Emergency reinforcing structure for rock slope and construction method

Abstract

The emergency reinforcing structure comprises a supporting structure and a concrete foundation, the supporting structure is a steel structure supporting piece, the concrete foundation is arranged at the front edge of a slope body, one end of the supporting structure is inserted into the concrete foundation, and the other end of the supporting structure abuts against the rock slope. By standardizing the foundation and the profile steel assembly, the construction period is shortened to several hours, and the emergency requirement is met; the H-shaped steel support can be flexibly adjusted according to the rock occurrence and fits the complex terrain; and plain concrete and recoverable profile steel are adopted, so that the material and construction cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aviation engines, and in particular to an emergency reinforcement structure for a rock slope and a construction method. Background Art

[0002] In the hilly and mountainous areas of southwest China (such as Sichuan), the terrain is steep, the rock mass is broken, the hydrological conditions are complex, and landslide disasters occur frequently. In the existing technology, permanent structures such as anchor rods and lattice beams are often used to reinforce rock slopes, but there are the following problems: Long construction period: Traditional methods require complex surveys and designs, which are difficult to meet the timeliness requirements of emergency rescue; Poor adaptability: Permanent structures have high requirements for the slope rock mass and exposed bedrock surface, and it is difficult to quickly match complex terrain; High cost: The materials and construction process are complex and not suitable for temporary emergency scenarios.

[0003] Especially when there are signs of instability such as cracks, front edge extrusion or local rock falling on the slope, a fast, efficient and adaptable temporary reinforcement solution is urgently needed to buy time for the evacuation of personnel and property and subsequent management. Summary of the invention

[0004] The purpose of the present invention is to provide an emergency reinforcement structure and construction method for rock slopes, aiming to solve the problems of long construction period, complex structure and poor adaptability in the prior art, and to achieve the goals of rapid reinforcement, slope stabilization and reduction of emergency rescue costs.

[0005] The present invention is implemented by adopting the following technical scheme: an emergency reinforcement structure for rock slopes, characterized in that it includes a supporting structure and a concrete foundation, the supporting structure is a steel structure support, the concrete foundation is arranged at the front edge of the slope, one end of the supporting structure is inserted into the concrete foundation, and the other end is abutted against the rock slope.

[0006] Furthermore, an adjustment component is provided between the support structure and the rock slope.

[0007] Furthermore, the adjustment component uses a steel plate gasket to adjust the contact angle between the support structure and the rock surface according to the shape of the bedrock surface.

[0008] Furthermore, the concrete foundation adopts a plain concrete foundation and is formed by pouring C30 concrete in one go.

[0009] Furthermore, the supporting structure adopts H-shaped steel.

[0010] A construction method for an emergency reinforcement structure of a rock slope, characterized by comprising the following steps: Step 1: Geological data collection and emergency survey: obtain data on the stratum lithology, geological structure, hydrological conditions and other information of the treatment area, determine the foundation burial depth and foundation treatment requirements; investigate the slope deformation range, rock mass integrity and occurrence, and plan the support layout range and quantity; Step 2: Construction of plain concrete foundation: excavate a foundation pit at the front edge of the slope and pour a C30 plain concrete foundation; before the initial setting of the concrete, insert one end of the H-shaped steel vertically into the foundation to an appropriate distance, and support the other end on the slope rock mass to ensure vertical close contact with the bedrock surface; Step 3: Installation and adjustment of support structure: Use steel plate gaskets to fill the gap between the steel section and the bedrock surface to improve contact stability; cure the concrete to the designed strength to complete the reinforcement system.

[0011] Furthermore, in step 2, one end of the H-shaped steel is vertically inserted into the foundation by 500 mm.

[0012] The emergency reinforcement structure and construction method for rock slopes described in the present invention have the following beneficial effects: Quick response: Through standardized foundation and steel components, the construction period is shortened to a few hours to meet emergency needs; Strong adaptability: H-shaped steel supports can be flexibly adjusted according to the occurrence of rock masses and fit complex terrain; Low cost: Use plain concrete and recyclable steel to reduce material and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; In the figure, 1-adjustment assembly, 2-support structure, 3-concrete foundation. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0017] like Figure 1 As shown, an emergency reinforcement structure for a rock slope includes an adjustment component 1, a support structure 2 and a concrete foundation 3.

[0018] Concrete foundation 3 is a plain concrete foundation, which is set at the front edge of the slope, has a size of 1000mm×1000mm×1000mm, and is cast in one go using C30 concrete as the bearing foundation of the supporting structure.

