Rock-anchored beam concrete pouring supporting platform and rock-anchored beam concrete pouring method

Abstract

The invention relates to a rock-anchored beam concrete pouring supporting platform and a rock-anchored beam concrete pouring method. The supporting platform comprises a concrete cushion layer which is laid on a bedrock surface at the bottom of a rock-anchored beam; the anchor bar set comprises a first anchor bar arranged at the first position of the bottom of the rock-anchored beam, a second anchor bar arranged at the second position of the top of the rock-anchored beam and third anchor bars arranged on the straight edge side and the slope side of the rock-anchored beam side wall respectively. The scaffold is arranged below the rock-anchored beam and is fixed on the concrete cushion layer; the concrete formworks abut against the third anchor bars correspondingly. The triangular support is arranged at the top end of the scaffold and abuts against the outer side of the concrete formwork arranged on the slope side. The back ridges abut against the outer sides of the concrete formworks arranged on the straight edge sides, and the two ends of the back ridges are connected to the first anchor bars and the second anchor bars correspondingly. The anchor bar set is fixed to the bottom, the top and the side wall of the rock anchor beam, the concrete formwork abuts against a third anchor bar of the side wall, the triangular support abuts against the slope side of the side wall, the back arris abuts against the straight side of the side wall and is fixed, and the pouring quality and efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of rock anchor beam concrete pouring, and in particular to a rock anchor beam concrete pouring support platform and a rock anchor beam concrete pouring method. Background Art

[0002] With the advancement of underground engineering construction technology, the steel formwork trolley method and the full-height scaffolding method (support method) are more common in the concrete pouring of rock anchor beams in underground powerhouses. However, the steel formwork trolley method is gradually being phased out due to its low efficiency and long construction period.

[0003] In related technologies, scaffolding construction typically uses a combination of coupler-type steel pipe scaffolding, internal tie rods, exposed concrete formwork, and square timber to support the concrete formwork. However, this scaffolding construction method presents numerous problems. For one thing, tie rod holes must be drilled into the concrete surface, resulting in poor surface flatness. Furthermore, exposed concrete formwork cannot be recirculated, leading to high costs for subsequent concrete defect repairs and uncertain quality. Furthermore, rock anchor beam formwork typically utilizes composite steel or wooden formwork. Slight deformation of these formworks can lead to loose joints and misalignment, seriously impacting the concrete's physical and surface quality.

[0004] In summary, the existing rock anchor beam concrete pouring platform has problems such as low construction efficiency and poor pouring effect. Summary of the Invention

[0005] Based on this, it is necessary to provide a rock anchor beam concrete pouring support platform and a rock anchor beam concrete pouring method to address the problems of low construction efficiency and poor pouring effect in the existing rock anchor beam concrete pouring platform.

[0006] A rock anchor beam concrete pouring support platform, comprising:

[0007] Concrete pad, laid on the bedrock surface at the bottom of the rock anchor beam;

[0008] An anchor bar group, comprising a first anchor bar provided at a first position at the bottom of the rock anchor beam, a second anchor bar provided at a second position at the top of the rock anchor beam, and a third anchor bar provided at a straight side and a slope side of a side wall of the rock anchor beam respectively;

[0009] a scaffold, arranged below the rock anchor beam and fixed on the concrete cushion;

[0010] The concrete formwork is respectively abutted against the third anchor bar;

[0011] A triangular brace is provided at the top of the scaffolding and abuts against the outer side of the concrete formwork provided on the slope side;

[0012] The back rib abuts against the outer side of the concrete formwork provided on the straight side, and the two ends of the back rib are respectively connected to the first anchor bar and the second anchor bar.

[0013] In one embodiment, the first position is 35 cm downward from the bottom of the rock anchor beam, and the second position is 35 cm upward from the top of the rock anchor beam.

[0014] In one embodiment, the spacing between multiple first anchor bars or multiple second anchor bars or multiple third anchor bars is 0.6m; the length of the first anchor bar, the second anchor bar and the third anchor bar are all 1.5m, the diameter is 20mm, and they are exposed 0.3m above the surface of the rock anchor beam.

[0015] In one embodiment, the concrete formwork is a mortise and tenon joint structure, and is detachably connected to the back rib.

