CN117780254A - Application method of spinning torsion type composite pile construction comprehensive device under ultra-low clearance - Google Patents
Application method of spinning torsion type composite pile construction comprehensive device under ultra-low clearance Download PDFInfo
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Abstract
The invention discloses an application method of an ultra-low clearance spinning torsion composite pile construction integrated device, which comprises a main unit device and a sub unit device, wherein the main unit device and the sub unit device are in quick detachable combined connection through a unit connection line and a quick plug; the invention can automatically operate, shift and walk through the comprehensive device, solves the problem of drill shifting, has quite sufficient equipment power, and changes the mode of pile hole forming into that: rotation, rotation under pressure, torsion, vibration, a down-the-hole hammer, a top hammer and other modes; particularly, the spinning function is added, so that the pile forming capability of the hole forming is greatly improved. The hydraulic system with the top hammer is designed, and has strong applicability to sandy pebbles and rock strata. The sub-machine unit device adopts a climbing pile frame, and can lengthen the length of a single pile. Through the setting of parent machine rotating machine, can be adaptability carry out drilling and impressing to the pile body of inclined pile or different inclination.
Description
Technical Field
The invention belongs to the technical field of composite pile construction, and particularly relates to an application method of an ultra-low-clearance spinning torsion type composite pile construction comprehensive device.
Background
In the process of reinforcing and reforming an existing building (structure), the reinforcing and reforming or underpinning work of a foundation is particularly important. Pile foundations, which are a primary means of foundation reinforcement, present unique challenges in the construction of existing building interiors or interiors. Because conventional pile foundation construction equipment and processes are often not suitable for low headroom environments, it is common practice to employ anchor rod static piles or micro piles formed by geological drilling rigs. However, these methods often have difficulty meeting high design requirements in terms of pile diameter, pile length, and single pile bearing capacity. Therefore, development of a new pile foundation construction process and supporting equipment is needed, which not only can meet the construction requirements of the existing building (structure) in a low-clearance environment, but also can provide larger pile diameter, pile length and higher single pile bearing capacity.
The construction of the existing composite pile has the following defects: the drilling machine is not enough to be automatic in shifting, the next hole site is replaced, the next hole site is required to be disassembled again or pried, the construction and the walking are very inconvenient, and the like; the pore-forming mode and the power source of the equipment are relatively simple, only two functions of single rotary spraying and static pressure are needed, the rotary spraying of the drilling machine drives the drill rod without pressurized power, the static pressure of drilling cannot provide the rotary pressing function, and the like; poor adaptability to stratum, and the sandy pebble stratum and the rock stratum can not be formed into holes to form piles; the whole tower frame is inflexible in height and direction adjustment, each section of steel pipe in the static pressure stage is too short under the influence of the tower frame, and the whole efficiency is not high. The pile frame is relatively fixed, and the single-section drilling length is relatively short, generally 1-1.5m; in ultra-low clearance environments, the functionality of conventional drilling rigs is significantly limited, especially in terms of construction of batter piles, and is hardly operable. This is because the range of motion and the angle of operability of the mechanical equipment are greatly limited in limited space, making construction of the batter pile a technical challenge.
Disclosure of Invention
The invention provides an application method of an ultra-low clearance spinning torsion type composite pile construction comprehensive device, which is used for solving the technical problems of drilling and pressing in of composite piles at the ultra-low clearance, convenient implementation of construction equipment, large pile diameter or inclined pile construction and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an application method of a spinning torsion type composite pile construction comprehensive device under ultra-low clearance comprises the steps that the composite pile is located at the position or partially located at the ultra-low clearance, and the composite pile comprises vertical arrangement and inclined arrangement; the soil body where the composite pile is located is hard or dense;
the ultra-low clearance adjustable spinning torsion composite pile construction comprehensive device comprises a main unit device and a sub unit device, wherein the main unit device and the sub unit device are in quick detachable combined connection through a unit connection line and a quick plug;
the master unit device comprises a master rack, a master motor detachably connected to the master rack, a master electronic control cabinet connected to the master rack and connected with the master motor, a master travelling mechanism connected to a crawler-type master under the master motor, master supporting legs arranged around the master rack, a master large arm fluctuating cylinder arranged at one longitudinal end of the master rack, a master rotating machine connected with the master large arm fluctuating cylinder, a master large arm supporting rod connected to the master rotating machine, a master large arm supporting lug connected with the master large arm supporting rod, a master large arm mast connected with the master large arm supporting lug, a master large arm pulley arranged in the large arm mast, a master large arm pressurizing chain connected to the master large arm pulley in a sliding manner, a torsion component fixedly connected with the master large arm pressurizing chain and a master clamping component corresponding to the position right below the spinning component;
The spinning torsion assembly comprises a main machine power head, a main machine power head and a main machine gun head, wherein the main machine power head comprises a main machine hydraulic jack hammer, the main machine power head is connected below the main machine hydraulic jack hammer, and the main machine gun head and/or the main machine gun head are/is connected below the main machine power head; the main machine power head is correspondingly connected with the main machine large arm pressurizing chain and can perform rotation and twisting construction; the hydraulic top hammer of the mother machine can be replaced by a down-the-hole hammer;
