Method for rapid construction of drilling platform of support trestle in deep water bare rock area

Abstract

This application discloses a rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas, comprising the following steps: installing a guide frame; fixing one end of the guide frame to the main trestle bridge, with the guide frame perpendicular to the forward direction of the main trestle bridge; connecting the end of the guide frame away from the main trestle bridge to a positioning part including pre-reserved hole positions; laying out and positioning pile positions; driving steel pipe piles; installing a connecting system; the connecting system includes vertical rods, diagonal rods, and at least two horizontal rods; laying Bailey beams on the connecting system to construct a temporary working face, and constructing anchor piles; welding pile caps and placing distribution beams; transferring the Bailey beams to the distribution beams to complete the system conversion; and laying the bridge deck system. The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas provided in this specification utilizes the already constructed main trestle bridge for the construction of the drilling platform, which facilitates the unfolding of the working face, solves the problems of long anchor pile construction time and slow process conversion, and forms a continuous construction process, greatly improving construction efficiency and shortening the construction cycle.

Description

Technical Field

[0001] This manual relates to the field of bridge construction technology, and in particular to a rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas. Background Technology

[0002] In modern bridge construction, steel trestle bridges have become an indispensable auxiliary tool to meet the needs of transporting various construction resources such as personnel, materials, and machinery. Traditional drilling platforms, similar to trestle bridges, employ methods such as the "fishing" or "jacket" method, extending longitudinally forward. However, this approach suffers from problems such as difficulty in developing the working face, low construction efficiency, and long construction cycles.

[0003] Especially in deep-water, bare rock areas, after the steel pipe piles are driven, anchor piles need to be installed, followed by the installation of pile caps, distribution beams, and the superstructure, which is time-consuming and labor-intensive. After the main trestle bridge is completed, how to utilize the existing structural system and adopt more convenient construction methods to improve construction efficiency and quickly complete the drilling platform construction for the auxiliary trestle bridge is a problem worthy of attention. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, one of the objectives of this specification is to provide a rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas. By using the main trestle bridge that has already been constructed, the drilling platform for the trestle bridge can be constructed, which is conducive to the unfolding of the working face and solves the problems of long construction time and slow process conversion of anchor piles. The various processes can be carried out in a continuous flow, which greatly improves the construction efficiency and shortens the construction cycle.

[0005] To achieve the above objectives, this specification provides a rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas, comprising the following steps:

[0006] Install a guide frame; one end of the guide frame is fixed to the main trestle, and the guide frame is perpendicular to the forward direction of the main trestle; the end of the guide frame away from the main trestle is connected to a positioning part including a reserved hole.

[0007] Locate and position the piles; adjust the position of the positioning unit according to the pile positions.

[0008] Drive the steel pipe piles; drive the steel pipe piles into the reserved holes;

[0009] Install a connecting system; install the connecting system between adjacent steel pipe piles, the connecting system including a vertical rod, an inclined rod and at least two horizontal rods; the vertical rod and the inclined rod are arranged between the two horizontal rods, the horizontal rod is perpendicular to the steel pipe pile, and the vertical rod is parallel to the steel pipe pile;

[0010] A temporary working surface is constructed by laying Bailey beams on the connecting system and constructing anchor piles; the Bailey beams are placed on the crossbar located above, and the Bailey beams are arranged in a direction perpendicular to the forward movement of the main trestle bridge; a roadbed plate is laid on the Bailey beams to construct a temporary working surface; on the temporary working surface, the steel pipe piles are drilled using an impact drill, and after the impact reaches the designated elevation, the holes are cleaned, a reinforcing cage is placed, and the piles are poured.

[0011] Weld the pile cap and place the distribution beam; weld the pile cap to the top of the cut steel pipe pile, and after welding, place the distribution beam above the pile cap and weld it;

[0012] The Bailey beam is transferred to the distribution beam to complete the system conversion;

[0013] Lay the bridge deck system; lay the bridge deck panels on top of the Bailey beams.

[0014] In a preferred embodiment, during the step of installing the guide frame, a double-layered Bailey beam is pre-assembled using a flower rack, and the double-layered Bailey beam serves as the guide frame.

[0015] In a preferred embodiment, the guide frame and the main trestle are fixedly connected by bolts; the guide frame is located below the Bailey beam of the main trestle, and a pad is provided between the Bailey beam of the main trestle and the bolts.

[0016] In a preferred embodiment, in the step of driving steel pipe piles, a crawler crane is used in conjunction with an impact hammer to drive piles at the reserved hole positions; after the steel pipe piles at one location are driven, the guide frame is moved to another location in the forward direction of the main trestle bridge to drive the next steel pipe pile; when all steel pipe piles at the same pier location are driven, the step of installing the connection system is performed.

