Construction method of inclined pile to edge distance limited area and variable amplitude static force pile presser

Abstract

The application discloses a construction method of a skew pile to a distance-limited area and a variable-amplitude static pile presser, and the method comprises the following steps: S1, pile presser positioning, S2, pile presser placing and debugging, S3, pile presser horizontal calibration, S4, hoisting and feeding piles, S5, pile point position calibration, S6, pile presser inclination calibration, S7, pile presser anchoring, and S8, pile pressing. The variable-amplitude static pile presser is improved in multiple aspects, and the hydraulic pile pressing mechanism of the pile presser can be adjusted in front and back distance on the host platform without moving the host platform, so that the pile pressing into the soil point can be reduced in distance to the side and fine adjusted in front and back direction. The pile presser is installed on the sliding rotary pin shaft, and the overall front and back position of the sliding rotary pin shaft and the hydraulic pile pressing mechanism can be adjusted by the rotating shaft driving mechanism, so that the pile pressing into the soil point can be fine adjusted in front and back direction and reduced in distance to the side, the construction efficiency is improved, and the construction cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic pile press, in particular to a method for construction of inclined pile in a limited distance area and a variable-amplitude static pile press. BACKGROUND

[0002] The static pile press is increasingly valued for its low noise, no vibration, no pollution and high construction efficiency. However, the size of the pile press relying on its own weight as the counterforce increases with the increase of the tonnage of the pile press. In many occasions such as old city reconstruction, the "inclined edge pile" of pile foundation near the wall must be handled, and the distance from the center of the pile to the outermost edge of the equipment is the distance to the edge. The distance to the edge is a very important technical index in the process of foundation pit support inclined pile support construction, mainly because it is limited by the red line range of the land plot, especially in the urban area, the general red line range is 3.5 meters, so the smaller the distance to the edge, the smaller the space occupied in the foundation pit, the larger the construction space. The existing pile press occupies too much space, and the distance from the pile press to the edge of the pile press is relatively large, which cannot meet the construction condition requirements of handling the inclined edge pile in the limited distance area, and the pile press cannot be fine-tuned for pile pressing and centering, thereby restricting the promotion of the advanced construction method of precast pile static pressure construction which has obvious advantages in environmental protection.

[0003] The prior art, the patent number of the patent document authorized by the inventor team of the application is CN201921826532.5, which discloses a variable amplitude static force pile press, which comprises a host platform, a rotating shaft, a hydraulic pile press mechanism, a variable amplitude oil cylinder, a hoisting mechanism, a transverse moving mechanism and a longitudinal moving mechanism. The transverse moving mechanism comprises a first long boat, a second long boat, a first long boat telescopic oil cylinder and a second long boat telescopic oil cylinder. The longitudinal moving mechanism comprises a first short boat, a second short boat, a first short boat telescopic oil cylinder and a second short boat telescopic oil cylinder. The hydraulic pile press mechanism is rotatably connected to the front end of the host platform through the rotating shaft. The two ends of the variable amplitude oil cylinder are respectively hinged to the upper end of the hydraulic pile press mechanism and above the front end of the host platform. The hoisting mechanism is installed above the rear end of the host platform. The first long boat and the second long boat are respectively slidably connected to the front end of the host platform and below the rear end of the host platform. The two ends of the first long boat telescopic oil cylinder are respectively hinged to below the front end of the host platform and the first long boat. The two ends of the second long boat telescopic oil cylinder are respectively hinged to below the rear end of the host platform and the second long boat. The first short boat and the second short boat are respectively slidably connected to below the left side of the host platform and the right side of the host platform. The two ends of the first short boat telescopic oil cylinder are respectively hinged to below the left side of the host platform and the first short boat. The two ends of the second short boat telescopic oil cylinder are respectively hinged to below the right side of the host platform and the second short boat. The pile press occupies a large area, and the rotating connection position of the hydraulic pile press mechanism and the front end of the host platform is fixed. The pile press into the soil point of the hydraulic pile press mechanism cannot be adjusted forward and backward on the pile press platform. Moreover, the distance from the pile press into the soil point to the front end of the pile press is large, which cannot meet the construction condition requirements of processing the bevel pile in the limited area. In addition, when the pile press into the soil point needs to be adjusted forward and backward, the front and rear long boats need to be lifted off the ground, the left and right short boats need to be placed on the ground, and the level of the whole machine needs to be adjusted. Then, the front and rear of the whole machine are moved forward and backward through the forward and backward extension of the short boat telescopic oil cylinder, so that the forward and backward distance of the pile press into the soil point is adjusted. Because the whole machine is heavy, it is difficult to fine-tune during the moving process, and the fine-tuning function cannot be realized. After the forward and backward position adjustment of the pile press is completed, the front and rear long boats are placed on the ground again, and the pile construction can be carried out after the level of the whole machine is adjusted again. The construction efficiency is low.

[0004] Therefore, it is urgent to develop a hydraulic pile press mechanism that can adjust the forward and backward distance on the host platform of a variable amplitude static force pile press and a construction method, so that the distance to the edge of the pile press into the soil point can be reduced, and the forward and backward fine-tuning of the pile press into the soil point can be realized. SUMMARY

[0005] The present application aims at the above-mentioned deficiencies, and provides a to-edge distance limited area inclined pile construction method and amplitude static force pile presser, which solves the problem of adjusting the front and back distance of the hydraulic pile press mechanism on the main machine platform without moving the main machine platform, reduces the to-edge distance of the pile pressing into the soil point, and realizes the front and back fine adjustment of the pile pressing into the soil point through the improvement of the structure design.

[0006] The technical scheme is as follows:

[0007] A to-edge distance limited area inclined pile construction method, comprising the following steps:

[0008] S1, pile machine positioning, moving the amplitude static force pile presser to the to-edge distance limited construction area, the amplitude static force pile presser comprising a main machine platform, a hydraulic pile press mechanism, an amplitude cylinder, a hoisting mechanism, an anchoring support device, a transverse moving mechanism, a longitudinal moving mechanism, a sliding rotary pin shaft longitudinally slidingly connected with the main machine platform, and a rotating shaft driving mechanism for driving the longitudinal sliding of the sliding rotary pin shaft, the transverse moving mechanism comprising a first long boat, a second long boat, a first long boat telescopic cylinder and a second long boat telescopic cylinder, and the longitudinal moving mechanism comprising a first short boat and a second short boat;

[0009] S2, pile machine placement debugging, adjusting the placement position of the amplitude static force pile presser by combining the transverse moving mechanism and the longitudinal moving mechanism, so that the first long boat is close to the construction red line of the construction area and is relatively parallel;

