Auxiliary clamping tool in construction process of pc pile

Abstract

The utility model discloses an auxiliary clamping tool in PC pile construction process belongs to building construction technical field. Include: steel pipe stake, larsen steel sheet pile, set up respectively in the radial two opposite sides of steel pipe stake, larsen steel sheet pile extends along the axial direction of steel pipe stake and is connected with steel pipe stake mortise and tenon, steel crossbeam, set up in the end surface of steel pipe stake, steel crossbeam is arranged in parallel with the end surface of steel pipe stake, clamping structure, install on the both ends of steel crossbeam, fixed structure, install in the middle part of steel crossbeam. The utility model forms the structure of three -point stress, effectively inhibits the influence degree of the subsequent steel pipe stake and larsen steel sheet pile in the process of inserting and driving to the steel pipe stake and larsen steel sheet pile that have been constructed, avoids the lateral deviation of the steel pipe stake and larsen steel sheet pile that have been constructed, ensures construction positioning accuracy.

Description

Technical Field

[0001] This utility model relates to an auxiliary clamping tool during the construction of PC piles, belonging to the field of building construction technology. Background Technology

[0002] In the construction of precast concrete (PC) piles, especially in complex conditions such as silty soil strata, the steel pipes and Larssen sheet piles are prone to vertical movement when working alongside them, resulting in poor stability. Therefore, it is necessary to develop an auxiliary clamping tool with three-dimensional constraint stability to address the challenges of construction in complex geological formations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an auxiliary clamping tool for the construction of PC piles, which solves the problem in the prior art that steel pipes and Larssen steel sheet piles that have been driven into place are prone to vertical movement during construction, resulting in poor stability.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: an auxiliary clamping tool for PC pile construction, comprising:

[0005] Steel pipe piles

[0006] Larssen sheet piles are installed on two opposite radial sides of the steel pipe piles. The Larssen sheet piles extend axially along the steel pipe piles and are tenon-and-mortise connected to them.

[0007] A steel crossbeam is installed on the end face of the steel pipe pile, and the steel crossbeam is set parallel to the end face of the steel pipe pile.

[0008] The clamping structure is installed on both ends of the steel crossbeam.

[0009] A fixed structure, installed in the middle of the steel crossbeam.

[0010] There are two steel crossbeams, which are located on both sides of the Larssen sheet pile. The clamping structure is used to clamp the Larssen sheet pile, and the fixing structure fixes the steel crossbeams to the steel pipe pile.

[0011] This utility model is further configured such that the clamping structure includes:

[0012] Clamping plates are installed between the Larssen sheet piles and the two steel beams. One end of the clamping plate abuts against the Larssen sheet pile, and the other end of the clamping plate is inserted into the steel beam.

[0013] Fastening bolts are installed at the junction of the clamping plate and the Larssen sheet pile. The end of the fastening bolt penetrates the clamping plate and abuts against the Larssen sheet pile. The fastening bolt is threadedly connected to the clamping plate.

[0014] The locking part is located at the joint between the steel beam and the clamping plate, and is used to limit the relative sliding between the clamping plate and the steel beam.

[0015] The present invention is further configured such that: the locking part includes an adjustable fastening bolt, the end of which passes through the steel crossbeam and abuts against the clamping plate, and the adjustable fastening bolt is threadedly connected to the steel crossbeam.

[0016] The present invention is further configured such that the fixing structure includes:

[0017] An auxiliary fixing plate is installed on the steel crossbeam. One end of the auxiliary fixing plate passes through the steel crossbeam and extends axially into the steel pipe pile.

[0018] The steel crossbeam bolts extend radially along the steel pipe pile, and sequentially pass through the auxiliary fixing plate located on the steel crossbeam and the steel pipe pile.

[0019] The bolt threads are respectively set on the sides of the auxiliary fixing plates that are far apart from each other and on the outer side of the steel pipe pile. The bolt threads abut against the two auxiliary fixing plates and the outer side of the steel pipe pile respectively. The bolt threads are sleeved on the bolt rod of the steel crossbeam and threadedly connected to the bolt rod of the steel crossbeam.

[0020] The present invention is further provided with a sleeve that restricts the sliding of the auxiliary fixing plate at the end away from the steel pipe pile.

