CN110735431A - hydrostatic pile press inclined pile construction method and dragon frame assembly - Google Patents
hydrostatic pile press inclined pile construction method and dragon frame assembly Download PDFInfo
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- CN110735431A CN110735431A CN201910555181.7A CN201910555181A CN110735431A CN 110735431 A CN110735431 A CN 110735431A CN 201910555181 A CN201910555181 A CN 201910555181A CN 110735431 A CN110735431 A CN 110735431A
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- 238000010276 construction Methods 0.000 title claims abstract description 95
- 230000002706 hydrostatic effect Effects 0.000 title description 11
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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Abstract
The invention discloses a construction method of an inclined pile of a hydraulic static pile press, which comprises the following steps of (1) arranging a dragon frame assembly on hydraulic static pile press equipment, (2) hoisting and fixing a precast pile in a pile clamping device assembly, (3) arranging a construction angle and a construction path of the precast pile, adjusting the inclination angle of the dragon frame assembly through a rotating shaft and a variable amplitude rotating oil cylinder on the dragon frame assembly to enable the precast pile on the pile clamping device assembly to reach a preset construction angle and the pile tip direction of the precast pile to be aligned with the pile position center, (4) pressing the precast pile into a foundation by a pile pressing oil cylinder, opening the pile clamping device assembly when a single pile pressing stroke is completed, and repeating the steps (2) and (4) until the precast pile is pressed to the designed depth.
Description
Technical Field
The invention relates to the technical field of hydraulic static pile presses, in particular to a construction method of inclined piles of hydraulic static pile presses and a dragon frame assembly.
Background
At present, a hydraulic pile machine or a gas-liquid linkage pile machine is adopted to construct a pile foundation like , the hydraulic pile machine is deeply welcomed by users due to the characteristics of low noise and small influence on the environment, the hydraulic pile machine comprises a construction platform, a crane arranged on the construction platform, a dragon frame, an operation and control chamber and a hydraulic pile pressing mechanism, and the hydraulic pile pressing mechanism is arranged on a dragon frame.
The Chinese patent application CN201711200885.X filed by the applicant of the invention discloses variable-amplitude hydraulic pile pressing devices, which comprise pile pressing oil cylinders, a dragon frame and a pile clamping device, wherein cylinder barrels of the pile pressing oil cylinders are fixed on the dragon frame, a radial telescopic pile clamping structure is arranged in the pile clamping device, two opposite side surfaces of the pile clamping device are respectively provided with a guide piece to be movably connected with a guide support on the inner side of the dragon frame, the bottom of the dragon frame is provided with a rotating base, the upper end of the rotating base is connected with the dragon frame in a pin shaft A or bolting mode, the lower end of the rotating base is movably connected with a supporting platform through a pin shaft B to form a rotating structure, the supporting platform is provided with a variable-amplitude oil cylinder, a cylinder body of the variable-amplitude oil cylinder is fixedly connected with the supporting platform, a piston rod of the variable-amplitude oil cylinder is connected with the upper part of the dragon frame to form a variable-amplitude rotating structure for driving the dragon frame to rotate around the pin shaft B, the dragon frame rotates around the pin shaft B to drive the pile pressing oil cylinders.
The variable-amplitude hydraulic pile pressing machine with the improved structure can solve the problems of construction difficulty, low construction efficiency, large environmental pollution, small construction range and the like in the construction of an inclined pile foundation in the prior art, improved variable-amplitude hydraulic pile pressing devices are provided, the inclined pile foundation can be directly hydraulically constructed in the aspect, in addition, a movable extended-range variable-amplitude hydraulic pile pressing structure can be formed in the aspect through sliding extended range, and the variable-amplitude hydraulic pile pressing machine has the characteristics and beneficial effects of convenience in construction, high construction efficiency, small environmental pollution, simple structure, construction, application range and the like.
In practical application, the applicant finds that the amplitude-variable hydraulic pile pressing device has the following defects:
1. the pile driver is characterized in that a dragon frame and a pile gripper are arranged at the front part of a supporting platform, the space for arranging a cylinder body of a luffing oil cylinder and a piston rod of the luffing oil cylinder on the supporting platform is limited, only a -grade oil cylinder has a luffing range of only 0 +/-15 DEG and short stroke, the inclination of a large inclination angle and a long stroke is difficult to realize, the application range is limited, and the pile driver is only suitable for pile pressing operation of a prefabricated support pile with a small luffing inclination angle and a short stroke, 2, the gravity center of the whole pile driver is also arranged at the front part of the supporting platform, the front part and the rear part of the supporting platform are not uniformly stressed in a pile pressing working state, the front part easily causes local sinking under heavy pressing, the whole stability and the pile driving precision of equipment are influenced, and 3, the gravity center of the pile driver is not easily kept at the center position of the equipment in the pile pressing working process due to the fact that the dragon frame and the pile gripper are arranged at the front part of the supporting platform (back to a crane and the side of a working face side), and the pile driver is not easily controlled by the whole pile driver or the whole pile driver in the pile driving speed (dynamic shifting.
