Fence protection structure of semi-underground building of water and electricity engineering

Abstract

The utility model relates to the technical field of protective fence, concretely is a kind of fence protection structure of water and electricity engineering semi-underground building, it is composed of connecting piece one, connecting piece two and connecting piece three: connecting piece one is fixed in the building perimeter wall top, non-violence cannot be disassembled, main body is concrete crash barrier and its above steel pipe stand column;Connecting piece two is fixed in the perimeter wall top by threaded connection, main body is steel pipe crash barrier steel column, can be temporarily disassembled according to the size of required passageway of operation management;Connecting piece three is the handrail fence board of the combination of each model steel pipe component, and the first two can be disassembled connection by screw rod connecting piece and U-shaped steel slot;The utility model satisfies the highway safety protection requirement, and again adapt the passageway demand of building operation maintenance and overhaul hoisting, system function is comprehensive, structure is flexible and easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of protective fence technology, specifically relating to a protective fence structure for a semi-underground building in a hydropower project. Background Technology

[0002] To ensure smooth water flow in hydropower projects, semi-underground structures are often constructed by excavating to a certain depth below ground level, taking into account topographical and geological conditions. This allows water to flow smoothly downstream from the buried hydraulic tunnels. External access roads are typically arranged around these semi-underground structures, usually located close to the outer top of the building's perimeter walls for ease of operation and management. These structures usually provide vertical access from the top to the ground and are often equipped with a roof cover to meet requirements for rain and snow protection, cold weather protection, and traffic flow.

[0003] After a period of operation, semi-underground structures require maintenance of large internal equipment, cleaning of silt and debris carried by water flow, and aging repairs of the top cover structure. Therefore, convenient and efficient implementation methods and access routes must be considered during the initial design and construction phase. Existing road safety barriers are mostly continuous concrete crash barriers fixed to the foundation, typically 70-81cm high according to the protection requirements of Class III and IV highways. Applying this type of barrier to the top of semi-underground structures in hydropower projects has the following drawbacks: (1) When the building is in operation and maintenance, it is necessary to forcibly remove the anti-collision piers on the top of the perimeter wall. After maintenance, it is necessary to rebuild. Repeated removal will affect the structural safety of the perimeter wall of the building. (2) During the maintenance period after the removal of the crash barriers, temporary vehicle traffic protection measures need to be added to the traffic roads, which increases the safety risks of vehicle operation; (3) The height of the crash barriers cannot meet the height requirements of the pedestrian guardrails in hydropower projects, and additional modifications are required.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] In order to solve the above-mentioned technical problems in the existing technology, this utility model provides a fence protection structure for semi-underground buildings in hydropower projects, which solves the technical problems of low operation and maintenance efficiency, reduced project benefits, increased traffic and road safety risks, insufficient civil defense height caused by the violent demolition of existing fixed fences, and shortened safety life of the side walls of semi-underground buildings due to repeated demolition.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A protective fence structure for a semi-underground structure in a hydropower project includes: connector 1, connector 2, and connector 3; The first connector is fixed to the top of the perimeter wall of the semi-underground building; the second connector is fixed to the top of the perimeter wall of the semi-underground building via a threaded connector; the third connector is detachably connected to the first and second connectors via a screw connector and a first U-shaped steel slot and a second U-shaped steel slot.

[0007] Furthermore, the connecting component includes a concrete crash barrier and a steel pipe column; the concrete crash barrier is installed on the top of the perimeter wall of the semi-underground building; the steel pipe column is installed on the top of the concrete crash barrier and is connected to the concrete crash barrier.

[0008] Furthermore, a first connecting steel plate is welded and fixed to the upper part of the steel pipe column of the first connector, and the first connecting steel plate has an installation hole; a first U-shaped steel slot is welded and fixed to both sides of the lower part of the steel pipe column; a second U-shaped steel slot is pre-embedded and fixed in the concrete anti-collision pier, and the concrete anti-collision pier is equipped with a surface steel mesh.

[0009] Furthermore, the main body of the second connector is a steel pipe anti-collision column; the steel pipe anti-collision column is detachably connected to the top of the perimeter wall of the semi-underground building through a threaded connector.

