Positioning method and system for inserting and driving of steel pipe piles

Abstract

Disclosed in the present disclosure are a positioning method and system for inserting and driving of steel pipe piles. The system for inserting and driving of steel pipe piles in the present disclosur

Description

TECHNICAL FIELD The present disclosure belongs to the technical field of bridge construction, and particularly relates to a positioning method and system for inserting and driving of steel pipe piles. BACKGROUND Steel pipe piles are widely used in foundation pit supporting and protection and building foundations, and are typically sunk by using a crane in conjunction with a vibratory hammer during construction, thereby achieving inserting and driving operation of the steel pipe piles. However, the accuracy of sinking of the steel pipe piles is difficult to guarantee, and moreover, difficult inserting and driving are caused by boulders or hard strata during construction, resulting in position deviation and tilting of the steel pipe piles. By taking a steel trestle as an instance, repeated pullout for position adjustment will cause loose earth mass around steel pipe piles, and sharp reduction of side friction resistance. Position deviation and tilting of the steel pipe piles will affect the bearing capacity of the steel pipe piles and cause pile-top bailey beam node misalignment, resulting in large safety hazards. Therefore, it is highly necessary to investigate a positioning method for inserting and driving of steel pipe piles, which can satisfy the accuracy requirements for inserting and driving of the steel pipe piles, omit a range of handling measures for reducing and avoiding position deviation of the steel pipe piles, improve convenience of construction, greatly save the cost, and reduce the safety hazards. SUMMARY An objective of the present disclosure is to provide a positioning method for inserting and driving of steel pipe piles so as to solve the above problems. The positioning method solves the position deviation problem during an inserting and driving process of the steel pipe piles, eliminates the safety hazards due to deviation of planar positions and inclinations of the steel pipe piles, and has the advantages of simple structure, good applicability, easy and convenient operation, low investment cost, good popularization prospect, etc. In order to solve the above technical problems, the present disclosure is implemented by means of the technical solutions as follows: In accordance with the present invention there is provided a positioning method for inserting and driving of steel pipe piles, which includes the following steps: step one: after construction of a first section of a first driven steel pipe pile and a first section of a second driven steel pipe pile is completed, mounting supporting assemblies on peripheral sides of both the first driven steel pipe pile and the second driven steel pipe pile, wherein the two supporting assemblies are at the same level; step two: hoisting cross beams and placing the cross beams on supporting plates on both sides of the supporting assemblies, such that both the first driven steel pipe pile and the second driven steel pipe pile are located between the two cross beams; step three: after step two has been completed, mounting a first limiter assembly at each of the first driven steel pipe pile and the second driven steel pipe pile, wherein two limiter buckles on the first limiter assembly are connected to the cross beams by means of fastening bolts; step four: placing a second limiter assembly in a position, where a steel pipe pile needs to be inserted and driven, in an extension direction of the cross beams, and after a planar position is adjusted well, fixing a limiter outer frame on the second limiter assembly to the cross beams by means of fastening bolts; step five: after step four has been completed, hoisting a steel pipe pile to be driven, inserting the steel pipe pile to be driven from the limiter outer frame on the second limiter assembly, and starting inserting and driving of a first section of the steel pipe pile to be driven; step six: after inserting and driving of the first section of the steel pipe pile to be driven are completed, moving and mounting the second limiter assembly at the first driven steel pipe pile, mounting one spare supporting assembly at the steel pipe pile (8) that is subjected to inserting and driving for supporting the two cross beams, and meanwhile, disassembling the supporting assembly at the first driven steel pipe pile for cyclic use; and step seven: utilizing the second limiter assembly at the first driven steel pipe pile as an operating platform, performing lengthening work on the first driven steel pipe pile, and after the welding and lengthening work is completed, utilizing the second driven steel pipe pile (6) and the steel pipe pile to be driven to position the first driven steel pipe pile (5) to achieve inserting and driving of a second section of the first driven steel pipe pile (5), thereby achieving mutual supporting and limiting between the steel pipe piles at different positions. Preferably, in step two, the steps of limiting between the cross beams and the first driven steel pipe pile and limiting between the cross beams and the second driven steel pipe