Disclosure of Invention
The invention aims to provide construction methods for an inclined pile of a hydraulic static pile press, which aim at the defects of the prior art, redesign of a dragon frame assembly to solve the problems of the prior hydraulic static pile press equipment, and enable the gravity center of the equipment to be always kept in a safe range no matter in a non-use state or a use state by arranging the dragon frame assembly at the geometric center of the hydraulic static pile press equipment, so that the overall balance of the equipment can be better ensured, and the safety performance of the equipment can be ensured.
In order to achieve the purpose, the invention adopts the technical scheme that:
A construction method of an inclined pile of a hydrostatic pile press comprises the following steps:
(1) dragon frame assemblies are arranged on hydraulic static pile pressing equipment, the dragon frame assemblies are arranged at the geometric center of a supporting platform assembly on the hydraulic static pile pressing equipment, pile pressing oil cylinders are arranged on the pile pressing oil cylinders and are connected with pile gripper assemblies arranged on the dragon frame assemblies, and the pile gripper assemblies can do vertical linear motion along a preset route on the dragon frame by the extension and retraction of the pile pressing oil cylinders;
(2) the hydraulic static pile pressing equipment reaches a construction position, and the precast pile is lifted and placed in a pile clamping device assembly on a dragon frame assembly;
(3) the angle monitoring system of the dragon frame assembly is used for measuring and setting the construction angle and the construction path of the precast pile, the dragon frame assembly is used for setting the pile pressing angle of the precast pile within the inclination angle range of +/-30 degrees and is fixed, and the inclination angle of the dragon frame assembly is adjusted through a rotating shaft and a variable amplitude rotating oil cylinder on the dragon frame assembly, so that the precast pile on the pile gripper assembly reaches the preset construction angle and the pile tip direction of the precast pile is aligned with the pile position center;
(4) starting the amplitude-variable hydraulic static pile press, driving the pile clamping assembly to press the precast pile into the foundation through the pile pressing oil cylinder fixed on the dragon frame assembly, opening the pile clamping assembly when the pile pressing oil cylinder completes a single pile pressing stroke, releasing the fixation between the pile clamping assembly and the precast pile, lifting the pile clamping assembly to the initial position, repeating the actions of clamping and fixing and pressing the pile until the precast pile is pressed to the designed depth, and finishing the single pile pressing construction.
The method is characterized in that improvement is carried out, an angle monitoring system is arranged on a dragon frame assembly, an amplitude-variable type hydraulic static pile press machine starts an angle monitoring system when a pile pressing oil cylinder is started to perform pile pressing operation, the angle monitoring system immediately gives an alarm to remind when monitoring that the pile pressing angle or the pile pressing path of a precast pile deviates, the pile pressing oil cylinder is closed to stop pile pressing when the preset range is exceeded, a control processor starts a rotating shaft and the amplitude-variable rotating oil cylinder on the dragon frame assembly to adjust the pile pressing construction angle and the construction path of the precast pile and enable the pile pressing construction angle and the construction path to return to the preset pile pressing construction angle and construction path, and when the angle monitoring system monitors that the precast pile returns to the preset pile pressing angle or the pile pressing path again, the control processor restarts the pile pressing oil cylinder to perform pile pressing and returns to an automatic monitoring state.
Dragon frame assembly for implementing the method comprises a dragon frame body, an angle monitoring system, a pile pressing oil cylinder and a pile clamping device assembly which are arranged on a dragon frame body, wherein a rotating shaft and a variable amplitude rotating oil cylinder are further arranged on the outer side of the dragon frame body, the angle monitoring system is electrically connected with a control processor of the dragon frame assembly, the pile pressing oil cylinder is arranged at the upper end of the dragon frame body and is connected with the top end of the pile clamping device assembly through a piston rod and a plug pin, a radial telescopic pile clamping structure is arranged in the pile clamping device assembly, two opposite side surfaces of the pile clamping device assembly are respectively provided with a guide piece, and the guide pieces are movably connected with guide supports on the inner side of the dragon frame body.