[0021] The present invention is further configured such that: a friction layer is fixedly provided on the contact surface between the clamping plate and the Larssen steel sheet pile, and the friction layer is located between the end of the fastening bolt and the outer side of the Larssen steel sheet pile.

[0022] The beneficial effects of this utility model are: by forming a three-point force-bearing structure, the influence of subsequent steel pipe piles and Larssen steel sheet piles on the already constructed steel pipe piles and Larssen steel sheet piles during the driving process is effectively suppressed, the lateral displacement of the already constructed steel pipe piles and Larssen steel sheet piles is avoided, the stability of the steel pipe piles and Larssen steel sheet piles is improved, and thus the construction accuracy is ensured. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 for Figure 1 A partial structural cross-sectional view along the AA direction;

[0025] Figure 3 for Figure 1 A partial structural cross-sectional view along the BB direction;

[0026] Figure 4 This is a partial structural diagram of the junction between the clamping plate and the Larssen sheet pile of this utility model.

[0027] In the diagram: 1. Steel pipe pile; 2. Larssen sheet pile; 3. Steel beam; 4. Clamping plate; 5. Auxiliary fixing plate; 6. Steel beam bolt; 7. Bolt thread; 8. Adjustable fastening bolt; 9. Fastening bolt; 10. Hoop. Detailed Implementation

[0028] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0029] like Figure 1 As shown, an auxiliary clamping tool for PC pile construction includes a steel pipe pile 1, Larssen sheet piles 2, a steel crossbeam 3, a clamping structure, and a fixing structure. The steel pipe pile 1 is vertically inserted into the construction ground, and lifting holes are opened at the ends of the steel pipe pile 1 above the ground. The Larssen sheet piles 2 are respectively arranged on two opposite radial sides of the steel pipe pile 1, extending along the axial direction of the steel pipe pile 1 and being tenon-and-mortise connected to the steel pipe pile 1. The ends of the Larssen sheet piles 2 are vertically inserted into the construction ground. The steel crossbeam 3 is arranged on the end face of the steel pipe pile 1, parallel to the end face of the steel pipe pile 1. There are two steel crossbeams 3, and the two steel crossbeams 3 are respectively located on both sides of the line connecting the two Larssen sheet piles 2. The steel crossbeam 3 extends from one Larssen sheet pile 2 towards the other Larssen sheet pile 2, and the end of the steel crossbeam 3 extends to the Larssen sheet pile 2. The steel crossbeam 3 is made of Q235B steel and has undergone hot-dip galvanizing treatment, and the thickness of the galvanized layer must be greater than or equal to 85 micrometers. A friction layer may be provided on the side of the steel beam 3 that abuts against the end face of the steel pipe pile 1 to improve the stability of the steel beam 3 when it abuts against the steel pipe pile 1. A clamping structure is installed at both ends of the steel beam 3 extending to the Larssen sheet pile 2, and is used to clamp the Larssen sheet pile 2. A fixing structure is installed in the middle of the steel beam 3, and fixes the steel beam 3 to the steel pipe pile 1.

[0030] like Figure 2 and Figure 4As shown, the clamping structure includes clamping plates 4, fastening bolts 9, and locking parts. The clamping plates 4 are respectively installed between the Larssen sheet pile 2 and the two steel beams 3. The ends of the steel beams 3 are horizontally provided with installation channels. The clamping plates 4 are L-shaped, with the vertical ends of the L-shaped clamping plates 4 abutting against the outer side of the Larssen sheet pile 2, and the horizontal ends of the L-shaped clamping plates 4 inserting into the installation channels opened on the steel beams 3. Fastening bolt 9 is located at the contact point between clamping plate 4 and Larssen sheet pile 2. The end of fastening bolt 9 penetrates through clamping plate 4 and abuts against Larssen sheet pile 2. Fastening bolt 9 and clamping plate 4 are threaded together. A friction layer is fixedly provided on the contact surface between clamping plate 4 and Larssen sheet pile 2. The friction layer is located between the end of fastening bolt 9 and the outer surface of Larssen sheet pile 2. The friction layer can be made of a flexible material with a high coefficient of friction, such as rubber, TPU, nylon, etc. The surface of the friction layer facing Larssen sheet pile 2 is a concave arc surface with anti-slip textured patterns with a contact depth of 1.5-2.5mm and a spacing of 8-12mm. A locking part is located at the insertion point between steel beam 3 and clamping plate 4. The locking part is used to restrict the sliding of clamping plate 4 in the installation channel, preventing relative sliding between steel beam 3 and clamping plate 4. The locking part includes an adjustable fastening bolt 8, the end of which extends through the steel beam 3 into the installation channel. The end of the adjustable fastening bolt 8 can abut against the clamp 4, and the adjustable fastening bolt 8 is threadedly connected to the steel beam 3.