[0016] In one embodiment, the mortise and tenon joint structure includes a protrusion provided on the edge of one concrete formwork and a recessed portion provided on the edge of another concrete formwork, and the protrusions and recessed portions of two adjacent concrete formworks are engaged with each other.

[0017] In one embodiment, the back rib is a double-channel steel structure, which is made by splicing two channel steels and fixed by connecting steel bars; the spacing between multiple connecting steel bars is 0.5m, and the diameter of the connecting steel bars is 22mm.

[0018] In one embodiment, the triangular brace and the back rib are both made of channel steel, and the specification of the channel steel is No. 14 channel steel.

[0019] In one embodiment, it further comprises a pull rod, one end of which is connected to the back rib, and the other end is fixed to the third anchor bar; the diameter of the pull rod is 16 mm.

[0020] In one embodiment, the scaffolding is a socket-and-spigot type scaffolding, and the triangular support is fixed to the top of the socket-and-spigot type scaffolding through a steel pipe; the outer diameter of the steel pipe is 48.3 mm and the wall thickness is 3.6 mm.

[0021] The above-mentioned rock anchor beam concrete pouring support platform, by laying a concrete cushion layer, fixes the anchor bar group to the bottom, top and side wall of the rock anchor beam respectively, and the concrete formwork abuts the third anchor bar of the side wall of the anchor bar group. By fixing the triangular support to the scaffolding and abutting the slope side of the side wall, the back rib abuts the straight side of the side wall and is fixed to the first anchor bar and the second anchor bar, it effectively solves the problems of poor concrete flatness and low construction efficiency caused by the unstable support platform, and improves the quality and efficiency of rock anchor beam concrete pouring.

[0022] According to another object of the present invention, a method for pouring concrete for a rock anchor beam is provided, comprising the following steps:

[0023] Concrete pad is poured on the bedrock surface at the bottom of the rock anchor beam;

[0024] Install the first anchor bar, the second anchor bar and the third anchor bar at the first position at the bottom of the rock anchor beam, the second position at the top and the side wall respectively;

[0025] Fix the socket-and-spigot type disc buckle scaffolding to the concrete cushion layer, and fix the triangular support to the top of the socket-and-spigot type disc buckle scaffolding through the steel pipe;

[0026] Place one side of the triangular brace against the slope side of the rock anchor beam side wall;

[0027] The concrete formwork of the mortise and tenon structure is fixed to the straight side of the rock anchor beam side wall and reinforced with the back rib of the double-slot steel structure;

[0028] Pour plain concrete to form rock anchor beams.

[0029] The above-mentioned rock anchor beam concrete pouring method can effectively solve the problems of poor pouring surface flatness and low construction efficiency existing in traditional construction methods, thereby improving the quality and efficiency of rock anchor beam concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of the support platform for pouring concrete into the rock anchor beam.

[0031] Figure 2 This is a side view of the back rib.

[0032] Figure 3 Schematic diagram of the structure of concrete formwork.

[0033] Figure 4 This is a flow chart of the rock anchor beam concrete pouring method.

[0034] In the figure: 10, concrete cushion; 21, first position; 22, second position; 23, side wall; 30, concrete formwork; 31, protrusion; 32, recess; 40, triangular brace; 50, back rib; 51, connecting steel bar; 60, tie rod; 70, socket-type disc scaffolding; 71, steel pipe. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0041] Traditional rock anchor beam concrete pouring support structures lack stability and load-bearing capacity, making them difficult to meet the requirements of complex construction environments. This can lead to formwork displacement and deformation during construction, which in turn affects the quality of the concrete pour. Furthermore, the installation and disassembly of the support structure is complex, labor-intensive, and time-consuming, reducing construction efficiency and increasing costs.

[0042] See Figure 1 , Figure 1 A schematic structural diagram of a rock anchor beam concrete pouring support platform in one embodiment of the present application is shown.

[0043] In order to solve the above technical problems, an embodiment of the present application provides a rock anchor beam concrete pouring support platform, including a concrete cushion layer 10, an anchor bar group, a scaffolding, a concrete formwork 30, a triangular support 40 and a back rib 50, which can improve the quality of concrete pouring and improve construction efficiency, and is suitable for the concrete pouring construction of rock anchor beams in underground projects such as underground powerhouses of hydropower stations.

