Construction platform for pile hole of trestle construction barge

Abstract

The utility model discloses a construction platform of trestle construction barge lead hole, including barge, three layer bailey beam platform, percussion drill, bridge deck, I -beam, connecting platform board and steel pipe stake, three layer bailey beam platform is arranged on the barge for supporting percussion drill, and the percussion drill is used for leading hole construction, the structure of three layer bailey beam platform is bridge deck, I -beam and bailey beam layer from top to bottom in proper order, the connecting platform board is laid between bottom layer bailey beam, is equipped with the perforation on the connecting platform board, and the steel pipe stake is vertically worn through the perforation, three layer bailey beam horizontal transverse fixed formation construction platform main part, the utility model discloses a kind of structure stable, high precision, strong adaptability's construction platform of trestle construction barge lead hole, by optimizing support structure form, reasonable selection material and supporting special equipment, the stability and efficiency of leading hole construction are promoted, construction cost is reduced, and the construction quality of trestle is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of trestle bridge construction, specifically to a construction platform for a trestle bridge construction barge pilot hole. Background Technology

[0002] In bridge construction, trestle bridges serve as temporary work access routes, and their construction quality directly affects the efficiency and safety of subsequent main construction. Pre-drilling is a crucial step in the construction of the trestle bridge's steel pipe pile foundation, requiring a specialized construction platform to support the drilling equipment and ensure drilling accuracy and stability.

[0003] Existing pilot hole construction platforms for trestle bridges mostly use single- or double-layer steel beam structures built on barges, which have the following technical defects: First, the supporting structure is not strong enough. When faced with the vibration load generated by impact drilling, the platform is prone to deformation and displacement, resulting in excessive deviation of the pilot hole verticality and affecting the installation quality of steel pipe piles. Second, the platform material selection is unreasonable. Some steel beams are made of ordinary carbon steel, which has poor durability in the high humidity and high corrosion environment of water, requiring frequent maintenance and replacement, increasing construction costs. Third, the steel pipe pile positioning structure is poorly designed and lacks a precise guiding mechanism, making it prone to deviation during installation and reducing construction efficiency. Fourth, existing platforms are not equipped with suitable hoisting equipment, and additional vessels are needed for equipment transfer and material transportation, making the construction process cumbersome.

[0004] To solve the above-mentioned technical problems, it is urgent to develop a stable, high-precision, and highly adaptable pilot hole construction platform for trestle construction barges. By optimizing the support structure, rationally selecting materials and supporting special equipment, the stability and efficiency of pilot hole construction can be improved, construction costs can be reduced, and the quality of trestle construction can be guaranteed. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a construction platform for pilot hole drilling on a barge for trestle construction; the purpose of this application is to use a Bailey beam platform arranged on the barge to support the impact drill and to use the impact drill for pilot hole drilling.

[0006] This utility model is implemented by constructing a construction platform for a barge to guide the hole in a trestle bridge construction, including a barge, a three-layer Bailey beam platform, an impact drill, a bridge deck, I-beams, a connecting platform plate, and steel pipe piles. The three-layer Bailey beam platform is arranged on the barge to support the impact drill, which is used for pilot hole construction. The structure of the three-layer Bailey beam platform consists of a bridge deck, I-beams, and Bailey beam layers from top to bottom. The connecting platform plate is laid between the bottom Bailey beams, and the connecting platform plate has through holes through which the steel pipe piles are vertically inserted. The three-layer Bailey beams are horizontally fixed to form the main body of the construction platform; The barge is also equipped with a tracked crane.

[0007] According to the construction platform for the pilot hole of the trestle construction barge described in this utility model, the bridge deck is made of Q235 patterned steel plate, and the thickness of the patterned steel plate is 8mm.

[0008] According to the construction platform for the pilot hole of the trestle construction barge described in this utility model, the Bailey beam is made of Q355 material and is model 321.

[0009] According to the construction platform for the pilot hole of the trestle construction barge described in this utility model, the connecting platform plate is fixed to the bottom Bailey beam by welding.

[0010] According to the construction platform for the pilot hole of the trestle construction barge described in this utility model, the three layers of Bailey beams are detachably and fixedly connected by connectors.

