CN112878330B - Precast pile sinking equipment and construction method thereof - Google Patents
Precast pile sinking equipment and construction method thereof Download PDFInfo
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- CN112878330B CN112878330B CN202110331084.7A CN202110331084A CN112878330B CN 112878330 B CN112878330 B CN 112878330B CN 202110331084 A CN202110331084 A CN 202110331084A CN 112878330 B CN112878330 B CN 112878330B
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- 238000010276 construction Methods 0.000 title abstract description 52
- 238000005553 drilling Methods 0.000 claims abstract description 189
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004904 shortening Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 24
- 239000004568 cement Substances 0.000 description 11
- 239000002689 soil Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses pile sinking equipment for precast piles and a construction method thereof, wherein the pile sinking equipment comprises a movable equipment platform, a pile planting device is arranged in the center of the equipment platform, and a lifting device and a drilling frame base are arranged on the equipment platform; a drilling frame platform is arranged on the drilling frame base, a main mast is hinged and erected on the drilling frame platform, and two drilling machine hosts for driving a drill rod to rotate are arranged on the main mast; the drilling frame platform is also provided with a winch which is connected with the main machine of the drilling machine through a steel wire rope and used for driving the main machine of the drilling machine to move up and down along the guide of the main mast and a distribution box used for distributing power to all power utilization units on the equipment; the main mast is hinged with two main mast supports. The construction method comprises eight process steps. The invention has the advantages of less construction equipment, small occupied area, high construction efficiency and reliable process, and can meet the process requirements of drilling and pile planting.
Description
Technical Field
The invention relates to the technical field of pile foundation construction, in particular to pile sinking equipment for precast piles and a construction method thereof.
Background
The existing precast pile planting technology is provided with two sets of large-scale construction equipment, a pile frame suspension drilling machine forms a pile machine system, drilling, bottom expanding and grouting are carried out, and pile planting is carried out by one equipment. The current popular two-medium construction process for the equipment in the market comprises the following construction processes:
The first process comprises the following steps: the main mast of the pile frame suspension drilling machine is relatively low, the main mast is suspended for 1 drilling machine device, the drilling machine is used for drilling, and when the drilling depth is greater than the length of a drill rod, the drill rod needs to be spliced and disassembled. Because the main mast is low, the depth of each drilling hole is limited, when the drilling hole depth is deeper, the times of splicing and dismantling the drilling rod are more, the splicing and dismantling processes are complex each time, and the construction efficiency is low. When drilling, bottom expanding and grouting are completed, the pile machine system is required to be removed, the pile hanging equipment is moved to the vicinity of the pile hole, and 2 or more precast piles are hung and spliced to carry out pile planting. After the pile is implanted, the pile is required to be temporarily fixed, the hoisting equipment is removed, the pile implantation system is moved to the vicinity of the pile hole again, the pile is conveyed to the position of the pile top elevation below the ground by adopting the drilling equipment for pile conveying operation, and the pile implantation is completed.
The operation mode is complex in splicing and dismantling of the drill rods, the pile machine system is in a stagnation state in the pile planting process of the hoisting equipment, the construction efficiency of the pile machine system is not fully exerted, the equipment utilization rate is low, and the construction efficiency is low.
And a second process: the main mast of the pile frame suspension drilling machine is higher, the main mast is suspended for 2 drilling machine equipment, each drilling machine equipment can be provided with a drill rod in advance, the pre-spliced drill rod is longer due to the fact that the main mast is higher, and the total length of the drill rods suspended by the 2 drilling machines can meet the requirement of drilling depth. The time to splice and remove the drill pipe during drilling is greatly reduced. After the pile driver system finishes drilling, the pile driver system needs to be removed, and pile planting equipment is moved to the vicinity of the pile hole to perform pile planting of a single pile.
The two processes are divided into drilling and pile planting, two sets of large-scale equipment are adopted to perform drilling and pile planting operations respectively, more equipment is needed, the occupied area is large, and the construction efficiency is low.
Disclosure of Invention
The invention aims at solving the technical problems of the prior art, and provides precast pile sinking equipment and a construction method thereof, wherein the precast pile sinking equipment has the advantages of less construction equipment, small occupied area, high construction efficiency and reliable construction quality.