[0010] S3, pile machine horizontal calibration, the first long boat and the second long boat are grounded and forced, the main machine platform is leveled, and the main machine platform is in a horizontal state;

[0011] S4, hoisting and feeding piles, hoisting the to-be-pressed precast pile to the hydraulic pile press mechanism of the amplitude static force pile presser by the hoisting mechanism, clamping the to-be-pressed precast pile, and making the bottom of the to-be-pressed precast pile contact with the top of the foundation of the to-be-constructed inclined edge pile;

[0012] S5, pile point position calibration, extend the first long boat telescopic oil cylinder, the second long boat telescopic oil cylinder, make the main machine platform move along the first long boat, the second long boat in the transverse direction, and make the pile center of the hydraulic pile pressing mechanism and the pile center of the to-be-constructed bevel pile in the transverse direction; the rotation shaft driving mechanism is used to drive the sliding rotation pin shaft to move in the longitudinal direction, and the pile center of the hydraulic pile pressing mechanism and the pile center of the to-be-constructed bevel pile are aligned in the longitudinal direction, so that the pile center of the hydraulic pile pressing mechanism and the pile center of the to-be-constructed bevel pile are aligned; at the same time, the rotation shaft driving mechanism is used to push the sliding rotation pin shaft forward, so as to reduce the distance from the pile pressing into the soil point of the hydraulic pile pressing mechanism to the front end of the whole machine, so as to meet the bevel pile construction in the distance-limited area;

[0013] S6, pile inclination calibration, extend the amplitude oil cylinder, so that the inclination angle of the hydraulic pile pressing mechanism corresponds to the inclination angle of the to-be-constructed bevel pile;

[0014] S7, pile machine anchoring, the rear end of the main machine platform is anchored and supported in the soil layer below the ground by the anchoring and supporting device, so that the center of gravity of the amplitude static pile press is kept stable;

[0015] S8, pile pressing, the hydraulic pile pressing mechanism sends and presses the to-be-pressed precast pile into the position of the to-be-constructed bevel pile.

[0016] The hydraulic pile pressing mechanism comprises a pile gripper, and the step S4 further comprises the following steps:

[0017] S41, the hoisting mechanism hoists the lower end of the to-be-pressed precast pile into the pile gripper of the hydraulic pile pressing mechanism, and the pile gripper clamps the to-be-pressed precast pile.

[0018] The hydraulic pile pressing mechanism further comprises a pile pressing oil cylinder, and the step S8 further comprises the following steps:

[0019] S81, start the pile pressing oil cylinder, drive the pile gripper connected with the pile pressing oil cylinder downward to press the pile, and send and press the to-be-pressed precast pile into the position of the to-be-constructed bevel pile.

[0020] The amplitude variable static force pile driver for implementing the construction method comprises a main machine platform, a hydraulic pile pressing mechanism, an amplitude variable oil cylinder, a hoisting mechanism, a transverse moving mechanism, a longitudinal moving mechanism, two anchoring support devices, a sliding rotary pin shaft in longitudinal sliding connection with the main machine platform, a rotary shaft driving mechanism for driving the sliding rotary pin shaft in longitudinal sliding, the hydraulic pile pressing mechanism is in rotary connection with the front end of the main machine platform through the sliding rotary pin shaft, the two ends of the amplitude variable oil cylinder are respectively hinged to the upper end of the hydraulic pile pressing mechanism and above the front end of the main machine platform, the two anchoring support devices are respectively installed on the two sides of the rear end of the main machine platform, and the hoisting mechanism is installed above the rear end of the main machine platform; the transverse moving mechanism comprises a first long boat, a second long boat, a first long boat telescopic oil cylinder and a second long boat telescopic oil cylinder, the first long boat and the second long boat are respectively in sliding connection with the front end of the main machine platform and below the rear end of the main machine platform, the two ends of the first long boat telescopic oil cylinder are respectively hinged to below the front end of the main machine platform and the first long boat, and the two ends of the second long boat telescopic oil cylinder are respectively hinged to below the rear end of the main machine platform and the second long boat; the longitudinal moving mechanism comprises a first short boat and a second short boat, and the first short boat and the second short boat are respectively in sliding connection with below the left side of the main machine platform and the right side of the main machine platform.

[0021] The sliding rotary pin shaft comprises a first bearing seat, a second bearing seat and a rotary shaft, the main machine platform comprises a platform frame, the front end of the platform frame is provided with a pile driver well, the side walls on the left and right sides of the pile driver well are respectively provided with a first longitudinal slot hole and a second longitudinal slot hole, the first bearing seat and the second bearing seat are respectively installed in the first longitudinal slot hole and the second longitudinal slot hole and are respectively in longitudinal sliding connection with the first longitudinal slot hole and the second longitudinal slot hole, the two ends of the rotary shaft are respectively in rotary connection with the first bearing seat and the second bearing seat, and the hydraulic pile pressing mechanism is installed on the rotary shaft.

[0022] The rotary shaft driving mechanism comprises a first telescopic oil cylinder and a second telescopic oil cylinder, one end of each of the first telescopic oil cylinder and the second telescopic oil cylinder is hinged to the left and right sides of the platform frame, and the other end of each of the first telescopic oil cylinder and the second telescopic oil cylinder is hinged to the two ends of the rotary shaft.

[0023] The host platform further comprises a first outrigger cylinder, a second outrigger cylinder, a third outrigger cylinder and a fourth outrigger cylinder, the first and second outrigger cylinders are respectively installed on the two sides of the front end of the platform frame, the first long boat is slidably connected with the lower ends of the first and second outrigger cylinders, and the two ends of the first long boat telescopic cylinder are respectively hinged to the lower end of the first outrigger cylinder and the left end of the first long boat; the third and fourth outrigger cylinders are respectively installed on the two sides of the rear end of the platform frame, the second long boat is slidably connected with the lower ends of the third and fourth outrigger cylinders, and the two ends of the second long boat telescopic cylinder are respectively hinged to the lower end of the third outrigger cylinder and the left end of the second long boat.

[0024] The host platform further comprises a fifth outrigger cylinder, a sixth outrigger cylinder, a seventh outrigger cylinder and an eighth outrigger cylinder, the fifth and sixth outrigger cylinders are respectively installed on the front and rear ends of the left side of the platform frame, the first short boat is slidably connected with the lower ends of the fifth and sixth outrigger cylinders, the seventh and eighth outrigger cylinders are respectively installed on the front and rear ends of the right side of the platform frame, and the second short boat is slidably connected with the lower ends of the seventh and eighth outrigger cylinders.

[0025] A gap is arranged at the middle of the rear side of the first long boat, and the gap is located below the pile press machine well.

