Rapid construction method for super-thick reinforced concrete slope protection

Abstract

The invention discloses a rapid construction method for an ultra-thick reinforced concrete slope protection, and relates to the field of slope stabilization. The rapid construction method for the ultra-thick reinforced concrete slope protection comprises the steps that reinforced concrete slope panels are prefabricated, anchor rods are installed on the slope surface of the slope, cushion blocks are arranged, the reinforced concrete slope panels are arranged on the tops of the cushion blocks at intervals, and the sum of the thickness of the reinforced concrete slope panels and the distance between the reinforced concrete slope panels and the surface of the slope surface of the slope meets the designed thickness of the slope surface; after all the reinforced concrete slope panels are connected through steel bars in a binding mode, concrete is poured, the concrete is filled between the reinforced concrete slope panels and the slope surface of the slope and between all the reinforced concrete slope panels, and the concrete is vibrated compactly; and the step of pouring the concrete after laying the upper-layer concrete slab is repeated until the construction of the super-thick reinforced concrete slope protection is completed. According to the rapid construction method for the ultra-thick reinforced concrete slope protection, the construction period can be greatly shortened while the structural strength, stability and durability of the slope are guaranteed, and therefore the construction cost is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of slope stability, and in particular to a method for rapid construction of ultra-thick reinforced concrete slope protection. Background Art

[0002] In order to adapt to the mountain area during the construction process, the building needs to be built against the mountain. At this time, the main building is mostly surrounded by mountain slopes, which are sometimes large and steep. In order to prevent landslides and collapses, the slopes need to be hardened; however, when the slope is relatively large, the thickness of the protective surface is relatively thick. If on-site shotcrete construction is used, layered construction is required, the construction period is long, and the shotcrete will slide down due to gravity during spraying, forming cracks and shortening the service life of the slope.

[0003] The current existing high slope ultra-thick concrete construction method generally adopts the method of first constructing fixed anchor rods and laying steel mesh and concrete retaining mesh, and then pouring the first layer of concrete for covering and curing. After the concrete reaches the required strength, the second layer of concrete is poured and covered for curing, and so on until the slope construction is completed. This slope concrete construction method has a long construction period, high cost, and the slope quality is not easy to guarantee and is prone to cracking, which makes it difficult to meet construction needs. Summary of the invention

[0004] The purpose of this application is to provide a rapid construction method for ultra-thick reinforced concrete slope protection, which can greatly shorten the construction period while ensuring the strength, stability and durability of the slope structure, thereby effectively reducing the project cost.

[0005] This application is implemented as follows: The present application provides a method for rapid construction of ultra-thick reinforced concrete slope protection, comprising the following steps: Divide the slope surface into multiple areas, prefabricate reinforced concrete slope panels according to the area and shape of each area, and then maintain them; Install anchor rods on the slope; According to the thickness of the reinforced concrete slope panel, pads are arranged at intervals on the slope surface, and then the reinforced concrete slope panels are arranged at intervals on the top of multiple pads, and the distance between the reinforced concrete slope panel and the slope surface is adjusted so that the sum of the thickness of the reinforced concrete slope panel and the distance between the reinforced concrete slope panel and the slope surface meets the design thickness of the slope surface; Connect each reinforced concrete slope panel by tying steel bars; Pour concrete on the slope surface, fill the space between each reinforced concrete slab and the slope surface and between each reinforced concrete slab and vibrate to make it dense; After the concrete reaches the required strength, the steps of laying the upper concrete slab and then pouring concrete are repeated until the construction of the ultra-thick reinforced concrete slope protection is completed.

[0006] In some optional implementation schemes, when prefabricating the reinforced concrete slope slab, the thickness of the reinforced concrete slope slab is made 100-180 mm smaller than the designed thickness of the slope surface.

[0007] In some optional implementation schemes, after each reinforced concrete slope slab is arranged on top of a plurality of pads, the flatness of the reinforced concrete slope slab and the spacing between each reinforced concrete slope slab are adjusted.

[0008] In some optional implementation schemes, after pouring concrete on the slope surface, a formwork is laid on the concrete surface poured between two adjacent reinforced concrete slope panels for compaction, and is removed after the concrete has initially set.

[0009] In some optional embodiments, after pouring concrete on the slope surface, the concrete surface poured between two adjacent reinforced concrete slope panels is covered with plastic film and watered for curing.

[0010] In some optional embodiments, when adjusting the distance between the reinforced concrete slope panel and the slope surface, the depth of the pad inserted into the slope surface is adjusted.

[0011] In some optional implementation schemes, after arranging pads at intervals on the surface of the slope according to the thickness of the reinforced concrete slope panel, two adjacent pads are connected by steel bars.