[0011] This utility model has the following advantages: First, significantly improved support stability ensures construction precision: This construction platform utilizes a three-layer Bailey beam system horizontally fixed to form the main support structure. Compared to existing single-layer or double-layer steel beam platforms, this significantly enhances structural strength and vibration resistance, effectively offsetting vibration loads generated during impact drilling operations. This prevents platform deformation and displacement, ensuring the verticality of the pilot hole drilling and improving the accuracy of subsequent steel pipe pile installation, thus guaranteeing the quality of the trestle bridge construction from the foundation level. Furthermore, the Bailey beams are made of Q355 material, specifically type 321 Bailey beams. This material has higher strength than ordinary carbon steel, further strengthening the platform's load-bearing capacity and structural stability, making it suitable for impact drilling operations.

[0012] Secondly, it is suitable for construction environments on water, with high durability and low maintenance costs: In response to the special construction environment of high humidity and high corrosion on water, this platform has made precise material selection for key components: The bridge deck is made of 8mm thick Q235 patterned steel plate, which not only has good structural strength, but the pattern design can also improve the anti-slip performance of the working surface and ensure the safety of construction personnel; Bailey beams are made of Q355 material with better corrosion resistance and mechanical properties. Compared with traditional ordinary carbon steel components, it can reduce the erosion of the structure by the water environment, extend the service life of the platform, and reduce the additional construction costs caused by frequent maintenance and replacement of components.

[0013] Third, precise positioning of steel pipe piles improves construction efficiency: Dedicated perforations are provided in the connecting platform plates laid between the bottom Bailey beams. Steel pipe piles are vertically inserted through these perforations, forming a precise guiding and positioning structure. This effectively solves the problem of easy deviation during the insertion of steel pipe piles on existing platforms, simplifies the positioning process, and improves the efficiency and accuracy of steel pipe pile installation. At the same time, the perforation design adapts to the construction path of the steel pipe piles, avoiding rework caused by positioning deviations during construction and further shortening the construction cycle.

[0014] Fourth, integrated configuration optimizes the construction process and reduces overall costs: The integrated placement of crawler cranes on the barge eliminates the need for additional lifting vessels to handle the transfer of equipment such as impact drills and the transportation of materials, simplifying the collaborative process and reducing time and transportation costs associated with equipment scheduling. Furthermore, the Bailey bridge platform features modular assembly and a three-layer structural design, facilitating on-site assembly and disassembly, improving platform turnover, and further reducing the overall cost of the trestle bridge's pilot hole construction.

[0015] Fifth, it is highly versatile and adaptable to various construction scenarios for water piers: The structural design and component selection of this construction platform have good adaptability. The combination of 321 Bailey beams with standardized bridge decks and I-beams can adjust the perforation size of the connecting platform plate according to the specifications of steel pipe piles for different piers. At the same time, it can adapt to the operation requirements of different types of impact drills. It is suitable for the pre-hole construction scenarios of various water piers and has broad application value. Attached Figure Description

[0016] Figures 1-2 This is a schematic diagram of the overall layout of the Bailey beam platform in this application; Figure 3 This is a schematic diagram of the actual construction of the Bailey beam platform in this application; Figure 4 This is a schematic diagram of the Bailey beam platform structure in this application. Detailed Implementation

[0017] The following will be combined with the appendix Figures 1-4 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0018] This utility model provides a construction platform for a barge to guide the borehole in the construction of a trestle bridge, such as... Figures 1-4 As shown, it can be implemented in the following manner: The construction platform is a Bailey beam platform arranged on barge 1 to support the impact drill, and the impact drill is used for pilot hole construction.

[0019] like Figures 1-4 As shown, the structure comprises a barge 1, on which a three-tiered Bailey bridge platform 2 is arranged. The Bailey bridge platform supports an impact drill 3, which is used for pilot hole drilling. The Bailey bridge platform structure, from top to bottom, consists of a bridge deck 4, I-beams 5, and connecting platform plates 6 laid between the bottom Bailey beams. Perforations are drilled in the connecting platform plates 6, through which the steel pipe piles 7 of the trestle bridge are vertically installed.

