River channel lock buckle pipe pile guiding construction device and method

Abstract

The application provides a river channel lock buckle pipe pile guiding construction device and method, and belongs to the technical field of pipe pile guiding construction, and comprises a limiting frame, an initial limiting head, a lifting seat, a first positioning pile and a second positioning pile. On the basis that the limiting frame can simultaneously limit and guide multiple pipe piles and continuously push the pipe piles along the pipe pile arrangement direction as a whole in a single placement, the initial limiting head that can be lifted and the first positioning pile that is used only in the first construction section are additionally arranged. Through the integrated design of the transverse limiting channel and the longitudinal through port of the limiting frame, the function switching of the initial limiting head in the first section and the non-first section construction, the follow-up wedge tightening of the reinforced structure, and the temporary auxiliary limiting of the first positioning pile, a stable, reliable and convenient continuous construction system is constructed, and the stability and construction efficiency of long-distance continuous pile sinking operation are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of pipe pile guidance construction technology, specifically to a pipe pile guidance construction device and method based on river channel locking. Background Technology

[0002] Interlocking pipe piles (including steel pipe piles, prestressed concrete pipe piles, etc.) form a continuous wall by interlocking the wings of adjacent piles. They have both load-bearing and water-stopping and seepage prevention functions, and are widely used in engineering fields such as river management and bank protection, and foundation pit support.

[0003] In riverbank protection construction, hard strata such as clay and gravel interlayers are frequently encountered. When pipe piles penetrate these strata, the side friction and end resistance increase dramatically, and the pile body experiences complex stress during pile driving, making it highly susceptible to horizontal slippage and vertical tilting, resulting in pile position deviations and exceeding verticality standards. More seriously, the misalignment of a single pipe pile will directly lead to misalignment of adjacent flanges, increased interlocking gaps, decreased interlocking accuracy, and localized failure of the retaining wall. Later, under the pressure of river water and soil, this can easily trigger secondary disasters such as leakage, piping, and even bank slippage.

[0004] To address the issue of pile misalignment in hard strata, various guiding and limiting devices have been developed using existing technologies.

[0005] One type is the fixed guide frame. This type constrains the pipe piles by erecting a fixed guide frame at the pile driving location. Some designs incorporate auxiliary limiting components such as limiting pulleys and limiting top rods on the guide frame. While fixed guide frames are simple in structure, small guide frames require frequent disassembly, reinstallation, and calibration after driving a single pipe pile or a group of pipe piles, resulting in lengthy auxiliary work and low construction efficiency. Large, integrated guide frames, although covering a larger area at once, are difficult and time-consuming to erect initially, making them unsuitable for long-distance linear projects such as riverbank protection.

[0006] Another type is the movable guide frame. To address the frequent disassembly and assembly issues of fixed guide frames, existing technology proposes a solution involving a movable seat and a limiting clamp on the guide rail. The movable seat can slide along the guide rail to each pile driving position, and the pipe pile is limited by the limiting clamp. While this type of device reduces position adjustment time to some extent, it has a complex structure, requiring multiple components such as guide rails, movable sliders, and limiting clamps. In the complex construction environment, its operational stability and reliability are relatively low.

[0007] In addition, there is another type of simple, movable retaining frame. This type typically consists of two symmetrically arranged L-shaped steel frames fixedly connected by a top crossbeam. It is moved as a whole to each construction section for limiting and guiding, offering high convenience and efficiency. However, it usually cannot effectively limit and guide the pipe pile in the direction of movement, and the guiding accuracy needs improvement. More importantly, the reliability and stability of this type of retaining frame in actual long-distance continuous pile driving operations are difficult to guarantee. Under long-distance continuous construction conditions, the retaining frame repeatedly bears the lateral impact force during pipe pile driving. Due to the existence of weak areas in the structure of the retaining frame, these weak areas are prone to deformation under repeated stress, leading to changes in the limiting distance between the two L-shaped steel frames, a decrease in guiding accuracy, and consequently affecting the quality of pile driving. Furthermore, once the retaining frame deforms, it often needs to be lifted off the ground for repair or cut and re-welded, a process that takes several hours or even longer, severely disrupting the continuity of construction.

[0008] Therefore, there is an urgent need for a pipe pile driving limit device that is convenient and efficient to construct, can be continuously moved without frequent disassembly and assembly, and can work stably and reliably during long-distance continuous pile driving. Summary of the Invention

[0009] This invention provides a river channel locking pipe pile guiding construction device, including a limiting frame, an initial limiting head, a lifting seat, a first positioning pile, and a second positioning pile. The limiting frame has a lateral limiting channel and a longitudinal passage. The lateral limiting channel is used to limit and guide the pipe piles during the pile driving process in the lateral direction, and the limiting frame can limit and guide several pipe piles arranged longitudinally at the same time in a single placement. The longitudinal passage is used for the pipe piles after pile driving to pass through, so that the limiting frame as a whole can move longitudinally to the next construction section. The initial limiting head is used to limit and guide the pipe pile during the first pile driving process in the lateral and longitudinal directions. The lifting seat is connected to the initial limiting head and is used to drive the initial limiting head to switch between a first position and a second position. When the initial limiting head is in the first position, it is separated from the pipe pile after pile driving, so that the limiting frame can move as a whole. When it is in the second position, it is in limiting contact with the pipe pile after pile driving, and the pipe pile after pile driving enhances the structural strength near the longitudinal passage. The first positioning piles are symmetrically distributed laterally on both sides of the limiting frame to limit the limiting frame from both sides and do not move with the limiting frame. The second positioning piles are used to limit the limiting frame in the longitudinal and lateral directions and move with the limiting frame.