[0012] In some optional embodiments, excavation, leveling and compaction operations are performed on the slope surface before installing anchor bolts.

[0013] The beneficial effects of the present application are as follows: the ultra-thick reinforced concrete slope protection rapid construction method provided by the present application comprises the following steps: dividing the slope surface into multiple areas, prefabricating reinforced concrete slope panels according to the area and shape of each area and then maintaining them; installing anchor rods on the slope surface; arranging pads at intervals on the slope surface according to the thickness of the reinforced concrete slope panels, then arranging each reinforced concrete slope panel at intervals on the top of multiple pads, adjusting the distance between the reinforced concrete slope panel and the slope surface so that the sum of the thickness of the reinforced concrete slope panel and the distance between the reinforced concrete slope panel and the slope surface meets the slope surface design thickness; connecting each reinforced concrete slope panel by steel bar binding; pouring concrete on the slope surface so that concrete is filled between each reinforced concrete slope panel and the slope surface and between each reinforced concrete slope panel and vibrated to make it dense; after the concrete strength reaches the required strength, repeating the steps of laying the upper concrete slab and then pouring concrete until the ultra-thick reinforced concrete slope protection is completed. The ultra-thick reinforced concrete slope protection rapid construction method provided in the present application can greatly shorten the construction period while ensuring the strength, stability and durability of the slope structure, thereby effectively reducing the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of a process for rapid construction of ultra-thick reinforced concrete slope protection provided in an embodiment of the present application; Figure 2 A schematic diagram of the local structure when each reinforced concrete slope panel is arranged at intervals on the slope surface in the ultra-thick reinforced concrete slope protection rapid construction method provided in an embodiment of the present application; Figure 3 A schematic diagram of a partial cross-sectional structure of a reinforced concrete slope panel supported by pads in a rapid construction method for ultra-thick reinforced concrete slope protection provided in an embodiment of the present application.

[0016] In the figure: 100, reinforced concrete slope panel; 110, anchor rod; 120, pad; 130, steel bar; 140, formwork; 200, slope. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The features and performance of the ultra-thick reinforced concrete slope protection rapid construction method of the present application are further described in detail below in conjunction with the embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the present application provides a method for rapid construction of ultra-thick reinforced concrete slope protection, comprising the following steps: Step 1: Divide the slope surface into multiple areas according to the area of ​​the slope 200 on the slope 200 drawing, and prefabricate reinforced concrete slope panels 100 in the processing plant according to the area and shape of each area, and then maintain them until the strength meets the requirements for standby use; wherein, when prefabricating the reinforced concrete slope panels 100, the thickness of the reinforced concrete slope panels 100 is made 100-180mm smaller than the design thickness of the slope surface.

[0026] Step 2: excavating, leveling and compacting the slope surface, and then installing anchor rods 110 arranged at intervals on the slope surface; Step 3: arrange the pads 120 at intervals on the surface of the slope according to the thickness of the reinforced concrete slope panel 100, and then arrange the reinforced concrete slope panels 100 at intervals on the top of the pads 120, adjust the flatness of the reinforced concrete slope panel 100, the distance between the reinforced concrete slope panel 100 and the surface of the slope, and the distance between each reinforced concrete slope panel 100, so that the sum of the thickness of the reinforced concrete slope panel 100 and the distance between the reinforced concrete slope panel 100 and the surface of the slope meets the design thickness of the slope; optionally, when adjusting the distance between the reinforced concrete slope panel 100 and the surface of the slope, adjust the depth of the pad 120 inserted into the surface of the slope.

[0027] Step 4: Bind and connect the reinforced concrete slope panels 100 with the steel bars 130 , and connect two adjacent pads 120 with steel bars.

[0028] Step 5: pour concrete on the slope surface, fill concrete between each reinforced concrete slope panel 100 and the slope surface and between each reinforced concrete slope panel 100, and compact it with a vibrating rod, lay a template 140 on the concrete surface poured between two adjacent reinforced concrete slope panels 100 for compaction, remove it after the concrete is initially set, and cover the concrete surface poured between two adjacent reinforced concrete slope panels 100 with a plastic film and sprinkle water for maintenance; Step 6: After the concrete strength reaches a certain level, lay the upper concrete slab on the surface of each reinforced concrete slope panel 100 and the concrete surface poured between each reinforced concrete slope panel 100, then pour concrete and repeat this step when necessary until the super-thick reinforced concrete slope protection is completed.

