Method for inserting and driving low-clearance steel pipe piles under overwater bridge
By using barges and driving equipment operating under the bridge, and utilizing sliding tracks and cantilever platforms, efficient, safe, and precise steel pipe pile driving was achieved under low clearance conditions, solving the problems of low efficiency, insufficient accuracy, and poor safety in traditional methods.
Patent Information
- Application Number
- CN202510987994.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-10-21
AI Technical Summary
Traditional piling methods under bridges are inefficient, inaccurate, and unsafe under low clearance conditions. Existing technologies cannot achieve efficient, safe, and precise construction.
The system employs barges and driving equipment that can operate under the bridge. Through sliding tracks and cantilever platforms, two overhead cranes are used to lift, move, and vertically place the steel pipe piles. Combined with positioning frames for positioning and guidance, the system achieves stable driving of the steel pipe piles.
The driving of stable steel pipe piles in a limited clearance area improves construction efficiency, avoids damage to existing bridges, and ensures safe and continuous operation.
Smart Images
Figure CN120819100A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bridge construction, and in particular to the technical field of a method for inserting and driving low-headroom steel pipe piles under a water bridge. Background Art
[0002] Traditional piling under bridges mainly relies on floating cranes or crawler cranes after building trestles. For details, please refer to Figure 11 However, this method cannot achieve low-level pile driving from under a bridge due to the length limitations of the floating crane and crawler boom. Instead, it requires pre-drilling holes in the existing bridge at the pile location before inserting steel pipe piles. This method causes partial damage to the existing bridge, is inefficient, and requires a large investment in equipment.
[0003] Patent CN118345805A, for example, discloses a low-headroom piling pontoon and construction method under a bridge, which utilizes a pontoon and a piling control cabin. However, this method only allows vertical and longitudinal movement, and adjustment while suspended. Therefore, to ensure piling depth and accuracy, manual assistance and spliced piling are required, resulting in low efficiency during continuous operation and significant safety risks.
[0004] Therefore, the existing technology urgently needs a piling operation method suitable for low clearance conditions under water bridges to solve the problems of low efficiency, insufficient precision, and poor safety in traditional operation methods, so as to achieve efficient, safe and accurate construction goals. Summary of the Invention
[0005] In response to the above-mentioned needs, this application proposes a method for driving low-clearance steel pipe piles under a water bridge. By using a barge and driving equipment that can shuttle under an existing bridge, safe and continuous operations can be achieved under a low-clearance bridge.
[0006] To achieve the above objectives, this application adopts the following technical solutions:
[0007] A method for driving low-headroom steel pipe piles under a water bridge is provided, which is operated by a barge capable of shuttling under the bridge and driving equipment on the barge, and includes the following steps:
[0008] Step S1: The barge travels to a designated position under the bridge;
[0009] Step S2: The main girder of the driving equipment slides to the driving position via the sliding track;
[0010] Step S3: The first and second car lift the steel pipe pile and move it longitudinally to the cantilever end;
[0011] Step S4: The first and second lathes cooperate to adjust the steel pipe pile to a vertical state;
[0012] Step S5: positioning and guiding the steel pipe piles by the positioning frame and inserting and driving the steel pipe piles;
[0013] Step S6: After the steel pipe piles are driven, the main truss is retracted to within the projection line of the barge via the sliding track, and the barge moves to the next work station.
[0014] In this way, the main beam of the driving equipment, loaded onto the barge, slides along a sliding track, docking at the driving position at the bottom of the main beam to form a stable cantilevered working platform for driving piles. Two longitudinally movable overhead cranes are used to lift, shift, and vertically position steel pipe piles, and combined with positioning and guidance by positioning frames, stable steel pipe pile driving can be achieved in limited clearance areas, enabling non-destructive operations on existing bridges. Multiple steel pipe piles can also be driven continuously, improving operational efficiency.
[0015] In some possible implementations, the step S21 is further included after step S2, wherein the main girder of the driving device is fixed to the barge by using diagonal bracing.
[0016] In some possible implementations, the method further includes, after step S4 , a step S41 of transversely moving the steel pipe pile.
[0017] In some possible implementations, the transverse movement of the steel pipe piles in step S41 is completed by the transverse movement of the second stage vehicle on the top of the main truss.
[0018] In some possible implementations, in step S3, the first and second car lift the steel pipe pile at both longitudinal ends to place the steel pipe pile in a horizontal position.