The technical scheme adopted for solving the technical problems is as follows:
A pile sinking device for precast piles comprises a movable device platform, a pile planting device for planting piles is arranged in the center of the device platform, a hoisting device capable of rotating 360 degrees and used for hoisting precast piles is arranged on one side of the pile planting device on the device platform, and a drilling frame base is fixedly arranged on the other side of the pile planting device on the device platform; a drilling frame platform capable of rotating 360 degrees is arranged on the drilling frame base, a main mast is hinged and erected on the drilling frame platform, and two drilling machine hosts for driving a drill rod to rotate are circumferentially arranged on the main mast at 45 degrees; the drilling frame platform is also provided with a winch which is connected with the main machine of the drilling machine through a steel wire rope and used for driving the main machine of the drilling machine to move up and down along the guide of the main mast and a distribution box used for distributing power to all power utilization units on the equipment; the main mast is hinged with two main mast supports for supporting the main mast and capable of adjusting the perpendicularity of the main mast by extending or shortening.
In order to optimize the technical scheme, the specific measures adopted further comprise:
The equipment platform comprises a platform main board with a rectangular structure and four walking boats which are arranged on the bottom surface of the platform main board and have a walking function; the four traveling ships comprise two traveling long ships correspondingly arranged at two short sides of the bottom surface of the platform main board and two traveling short ships correspondingly arranged at the centers of the two long sides of the bottom surface of the platform main board; the pile planting device, the lifting device and the drilling frame base are all arranged on a platform main board, and two balancing weights for balancing are fixedly arranged on one side of the platform main board, on which the lifting device is arranged.
The square pile planting hole for drilling and pile planting is formed in the center of the platform main board, and the pile planting device comprises two pile planting frames arranged on the left side and the right side of the pile planting hole, a pile clamping oil cylinder arranged on the two pile planting frames and used for clamping precast piles and a pile planting oil cylinder used for pile planting.
The lifting device comprises a lifting operation table with a turntable at the bottom and a telescopic boom arranged on the lifting operation table, wherein a lifting hook for lifting the precast pile is arranged on the telescopic boom; the lifting operation platform is arranged on one side, close to one short side, of the platform main board.
The drilling frame platform comprises a drilling platform and a drilling frame turntable which is arranged below the drilling platform and used for driving the drilling platform to rotate; the bottom surface of the drilling frame turntable is fixedly arranged on the drilling frame base; the main mast, the distribution box and the windlass are all arranged on the drilling platform.
The horizontal height of the bottom surface of the drilling platform is higher than the highest point of the pile planting device; the upper end hinge of main mast support is at the length department from main mast top quarter, and the lower extreme of main mast support is connected with flexible hydro-cylinder, and this flexible hydro-cylinder is installed on drilling platform.
Two guide sliding rails extending along the height direction of the main mast are formed on the main mast, and a sliding block matched with the guide sliding rails of the main mast in a sliding guide manner is installed on the main machine of the drilling machine.
One of the two main drilling machine machines is a first main drilling machine, the other of the two main drilling machine machines is a second main drilling machine, and correspondingly, the winch comprises a first winch which drives the first main drilling machine to move up and down through a steel wire rope and a second winch which drives the second main drilling machine to move up and down through the steel wire rope; the drill rod is a hollow drill rod with stirring blades at intervals on the peripheral surface, and an expansion wing drill bit with a bottom expansion function is assembled at the bottom end of the drill rod arranged on the first drilling machine main machine.