[0010] In one possible implementation, the initial limiting head includes a limiting head body and a wedge-shaped mating part. The limiting head body is laterally symmetrically distributed and located on both sides of the pipe pile, and is laterally slidably mounted on the lifting seat. The wedge-shaped mating part is fixedly mounted on the limiting frame. When the limiting head body descends with the lifting seat, it engages with the inclined surface of the wedge-shaped mating part, driving the limiting head body to move laterally towards the pipe pile and press against the pipe pile after it has been driven.

[0011] In one possible implementation, the limiting frame includes a lateral limiting portion, a vertical raising portion, a longitudinal connecting portion, and a guide post: the lateral limiting portions are symmetrically distributed laterally, and the gap between them forms a lateral limiting channel; the vertical raising portions are respectively fixedly connected to one end of each lateral limiting portion; the longitudinal connecting portion is fixedly connected to the end of the lateral limiting portion away from the vertical raising portion and is fixedly connected between two vertical raising portions; the guide post is fixedly connected between the longitudinal connecting portion between the vertical raising portions and the lateral limiting portion; the lifting seat moves up and down along the guide post.

[0012] In one possible implementation, the guide posts are in at least two sets and distributed longitudinally, with two guide posts in each set and symmetrically distributed laterally. A clamping reinforcement structure is provided between the lifting seat and one set of guide posts. The clamping reinforcement structure includes: a wedge-shaped clamping part, fixedly disposed on the guide post; and a wedge-shaped mating area, disposed on the lifting seat and corresponding to the wedge-shaped clamping part. The lifting seat slides with the guide post without the wedge-shaped clamping part and has a clearance fit with the guide post with the wedge-shaped clamping part.

[0013] In one possible implementation, both the wedge-shaped abutment and the wedge-shaped mating area are annular structures.

[0014] In one possible implementation, a movable limiting head is also included; the limiting frame is provided with a plurality of fixed limiting heads that cooperate with the movable limiting head, the fixed limiting heads limiting the movable limiting head in the longitudinal direction, so that the movable limiting head limits the pipe pile in the longitudinal direction from one side during the pile driving process, and after the pipe pile is driven, the movable limiting head is taken out vertically upward.

[0015] In one possible implementation, the movable limiting head includes a longitudinal limiting area and a lateral limiting area, the lateral limiting area being symmetrically distributed and cooperating with the fixed limiting head to provide lateral limiting constraint on the structure of the limiting frame located on both sides of the pipe pile.

[0016] A method for guiding construction based on riverbed interlocking pipe piles, which is completed with the above-mentioned guiding construction device based on riverbed interlocking pipe piles, includes the following steps: S1: Place the limiting frame at the first construction position, and install the first positioning pile and the second positioning pile at the preset position to limit and position the limiting frame.

[0017] S2: Use the initial limiting head to guide the first pipe pile in the lateral and longitudinal directions to complete the driving of the first pipe pile; then drive the remaining pipe piles in sequence along the longitudinal direction until the first section of construction is completed.

[0018] S3: The lifting seat drives the initial limiting head to rise to the first position, separating it from the driven pipe pile; then the limiting frame is pushed along the arrangement direction of the driven pipe pile to move the limiting frame to the next construction position, and the driven pipe pile passes through the longitudinal passage.

[0019] S4: The lifting seat drives the initial limiting head to descend to the second position, so that it makes contact with the already driven pipe pile. The already driven pipe pile enhances the structural strength near the longitudinal passage. At the same time, the second positioning pile is installed in the preset position to limit and position the limiting frame.

[0020] S5: Starting with the last completed pipe pile, the pipe pile driving work is carried out sequentially along the longitudinal direction until the construction of this section is completed.

[0021] S6: Repeat steps S3 to S5 until all pipe piles are driven into place.

[0022] The above-mentioned one or more technical solutions in the embodiments of the present invention have the following technical effects: Based on the fact that the limiting frame can simultaneously limit and guide multiple pipe piles and can be continuously pushed along the pipe pile arrangement direction when placed once, the present invention adds an initial limiting head that can be raised and lowered and a first positioning pile used only in the first construction section, which effectively improves the operational stability and reliability of the limiting frame in the long-distance continuous construction process, and at the same time has the advantages of convenient use and high operation efficiency.

[0023] In the first construction section, the initial limiting head provides bidirectional lateral and longitudinal guidance for the first pipe pile, ensuring the driving accuracy of the first pile and providing a precise installation benchmark for subsequent pipe piles. The movable limiting head works in conjunction with the fixed limiting head to further ensure the driving accuracy of each pipe pile, and the movable limiting head is reusable and easy to operate. The first positioning pile provides temporary auxiliary limiting for the weak areas of the limiting frame, effectively preventing the limiting frame from deforming under stress and affecting the guiding accuracy and continuous operation stability. It is removed after the first section is completed, without affecting the efficiency of subsequent continuous operations.