[0019] In some possible implementations, in step S4, after the second overhead crane is longitudinally moved into position, the first overhead crane is used to adjust the lifting height and further longitudinally move the crane to adjust the verticality. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the barge in the standby state in step S1 of this application;
[0021] Figure 2 This is a schematic diagram of steps S2 and S3 in this application, wherein the main truss slides and the steel pipe piles are lifted;
[0022] Figure 3 This is a schematic diagram of the process state of vertical steel pipe piles in step S4 of this application;
[0023] Figure 4 This is a schematic diagram of the state of the steel pipe pile after verticalization and positioning in this application;
[0024] Figure 5 This is a schematic diagram of the state of the installation of the vibrating hammer for insertion and striking in step S5 of this application;
[0025] Figure 6 This application Figure 5 End view during the insertion process;
[0026] Figure 7 This application Figure 5 Schematic diagram of the vehicle's lateral movement process the day before the insertion;
[0027] Figure 8 is a schematic diagram of the positioning frame in this application;
[0028] Figure 9 It is a schematic side view of the main truss in this application;
[0029] Figure 10 It is a partial schematic diagram of the main truss and sliding track in this application;
[0030] Figure 11 It is a schematic diagram of the prior art. DETAILED DESCRIPTION
[0031] The following examples further illustrate the features of the present application and other related features to facilitate understanding by those skilled in the art:
[0032] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0033] Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal connections between two components. A person of ordinary skill in the art will be able to understand the specific meanings of these terms in this case.
[0034] Please refer to Figures 1 to 5 This is a schematic diagram of the operation process of a low-headroom steel pipe pile driving method under a water bridge in the present application, which can be operated by a barge 200 shuttling under the bridge and the driving equipment 100 on the barge 200.
[0035] Please refer to Figure 1 , is a schematic diagram of the barge 200 in the standby state in step S1, indicating that the barge 200 has arrived at the designated position under the bridge. Figure 2 In step S2, the main girder 2 of the driving equipment 100 slides to the driving position via the sliding track 1. The main girder 2 slides out of the barge 200 to form a cantilevered end, which is achieved as follows.
[0036] Please refer to Figure 1 and Figure 9 、 Figure 10 The insertion device 100 includes a sliding track 1 fixed to a barge 200, and a main girder 2 that can be partially slid out of the barge and cantilevered along the sliding track 1. The sliding track 1 can be a roller-type structure, which has a strong load-bearing capacity and is commonly used in engineering fields. The main girder 2 can be constructed using a truss structure, which has a lightweight structure and strong load-bearing capacity and is also used in engineering fields such as bridges and scaffolding. Specific diagrams are not provided, so detailed description is not provided.
[0037] Furthermore, the main truss 2 slides on the sliding track 1 in such a manner that a front leg 21 extending downward and sliding longitudinally on the top of the sliding track 1 is provided in the middle of the main truss 2. Figure 1 The moving direction of the front-back direction in the middle, moving forward will make the main girder 2 slide out the cantilever end that can be operated. And as the support of the other end, the rear end is provided with a rear pulley 22 that can roll on the barge 200.
[0038] The driving device for the sliding of the main truss 2 includes a jack 3 that can push or pull the front leg 21 to move longitudinally on the sliding track 1. One end of the jack 3 is fixed to the front leg 21, and the other end is a fixed seat 31. The fixed seat 31 can move along the sliding track 1, and its position after movement is detachably fixed to the sliding track 1. A specific embodiment can be that when the sliding track 1 itself adopts the roller form, its roller position can have a hollow shaft hole, that is, each roller position will have conditions for axial fixation, so the fixed seat 31 can have fixed conditions at each roller position. When sliding forward, the fixed seat 31 is in a fixed state, and the initial position of the jack 3 is in a retracted state. When it is pushed out, the front leg 21 is subjected to force, and combined with the rear pulley 22, the main truss 2 as a whole will be pushed forward. Then, the fixed connection between the fixing seat 31 and the sliding track 1 is contacted, the fixing seat 31 is pushed forward and the jack 3 is retracted. Similarly, the opposite is true when the main truss 2 returns to its original position, which will not be repeated.