According to the improvement of steps, the pile pressing oil cylinder comprises two main pressure oil cylinders and two auxiliary pressure oil cylinders, cylinder barrels of the main pressure oil cylinders and the auxiliary pressure oil cylinders are fixed at the upper end of the dragon frame body, the two main pressure oil cylinders are connected with the top end of the pile clamping device assembly through piston rods and pin shafts respectively, the auxiliary pressure oil cylinders form an auxiliary pressure increasing structure, and the main pressure oil cylinders and the auxiliary pressure oil cylinders can be combined for use according to the requirement of the pile pressing tonnage.
As a further improvement of , the dragon frame body comprises an upper dragon 0 frame and a lower dragon 1 frame, the upper dragon frame comprises a -th upper dragon frame and a second upper dragon frame which are symmetrical on the left and right sides, and the lower dragon frame comprises a -th lower dragon frame and a second lower dragon frame which are symmetrical on the left and right sides.
According to the improvement of , the oil cylinder connecting shaft holes for passing through the oil cylinder connecting shaft are formed in the upper dragon frame and the second upper dragon frame, oil cylinder connecting shaft sleeves matched with the oil cylinder connecting shaft are arranged outside the oil cylinder connecting shaft holes, the oil cylinder connecting shaft penetrates through the oil cylinder connecting shaft sleeves and then is arranged in the oil cylinder connecting shaft holes, and a retainer ring, a flat washer, a spring washer and a bolt for fixing the oil cylinder connecting shaft are further sequentially arranged at the end outwards of the oil cylinder connecting shaft.
The improvement of the invention further comprises a perforated bolt, wherein the oil cylinder connecting shaft and the oil cylinder connecting shaft sleeve are both provided with perforated bolt screw holes for passing through the perforated bolt, the perforated bolt is also provided with a pin hole for passing through a cotter pin, the perforated bolt passes through the perforated bolt screw holes, the cotter pin is arranged in the pin hole, and the lower end of the perforated bolt is also provided with a slotted nut for fixing.
As an improvement of the invention in step, male connectors are arranged at the downward ends of the upper dragon frame, female connectors matched with the male connectors are arranged at the upward ends of the lower dragon 0 frame, dragon frame connecting shaft holes used for connecting shafts through a dragon frame are arranged on the male connectors and the female connectors, snap-gauge plates are further arranged on the dragon frame connecting shafts, screw holes used for passing screws are arranged on the lower dragon frame and the snap-gauge plates, and a dragon frame pin shaft and the snap-gauge plates are mutually fixed through screws matched with the screw holes.
The improved structure comprises a connecting shaft, wherein connecting shaft nut ports for passing through the connecting shaft are arranged on the left side and the right side of an upper dragon frame, connecting shaft nut ports for passing through the connecting shaft are also arranged on the left side and the right side of the lower end of a lower dragon frame, fixed shaft holes for passing through the fixed shaft are arranged on the two sides of the connecting shaft and the connecting shaft nut ports, the fixed shaft holes on the two sides of the connecting shaft are respectively matched with the fixed shaft holes on the connecting shaft nut ports on a upper dragon frame and a second upper dragon frame or a lower dragon frame and a second lower dragon frame, the fixed shaft respectively penetrates through the shaft holes and the fixed shaft on the connecting shaft nut ports, and elastic check rings are further arranged on the outer side of the fixed shaft.
Compared with the prior art have the advantages that:
1. the construction method of the inclined pile of the hydraulic static pile press and the dragon frame assembly are characterized in that a dragon frame assembly is redesigned aiming at the problems of the existing hydraulic static pile press equipment, the dragon frame assembly is arranged at the geometric center of the hydraulic static pile press equipment, so that the gravity center of the equipment is always kept in a safe range no matter in a non-use state or a use state, the integral balance of the equipment can be better ensured, the safety performance of the equipment is ensured, the construction angle and the path of a precast pile on the dragon frame assembly are adjusted through a rotating shaft on the dragon frame assembly and a variable amplitude rotating oil cylinder, and the hydraulic static pile press equipment capable of constructing the inclined pile of +/-30 degrees is provided.
2. The invention relates to a construction method of an inclined pile of a hydraulic static pile press and a dragon frame assembly, wherein a pile clamping device assembly is arranged on a dragon frame assembly, a dragon frame assembly is arranged in the middle of a supporting platform, the space of a cylinder body of a variable amplitude oil cylinder and a piston rod of the variable amplitude oil cylinder on the supporting platform is greatly expanded, a secondary oil cylinder is arranged, the variable amplitude range of the two-stage oil cylinder is expanded to +/-30 degrees, the stroke is also synchronously increased, the inclination of a large inclination angle of +/-20 degrees or more and a long stroke can be realized, the application range of the two-stage oil cylinder is expanded, and the two-stage oil cylinder is suitable for the pile pressing operation of.