[0017] In a preferred embodiment, during the installation of the connection system, the vertical rod and the horizontal rod, the diagonal rod and the horizontal rod, and the horizontal rod and the steel pipe pile are all connected by welding. The vertical rod intersects with the two horizontal rods at the midpoints of the two horizontal rods respectively. One end of each of the two diagonal rods intersects with the upper horizontal rod at the midpoint of the upper horizontal rod. The other end of one diagonal rod intersects with the lower horizontal rod near the steel pipe pile, and the other end of the other diagonal rod intersects with the lower horizontal rod near the other steel pipe pile.

[0018] In a preferred embodiment, a corbel is provided below the connection between the upper crossbar and the steel pipe pile.

[0019] In a preferred embodiment, in the step of laying Bailey beams on the connecting system to construct a temporary working surface, 12 Bailey panels are arranged between every two steel pipe piles, and a first lateral limiter is welded between the Bailey beam and the crossbar.

[0020] In a preferred embodiment, in the step of laying Bailey beams on the connection system to construct a temporary working surface, adjacent roadbed plates are connected by welding steel plates; a second lateral limiter is welded between the roadbed plate and the Bailey beam, and the second lateral limiter is used to limit the roadbed plate.

[0021] In a preferred embodiment, before the step of transferring the Bailey beam to the distribution beam, a measurement and layout is performed on the distribution beam to determine the installation position of the Bailey beam and to install damping rubber sheets at the corresponding positions;

[0022] In the step of transferring the Bailey beam to the distribution beam, the Bailey beam includes multiple installation units, and the installation unit includes multiple sets of 321-type Bailey beams; the installation unit is lifted using a 150t crawler crane.

[0023] After the step of transferring the Bailey beam to the distribution beam, a Bailey beam lateral limiter is welded at a predetermined position on the distribution beam.

[0024] In a preferred embodiment, in the step of laying the bridge deck system, the bridge deck is made of C30 precast concrete slab, and the size of the precast slab is 8m×2m×0.2m; the precast slab is placed on the upper chord of the Bailey beam using a crawler crane.

[0025] Beneficial effects:

[0026] The rapid construction method for drilling platforms on trestle bridges in deep-water bare rock areas provided in this embodiment utilizes the already constructed main trestle bridge, transforming the traditional longitudinal advancement into a lateral (i.e., ...) approach using a single span as the basic unit. Figure 2 Advancing in the X direction (as shown below) enables continuous operation. During lateral advancement, Bailey bridge beams are temporarily placed using a connecting system to construct a temporary construction platform, serving as a temporary working surface for anchor pile construction. After the anchor piles are constructed, the pile caps and distribution beams are installed, and the Bailey bridge beams are transferred to the distribution beams, completing the system conversion. Finally, the bridge deck system is laid. Compared to traditional construction methods, this technical solution allows for the conversion of the main trestle bridge into a drilling platform for the auxiliary trestle bridge, which facilitates the unfolding of the working surface and solves problems such as long anchor pile construction time and slow process conversion. The various processes are executed in a continuous flow, greatly improving construction efficiency and shortening the construction cycle.

[0027] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope as a result.

[0028] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0029] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a flowchart illustrating the steps of a rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas, as provided in this embodiment.

[0032] Figure 2 To complete Figure 1 A schematic diagram of the planar structure of the guide frame and main trestle after step S10;

[0033] Figure 3 To complete Figure 1 A schematic diagram of the connection system and steel pipe piles after step S40 in the middle section;

[0034] Figure 4 for Figure 1 A schematic diagram of the structure after placing the Bailey beam in step S50;

[0035] Figure 5 for Figure 1 A schematic diagram of the structure after the roadbed plate is laid in step S50;

[0036] Figure 6 for Figure 1 A schematic diagram of the structure during impact drilling in step S50;

[0037] Figure 7 To complete Figure 1 Schematic diagram of the structure after step S60;

[0038] Figure 8 To complete Figure 1 Schematic diagram of the structure after step S70;

[0039] Figure 9 To complete Figure 1 Schematic diagram of the structure after step S80;

[0040] Figure 10 A three-dimensional structural diagram of the guide frame and main trestle;

[0041] Figure 11 This is an enlarged schematic diagram of the connection between the guide frame and the main trestle.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Main trestle bridge; 101. Bailey beam of the main trestle bridge; 2. Guide frame; 21. Pergola; 22. Double-layer Bailey beam; 23. Bolt; 24. Pad; 3. Positioning part; 31. Reserved hole; 32. Bottom cross brace; 4. Steel pipe pile; 5. Connecting system; 51. Vertical rod; 52. Diagonal rod; 53. Horizontal rod; 54. Corbel; 6. Bailey beam; 7. Roadbed plate; 8. Impact drill; 9. Pile cap; 10. Distribution beam; 12. Bridge deck; X, forward direction. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0045] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or may be interposed with another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may be interposed with another element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] Please see Figure 1 This application provides a rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas, comprising the following steps:

[0048] Step S10: Install guide frame 2.