[0026] The hydraulic pile press mechanism comprises an integrated gantry, a pile press cylinder and a pile clamp, the integrated gantry is rotatably connected with the front end of the host platform through the sliding rotary pin shaft, the amplitude cylinder comprises a first amplitude cylinder and a second amplitude cylinder, the lower ends of the first and second amplitude cylinders are hinged to the upper side of the front end of the host platform, the upper ends of the first and second amplitude cylinders are respectively hinged to the left and right sides of the integrated gantry, and the pile clamp is vertically slidably connected with the integrated gantry through the pile press cylinder.

[0027] The anchoring support device comprises an anchoring support, two pressing cylinders and a fixing seat fixed on the host platform, a guide hole is arranged in the middle of the fixing seat, the lower end of the anchoring support passes through the guide hole and is vertically slidably connected with the fixing seat, cylinder mounting holes are respectively arranged on the two sides of the fixing seat, the two pressing cylinders are respectively installed in the two cylinder mounting holes, and the upper ends of the piston rods of the two pressing cylinders are respectively hinged to the two sides of the upper end of the anchoring support.

[0028] Further comprising a control room, the control room is installed on the host platform and located between the hydraulic pile press mechanism and the hoisting mechanism.

[0029] It should be noted that:

[0030] The aforementioned "first, second, …" does not represent a specific number and order, but is only used for distinguishing names.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] The aforementioned "transverse" direction is the left-right direction of the amplitude-variable static force pile press of the product of the present application.

[0033] The aforementioned "longitudinal" direction is the front-rear direction of the amplitude-variable static force pile press of the product of the present application.

[0034] The advantages or principles of the present application are described as follows:

[0035] 1. The present application provides a method for constructing inclined piles in a distance-limited area and an amplitude-variable static force pile press, which solves the problem of adjusting the front-rear distance of the hydraulic pile pressing mechanism of the pile press on the main machine platform, so that it can not only reduce the distance from the pile pressing into the soil to the edge, but also realize the front-rear fine adjustment of the pile pressing into the soil. The amplitude-variable static force pile press comprises a main machine platform, a hydraulic pile pressing mechanism, an amplitude-variable oil cylinder, a hoisting mechanism, an anchoring and supporting device, a transverse moving mechanism, a longitudinal moving mechanism, a sliding and rotating pin shaft longitudinally slidingly connected with the main machine platform, and a rotating shaft driving mechanism for driving the longitudinal sliding of the sliding and rotating pin shaft. The hydraulic pile pressing mechanism of the pile press is installed on the sliding and rotating pin shaft, and the front-rear position of the sliding and rotating pin shaft and the hydraulic pile pressing mechanism can be adjusted by the rotating shaft driving mechanism, so as to realize the front-rear adjustment of the pile pressing into the soil of the pile press. When it is necessary to reduce the distance from the pile pressing into the soil to the front end of the whole machine, the hydraulic pile pressing mechanism can be pushed forward, so as to reduce the distance from the pile pressing into the soil to the edge, so as to meet the construction of the inclined edge pile in the distance-limited area. When it is necessary to adjust the front-rear position of the pile pressing into the soil, the horizontal state of the whole machine can be completed, and the sliding and rotating pin shaft and the hydraulic pile pressing mechanism can be directly pushed by the rotating shaft driving mechanism, so as to realize the fine adjustment of the front-rear position of the pile pressing into the soil, avoid the repeated landing and horizontal adjustment of the pile press, directly adjust the front-rear position by pushing the sliding and rotating pin shaft and the hydraulic pile pressing mechanism in one step, and improve the construction efficiency.

[0036] 2. The oblique pile construction method to the edge distance limited area provided by the application, when calibrating the pile pressing position, the telescopic first long boat telescopic oil cylinder and the second long boat telescopic oil cylinder are used to align the pile pressing center of the hydraulic pile pressing mechanism with the pile center of the oblique edge pile to be constructed in the transverse direction; and the rotation shaft driving mechanism is used to drive the sliding rotation pin shaft to move in the longitudinal direction and align the pile pressing center of the hydraulic pile pressing mechanism with the pile center of the oblique edge pile to be constructed in the longitudinal direction, so as to realize the alignment of the pile pressing into the earth point in the horizontal and longitudinal directions on the plane. In the prior art, the calibration of the pile pressing position needs to be realized through repeated landing and horizontal adjustment of the long and short boats for multiple times, which improves the construction efficiency of the calibration of the pile pressing into the earth point and saves the construction cost.

[0037] 3. The amplitude variable static pile press provided by the application, two anchoring support devices are installed on the two sides of the rear end of the main machine platform, and after the calibration of the pile pressing inclination, the anchoring support devices are used to anchor the rear end of the main machine platform in the soil layer below the ground. When the distance from the pile pressing into the earth point to the front end of the whole machine needs to be reduced, the hydraulic pile pressing mechanism needs to be pushed forward as much as possible, so that the stress center of the hydraulic pile pressing mechanism is moved forward, and thus the gravity center of the pile press is moved forward. Therefore, two anchoring support devices are arranged at the rear end of the main machine platform, which are inserted into the soil layer below the ground at the rear side of the pile press to anchor the pile press, so that the gravity center of the pile press is always kept stable.

[0038] 4. The sliding rotation pin shaft of the application comprises a first bearing seat, a second bearing seat and a rotation shaft. The sliding rotation pin shaft is longitudinally slidably connected with the first longitudinal slot and the second longitudinal slot on the left and right side walls of the pile press through the first bearing seat and the second bearing seat respectively. When the front and rear positions of the sliding rotation pin shaft need to be adjusted, the rotation shaft driving mechanism is used to drive the two ends of the rotation shaft, so that the first bearing seat and the second bearing seat move forward and backward along the longitudinal direction of the first longitudinal slot and the second longitudinal slot respectively, thereby realizing the movement of the sliding rotation pin shaft in the longitudinal direction, and further realizing the forward and backward adjustment of the pile pressing into the earth point of the pile press and the adjustment of the distance from the pile pressing into the earth point to the edge.

[0039] 5. The rotation shaft driving mechanism of the application comprises a first telescopic oil cylinder and a second telescopic oil cylinder. When the front and rear positions of the sliding rotation pin shaft need to be adjusted, the first telescopic oil cylinder and the second telescopic oil cylinder are used to realize the adjustment, which is simple in structure and convenient to operate.