The invention also provides a construction method of the precast pile sinking equipment, which comprises the following steps:
1) The method comprises the steps of walking an equipment platform to a piling position by using a walking ship, enabling the center of a square pile planting hole to be aligned to the center of the piling position, supporting and adjusting the perpendicularity of a main mast by using the main mast, driving a first drill rod provided with an expansion wing drill bit to rotate by using a first drill machine host, controlling the first drill machine host to stably slide downwards along the main mast by using a first winch, drilling the first drill rod into a soil body, and injecting water or mixed liquid with an additive into the drill hole by using the first drill rod and an internal pipeline in the expansion wing drill bit according to geological conditions in the process of drilling the first drill rod into the soil body;
2) Stopping drilling when the first section of drill rod drills into the soil body and the top end of the first section of drill rod is 0.5m to 1m away from the platform main board, dismantling the connection between the first drilling machine host machine and the first section of drill rod, and then pulling the first drilling machine host machine to slide upwards along the main mast through the first winch so that the first drilling machine host machine is separated from the first section of drill rod;
3) The drilling frame platform is started to rotate for 45 degrees, the second drilling machine host drives the second section of drill rod to rotate right above the first section of drill rod, the second section of drill rod is spliced and connected with the first section of drill rod through the quick connector, the second drilling machine host is controlled to stably slide downwards along the main mast while the second drilling machine host drives the second section of drill rod and the first section of drill rod to rotate through the second winch, so that the second section of drill rod continuously drills into a soil body, and water or mixed liquid with an additive is injected into a drilled hole through the second section of drill rod, the first section of drill rod and an internal pipeline in the expansion wing drill bit according to geological conditions in the process of drilling the second section of drill rod into the soil body; after the expansion wing drill bit reaches the designed elevation, the second winch drives the second drilling machine host, the second section of drill rod, the first section of drill rod and the expansion wing drill bit to repeatedly lift and descend for a plurality of times to perform hole washing operation, and after hole washing is completed, the expansion wing of the expansion wing drill bit is opened under the control of an internal hydraulic system and simultaneously rotates and sweeps up and down, so that the bottom of a drilled hole is expanded to form a pile end expansion head;
4) Injecting specified cement paste into the pile end expansion head through the internal pipelines in the second section of drill rod, the first section of drill rod and the expansion wing drill bit, and driving the second drilling machine host, the second section of drill rod, the first section of drill rod and the expansion wing drill bit to lift and descend for several times by the second winch in the injection process until the cement paste at the pile end expansion head is injected, and then disturbing the expansion wing of the expansion wing drill bit under the control of an internal hydraulic system;
5) The second winch drives the second drilling machine host to lift upwards; the second drilling machine main machine drives the second section of drill rod, the first section of drill rod and the expansion wing drill bit to rotate while lifting, and fills the peripheral cement paste around the drill hole through the internal pipelines in the second section of drill rod, the first section of drill rod and the expansion wing drill bit; stopping rotary lifting and grouting after the second section of drill rod is completely pulled out of the drill hole, clamping and fixing the first section of drill rod by using a pile clamping oil cylinder of the pile planting device, dismantling the connection between the second section of drill rod and the first section of drill rod, starting a drilling frame platform to reversely rotate for 45 degrees, and connecting a first drilling machine host with the first section of drill rod;
6) After the first drilling machine host is connected with the first section of drill rod, the first section of drill rod is loosened by the pile clamping cylinder, the first drilling machine host is driven by the first winch to lift upwards, the first drilling machine host drives the first section of drill rod and the expansion wing drill bit to lift and rotate simultaneously, and pile periphery cement paste is injected into the periphery of a drilled hole through internal pipelines in the first section of drill rod and the expansion wing drill bit until the first section of drill rod and the expansion wing drill bit are pulled out of the ground, the bottom of the expansion wing drill bit is higher than the top of the pile planting device, and then the drilling frame platform is started to drive the main mast to rotate for 90 degrees, so that no shielding exists above the pile planting device;
7) Hoisting a section of precast pile by using a hoisting device, vertically placing the section of precast pile between two pile planting frames of a pile planting device, clamping the section of precast pile by using a pile clamping cylinder of the pile planting device, separating the hoisting device from the section of precast pile, and hoisting another section of precast pile by using the hoisting device; meanwhile, the pile clamping oil cylinder loosens the clamping degree of the clamped precast pile, the precast pile with the loosened clamping degree is planted in the drilled hole filled with cement slurry by utilizing the pile planting oil cylinder of the pile planting device, and when the pile top surface of the planted precast pile is 0.8 meters to 1 meter away from the plate surface of the platform main plate of the equipment platform, the top of the planted precast pile is clamped by the pile clamping oil cylinder;
8) Fixedly connecting the lifted other precast pile with the planted precast pile into a whole by adopting a welding or mechanical connection method; and after the connection is completed, the pile planting device continuously sinks the prefabricated piles after the connection is completed into the drilled holes, and the operation is repeated until all the prefabricated piles are sunk into the drilled holes.
The first section of precast pile is a bamboo joint pile with an annular bulge on the pile body, and the rest precast piles are one or more of bamboo joint piles, PHC pipe piles and composite reinforcement piles.
The innovation points and the advantages of the invention are as follows:
1) The device has the functions of drilling, bottom expanding and grouting and pile planting. The construction concept that the hole forming and pile planting technology adopted by other precast piles is changed and the pile planting technology adopts one piece of equipment is changed, so that the construction cost is greatly reduced. The required construction equipment is few, reduces the rolling of the construction equipment to the construction site, protects the construction site, and is favorable for construction quality and construction progress.