[0024] In subsequent construction sections, the initial limiting head makes limiting contact with the already driven pipe piles, forming an additional support point in the upper middle part of the L-shaped steel frame arm. This effectively shortens the force arm, reduces the bending moment at the inflection point, and enhances the deformation resistance of the weak area of ​​the limiting frame. The tightening reinforcement structure between the lifting seat and the guide column automatically wedges when the lifting seat descends to the correct position and automatically releases when it rises. This effectively prevents the guide column from bending and deforming after long-term impact loads, ensuring the stability and reliability of the lifting seat's reciprocating lifting and lowering, and thus ensuring the long-term stability and reliability of the overall structure.

[0025] In summary, this invention constructs a stable, reliable, and convenient continuous construction system through the integrated design of the lateral limiting channel and longitudinal passage of the limiting frame, the functional switching of the initial limiting head in the first and subsequent construction stages, the follow-up wedging of the tightening reinforcement structure, and the temporary auxiliary limiting of the first positioning pile. This effectively improves the stability and construction efficiency of long-distance continuous pile driving operations. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a river channel locking pipe pile guiding construction device provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a limiting frame based on a river channel locking pipe pile guiding construction device provided in an embodiment of the present invention;

[0028] Figure 3 This is a structural schematic diagram of a guide impact column, a limiting head body, and a movable limiting head based on a river channel locking pipe pile guiding construction device provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a limiting head body of a river channel locking pipe pile guiding construction device when it is in the first position, according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of a limiting head body of a river channel locking pipe pile guiding construction device when it is in the second position, according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the structure of the limiting head body and the wedge-shaped mating part of a river channel locking pipe pile guiding construction device provided in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of a clamping and strengthening structure based on a river channel locking pipe pile guiding construction device provided in an embodiment of the present invention.

[0033] In the diagram: 1. Limiting frame; 101. Lateral limiting channel; 102. Longitudinal passage; 103. Lateral limiting part; 104. Vertical lifting part; 105. Longitudinal connecting part; 106. Guide column; 107. Connecting seat; 108. Mating head; 2. Initial limiting head; 21. Limiting head body; 22. Wedge-shaped mating part; 23. Sliding column; 3. Lifting seat; 4. First positioning pile; 5. Second positioning pile; 6. Tightening reinforcement structure; 61. Wedge-shaped tightening part; 62. Wedge-shaped mating area; 7. Movable limiting head; 71. Longitudinal limiting area; 72. Lateral limiting area; 8. Fixed limiting head; 100. Pipe pile. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Please see Figures 1-7 A river channel locking pipe pile guiding construction device includes a limiting frame 1, an initial limiting head 2, a lifting seat 3, a first positioning pile 4, and a second positioning pile 5.

[0036] For ease of description, this embodiment defines the arrangement direction of the pipe piles 100 as longitudinal (i.e., Figure 2 The piles 100 are driven sequentially from right to left (in the left-right direction). The limiting frame 1 moves longitudinally from right to left. The direction perpendicular to the arrangement direction of the piles 100 is the transverse direction (i.e., the left-right direction). Figure 2 (the front and back directions in the middle).

[0037] like Figure 2 As shown, the limiting frame 1 includes two L-shaped steel frames arranged symmetrically front to back and a longitudinal connecting part 105 fixedly connected between the two L-shaped steel frames.

[0038] Each L-shaped steel frame includes a lateral limiting portion 103 and a vertically raised portion 104 located at the right end of the lateral limiting portion 103. The lateral limiting portion 103 and the vertically raised portion 104 can be integrally bent, welded, or fixedly connected with high-strength bolts. The two lateral limiting portions 103 are symmetrically distributed in the front-back direction, and the gap between them forms a lateral limiting channel 101. The width of the lateral limiting channel 101 is adapted to the outer diameter of the pipe pile 100, and is used to limit and guide the pipe pile 100 in the lateral direction (i.e., the front-back direction) to prevent the pipe pile 100 from sliding or tilting in the front-back direction during the pile driving process. After the limiting frame 1 is placed once, the lateral limiting channel 101 can simultaneously limit and guide multiple pipe piles 100 arranged sequentially in the longitudinal direction (i.e., the left-right direction). There is no need to move and adjust the position of the limiting frame 1 for each pipe pile 100 individually.

[0039] The two vertically raised sections 104 are also symmetrically distributed in the horizontal direction (i.e., front-to-back direction), with the gap between them forming a longitudinal passage 102. The tops of the two vertically raised sections 104 and the left ends of the two horizontally limiting sections 103 are fixedly connected by longitudinal connecting sections 105, so that the two L-shaped steel frames form an integral frame structure. The height of the vertically raised section 104 is greater than the top surface height of the driven pipe pile 100, allowing the driven pipe pile 100 to pass through the longitudinal passage 102. This allows the limiting frame 1 to be moved as a whole along the arrangement direction of the driven pipe pile 100 (i.e., from right to left) to the next construction section without disassembly or hoisting. It can be moved from the current construction section to the next construction section for continuous limiting and guiding operations. Moreover, the overall structure is simple, and the stability and reliability of continuous operation are high.