[0040] 6、The host platform of the present application further comprises a first outrigger cylinder, a second outrigger cylinder, a third outrigger cylinder, a fourth outrigger cylinder, the first long boat and the second long boat are slidably connected with the front end and the lower end of the platform frame through the four outrigger cylinders, the two long boats adjust the level of the platform frame through the four outrigger cylinders, which is convenient to operate; the two ends of the first long boat telescopic cylinder are respectively hinged to the lower end of the first outrigger cylinder and the left end of the first long boat, the two ends of the second long boat telescopic cylinder are respectively hinged to the lower end of the third outrigger cylinder and the left end of the second long boat, and when in use, the horizontal movement of the pile driver host platform in the transverse direction can be realized by telescoping the two long boat telescopic cylinders, the horizontal movement distance of the host platform is longer, the structure is ingenious, and the use value is improved.

[0041] 7、The host platform of the present application further comprises a fifth outrigger cylinder, a sixth outrigger cylinder, a seventh outrigger cylinder, an eighth outrigger cylinder, the fifth outrigger cylinder, the sixth outrigger cylinder, the seventh outrigger cylinder and the eighth outrigger cylinder have the same use principle as the first outrigger cylinder, the second outrigger cylinder, the third outrigger cylinder and the fourth outrigger cylinder, and the two short boats can adjust the level of the platform frame through the four outrigger cylinders.

[0042] 8、The present application is provided with a gap in the middle of the rear side of the first long boat, when the sliding rotary pin shaft and the hydraulic pile pressing mechanism are moved forward to the front end, the gap can avoid the first long boat blocking the pile pressing into the soil point of the pile foundation to be constructed, improve the forward movement distance of the pile pressing into the soil point, and further make the distance to the edge of the pile pressing into the soil point smaller.

[0043] 9、The hydraulic pile pressing mechanism of the present application comprises an integrated gantry, a pile pressing cylinder and a pile clamping device, the gantry in the prior art adopts a left-right split structure, the overall rigidity is poor, and deformation and shaking are prone to occur during the amplitude changing process and the pile pressing stress process, the gantry of the present application adopts an integrated gantry structure, which can effectively solve the problem of insufficient overall rigidity, and improve the overall stability and safety of the hydraulic pile pressing mechanism.

[0044] 10、The anchoring support device of the present application comprises an anchoring support, two pressing cylinders and a fixed seat fixed on the host platform, when in use, the anchoring support can be driven to move downward through the telescopic movement of the pressing cylinder, so as to realize the insertion of the anchoring support into the soil layer below the ground, play an anchoring role, thereby being able to offset the horizontal component force newly generated when the pile driver is performing inclined pile static pressure construction, and keep the center of gravity of the pile driver stable at all times.

[0045] 11、The product of the present application further provides a control room for the operation control of the product of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is the flow chart of the inclined pile construction method of the edge distance limited area of the embodiment of the present application.

[0047] Figure 2 is a schematic diagram of the embodiment of the application to the edge distance limited area inclined pile construction method.

[0048] Figure 3 is a three-dimensional schematic diagram of the embodiment of the variable amplitude static force pile press.

[0049] Figure 4 is Figure 3 is a local enlarged view at A in the figure.

[0050] Figure 5 is a left side view of the embodiment of the variable amplitude static force pile press.

[0051] Figure 6 is a right side view of the embodiment of the variable amplitude static force pile press.

[0052] Figure 7 is a bottom view of the embodiment of the variable amplitude static force pile press.

[0053] Figure 8 is a three-dimensional schematic diagram of the embodiment of the anchoring support device.

[0054] Explanation of reference signs:

[0055] 10, main machine platform, 11, platform frame, 111, pile press well, 1111, first longitudinal slot hole, 1112, second longitudinal slot hole, 12, first leg oil cylinder, 13, second leg oil cylinder, 14, third leg oil cylinder, 15, fourth leg oil cylinder, 16, fifth leg oil cylinder, 17, sixth leg oil cylinder, 18, seventh leg oil cylinder, 19, eighth leg oil cylinder, 20, hydraulic pile press mechanism, 21, integrated gantry, 22, pile pressing oil cylinder, 23, pile clamping device, 30, amplitude changing oil cylinder, 31, first amplitude changing oil cylinder, 32, second amplitude changing oil cylinder, 41, hoisting mechanism, 42, anchoring support device, 421, anchoring support, 422, pressing-in oil cylinder, 423, fixed seat, 4231, guide hole, 4232, oil cylinder mounting hole, 43, control room, 51, first long boat, 511, gap notch, 52, second long boat, 53, first long boat telescopic oil cylinder, 54, second long boat telescopic oil cylinder, 61, first short boat, 62, second short boat, 70, sliding rotary pin shaft, 71, first bearing seat, 72, second bearing seat, 73, rotating shaft, 80, rotating shaft driving mechanism, 81, first telescopic oil cylinder, 82, second telescopic oil cylinder, 90, precast pile. DETAILED DESCRIPTION

[0056] The embodiments of the application will be described in detail below.

[0057] The application provides a construction method of a skew pile to a limited distance area and a variable-amplitude static pile presser, in order to improve the problem that the variable-amplitude static pile presser developed by the inventor previously cannot adjust the front and back distance of the hydraulic pile press mechanism 20, a new variable-amplitude static pile presser and a construction method are designed, so that the pile press into the soil point can be reduced to the limited distance, and the front and back fine adjustment of the pile press into the soil point can be realized, and the method is mainly applied to the skew pile construction of the limited distance.

[0058] In order to make the application more comprehensible, the application will be described more fully below with reference to the attached drawings. The preferred embodiments of the application are shown in the drawings. However, the application can be realized in many different forms and should not be limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the application can be more comprehensive and thorough.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0060] The exemplary embodiments will be described in detail hereinbelow with reference to the attached drawings. In the following description, the same numbers are used to indicate the same elements in different drawings. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0061] Embodiment 1:

[0062] Referring to Figures 1 to 8 As shown in the drawings, a construction method of a skew pile to a limited distance area comprises the following steps:

[0063] S1, the pile press is positioned, the variable-amplitude static pile presser is moved to the limited distance area to be constructed, the variable-amplitude static pile presser comprises a host platform 10, a hydraulic pile press mechanism 20, a variable-amplitude oil cylinder 30, a hoisting mechanism 41, an anchoring and supporting device 42, a transverse moving mechanism, a longitudinal moving mechanism, a sliding and rotating pin shaft 70 longitudinally slidably connected with the host platform 10, a rotating shaft driving mechanism 80 for driving the sliding and rotating pin shaft 70 to longitudinally slide, the transverse moving mechanism comprises a first long boat 51, a second long boat 52, a first long boat telescopic oil cylinder 53, and a second long boat telescopic oil cylinder 54, the longitudinal moving mechanism comprises a first short boat 61 and a second short boat 62; the hydraulic pile press mechanism 20 comprises a pile clamp 23 and a pile press oil cylinder 22.

