale line can be adjusted according to specific circumstances.

[0045] Please refer to the following: Figure 7 The construction and installation process of the protective device of the present invention is as follows:

[0046] First, a suitable installation plan needs to be customized based on the actual conditions of the slope, including the location of the pile foundation of the base 10, the number of support units and protection units, the customization of support columns 20 of appropriate size, base 10, auxiliary installation components 30 and wire mesh 40, and the determination of the installation tilt angle of the support columns 20. After the installation plan of the protection device is determined, the relevant components are produced in the factory and transported to the slope for on-site installation.

[0047] According to the pre-selected installation point, first pour concrete pile foundation. After the pile foundation has solidified, fix the base 10 on the pile foundation. Then, use studs and nuts to install the rotating seat 301 on the base 10 so that it is hinged to the base 10. Next, rotate the entire auxiliary installation assembly 30 to the preset tilt angle and rotate the nut at the hinge end of the rotating seat 301 to lock the rotating seat and keep it in the preset tilt angle posture.

[0048] Next, place the support column 20 on the ground, connect its end to the corresponding installation position of the base 10, and fix it with bolts and nuts. Install two anchoring ropes on the top of the support column 20. Then slowly lift the support column 20 and gradually move it closer to the auxiliary installation component 30 until the sliding sleeve 303 is aligned with the preset installation position on the support column 20. Then use bolts to connect the two together. Since the parameters of the linear telescopic part are adapted to the preset inclination of the support column 20, after the sliding sleeve 303 is connected to the support column 20, the support column 20 is stably supported and its inclination angle is exactly at the preset inclination. At this time, the initial installation of the support column 20 is completed.

[0049] During actual construction, the inclination of the support column 20 will be finely adjusted based on the on-site installation environment. At this point, the locking of the hinged end of the rotating seat needs to be released first, and then the support column 20 is slightly lifted upwards. The sliding sleeve 303 will then follow the movement of the support column 20. The required adjustment angle can then be achieved by rotating the adjusting screw sleeve 307 in the corresponding direction, which will cause the driving plate 308 to move, along with the push rods 309 at both ends. Workers can determine whether the required adjustment angle has been reached by observing the position of the degree scale line 313 pointed to by the pointer 312. After reaching the desired adjustment angle, stop rotating the adjusting sleeve 307. Then, lower the support column 20. Due to the change in the position of the push rod 309, its contact height with the contact rod 310 changes, which in turn changes the final tilt angle of the support column 20. If the tilt angle of the support column 20 meets the on-site installation requirements, rotate the locking nut at the bottom of the screw 306 to the bottom of the drive plate 308 to lock the bottom of the drive plate 308, thus completing the fine adjustment of the tilt angle of the support column 20. If the tilt angle does not meet the installation requirements, repeat the above operation.

[0050] After the inclination angle of the support column 20 is determined, the two anchoring ropes are fixed to the preset anchoring points to further strengthen the support and fixation of the support column 20. After all the support columns 20 are installed, the wire mesh 40 can be installed between the two support columns 20, and the installation of the protective device is completed.

[0051] Therefore, this invention adds an auxiliary installation component 30 between the support column 20 and the base 10. During the installation of the protective device, after the auxiliary installation component 30 is installed at a preset tilt angle and connected to the support column 20, the tilt angle of the support column 20 can be quickly fixed to the preset state, primarily serving as a positioning structure. Compared with traditional manual measurement methods, using the auxiliary installation component 30 simplifies the complex adjustment process, reduces construction difficulty, increases installation speed, and reduces the workload of workers. When fine-tuning of the tilt angle of the support column 20 is required, the auxiliary installation component 30 acts as a high-precision adjustment structure, allowing the adjustment amount to be directly determined through the operation of the adjustment unit. The adjustment steps are simpler, and workers can directly determine the adjustment angle based on the angle scale lines, resulting in more accurate and controllable adjustments and preventing repeated adjustments. After the tilt angle of the support column 20 is determined, the auxiliary installation component 30 also serves as an auxiliary support structure for the support column 20, providing a certain supporting force and, together with the anchoring rope, providing stable support for the support column 20, further enhancing its impact resistance.