the master clamping assembly comprises an upper clamping assembly and a lower clamping assembly integrally connected below the upper clamping assembly, the upper clamping assembly and the lower clamping assembly both comprise clip drawers, a group of clamping hydraulic clamp cylinders are arranged in the clip drawers, the telescopic end of each clamping hydraulic clamp cylinder is connected with a clip block, and the clip blocks are all arranged in an arc shape; a group of clip blocks encircle the corresponding clamping pile body or the drill rod;
the sub-machine unit device comprises a sub-machine base frame, a sub-machine ground traveling cylinder arranged above the sub-machine base frame, a sub-machine main beam connected above the sub-machine ground traveling cylinder, a sub-machine main vertical rod vertically connected to the sub-machine main beam, a sub-machine large-torque power head arranged at the middle upper part of the sub-machine main vertical rod, a sub-machine adding lower disc detachably connected below the sub-machine large-torque power head, a sub-machine pressurizing cylinder and a sub-machine high-pressure tap arranged at the top of the sub-machine large-torque power head, a sub-machine pressurizing cylinder upper frame connected above the sub-machine pressurizing cylinder, and sub-machine vertical climbing frames capable of being lifted and connected to two ends of the sub-machine pressurizing cylinder upper frame in the long direction; the vertical climbing frame of the sub machine is a vertical rod; wherein the sub-machine adding lower disc is arranged corresponding to the pile body or the drill rod; the sub-machine main beam at the bottom is also detachably provided with a sub-machine clamping block capable of being automatically controlled; the top of the sub-machine large-torque power head is also provided with a down-the-hole hammer or a hydraulic jack hammer;
The application method of the spinning torsion type composite pile construction integrated device based on the ultra-low clearance comprises the following specific construction steps:
step one, determining the sizes of a main machine gun head, a clip block, a sub machine clamping block and a sub machine adding lower disc according to the diameters of the composite pile and the drill rod; according to the geological survey data, determining a main machine motor and a main machine oil tank according to the soil type and the spinning torsion construction characteristics;
step two, the construction of the composite pile body is divided into a small pile body and a large pile body, wherein the small pile body and the large pile body are divided into a pile diameter of 250 mm; the construction of the small pile body is performed through a main machine unit device, and the construction of the large pile body is performed through a sub machine unit device; the sub-unit device is synchronously constructed with the main unit device through a unit connecting line and a quick connector, and the sub-unit device uses a main motor and a main oil tank of the main unit device as power sources and is also provided with a sub-unit pressurizing oil cylinder for combined power supplementing construction;
step three, during construction, according to the design position of the composite pile, walking the master unit device to the pile body position through a crawler-type master walking mechanism, and then fixedly connecting with the foundation ground through a master supporting leg; the sub machine unit device is fixedly arranged with the foundation ground through a sub machine base frame, and the position of the bottom of the frame body is adjusted through a sub machine ground traveling oil cylinder, so that the center position of a sub machine clamping block is opposite to the center position of a pile body to be constructed;
Step four, when the construction is carried out at the main machine unit device, the main machine large arm mast is adjusted according to the perpendicularity and the inclination angle of the pile hole so as to enable the angle of the main machine large arm mast to be the same; when the angle is adjusted, the angle is rotated by a master rotating machine;
step five, after the main machine unit device is in place, a main machine hydraulic jack hammer and a main machine power head start to work, and drilling construction of rotation, rotation under pressure, torsion and vibration is performed by installing a drill rod at the small gun head; the grouting device is characterized in that a grouting pump is connected at and through a joint arranged at the gun head, and slurry is sprayed while drilling and high-pressure air punching are performed on soil on the side wall; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation; the steel pipe pile or the concrete pile in the composite pile can be constructed under the combined action of vertical vibration, rotation and torsion pressure through the small gun head; when the drill rod or the pile body is constructed, the clamp block is automatically controlled to carry out clamping construction, so that accurate construction is realized; the hydraulic jack hammer, the power head, the gun head and the gun head of the main machine are driven by the main machine large arm pressurizing chain to carry out lifting construction;
step six, after the sub-machine unit device is in place, connecting a drill rod through a sub-machine adding lower disc, and carrying out rotary, rotary under-pressure, torsional and vibratory drilling construction under the combined action of a sub-machine large-torque power head, a hydraulic jack hammer or a down-the-hole hammer, a sub-machine pressurizing oil cylinder and a sub-machine high-pressure water tap, and punching a side wall soil body while drilling and spraying slurry while high-pressure air punching; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation;
Step seven, the steel pipe pile or the concrete pile in the composite pile can be constructed under the combined actions of pressure, rotation and torsion by adding a pan head to the sub-machine; lifting construction is carried out on the vertical climbing frame of the sub-machine by the upper frame of the sub-machine pressurizing oil cylinder, wherein the sub-machine pressurizing oil cylinder can also carry out fine adjustment on the height through telescopic construction; when the drill rod or the pile body is constructed, the clamping block of the sub-machine is automatically controlled to carry out clamping construction, so that accurate construction is realized.