[0064] S2, pile machine placement debugging, the horizontal movement mechanism and the longitudinal movement mechanism are combined to adjust the placement position of the amplitude static force pile driver, so that the first long boat 51 is close to the construction red line of the area to be constructed, and is relatively parallel;

[0065] S3, pile machine horizontal calibration, the first long boat 51 and the second long boat 52 are grounded and stressed, and the main machine platform 10 is leveled to make the main machine platform 10 in a horizontal state;

[0066] S4, hoisting and feeding piles, the hoisting mechanism 41 hoists the precast pile 90 to be sent to the hydraulic pile pressing mechanism 20 of the amplitude static force pile driver for clamping, so that the bottom of the precast pile 90 to be sent is in contact with the top of the foundation of the inclined edge pile to be constructed;

[0067] S41, the hoisting mechanism 41 hoists the lower end of the precast pile 90 to be sent into the pile clamp 23 of the hydraulic pile pressing mechanism 20, and the pile clamp 23 clamps the precast pile 90 to be sent;

[0068] S5, pile point position calibration, the telescopic first long boat telescopic cylinder 53 and the telescopic second long boat telescopic cylinder 54 are used to move the main machine platform 10 in the transverse direction along the first long boat 51 and the second long boat 52, and the pile pressing center of the hydraulic pile pressing mechanism 20 is aligned with the pile center of the inclined edge pile to be constructed in the transverse direction; the rotation shaft driving mechanism 80 is used to drive the sliding rotation pin shaft 70 to move in the longitudinal direction, and the pile pressing center of the hydraulic pile pressing mechanism 20 is aligned with the pile center of the inclined edge pile to be constructed in the longitudinal direction, so that the pile pressing center of the hydraulic pile pressing mechanism 20 is aligned with the pile center of the inclined edge pile to be constructed; at the same time, the rotation shaft driving mechanism 80 is used to push the sliding rotation pin shaft 70 forward, so as to reduce the distance from the pile pressing into the soil point of the hydraulic pile pressing mechanism 20 to the front end of the whole machine, so as to meet the inclined edge pile construction in the distance limited area;

[0069] S6, pile pressing inclination calibration, the telescopic amplitude cylinder 30 is used to make the inclination angle of the hydraulic pile pressing mechanism 20 correspond to the inclination angle of the inclined edge pile to be constructed;

[0070] S7, pile machine anchoring, the rear end of the main machine platform 10 is anchored and supported in the soil layer below the ground by the anchoring support device 42, so that the center of gravity of the amplitude static force pile driver remains stable;

[0071] S8, pile pressing, the hydraulic pile pressing mechanism 20 sends the precast pile 90 to be pressed into the position of the inclined edge pile to be constructed;

[0072] S81, start the pile pressing cylinder 22, drive the pile clamp 23 connected with the pile pressing cylinder 22 to press the pile downward, and send the precast pile 90 to be pressed into the position of the inclined edge pile to be constructed.

[0073] The application further provides a variable-amplitude static force pile press for implementing the construction method, which comprises a main machine platform 10, a hydraulic pile press mechanism 20, a variable-amplitude oil cylinder 30, a hoisting mechanism 41, a transverse moving mechanism, a longitudinal moving mechanism, two anchoring support devices 42, a sliding rotary pin shaft 70 longitudinally slidably connected with the main machine platform 10, a rotating shaft driving mechanism 80 for driving the sliding rotary pin shaft 70 to longitudinally slide, the hydraulic pile press mechanism 20 is rotationally connected with the front end of the main machine platform 10 through the sliding rotary pin shaft 70, the two ends of the variable-amplitude oil cylinder 30 are respectively hingedly connected with the upper end of the hydraulic pile press mechanism 20 and above the front end of the main machine platform 10, the two anchoring support devices 42 are respectively installed on the two sides of the rear end of the main machine platform 10, and the hoisting mechanism 41 is installed above the rear end of the main machine platform 10; the transverse moving mechanism comprises a first long boat 51, a second long boat 52, a first long boat telescopic oil cylinder 53 and a second long boat telescopic oil cylinder 54, the first long boat 51 and the second long boat 52 are respectively slidably connected with the front end of the main machine platform 10 and below the rear end of the main machine platform 10, the two ends of the first long boat telescopic oil cylinder 53 are respectively hingedly connected with below the front end of the main machine platform 10 and the first long boat 51, and the two ends of the second long boat telescopic oil cylinder 54 are respectively hingedly connected with below the rear end of the main machine platform 10 and the second long boat 52; and the longitudinal moving mechanism comprises a first short boat 61 and a second short boat 62, the first short boat 61 and the second short boat 62 are respectively slidably connected with below the left side of the main machine platform 10 and the right side of the main machine platform 10.

[0074] The application provides a construction method of a pile with a limited distance to the edge and a variable amplitude static pile presser, which solves the problem of adjusting the distance between the hydraulic pile presser and the front and back of the main machine platform 10, so as to reduce the distance between the pile and the edge and realize the front and back adjustment of the pile, through the improvement of the structure in multiple aspects. The variable amplitude static pile presser comprises a main machine platform 10, a hydraulic pile presser 20, a variable amplitude oil cylinder 30, a lifting mechanism 41, an anchoring support device 42, a transverse moving mechanism, a longitudinal moving mechanism, a sliding rotary pin shaft 70 which is longitudinally slidably connected with the main machine platform 10, and a rotating shaft driving mechanism 80 which is used for driving the longitudinal sliding of the sliding rotary pin shaft 70. The hydraulic pile presser 20 is installed on the sliding rotary pin shaft 70, and the front and back position of the sliding rotary pin shaft 70 and the hydraulic pile presser 20 can be adjusted by the rotating shaft driving mechanism 80, so as to realize the front and back adjustment of the pile. When it is needed to reduce the distance between the pile and the edge, the hydraulic pile presser 20 can be pushed forward, so as to reduce the distance between the pile and the edge and meet the construction requirement of the pile with a limited distance to the edge. When it is needed to adjust the front and back position of the pile, the sliding rotary pin shaft 70 and the hydraulic pile presser 20 can be directly pushed by the rotating shaft driving mechanism 80 in the state that the machine is horizontally adjusted, so as to realize the fine adjustment of the front and back position of the pile, avoid the repeated landing and horizontal adjustment of the machine, realize the front and back adjustment of the pile by one step, and improve the construction efficiency.