[0010] Furthermore, a second connecting steel plate is welded and fixed to both sides of the upper part of the steel pipe anti-collision steel column of the second connector, and the second connecting steel plate has mounting holes; a first U-shaped steel slot is welded and fixed to both sides of the lower part of the steel pipe anti-collision steel column; a steel pad is welded to the bottom of the steel pipe anti-collision steel column, and the steel pad has mounting holes for threaded connectors to pass through.

[0011] Furthermore, the main body of the connecting component three is a railing panel component; the railing panel component is a combination structure of various types of steel pipe components, or any one of metal plate structure, metal mesh structure, or wrought iron structure.

[0012] Furthermore, when the railing panel component is a combination structure of various types of steel pipe components, the top handrail of the railing panel component is a first steel pipe component, the bottom horizontal rail and the vertical rails on the left and right sides of the railing panel component are second steel pipe components, and the remaining vertical rails of the railing panel component are third steel pipe components; the stiffness of the first steel pipe component is greater than the stiffness of the second steel pipe component, and the stiffness of the second steel pipe component is greater than the stiffness of the third steel pipe component.

[0013] Furthermore, at both ends of the top handrail of the railing panel component of the connecting member three, an angle steel connector is welded to its top and bottom surfaces respectively; the angle steel connector has mounting holes on its vertical surface.

[0014] Furthermore, the bottom horizontal rail of the railing panel component of the connecting member three has a cross-sectional width that is 1-2 mm smaller than the width of the first U-shaped steel slot and 1-2 mm smaller than the width of the second U-shaped steel slot 104.

[0015] Furthermore, the connector and connector two are arranged at intervals, and the distance between connector one and connector two is 1m to 1.5m; When connector three is connected to connector one, the screw connector passes through the mounting hole on the triangular steel connector and the mounting hole on the first connecting steel plate of connector one, and the bottom horizontal bar of connector three is placed in the groove of the first U-shaped steel slot and the second U-shaped steel slot of connector one; when connector three is connected to connector two, the screw connector passes through the mounting hole on the triangular steel connector and the mounting hole on the second connecting steel plate of connector two, and the bottom horizontal bar of connector three is placed in the groove of the first U-shaped steel slot of connector two.

[0016] This utility model provides a fence protection structure for semi-underground buildings in hydropower projects. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall elevation of the fence protection structure provided in this embodiment of the utility model; Figure 2 A frontal view of a connector one of the fence protection structure provided in an embodiment of this utility model; Figure 3 A cross-sectional view AA of the connector of the fence protection structure provided in this embodiment of the utility model; Figure 4 A schematic elevation view of the second connector of the fence protection structure provided in this embodiment of the utility model; Figure 5 A schematic elevation view of the connector three of the fence protection structure provided in this embodiment of the utility model; Figure 6 A schematic diagram of the connection nodes of the connecting steel plate, angle steel connector, and screw connector of the fence protection structure provided in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Connector 1; 2. Connector 2; 3. Connector 3; 4. Top of perimeter wall; 5. External traffic road; 6. Top cover plate; 7. Threaded connector; 8. Screw connector; 9. First U-shaped steel slot; 10. Mounting hole; 101. Concrete anti-collision pier; 102. Steel pipe column; 103. First connecting steel plate; 104. Second U-shaped steel slot; 105. Surface steel mesh; 201. Steel pipe anti-collision column; 202. Second connecting steel plate 2; 203. Steel pad; 301. Railing panel component; 302. First steel pipe component; 303. Second steel pipe component; 304. Third steel pipe component; 305. Angle steel connector. Detailed Implementation

[0019] The technical solution of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are not all embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that, unless otherwise specifically stated, the relative arrangement and numerical expressions of the components and steps described in these embodiments should not be construed as limiting the scope of this utility model.

[0021] The following description of exemplary embodiments is merely illustrative and is not intended to limit the present invention or its application or use in any way. Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail herein, but where applicable, such techniques, methods, and apparatus should be considered part of this specification.