pile are achieved by means of lifting pads. Also in accordance with the present invention there is provided a positioning system for inserting and driving of steel pipe piles, comprising two supporting assemblies, two first limiter assemblies and a second limiter assembly, wherein the first limiter assemblies correspond to the supporting assemblies, the supporting assemblies are fixedly mounted on peripheral sides of the steel pipe piles, two cross beams are supported on tops of the two supporting assemblies, the steel pipe piles are arranged between the two cross beams, the first limiter assemblies are arranged on tops of the two cross beams, the first limiter assemblies are connected to the cross beams by means of fastening bolts, the second limiter assembly is arranged on the tops of two cross beams, and the second limiter assembly is connected to the cross beams by means of fastening bolts. Preferably the supporting assembly comprises two supporting lock hoops which are symmetrically arranged, and each supporting lock hoop is composed of an arc-shaped steel hoop and two supporting plates; and the two supporting plates are fixedly connected to both ends of the arc-shaped steel hoop, the supporting plates on the two supporting lock hoops which are symmetrically arranged are connected by means of fastening bolts, and the arc-shaped steel hoop is tightly attached onto a peripheral side of the corresponding steel pipe pile. Preferably the first limiter assembly comprises two oppositely arranged limiter buckles, the two limiter buckles are arranged on both sides of the corresponding steel pipe pile, and the limiter buckles are connected to the cross beams by means of fastening bolts. Preferably the second limiter assembly comprises a limiter outer frame, and the limiter outer frame is composed of two limiter posts arranged in parallel and two fixing posts arranged in parallel; the two fixing posts are located between the two opposite limiter posts, the fixing posts are fixedly connected to the limiter posts, and the limiter posts are connected to the cross beams by means of fastening bolts; and the limiter outer frame is internally provided with two positioning steel plates which are symmetrically arranged, surfaces of the positioning steel plates are provided with positioning notches, the positioning notches are attached onto the peripheral sides of the steel pipe piles, and the surfaces of the positioning steel plates each are provided with a plurality of stiffening plates. The present disclosure has the following beneficial effects: 1. According to the present disclosure, the inserting and driving precision of the steel pipe piles is improved by means of the limiting assemblies fixed on the steel pipe piles, and being different from a traditional positioning frame which is placed on the ground and has requirements on terrains and flatness, the present disclosure may be used for the conditions such as water and uneven ground. Moreover, the steel pipe piles at different positions may be inserted and driven by lengthening the cross beams, thereby achieving mutual limiting of the steel pipe piles. Furthermore, the present disclosure may be used as the operating platform, such that welding operation may be conveniently performed. 2. According to the present disclosure, section steel and the hoops are utilized, the inserting and driving precision is improved by means of the limiting assemblies fixed on the steel pipe piles, and welding and cutting amount is small. Compared with a traditional positioning frame, the manufacturing process is simplified, and cycle use may be achieved. A simple, convenient and quick positioning method for steel pipe piles is provided for similar construction, which shows excellent technical advantages and good economical efficiency, and has a good popularization prospect. Certainly, it is not necessary for any product implementing the present disclosure to achieve all the advantages described above simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS In order to describe the technical solutions in the examples of the present disclosure more clearly, the accompanying drawings required for describing the examples are briefly described below. Obviously, the accompanying drawings in the following description show merely some examples of the present disclosure, and those of ordinary skill in the art would also be able to derive other accompanying drawings from these accompanying drawings without creative efforts. FIG. 1 is a schematic planar diagram of positioning of steel pipe piles in the present disclosure. FIG. 2 is a schematic elevation diagram of positioning of steel pipe piles in the present disclosure. FIG. 3 is a schematic structural diagram of a second limiting assembly. FIG. 4 is a schematic diagram of a lifting pad of steel pipe piles in the present disclosure. FIG. 5 is a schematic planar diagram of a supporting assembly. FIG. 6 is a schematic elevation diagram of a supporting assembly. FIG. 7 is a schematic diagram of mutual limiting of steel pipe piles in the present disclosure. In the figures, a list of components represented by various reference numerals is as follows: 1-supporting assembly, 11-supporting lock hoop, 111-arc-shaped steel hoop, 112-supporting plate, 2-first limiting assembly, 21-limiting buckle, 