3. According to the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly, under the pile press working state, the front part and the rear part of the supporting platform are uniformly stressed, so that the front part is prevented from locally sinking under heavy pressure, the integral stability and the pile driving precision of equipment are not influenced, and the construction safety is also improved.
4. The construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly can realize the construction of the vertical or inclined support pile within the depth range of 5m-10m without horizontal support by the middle-arranged dragon frame assembly, can be applied to the earth excavation in a foundation pit without horizontal support and the construction of an underground structure of a building, can save the construction period of the construction and the demolition without horizontal support required in the prior construction technology, and can obviously shorten the construction period.
5. The invention relates to a construction method of an inclined pile of a hydraulic static pile press and a dragon frame assembly, wherein an angle monitoring system continuously monitors a pile pressing angle and a pile pressing path in the pile pressing construction process of a precast pile, when the pile pressing angle or the pile pressing path of the precast pile is monitored to deviate, an amplitude-variable hydraulic static pile pressing oil cylinder is immediately closed to stop pile pressing, the dragon frame assembly is adjusted to return to a preset pile pressing construction angle and a preset pile pressing path, when the angle monitoring system monitors that the precast pile returns to the preset pile pressing angle or the pile pressing path again, the amplitude-variable hydraulic static pile pressing oil cylinder is restarted to press the pile and returns to an automatic monitoring state, the pile pressing accuracy is effectively improved, the stability of the inclination in the pile pressing process can be ensured, the construction method is suitable for various inclined piles, the pile pressing efficiency is high, the stability of the inclination angle of the pile pressing is good, and the construction error of the continuous pile pressing.
6. According to the construction method of the inclined pile of the hydraulic static pile press and the dragon frame assembly, the prefabricated support pile is adopted to carry out support construction of the unsupported prefabricated inclined pile of the foundation pit, industrial construction of the prefabricated support pile can be realized, and the underground pipe gallery in the horizontally-unsupported foundation pit can be assembled by adopting the prefabricated pipe gallery, so that industrial construction of the underground pipe gallery is realized.
To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural view of a hydraulic static pile press employing a dragon frame assembly of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the assembly structure of the dragon rack assembly of the present invention;
in the attached drawing, the pile clamping device comprises a main pressure oil cylinder 1, an auxiliary pressure oil cylinder 2, a perforated bolt 3, a perforated bolt 4, a check ring 5, a flat washer 6, a bolt 7, a spring washer 8, an oil cylinder connecting shaft 9, an upper screw frame, a connecting shaft 10, a screw frame, a clamping plate 11, a screw 12, a screw 13, a lower screw frame, a fixing shaft 14, a flexible check ring 15, an elastic check ring 16, a connecting shaft 17, a slotted nut 18, a split pin 19, a screw frame assembly 20 and a pile clamping device assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
Referring to the attached drawings, the construction method of the inclined piles of the hydrostatic pile press provided by the embodiment comprises the following steps:
(1) dragon frame assembly 19 is arranged on hydraulic static pile pressing equipment, the dragon frame assembly 19 is arranged at the geometric center position of a supporting platform assembly on the hydraulic static pile pressing equipment, a pile pressing oil cylinder is arranged on the dragon frame assembly, the pile pressing oil cylinder is connected with a pile clamping device assembly 20 arranged on the dragon frame assembly 19, and the pile clamping device assembly 20 can do vertical linear motion along a preset route on the dragon frame through the extension and retraction of the pile pressing oil cylinder;
(2) the hydraulic static pile pressing equipment reaches the construction position, the precast pile is lifted and placed in a pile clamping device assembly 20 on a dragon frame assembly 19, the pile clamping device assembly 20 is started, and the precast pile is fixed on the pile clamping device assembly 20 by the pile clamping device assembly 20;
(3) the construction angle and the construction path of the precast pile are measured and set through an angle monitoring system of a dragon frame assembly 19, the pile pressing angle of the precast pile is set and fixed in the inclination angle range of +/-30 degrees through a dragon frame assembly 19, the inclination angle of the dragon frame assembly 19 is adjusted through a rotating shaft and a variable amplitude rotating oil cylinder on the dragon frame assembly 19, so that the precast pile on a pile gripper assembly 20 reaches a preset construction angle, and the pile tip direction of the precast pile is aligned with the pile position center;
(4) starting the amplitude-variable hydraulic static pile press, driving the pile clamping assembly 20 to press the precast pile into the foundation through the pile pressing oil cylinder fixed on the dragon frame assembly 19, opening the pile clamping assembly 20 when the pile pressing oil cylinder completes a single pile pressing stroke, releasing the fixation between the pile clamping assembly 20 and the precast pile, lifting the pile clamping assembly 20 to an initial position, repeating the actions of clamping and fixing and pressing the precast pile to a designed depth, and finishing the single pile pressing construction.