Further, the mother rack is a box-type frame and is made of section steel; the top of the mother frame is provided with an ear plate which is correspondingly connected with a master large arm fluctuation cylinder; the middle part of the bottom of the main frame is also provided with a central rotary support, and the central rotary support horizontally rotates, so that the main frame and a structure connected with the main frame are driven to horizontally rotate, and the pile construction in different directions is adapted in situ.
Further, the female machine landing leg comprises a telescopic vertical rod and a connecting plate connected to the bottom of the telescopic vertical rod, and the connecting plate is fixedly connected with the foundation ground through anchoring.
Further, the main machine large arm mast is a rectangular rod, and the lower part of the main machine large arm mast is connected with a main machine rotating machine; the main machine rotating machine is connected with a main machine large arm mast through a rotating shaft; the master large arm supporting rod is connected with the master large arm supporting lug which is arranged at the middle upper part of the master large arm mast; the master rotating machine is also connected with the bottom of the master large arm fluctuation cylinder through an ear plate.
Furthermore, the main machine gun head and the main machine gun head are cylindrical, and an opening is formed in the bottom of the main machine gun head and the main machine gun head, wherein the diameter of the main machine gun head is larger than that of the main machine gun head, and a gap is reserved between the main machine gun head and the main machine gun head in a sleeving manner; the middle part of the gun head of the main machine is also provided with a connector which is correspondingly connected with a water pipe or a slurry pipe; the connector is a sleeve with a connecting tube head, and the sleeve is sleeved on the gun head of the main machine; and a plurality of holes are further formed in the gun head of the main machine, and the holes are used for draining water or slurry.
Further, the clip drawer of the upper clamping assembly is arranged as a U-shaped piece, one side of the opening is far away from the main machine large arm mast and is provided with an ear plate, and a clamping connecting rod is detachably connected with the clip drawer, and the clamping connecting rod and the U-shaped piece are encircled to form a letter in a mouth; the clamp drawer at one side of the upper clamping assembly, which is close to the main machine large arm mast, is provided with a notch, and the notch corresponds to penetration of the main machine large arm mast; the inner side edge of the opening side of the U-shaped piece is provided with a clip block; the clamping hydraulic clamp cylinder is connected with the clamp drawer through a hydraulic clamp cylinder pin piece and is connected with the clamp block.
Further, the clip drawer of the lower clamping assembly is arranged as a U-shaped piece, one side of the opening is far away from the main machine large arm mast and is provided with an ear plate, and a clamping connecting rod is detachably connected with the ear plate, the clamping connecting rod and the U-shaped piece are encircled to form a letter, and the inner side edge of the opening side of the U-shaped piece is provided with a clip block; the clamping hydraulic clamp cylinder is connected with the clamp drawer through a hydraulic clamp cylinder pin piece and is connected with the clamp block;
A clamping base is arranged between the lower clamping assembly and the main machine large arm mast, and a clamping hydraulic clamp swing cylinder is connected to a clamp drawer on one side of the lower clamping assembly close to the main machine large arm mast through a hydraulic clamp swing cylinder pin piece.
Further, the sub-machine base frame is a rectangular frame, and one end of the sub-machine base frame is connected with one end of a sub-machine ground walking oil cylinder through an ear plate; the other end of the sub-machine ground walking cylinder is connected in the main beam of the bottom sub-machine in a penetrating way; the sub-machine main beam at the bottom is arranged in a hollow way and is arranged in a rectangular frame corresponding to the machine base frame; the inner wall and the outer wall of the frame of the main beam of the sub-machine at the bottom are also detachably connected with sub-machine clamping blocks; the son machine clamp splice is two arc pieces, and two arc pieces set up relatively.
Further, the main cross beam of the sub machine and the vertical rod of the sub machine are connected into a cuboid frame, wherein the main cross beam of the sub machine is rectangular or square, and a sub machine vertical climbing frame is arranged on the main cross beam of the sub machine in a sliding way corresponding to the upper frame of the pressurizing oil cylinder of the sub machine; the sub-machine vertical climbing frame is arranged in the height range of the sub-machine main vertical rod in a through length manner; the auxiliary machine pressurizing oil cylinder upper frame side connected with the auxiliary machine vertical climbing frame is also provided with an auxiliary machine bolt oil cylinder which is used for lifting and climbing.
Furthermore, a cuboid frame is taken as a unit section, and the frame body is heightened by assembling the unit section; a butt joint connecting plate is arranged at the top of the main vertical rod of the sub-machine for connecting and assembling; the butt joint end of the sub-machine vertical climbing frame is arranged to be concave-convex socket joint, so that the sub-machine vertical climbing frame is still arranged in a full length mode in the assembled frame body.
The beneficial effects of the invention are as follows:
1) According to the invention, by adopting a main unit device and a sub unit device and a design, the drilling machine can automatically operate, shift and walk, so that the problem of drilling machine shifting is solved; and the power of the equipment is quite sufficient, and the mode of pile hole forming is changed: rotation, rotation under pressure, torsion, vibration, a down-the-hole hammer, a top hammer and other modes; particularly, the spinning function is added, so that the pile forming capability of the hole forming is greatly improved.