[0044] In this embodiment, the concrete cushion layer 10 is laid on the bedrock surface at the bottom of the rock anchor beam; the anchor bar group includes a first anchor bar provided at a first position 21 at the bottom of the rock anchor beam, a second anchor bar provided at a second position 22 at the top of the rock anchor beam, and a third anchor bar provided on the straight side and the slope side of the rock anchor beam side wall 23 respectively; the scaffolding is provided below the rock anchor beam and fixed on the concrete cushion layer 10; the concrete formwork 30 is respectively abutted against the third anchor bar; the triangular support 40 is provided at the top of the scaffolding and abuts against the outer side of the concrete formwork 30 provided on the slope side; the back rib 50 abuts against the outer side of the concrete formwork 30 provided on the straight side, and the two ends of the back rib 50 are respectively connected to the first anchor bar and the second anchor bar.

[0045] A concrete cushion layer 10 is laid on the bedrock surface at the bottom of the rock anchor beam. The concrete grade is C20 and the thickness is 20 cm. This provides a stable foundation for the entire support platform, ensuring its stability during the concrete pouring process. It effectively prevents platform shaking caused by uneven bedrock, providing reliable support for subsequent construction.

[0046] The anchor bar group includes a first anchor bar located at a first position 21 at the bottom of the rock anchor beam, a second anchor bar located at a second position 22 at the top of the rock anchor beam, and third anchor bars located on both the straight side and the slope side of the rock anchor beam sidewall 23. The first position 21 is 35 cm below the bottom of the rock anchor beam, and the second position 22 is 35 cm above the top of the rock anchor beam.

[0047] The spacing between multiple first anchor bars, multiple second anchor bars, or multiple third anchor bars is 0.6m. Each first, second, and third anchor bar is 1.5m long and 20mm in diameter, protruding 0.3m above the surface of the rock anchor beam. Anchor bar groups arranged according to these spacing and specifications ensure that during concrete pouring, the anchor bar groups firmly connect the support structure to the rock anchor beam, withstand the various forces generated during the concrete pouring, and ensure construction safety.

[0048] The scaffolding is set below the rock anchor beam and fixed on the concrete cushion layer 10. The scaffolding is built with steel pipe 71 scaffolding to provide a foundation for the subsequent concrete formwork 30 support.

[0049] The concrete formwork 30 is abutted against the third anchor bars. Concrete formwork 30 is made of steel, which features a smooth surface, high strength, and resistance to deformation. During installation, the concrete formwork 30 is abutted against the third anchor bars, and the anchor bars secure the concrete formwork 30 in its correct position. Using steel formwork for concrete pouring improves the surface smoothness of the concrete and effectively reduces subsequent repair work.

[0050] The triangular brace 40 is installed at the top of the scaffolding, abutting the outside of the concrete formwork 30 on the slope side. Made of angle steel, the triangular brace 40 is installed at the top of the scaffolding, tightly abutting the outside of the concrete formwork 30 on the slope side. This provides additional support for the concrete formwork 30, allowing it to withstand lateral pressure from the concrete during pouring and preventing deformation.

[0051] The back rib 50 abuts the outside of the concrete form 30 on the straight side, with its ends connected to the first and second anchor bars. Made of square timber, the back rib 50 abuts the outside of the concrete form 30 on the straight side and is secured to the first and second anchor bars via connectors, further enhancing the stability and support of the concrete form 30.

[0052] In the specific implementation process, the concrete cushion layer 10 is first laid, and anchor bars are installed on the bedrock surface. A scaffolding is then erected and secured to the concrete cushion layer 10. The concrete formwork 30 is then installed, abutting the third anchor bar. A triangular brace 40 is installed at the top of the scaffolding, abutting the outer side of the concrete formwork 30 on the sloped side. Finally, the back rib 50 is installed, its ends connected to the first and second anchor bars, respectively, completing the construction of the support platform for pouring concrete for the rock anchor beam.

[0053] The above-mentioned rock anchor beam concrete pouring support platform can effectively solve the problems existing in traditional construction methods such as poor concrete surface flatness, unstable concrete quality, and low construction efficiency caused by cumbersome construction steps, and improve the quality and efficiency of rock anchor beam concrete pouring.