[0019] Support structure 2 is an H-shaped steel support structure, using H400×400×13×211 steel. One end is anchored 3500mm into the plain concrete foundation, and the other end is vertically and closely attached to the exposed bedrock surface of the slope, offsetting the slope sliding force through the support reaction force.

[0020] The adjustment component 1 is set at the end where the support structure 2 contacts the exposed bedrock surface of the slope. According to the shape of the bedrock surface, a steel plate gasket is used to adjust the contact angle between the support structure 2 and the rock surface to ensure uniform force. The adjustment component 1 and the support structure 2 are connected by welding.

[0021] A construction method for an emergency reinforcement structure for a rock slope, specifically comprising the following steps: Step 1: Geological data collection and emergency survey: Obtain information on the lithology, geological structure, hydrological conditions, etc. of the treatment area to determine the foundation burial depth and foundation treatment requirements; investigate the slope deformation range, rock mass integrity and occurrence, and plan the support layout range and quantity.

[0022] Step 2: Construction of plain concrete foundation: A foundation pit is excavated at the front edge of the slope, and a 1000mm×1000mm×1000mm C30 plain concrete foundation is poured; before the initial setting of the concrete, one end of the H-shaped steel is vertically inserted into the foundation for 500mm, and the other end is supported on the slope rock to ensure vertical close contact with the bedrock surface.

[0023] Step 3: Support structure installation and adjustment: Steel plate gaskets are used to fill the gap between the steel section and the bedrock surface to improve contact stability; the concrete is cured to the designed strength to complete the reinforcement system.

[0024] The geological data collection and emergency investigation in step one specifically include collecting geological data of the area to be treated (geological maps, existing investigation reports), including stratum lithology, geological structure, topography, hydrogeological conditions, etc., and conducting emergency investigation when necessary to determine the buried depth of the supporting foundation and whether necessary foundation treatment is required; further investigate and study the slope to determine the deformation range and scale, material composition and deformation characteristics of the slope, especially the integrity of the rock mass of the rock slope and the occurrence of the rock mass in each area, so that the temporary support is as perpendicular to the exposed rock surface as possible to achieve the best force and support effect, thereby determining the scope and number of temporary reinforcement support arrangements.

[0025] In step 2, the length and position of the H-shaped steel are based on the exposed state of the slope rock mass. The exposed bedrock surface is as perpendicular to the H-shaped steel as possible, and the stress condition is optimal, thereby achieving the purpose of emergency rescue and reinforcement of the rock slope.

[0026] The above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the changes and modifications made by those skilled in the art shall be within the scope of protection of the appended claims of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An emergency reinforcement structure for rock slopes, characterized in that: The invention comprises a support structure (2) and a concrete foundation (3), wherein the support structure (2) is a steel structure support, the concrete foundation (3) is arranged at the front edge of the slope, one end of the support structure (2) is inserted into the concrete foundation (3), and the other end is in contact with the rock slope.

2. The emergency reinforcement structure for rock slope according to claim 1, characterized in that: An adjustment component (1) is also provided between the support structure (2) and the rock slope.

3. The emergency reinforcement structure for rock slope according to claim 2, characterized in that: The adjustment component (1) uses a steel plate gasket to adjust the contact angle between the support structure (2) and the rock surface according to the shape of the bedrock surface.

4. The emergency reinforcement structure for rock slope according to claim 1, characterized in that: The concrete foundation (3) is a plain concrete foundation, which is formed by pouring C30 concrete in one go.

5. The emergency reinforcement structure for rock slope according to claim 1, characterized in that: The supporting structure (2) is made of H-shaped steel.

6. A construction method for an emergency reinforcement structure for a rock slope according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Geological data collection and emergency survey: obtain data on the stratum lithology, geological structure, hydrological conditions and other information of the treatment area, determine the foundation burial depth and foundation treatment requirements; investigate the slope deformation range, rock mass integrity and occurrence, and plan the support layout range and quantity; Step 2: Construction of plain concrete foundation: excavate a foundation pit at the front edge of the slope and pour a C30 plain concrete foundation; before the initial setting of the concrete, insert one end of the H-shaped steel vertically into the foundation to an appropriate distance, and support the other end on the slope rock mass to ensure vertical close contact with the bedrock surface; Step 3: Support structure installation and adjustment: Use steel plate gaskets to fill the gap between the steel section and the bedrock surface to improve contact stability; The concrete is cured to the designed strength to complete the reinforcement system.

7. A construction method for emergency reinforcement structure of rock slope according to claim 6, characterized in that: In step 2, one end of the H-shaped steel is vertically inserted into the foundation by 500 mm.

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