2) According to the invention, through different designs of the main machine unit device and the sub machine unit devices, the adaptability to strata is strong, a top hammer type hydraulic system design is adopted, a down-the-hole hammer can be selected according to the needs, and the device can be fully used in sandy pebble and rock strata; the sub-machine unit device adopts a climbing pile frame, can be assembled and heightened according to the operation space, and is beneficial to lengthening the pile length of a single section.
3) According to the invention, through the arrangement of the main machine rotating machine, inclined piles or pile bodies with different inclination angles can be adaptively drilled and pressed in; and the master machine clamping assembly is combined for accurate positioning construction; the master unit device of the invention increases the independent walking capability, and the slave unit device increases the bottom sliding adjustment capability, so that the mobile construction and the accurate positioning are easy under low clearance, and the piling and pore-forming of various complex stratums under ultra-low clearance are satisfied.
4) Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary object and other advantages of the invention may be realized and attained by means of the instrumentalities and particularly pointed out in the specification.
Drawings
FIG. 1 is a schematic diagram of a low clearance spinning torsion type composite pile construction integrated device;
FIG. 2 is a schematic diagram of the structure of a master unit device;
FIG. 3 is a top view of the structure of the master unit device;
FIG. 4 is a top view of the clamping member on the master clamping assembly;
FIG. 5 is a side view of the clamp on the master clamp assembly;
FIG. 6 is a top view of the lower clamp of the master clamp assembly;
FIG. 7 is a side view of the lower clamp of the master clamp assembly;
FIG. 8 is a schematic diagram of a sub-unit apparatus;
FIG. 9 is a cross-sectional view of a sub-unit assembly;
fig. 10 is a schematic view of a sub-machine clamp block connection structure.
Reference numerals: 1-mother unit device, 101-mother rack, 102-mother motor, 103-mother electric control cabinet, 105-mother oil tank, 105-mother travelling mechanism, 106-mother landing leg, 107-mother big arm fluctuation cylinder, 108-mother rotating machine, 109-mother big arm supporting rod, 110-mother big arm supporting lug, 111-mother big arm mast, 112-mother big arm pulley, 113-mother big arm pressurizing chain, 114-mother hydraulic jack hammer, 115-mother power head, 1181-clip drawer, 2-clip block, 1183-clip connecting rod, 1184-clip hydraulic pliers cylinder; 1185-hydraulic clamp cylinder pin pieces, 1186-clamping hydraulic clamp swing cylinder pin pieces, 1187-hydraulic clamp swing cylinder pin pieces, 1188-clamping base, 119-central rotary support, 2-submachine unit devices, 201-submachine base frames, 202-submachine ground walking cylinders, 203-submachine main beams, 204-submachine main vertical rods, 205-submachine large torque power heads, 206-submachine adding and descending plates, 207-submachine pressurizing cylinders, 208-submachine high-pressure water taps, 209-submachine pressurizing cylinder upper frames, 210-submachine bolt cylinders, 211-submachine vertical climbing frames, 212-submachine clamping blocks, 3-unit connecting lines and 4-quick connectors.
Detailed Description
Taking a gym as an example, the original basement is modified by increasing the layer height, and a new basement structure is implemented on the inner side of the original structure foundation, so that construction is required to be carried out on the basement with the layer height of about 3m, and a soil body below the ground surface of the ground is provided with a pebble layer with the thickness of about 1 m. And forming a new pile foundation in the form of adding steel piles into the jet grouting piles in the reconstruction field for supporting a new reconstructed basement. And carrying out integrated construction of the jet grouting pile and the steel pile by using the ultra-low clearance lower spinning torsion type composite pile construction comprehensive device.
As shown in fig. 1 to 10, the ultra-low clearance adjustable spinning torsion composite pile construction comprehensive device comprises a main unit device 1 and a sub unit device 2, wherein the main unit device 1 and the sub unit device 2 are quickly and detachably combined and connected through a unit connecting wire 3 and a quick connector 4.
The master unit device 1 is driven by a 75kw motor, and can drill holes with diameters within 250 mm. The main unit device 1 can implement various underground piling processes, including single-pipe, double-pipe and triple-pipe rotary spraying construction. The maximum power torque can reach 1.8 tons meter, the highest rotating speed can reach 90r/min, the lifting and pressurizing force can reach 10 tons, and the drilling depth can reach 50 meters. The size of the equipment is controlled within 0.9m multiplied by 3.8m in length, so that the equipment can conveniently enter a room from a doorway with the width of 1 meter and can be constructed in a clear height space with the minimum height of 2.8 meters. The main unit device 1 can rotate 360 degrees and adopts crawler tracks for walking.
When the sub-unit device 2 is required to perform pile hole construction with a diameter of 200mm to 800mm and a depth in a smaller space, the main unit device 1 is difficult to meet the requirements, and the sub-unit device 2 is used for further joint construction. The dimensions of the sub-unit device 2 are within 0.9m x 2m, and the same applies to a clear height space of a minimum of 2.8 meters. The power source comes from the main unit device 1, and is connected with an oil pipe of the main unit device 1 through a unit connecting wire 3 and a quick connector 4 to work.
The maximum power torque of the sub-unit device 2 reaches 6 tons meter, the maximum pulling force is 40 tons, the maximum rotating speed is 45r/min, the drilling diameter can reach 800mm, and the depth is 50 meters. The equipment is suitable for construction of various pile bodies such as CFG pile construction, pneumatic down-the-hole hammer, high-pressure jet grouting, jacking steel pipes and the like.