[0040] To address the weak area of ​​the structure near the longitudinal passage 102 of the limiting frame 1, where the opening at the longitudinal passage 102 prevents the two L-shaped steel frame inflection points from forming a lateral connection and creating a structural weakness, the lateral reaction force generated by the pipe pile 100 during pile driving acts on the limiting frame 1, easily causing the right ends of the two lateral limiting parts 103 to expand and deform outwards. This increases the distance between the symmetrical lateral limiting parts 103, thereby reducing the guiding accuracy of the lateral limiting channel 101. This invention strengthens the structure by using a first positioning pile as a temporary auxiliary limiting device in the first construction section, and then using the initial limiting head 2 in conjunction with the driven pipe pile 100 in subsequent construction sections to ensure the stability and reliability of continuous limiting and guiding operations, while effectively ensuring construction efficiency and convenience. Specifically: 1. Structural reinforcement of the temporary auxiliary limiting device using the first positioning pile 4: There are two first positioning piles 4, symmetrically distributed front and back, located on both sides of the limiting frame 1. Figure 3 As shown, during the construction of the first construction section, the first positioning pile 4 is driven into the construction ground to tighten and limit the limiting frame 1 from both sides, thereby enhancing the structural strength of the L-shaped steel frame's inflection point area and effectively reducing the risk of outward deformation under stress in this area. The first positioning pile 4 does not move with the limiting frame 1 and is pulled out after the first section of construction is completed. It is not used in subsequent construction sections, thus significantly reducing the auxiliary workload during continuous limiting and guiding operations and effectively ensuring construction efficiency.

[0041] 2. The dual function of the initial limiting head (i.e., precise positioning of the first pipe pile 100 and structural reinforcement of subsequent construction sections): The initial limiting head 2 includes two limiting head bodies 21, which are symmetrically distributed front and rear and mounted on the lifting seat 3. For example... Figure 3 As shown, the limiting head body 21 has an arc-shaped structure, and its inner arc surface is adapted to the outer circumferential surface of the pipe pile 100.

[0042] The first pile positioning function involves symmetrically positioned arc-shaped limiting heads 21 that fit against the outer circumference of the first pipe pile 100 from both the front and rear sides during driving. This provides positioning and guidance in both front-to-back and left-to-right directions, effectively preventing lateral slippage and tilting of the first pipe pile 100 during driving and ensuring its accuracy. The precise positioning of the first pile provides a precise installation benchmark for subsequent pipe piles 100. Each subsequent pipe pile 100 is placed based on the previously adjacent driven pipe pile 100, facilitating high-precision continuous pile driving throughout the entire construction section.

[0043] The structural reinforcement function ensures that during construction of sections other than the first, the limiting head body 21 makes limiting contact with the already driven pipe pile 100 in the previous adjacent construction section (e.g., Figure 5 As shown, the limiting frame 1 is connected to the driven pile 100 as a whole. The driven pile 100 provides an additional support point for the limiting frame 1 through the limiting head body 21. This support point effectively shortens the force arm and reduces the bending moment at the inflection point, thereby enhancing the deformation resistance of the overall structure of the limiting frame 1 and ensuring the stability and reliability of long-distance continuous operation.

[0044] See Figure 3 , Figure 4 and Figure 5 The limiting frame 1 also includes two sets of guide posts 106 spaced from right to left, with two guide posts 106 in each set and symmetrically distributed front and back. A connecting seat 107 is fixedly installed on the longitudinal connecting part 105, which is fixedly connected to the top of the vertically raised part 104. Both sets of guide posts 106 are fixedly connected between the transverse limiting part 103 and the connecting seat 107. The lifting seat 3 is slidably connected to the left set of guide posts 106 and moves up and down along the guide posts 106 under the drive of a hydraulic cylinder, thereby controlling the movement of the limiting head body 21 between the first and second positions. That is, when the lifting seat 3 rises and causes the limiting head body 21 to move to the first position (e.g., when the lifting seat 3 rises and moves the limiting head body 21 to the first position), the limiting head body 21 moves up to the first position. Figure 4 As shown), the limiting head body 21 is positioned above the driven pipe pile 100. At this time, the driven pipe pile 100 will not interfere with the overall movement of the limiting frame 1, and the limiting frame 1 can be moved as a whole to the next construction section. When the lifting seat 3 descends, causing the limiting head body 21 to move down to the second position (as shown), Figure 5 As shown, the limiting head body 21 makes limiting contact with the pipe pile 100, connecting the limiting frame 1 and the driven pipe pile 100 into one unit. The lifting seat 3 and the hydraulic cylinder are both located on the upper part of the limiting frame 1, away from the ground soil area, which can effectively avoid the influence of the ground environment on its working stability.

[0045] See Figure 3 , Figure 4 , Figure 5 and Figure 6To facilitate the lifting and lowering movement of the limiting head body 21 and its tight contact with the pipe pile 100, the initial limiting head 2 also includes a wedge-shaped mating part 22. The wedge-shaped mating part 22 corresponds one-to-one with the limiting head body 21, and the two are engaged by their inclined surfaces. Figure 4 As shown, the wedge-shaped mating part 22 is a wedge-shaped block fixedly installed on the left guide post 106.