[0075] The application provides a construction method of a pile with a limited distance to the edge, which comprises the following steps: when the pile position is calibrated, the first long boat telescopic oil cylinder 53 and the second long boat telescopic oil cylinder 54 are used to align the pile center of the hydraulic pile presser 20 with the pile center of the pile to be constructed in the transverse direction; the rotating shaft driving mechanism 80 is used to drive the sliding rotary pin shaft 70 to move in the longitudinal direction, and the pile center of the hydraulic pile presser 20 is aligned with the pile center of the pile to be constructed in the longitudinal direction, so as to realize the alignment of the pile in the transverse and longitudinal directions. In the prior art, the pile position needs to be calibrated through the repeated landing and horizontal adjustment of the long and short boats, so as to improve the construction efficiency of the pile calibration and save the construction cost.

[0076] The amplitude variable static force pile press machine is provided with two anchoring support devices 42 on the two sides of the rear end of the main machine platform 10, and the anchoring support devices 42 are used to anchor the rear end of the main machine platform 10 in the soil layer below the ground after the inclination of the pile press is calibrated. When the distance from the soil entering point of the pile press to the front end of the whole machine needs to be reduced, the hydraulic pile press mechanism 20 needs to be pushed forward as far as possible, so that the stress center of the hydraulic pile press mechanism 20 is close to the front end, and the center of gravity of the pile press is moved forward. Therefore, two anchoring support devices 42 are arranged at the rear end of the main machine platform 10, the anchoring support devices 42 are inserted into the soil layer below the ground on the rear side of the pile press, and the anchoring support devices 42 play the role of anchoring, so that the center of gravity of the pile press is always stable.

[0077] The sliding rotary pin shaft 70 includes a first bearing seat 71, a second bearing seat 72 and a rotating shaft 73, the main machine platform 10 includes a platform frame 11, the front end of the platform frame 11 is provided with a pile press well 111, the left and right side walls of the pile press well 111 are respectively provided with a first longitudinal slot hole 1111 and a second longitudinal slot hole 1112, the first bearing seat 71 and the second bearing seat 72 are respectively arranged in the first longitudinal slot hole 1111 and the second longitudinal slot hole 1112 and are respectively connected with the first longitudinal slot hole 1111 and the second longitudinal slot hole 1112 in the longitudinal direction, and the two ends of the rotating shaft 73 are respectively connected with the first bearing seat 71 and the second bearing seat 72 in a rotating mode, and the hydraulic pile press mechanism 20 is arranged on the pile press well 111 through the rotating shaft 73. The first bearing seat 71 and the second bearing seat 72 are respectively connected with the first longitudinal slot hole 1111 and the second longitudinal slot hole 1112 on the left and right side walls of the pile press well 111 in the longitudinal direction through the first bearing seat 71 and the second bearing seat 72, when the front and rear positions of the sliding rotary pin shaft 70 need to be adjusted, the two ends of the rotating shaft 73 can be driven by the rotating shaft driving mechanism 80, so that the first bearing seat 71 and the second bearing seat 72 are respectively moved forward and backward along the longitudinal direction of the first longitudinal slot hole 1111 and the second longitudinal slot hole 1112, thereby realizing the movement of the sliding rotary pin shaft 70 in the longitudinal direction, and further realizing the forward and backward adjustment of the soil entering point of the pile press and the adjustment of the distance from the soil entering point to the side.

[0078] The rotating shaft driving mechanism 80 includes a first telescopic oil cylinder 81 and a second telescopic oil cylinder 82, one end of each of the first telescopic oil cylinder 81 and the second telescopic oil cylinder 82 is hingedly connected with the left and right sides of the platform frame 11, and the other end of each of the first telescopic oil cylinder 81 and the second telescopic oil cylinder 82 is hingedly connected with the two ends of the rotating shaft 73. When the front and rear positions of the sliding rotary pin shaft 70 need to be adjusted, the first telescopic oil cylinder 81 and the second telescopic oil cylinder 82 can be used to realize the adjustment, and the structure is simple and the operation is convenient.

[0079] The host platform 10 further comprises a first outrigger cylinder 12, a second outrigger cylinder 13, a third outrigger cylinder 14, a fourth outrigger cylinder 15, a fifth outrigger cylinder 16, a sixth outrigger cylinder 17, a seventh outrigger cylinder 18, and an eighth outrigger cylinder 19. The first outrigger cylinder 12 and the second outrigger cylinder 13 are respectively installed on the two sides of the front end of the platform frame 11. The first long boat 51 is slidably connected with the lower ends of the first outrigger cylinder 12 and the second outrigger cylinder 13. The two ends of the first long boat telescopic cylinder 53 are respectively hinged to the lower end of the first outrigger cylinder 12 and the left end of the first long boat 51. The third outrigger cylinder 14 and the fourth outrigger cylinder 15 are respectively installed on the two sides of the rear end of the platform frame 11. The second long boat 52 is slidably connected with the lower ends of the third outrigger cylinder 14 and the fourth outrigger cylinder 15. The two ends of the second long boat telescopic cylinder 54 are respectively hinged to the lower end of the third outrigger cylinder 14 and the left end of the second long boat 52. The first long boat 51 and the second long boat 52 are slidably connected with the front end and the lower end of the platform frame 11 through the four outrigger cylinders. The two long boats adjust the level of the platform frame 11 through the four outrigger cylinders, which is convenient to operate. The two ends of the first long boat telescopic cylinder 53 are respectively hinged to the lower end of the first outrigger cylinder 12 and the left end of the first long boat 51. The two ends of the second long boat telescopic cylinder 54 are respectively hinged to the lower end of the third outrigger cylinder 14 and the left end of the second long boat 52. During use, the two long boat telescopic cylinders can be used to realize the transverse movement of the pile driver host platform 10 in the transverse direction, so that the transverse movement distance of the host platform 10 is longer, the structure is ingenious, and the use value is improved.

[0080] The fifth outrigger cylinder 16 and the sixth outrigger cylinder 17 are respectively installed on the front and rear ends of the left side of the platform frame 11. The first short boat 61 is slidably connected with the lower ends of the fifth outrigger cylinder 16 and the sixth outrigger cylinder 17. The seventh outrigger cylinder 18 and the eighth outrigger cylinder 19 are respectively installed on the front and rear ends of the right side of the platform frame 11. The second short boat 62 is slidably connected with the lower ends of the seventh outrigger cylinder 18 and the eighth outrigger cylinder 19. The fifth outrigger cylinder 16, the sixth outrigger cylinder 17, the seventh outrigger cylinder 18, and the eighth outrigger cylinder 19 have the same use principle as the first outrigger cylinder 12, the second outrigger cylinder 13, the third outrigger cylinder 14, and the fourth outrigger cylinder 15, and can realize the adjustment of the level of the platform frame 11 by the two short boats through the four outrigger cylinders.