[0031] like Figure 3 As shown, the fixing structure includes an auxiliary fixing plate 5, a steel crossbeam bolt 6, and bolt threads 7. The auxiliary fixing plate 5 is mounted on the steel crossbeam 3, with one end penetrating the steel crossbeam 3 and extending axially into the steel pipe pile 1. The steel crossbeam bolt 6 extends radially along the steel pipe pile 1, sequentially penetrating two different auxiliary fixing plates 5 located on the two steel crossbeams 3 and the opposing walls of the steel pipe pile 1. Bolt threads 7 are respectively located on the mutually distant sides of the auxiliary fixing plates 5 and the outer side of the steel pipe pile 1, respectively abutting against the two auxiliary fixing plates 5 and the outer side of the steel pipe pile 1. Bolt threads 7 are sleeved on the steel crossbeam bolt 6 and threadedly connected to the steel crossbeam bolt 6. A clamp 10 is fixedly installed at the end of the auxiliary fixing plate 5 away from the steel pipe pile 1 to restrict the sliding of the auxiliary fixing plate 5.

[0032] First, assemble the steel crossbeams 3, placing two steel crossbeams 3 parallel to each other across the top of the steel pipe pile 1. Then, insert the end of the steel crossbeam bolt 6 into the steel pipe pile 1 through the original lifting hole at the end of the steel pipe pile 1, and then through two auxiliary fixing plates 5 respectively, finally exiting from another original lifting hole at the end of the steel pipe pile 1. During the process of the crossbeam bolt 6 passing through the steel pipe pile 1 and the auxiliary fixing plate 5, screw the bolt thread 7 onto the crossbeam bolt 6 so that the end of the bolt thread 7 abuts against the steel pipe pile 1 and the auxiliary fixing plate 5 respectively, so that the crossbeam bolt 6 can provide effective tensile force along the extension direction of the crossbeam bolt 6, restricting the displacement of the auxiliary fixing plate 5. At the same time, fix the sleeve 10 to the end of the auxiliary fixing plate 5 to fix the position of the auxiliary fixing plate 5. Through the combined action of the auxiliary fixing plate 5, the crossbeam bolt 6, and the bolt thread 7, the steel crossbeam 3 can be fixed to the end of the steel pipe pile 1. Then, clamping plates 4 are inserted into the sections with installation channels at both ends of the steel beam 3, ensuring tight contact between the clamping plates 4 and the Larssen sheet piles 2. Next, the adjustable fastening bolts 8 are rotated, causing their ends to contact the clamping plates 4 and restricting relative movement between the clamping plates 4 and the steel beam 3. Then, the fastening bolts 9 are rotated and tightened, ensuring their ends contact the Larssen sheet piles 2 and creating a clamping effect. This results in a three-point load-bearing structure formed by the auxiliary fixing plate 5 in the middle of the steel beam 3 and the clamping plates 4 at both ends of the steel beam 3. This completes the three-dimensional constraint on the steel pipe piles 1 and the Larssen sheet piles 2, enabling them to maintain a relatively stable state.

[0033] By forming a three-point force-bearing structure, the impact of subsequent steel pipe piles 1 and Larssen sheet piles 2 on the already constructed steel pipe piles 1 and Larssen sheet piles 2 during the driving process is effectively suppressed, avoiding lateral displacement of the already constructed steel pipe piles 1 and Larssen sheet piles 2 and ensuring construction positioning accuracy.