[0020] During the implementation of this application, a construction platform is formed by horizontally fixing three layers of Bailey beams. In the implementation of this application, the bridge deck is made of Q235 steel plate with a t=8mm thickness. In the implementation of this application, the Bailey beams are made of Q355 steel and are of type 321. When this application is implemented, a crawler crane will be installed on barge 1.

[0021] As stated above, the purpose of this application is to use a Bailey bridge platform mounted on a barge to support an impact drill for pilot hole drilling. A three-tiered Bailey bridge platform is mounted on the barge, arranged as follows: Figures 1-3 As shown.

[0022] Main load-bearing components: The structure of the Bailey platform, from top to bottom, consists of a fixed bridge deck, a 321-type Bailey panel, and the materials and parameters of the main components are shown in the table below:

[0023] The stress distribution of the beam is summarized in the table below: Statistics on stress and deformation of distributed beams

[0024] Stress statistics of Bailey beams Maximum combined stress 188MPa 305 MPa qualified Maximum shear stress 77MPa 175 MPa qualified This application presents a modeling and calculation of the Bailey bridge platform for the pilot pier of the Xishabu Ganjiang Grand Bridge project, and the following conclusions are drawn: the strength and stiffness of each component on the platform meet the requirements.

[0025] The specific implementation process of this patent will be described in detail below; I. Construction Preparation Stage Technical preparation: Based on the construction design drawings of the trestle bridge, clarify the location of the pilot hole, the specifications of the steel pipe piles and the construction accuracy requirements. Combined with the on-site hydrogeological conditions (such as water level changes and geological soil layer distribution), formulate a detailed platform construction and construction plan, and determine key parameters such as the arrangement spacing of the three-layer Bailey beams and the perforation size of the connecting platform plate (matching the outer diameter of the steel pipe piles).

[0026] Component and equipment procurement and inspection: Procure components and equipment that meet technical requirements. The bridge deck shall be made of Q235 material with a thickness of 8mm and the Bailey bridge beam shall be made of Q355 material and the Bailey bridge beam shall be made of 321 type. At the same time, prepare auxiliary components such as I-beams, connecting platform plates, and connecting parts (such as bolts and welding materials). In terms of equipment, implement the procurement of barges, impact drills, and crawler cranes, and conduct quality inspections on all components and equipment to ensure that the materials meet the standards and the equipment is in good working order.

[0027] Barge positioning: The barge is transported to the designated construction area and its position is fixed by an anchoring system to ensure that the barge does not shift significantly during construction, thus providing a stable foundation for subsequent platform construction and borehole drilling.

[0028] II. Bailey Beam Platform Construction Phase Bottom Bailey beam installation: Use a crawler crane to lift the 321 Bailey beams to the designated area on the barge deck, arrange them horizontally according to the design spacing, and fix the Bailey beams to the barge deck with connectors to ensure that the bottom Bailey beams are installed firmly and the levelness meets the standards.

[0029] Connecting platform plate installation: Connecting platform plates are laid between the bottom Bailey beams and fixed to the bottom Bailey beams by welding to prevent the platform plates from shifting during construction; according to the design position of the steel pipe piles, through holes are precisely drilled on the connecting platform plates to ensure that the center of the through hole coincides with the center of the pilot hole.

[0030] Installation of intermediate and top Bailey beams: Following the installation process of the bottom Bailey beams, the horizontal arrangement and fixation of the intermediate and top Bailey beams are completed in sequence. The three layers of Bailey beams form an overall support structure. During this process, the levelness and verticality of the platform need to be monitored in real time, and deviations need to be adjusted in a timely manner.

[0031] I-beam and bridge deck installation: I-beams are laid on top of the top Bailey beams. After the I-beams are fixedly connected to the top Bailey beams, 8mm thick Q235 patterned steel plates are laid on the I-beams as bridge decks to complete the fixation of the bridge decks and form a complete construction operation surface.

[0032] III. Equipment Installation and Commissioning Phase Impact drill installation and fixing: The impact drill is lifted to the designated working position on the Bailey beam platform by a crawler crane, and the impact drill is firmly connected to the platform structure using a special fixing device to ensure that the drilling center of the impact drill is aligned with the perforation center on the connecting platform plate.