In this embodiment, the master unit device 1 includes a master frame 101, a master motor 102 detachably connected to the master frame 101, a master electric control cabinet 103 connected to the master frame 101 and connected to the master motor 102, a master traveling mechanism 105 connected to a crawler-type lower part of the master motor 102, a master leg 106 provided around the master frame 101, a master boom relief cylinder 107 provided at one end of the master frame 101 in the longitudinal direction, a master rotating machine 108 connected to the master boom relief cylinder 107, a master boom support bar 109 connected to the master rotating machine 108, a master boom support lug 110 connected to the master boom support bar 109, a master boom mast 111 connected to the master boom support lug 110, a master boom pressing chain 113 provided inside the boom mast, a master boom pressing chain 113 slidingly connected to the master boom pulley 112, a torque assembly fixedly connected to the master boom pressing chain 113, and a master clamping assembly 118 directly below the corresponding spinning assembly;
The main frame 101 is a box-type frame and is made of section steel; the top of the main frame 101 is provided with an ear plate which is correspondingly connected with a main frame large arm fluctuation cylinder 107; the middle part of the bottom of the mother frame 101 is also provided with a central rotary support 119, and the central rotary support 119 horizontally rotates, so that the mother frame 101 and a structure connected with the mother frame are driven to horizontally rotate, and the pile construction in different directions is adapted in situ. The female machine leg 106 comprises a telescopic upright rod and a connecting plate connected to the bottom of the telescopic upright rod, and the connecting plate is fixedly connected with the foundation ground through anchoring.
In this embodiment, the spinning torque assembly includes a main machine power head 115 including a main machine hydraulic jack 114, a main machine power head 115 connected below the main machine hydraulic jack 114, a main machine cannon head 116 and/or a main machine cannon head 117 connected below the main machine power head 115; the main machine power head 115 is correspondingly connected with the main machine large arm pressurizing chain 113 and can perform rotation and twisting construction; the hydraulic jack hammer 114 of the mother machine can be replaced by a down-the-hole hammer;
in this embodiment, the main machine large arm mast 111 is a rectangular rod, and the lower part thereof is connected with the main machine rotating machine 108; the main machine rotating machine 108 is connected with a main machine large arm mast 111 through a rotating shaft; the general master large arm supporting rod 109 on the outer side of the master rotating machine 108 is connected with the master large arm supporting lug 110, and the master large arm supporting lug 110 is arranged at the middle upper part of the master large arm mast 111; the master rotating machine 108 is also connected with the bottom of the master large arm relief cylinder 107 through an ear plate.
In the embodiment, the main machine gun head 116 and the main machine gun head 117 are cylindrical, and an opening is formed in the bottom of each main machine gun head, wherein the diameter of the main machine gun head 116 is larger than that of the main machine gun head 117, and a gap is reserved between the main machine gun head 116 and the main machine gun head 117 in a sleeved mode; the middle part of the main machine cannon head 116 is also provided with a connector which is correspondingly connected with a water pipe or a slurry pipe; the connector is a sleeve with a connecting tube head, and the sleeve is sleeved on the gun head 116 of the main machine; the main machine gun head 116 is also provided with a plurality of holes for draining water or slurry.
In this embodiment, the master clamping assembly 118 includes an upper clamping assembly and a lower clamping assembly integrally connected below the upper clamping assembly, the upper clamping assembly and the lower clamping assembly both include a clip drawer 1181, a group of clamping hydraulic clamp cylinders 1184 are disposed in the clip drawer 1181, a clip block 1182 is connected to a telescopic end of each clamping hydraulic clamp cylinder 1184, and the clip blocks 1182 are all arc-shaped; a set of clip blocks 1182 surrounds the corresponding clamping piles or drill pipes;
in this embodiment, the clip drawer 1181 of the upper clamping assembly is a U-shaped member, and one side of the opening is far away from the main machine large arm mast 111 and is provided with an ear plate and is detachably connected with a clamping connecting rod 1183, and the clamping connecting rod 1183 and the U-shaped member are surrounded to form a letter in a mouth; the clip drawer 1181 on the side of the upper clamping assembly adjacent to the main machine large arm mast 111 is provided with a notch, and the notch corresponds to the penetration of the main machine large arm mast 111; the inner side edge of the opening side of the U-shaped piece is provided with a clip block 1182; wherein, clamping hydraulic clamp cylinder 1184 is connected with clamp drawer 1181 and clamp block 1182 through hydraulic clamp cylinder pin 1185.
In this embodiment, the clip drawer 1181 of the lower clamping assembly is a U-shaped member, one side of the opening is far away from the main machine large arm mast 111 and is provided with an ear plate and is detachably connected with a clamping connecting rod 1183, the clamping connecting rod 1183 and the U-shaped member are surrounded to form a letter, and the inner side of the opening side of the U-shaped member is provided with a clip block 1182; wherein, the clamping hydraulic clamp cylinder 1184 is connected with the clamp drawer 1181 and the clamp block 1182 through a hydraulic clamp cylinder pin 1185; a clamping base 1188 is arranged between the lower clamping component and the main machine large arm mast 111, and a clamping hydraulic clamp swinging oil cylinder 1186 is connected to a clamp drawer 1181 on the side, close to the main machine large arm mast 111, of the lower clamping component through a hydraulic clamp swinging oil cylinder pin 1187.