[0046] When the lifting seat 3 drives the limiting head body 21 to descend, the limiting head body 21 moves laterally towards the middle pipe pile 100 under the guidance of the inclined surface of the wedge-shaped fitting part 22. When the limiting head body 21 descends to the second position, under the wedge-shaped limiting action of the wedge-shaped fitting part 22, the limiting head body 21 tightly abuts against the outer peripheral surface of the driven pipe pile 100 (e.g., Figure 6 As shown in the figure, a stable and reliable support connection is formed between the pipe pile 100 and the limiting frame 1.

[0047] When the lifting seat 3 drives the limiting head body 21 to rise, the limiting head body 21 moves upward and disengages from the inclined surface engagement area of ​​the wedge-shaped engagement part 22. After losing the wedge-shaped limiting effect of the wedge-shaped engagement part 22, the limiting head body 21 is no longer pushed towards the pipe pile 100 and resumes its outward sliding state, facilitating the smooth rise of the limiting head body 21 to the first position. A sliding column 23 is also fixedly connected to the limiting head body 21. The sliding column 23 is symmetrically distributed front and back and slidably connected to the lifting seat 3. An inclined guide area (not shown in the figure) is provided on the lower end surface of the limiting head body 21. During the descent of the limiting head body 21, when its lower end surface contacts the top surface of the pipe pile 100, the guide area can guide the limiting head body 21 to move outward, effectively reducing the risk of the limiting head body 21 getting stuck.

[0048] See Figure 3 , Figure 4 and Figure 7 To ensure the stability of the lifting seat 3 during the lifting process and after it has descended to the correct position, a clamping and reinforcing structure 6 is provided between the lifting seat 3 and the guide column 106.

[0049] The tightening and reinforcing structure 6 includes a ring-shaped wedge-shaped clamping part 61 and a ring-shaped wedge-shaped mating area 62, with the wedge-shaped mating area 62 corresponding one-to-one with the wedge-shaped clamping part 61. The wedge-shaped clamping part 61 is fixedly mounted on two guide posts 106 on the right side. The lifting seat 3 is clearance-fitted with the two guide posts 106, and the wedge-shaped mating area 62 is located on the lifting seat 3, as shown below. Figure 7 As shown, both the wedge-shaped clamping part 61 and the wedge-shaped mating area 62 are conical structures, and their cone angles are matched to achieve a surface contact wedge-tight fit.

[0050] When the lifting seat 3 descends and drives the limiting head body 21 to move to the second position, the lifting seat 3 moves vertically downwards under the guidance of the two guide posts 106 on the left. When the limiting head body 21 descends to the second position, the wedge-shaped mating area 62 provided on the lifting seat 3 and the corresponding wedge-shaped abutting part 61 fixedly provided on the two guide posts 106 on the right are wedge-tightly mated, so that the lifting seat 3 and the two guide posts 106 on the right are stably connected as one, forming a stable and reliable connection between the lifting seat 3 and the limiting frame 1.

[0051] When lateral reaction force is generated during the subsequent driving of the pipe pile 100, it is mainly transmitted between the limit frame 1 and the corresponding driven pipe pile 100 through the lifting seat 3 and the two guide columns 106 on the right side. Due to the wedge-shaped mating part 61 and the wedge-shaped mating area 62, the guide column 106 can be effectively prevented from bending and deforming after long-term impact load, thereby effectively avoiding the problem of the lifting seat 3 being affected by the deformation of the guide column 106, and ensuring the stability and reliability of the lifting seat 3 in the reciprocating lifting process.

[0052] When the lifting seat 3 moves upward, driving the limiting head body 21 to the first position, the wedge-shaped clamping part 61 separates from the wedge-shaped mating area 62, and the wedge-tightening engagement is released. At this time, the lifting seat 3 continues to move upward smoothly under the guidance of the two guide posts 106 on the left side, and successfully returns to the free sliding state.

[0053] In summary, this invention, through the reinforcing and clamping structure 6, effectively ensures the stability and reliability of the lifting seat 3 during the reciprocating lifting process. This, in turn, guarantees the stability and reliability of continuous pile driving operations.

[0054] See Figure 1 , Figure 3 and Figure 4 As shown, to further ensure the driving accuracy of each pipe pile 100, the present invention also provides a movable limiting head 7. Several fixed limiting heads 8 that cooperate with the movable limiting head 7 are fixedly installed on the limiting frame 1. The fixed limiting head 8 is used to limit the movable limiting head 7 in the longitudinal direction, so that the movable limiting head 7 limits the pipe pile 100 in the longitudinal direction from one side during the driving process.

[0055] like Figure 2As shown, the fixed limiting head 8 consists of two symmetrically arranged limiting blocks, which are fixedly installed on the transverse limiting part 103. Each limiting block has a vertical limiting surface facing to the right. The movable limiting head 7 is located on the right side of the limiting block and abuts against the vertical limiting surface of the limiting block. During pile driving, the movable limiting head 7 guides and limits the pipe pile 100 from the left, while the right side of the pipe pile 100 is limited by the already driven pipe pile 100. Combined with the constraint of the transverse limiting channel 101 in the front-back direction, the pipe pile 100 is effectively limited in all four directions, ensuring pile driving accuracy. After the pipe pile 100 is driven, the movable limiting head 7 is removed vertically upwards and placed to the right of the next fixed limiting head 8 to limit the driving of the next pipe pile 100.