[0049] In step S10, as Figure 10 As shown, one end of the guide frame 2 is fixed to the main trestle 1, and the guide frame 2 is perpendicular to the forward direction X of the main trestle 1. A positioning part 3 is connected to the end of the guide frame 2 away from the main trestle 1. The positioning part 3 includes a pre-drilled hole 31.

[0050] Specifically, such as Figure 2 As shown, the double-layered Bailey beams 22 can be pre-assembled using the flower stand 21, and the double-layered Bailey beams 22 can be used as the guide frame 2.

[0051] Preferred, such as Figure 2 and Figure 11 As shown, the guide frame 2 and the main trestle 1 are fixedly connected by bolts 23. The guide frame 2 is located below the Bailey beam 101 of the main trestle 1, and a pad 24 is provided between the Bailey beam 101 of the main trestle 1 and the bolts 23. The guide frame 2 is integrally formed with the Bailey beam 101 of the main trestle 1 by bolts 23. The extension direction of the positioning part 3 can be parallel to the forward direction X of the main trestle 1, and a bottom cross brace 32 is provided below the positioning part 3. There can be two guide frames 2, which are arranged in parallel. There can be two reserved holes 31 on the positioning part 3, which are located near the end of the positioning part 3. The two reserved holes are located on both sides of the two guide frames 2 respectively.

[0052] Step S20: Locate and position the piles.

[0053] First, the existing main trestle bridge 1 is used as a rough positioning guide for the steel pipe piles 4 to be constructed. Then, precise positioning is completed through step S20. The position of the positioning part 3 can be adjusted according to the pile position to ensure that the reserved hole position 31 is accurately positioned.

[0054] Step S30: Drive in steel pipe piles 4.

[0055] In step S30, the steel pipe pile 4 is driven into the reserved hole 31. Specifically, after step S20, a crawler crane with an impact hammer is used to drive piles at the reserved hole 31. After one steel pipe pile 4 is driven, the guide frame 2 is moved to another location in the forward direction X of the main trestle bridge 1 to drive the next steel pipe pile 4. When all steel pipe piles 4 at the same pier location have been driven, the following step S40 is executed.

[0056] Step S40: Install connection system 5.

[0057] In step S40, the connecting system 5 is installed between adjacent steel pipe piles 4. For example... Figure 3 As shown, the connecting system 5 includes a vertical rod 51, an inclined rod 52, and at least two horizontal rods 53. The vertical rod 51 and the inclined rod 52 are arranged between the two horizontal rods 53. The horizontal rods 53 are perpendicular to the steel pipe pile 4, and the vertical rod 51 is parallel to the steel pipe pile 4.

[0058] Specifically, the vertical rod 51 and the horizontal rod 53, the diagonal rod 52 and the horizontal rod 53, and the horizontal rod 53 and the steel pipe pile 4 are all connected by on-site welding. The vertical rod 51 intersects the two horizontal rods 53 at their respective midpoints. One end of each of the two diagonal rods 52 intersects the upper horizontal rod 53 at its midpoint. The other end of one diagonal rod 52 intersects the lower horizontal rod 53 near the steel pipe pile 4, and the other end of the other diagonal rod 52 intersects the lower horizontal rod 53 near the other steel pipe pile 4. This arrangement makes the connection system 5 more stable and reliable.

[0059] Preferably, a bracket 54 is provided below the connection between the upper horizontal bar 53 and the steel pipe pile 4 to ensure the safety of construction.

[0060] Step S50: Lay Bailey beams 6 on the connecting system 5 to construct a temporary working surface and construct anchor piles.

[0061] Specifically, step S50 includes the following steps performed sequentially:

[0062] Step S501: Place Bailey beam 6;

[0063] Step S502: Lay the roadbed plate 7;

[0064] Step S503: Drilling with an impact drill 8.