[0081] The middle of the rear side of the first long boat 51 is provided with a gap 511. The gap 511 is located below the pile driver well 111. When the sliding rotary pin 70 and the hydraulic pile driver mechanism 20 are moved to the front end, the gap 511 can avoid the first long boat 51 blocking the pile driving into the soil point of the pile foundation to be constructed, improve the forward movement distance of the pile driving into the soil point, and further make the distance to the edge of the pile driving into the soil point smaller.

[0082] The hydraulic pile pressing mechanism 20 comprises an integrated gantry 21, a pile pressing oil cylinder 22 and a pile clamping device 23, the integrated gantry 21 is rotationally connected to the front end of the main machine platform 10 through a sliding rotation pin 70, the luffing oil cylinder 30 comprises a first luffing oil cylinder 31 and a second luffing oil cylinder 32, the lower ends of the first luffing oil cylinder 31 and the second luffing oil cylinder 32 are hingedly connected to the upper side of the front end of the main machine platform 10, the upper ends of the first luffing oil cylinder 31 and the second luffing oil cylinder 32 are hingedly connected to the left side and the right side of the integrated gantry 21 respectively, and the pile clamping device 23 is vertically slidably connected to the integrated gantry 21 through the pile pressing oil cylinder 22. The gantry in the prior art adopts a left-right split structure, and the overall rigidity is poor, and deformation and shaking are prone to occur during the luffing process and the pile pressing stress process, the gantry of the present application adopts the integrated gantry 21 structure, and the problem of insufficient overall rigidity can be effectively solved, and the overall stability and safety of the hydraulic pile pressing mechanism 20 are improved.

[0083] The anchoring support device 42 comprises an anchoring support 421, two pressing oil cylinders 422 and a fixing base 423 fixed on the main machine platform 10, the middle part of the fixing base 423 is provided with a guide hole 4231, the lower end of the anchoring support 421 passes through the guide hole 4231 and is vertically slidably connected to the fixing base 423, the two sides of the fixing base 423 are respectively provided with oil cylinder mounting holes 4232, the two pressing oil cylinders 422 are respectively mounted on the two oil cylinder mounting holes 4232, and the upper ends of the piston rods of the two pressing oil cylinders 422 are respectively hingedly connected to the two sides of the upper end of the anchoring support 421. In use, through the extension and retraction movement of the pressing oil cylinders 422, the anchoring support 421 can be driven to move downward, so that the anchoring support 421 is inserted into the soil layer below the ground, and the anchoring effect is achieved, so that the horizontal component force newly generated by the pile press during the inclined pile static pressure construction can be offset, and the center of gravity of the pile press can always remain stable.

[0084] Embodiment 2:

[0085] The luffing static force pile press provided in Embodiment 2 of the present application is basically the same as that in Embodiment 1, and the difference lies in that the luffing static force pile press further comprises a control room 43, the control room 43 is mounted on the main machine platform 10 and located between the hydraulic pile pressing mechanism 20 and the hoisting mechanism 41. The control room 43 is used for operation control of the product of the present application.

[0086] The prototype of the present application has been tested in the research and development test site of the company, and the practical application shows that the inclined pile construction method and the luffing static force pile press provided by the present application can be used in the inclined pile construction scene in the to-edge distance limited area (especially in the urban area), which can not only reduce the to-edge distance of the pile pressing into the soil point, but also realize the front and rear fine adjustment of the pile pressing into the soil point, improve the construction efficiency and save the construction cost.

[0087] The above merely illustrates the specific embodiments of the present application, and does not limit the protection scope of the present application; any replacement and improvement made without violating the concept of the present application shall fall within the protection scope of the present application.

Claims

1. A method for construction of a batter pile to a distance-limited area, characterized by, The method comprises the following steps: S1, the pile machine is in place, and a variable amplitude static pile press is moved to a construction area with limited distance, the variable amplitude static pile press comprising a main machine platform, a hydraulic pile press mechanism, a variable amplitude oil cylinder, a hoisting mechanism, an anchoring support device, a transverse moving mechanism, a longitudinal moving mechanism, a sliding rotary pin shaft in longitudinal sliding connection with the main machine platform, a rotating shaft driving mechanism for driving the sliding rotary pin shaft to longitudinally slide, the transverse moving mechanism comprising a first long boat, a second long boat, a first long boat telescopic oil cylinder and a second long boat telescopic oil cylinder, and the longitudinal moving mechanism comprising a first short boat and a second short boat; The sliding rotary pin shaft comprises a first bearing seat, a second bearing seat and a rotating shaft, the main machine platform comprises a platform frame, the front end of the platform frame is provided with a pile press well, the left and right side walls of the pile press well are respectively provided with a first longitudinal slot and a second longitudinal slot, the first bearing seat and the second bearing seat are respectively installed in the first longitudinal slot and the second longitudinal slot and are in longitudinal sliding connection with the first longitudinal slot and the second longitudinal slot, and the two ends of the rotating shaft are respectively in rotary connection with the first bearing seat and the second bearing seat, the hydraulic pile press mechanism is installed on the rotating shaft and the inclination angle of the hydraulic pile press mechanism is adjusted through the telescopic variable amplitude oil cylinder; The rotating shaft driving mechanism comprises a first telescopic oil cylinder and a second telescopic oil cylinder, one end of each of the first telescopic oil cylinder and the second telescopic oil cylinder is hingedly connected to the left and right sides of the platform frame, and the other end of each of the first telescopic oil cylinder and the second telescopic oil cylinder is hingedly connected to the two ends of the rotating shaft; S2, the pile machine is placed and debugged, the placing position of the variable amplitude static pile press is adjusted by combining the transverse moving mechanism and the longitudinal moving mechanism, the first long boat is close to the construction red line of the construction area and is relatively parallel to the construction red line; S3, the pile machine is horizontally calibrated, the first long boat and the second long boat are grounded, the main machine platform is leveled, and the main machine platform is in a horizontal state; S4, the pile is hoisted and fed, the precast pile to be sent and pressed is hoisted to the hydraulic pile press mechanism of the variable amplitude static pile press by the hoisting mechanism, the bottom of the precast pile to be sent and pressed is in contact with the top of the foundation of the constructed bevel edge pile, and the precast pile to be sent and pressed is clamped; S5, the pile point position is calibrated, the first long boat telescopic oil cylinder and the second long boat telescopic oil cylinder are telescoped, the main machine platform is moved in the transverse direction along the first long boat and the second long boat, the pile center of the hydraulic pile press mechanism is aligned with the pile center of the constructed bevel edge pile in the transverse direction, the sliding rotary pin shaft is driven to move in the longitudinal direction by the rotating shaft driving mechanism, the pile center of the hydraulic pile press mechanism is aligned with the pile center of the constructed bevel edge pile in the longitudinal direction, the pile center of the hydraulic pile press mechanism is aligned with the pile center of the constructed bevel edge pile, the sliding rotary pin shaft is pushed forward by the rotating shaft driving mechanism, the distance from the pile pressing into the earth of the hydraulic pile press mechanism to the front end of the whole machine is reduced, and the distance meets the requirement of the bevel edge pile construction in the area with limited distance; S6, the pile pressing inclination is calibrated, the variable amplitude oil cylinder is telescoped, and the inclination angle of the hydraulic pile press mechanism corresponds to the inclination angle of the constructed bevel edge pile. S7, pile anchor, anchor the rear end of the main machine platform in the soil layer below the ground by using anchor support device, so as to keep the center of gravity of the amplitude static force pile press stable; S8, pile pressing, the hydraulic pile pressing mechanism sends the precast pile to be pressed into the position of the bevel pile to be constructed.