[0022] Example 1 See Figure 1-6 As shown in the figure, this embodiment provides a fence protection structure for a semi-underground structure in a hydropower project, including a set of connector 1, connector 2, and connector 3; the connection relationships between each component and the top 4 of the perimeter wall of the semi-underground structure, and between them, include: Connector 1 is fixed to the top 4 of the perimeter wall of the semi-underground building and cannot be disassembled without force; Connector 2 is fixed to the top 4 of the perimeter wall of the semi-underground building through threaded connector 7, and can be temporarily disassembled according to the size of the passage required for the operation and management of the semi-underground building; Connector 3 is detachably connected to Connector 1 and Connector 2 through screw connector 8 and first U-shaped steel slot 9 and second first U-shaped steel slot 104.

[0023] The connector 1 consists of a concrete crash barrier 101 and a steel pipe column 102. The concrete crash barrier 101 is placed on the top 4 of the perimeter wall of the semi-underground building, and a second U-shaped steel slot 104 is pre-embedded and fixed inside it, and a surface steel mesh 105 is provided. The steel pipe column 102 is located on top of the concrete crash barrier 101 and is connected to the concrete crash barrier 101 in a non-violent and non-removable manner. A connecting steel plate 1103 is welded and fixed to the upper part of the steel pipe column 102, and an installation hole 10 is opened on the connecting steel plate 1103. A first U-shaped steel slot 9 is welded and fixed to both sides of the lower part of the steel pipe column 102.

[0024] The main body of connector 2 is a steel pipe anti-collision steel column 201; a second connecting steel plate 202 is welded and fixed on both sides of the upper part of the steel pipe anti-collision steel column 201, and an installation hole 10 is opened on the second connecting steel plate 202; a first U-shaped steel slot 9 is welded and fixed on both sides of the lower part of the steel pipe anti-collision steel column 201; a steel pad 203 is welded to the bottom of the steel pipe anti-collision steel column 201, and an installation hole 10 is opened on the steel pad 203 for the threaded connector 7 to pass through in order to achieve fixation with the top of the surrounding side wall 4.

[0025] The main body of connector 3 is railing panel component 301; railing panel component 301 can be composed of various types of steel pipe components, or it can be replaced by metal plates, metal mesh, wrought iron, etc.; when railing panel component 301 is a combination structure of various types of steel pipe components: The top handrail uses the first steel pipe component 302 with the greatest rigidity, the bottom horizontal rail and the vertical rails on the left and right sides use the second steel pipe component 303 with relatively high rigidity, and the remaining vertical rails use the third steel pipe component 304 with relatively low rigidity. At both ends of the top handrail of the railing panel component 301, an angle steel connector 305 is welded to the top and bottom surfaces of each end, and the angle steel connector 305 has a mounting hole 10 on its vertical surface. The bottom horizontal rail of the railing panel component 301 has a cross-sectional width that is 1-2 mm smaller than the width of the first U-shaped steel groove 9 and the second U-shaped steel groove 104.

[0026] When connector 3 is connected to connector 1, the screw connector 8 passes through the mounting hole 10 on the angle steel connector 305 of connector 3 and the mounting hole 10 on the first connecting steel plate 103 of connector 1, and the bottom horizontal bar of connector 3 is placed in the groove of the first U-shaped steel slot 9 and the second U-shaped steel slot 104 of connector 1; when connector 3 is connected to connector 2, the screw connector 8 passes through the mounting hole 10 on the angle steel connector 305 of connector 3 and the mounting hole 10 on the second connecting steel plate 202 of connector 2, and the bottom horizontal bar of connector 3 is placed in the groove of the first U-shaped steel slot 9 of connector 2.

[0027] Connector 1 and connector 2 are arranged at intervals, with a spacing of 1m to 1.5m.