[0065] In step S501, as Figure 4 As shown, to facilitate the construction of the platform anchor piles, Bailey beam 6 is placed on the upper crossbar 53. The Bailey beam 6 is arranged along the forward direction X, perpendicular to the main trestle bridge 1. Twelve Bailey panels are arranged between every two steel pipe piles 4. A first lateral limiter is welded between the Bailey beam 6 and the crossbar 53. Bailey pins are installed on the Bailey panels. After the Bailey pins are installed, safety pins must be installed to prevent them from falling off. The connecting system 5 and the Bailey panels can be fixed with bolts.

[0066] In step S502, as Figure 5As shown, the roadbed 7 is placed on the laid Bailey bridge 6 to form a temporary working surface. Adjacent roadbed 7s are connected by welded steel plates. A second lateral limiter is welded between the roadbed 7 and the Bailey bridge 6. The second lateral limiter is used to limit the roadbed 7 and ensure the safety of construction.

[0067] In step S503, as Figure 6 As shown, the impact drill 8 is used to drill holes in the steel pipe pile 4 on the temporary working surface. After the holes are drilled to the specified elevation, the holes are cleaned, the reinforcing cage is placed, and the pile is poured.

[0068] Step S60: Weld the pile cap 9 and place the distribution beam 10.

[0069] Before proceeding to step S60, the temporary working surface can be removed, specifically the Bailey beam 6 and the roadbed plate 7 on the connecting system 5. The Bailey beam 6 can be reused in the subsequent step S70 to save materials.

[0070] In step S60, the pile cap 9 is welded to the top of the cut steel pipe pile 4, and the welding quality is checked after welding. Then, the distribution beam 10 is placed above the pile cap 9 and welded, as shown. Figure 7 As shown.

[0071] Step S70: Transfer the Bailey beam 6 to the distribution beam 10 to complete the system conversion. For example... Figure 8 As shown.

[0072] Before step S70, measurements are taken on the distribution beam 10 to determine the installation position of the Bailey beam 6 and damping rubber sheets are installed at the corresponding positions.

[0073] In step S70, the Bailey beam 6 comprises multiple installation units. Each installation unit includes multiple sets of "Type 321" Bailey beams. To expedite on-site installation and reduce high-altitude and water-based operations, the multiple sets of "Type 321" Bailey beams are installed as a single unit. The hoisting operation is completed using a 150t crawler crane.

[0074] After step S70, i.e., after the installation unit of Bailey beam 6 is installed in place, a Bailey beam lateral limiter is welded at the predetermined position of the pile top distribution beam 10. After the Bailey beam 6 is adjusted, the following step S80 is performed.

[0075] Step S80: Lay the bridge deck system. For example... Figure 9 As shown, bridge deck 12 is laid on top of Bailey beam 6.

[0076] In step S80, the bridge deck 12 is made of C30 precast concrete slabs. The dimensions of the precast slabs are 8m × 2m × 0.2m. During prefabrication, attention is paid to the positions of embedded steel sections and steel plates, and longitudinal angle steel is used for reinforcement. Locally irregular platform widening sections are customized according to actual dimensions. After prefabrication in the rear yard, the precast slabs are transported to the construction site using flatbed trucks, and then placed on the upper chord of the Bailey bridge 6 using crawler cranes. The bridge deck 12 is required to have tight, straight joints, be generally flat, and free from warping.

[0077] In this embodiment, the construction height in steps S60, S70 and S80 is the normal construction height, while the construction height in step S50 is lower than the normal construction height.

[0078] The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas provided in this embodiment utilizes the already constructed main trestle bridge 1, transforming the traditional longitudinal advancement into a lateral advancement based on a single span as the basic unit, enabling continuous operation. During the lateral advancement process, Bailey bridge beams 6 are temporarily placed using connecting systems 5 to construct a temporary construction platform, serving as a temporary working face for anchor pile construction. After the anchor pile construction is completed, pile caps 9 and distribution beams 10 are installed, transferring Bailey bridge beams 6 onto distribution beams 10 to complete the system conversion, and finally, the bridge deck system is laid. Compared with traditional construction methods, this technical solution realizes the conversion from the main trestle bridge 1 to a drilling platform for a trestle bridge, which is conducive to the unfolding of the working face, solves the problems of long anchor pile construction time and slow process conversion, and forms a continuous construction process for each process, greatly improving construction efficiency and shortening the construction cycle.

[0079] It should be noted that in the description of this specification, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this specification, unless otherwise stated, "a plurality of" means two or more.

[0080] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are similarly explicitly stated in this specification.