According to the construction method of the inclined pile of the hydraulic static pile press in the embodiment, the angle monitoring system is arranged on the dragon frame assembly 19, the variable-amplitude hydraulic static pile press starts the pile pressing oil cylinder to perform pile pressing operation and simultaneously starts the angle monitoring system, when the angle monitoring system monitors that the pile pressing angle or the pile pressing path of the precast pile deviates, an alarm prompt is immediately sent, when the preset range is exceeded, the pile pressing oil cylinder is closed to stop pile pressing, the control processor starts the rotating shaft and the variable-amplitude rotating oil cylinder on the dragon frame assembly 19 to adjust the pile pressing construction angle and the construction path of the precast pile and enable the pile pressing construction angle and the construction path to return to the preset pile pressing construction angle and construction path, when the angle monitoring system monitors that the precast pile returns to the preset pile pressing angle or the pile pressing path again, the pile pressing oil cylinder is restarted through the control processor to perform pile pressing, and the pile pressing is returned to.
Dragon frame assembly for implementing the method, including a dragon frame body and an angle monitoring system, a pile pressing oil cylinder and a pile gripper assembly 20 arranged on the dragon frame body, wherein the outer side of the dragon frame body 19 is also provided with a rotating shaft and a variable amplitude rotating oil cylinder, the angle monitoring system is electrically connected with a control processor of the dragon frame assembly 19, the pile pressing oil cylinder is arranged at the upper end of the dragon frame body and is connected with the top end of the pile gripper assembly 20 through a piston rod and a bolt, the pile gripper assembly 20 is provided with a radial telescopic pile gripper structure, two opposite side surfaces of the pile gripper assembly 20 are respectively provided with a guide member, and the guide members are movably connected with guide supports at the inner side of the dragon frame body.
According to the dragon frame assembly, the pile pressing oil cylinder comprises two main oil cylinders 1 and two auxiliary oil cylinders 2, the cylinder barrels of the main oil cylinders 1 and the auxiliary oil cylinders 2 are fixed at the upper end of a dragon frame body, the two main oil cylinders 1 are connected with the top end of a pile clamping device assembly 20 through piston rods and pin shafts respectively, the auxiliary oil cylinders 2 form an auxiliary pressurizing structure, and the main oil cylinders and the auxiliary oil cylinders can be combined according to the requirement of pile pressing tonnage.
According to the dragon frame assembly in the embodiment, the dragon frame body comprises an upper dragon 0 frame 9 and a lower dragon 1 frame 13, the upper dragon frame 9 comprises a -th upper dragon frame and a second upper dragon frame which are symmetrical on the left and right sides, and the lower dragon frame 13 comprises a -th lower dragon frame and a second lower dragon frame which are symmetrical on the left and right sides.
According to the dragon frame assembly in the embodiment, the upper dragon frame and the second upper dragon frame are respectively provided with an oil cylinder connecting shaft hole for passing through an oil cylinder connecting shaft 8, an oil cylinder connecting shaft sleeve matched with the oil cylinder connecting shaft 8 is arranged outside the oil cylinder connecting shaft hole, the oil cylinder connecting shaft 8 penetrates through the oil cylinder connecting shaft sleeve and then is arranged in the oil cylinder connecting shaft hole, and the outward end of the oil cylinder connecting shaft 8 is further sequentially provided with a retaining ring 4, a flat washer 5, a spring washer 7 and a bolt 6 for fixing the oil cylinder connecting shaft.
The dragon frame assembly in this embodiment still includes the foraminiferous bolt, all be provided with the trompil bolt screw that is used for passing through the trompil bolt on hydro-cylinder connecting axle 8 and the hydro-cylinder connecting axle sleeve, still be provided with the pinhole that is used for passing through split pin 18 on the foraminiferous bolt, the foraminiferous bolt passes the trompil bolt screw, split pin 18 set up in the pinhole, the lower extreme of foraminiferous bolt still is provided with the fluting nut that is used for fixing.