[0052] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A slope protection device for mudstone interlayers on highway foundations, characterized in that, include: At least two support units and a protective unit located between the two support units; The support unit includes a base, a support column hinged to the base, and an auxiliary mounting assembly disposed between the support column and the base; The auxiliary installation assembly includes a hinge, a linear telescopic part, an adjustment part, and an adjustment amount indicator; the hinge is detachably hinged to the base; one end of the linear telescopic part is fixed to the hinge, and the other end is detachably hinged to one side of the support column; when the support column rotates, the linear telescopic part can synchronously adapt to the expansion and contraction of the support column. The adjustment unit is connected to the linear telescopic unit and is used to adjust and lock the length of the linear telescopic unit when it is stationary; the adjustment amount indicator is used to display the tilt angle of the support column corresponding to the adjustment amount of the adjustment unit. The linear telescopic part includes a fixed sleeve fixed to the hinge part and a sliding sleeve slidably sleeved on the outside of the fixed sleeve. One end of the sliding sleeve is detachably hinged to one side of the support column. The fixed sleeve is provided with a limiting groove on the outside, and the sliding sleeve is provided with a limiting slider that slides in cooperation with the limiting groove on the inside. The adjusting part includes a screw fixed to the hinge part, an adjusting sleeve threaded on the outside of the screw, a driving plate rotatably sleeved on the outside of the screw, a top rod slidably disposed on the inside of the fixed sleeve, and a contact rod fixed on the inside of the sliding sleeve; one end of the driving plate is connected to the top rod, and one end of the contact rod is in contact with the end of the top rod. The adjustment indicator includes a pointer on the drive plate and a degree scale on the outside of the fixed sleeve. The pointer points to the zero mark in the middle of the degree scale.

2. The slope protection device for mudstone interlayers on highway foundations according to claim 1, characterized in that, The hinge is a rotating base, which is detachably hinged to the top surface of the base by bolts and nuts.

3. The slope protection device for mudstone interlayers on highway foundations according to claim 1, characterized in that, A locking nut is threaded onto the screw, and the locking nut is used to tighten it until it contacts the bottom of the drive plate to lock it in place.

4. The slope protection device for mudstone interlayers on highway foundations according to claim 1, characterized in that, The linear telescopic section is provided in two parts, and the two linear telescopic sections are symmetrically distributed on both sides of the hinge section.

5. A slope protection device for mudstone interlayers on highway foundations according to claim 1, characterized in that, The protective unit is a wire mesh of a preset shape, and the two sides of the wire mesh are fixed to corresponding support columns.

6. A construction method for a mudstone interlayer slope of a highway subgrade, employing the protective device as described in claim 1, characterized in that, The following steps are included: S100: Determine the installation plan based on the site conditions of the slope, including the preset tilt angle of the support columns, and prepare the corresponding components; S200: Concrete pile foundations are poured at the selected installation points, and the base is fixed to the pile foundations after they are formed. S300: Hinge the hinge of the auxiliary mounting component onto the base, and adjust and lock the auxiliary mounting component to a preset tilt angle; S400: Hinge the bottom end of the support column to the base and lift the support column to connect it to the free end of the linear telescopic part of the auxiliary installation component, thus completing the initial installation of the support column and setting its tilt angle to the preset state. S500: If the inclination of the support column meets the on-site installation requirements, proceed directly to the next step. If a fine adjustment to the tilt of the support column is required, the following steps should be performed: S501: Release the lock on the hinge and slightly lift the support column; S502: The length of the linear telescopic part is changed by operating the adjustment unit. The angle corresponding to the adjustment amount is observed through the adjustment amount indicator. After the required angle is reached, the support column is lowered and the adjustment unit is locked. S600: Secure the support column to the anchoring point using anchoring ropes; S700: After all support columns are installed, install the protective unit between the support columns.

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