[0081] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0082] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0083] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0084] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. A rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas, characterized in that, Includes the following steps: Install a guide frame; one end of the guide frame is fixed to the main trestle, and the guide frame is perpendicular to the forward direction of the main trestle; the end of the guide frame away from the main trestle is connected to a positioning part including a reserved hole. Locate and position the piles; adjust the position of the positioning unit according to the pile positions. Drive the steel pipe piles; drive the steel pipe piles into the reserved holes; Install a connecting system; install the connecting system between adjacent steel pipe piles, the connecting system including a vertical rod, an inclined rod and at least two horizontal rods; the vertical rod and the inclined rod are arranged between the two horizontal rods, the horizontal rod is perpendicular to the steel pipe pile, and the vertical rod is parallel to the steel pipe pile; A temporary working surface is constructed by laying Bailey beams on the connecting system and constructing anchor piles; the Bailey beams are placed on the crossbar located above, and the Bailey beams are arranged in a direction perpendicular to the forward movement of the main trestle bridge; a roadbed plate is laid on the Bailey beams to construct a temporary working surface; on the temporary working surface, the steel pipe piles are drilled using an impact drill, and after the impact reaches the designated elevation, the holes are cleaned, a reinforcing cage is placed, and the piles are poured. Weld the pile cap and place the distribution beam; weld the pile cap to the top of the cut steel pipe pile, and after welding, place the distribution beam above the pile cap and weld it; The Bailey beam is transferred to the distribution beam to complete the system conversion; Lay the bridge deck system; lay the bridge deck panels on top of the Bailey beams.

2. The rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas according to claim 1, characterized in that, In the step of installing the guide frame, double-layered Bailey beams are pre-assembled using a flower rack, and the double-layered Bailey beams serve as the guide frame.

3. The rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas according to claim 2, characterized in that, The guide frame and the main trestle are fixedly connected by bolts; the guide frame is located below the Bailey beam of the main trestle, and a pad is provided between the Bailey beam of the main trestle and the bolts.

4. The rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas according to claim 1, characterized in that, In the step of driving steel pipe piles, a crawler crane is used in conjunction with an impact hammer to drive piles at the reserved hole positions; after the steel pipe piles at one location are driven, the guide frame is moved to another location in the forward direction of the main trestle bridge to drive the next steel pipe pile; when all steel pipe piles at the same pier location are driven, the step of installing the connection system is performed.

5. The rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas according to claim 1, characterized in that, In the installation and connection system steps, the vertical rod and the horizontal rod, the diagonal rod and the horizontal rod, and the horizontal rod and the steel pipe pile are all connected by welding; the vertical rod intersects with the two horizontal rods at the midpoint of the two horizontal rods respectively, one end of the two diagonal rods intersects with the upper horizontal rod at the midpoint of the upper horizontal rod, the other end of one diagonal rod intersects with the lower horizontal rod near the steel pipe pile, and the other end of the other diagonal rod intersects with the lower horizontal rod near the other steel pipe pile.

6. The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas according to claim 5, characterized in that, A corbel is provided at the connection point between the upper crossbar and the steel pipe pile.

7. The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas according to claim 1, characterized in that, In the step of laying Bailey beams on the connection system to construct a temporary working surface, 12 Bailey panels are arranged between every two steel pipe piles, and a first lateral limiter is welded between the Bailey beam and the crossbar.

8. The rapid construction method for a drilling platform for a support trestle in deep-water bare rock areas according to claim 1, characterized in that, In the step of laying roadbed plates on the Bailey beam to construct a temporary working surface, adjacent roadbed plates are connected by welding steel plates; a second lateral limiter is welded between the roadbed plate and the Bailey beam, and the second lateral limiter is used to limit the roadbed plate.

9. The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas according to claim 1, characterized in that, Before the step of transferring the Bailey beam to the distribution beam, a measurement and layout is carried out on the distribution beam to determine the installation position of the Bailey beam and install shock-absorbing rubber sheets at the corresponding positions. In the step of transferring the Bailey beam to the distribution beam, the Bailey beam includes multiple installation units, and the installation unit includes multiple sets of 321-type Bailey beams; the installation unit is lifted using a 150t crawler crane. After the step of transferring the Bailey beam to the distribution beam, a Bailey beam lateral limiter is welded at a predetermined position on the distribution beam.

10. The rapid construction method for a drilling platform for a trestle bridge in deep-water bare rock areas according to claim 1, characterized in that, In the step of laying the bridge deck system, the bridge deck is made of C30 precast concrete slabs, and the dimensions of the precast slabs are 8m×2m×0.2m; the precast slabs are placed on the upper chord of the Bailey beam using a crawler crane.

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