[0039] In this way, after sliding out to form a cantilevered area for insertion and striking operations, the main girder 2 needs to be fixed to successfully complete the insertion and striking operations. A specific implementation method is that a diagonal brace 23 is provided at the other end of the main girder 2, that is, the rear end. The diagonal brace 23 is used to fix the main girder 2 to the barge 200. One end of the diagonal brace 23 is fixed to the main girder 2 at the upper end of the main girder 2, and the other end is provided with an anti-hanging lug 24, which can be fixed to the mounting seat 210 of the barge 200 through the anti-hanging lug 24 for easy fixation. The anti-hanging lug 24 serves as a rear anchor point to prevent the main girder 2 from overturning. The main girder 2 is composed of a truss, and a gantry-type anti-overturning bracket can be set on the barge 200. It can be freely selected according to the cantilever distance. Of course, a counterweight can also be used directly, and there is no specific limitation on this.
[0040] Therefore, after step S2 , there is step S21 of fixing the main girder 2 of the driving device 100 and the barge 200 by using the diagonal bracing 23 .
[0041] Furthermore, please refer to Figure 6 In one embodiment, the sliding track 1 is two parallel tracks, and the main truss 2 is composed of main truss pieces 2A that move longitudinally on the top of the sliding track 1. Here, the main truss piece 2A is unilateral and is attached to the main truss piece 2A in order to distinguish it from the main truss piece 2 of the sliding track 1. Figure 6 Distinguishing names are expressed in Chinese.
[0042] Furthermore, a transverse track 4 is provided at the top of the main truss 2, spanning the two main truss pieces 2A and capable of longitudinal movement at its top. As an example of an embodiment in which the transverse track 4 spanning the main truss pieces 2A is capable of longitudinal movement, for example, a layer of guide rails is laid on the top of the main truss pieces 2A, and multiple sets of rollers are provided at positions corresponding to the guide rails on the transverse track 4. The rollers can be driven by an electric motor, while an electromagnetic brake can be used as a braking device. For safety, once the transverse track 4 is in place, it can be mechanically fixed with pins or the like during operation. Numerous feasible movement methods are available in the industry, and no specific limitations or detailed descriptions are provided.
[0043] Furthermore, a crane 5 is provided on the top of the transverse track 4, which can move transversely on the top of the transverse track 4. Figure 6 The left and right movement in the end view shown refers to the left and right movement of the barge 200. The overhead crane 5 is a lifting device that can move along a track and generally includes a traveling mechanism, a lifting mechanism, and a control system. It can achieve horizontal movement and vertical lifting of heavy objects. It is a common technical means in the industry. In this embodiment, a hydraulic cylinder drive is preferably used. Firstly, it has a short travel distance and can achieve stable braking and precise movement.
[0044] For further information, please refer to Figures 1 to 3 There are at least two overhead cranes 5. In this embodiment, two overhead cranes 5 are taken as an example, specifically including a first overhead crane 51 on the rear side and a second overhead crane 52 on the front side, which can lift the steel pipe pile 300 and adjust the verticality of the steel pipe pile 300 by cooperating with each other.
[0045] Please continue to refer to Figure 2In step S3, the first and second overhead cranes 51 and 52 lift the steel pipe pile 300 and move it longitudinally to the cantilever end. This is achieved by, as described above, each overhead crane 5 is mounted on a transverse track 4, which in turn can move longitudinally on top of the main truss 2. Therefore, the transverse track 4 synchronously drives the first and second overhead cranes 51 and 52 to longitudinally move the lifted steel pipe pile 300 to the cantilever end, which is the designated location for the driving operation. During the specific operation, the first and second overhead cranes 51 and 52 lift the steel pipe pile 300 at both longitudinal ends, placing the pile 300 in a horizontal position.
[0046] Please refer to Figure 4 , is a schematic diagram of the process of verticalizing steel pipe pile 300. This corresponds to step S4, where the first and second carriages 51 and 52 coordinate to adjust the steel pipe pile 300 to a vertical position. Specifically, during step S3, while the steel pipe pile 300 is being longitudinally moved, the second carriage 52 moves to the designated position for insertion. At this point, the second carriage 52 remains stationary. While the first carriage 51 continues to move forward, it lowers the rope, gradually tilting the steel pipe pile 300 until it is safely vertical. The first carriage 51 then releases the steel pipe pile 300 and returns to its original position. The second carriage 52 then independently performs vertical lifting.
[0047] Please refer to Figures 5 to 8 After the steel pipe piles 300 are in the vertical position, they may need to be adjusted laterally. To this end, after step S4, step S41 is performed to laterally shift the steel pipe piles. Specifically, this is accomplished by the second carriage 52 moving laterally along the transverse track 4, which in turn is accomplished by the transverse shifting of the top of the main truss 2.