[0034] A friction layer is provided on the inner side of the clamping plate 4. When the fastening bolt 9 is installed, the end of the fastening bolt 9 passes through the clamping plate 4 but does not pass through the friction layer, so that the friction layer is sandwiched between the fastening bolt 9 and the Larssen steel sheet pile 2, thereby increasing the frictional resistance of the contact surface between the two, so that the clamping plate 4 and the fastening bolt 9 can still achieve firm clamping even in low friction conditions such as silt layer.

[0035] The clamping plate 4 and the auxiliary fixing plate 5 are designed to be detachable and adjustable, allowing for quick adjustment of the clamping spacing and support height, adapting to different pile diameters and complex construction scenarios, and reducing downtime for adjustment.

[0036] The steel beam 3 is made of Q235B steel and has undergone hot-dip galvanizing treatment, which can significantly improve the corrosion resistance of the steel beam 3 and extend the service life of the tool in harsh environments such as humid and saline-alkali environments.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping tool for PC pile construction, characterized in that: include: Steel pipe piles (1), Larssen sheet piles (2) are respectively installed on two opposite radial sides of the steel pipe pile (1). The Larssen sheet piles (2) extend along the axial direction of the steel pipe pile (1) and are tenon-and-mortise connected to the steel pipe pile (1). A steel crossbeam (3) is installed on the end face of the steel pipe pile (1), and the steel crossbeam (3) is installed parallel to the end face of the steel pipe pile (1). The clamping structure is installed on both ends of the steel crossbeam (3). A fixed structure is installed in the middle of the steel crossbeam (3). There are two steel beams (3), and the two steel beams (3) are located on both sides of the Larssen sheet pile (2). The clamping structure is used to clamp the Larssen sheet pile (2), and the fixing structure fixes the steel beams (3) to the steel pipe pile (1).

2. The auxiliary clamping tool for PC pile construction according to claim 1, characterized in that: The clamping structure includes: Clamping plates (4) are respectively installed between the Larssen sheet piles (2) and the two steel beams (3). One end of the clamping plate (4) abuts against the Larssen sheet piles (2), and the other end of the clamping plate (4) is inserted into the steel beams (3). Fastening bolts (9) are installed at the contact point between the clamping plate (4) and the Larssen sheet pile (2). The end of the fastening bolt (9) penetrates the clamping plate (4) and abuts against the Larssen sheet pile (2). The fastening bolt (9) is threadedly connected to the clamping plate (4). The locking part is provided at the insertion point between the steel beam (3) and the clamp (4), and the locking part is used to restrict the relative sliding between the clamp (4) and the steel beam (3).

3. The auxiliary clamping tool for PC pile construction according to claim 2, characterized in that: The locking part includes an adjustable fastening bolt (8), the end of which passes through the steel beam (3) and abuts against the clamp (4), and the adjustable fastening bolt (8) is threadedly connected to the steel beam (3).

4. The auxiliary clamping tool for PC pile construction according to claim 1, characterized in that: The fixed structure includes: An auxiliary fixing plate (5) is installed on the steel crossbeam (3). One end of the auxiliary fixing plate (5) passes through the steel crossbeam (3) and extends along the axial direction of the steel pipe pile (1) into the steel pipe pile (1). The steel crossbeam bolt (6) extends radially along the steel pipe pile (1), and the steel crossbeam bolt (6) passes sequentially through the auxiliary fixing plate (5) located on the steel crossbeam (3) and the steel pipe pile (1). The bolt thread (7) is respectively set on the side of the auxiliary fixing plate (5) that is far apart from each other and on the outer side of the steel pipe pile (1). The bolt thread (7) abuts against the two auxiliary fixing plates (5) and the outer side of the steel pipe pile (1). The bolt thread (7) is sleeved on the steel beam bolt (6) and threadedly connected to the steel beam bolt (6).

5. The auxiliary clamping tool for PC pile construction according to claim 4, characterized in that: A sleeve (10) is fixedly installed at the end of the auxiliary fixing plate (5) away from the steel pipe pile (1) to restrict the sliding of the auxiliary fixing plate (5).

6. The auxiliary clamping tool for PC pile construction according to claim 2, characterized in that: A friction layer is fixedly provided on the contact surface between the clamp (4) and the Larssen sheet pile (2), and the friction layer is located between the end of the fastening bolt (9) and the outer side of the Larssen sheet pile (2).

Images