Self-positioning center-guiding safe and stable piling device and piling method thereof

Abstract

The self-positioning center guiding safe and stable piling device comprises a positioning pile cylinder, the positioning pile cylinder comprises an outer fixing sleeve, inner flexible sleeves are installed at the upper end and the lower end of the outer fixing sleeve through annular supports correspondingly, and inner cavities are formed between the inner flexible sleeves and the outer fixing sleeve; the hydraulic capsules are stored in the inner cavity; the fan-shaped bearing plates are mounted on the inner wall of the inner flexible sleeve and correspond to the hydraulic capsules respectively, a circle is defined by the fan-shaped bearing plates, and intervals are formed between the fan-shaped bearing plates and used for mounting pressure sensors; the horizontal detector is arranged on the outer side of the positioning pile cylinder; and the vertical adjusting assemblies are mounted on the periphery of the positioning pile cylinder. The inner flexible sleeve and the outer fixed sleeve are matched to contain the hydraulic capsule, meanwhile, the fan-shaped bearing plate is installed on the inner wall of the inner flexible sleeve, various sensors are used for detecting the pressure, load and other parameters of the cement pile body, and finally the hydraulic capsule is driven in a feedback mode to drive the fan-shaped bearing plate to apply pressure to the cement pile body. And then upper end impact is matched for piling, the inclined and deviated pile body is continuously vertical, the cost is low, and the precision is high.

Description

Technical Field

[0001] The invention belongs to the technical field of cement pile driving, and in particular relates to a self-positioning center-guided, safe and stable pile driving device and a pile driving method thereof. Background Art

[0002] At present, pile driving (or pile insertion) is mostly carried out by hammer insertion, static pressure insertion or dynamic load insertion, wherein the pile or pile body can be a permanent foundation or a pile or pile body temporarily inserted for the purpose of drilling holes in soft or rheological formations.

[0003] In the process of piling, the existing technology cannot realize the trajectory control during the insertion of the pile body. The slender pile body is prone to deflection during the process of being hammered into the stratum. At present, there is a method of pile driving guidance (guiding the movement trajectory of the pile through a guide frame), but in this method, the guide frame can only be set on the ground or in the pile driving ship, and it will also vibrate and be cheap during the impact of the pile body, especially some relatively slender pile bodies have problems such as difficulty in control. In addition, this equipment has a complex structure and high cost. For the problem of pile body guidance, it only obtains a weak effect at a high cost, which is not worth the loss.

[0004] Therefore, a self-positioning center-guided, safe and stable piling device and a piling method thereof are in urgent need of research. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a self-positioning center-guided, safe and stable piling device and piling method thereof, so as to avoid the problem that the cement pile body is easy to tilt during the piling process, resulting in the instability of the pile body.

[0006] In order to solve the above technical problems, the present invention discloses a self-positioning center-guided, safe and stable piling device, comprising: The positioning pile barrel comprises an outer fixing sleeve, and the inner flexible sleeve is installed at the upper and lower ends of the outer fixing sleeve through annular brackets, and an inner cavity is formed between the inner flexible sleeve and the outer fixing sleeve; a plurality of hydraulic capsules stored in the inner cavity; A plurality of fan-shaped bearing plates are installed on the inner wall of the inner flexible sleeve and correspond to the hydraulic capsules respectively, the fan-shaped bearing plates are surrounded into a circle, and there are intervals between the fan-shaped bearing plates, and the intervals are used to install pressure sensors; A level detector arranged on the outside of the positioning pile cylinder; A vertical adjustment assembly installed around the positioning pile barrel.

[0007] According to one embodiment of the present invention, the vertical adjustment assembly includes pivot handles respectively installed on the upper end and the middle section of the positioning pile barrel; a hydraulic telescopic cylinder and a main support beam respectively pivoted to the upper end pivot handle; an inner support arm connecting the middle section pivot handle and the hydraulic telescopic cylinder, and an outer support arm connecting the inner support arm and the middle section of the main support beam, wherein the hydraulic telescopic cylinder drives the main support beam to be expanded or retracted by telescoping.

[0008] According to one embodiment of the present invention, the main support beam is arc-shaped, and its length is smaller than the height of the positioning pile barrel.

[0009] According to one embodiment of the present invention, the level detector is used to detect the levelness of the positioning pile barrel.

[0010] According to one embodiment of the present invention, the number of the fan-shaped bearing plates is at least 8.

[0011] According to one embodiment of the present invention, a deformation sensor is disposed on the inner surface of the fan-shaped load-bearing plate.