[0033] Tracked crane commissioning: Perform functional commissioning on the tracked cranes mounted on the barge, and check whether parameters such as lifting weight and working radius meet the construction requirements to ensure that they can smoothly complete auxiliary operations such as impact drill transfer and steel pipe pile hoisting.

[0034] Overall system testing: A comprehensive test is conducted on the structural stability of the construction platform and the firmness of equipment connections. The vibration conditions during impact drilling are simulated to verify the platform's vibration resistance. At the same time, the guiding accuracy of the perforations in the connecting platform plates is checked to ensure that the construction requirements are met.

[0035] IV. Pre-drilling and Steel Pipe Pile Construction Stage Pre-drilling: Start the impact drill and perform pre-drilling operations according to the preset drilling parameters. During the construction process, the stable support structure of the platform is used to counteract the vibration generated by the impact drill. The verticality of the drill hole is monitored in real time, and deviations are corrected in a timely manner by adjusting the position of the impact drill to ensure the quality of the pre-drilling.

[0036] Steel pipe pile installation: After the pilot hole is completed, the steel pipe pile is lifted by a crawler crane to the top of the hole of the connecting platform plate. Using the guiding effect of the hole, the steel pipe pile is slowly and vertically inserted into the pilot hole to complete the positioning and installation of the steel pipe pile.

[0037] Cyclic operation: Following the above process, the drilling and installation of all steel pipe piles for the trestle bridge are completed in sequence. During this process, crawler cranes are used to transfer equipment and materials on-site, thereby improving the efficiency of construction coordination.

[0038] V. Construction Completion Stage Equipment dismantling: After all the pilot hole and steel pipe pile installation work is completed, the impact drill is dismantled first, and then the crawler crane is dismantled. During the dismantling process, the crawler crane (before dismantling) or external auxiliary equipment is used to ensure the safety of the operation.

[0039] Platform dismantling: The construction platform components are dismantled in the following order: "bridge deck → I-beam → top layer Bailey beam → intermediate layer Bailey beam → connecting platform plate → bottom layer Bailey beam". The dismantled components are sorted and organized for future reuse.

[0040] Barge Removal: After the dismantling work is completed, the barge is released from its anchorage and removed from the construction area, thus completing the entire construction process.

[0041] This implementation process strictly adheres to the structural design and equipment configuration of the technical solution. Through standardized construction steps, it fully leverages the stable support advantages of the three-layer Bailey bridge platform, the guiding role of the dedicated perforation system, and the integrated auxiliary functions of the crawler crane to ensure the accuracy and efficiency of the pilot hole construction, while reducing construction costs and adapting to the actual needs of water-based trestle bridge construction. If adjustments to construction parameters or optimization of process details are required, they can be flexibly adjusted according to the specific construction scenario.

[0042] The use value and social benefits of this application are explained below; I. Use Value Improving construction efficiency and shortening the construction period: This construction platform, through its integrated design, places the crawler crane and Bailey bridge construction platform together on the barge. Operations such as impact drill transportation and steel pipe pile hoisting can be completed without the need for additional hoisting equipment, significantly reducing equipment scheduling time and coordination costs. Simultaneously, the dedicated perforations connecting the platform plates provide precise guidance for the steel pipe piles, avoiding rework caused by positioning deviations, significantly accelerating the progress of pilot hole drilling and steel pipe pile installation, and effectively shortening the trestle bridge construction period. It is particularly suitable for water-based infrastructure projects with tight schedules.

[0043] Ensuring construction quality and reducing rework risks: The support structure formed by the horizontal fixation of three layers of Bailey beams, combined with the high strength characteristics of Q355 material 321 type Bailey beams, effectively resists the vibration load generated by impact drilling operations, avoids platform deformation and displacement, and ensures that the verticality of the pilot hole meets the standards. The bridge deck design with 8mm thick Q235 patterned steel plates not only improves structural stability but also ensures the safety of construction personnel. Precise structural design and high-quality material selection reduce quality problems such as pilot hole deviation and misalignment of steel pipe pile installation from the root, minimizing resource waste caused by rework.