2) The drilling frame platform can rotate 360 degrees, and the centers of the two drilling machine hosts and the center of the pile planting device can be ensured to be concentric. Therefore, the drill rod can be disassembled and assembled only by rotating the drilling frame platform, and the equipment platform is not required to be moved and adjusted. The method is convenient and quick, and the construction efficiency is greatly improved.
3) The two drilling machine hosts are hung, and the drill rod can be mounted on the drilling machine hosts in advance, so that splicing and dismounting time of the drilling machine hosts and the drill rod during drilling can be greatly shortened, and construction efficiency is improved.
4) After drilling, bottom expanding and grouting, pile planting can be performed immediately, so that the traditional pile planting technology is changed in that a pile machine system is required to be removed, pile planting equipment is moved to a pile planting mode, the solidification time of cement paste is shortened, and construction quality is guaranteed.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is one of the construction state diagrams of the present invention;
FIG. 4 is a second construction state diagram of the present invention;
FIG. 5 is a third construction state diagram of the present invention;
FIG. 6 is a fourth construction state diagram of the present invention;
FIG. 7 is a fifth construction state diagram of the present invention;
FIG. 8 is a sixth construction state diagram of the present invention;
FIG. 9 is a seventh construction state diagram of the present invention;
Fig. 10 is an eighth construction state diagram of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 10 are schematic views of the structure of the present invention and its construction state.
Wherein the reference numerals are as follows: the device comprises a distribution box D, a drilling frame base M, a balancing weight P, a precast pile Z, an equipment platform 1, a platform main board 11, a traveling long ship 12, a traveling short ship 13, a pile planting device 2, a pile planting frame 21, a lifting device 3, a lifting operation platform 31, a telescopic boom 32, a lifting hook 33, a drilling frame platform 4, a drilling platform 41, a drilling frame turntable 42, a main mast 5, a drilling machine main machine 6, a sliding block 6a, a first drilling machine main machine 61, a second drilling machine main machine 62, a winch 7, a first winch 71, a second winch 72, a main mast support 8, a drill pipe 9, a stirring blade 91 and an expansion wing drill 92.
In the prior art, the pile planting process of precast piles is generally completed by two sets of large-scale construction equipment, wherein the two sets of construction equipment comprise pile machine equipment and planting equipment. Two sets of large-scale equipment are respectively drilled and planted the stake operation, need equipment many, and area is big to two sets of large-scale equipment are in and out at construction site round trip, and not only waste time, the efficiency of construction is low, can also carry out repeated rolling to construction site moreover, causes the destruction of surrounding environment.
The invention discloses precast pile sinking equipment, which has a hole forming function and a pile planting function, and comprises a movable equipment platform 1 which can move back and forth and left and right, wherein a square pile planting hole for drilling and pile planting to pass through is formed in the center of the equipment platform 1, a pile planting device 2 for pile planting is fixedly arranged on the equipment platform 1 at the pile planting hole, and a lifting device 3 capable of rotating 360 degrees is arranged on the left side of the pile planting device 2 on the equipment platform 1. The hoisting device 3 is used for hoisting the precast pile Z, and conveying the hoisted precast pile Z to the pile planting device 2, and the pile planting device 2 performs pile planting. The right side that is located on the equipment platform 1 and plants stake device 2 fixed mounting has drilling frame base M, installs drilling frame platform 4 on the drilling frame base M, and drilling frame platform 4 also can do 360 degrees rotations. The drilling device for drilling is arranged on the drilling frame platform 4, and the drilling device is arranged on the drilling frame platform 4 and can integrally and synchronously rotate along with the drilling frame platform 4. The drilling device comprises a main mast 5 mounted on a drilling rig platform 4 near one end of the pile planting device 2, and two rig main frames 6 mounted on the main mast 5. The root of the main mast 5 is mounted in an articulated manner upright on the rig floor 4, and two rig main frames 6 are arranged at 45 degrees apart circumferentially on the main mast 5. The main machine 6 is used for driving the drill rod 9 to drill holes in a rotating mode, and the main machine 6 can move up and down along the main mast 5 under the guidance of the main mast 5. The advantages of the two drilling machine hosts 6 are: when one drilling machine host 6 drives one section of drill rod 9 to work, the other drilling machine host 6 can be connected with or detached from the other section of drill rod 9, so that the time for installing or detaching the drilling machine host 6 and the drill rod 9 can be saved. The up-and-down movement of the two main drilling machine units 6 on the main mast 5 is driven by a winch 7, and the winch 7 is also fixedly arranged on the drilling frame platform 4 and is connected with the main drilling machine units 6 through a steel wire rope. The drilling frame platform 4 is also provided with a distribution box D for providing power for all power utilization units on pile sinking equipment. In order to ensure stability of the main mast 5, it can be seen from fig. 1 and 2 that the main mast 5 is hinged with two main mast supports 8 for supporting the main mast 5. In order to ensure that the verticality of the main mast 5 can meet the requirements of the construction process, the main mast support 8 of the present invention is a telescopic support bar assembly, which can adjust its length by telescoping, so as to adjust the verticality of the main mast 5 by means of extension or shortening.