[0012] A piling method of a self-positioning center-guided, safe and stable piling device, comprising: Step a. The impact cube is driven by a crane to continuously provide power for the cement pile to enter the ground for piling; Step b. When the cement pile body reserves 20-30mm of the ground, install the sleeve positioning pile barrel around the cement pile body, position the lower end of the pile barrel deep into the ground, and use the vertical adjustment assembly with the level detector to adjust the positioning pile barrel to keep it perpendicular to the ground; Step c. The hydraulic capsule is hydraulically driven to expand and drive the fan-shaped bearing plate to contact the cement pile body. The pressure sensor and the deformation sensor sense data and feed it back to the high strain pile measuring instrument. The static ultimate bearing capacity of the cement pile body is obtained by using the Case method and the mass-elastic model, and the inclination coefficient of the cement pile body is matched with the Revit tool to obtain the force at each point of the verticalization. The force at each point is the pressure applied by each fan-shaped bearing plate. Step d. respectively drive the hydraulic capsules to drive the fan-shaped bearing plates to press against the cement pile body, and at the same time drive the impact cube through the crane to continuously provide power to the cement pile body until the cement pile body is vertical to the ground.

[0013] Compared with the prior art, the present invention can achieve the following technical effects: The hydraulic capsule is accommodated by the inner flexible sleeve and the outer fixed sleeve. At the same time, a fan-shaped bearing plate is installed on the inner wall of the inner flexible sleeve. Various sensors are used to detect the pressure, load and other parameters of the cement pile. Finally, the hydraulic capsule is driven by feedback to drive the fan-shaped bearing plate to apply pressure to the cement pile, and then the upper end impact is cooperated to carry out piling, and the inclined and offset pile body is continuously verticalized. The cost is low and the accuracy is high.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 Schematic diagram of a self-positioning center-guided, safe and stable piling device according to an embodiment of the present invention; Figure 2 1. It is a top view of the positioning pile cylinder according to an embodiment of the present invention. Figure ID

[0016] Positioning pile cylinder 10, outer fixed sleeve 11, inner flexible sleeve 12, hydraulic capsule 20, fan-shaped bearing plate 30, level detector 40, vertical adjustment component 50, pivot handle 51, hydraulic telescopic cylinder 52, main support beam 53, inner support arm 54, outer support arm 55. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of a self-positioning center-guided, safe and stable piling device according to an embodiment of the present invention; Figure 2 1. It is a top view of the positioning pile cylinder according to an embodiment of the present invention.

[0019] As shown in the figure, a self-positioning center-guided, safe and stable piling device comprises: a positioning pile barrel 10, the positioning pile barrel 10 comprises an outer fixed sleeve 11, the upper and lower ends of the outer fixed sleeve 11 are respectively installed with an inner flexible sleeve 12 through annular brackets, and an inner cavity is formed between the inner flexible sleeve 12 and the outer fixed sleeve 11; a plurality of hydraulic capsules 20 stored in the inner cavity; a plurality of fan-shaped bearing plates 30 installed on the inner wall of the inner flexible sleeve 12 and corresponding to the hydraulic capsules 20 respectively, the fan-shaped bearing plates 30 are surrounded into a circle, and there are intervals between the fan-shaped bearing plates 30, and the intervals are used to install pressure sensors; a level detector 40 arranged on the outside of the positioning pile barrel 10; and a vertical adjustment component 50 installed around the positioning pile barrel 10.

[0020] In one embodiment of the present invention, the outer fixed sleeve 11 and the inner flexible sleeve 12 form the main body of the positioning pile 10, and the inner cavity reserved between the two is used to store the hydraulic capsule 20, which is expanded and retracted by the hydraulic cylinder, thereby driving the inner flexible sleeve 12 to be stressed. The inner wall of the inner flexible sleeve 12 is provided with a plurality of fan-shaped bearing plates 30, which are used to penetrate the cement pile column for guiding detection and deviation correction.

[0021] The number of the fan-shaped bearing plates 30 can be 8, corresponding to 8 hydraulic capsules 20, which are applied, and the inner flexible sleeve 12 in the middle performs transition buffering. In addition, there are equidistant intervals between the fan-shaped bearing plates 30 to provide the travel required for deformation, and pressure sensors can be filled to detect the radial pressure between the plates in real time. In addition, the inner surface of the fan-shaped bearing plate 30 is also provided with a deformation sensor for real-time detection of the real-time pressure of the cement pile body corresponding to each plate.

[0022] The level detector 40 cooperates with the vertical adjustment assembly 50 to install and position the pile barrel 10 so that it remains vertical to the construction ground, and improves the accuracy of guided piling when facing uneven ground.

[0023] In a preferred embodiment, the vertical adjustment assembly 50 includes a pivot handle 51 respectively installed on the upper end and the middle section of the positioning pile barrel 10; a hydraulic telescopic cylinder 52 and a main support beam 53 respectively pivoted to the upper end pivot handle 51; an inner support arm 54 connecting the middle section pivot handle 51 and the hydraulic telescopic cylinder 52, and an outer support arm 55 connecting the inner support arm 54 and the middle section of the main support beam 53, which are pivotally connected to form a connecting rod assembly, wherein the hydraulic telescopic cylinder 52 drives the main support beam 53 to expand or retract by telescoping, thereby reinforcing the positioning pile barrel 10 and maintaining stability during the piling process.

[0024] Furthermore, the main support beam 53 is arc-shaped and its length is less than the height of the positioning pile barrel 10. The arc-shaped design facilitates positioning on the ground and strengthens resistance. The shorter length makes it easier to insert the positioning pile barrel 10 into the ground and enhances stability during use.