[0056] Combination Figure 3 and Figure 4 As shown, the movable limiting head 7 includes a longitudinal limiting area 71 with a cylindrical structure and a transverse limiting area 72 with a circular structure. The transverse limiting area 72 is symmetrically distributed front and back and is coaxial with the longitudinal limiting area 71. Figure 3 As shown, the two lateral limiting areas 72 correspond one-to-one with the limiting blocks of the two fixed limiting heads 8, and are located on the outer side of the corresponding limiting blocks. When the longitudinal limiting area 71 is located on the right side of the limiting block and abuts against the vertical limiting surface, the lateral limiting area 72 corresponding to the front limiting block is located on the front side of the limiting block and abuts against the limiting block, and the lateral limiting area 72 corresponding to the rear limiting block is located on the rear side of the limiting block and abuts against the limiting block. Thus, the lateral limiting areas 72 limit and constrain the limiting frame 1 in the front-rear direction, further improving the deformation resistance of the limiting frame 1. In addition, to facilitate the smooth removal of the movable limiting head 7, the surface of the lateral limiting area 72 in contact with the limiting block is set to an arc-shaped structure, with line contact between the two, effectively reducing the friction between them.

[0057] After the movable limit head 7 is removed, it can be reused for pile driving limit of pipe piles 100 in subsequent construction sections, without the need to configure a separate limit component for each pipe pile 100.

[0058] See Figure 2 , Figure 3 and Figure 5 The second positioning pile 5 is an H-shaped steel beam structure, which is inserted through the transverse limiting channel 101. Its width is adapted to the width of the transverse limiting channel 101, and it can limit and position the limiting frame 1 in the front-back direction and on the left side. The second positioning pile 5 moves synchronously with the limiting frame 1, and is reinstalled in the preset position after each push to the next construction section.

[0059] The first positioning pile 4 not only limits the positioning frame 1 in the front-to-back direction, but also limits the positioning frame 1 from the right side, so that the positioning frame 1 is stably placed in the preset position in the first construction section, such as... Figure 3 As shown, L-shaped mating heads 108 are fixedly installed on the side opposite to the lateral limiting part 103. After the first positioning stake 4 is driven into the ground, it abuts against the left side of the L-shaped mating head 108, thereby limiting the limiting frame 1 from the right side. Then, before the limiting frame 1 is pushed horizontally as a whole, the first positioning stake 4 can be pulled out.

[0060] A method for guiding construction based on riverbed interlocking pipe piles, implemented using the riverbed interlocking pipe pile guiding construction device described in the aforementioned embodiments, includes the following steps: S1: Place the limiting frame 1 at the initial construction position. Then, two first positioning piles 4 are symmetrically driven into the construction ground from both sides of the limiting frame 1 and respectively abut against the corresponding mating heads 108, so that the two first positioning piles 4 abut against and limit the limiting frame 1 from the front, rear, and left sides. At the same time, the second positioning pile 5 is installed in a preset position, so that the H-shaped steel beam structure of the second positioning pile 5 is inserted through the transverse limiting channel 101 and abuts against the longitudinal connecting part 105 on the left side, thereby limiting and positioning the limiting frame 1 in the front-rear and right directions. The first positioning piles 4 are only used in the initial construction to enhance the deformation resistance of the limiting frame 1 in the initial construction and ensure the driving accuracy of the first section of pipe piles 100.

[0061] Because the limiting frame 1 has an opening at the longitudinal passage 102, this area (i.e., the inflection point of the L-shaped steel frame) cannot form a closed connection in the transverse direction, making it a structurally weak area. During pile driving, when the lateral reaction force generated by the pipe pile 100 acts on the limiting frame 1, it easily causes the ends of the transverse limiting parts 103 to expand and deform outward, increasing the distance between the symmetrical transverse limiting parts 103 and thus reducing the guiding accuracy of the transverse limiting channel 101. Therefore, in the first construction section, first positioning piles 4 are set in a transversely symmetrical distribution to limit and tighten the limiting frame 1 from both sides, thereby enhancing the deformation resistance of the limiting frame 1 at the inflection point of the L-shaped steel frame and ensuring the construction quality of the first section.

[0062] S2: The initial limiting head 2 is used to guide the first pipe pile 100 laterally and longitudinally. Specifically, the lifting seat 3 descends along the guide column 106, driving the limiting head body 21 to descend to the second position. Guided by the inclined surface of the wedge-shaped mating part 22, the limiting head body 21 moves laterally towards the middle pipe pile 100, closely abutting against the outer circumference of the first pipe pile 100, and guiding the first pipe pile 100 in both front-back and left-right directions to prevent the first pipe pile 100 from sliding or tilting during the pile driving process, ensuring the pile driving accuracy of the first pile. After the first pipe pile 100 is driven and its position is verified to be correct, the driving of subsequent pipe piles 100 begins.

[0063] Each subsequent pipe pile 100 is driven based on the previous adjacent driven pipe pile 100, and the driving of all pipe piles 100 in the first section is completed in sequence. The driving sequence of pipe piles 100 in the first section is from right to left along the longitudinal direction.