According to the invention, the pile planting device 2, the lifting device 3 and the drilling device are all arranged on the equipment platform 1, so that the hole forming and pile planting process can be completed by one piece of equipment, the occupied area is small, the construction efficiency is high, the construction quality can be ensured, the rolling of construction equipment to a construction site is reduced, and the construction site is protected.
In the embodiment, the equipment platform 1 of the present invention mainly comprises a platform main board 11 and four walking boats having a walking function. The platform main board 11 is a rectangular metal steel frame board, and four traveling vessels are arranged on the bottom surface of the platform main board 11 and used for supporting the platform main board 11. The four traveling vessels comprise two traveling long vessels 12 and two traveling short vessels 13, the two traveling long vessels 12 are correspondingly arranged at the bottoms of the two width sides of the platform main board 11, and the two traveling short vessels 13 are correspondingly arranged at the bottoms of the two length sides of the platform main board 11 and are positioned at the center of the length sides. The long traveling vessel 12, when coupled with the short traveling vessel 13, can move the equipment platform 1 in the longitudinal direction of the long traveling vessel 12. Similarly, the traveling short vessel 13, when coupled with the traveling long vessel 12, can move the equipment platform 1 in the longitudinal direction of the traveling short vessel 13. When the equipment is in a drilling and pile planting working state, the four traveling ships are in close contact with the ground so as to ensure the stability of the equipment.
The pile planting device 2, the lifting device 3 and the drilling frame base M are all arranged on a platform main board 11, and two balancing weights P for balancing are fixedly arranged on one side of the platform main board 11, on which the lifting device 2 is arranged. The balancing weight P is mainly used for balancing the equipment, so that the gravity center of the equipment in the running and drilling pile planting working state of the equipment can be located at the center of the equipment platform 1, the stress is balanced, and the safety is ensured.
In the embodiment, the square pile-planting hole is formed in the center of the platform main board 11, and the pile-planting device 2 comprises two pile-planting frames 21 arranged on the left side and the right side of the pile-planting hole, and a pile-clamping cylinder and a pile-planting cylinder, wherein the pile-clamping cylinder is arranged on the two pile-planting frames 21 and used for clamping a precast pile Z, and the pile-planting cylinder is used for planting piles.
In the embodiment, the lifting device 3 of the invention comprises a lifting operation table 31 with a turntable at the bottom and a telescopic boom 32 arranged on the lifting operation table 31, wherein a lifting hook 33 for lifting the precast pile Z is arranged on the telescopic boom 32; the lifting console 31 is mounted on the left side of the platform main plate 11, i.e., near one short side of the left side of the platform main plate 11. The lifting console 31 can be rotated 360 degrees by means of a turntable mounted at its bottom, so that the telescopic boom 32 is extended in different directions.
In an embodiment, the drilling carriage platform 4 of the present invention comprises a drilling carriage plate 41 and a drilling carriage turntable 42 mounted below the drilling carriage plate 41 for rotating the drilling carriage plate 41. The bottom surface of the drilling frame turntable 42 is fixedly arranged on the drilling frame base M; the main mast 5, the distribution box D and the hoist 7 are all arranged on the drilling platform 41. In order to ensure a balanced centre of gravity of the rig floor 4, it can be seen from the figures that the rig floor 41 is provided with a rig counterweight at the opposite end to the main mast 5.
In the embodiment, the bottom surface of the drilling platform 41 is higher than the highest point of the pile planting device 2. The drilling carriage platform 4 is mounted on the carriage base M such that the bottom surface of the drilling carriage 41 is higher than the highest point of the pile planting device 2, thus ensuring that the drilling carriage 41 and all components mounted on the drilling carriage 41 are not blocked by any component when the carriage turntable 42 rotates. As can be seen from fig. 1, the upper end of the main mast support 8 is hinged to the main mast 5 near the top end of the main mast 5 at a hinge point that is one quarter of the length from the top end of the main mast 5, i.e. one quarter of the total length of the main mast 5. The lower end of the main mast support 8 is provided with a telescopic cylinder, the total length of the main mast support 8 can be adjusted by using the telescopic cylinder, and the cylinder body of the telescopic cylinder is arranged on the drilling platform 41.