Dragon frame assembly in this embodiment, the downward end of last dragon frame 9 all is provided with the male joint, the upwards end of lower dragon 0 frame 13 all be provided with male joint assorted female joint, the male joint with all be provided with the dragon frame connection shaft hole that is used for putting up connecting axle 10 through dragon on the female joint, still be provided with cardboard 11 on dragon frame connecting axle 10, be provided with the screw that is used for through screw 12 on lower dragon frame 13 and the cardboard 11, dragon frame round pin axle with cardboard 11 through with screw assorted screw 12 reciprocal anchorage.
Dragon frame assembly in this embodiment still includes connecting axle 16, it is used for the connecting axle mother interface through connecting axle 16 all to be provided with on the left and right sides of last dragon frame 9, also all be provided with the connecting axle mother interface that is used for through connecting axle 16 on the left and right sides of the lower extreme of lower dragon frame 13, all be provided with the fixed axle shaft hole that is used for through the fixed axle on the both sides of connecting axle 16 and the connecting axle mother interface, the fixed axle shaft hole of the both sides of connecting axle 16 respectively with the go up dragon frame and second go up dragon frame or down dragon frame and the second go down the dragon frame on the connecting axle mother interface on fixed axle shaft hole phase-match, the fixed axle passes the connecting axle 16 respectively and connects the axle hole on the spindle mother interface, the fixed axle outside still is provided with circlip 15.
The design key points of the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly in the embodiment are as follows:
1. according to the construction method of the inclined pile of the hydraulic static pile press and the dragon frame assembly in the embodiment, the dragon frame assembly is redesigned aiming at the problems of the existing hydraulic static pile press equipment, the dragon frame assembly is arranged at the geometric center of the hydraulic static pile press equipment, so that the gravity center of the equipment is always kept in a safe range no matter in a non-use state or a use state, the integral balance of the equipment can be better ensured, the safety performance of the equipment is ensured, the construction angle and the path of the precast pile on the dragon frame assembly are adjusted through a rotating shaft and a variable amplitude rotating oil cylinder on the dragon frame assembly, and the hydraulic static pile press equipment capable of constructing the inclined pile of +/-30 degrees is provided.
2. In the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly in the embodiment, the pile clamping device assembly is arranged on the dragon frame assembly, the dragon frame assembly is arranged in the middle of the supporting platform, the space of the cylinder body of the variable-amplitude oil cylinder and the piston rod of the variable-amplitude oil cylinder on the supporting platform is greatly expanded, the two-stage oil cylinder is arranged, the variable-amplitude range of the two-stage oil cylinder is expanded to +/-30 degrees, the stroke is also synchronously increased, the inclination of large inclination angles of +/-20 degrees and above and long stroke can be realized, the application range of the two-stage oil cylinder is expanded, and the two-stage oil cylinder is suitable for pile pressing operation of the.
3. According to the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly, under the pile press working state, the front part and the rear part of the supporting platform are uniformly stressed, so that the front part is prevented from locally sinking under heavy pressure, the integral stability and the pile driving precision of equipment are not influenced, and the construction safety is improved.
4. According to the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly, through the middle-arranged dragon frame assembly, the construction of the vertical or inclined support pile can be realized within the depth range of 5m-10m, the construction method can be applied to earth excavation in a foundation pit without horizontal support and construction of an underground structure of a building, the construction period of the construction and the dismantling without horizontal support required in the prior construction technology can be saved, and the construction period can be obviously shortened.
5. According to the construction method of the inclined pile of the hydraulic static pile press and the dragon frame assembly in the embodiment, in the construction process of pile pressing of the precast pile, the angle monitoring system continuously monitors the pile pressing angle and the pile pressing path, when the deviation of the pile pressing angle or the pile pressing path of the precast pile is monitored, the amplitude-variable hydraulic static pile pressing oil cylinder is immediately closed to stop pile pressing, the dragon frame assembly is adjusted to return to the preset pile pressing construction angle and the preset pile pressing path, when the angle monitoring system monitors that the precast pile returns to the preset pile pressing angle or the preset pile pressing path again, the amplitude-variable hydraulic static pile pressing oil cylinder is restarted to press the pile, the pile pressing state is returned, the pile pressing accuracy is effectively improved, the stability of the inclination in the pile pressing process can be guaranteed, the construction method is suitable for various inclined piles, the pile pressing efficiency is high, the stability of the inclination angle of the pile pressing is good, and the continuous pile pressing construction.