[0054] Combine Figure 3 As shown, Figure 3 Schematic diagram of the structure of the concrete formwork 30 provided in an embodiment of the present application. In some embodiments, the concrete formwork 30 is a mortise and tenon joint structure, and is detachably connected to the back rib 50.

[0055] Specifically, the mortise and tenon joint structure includes a protrusion 31 provided on the edge of one concrete form 30 and a recessed portion 32 provided on the edge of the other concrete form 30. The protrusions 31 and recessed portions 32 of two adjacent concrete forms 30 engage with each other. The protrusions 31 and recessed portions 32 are polygonal structures. The protrusion 31 is a trapezoidal projection, while the recessed portion 32 is also a trapezoidal groove. The two oblique edges of the protrusion abut against the two oblique edges of the groove, achieving a tight connection while also providing compression and limiting, preventing displacement between the protrusion 31 and the recessed portion 32 and improving joint stability.

[0056] The mortise and tenon joint structure, in which the protrusions 31 and recesses 32 interlock, creates a minimal gap, making the concrete form 30 more tightly assembled. This effectively prevents concrete leakage during pouring and ensures concrete quality. Furthermore, the mortise and tenon joint structure's detachable connection between the concrete form 30 and the back rib 50 facilitates installation and removal of the concrete form 30, improving construction efficiency and saving construction time.

[0057] Combine Figure 2 As shown, Figure 2 1 is a side view of a back rib 50 provided in an embodiment of the present application. In some embodiments, the back rib 50 is a double-channel steel structure, and the back rib 50 is made by splicing two channel steels and fixed by connecting steel bars 51.

[0058] Specifically, the back rib 50 is constructed by splicing two No. 14 channel steels together and securing them with connecting bars 51. The No. 14 channel steel has a cross-sectional height of 140 mm, a leg width of 58 mm, and a waist thickness of 6 mm. The connecting bars 51 are spaced 0.5 m apart and have a diameter of 22 mm. The double-channel steel structure of the back rib 50 can withstand the lateral pressure generated during concrete pouring, ensuring the stability of the concrete formwork 30.

[0059] When two channel steels are spliced ​​together, the connecting steel bars 51 are evenly arranged at the splicing location, and the connecting steel bars 51 are fixed to the channel steels by welding or other methods to ensure a firm connection.

[0060] In one embodiment, the triangular support 40 is made of channel steel, and the specification of the channel steel is No. 14 channel steel.

[0061] Specifically, the triangular brace 40 is made of No. 14 channel steel. The cross-sectional height of the No. 14 channel steel is 140 mm, the leg width is 58 mm, and the waist thickness is 6 mm. The triangular brace 40 is installed at the top of the scaffolding, abutting the outside of the concrete formwork 30 installed on the sloped side of the rock anchor beam sidewall 23. This provides support for the installation of the concrete formwork 30 and ensures its stability.

[0062] Combine Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the rock anchor beam concrete pouring support platform provided in one embodiment of the present application. In some embodiments, a tie rod 60 is further included, one end of which is connected to the back rib 50 and the other end is fixed to the third anchor bar; the diameter of the tie rod 60 is 16 mm.

[0063] Specifically, one end of the tie rod 60 is connected to the back rib 50, and the other end is fixed to the third anchor bar. The diameter of the tie rod 60 is 16 mm. The tie rod 60 can absorb the lateral pressure exerted by the concrete on the formwork, preventing outward expansion or displacement of the formwork, thereby ensuring the accuracy and surface quality of the concrete pour. The tie rod 60 itself has a certain degree of deformability, which can adapt to minor deformations during construction and improve the overall stability of the support platform.

[0064] In one embodiment, the scaffolding is a socket-type disc-type scaffolding 70, and the triangular support 40 is fixed to the top of the socket-type disc-type scaffolding 70 through a steel pipe 71; the outer diameter of the steel pipe 71 is 48.3 mm and the wall thickness is 3.6 mm.

[0065] Specifically, the socket-and-spigot type disc buckle scaffold 70 is provided below the rock anchor beam and fixed on the concrete cushion 10. The socket-and-spigot type disc buckle scaffold 70 has a stable structure, a strong bearing capacity, and is easy to disassemble and assemble, thereby improving construction efficiency.