In the embodiment, two guide sliding rails or guide sliding grooves extending along the height direction of the main mast 5 are formed on the main mast 5, a bottom plate is arranged on the bottom surface of the main machine 6, and a sliding block 6a in sliding guide fit with the guide sliding rails or the guide sliding grooves of the main mast 5 is arranged on the bottom plate. Through the sliding fit of the sliding block 6a and the guiding sliding rail or the guiding sliding groove, the stability of the up-and-down movement of the main machine 6 of the drilling machine can be ensured.
In the embodiment, for convenience of description, we name one of the two drilling machine hosts 6 as a first drilling machine host 61 and the other one of the two drilling machine hosts 6 as a second drilling machine host 62, and correspondingly, the winch 7 includes a first winch 71 which drives the first drilling machine host 61 to move up and down through a wire rope and a second winch 72 which drives the second drilling machine host 62 to move up and down through the wire rope. The two drilling machine hosts 6 are driven by two windlass 7, and are not affected by each other. The drill rod 9 is a hollow drill rod with stirring blades 91 arranged on the peripheral surface at intervals, and the stirring blades can disperse and stir soil in the soil drilling process. The drill pipe 9 is hollow and internally provided with internal pipes for supplying hydraulic and water slurry. Since the first section of drill pipe 9 is required to drill the earth, the bottom end of the drill pipe 9 mounted on the first drill main body 61 is fitted with an expansion wing drill 92 having a bottom expansion function. The interior of the expansion wing drill 92 is also hollow and is also provided with internal plumbing for supplying hydraulic and hydraulic fluid. The expansion wing drill 92 is also provided with expansion wings which are opened or closed under hydraulic control, and the bottom of the drilled hole can be reamed to form a pile end expansion head by controlling the opening of the expansion wings.
The invention also discloses a construction method of the precast pile sinking equipment, which comprises the following steps:
1) The equipment platform 1 is walked to a piling position by using a walking ship, the center of a square pile planting hole is aligned to the center of the piling position, after the perpendicularity of the main mast 5 is adjusted by the main mast support 8, the first drill pipe 9 provided with the expansion wing drill bit 92 is driven to rotate by the first drill machine host 61, meanwhile, the first drill machine host 61 is controlled to stably slide downwards along the main mast 5 by the first winch 71, so that the first drill pipe 9 drills into soil, and water or mixed liquid with additive is injected into the drilled hole by the first drill pipe 9 and an internal pipeline in the expansion wing drill bit 92 according to geological conditions in the process of drilling the first drill pipe 9 into the soil; see fig. 3.
2) Stopping drilling when the first section of drill rod 9 drills into the soil body and the top end of the first section of drill rod 9 is 0.5 m to 1m away from the platform main board, dismantling the connection between the first drilling machine host 61 and the first section of drill rod 9, and then pulling the first drilling machine host 61 to slide upwards along the main mast 5 through the first winch 71 so that the first drilling machine host 61 is separated from the first section of drill rod 9; see fig. 4.