[0028] Example 2 This utility model not only meets the protection requirements of the external traffic road 5 on one side of the fence, but also meets the access requirements for the operation, maintenance, and internal inspection and hoisting of the building's top cover 6. It can avoid the reduced safety life of the side walls of semi-underground buildings caused by repeated dismantling of previous fixed fences. Moreover, the fence system is comprehensive in function, flexible in structure, and easy to operate, and can provide a reference for similar protective structures. The following is a detailed description in conjunction with this embodiment: A semi-underground sedimentation basin is constructed in a certain water conservancy and hydropower project. The upstream of the sedimentation basin is connected to the No. 1 buried water diversion tunnel, and the downstream leads to the No. 2 buried water diversion tunnel. The planar projection dimensions are 179.5m long, 39m wide, and 12m~14m deep. An external traffic road (road elevation 833.8m, mainly used for construction and operation and maintenance of the sedimentation basin project area) is arranged around its top. The perimeter is equipped with a side wall with a thickness of 0.8m~1.5m (top elevation of the side wall is 833.8m). The top is equipped with a cover plate structure (top elevation is equivalent to the surrounding external traffic road), and the top of the side wall is equipped with the fence protection structure described in this utility model. The fence protection structure is composed of connector 1, connector 2, and connector 3.

[0029] Among them, connector 1 consists of a concrete crash barrier 101 and a steel pipe column 102. The concrete crash barrier 101 has a semi-trapezoidal cross section (50cm high and 50cm long), and is integral with the structural concrete of the surrounding side wall. It is made of C30 concrete and has a surface finish. 12@100x100 steel mesh, with U-shaped steel grooves 2 pre-embedded inside (groove height 7cm, groove width 5cm, thickness 4mm, length 62cm); steel pipe column 102 adopts... A 60mm steel pipe is welded and fixed to the embedded part at the top of the concrete anti-collision pier 101. A first connecting steel plate 103, 18cm long, 15cm wide, and 8mm thick, with a d9 mounting hole 10, is welded and fixed to its upper part. A first U-shaped steel slot 9, 7cm high, 5cm wide, 4mm thick, and 6cm long, is welded and fixed to both sides of its lower part. The main body of the connecting part two adopts... 114. A 4.5mm thick steel pipe anti-collision steel column 201 has a second connecting steel plate 202 welded and fixed on both sides of its upper part, measuring 15cm in length, 6.85cm in width, and 8mm in thickness, with d9 mounting holes 10. A first U-shaped steel slot 9 of the same specification as connector 1 is welded and fixed on both sides of its lower part. A steel pad 203 measuring 25cm in length, 25cm in width, and 12mm in thickness, with d9 mounting holes 10, is welded and fixed to the bottom. It is connected and fixed to the M12 screw rods in the surrounding side wall by two M12 nuts; the main body of connector 3. The railing panel component 301 is composed of various types of steel pipe components. The top handrail is made of 60x40x2.5 steel pipe, the bottom horizontal rail and the vertical rails on the left and right sides are made of 40x1.5 steel pipe, and the remaining vertical rails are made of 20x1.2 steel pipe. At the top and bottom of the top handrail of the railing panel component 301, a 5cm long ∠50x5 angle steel connector 305 (with d9 mounting holes 10 on the vertical surface) is welded to the top and bottom surfaces of each end, and is connected to the first connecting steel plate 103 and the second connecting steel plate 202 by M8 ordinary bolts.

[0030] During setup, the two connectors 1 are 2.5m apart, and connector 2 is located between the two connectors 1 and 1.25m apart from each connector 1. When dismantling the fence, first remove the M8 ordinary bolts between connector 3 and connectors 1 and 2, then move connector 3 slightly upwards to disengage the bottom horizontal bar from the first U-shaped steel slot 9 and the second U-shaped steel slot 104, and then connector 3 can be removed from the fence system. When inspecting the top cover of the sedimentation tank or cleaning and maintaining the sediment at the bottom, if the 1.25m distance between connectors 1 and 2 meets the operational requirements, only connector 3 can be dismantled. If it does not meet the requirements, then connector 2 can be temporarily removed from the top of the perimeter wall.

[0031] In summary, this utility model can meet the road safety protection requirements on one side of the fence, as well as the access requirements for operation, maintenance, and hoisting on the top of the building, avoiding the reduced lifespan of the side walls of semi-underground buildings caused by the repeated removal of fixed fences in the past. The fence system is comprehensive in function, flexible in structure, and easy to operate, providing a good idea for similar protective structures.