[0066] The triangular brace 40 is secured to the top of the socket-and-spigot scaffold 70 via a steel pipe 71 with an outer diameter of 48.3 mm and a wall thickness of 3.6 mm. It abuts the outside of the concrete formwork 30 on the slope side. The steel pipe 71 is detachably connected to the top of the socket-and-spigot scaffold 70 via fasteners. The triangular brace 40 is also detachably connected to the steel pipe 71 via fasteners. The triangular brace 40 abuts tightly against the outside of the concrete formwork 30 on the slope side, preventing deformation during concrete pouring.

[0067] Combine Figure 4 As shown, Figure 4 This is a flow chart of a rock anchor beam concrete pouring method provided in one embodiment of the present application. In some embodiments, a rock anchor beam concrete pouring method is also provided, which is applied to the rock anchor beam concrete pouring support platform described above, and includes the following steps:

[0068] S1, pouring a concrete cushion layer 10 on the bedrock surface at the bottom of the rock anchor beam;

[0069] S2, installing the first anchor bar, the second anchor bar and the third anchor bar at the first position 21 at the bottom of the rock anchor beam, the second position 22 at the top and the side wall 23 respectively;

[0070] S3, fixing the socket-and-spigot type disc buckle scaffolding 70 to the concrete cushion 10, and fixing the triangular support 40 to the top of the socket-and-spigot type disc buckle scaffolding 70 through the steel pipe 71;

[0071] S4, placing one side of the triangular support 40 against the slope side of the rock anchor beam side wall 23;

[0072] S5. Fix the concrete formwork 30 of the mortise and tenon structure to the straight side of the rock anchor beam side wall 23 and reinforce it with the back rib 50 of the double-slot steel structure;

[0073] S6. Pour plain concrete to form a rock anchor beam.

[0074] A concrete cushion layer 10 was poured on the bedrock surface at the bottom of the rock anchor beam. The concrete grade was C20, and the thickness was controlled at 20 cm. During the pouring process, a layered method was used to ensure sufficient concrete compaction and effectively prevent the support platform from shaking due to uneven bedrock.

[0075] Install the first anchor bar at the bottom of the rock anchor beam at the first location 21, the second anchor bar at the top at the second location 22, and the third anchor bar at the side wall 23. The first location 21 is 35 cm below the bottom of the rock anchor beam, and the second location 22 is 35 cm above the top of the rock anchor beam. The spacing between multiple first anchor bars, multiple second anchor bars, or multiple third anchor bars is 0.6 m. Each of the first, second, and third anchor bars is 1.5 m long and 20 mm in diameter, protruding 0.3 m above the surface of the rock anchor beam. Drill holes into the bedrock surface at the aforementioned spacing, insert the anchor bars, and secure them with an anchoring agent.

[0076] A socket-and-spigot-type disc-type scaffolding 70 is fixed to the concrete cushion 10. A triangular brace 40 is fixed to the top of the socket-and-spigot-type disc-type scaffolding 70 via a steel pipe 71 with an outer diameter of 48.3 mm and a wall thickness of 3.6 mm. The steel pipe 71 is connected to the top of the socket-and-spigot-type disc-type scaffolding 70 via fasteners, and the triangular brace 40 is also connected to the steel pipe 71 via fasteners.

[0077] One side of the triangular brace 40 is abutted against the slope side of the rock anchor beam side wall 23 to prevent displacement or deformation during the concrete pouring process. The triangular brace 40 is made of No. 14 channel steel.

[0078] The concrete formwork 30 with a mortise and tenon structure is fixed to the straight side of the rock anchor beam sidewall 23. The concrete formwork 30 is reinforced with a back rib 50 made of double-channel steel. The back rib 50 is made of two channel steels spliced ​​together and secured with connecting bars 51. The spacing between the multiple connecting bars 51 is 0.5m, and the diameter of the connecting bars 51 is 22mm. The back rib 50 is made of No. 14 channel steel to withstand the lateral pressure generated during concrete pouring.

[0079] After completing the above steps, cast the exposed concrete to form a smooth rock anchor beam. This is done in layers, with each layer controlled to a thickness of 30cm-50cm. Vibrate the concrete using an insert vibrator, ensuring that the concrete is dense and free of bubbles.