3) Starting the drilling frame platform 4 to rotate for 45 degrees, enabling the second drilling machine host 62 to drive the second section of drill rod 9 to rotate right above the first section of drill rod 9, splicing and connecting the second section of drill rod 9 with the first section of drill rod 9 by utilizing a quick connector, controlling the second drilling machine host 62 to stably slide downwards along the main mast 5 through the second winch 72 while driving the second section of drill rod 9 and the first section of drill rod 9 to rotate, enabling the second section of drill rod 9 to continuously drill into a soil body, and injecting water or mixed liquid mixed with an additive into a drilled hole through the second section of drill rod 9, the first section of drill rod 9 and an internal pipeline in the expansion wing drill bit 92 according to geological conditions in the process of drilling the second section of drill rod 9; after the expansion wing drill bit 92 reaches the designed elevation, the second winch 72 drives the second drilling machine host 62, the second section of drill rod 9, the first section of drill rod 9 and the expansion wing drill bit 92 to repeatedly lift and descend for a plurality of times to perform hole washing operation, after hole washing is completed, the expansion wing of the expansion wing drill bit 92 is opened under the control of an internal hydraulic system and simultaneously rotates and sweeps up and down, so that the bottom of a drilled hole is expanded to form a pile end expansion head; see FIG. 5
4) Injecting prescribed cement paste into the pile end expansion head through the internal pipelines in the second section of drill rod 9, the first section of drill rod 9 and the expansion wing drill bit 92, wherein in the injection process, the second winch 72 drives the second drilling machine host 62, the second section of drill rod 9, the first section of drill rod 9 and the expansion wing drill bit 92 to lift and descend for a plurality of times until the cement paste at the pile end expansion head is injected, and the expansion wing of the expansion wing drill bit 92 is disturbed under the control of an internal hydraulic system;
5) The second winch 72 drives the second drilling machine host 62 to lift upwards; the second drilling machine main machine 62 drives the second section of drill rod 9, the first section of drill rod 9 and the expansion wing drill bit 92 to rotate while lifting, and fills the pile periphery cement paste into the periphery of the drilled hole through the internal pipelines in the second section of drill rod 9, the first section of drill rod 9 and the expansion wing drill bit 92; after the second section of drill rod 9 is completely pulled out of the drill hole, stopping rotary lifting and grouting, clamping and fixing the first section of drill rod 9 by using a pile clamping oil cylinder of the pile planting device 2, dismantling the connection between the second section of drill rod 9 and the first section of drill rod 9, starting the drill frame platform 4 to reversely rotate for 45 degrees, and connecting the first drilling machine host 61 with the first section of drill rod 9; see fig. 6.
6) After the first drilling machine host 61 is connected with the first section of drill rod 9, the pile clamping oil cylinder loosens the first section of drill rod 9, the first winch 71 drives the first drilling machine host 61 to lift upwards, the first drilling machine host 61 drives the first section of drill rod 9 and the expansion wing drill bit 92 to rotate while lifting, and pile cement paste is injected into the periphery of a drilled hole through internal pipelines in the first section of drill rod 9 and the expansion wing drill bit 92 until the first section of drill rod 9 and the expansion wing drill bit 92 are pulled out of the ground, and the bottom of the expansion wing drill bit 92 is higher than the top of the pile planting device 2, as shown in fig. 7. Then, starting the drilling frame platform 4 to drive the main mast 5 to rotate 90 degrees, so that no shielding exists above the pile planting device 2; see fig. 8.
7) Hoisting a section of precast pile Z by using a hoisting device 3, vertically placing the section of precast pile Z between two pile planting frames 21 of a pile planting device 2 (see figure 9), clamping the section of precast pile Z by using a pile clamping cylinder of the pile planting device 2, separating the hoisting device 3 from the section of precast pile Z, and hoisting another section of precast pile Z by using the hoisting device 3; meanwhile, the pile clamping oil cylinder loosens the clamping degree of the clamped precast pile Z, the pile planting oil cylinder of the pile planting device 2 is used for planting the precast pile Z with the loosened clamping degree into a drilled hole into which cement paste is injected, and when the pile top surface of the planted precast pile Z is 0.8m to 1m away from the plate surface of the platform main board 11 of the equipment platform 1, the pile clamping oil cylinder is used for clamping the top of the planted precast pile Z;
8) Fixedly connecting the lifted other precast pile Z with the planted precast pile Z into a whole by adopting a welding or mechanical connection method; after the connection is completed, the pile planting device 2 continuously sinks the prefabricated pile Z with the connection completed into the drilled hole, and the operation is repeated until all the prefabricated piles Z are sunk into the drilled hole. See FIG. 10
In the embodiment, the first section of precast pile Z lifted is a bamboo joint pile with an annular bulge on a pile body, and the rest of precast piles Z are one or more of bamboo joint piles, PHC pipe piles and composite reinforcement piles.
The preferred embodiments of this invention have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this invention.