[0029] The ultra-thick reinforced concrete slope protection rapid construction method provided in the embodiment of the present application introduces factory prefabrication technology when facing complex slope concrete construction. By analyzing the design drawings of the slope 200 in detail in advance, the slope is accurately divided and blocked, and the geometric dimensions and quantity of the prefabricated reinforced concrete slope panels 100 are determined accordingly. It can ensure that the height of each prefabricated reinforced concrete slope panel 100 is standardized and prefabricated in advance in the factory. The production of the reinforced concrete slope panel 100 can be completed while the slope is leveled and the anchor rods 110 are installed. This construction method can significantly improve work efficiency, and at the same time ensure the quality and consistency of the production of the reinforced concrete slope panel 100, which not only ensures the quality of the project, reduces the maintenance cost of concrete, improves construction efficiency, but also greatly shortens the construction period, effectively reducing the project cost.

[0030] At the same time, during the installation process of the reinforced concrete slope panel 100, a concrete pad 120 is placed in advance on the surface of the excavated slope surface to support the reinforced concrete slope panel 100. This construction method forms a certain gap between the reinforced concrete slope panel 100 and the surface of the slope surface. When pouring concrete, the blocking effect of the reinforced concrete slope panel 100 and the pad 120 can prevent the newly poured concrete from sliding down due to gravity and forming cracks. After the concrete pouring is completed, the reinforced concrete slope panel 100 and the newly poured concrete are naturally integrated into an organic whole, which significantly improves the stability of the slope surface, not only solves the flow problem during concrete pouring, but also enhances the stability and durability of the final slope structure.

[0031] The ultra-thick reinforced concrete slope protection rapid construction method provided by the embodiment of the present application can be cast and formed in one time, avoiding the need for secondary or multiple concrete pouring, greatly simplifying the construction process, and reducing the maintenance link. The construction quality of the newly poured concrete is significantly improved, ensuring the overall quality standard of the project; at the same time, the concrete surface poured between two adjacent reinforced concrete slope panels 100 is laid with a template 140 for compaction and is removed after the concrete is initially set. The template 140 can be used to define the position of the newly poured concrete between the two adjacent reinforced concrete slope panels 100, so as to avoid the newly poured concrete from sliding down due to gravity during pouring and causing concrete cracks; when adjusting the distance between the reinforced concrete slope panel 100 and the slope surface, the depth of the pad 120 inserted into the slope surface is adjusted, so that the position of the reinforced concrete slope panel 100 can be quickly adjusted to the right position, ensuring that each reinforced concrete slope panel 100 has the required thickness of reinforced concrete slope protection obtained by concrete pouring; the reinforced concrete slope panels 100 are tied and connected by the steel bars 130, so that each reinforced concrete slope panel 100 can be connected together to improve the structural strength and stability of the poured reinforced concrete slope protection.

[0032] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A method for rapid construction of ultra-thick reinforced concrete slope protection, characterized in that: The following steps are involved: Divide the slope surface into multiple areas, prefabricate reinforced concrete slope panels according to the area and shape of each area, and then maintain them; installing anchor rods on the slope surface; Arrange pads at intervals on the slope surface according to the thickness of the reinforced concrete slope panels, then arrange the reinforced concrete slope panels at intervals on the tops of the plurality of pads, and adjust the distance between the reinforced concrete slope panels and the slope surface so that the sum of the thickness of the reinforced concrete slope panels and the distance between the reinforced concrete slope panels and the slope surface meets the slope surface design thickness; Connecting the reinforced concrete slope panels by tying steel bars; Pouring concrete on the surface of the slope, so that the concrete is filled between each reinforced concrete slab and the surface of the slope and between each reinforced concrete slab and vibrated to make it dense; After the concrete reaches the required strength, the steps of laying the upper concrete slab and then pouring concrete are repeated until the construction of the ultra-thick reinforced concrete slope protection is completed.

2. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: When the reinforced concrete slope panel is prefabricated, the thickness of the reinforced concrete slope panel is made 100-180 mm smaller than the designed thickness of the slope surface.

3. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: After arranging each of the reinforced concrete slope panels on top of a plurality of the pads, the flatness of the reinforced concrete slope panels and the spacing between each of the reinforced concrete slope panels are adjusted.

4. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: After pouring concrete on the side slope surface, a formwork is laid on the concrete surface poured between two adjacent reinforced concrete slope panels for compaction, and is removed after the concrete has initially set.

5. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: After pouring concrete on the side slope surface, the concrete surface poured between two adjacent reinforced concrete slope panels is covered with a plastic film and watered for curing.

6. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: When adjusting the distance between the reinforced concrete slope panel and the side slope surface, the depth of the pad inserted into the side slope surface is adjusted.

7. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: After arranging pads at intervals on the surface of the slope according to the thickness of the reinforced concrete slope panel, two adjacent pads are connected by steel bars.

8. The ultra-thick reinforced concrete slope protection rapid construction method according to claim 1 is characterized in that: Before installing anchor rods on the slope surface, excavation, leveling and compaction operations are performed.

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