6. According to the construction method of the inclined pile of the hydrostatic pile press and the dragon frame assembly, the prefabricated support pile is adopted for supporting construction of the unsupported prefabricated inclined pile of the foundation pit, industrial construction of the prefabricated support pile can be achieved, and the underground pipe gallery in the horizontally-unsupported foundation pit can be assembled through the prefabricated pipe gallery, so that industrial construction of the underground pipe gallery is achieved.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (9)
- The construction method of the inclined pile of the hydraulic static pile pressing machines is characterized by comprising the following steps of:(1) dragon frame assemblies are arranged on hydraulic static pile pressing equipment, the dragon frame assemblies are arranged at the geometric center of a supporting platform assembly on the hydraulic static pile pressing equipment, pile pressing oil cylinders are arranged on the pile pressing oil cylinders and are connected with pile gripper assemblies arranged on the dragon frame assemblies, and the pile gripper assemblies can do vertical linear motion along a preset route on the dragon frame by the extension and retraction of the pile pressing oil cylinders;(2) the hydraulic static pile pressing equipment reaches a construction position, and the precast pile is lifted and placed in a pile clamping device assembly on a dragon frame assembly;(3) the angle monitoring system of the dragon frame assembly is used for measuring and setting the construction angle and the construction path of the precast pile, the dragon frame assembly is used for setting the pile pressing angle of the precast pile within the inclination angle range of +/-30 degrees and is fixed, and the inclination angle of the dragon frame assembly is adjusted through a rotating shaft and a variable amplitude rotating oil cylinder on the dragon frame assembly, so that the precast pile on the pile gripper assembly reaches the preset construction angle and the pile tip direction of the precast pile is aligned with the pile position center;(4) starting the amplitude-variable hydraulic static pile press, driving the pile clamping assembly to press the precast pile into the foundation through the pile pressing oil cylinder fixed on the dragon frame assembly, opening the pile clamping assembly when the pile pressing oil cylinder completes a single pile pressing stroke, releasing the fixation between the pile clamping assembly and the precast pile, lifting the pile clamping assembly to the initial position, repeating the actions of clamping and fixing and pressing the pile until the precast pile is pressed to the designed depth, and finishing the single pile pressing construction.
- 2. The construction method of the inclined pile of the hydraulic static pile driver according to claim 1, wherein an angle monitoring system is arranged on a dragon frame assembly, the luffing hydraulic static pile driver starts a pile pressing oil cylinder to perform pile pressing operation and simultaneously starts the angle monitoring system, when the angle monitoring system monitors that the pile pressing angle or the pile pressing path of the precast pile deviates, an alarm is immediately sent out to remind, when the pile pressing angle or the pile pressing path of the precast pile exceeds a preset range, the pile pressing oil cylinder is closed to stop pile pressing, a control processor starts a rotating shaft and a luffing rotating oil cylinder on a dragon frame assembly to adjust the pile pressing construction angle and the construction path of the precast pile and enable the pile pressing construction angle and the construction path to return to the preset pile pressing construction angle and construction path, and when the angle monitoring system monitors that the precast pile returns to the preset pile pressing angle or pile pressing path again, the control processor restarts the pile pressing oil cylinder to perform pile pressing and returns to an.
- 3, Dragon frame assembly for implementing the method of claims 1-2, comprising a dragon frame body, an angle monitoring system, a pile pressing oil cylinder and a pile gripper assembly arranged on the dragon frame body, wherein the outer side of the dragon frame body is further provided with a rotating shaft and a variable amplitude rotating oil cylinder, the angle monitoring system is electrically connected with a control processor of the dragon frame assembly, the pile pressing oil cylinder is arranged at the upper end of the dragon frame body and is connected with the top end of the pile gripper assembly through a piston rod and a plug pin, the pile gripper assembly is internally provided with a radial telescopic pile gripper structure, two opposite side surfaces of the pile gripper assembly are respectively provided with a guide member, and the guide members are movably connected with guide supports at the inner side of the dragon frame body.
- 4. The dragon rack assembly according to claim 3, wherein the pile pressing cylinders comprise two main pressure cylinders and two auxiliary pressure cylinders, the cylinders of the main pressure cylinders and the auxiliary pressure cylinders are fixed to the upper end of the dragon rack body, the two main pressure cylinders are connected with the top end of the pile clamping device assembly through piston rods and pin shafts respectively, the auxiliary pressure cylinders form an auxiliary pressurizing structure, and the main pressure cylinders and the auxiliary pressure cylinders can be combined according to the requirement of pile pressing tonnage.
- 5. The dragon rack assembly of claim 3, wherein the dragon rack body comprises an upper dragon 0 rack and a lower dragon 1 rack, the upper dragon rack comprises a left-right symmetrical -th upper dragon rack and a second upper dragon rack, and the lower dragon rack comprises a left-right symmetrical -th lower dragon rack and a second lower dragon rack.