Claims (4)
1. Precast pile sinking equipment comprises a movable equipment platform and is characterized in that: the center of the equipment platform (1) is provided with a pile planting device (2) for planting piles, one side of the equipment platform (1) positioned on the pile planting device (2) is provided with a lifting device (3) capable of rotating 360 degrees for lifting precast piles (Z), and the other side of the equipment platform (1) positioned on the pile planting device (2) is fixedly provided with a drilling frame base (M); a drilling frame platform (4) capable of rotating by 360 degrees is arranged on the drilling frame base (M), a main mast (5) is hinged and erected on the drilling frame platform (4), and two drilling machine hosts (6) for driving a drilling rod (9) to rotate are circumferentially arranged on the main mast (5) at 45 degrees; the drilling frame platform (4) is also provided with a winch (7) which is connected with the main machine (6) of the drilling machine through a steel wire rope and used for driving the main machine (6) of the drilling machine to move up and down along the main mast (5) and a distribution box (D) used for distributing power to all power utilization units on the equipment; the main mast (5) is hinged with two main mast supports (8) which are used for supporting the main mast (5) and can adjust the perpendicularity of the main mast (5) through extension or shortening;
The equipment platform (1) comprises a platform main board (11) with a rectangular structure and four walking boats with a walking function, wherein the four walking boats are arranged on the bottom surface of the platform main board (11); the four walking boats comprise two walking long boats (12) correspondingly arranged at two short sides of the bottom surface of the platform main board (11) and two walking short boats (13) correspondingly arranged at the centers of the two long sides of the bottom surface of the platform main board (11); the pile planting device (2), the lifting device (3) and the drilling frame base (M) are all arranged on the platform main board (11), and two balancing weights (P) for balancing are fixedly arranged on one side of the platform main board (11) where the lifting device (3) is arranged;
The hoisting device (3) comprises a hoisting operation table (31) with a turntable at the bottom and a telescopic boom (32) arranged on the hoisting operation table (31), wherein a lifting hook (33) for hoisting the precast pile (Z) is arranged on the telescopic boom (32); the lifting operation table is arranged on one side, close to one short side, of the platform main board (11);
Two guide sliding rails extending along the height direction of the main mast (5) are formed on the main mast (5), and a sliding block (6 a) matched with the guide sliding rails of the main mast (5) in a sliding and guiding manner is arranged on the main machine (6);
One of the two drilling machine hosts (6) is a first drilling machine host (61), the other of the two drilling machine hosts (6) is a second drilling machine host (62), and correspondingly, the winch (7) comprises a first winch (71) which drives the first drilling machine host (61) to move up and down through a steel wire rope and a second winch (72) which drives the second drilling machine host (62) to move up and down through the steel wire rope; the drill rod (9) is a hollow drill rod with stirring blades (91) at intervals on the outer peripheral surface, and an expansion wing drill bit (92) with a bottom expansion function is assembled at the bottom end of the drill rod (9) arranged on the first drilling machine main machine (61).
2. A precast pile driving apparatus as defined in claim 1, characterized in that: the center of platform mainboard (11) open and to be used for drilling and planting the square pile planting hole that the stake passed through, plant stake device (2) including installing two pile planting frame (21) of planting the stake hole left and right sides and install the pile clamping hydro-cylinder that is used for pressing from both sides precast pile (Z) and be used for planting the stake on two pile planting frame (21).
3. A precast pile driving apparatus as defined in claim 2, characterized in that: the drilling frame platform (4) comprises a drilling platform (41) and a drilling frame turntable (42) which is arranged below the drilling platform (41) and used for driving the drilling platform (41) to rotate; the bottom surface of the drilling frame turntable (42) is fixedly arranged on the drilling frame base (M); the main mast (5), the distribution box (D) and the windlass (7) are all arranged on the drilling platform (41).
4. A precast pile driving apparatus as defined in claim 3, wherein: the horizontal height of the bottom surface of the drilling platform (41) is higher than the highest point of the pile planting device (2); the upper end hinge of the main mast support (8) is at a length of one quarter of the distance from the top end of the main mast (5), and the lower end of the main mast support (8) is connected with a telescopic oil cylinder which is arranged on a drilling platform (41).
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| CN113882804A (en) * | 2021-10-26 | 2022-01-04 | 宁波中淳高科股份有限公司 | Drilling equipment and drilling method |
| CN114775597B (en) * | 2022-03-26 | 2024-03-22 | 河南全过程工程研究院有限公司 | Drilling pile burying device for precast pile and working method of drilling pile burying device |
| CN118029893A (en) * | 2024-04-11 | 2024-05-14 | 山河智能装备股份有限公司 | Hole guiding pile pressing machine |
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| CN102561946B (en) * | 2012-02-01 | 2014-07-23 | 山河智能装备股份有限公司 | Drill while drilling machine and construction method of pile while drilling |
| CN110273413A (en) * | 2019-06-12 | 2019-09-24 | 宁波中淳高科股份有限公司 | A kind of efficient construction method of prefabricated pile |
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