[0032] The above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective fence structure for a semi-underground structure in a hydropower project, characterized in that, include: Connector 1, Connector 2, Connector 3; The first connector is fixed to the top of the perimeter wall of the semi-underground building; the second connector is fixed to the top of the perimeter wall of the semi-underground building via a threaded connector; the third connector is detachably connected to the first and second connectors via a screw connector and a first U-shaped steel slot and a second U-shaped steel slot.

2. The fence protection structure for semi-underground structures in hydropower projects according to claim 1, characterized in that, The connector includes a concrete crash barrier and a steel pipe column; the concrete crash barrier is installed on top of the perimeter wall of the semi-underground building; the steel pipe column is installed on top of the concrete crash barrier and is connected to the concrete crash barrier.

3. The fence protection structure for semi-underground structures in hydropower projects according to claim 2, characterized in that, The upper part of the steel pipe column of the first connector is welded and fixed with a first connecting steel plate, and the first connecting steel plate has an installation hole; the lower two sides of the steel pipe column are welded and fixed with a first U-shaped steel slot; the concrete anti-collision pier is pre-embedded and fixed with a second U-shaped steel slot, and the concrete anti-collision pier is equipped with a surface steel mesh.

4. The fence protection structure for semi-underground structures in hydropower projects according to claim 1, characterized in that, The main body of the second connector is a steel pipe anti-collision column; the steel pipe anti-collision column is detachably connected to the top of the perimeter wall of the semi-underground building through a threaded connector.

5. The fence protection structure for semi-underground structures in hydropower projects according to claim 4, characterized in that, The upper two sides of the steel pipe anti-collision column of the second connector are welded and fixed with a second connecting steel plate, and the second connecting steel plate has an installation hole; the lower two sides of the steel pipe anti-collision column are welded and fixed with a first U-shaped steel slot; a steel pad is welded to the bottom of the steel pipe anti-collision column, and the steel pad has an installation hole for threaded connectors to pass through.

6. The fence protection structure for semi-underground structures in hydropower projects according to claim 1, characterized in that, The main body of the third connector is a railing panel component; the railing panel component is a combination structure of various types of steel pipe components, or any one of metal plate structure, metal mesh structure, or wrought iron structure.

7. The fence protection structure for semi-underground structures in hydropower projects according to claim 6, characterized in that, When the railing panel component is a combination structure of various types of steel pipe components, the top handrail of the railing panel component is the first steel pipe component, the bottom horizontal rail and the vertical rails on the left and right sides of the railing panel component are the second steel pipe components, and the remaining vertical rails of the railing panel component are the third steel pipe components; the stiffness of the first steel pipe component is greater than the stiffness of the second steel pipe component, and the stiffness of the second steel pipe component is greater than the stiffness of the third steel pipe component.

8. The fence protection structure for semi-underground structures in hydropower projects according to claim 6, characterized in that, At both ends of the top handrail of the railing panel component of the third connector, an angle steel connector is welded to the top and bottom surfaces respectively; the angle steel connector has mounting holes on its vertical surface.

9. The fence protection structure for semi-underground structures in hydropower projects according to claim 6, characterized in that, The bottom horizontal rail of the railing panel component of the third connector has a cross-sectional width that is 1-2 mm smaller than the width of the first U-shaped steel groove and 1-2 mm smaller than the width of the second U-shaped steel groove.

10. The fence protection structure for semi-underground structures in hydropower projects according to claim 1, characterized in that, The first connector and the second connector are arranged at intervals, and the distance between the first connector and the second connector is 1m to 1.5m. When connector three is connected to connector one, the screw connector passes through the mounting hole on the triangular steel connector and the mounting hole on the first connecting steel plate of connector one, and the bottom horizontal bar of connector three is placed in the groove of the first U-shaped steel slot and the second U-shaped steel slot of connector one; when connector three is connected to connector two, the screw connector passes through the mounting hole on the triangular steel connector and the mounting hole on the second connecting steel plate of connector two, and the bottom horizontal bar of connector three is placed in the groove of the first U-shaped steel slot of connector two.

Images