2. The method of claim 1, wherein the method further comprises: The hydraulic pile pressing mechanism comprises a pile gripper, and the step S4 further comprises the following steps: S41, the hoisting mechanism hoists the lower end of the precast pile to be pressed into the pile gripper of the hydraulic pile pressing mechanism, and the pile gripper clamps the precast pile to be pressed.

3. The method of claim 2, wherein the method further comprises: The hydraulic pile pressing mechanism further comprises a pile pressing oil cylinder, and the step S8 further comprises the following steps: S81, start the pile pressing oil cylinder, drive the pile gripper connected with the pile pressing oil cylinder to press the pile downward, and send the precast pile to be pressed into the position of the bevel pile to be constructed.

4. A jacking machine for performing the method according to any one of claims 1 to 3, characterized in that The main machine platform, the hydraulic pile pressing mechanism, the amplitude oil cylinder, the hoisting mechanism, the transverse moving mechanism, the longitudinal moving mechanism, the two anchor support devices, the sliding rotation pin shaft longitudinally slidingly connected with the front end of the main machine platform, the rotation shaft driving mechanism for driving the sliding rotation pin shaft to longitudinally slide, the hydraulic pile pressing mechanism is rotationally connected with the front end of the main machine platform through the sliding rotation pin shaft, the two ends of the amplitude oil cylinder are respectively hinged to the upper end of the hydraulic pile pressing mechanism and above the front end of the main machine platform, the two anchor support devices are respectively installed on the two sides of the rear end of the main machine platform, and the hoisting mechanism is installed above the rear end of the main machine platform; the transverse moving mechanism comprises a first long ship, a second long ship, a first long ship telescopic oil cylinder and a second long ship telescopic oil cylinder, the first long ship and the second long ship are respectively slidingly connected with the front end of the main machine platform and below the rear end of the main machine platform, the two ends of the first long ship telescopic oil cylinder are respectively hinged to below the front end of the main machine platform and the first long ship, and the two ends of the second long ship telescopic oil cylinder are respectively hinged to below the rear end of the main machine platform and the second long ship; the longitudinal moving mechanism comprises a first short ship and a second short ship, and the first short ship and the second short ship are respectively slidingly connected with below the left side of the main machine platform and below the right side of the main machine platform.

5. A static pile press according to claim 4, wherein The main machine platform further comprises a first supporting leg oil cylinder, a second supporting leg oil cylinder, a third supporting leg oil cylinder and a fourth supporting leg oil cylinder, the first supporting leg oil cylinder and the second supporting leg oil cylinder are respectively installed on the two sides of the front end of the platform frame, the first long ship is slidingly connected with the lower ends of the first supporting leg oil cylinder and the second supporting leg oil cylinder, and the two ends of the first long ship telescopic oil cylinder are respectively hinged to the lower end of the first supporting leg oil cylinder and the left end of the first long ship; the third supporting leg oil cylinder and the fourth supporting leg oil cylinder are respectively installed on the two sides of the rear end of the platform frame, the second long ship is slidingly connected with the lower ends of the third supporting leg oil cylinder and the fourth supporting leg oil cylinder, and the two ends of the second long ship telescopic oil cylinder are respectively hinged to the lower end of the third supporting leg oil cylinder and the left end of the second long ship.

6. A static pile press according to claim 5, wherein The host platform further comprises a fifth outrigger cylinder, a sixth outrigger cylinder, a seventh outrigger cylinder and an eighth outrigger cylinder, the fifth and sixth outrigger cylinders are respectively installed on the front and rear ends of the left side of the platform frame, the first short ship is slidably connected with the lower ends of the fifth and sixth outrigger cylinders, the seventh and eighth outrigger cylinders are respectively installed on the front and rear ends of the right side of the platform frame, and the second short ship is slidably connected with the lower ends of the seventh and eighth outrigger cylinders.

7. The amplitude-variable static pile press according to claim 4, wherein The first long ship is provided with a gap in the middle of the rear side, and the gap is located below the pile press machine well.

8. A static pile press according to any one of claims 4 to 7, wherein The hydraulic pile pressing mechanism comprises an integrated gantry, a pile pressing cylinder and a pile clamping device, the integrated gantry is rotatably connected with the front end of the host platform through the sliding rotating pin shaft, the luffing cylinder comprises a first luffing cylinder and a second luffing cylinder, the lower ends of the first and second luffing cylinders are hingedly connected with the upper side of the front end of the host platform, the upper ends of the first and second luffing cylinders are respectively hingedly connected with the left and right sides of the integrated gantry, and the pile clamping device is vertically slidably connected with the integrated gantry through the pile pressing cylinder.

9. A static pile press according to claim 8, wherein The anchoring support device comprises an anchoring support, two pressing cylinders and a fixing seat fixed on the host platform, the middle part of the fixing seat is provided with a guide hole, the lower end of the anchoring support passes through the guide hole and is vertically slidably connected with the fixing seat, the two sides of the fixing seat are respectively provided with cylinder mounting holes, the two pressing cylinders are respectively installed on the two cylinder mounting holes, and the upper ends of the piston rods of the two pressing cylinders are respectively hingedly connected with the two sides of the upper end of the anchoring support.

10. The amplitude-variable static pile press according to claim 4, wherein Further comprising a control room, the control room is installed on the host platform and located between the hydraulic pile pressing mechanism and the hoisting mechanism. Further comprising a control room, the control room is installed on the host platform and located between the hydraulic pile pressing mechanism and the hoisting mechanism.

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