[0064] In this step, the movable limiting head 7 and the fixed limiting head 8 are used in conjunction. Before each pipe pile 100 is driven, the movable limiting head 7 is placed at the fixed limiting head 8 on the left side of the current pipe pile 100, so that the longitudinal limiting area 71 abuts against the vertical limiting surface of the fixed limiting head 8. The movable limiting head 7 provides longitudinal limiting for the pipe pile 100 from the left side, while the right side of the pipe pile 100 is longitudinally limited by the already driven pipe pile 100. Combined with the constraint of the transverse limiting channel 101 in the front-back direction, the pipe pile 100 is effectively limited in all four directions, ensuring the driving accuracy of each pipe pile 100. After the pipe pile 100 is driven, the movable limiting head 7 is removed vertically upwards and then placed at the fixed limiting head 8 corresponding to the next pipe pile 100, and the process is repeated.

[0065] S3: After all the first section of pipe piles 100 are driven, the lifting seat 3 rises along the guide column 106, driving the initial limiting head 2 to rise to the first position. The limiting head body 21 disengages from the inclined surface mating area of ​​the wedge-shaped mating part 22. After losing the wedge-shaped limiting effect, the limiting head body 21 can smoothly rise to the first position without affecting the overall movement of the limiting frame 1. At the same time, the first positioning pile 4 used in the first section of construction is pulled out from the construction ground.

[0066] Then, the limiting frame 1 is moved as a whole along the arrangement direction of the driven pipe piles 100. The moving method is as follows: the winch is fixed in a stable position in front of or to the side of the next construction section, one end of the winch's wire rope is connected to the winch, and the other end is connected to the front end of the limiting frame 1. The winch is started, and the wire rope pulls the limiting frame 1 forward at a uniform speed along the arrangement direction of the driven pipe piles 100. During the moving process, the driven pipe piles 100 pass through the longitudinal passage 102 in sequence, and the limiting frame 1 slides longitudinally to the next construction section. When the limiting frame 1 reaches the preset position of the next construction section, the winch is turned off and the wire rope connection is released.

[0067] Throughout the entire moving process, the limiting frame 1 does not need to be disassembled or lifted away, thus maintaining the integrity of the overall structure and the guiding accuracy. The moving operation is convenient, which can significantly shorten the construction auxiliary time and improve construction efficiency.

[0068] It should be noted that the above-described method of using a winch for traction is only a preferred embodiment. In actual construction, when the construction site is flat and open, a hydraulic jack or an excavator-assisted pushing method can also be used to drive the movement of the limiting frame 1. Those skilled in the art can flexibly choose the pushing and driving method according to the specific construction conditions, and all of these are within the protection scope of this invention.

[0069] S4: After the limiting frame 1 is pushed into place, the lifting seat 3 descends along the guide column 106, driving the initial limiting head 2 to descend to the second position. Under the guidance of the inclined surface of the wedge-shaped mating part 22, the limiting head body 21 moves laterally towards the middle pipe pile 100, closely abutting against the outer circumference of the driven pipe pile 100, connecting the limiting frame 1 and the driven pipe pile 100 into one unit. At this time, the driven pipe pile 100 forms an additional support point in the upper middle part of the L-shaped steel frame arm through the limiting head body 21. When the lateral force generated by the subsequent driving of the pipe pile acts on the limiting frame 1, part of the force is transmitted to the driven pipe pile 100 through this support point and borne by the driven pipe pile 100, thereby reducing the stress burden at the inflection point of the L-shaped steel frame, improving the stress state at the inflection point, and enhancing the deformation resistance of the overall structure of the limiting frame 1. Simultaneously, the second positioning pile 5 is pulled out from the previous construction section and reinstalled in the preset position of the current construction section in the same manner as in S1, thereby limiting and positioning the limiting frame 1. In addition, before each pipe pile 100 is driven into the current construction section, the movable limiting head 7 is placed at the corresponding fixed limiting head 8, and the pipe pile 100 is longitudinally limited in the same manner as in S2 to ensure the driving accuracy of each pipe pile 100.

[0070] S5: After the positioning of the limiting frame 1 in the current construction section is completed, starting with the last pipe pile 100 of the completed construction section, the driving of pipe piles 100 is carried out sequentially along the longitudinal direction. During the driving of each pipe pile 100, the initial limiting head 2 maintains a limiting contact state with the last driven pipe pile 100 of the completed construction section, using the driven pipe pile 100 as a reference to ensure the positional accuracy of the driving of the pipe piles 100 in the current construction section. At the same time, the driving process of each pipe pile 100 utilizes the lateral limiting channel 101 for lateral limiting guidance, combined with the longitudinal limiting of the movable limiting head 7 and the fixed limiting head 8, to ensure the driving accuracy of each pipe pile 100.

[0071] S6: Repeat S3 to S5, that is, push the limiting frame 1 segment by segment and drive the pipe pile 100 segment by segment until the driving construction of all pipe piles 100 is completed.