[0025] A piling method of a self-positioning center-guided, safe and stable piling device, comprising: Step a. The impact cube is driven by a crane to continuously provide power for the cement pile to enter the ground for piling; Step b. When the cement pile body reserves 20-30mm of the ground, install the sleeve positioning pile barrel around the cement pile body, position the lower end of the pile barrel deep into the ground, and use the vertical adjustment assembly with the level detector to adjust the positioning pile barrel to keep it perpendicular to the ground; Step c. The hydraulic capsule is hydraulically driven to expand and drive the fan-shaped bearing plate to contact the cement pile body. The pressure sensor and the deformation sensor sense data and feed it back to the high strain pile measuring instrument. The static ultimate bearing capacity of the cement pile body is obtained by using the Case method and the mass-elastic model, and the inclination coefficient of the cement pile body is matched with the Revit tool to obtain the force at each point of the verticalization. The force at each point is the pressure applied by each fan-shaped bearing plate. Step d. respectively drive the hydraulic capsules to drive the fan-shaped bearing plates to press against the cement pile body, and at the same time drive the impact cube through the crane to continuously provide power to the cement pile body until the cement pile body is vertical to the ground.

[0026] In summary, the present invention accommodates the hydraulic capsule 20 through the cooperation of the inner flexible sleeve 12 and the outer fixed sleeve 11, and at the same time installs the fan-shaped bearing plate 30 on the inner wall of the inner flexible sleeve 12, and uses various sensors to detect the pressure, load and other parameters of the cement pile body. Finally, the hydraulic capsule 20 is driven by feedback to drive the fan-shaped bearing plate 30 to apply pressure to the cement pile body, and then the upper end impact is cooperated to carry out piling, and the inclined and offset pile body is continuously verticalized, with low cost and high precision.

[0027] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A self-positioning center-guided, safe and stable piling device, characterized in that: include: A positioning pile barrel, the positioning pile barrel comprising an outer fixing sleeve, the upper and lower ends of the outer fixing sleeve are respectively provided with an inner flexible sleeve through annular brackets, and an inner cavity is formed between the inner flexible sleeve and the outer fixing sleeve; a plurality of hydraulic capsules stored in the inner cavity; A plurality of fan-shaped bearing plates are installed on the inner wall of the inner flexible sleeve and respectively correspond to the hydraulic capsules, the fan-shaped bearing plates are surrounded into a circle, and there are intervals between the fan-shaped bearing plates, and the intervals are used to install pressure sensors; A level detector arranged on the outside of the positioning pile cylinder; A vertical adjustment assembly is installed around the positioning pile cylinder.

2. The self-positioning center-guided, safe and stable piling device according to claim 1, characterized in that: The vertical adjustment assembly includes pivot handles respectively installed on the upper end and middle section of the positioning pile barrel; a hydraulic telescopic cylinder and a main support beam respectively pivoted to the upper end pivot handle; an inner support arm connecting the middle section pivot handle and the hydraulic telescopic cylinder, and an outer support arm connecting the inner support arm and the middle section of the main support beam, wherein the hydraulic telescopic cylinder drives the main support beam to be expanded or retracted by telescoping.

3. The self-positioning center-guided, safe and stable piling device according to claim 2, characterized in that: The main support beam is arc-shaped, and its length is smaller than the height of the positioning pile barrel.

4. The self-positioning center-guided, safe and stable piling device according to claim 1, characterized in that: The level detector is used to detect the levelness of the positioning pile barrel.

5. The self-positioning center-guided, safe and stable piling device according to claim 1, characterized in that: The number of the fan-shaped bearing plates is at least 8.

6. The self-positioning center-guided, safe and stable piling device according to claim 1, characterized in that: The inner surface of the fan-shaped bearing plate is provided with a deformation sensor.

7. A piling method applied to the self-positioning center-guided, safe and stable piling device as claimed in claim 1, characterized in that: include: Step a. The impact cube is driven by a crane to continuously provide power for the cement pile to enter the ground for piling; Step b. When the cement pile body reserves 20-30mm of the ground, install the sleeve positioning pile barrel around the cement pile body, position the lower end of the pile barrel deep into the ground, and use the vertical adjustment assembly with the level detector to adjust the positioning pile barrel to keep it perpendicular to the ground; Step c. The hydraulic capsule is hydraulically driven to expand and drive the fan-shaped bearing plate to contact the cement pile body. The pressure sensor and the deformation sensor sense data and feed it back to the high strain pile measuring instrument. The static ultimate bearing capacity of the cement pile body is obtained by using the Case method and the mass-elastic model, and the inclination coefficient of the cement pile body is matched with the Revit tool to obtain the force at each point of the verticalization. The force at each point is the pressure applied by each fan-shaped bearing plate. Step d. respectively drive the hydraulic capsules to drive the fan-shaped bearing plates to press against the cement pile body, and at the same time drive the impact cube through the crane to continuously provide power to the cement pile body until the cement pile body is vertical to the ground.

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