- 6. The dragon rack assembly of claim 5, wherein the dragon rack and the second dragon rack are each provided with an oil cylinder connecting shaft hole for passing an oil cylinder connecting shaft, the outside of each oil cylinder connecting shaft hole is provided with an oil cylinder connecting shaft sleeve matched with the oil cylinder connecting shaft, the oil cylinder connecting shaft passes through the oil cylinder connecting shaft sleeve and is arranged in the oil cylinder connecting shaft hole, and the outward end of the oil cylinder connecting shaft is further provided with a retaining ring, a flat washer, a spring washer and a bolt for fixing the oil cylinder connecting shaft in sequence.
- 7. The dragon rack assembly of claim 6, further comprising a hole bolt, wherein the cylinder connecting shaft and the cylinder connecting shaft sleeve are both provided with a hole bolt screw hole for passing through the hole bolt, the hole bolt is further provided with a pin hole for passing through a cotter pin, the hole bolt passes through the hole bolt screw hole, the cotter pin is arranged in the pin hole, and the lower end of the hole bolt is further provided with a slotted nut for fixing.
- 8. The dragon rack assembly of claim 5, wherein a male connector is disposed at each of downward ends of the upper dragon rack, a female connector matched with the male connector is disposed at each of upward ends of the lower dragon 0 rack, a dragon rack connecting shaft hole for connecting a shaft through a dragon rack is disposed on each of the male connector and the female connector, a clamping plate is further disposed on the dragon rack connecting shaft, screw holes for passing screws are disposed on the lower dragon rack and the clamping plate, and a dragon rack pin shaft and the clamping plate are mutually fixed through screws matched with the screw holes.
- 9. The dragon rack assembly of claim 5, further comprising a connecting shaft, wherein the left and right sides of the upper dragon rack are provided with connecting axle nut ports for passing through the connecting shaft, the left and right sides of the lower end of the lower dragon rack are also provided with connecting axle nut ports for passing through the connecting shaft, both sides of the connecting shaft and the connecting axle nut ports are provided with fixed axle holes for passing through fixed axles, the fixed axle holes of both sides of the connecting shaft are respectively matched with the fixed axle holes of the upper dragon rack and the second upper dragon rack or the fixed axle holes of the lower dragon rack and the second lower dragon rack on the connecting axle nut ports, the fixed axles pass through the connecting shaft and the fixed axle holes on the connecting axle nut ports, and the fixed axle outside of the connecting axle is further provided with elastic collars.
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| CN201910555181.7A CN110735431A (en) | 2019-06-25 | 2019-06-25 | hydrostatic pile press inclined pile construction method and dragon frame assembly |
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| CN201910555181.7A CN110735431A (en) | 2019-06-25 | 2019-06-25 | hydrostatic pile press inclined pile construction method and dragon frame assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703846A (en) * | 2022-05-24 | 2022-07-05 | 广东力源液压机械有限公司 | Portal frame amplitude variation control method and system for engineering machinery |
| CN120250641A (en) * | 2025-06-05 | 2025-07-04 | 中铁十七局集团第二工程有限公司 | A bridge pier cofferdam construction device |
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| JP2013142271A (en) * | 2012-01-12 | 2013-07-22 | Penta Ocean Construction Co Ltd | Steel pipe sheet pile press-in method and press-in device |
| CN107938671A (en) * | 2017-12-27 | 2018-04-20 | 广东力源液压机械有限公司 | A kind of improved amplitude variation type hydraulic pressure pile pressing device |
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- 2019-06-25 CN CN201910555181.7A patent/CN110735431A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013142271A (en) * | 2012-01-12 | 2013-07-22 | Penta Ocean Construction Co Ltd | Steel pipe sheet pile press-in method and press-in device |
| CN107938671A (en) * | 2017-12-27 | 2018-04-20 | 广东力源液压机械有限公司 | A kind of improved amplitude variation type hydraulic pressure pile pressing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703846A (en) * | 2022-05-24 | 2022-07-05 | 广东力源液压机械有限公司 | Portal frame amplitude variation control method and system for engineering machinery |
| CN120250641A (en) * | 2025-06-05 | 2025-07-04 | 中铁十七局集团第二工程有限公司 | A bridge pier cofferdam construction device |
| CN120250641B (en) * | 2025-06-05 | 2025-09-05 | 中铁十七局集团第二工程有限公司 | Bridge pier column cofferdam construction device |
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