[0072] During the cyclic construction process, the first positioning pile 4 is only used in the first section of construction. The first positioning pile 4 is no longer needed in subsequent construction sections. The positioning accuracy and deformation resistance of the limiting frame 1 can be guaranteed by relying solely on the limiting contact between the initial limiting head 2 and the already driven pipe pile 100 and the limiting positioning of the second positioning pile 5. This achieves continuous and efficient construction of "protecting piles with piles and cyclic progress".

[0073] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0075] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A guiding construction device based on riverbed interlocking pipe piles, characterized in that: It includes a limiting frame with a lateral limiting channel and a longitudinal passage. The lateral limiting channel is used to limit and guide the pipe piles during the pile driving process in the lateral direction, and the limiting frame can limit and guide several pipe piles arranged in the longitudinal direction at the same time when it is placed. The longitudinal passage is used for the pipe piles after pile driving to pass through, so that the limiting frame as a whole can move longitudinally to the next construction section. The initial limiting head is used to limit and guide the pipe pile in both the lateral and longitudinal directions during the first pile driving process; The lifting seat is connected to the initial limiting head and is used to drive the initial limiting head to switch between a first position and a second position. When the initial limiting head is in the first position, it is separated from the pipe pile after the pile is driven, so that the limiting frame can move as a whole. When it is in the second position, it is in limiting contact with the pipe pile after the pile is driven, and the pipe pile after the pile is driven enhances the structural strength near the longitudinal passage. The first positioning stakes are symmetrically distributed laterally on both sides of the limiting frame, used to limit the limiting frame from both sides, and do not move with the limiting frame. The second positioning stake is used to limit the limiting frame in the longitudinal and transverse directions, and moves with the movement of the limiting frame; The limiting frame includes: transverse limiting portions symmetrically distributed laterally, the gap between the two portions forming a transverse limiting channel; The vertically rising section is fixedly connected to one end of each of the horizontal limiting sections; the longitudinally connecting section is fixedly connected to the end of the horizontal limiting section away from the vertically rising section and fixedly connected between the two vertically rising sections. The guide column is fixedly connected between the longitudinal connecting part and the lateral limiting part between the vertically raised parts, and the lifting seat moves up and down along the guide column; There are at least two sets of guide columns distributed longitudinally, with two guide columns in each set distributed symmetrically laterally. A clamping and reinforcing structure is provided between the lifting seat and one of the sets of guide columns. The clamping and reinforcing structure includes: a wedge-shaped clamping part, which is fixedly set on the guide column; and a wedge-shaped mating area, which is set on the lifting seat and corresponds to the wedge-shaped clamping part. The lifting seat slides with the guide column without the wedge-shaped clamping part and has a clearance fit with the guide column with the wedge-shaped clamping part.

2. The guiding construction device based on river channel interlocking pipe piles according to claim 1, characterized in that: The initial limiting head includes: a limiting head body, which is symmetrically distributed laterally and located on both sides of the pipe pile, and is laterally slidably mounted on the lifting seat; The wedge-shaped mating part is fixedly installed on the limiting frame; when the limiting head body descends with the lifting seat, it engages with the inclined surface of the wedge-shaped mating part, driving the limiting head body to move laterally towards the pipe pile and press against the pipe pile after the pile is driven.

3. The guiding construction device based on riverbed interlocking pipe piles according to claim 1, characterized in that: Both the wedge-shaped clamping part and the wedge-shaped mating area are annular structures.

4. The guiding construction device based on river channel interlocking pipe piles according to claim 1, characterized in that: It also includes a movable limiting head; the limiting frame is provided with several fixed limiting heads that cooperate with the movable limiting head. The fixed limiting head limits the movable limiting head in the longitudinal direction, so that the movable limiting head limits the pipe pile in the longitudinal direction from one side during the pile driving process. After the pipe pile is driven, the movable limiting head is taken out vertically upward.

5. A river channel interlocking pipe pile guiding construction device according to claim 4, characterized in that: The movable limiting head includes a longitudinal limiting area and a lateral limiting area. The lateral limiting area is symmetrically distributed and cooperates with the fixed limiting head to provide lateral limiting constraint on the structure of the limiting frame located on both sides of the pipe pile.

6. A method for guiding construction of riverbed interlocking pipe piles, comprising using a riverbed interlocking pipe pile guiding construction device as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: Place the limiting frame at the first construction position and install the first positioning stake and the second positioning stake at the preset positions to limit and position the limiting frame; S2: Use the initial limiting head to limit and guide the first pipe pile in the lateral and longitudinal directions to complete the driving of the first pipe pile; then drive the remaining pipe piles in sequence along the longitudinal direction until the first section of construction is completed. S3: The lifting seat drives the initial limiting head to rise to the first position, separating it from the pipe pile after pile driving; then the limiting frame is pushed as a whole along the arrangement direction of the driven pipe pile, so that the limiting frame moves to the next construction position, and the driven pipe pile passes through the longitudinal passage. S4: The lifting seat drives the initial limiting head to descend to the second position, so that it makes contact with the already driven pipe pile. The already driven pipe pile enhances the structural strength near the longitudinal passage. At the same time, the second positioning pile is installed in the preset position to limit and position the limiting frame. S5: Starting with the last completed pipe pile, the pipe pile driving work is carried out sequentially along the longitudinal direction until the construction of this section is completed; S6: Repeat steps S3 to S5 until all pipe piles are driven into place.

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