3-second limiting assembly, 31-limiting outer frame, 311-limiting post, 312-fixing post, 32-positioning steel plate, 33-positioning notch, 34-stiffening plate, 4-cross beam, 5-first driven steel pipe pile, 6-second driven steel pipe pile, 7-lifting pad, and 8-steel pipe pile to be driven. DETAILED DESCRIPTION OF THE EMBODIMENTS The technical solution in the examples of the present disclosure will be clearly and completely described below with reference to the accompanying drawing in the examples of the present disclosure. Apparently, the described examples are merely part rather than all of the examples of the present disclosure. Based on the examples of the present disclosure, all other examples obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present disclosure. Example 1 Positioning method for inserting and driving of steel pipe piles With reference to FIGs. 1-7, the present disclosure is a positioning method for inserting and driving of steel pipe piles, which includes the following steps: step one: after construction of a first section of a first driven steel pipe pile 5 and a first section of a second driven steel pipe pile 6 is completed, mount supporting assemblies 1 on peripheral sides of both the first driven steel pipe pile 5 and the second driven steel pipe pile 6, where one supporting assembly 1 is connected to the first driven steel pipe pile 5 by means of fastening bolts, the other supporting assembly 1 is connected to the second driven steel pipe pile 6 by means of fastening bolts, and the two supporting assemblies 1 are at the same level; step two: hoist cross beams 4 and place the cross beams on supporting plates on both sides of the supporting assemblies 1, such that both the first driven steel pipe pile 5 and the second driven steel pipe pile 6 are located between the two cross beams 4; step three: after step two has been completed, mount first limiting assemblies 2 at both the first driven steel pipe pile 5 and the second driven steel pipe pile 6, where two limiting buckles 21 on each first limiting assembly 2 are connected to the cross beams 4 by means of fastening bolts; step four: place a second limiting assembly 3 in a position, where a steel pipe pile needs to be inserted and driven, in an extension direction of the cross beams 4, and after a planar position is adjusted well, fix a limiting outer frame 31 on the second limiting assembly 3 to the cross beams 4 by means of fastening bolts; step five: after step four has been completed, hoist a steel pipe pile to be driven 8, insert the steel pipe pile to be driven from the limiting outer frame 31 on the second limiting assembly 3, and start inserting and driving of a first section of the steel pipe pile to be driven 8; step six: after inserting and driving of the first section of the steel pipe pile to be driven 8 are completed, move and mount the second limiting assembly 3 at the first driven steel pipe pile 5, mount one supporting assembly 1 at the steel pipe pile to be driven 8 subjected to inserting and driving for supporting the two cross beams 4, and meanwhile, disassemble the supporting assembly 1 at the first driven steel pipe pile 5; and step seven: utilize the second limiting assembly 3 as an operating platform, perform lengthening work on the steel pipe piles, and after the welding and lengthening work is completed, utilize the first driven steel pipe pile 5 and the steel pipe pile to be driven 8 to position the second driven steel pipe pile 6 to achieve inserting and driving of the first section of the second driven steel pipe pile 6, thereby achieving mutual supporting and limiting between the steel pipe piles at different positions. In this example, step six may also include: after inserting and driving of the first section of the steel pipe pile to be driven 8 are completed, move and mount the second limiting assembly 3 at the second driven steel pipe pile 6, mount one supporting assembly 1 at the steel pipe pile to be driven 8 subjected to inserting and driving for supporting the two cross beams 4, and meanwhile, disassemble the supporting assembly 1 at the second driven steel pipe pile 6. In this example, step seven may also include: utilize the second limiting assembly 3 as an operating platform, perform lengthening work on the steel pipe piles, and after the welding and lengthening work is completed, utilize the second driven steel pipe pile 6 and the steel pipe pile to be driven 8 to position the first driven steel pipe pile 5 to achieve inserting and driving of the first section of the first driven steel pipe pile 5, thereby achieving mutual supporting and limiting between the steel pipe piles at different positions. In this example, in step two, limiting between the cross beams 4 and the first driven steel pipe pile 5 and limiting between the cross beams 4 and the second driven steel pipe pile 6 are achieved by means of lifting pads 7. The present disclosure at least has the following advantages: firstly, simple structure: this device is only composed of section steel and the hoops; secondly, simple and convenient operation: the hoops and the steel pipe piles of this device are connected by means of bolts, the cross beams and limiting frames employ welding connection, and therefore, the effects of being detachable, simple and convenient to operate, and