In this embodiment, the sub-unit device 2 includes a sub-unit base frame 201, a sub-unit ground traveling cylinder 202 disposed above the sub-unit base frame 201, a sub-unit main beam 203 connected above the sub-unit ground traveling cylinder 202, a sub-unit main vertical beam 204 vertically connected to the sub-unit main beam 203, a sub-unit high torque power head 205 disposed at the upper middle part of the sub-unit main vertical beam 204, a sub-unit high torque power head 205 detachably connected to a sub-unit add-drop 206 below the sub-unit high torque power head 205, a sub-unit pressurizing cylinder 207 and a sub-unit high pressure tap 208 disposed at the top of the sub-unit high torque power head 205, a sub-unit pressurizing cylinder upper frame 209 connected above the sub-unit pressurizing cylinder 207, and a sub-unit vertical climbing frame 211 liftable connected to two ends of the sub-unit pressurizing cylinder upper frame 209 in a longitudinal direction; the sub-machine vertical climbing frame 211 is a vertical rod; wherein the sub-machine adding lower plate 206 is arranged corresponding to the pile body or the drill rod; the bottom sub-machine main beam 203 is also detachably provided with a sub-machine clamping block 212 capable of being automatically controlled; wherein, the top of the sub-machine large-torque power head 205 is also provided with a down-the-hole hammer or a hydraulic jack hammer;
In this embodiment, the sub-machine base frame 201 is a rectangular frame, and one end of the sub-machine base frame 201 is connected with one end of the sub-machine ground walking cylinder 202 through an ear plate; the other end of the sub-machine ground walking cylinder 202 is connected in the bottom sub-machine main beam 203 in a penetrating way; the sub-machine main cross beam 203 at the bottom is arranged in a hollow way and is arranged in a rectangular frame corresponding to the machine base frame; the inner wall and the outer wall of the frame of the bottom sub-machine main beam 203 are also detachably connected with sub-machine clamping blocks 212; the sub-machine clamping blocks 212 are two arc-shaped pieces, and the two arc-shaped pieces are oppositely arranged.
In this embodiment, the sub-machine main beam 203 and the sub-machine main vertical rod 204 are connected to form a cuboid frame, wherein the sub-machine main beam 203 is rectangular or square, and a sub-machine vertical climbing frame 211 is arranged on the sub-machine main beam 203 in a sliding manner corresponding to the sub-machine pressurizing oil cylinder upper frame 209; the sub-machine vertical climbing frame 211 is arranged in a through length manner within the height range of the sub-machine main vertical rod 204; a sub-machine plug oil cylinder 210 is further arranged on one side of the sub-machine pressurizing oil cylinder upper frame 209 connected with the sub-machine vertical climbing frame 211, and the sub-machine plug oil cylinder 210 is used for lifting and climbing.
In the embodiment, a cuboid frame is taken as a unit section, and a frame body is heightened by assembling the unit section; a butt joint connecting plate is arranged at the top of the sub-machine main vertical rod 204 and used for connecting and assembling; the butt joint end of the sub-machine vertical climbing frame 211 is arranged to be concave-convex socket joint, so that the sub-machine vertical climbing frame 211 in the assembled frame body is still arranged in a full length mode.
The invention is original, when pile foundation construction is carried out by using the rock bolt hydrostatic machine, one main challenge faced by the invention is the large resistance encountered when static pressure is applied. This resistance is mainly due to the pressure of the soil against the sides of the pile body and the obstruction encountered by the pile tip when penetrating the soil layer. In the conventional static pile construction process, such resistance may cause a reduction in construction efficiency and cause a large pressure on equipment. To solve this problem, the present invention makes technical improvements by converting static pressure into rotational pressure. This method is commonly referred to as a "rotary press-in" or "spinning" technique. In this method, the rock bolt hydrostatic machine is adapted or designed to apply rotational force to the pile body while applying vertical pressure. This rotational action helps to reduce frictional resistance between the soil and the pile body, making it easier for the pile to penetrate the soil layer. Specifically, the spinning technique reduces the construction resistance by: reducing lateral friction: the rotary action reduces the friction resistance between the side surface of the pile and the surrounding soil, so that the pile body is easier to sink. Improving the soil structure: the rotational pressure can destroy the binding force among soil particles, thereby improving the fluidity of the soil and reducing the obstruction to the pile tip. Improving penetration ability: the rotary motion increases the penetration force of the pile tip, helping to penetrate hard or tight soil layers more effectively. By implementing the rotary pressure, the construction efficiency can be obviously improved, and meanwhile, the mechanical load on construction equipment is reduced, and the service life of the construction equipment is prolonged. The method is particularly effective in constructing low-clearance environments or complex geological conditions such as hard soil layers, sand layers and the like.