[0080] As mentioned above, the rock anchor beam concrete pouring method can effectively solve the problems of poor pouring surface flatness and low construction efficiency existing in traditional construction methods, and improve the quality and efficiency of rock anchor beam concrete pouring.

[0081] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A rock anchor beam concrete pouring support platform, characterized in that: include: A concrete cushion layer (10) is laid on the bedrock surface at the bottom of the rock anchor beam; An anchor bar group includes a first anchor bar provided at a first position (21) at the bottom of the rock anchor beam, a second anchor bar provided at a second position (22) at the top of the rock anchor beam, and a third anchor bar provided at the straight side and the slope side of the rock anchor beam side wall (23); A scaffold is provided below the rock anchor beam and fixed on the concrete cushion layer (10); Concrete formwork (30), respectively abutting against the third anchor bars; A triangular support (40) is provided at the top of the scaffolding and abuts against the outer side of the concrete formwork (30) provided on the slope side; The back rib (50) abuts against the outer side of the concrete formwork (30) provided on the straight side, and the two ends of the back rib (50) are respectively connected to the first anchor bar and the second anchor bar.

2. The rock anchor beam concrete pouring support platform according to claim 1, characterized in that: The first position (21) is 35 cm downward from the bottom of the rock anchor beam, and the second position (22) is 35 cm upward from the top of the rock anchor beam.

3. The rock anchor beam concrete pouring support platform according to claim 2, characterized in that: The spacing between the first anchor bars, the second anchor bars, or the third anchor bars is 0.6 m; the lengths of the first anchor bars, the second anchor bars, and the third anchor bars are all 1.5 m, with diameters of 20 mm, and are exposed 0.3 m above the surface of the rock anchor beam.

4. The rock anchor beam concrete pouring support platform according to claim 2 or 3, characterized in that: The concrete formwork (30) is a mortise and tenon joint structure and is detachably connected to the back rib (50).

5. The rock anchor beam concrete pouring support platform according to claim 4, characterized in that: The mortise and tenon joint structure comprises a protruding portion (31) provided on the edge of one concrete formwork (30), and a recessed portion (32) provided on the edge of another concrete formwork (30), wherein the protruding portions (31) and the recessed portions (32) of two adjacent concrete formworks (30) are engaged and connected.

6. The rock anchor beam concrete pouring support platform according to claim 5, characterized in that: The back rib (50) is a double-channel steel structure, and the back rib (50) is made by splicing two channel steels and fixed by connecting steel bars (51); the spacing between multiple connecting steel bars (51) is 0.5m, and the diameter of the connecting steel bars (51) is 22mm.

7. The rock anchor beam concrete pouring support platform according to claim 6, characterized in that: The triangular support (40) and the back rib (50) are both made of channel steel, and the specification of the channel steel is No. 14 channel steel.

8. The rock anchor beam concrete pouring support platform according to claim 6, characterized in that: It also includes a pull rod (60), one end of which is connected to the back rib (50) and the other end is fixed to the third anchor bar; the diameter of the pull rod (60) is 16 mm.

9. The rock anchor beam concrete pouring support platform according to claim 2, characterized in that: The scaffold is a socket-type disc-type scaffold (70), and the triangular support (40) is fixed to the top end of the socket-type disc-type scaffold (70) through a steel pipe (71); the outer diameter of the steel pipe (71) is 48.3 mm and the wall thickness is 3.6 mm.

10. A method for pouring concrete for a rock anchor beam, characterized in that: The steps include: pouring a concrete cushion layer (10) on the bedrock surface at the bottom of the rock anchor beam; Installing a first anchor bar, a second anchor bar and a third anchor bar at a first position (21) at the bottom of the rock anchor beam, a second position (22) at the top and a side wall (23) respectively; The socket-type disc buckle scaffold (70) is fixed to the concrete cushion layer (10), and the triangular support (40) is fixed to the top of the socket-type disc buckle scaffold (70) through the steel pipe (71); Abutting one side of the triangular support (40) against the slope side of the rock anchor beam side wall (23); The concrete formwork (30) of the mortise and tenon structure is fixed to the straight side of the rock anchor beam side wall (23) and reinforced by the back rib (50) of the double-slot steel structure; Pour plain concrete to form rock anchor beams.

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