quick are achieved; thirdly, good adaptability: according to this device, the inserting and driving precision of the steel pipe piles is improved by means of the limiting assemblies fixed on the steel pipe piles, being different from a traditional positioning frame which is placed on the ground and has requirements on terrains and flatness, this device may be used for the conditions, such as water and uneven ground, moreover, the steel pipe piles at different positions may be inserted and driven by lengthening the cross beams, thereby achieving mutual limiting of the steel pipe piles, and furthermore, this device may be used as the operating platform, such that welding operation may be conveniently performed; fourthly, good economical efficiency: this device utilizes the section steel and the hoops, the inserting and driving precision is improved by means of the limiting assemblies fixed on the steel pipe piles, welding and cutting amount is small, compared with a traditional positioning frame, the manufacturing process is simplified, and cycle use may be achieved; and fifthly, good popularization prospect: a simple, convenient and quick positioning method for steel pipe piles is provided for similar construction, which shows excellent technical advantages and good economical efficiency, and has a good popularization prospect is achieved. Example 2 Positioning system for inserting and driving of steel pipe piles In this example, the positioning system for inserting and driving of steel pipe piles includes two supporting assemblies 1, two first limiting assemblies 2 and a second limiting assembly 3, where the first limiting assemblies 2 correspond to the supporting assemblies 1. The supporting assemblies 1 are fixedly mounted on peripheral sides of the steel pipe piles, two cross beams 4 are supported on tops of the two supporting assemblies 1, and the steel pipe piles are arranged between the two cross beams 4. The first limiting assemblies 2 are arranged on tops of the two cross beams 4, the first limiting assemblies 2 are connected to the cross beams 4 by means of fastening bolts, the second limiting assembly 3 is arranged on the tops of two cross beams 4, and the second limiting assembly 3 is connected to the cross beams 4 by means of fastening bolts. In this example, each supporting assembly 1 includes two supporting lock hoops 11 which are symmetrically arranged, and each supporting lock hoop 11 is composed of an arc-shaped steel hoop 111 and two supporting plates 112. The two supporting plates 112 are fixedly connected to both ends of the arc-shaped steel hoop 111, the supporting plates 112 on the two supporting lock hoops 11 which are symmetrically arranged are connected by means of fastening bolts, and the arc-shaped steel hoop Illis tightly attached onto a peripheral side of the corresponding steel pipe pile. In this example, each first limiting assembly 2 includes two oppositely arranged limiting buckles 21, the two limiting buckles 21 are arranged on both sides of the corresponding steel pipe pile, and the limiting buckles 21 are connected to the cross beams 4 by means of fastening bolts. In this example, the second limiting assembly 3 includes a limiting outer frame 31, and the limiting outer frame 31 is composed of two limiting posts 311 arranged in parallel and two fixing posts 312 arranged in parallel. The two fixing posts 312 are located between the two opposite limiting posts 311, the fixing posts 312 are fixedly connected to the limiting posts 311, and the limiting posts 311 are connected to the cross beams 4 by means of fastening bolts. The limiting outer frame 31 is internally provided with two positioning steel plates 32 which are symmetrically arranged, surfaces of the positioning steel plates 32 are provided with positioning notches 33, the positioning notches 33 are attached onto the peripheral sides of the steel pipe piles, and the surfaces of the positioning steel plates 32 each are provided with a plurality of stiffening plates 34. In the description of this description, reference to terms “one example”, “instances”, “specific instances”, etc. means that a specific feature, structure, material or characteristic described in combination with the examples or instances are included in at least one example or instance of the present disclosure. In this description, schematic expressions of the above terms do not necessarily refer to the same example or instance. Furthermore, the specific features, structures, materials or characteristics described may be combined in any 5 one or more examples or instances in a suitable manner. The preferred examples of the present disclosure disclosed above are only used to help illustrate the present disclosure. The preferred examples neither describe all the details, nor limit the present disclosure to the specific embodiments described above. Obviously, a plurality of modifications and changes can be made according to the content of this 10 description. This description selects and specifically describes these examples, in order to better explain the principle and practical application of the present disclosure, such that those skilled in the art can well understand and use the present disclosure. The present disclosure is only limited by the claims, their full scope and their equivalents.