Referring to fig. 1 to 10, an application method of the composite pile construction integrated device based on ultra-low clearance spinning torsion is further described, and specific construction steps are as follows:
step one, determining the sizes of a main machine cannon head 116, a main machine small cannon head 117, a clip block 1182, a sub machine clip block 212 and a sub machine adding lower disc 206 according to the diameters of the composite pile and the drill rod; based on the land survey data, the master motor 102 and the master oil tank 104 are determined based on the soil type and the spinning torque construction characteristics.
Step two, the construction of the composite pile body is divided into a small pile body and a large pile body, wherein the small pile body and the large pile body are divided into a pile diameter of 250 mm; the construction of the small pile body is performed through the main machine unit device 1, and the construction of the large pile body is performed through the sub machine unit device 2; the sub-unit device 2 is synchronously constructed with the main unit device 1 through the unit connection line 3 and the quick connector 4, and the sub-unit device 2 uses the main motor 102 and the main oil tank 104 of the main unit device 1 as power sources and is also provided with a sub-unit pressurizing oil cylinder 207 for combined power supplementing construction.
Step three, during construction, according to the design position of the composite pile, walking the master unit device 1 to the pile body position through a crawler-type master walking mechanism 105, and then fixedly connecting with the foundation ground through a master supporting leg 106; the sub-machine unit device 2 is fixedly arranged with the foundation ground through the sub-machine base frame 201, and the position of the bottom of the frame body is adjusted through the sub-machine ground traveling oil cylinder 202, so that the center position of the sub-machine clamping block 212 is opposite to the center position of the pile body to be constructed.
The method comprises the steps of checking the whole construction equipment before formal approach, ensuring good equipment state and prohibiting the approach of equipment with faults. The construction can be immediately put into operation after entering the field. When the equipment is assembled, an isolation area is set up, a special person directs the equipment, the equipment is assembled strictly according to a program, and non-installation personnel cannot be in the assembly area so as to stop safety accidents. And (5) arranging a material to enter, and carrying out material retest according to requirements. Quality and safety technology are adopted before starting work. According to the position of the outer wall surface of the basement of the existing building, the pile position of the steel pipe pile is accurately lofted to the site by full-time measuring staff according to the underpinning pile plan, and the pile position deviation is not more than 10mm. The original foundation slab is to form pile pressing holes by adopting a water drilling hole forming mode. And chiseling the building pavement layer on the surface of the bottom plate before drilling. The water driller is fixed on the surface of the bottom plate structure layer through expansion bolts, and holes are drilled along the outer ring of the holes in sequence. After the row Kong Zhengjuan, the middle concrete blocks are hoisted out through a pile driver winch, and pile pressing holes are formed.
The main machine supporting leg 106 is fixed through an anchor rod, the anchor rod is embedded by adopting a static pressure process, the anchor rod bolt is 8C25 and is 0.7m long, and the anchor rod bolt is anchored into the ground by 0.5m long. The diameter of the anchor bolt hole is 28mm, the anchor bolt hole is strictly positioned, the hole is vertical, the anchoring force is ensured, the hole is formed by adopting a water drilling method to avoid the influence of raft steel bars, residues in the hole are cleaned after the hole is formed, the hole is dried by a hot air gun, then the bar planting glue is injected, the anchor rod is placed, after the strength of the bar planting glue meets the design requirement, the counterforce frame is fixed on the anchor rod, the nut is locked, and the jack is fixed on the pile pressing counterforce frame.
Step four, when the construction is performed at the main machine unit device 1, the main machine large arm mast 111 is adjusted to be at an angle according to the perpendicularity and the inclination angle of the pile hole; the angle is adjusted by the master rotation machine 108.
Step five, after the mother unit device 1 is in place, the mother hydraulic jack 114 and the mother power head 115 start to work, and drilling construction of rotation, rotation under pressure, torsion and vibration is performed by installing a drill rod at the small gun head; the grouting device is characterized in that a grouting pump is connected at and through a joint arranged at the gun head, and slurry is sprayed while drilling and high-pressure air punching are performed on soil on the side wall; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation; the steel pipe pile or the concrete pile in the composite pile can be constructed under the combined action of vertical vibration, rotation and torsion pressure through the small gun head; when the drill rod or pile body is constructed, the clamp block 1182 is automatically controlled to carry out clamping construction, so that accurate construction is realized; the hydraulic ram 114, the power head 115, the gun head 116 and the gun head 117 are driven by the large arm pressurizing chain 113 to carry out lifting construction.
Hydraulic rams have shown to be highly effective in treating a wide variety of formation types, particularly in sandy and rocky formations. Due to the diversity of these formations in hardness and particle structure, conventional drilling techniques often appear to be frustrating. In contrast, the hydraulic design of the top hammer utilizes the strong impact force and penetration capacity of the top hammer, and the efficiency and effect of drilling hard materials are remarkably improved.
Step six, after the sub-machine unit device 2 is in place, connecting a drill rod through a sub-machine adding lower disc 206, and carrying out rotary, pressured rotary, torsional and vibratory drilling construction under the combined action of a sub-machine large torque power head 205, a hydraulic jack hammer or a down-the-hole hammer, a sub-machine pressurizing oil cylinder 207 and a sub-machine high-pressure water tap 208, and punching a side wall soil body while drilling and high-pressure air while spraying slurry; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation.