[0044] Reducing overall construction costs: On the one hand, Q355 Bailey bridge beams and Q235 checkered steel plates possess excellent durability, adapting to high humidity and corrosive environments on water, reducing the frequency of component maintenance and replacement, and lowering equipment repair costs. On the other hand, the Bailey bridge platform adopts a modular assembly method, making assembly and disassembly convenient, and components can be reused for multiple projects, improving resource utilization. Furthermore, the integrated operation mode reduces additional expenses such as vessel rental and equipment transportation, further compressing overall construction costs.

[0045] Enhancing construction adaptability and expanding application scenarios: The platform adopts standardized component combinations, with 321-type Bailey beams and adjustable perforation size connecting platform plates. It can be flexibly adapted to different specifications of steel pipe piles for trestle bridges and impact drill models, making it suitable for trestle bridge pilot hole construction in different water environments such as inland rivers and coastal areas. Its flexible adaptability allows it to be widely used in various water infrastructure projects such as bridges, ports, and docks, improving the applicability and practical value of the technical solution.

[0046] II. Social Benefits Promoting the Standardization of Trestle Bridge Construction Technology: This construction platform, through optimized structural design, clear material selection, and standardized construction processes, has formed a replicable and scalable solution for underwater pilot hole construction. Its modular and integrated design provides a reference model for the development of similar construction platforms in the industry, contributing to the standardization and normalization of underwater trestle bridge construction technology and improving the overall construction technology level of the industry.

[0047] Ensuring safety during construction on water and reducing accidents: Stable support structures, non-slip bridge deck designs, and integrated operation modes reduce safety risks during construction on water from multiple dimensions, decreasing the probability of accidents such as equipment tipping over, personnel falls, and component detachment. This not only protects the lives and property of construction workers but also avoids project delays and negative social impacts caused by safety accidents, thus maintaining safety order in the infrastructure construction sector.

[0048] Conserving social resources and implementing green construction concepts: The high durability and reusability of components reduce the consumption of building materials such as steel, thus reducing resource waste; improved construction efficiency and reduced rework rates reduce energy consumption and pollutant emissions during construction, meeting the development requirements of green infrastructure. At the same time, the platform's efficient construction mode helps accelerate the implementation of transportation infrastructure projects, improve regional transportation networks, and provide fundamental support for socio-economic development.

[0049] Facilitating Infrastructure Construction in Remote Waters and Complex Environments: Traditional construction platforms suffer from poor stability and insufficient adaptability in areas with complex water construction environments, such as inland rivers and coastal areas, hindering the progress of infrastructure projects such as trestle bridges. This construction platform, with its strong stability and high adaptability, can effectively address the challenges of construction in complex water environments, facilitating the implementation of infrastructure projects in remote waters and complex geological conditions, improving regional infrastructure, and promoting coordinated urban-rural development and regional economic connectivity.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction platform for pilot hole drilling of a trestle bridge construction barge, characterized in that, Includes barge (1), three-layer Bailey beam platform (2), impact drill (3), bridge deck (4), I-beam (5), connecting platform plate (6) and steel pipe pile (7); The three-layer Bailey beam platform (2) is arranged on the barge (1) to support the impact drill (3), which is used for pilot hole construction; The structure of the three-layer Bailey beam platform (2) consists of a bridge deck (4), an I-beam (5) and a Bailey beam layer from top to bottom. The connecting platform plate (6) is laid between the bottom Bailey beams. The connecting platform plate (6) has perforations, and the steel pipe piles (7) are vertically inserted through the perforations. The three-layer Bailey beams are horizontally fixed to form the main body of the construction platform; The barge (1) is also equipped with a tracked crane.

2. The construction platform for the piering of a docking barge for a construction of a trestle according to claim 1, characterized in that, The bridge deck (4) is made of Q235 patterned steel plate, and the thickness of the patterned steel plate is 8mm.

3. The construction platform for the piering of a docking barge for a construction of a trestle according to claim 1, characterized in that, The Bailey beam is made of Q355 material and is model 321.

4. The construction platform for the pilot hole of the trestle construction barge according to claim 1, characterized in that, The connecting platform plate (6) is fixed to the bottom Bailey beam by welding.

5. The construction platform for docking a docking barge to a docking station according to claim 1, wherein, The three layers of Bailey beams are detachably and fixedly connected by connectors.

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