Claims

1. A positioning method for inserting and driving of steel pipe piles, comprising the following steps:step one: after construction of a first section of a first driven steel pipe pile (5) and a first section of a second driven steel pipe pile (6) is completed, mounting supporting assemblies (1) on peripheral sides of both the first driven steel pipe pile (5) and the second driven steel pipe pile (6), wherein the two supporting assemblies (1) are at the same level;step two: hoisting cross beams (4) and placing the cross beams on supporting plates (112) on both sides of the supporting assemblies (1), such that both the first driven steel pipe pile (5) and the second driven steel pipe pile (6) are located between the two cross beams (4);step three: after step two has been completed, mounting a first limiter assembly (2) at each of the first driven steel pipe pile (5) and the second driven steel pipe pile (6), wherein two limiter buckles (21) on the first limiter assembly (2) are connected to the cross beams (4) by means of fastening bolts;step four: placing a second limiter assembly (3) in a position, where a steel pipe pile needs to be inserted and driven, in an extension direction of the cross beams (4), and after a planar position is adjusted well, fixing a limiter outer frame (31) on the second limiter assembly (3) to the cross beams (4) by means of fastening bolts;step five: after step four has been completed, hoisting a steel pipe pile to be driven (8), inserting the steel pipe pile to be driven from the limiter outer frame (31) on the second limiter assembly (3), and starting inserting and driving of a first section of the steel pipe pile to be driven (8);step six: after inserting and driving of the first section of the steel pipe pile to be driven (8) are completed, moving and mounting the second limiter assembly (3) at the first driven steel pipe pile (5), mounting one spare supporting assembly (1) at the steel pipe pile (8) that is subjected to inserting and driving for supporting the two cross beams (4), and meanwhile, disassembling the supporting assembly (1) at the first driven steel pipe pile (5) for cyclic use; andstep seven: utilizing the second limiter assembly (3) at the first driven steel pipe pile (5) as an operating platform, performing lengthening work on the first driven steel pipe pile (5), and after the welding and lengthening work is completed, utilizing the second driven steel pipe pile (6) and the steel pipe pile to be driven (8) to position the first driven steel pipe pile(5) to achieve inserting and driving of a second section of the first driven steel pipe pile (5), thereby achieving mutual supporting and limiting between the steel pipe piles at different positions.

2. The positioning method for inserting and driving of steel pipe piles according to claim 1, wherein in step two, limiting between the cross beams (4) and the first driven steel pipe pile (5) and limiting between the cross beams (4) and the second driven steel pipe pile (6) are achieved by means of lifting pads (7).

3. A positioning system for inserting and driving of steel pipe piles, comprising two supporting assemblies (1), two first limiter assemblies (2) and a second limiter assembly (3), wherein the first limiter assemblies (2) correspond to the supporting assemblies (1),the supporting assemblies (1) are fixedly mounted on peripheral sides of the steel pipe piles, two cross beams (4) are supported on tops of the two supporting assemblies (1), the steel pipe piles are arranged between the two cross beams (4),the first limiter assemblies (2) are arranged on tops of the two cross beams (4), the first limiter assemblies (2) are connected to the cross beams (4) by means of fastening bolts, the second limiter assembly (3) is arranged on the tops of two cross beams (4), and the second limiter assembly (3) is connected to the cross beams (4) by means of fastening bolts.

4. The positioning system for inserting and driving of steel pipe piles according to claim 3, wherein the supporting assembly (1) comprises two supporting lock hoops (11) which are symmetrically arranged, and each supporting lock hoop (11) is composed of an arc-shaped steel hoop (111) and two supporting plates (112); andthe two supporting plates (112) are fixedly connected to both ends of the arc-shaped steel hoop (111), the supporting plates (112) on the two supporting lock hoops (11) which are symmetrically arranged are connected by means of fastening bolts, and the arc-shaped steel hoop (111) is tightly attached onto a peripheral side of the corresponding steel pipe pile.

5. The positioning system for inserting and driving of steel pipe piles according to claim 4, wherein the first limiter assembly (2) comprises two oppositely arranged limiter buckles (21), the two limiter buckles (21) are arranged on both sides of the corresponding steel pipe pile, and the limiter buckles (21) are connected to the cross beams (4) by means of fastening bolts.

6. The positioning system for inserting and driving of steel pipe piles according to claim 5, wherein the second limiter assembly (3) comprises a limiter outer frame (31), andthe limiter outer frame (31) is composed of two limiter posts (311) arranged in parallel and two fixing posts (312) arranged in parallel;the two fixing posts (312) are located between the two opposite limiter posts (311), the fixing posts (312) are fixedly connected to the limiter posts (311), and the limiter posts (311) 5 are connected to the cross beams (4) by means of fastening bolts; andthe limiter outer frame (31) is internally provided with two positioning steel plates (32) which are symmetrically arranged, surfaces of the positioning steel plates (32) are provided with positioning notches (33), the positioning notches (33) are attached onto the peripheral sides of the steel pipe piles, and the surfaces of the positioning steel plates (32) each are 10 provided with a plurality of stiffening plates (34).

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