[0048] Furthermore, after the steel pipe pile 300 is vertical, it is necessary to guide and position the steel pipe pile 300 before driving. To this end, the present application also includes a positioning frame 6 provided at the cantilevered end of the main truss 2, which can guide and position the vertical steel pipe pile 300 so that it can be driven accurately.
[0049] Specifically, the positioning frame 6 comprises a crossbeam 61 spanning the main truss 2A and a plurality of positioning holes 62 disposed within the crossbeam 61 for guiding and positioning the steel pipe piles 300. Each end of each positioning hole 62 is provided with an openable and closable positioning fixture 63. Specifically, a double-sided positioning fixture 63 is provided on the side facing the barge 200. Once the steel pipe pile 300 is vertically positioned, the individual overhead cranes 5 are moved laterally and vertically into the corresponding positioning holes 62. The positioning fixtures 63 can then be closed to position and guide the steel pipe pile 300. The positioning holes 62 are all located within the movable range of the overhead crane 5 on the transverse track 4.
[0050] Please continue to refer to Figure 4After the longitudinal and lateral movements are completed, step S5 is performed to position and guide the steel pipe pile 300 by the positioning frame 6 as described above. Specifically, because the positioning frame 6 is an open positioning frame 6, it is convenient to complete the positioning when the steel pipe column 300 is converted to a vertical position. After completing the positioning once, it can also be adjusted again. The operation method can be selected according to the actual working conditions. After that, the steel pipe pile 300 is inserted and driven. At this time, the vibrating hammer 400 can be installed on the second car 52 for the insertion and driving operation. For details, please refer to Figure 5 .
[0051] After the insertion and striking operation is completed, the main truss 2 is returned to within the projection line of the barge 200 through the sliding track 1, and the barge 200 travels to the next station. Figure 1 Standby mode.
[0052] In this manner, with the driving equipment 100 loaded onto the barge 200, the main girder 2 of the driving equipment 100 slides along the sliding track 1, docking at the driving position at the bottom of the main girder 2 to form a stable cantilevered working platform for driving piles. Furthermore, the steel pipe piles 300 are lifted, shifted, and vertically positioned using two longitudinally movable overhead cranes 5, and then positioned and guided by the positioning frame 6 for driving piles. This allows for stable driving of the steel pipe piles 300 within limited clearance areas, enabling non-destructive operations on existing bridges. Multiple steel pipe piles 300 can also be driven continuously, improving operational efficiency.
[0053] As mentioned above, this case protects a method for driving low-clearance steel pipe piles under a water bridge. All technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.
Claims
1. A method for driving low-headroom steel pipe piles under a water bridge, characterized in that: The operation is carried out by a barge capable of shuttling under a bridge and a plugging device on the barge, and includes the following steps: Step S1: The barge travels to the designated position under the bridge; Step S2: The main girder of the driving equipment slides to the driving position via the sliding track; Step S3: The first and second car lift the steel pipe pile and move it longitudinally to the cantilever end; Step S4: The first and second lathes cooperate to adjust the steel pipe pile to a vertical state; Step S5: positioning and guiding the steel pipe piles by the positioning frame and inserting and driving the steel pipe piles; Step S6: After the steel pipe piles are driven, the main truss is retracted to within the projection line of the barge via the sliding track, and the barge moves to the next work station.
2. The method for driving low-headroom steel pipe piles under a water bridge according to claim 1, characterized in that: The method further includes, after step S2, a step S21 of fixing the main girder of the driving device and the barge by using diagonal bracing.
3. The method for driving low-headroom steel pipe piles under a water bridge according to claim 1, characterized in that: The method further includes, after step S4, a step S41 of transversely moving the steel pipe pile.
4. A method for driving low-headroom steel pipe piles under a water bridge as claimed in claim 3, characterized in that: The transverse movement of the steel pipe piles in step S41 is completed by the transverse movement of the second stage vehicle on the top of the main truss.
5. The method for driving low-headroom steel pipe piles under a water bridge according to claim 1, characterized in that: In step S3, the first and second car lift the steel pipe pile at both ends in the longitudinal direction, so that the steel pipe pile is in a horizontal position.
6. The method for driving low-headroom steel pipe piles under a water bridge according to claim 1, characterized in that: In step S4, after the second overhead crane is longitudinally moved to a desired position, the first overhead crane is used to adjust the lifting height and further longitudinally move the crane to adjust the verticality.