Step seven, the joint action construction of pressure, rotation and torsion can be carried out by adding a lower disc 206 head through a sub-machine when the steel pipe pile or the concrete pile in the composite pile is installed; lifting construction is carried out on the vertical climbing frame 211 of the sub-machine through the upper frame 209 of the pressurizing oil cylinder of the sub-machine, wherein the pressurizing oil cylinder 207 of the sub-machine can also be finely adjusted in height through telescopic construction; when the drill pipe or pile body is constructed, the robot clamp block 212 is automatically controlled to perform clamping construction, thereby precisely constructing.
When the pile distance of the underpinning piles is smaller than 2m, the construction sequence of jumping 1 to 1 is adopted, and the construction time interval between adjacent piles is not less than 1 day. After the device is in place, a high-pressure grouting pump is started, and slurry is sprayed while drilling and high-pressure air punching are performed on the soil body on the side wall. And controlling the stroke according to the designed drilling speed and controlling the pressure of the high-pressure grouting pump. When the high-pressure injection grouting pipe nozzle reaches the designed elevation, grouting can be injected. And after the injection grouting parameters reach the specified values, performing injection grouting under the requirement of high-pressure rotary spraying process parameters. When the jet pipe is lifted in a sectional way, the lap joint length of the jet grouting is not smaller than 100mm. After the high-pressure injection grouting is finished, the injection pipe should be pulled out rapidly, and the grouting liquid is recharged in the hole, and if necessary, the second grouting can be adopted. When pressure suddenly drops, rises or slurry is abnormally generated in the high-pressure injection grouting process, the reasons should be ascertained and measures should be taken in time. In the high-pressure injection grouting construction, slurry treatment is needed, and the slurry is transported out in time or transported out after being piled up in a short time on site.
Static pile pressing is needed, and spinning and twisting are also included. The single section length of the underpinning pile is about 1.5m or is determined according to the indoor clear height, the steel pipe connection is welded and connected with the inner sleeve, the inner sleeve is not needed during equal-strength welding, if the length of the inner sleeve is required to be correspondingly set, the pile conveying range is determined according to the jack stroke, and the short steel column of the processing part is used as a pile pressing device for pressing piles in batches. According to the field conditions, manual hoisting and splicing are mainly performed. When the pile cannot be pressed to the designed depth due to compaction of the soil layer in the pile pressing process, construction measures such as pre-drilling and the like can be adopted, and the length of the pressed pile is ensured to meet the design requirement.
After pile-forming construction of the underpinning pile is completed, the steel tube core pile with the length range of the pile top anchoring reinforcement cage is subjected to hole cleaning, after cleaning of the cement soil in the pipe is completed, the pile top anchoring reinforcement cage is placed, the length of the reinforcement cage is 2.5m, the anchoring steel tube is 1.5m, the main reinforcement is 10C25, and the reinforcing rib is C14@500. C30 concrete is poured into the steel pipe to complete pile forming. The specific sizes of other projects are determined according to the corresponding construction corresponding calculation.
The foregoing is merely illustrative of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions that would occur to those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. An application method of a spinning torsion type composite pile construction comprehensive device under ultra-low clearance is characterized in that the position of a composite pile or a part of the composite pile is positioned at the ultra-low clearance, and the composite pile comprises vertical arrangement and inclined arrangement; the soil body where the composite pile is located is hard or dense;
the ultra-low clearance adjustable spinning torsion composite pile construction comprehensive device comprises a main unit device (1) and a sub unit device (2), wherein the main unit device (1) and the sub unit device (2) are quickly and detachably combined and connected through a unit connecting wire (3) and a quick connector (4);
the master unit device (1) comprises a master frame (101), a master motor (102) detachably connected to the master frame (101), a master electronic control cabinet (103) connected to the master frame (101) and connected with the master motor (102), a master traveling mechanism (105) connected to a crawler-type lower part of the master motor (102), master supporting legs (106) arranged around the master frame (101), a master large arm lifting cylinder (107) arranged at one longitudinal end of the master frame (101), a master rotating machine (108) connected with the master large arm lifting cylinder (107), a master large arm supporting rod (109) connected to the master rotating machine (108), a master large arm supporting lug (110) connected with the master large arm supporting rod (109), a master large arm mast (111) connected with the master large arm supporting lug (110), a master large arm pulley (112) arranged in the large arm mast, a master large arm pressurizing cylinder (113) which is arranged on the master large arm pulley (112) in a sliding manner, and a master clamping assembly (118) which is fixedly connected with a corresponding torsion button assembly below the large arm pressurizing assembly;
The spinning torsion assembly comprises a main machine power head (115) comprising a main machine hydraulic jack hammer (114), the main machine power head (115) connected below the main machine hydraulic jack hammer (114), and a main machine cannon head (116) and/or a main machine cannon head (117) connected below the main machine power head (115); the main machine power head (115) is correspondingly connected with the main machine large arm pressurizing chain (113) and can perform rotation and twisting construction; the hydraulic jack hammer (114) of the master machine can be replaced by a down-the-hole hammer;
the master clamping assembly (118) comprises an upper clamping assembly and a lower clamping assembly integrally connected below the upper clamping assembly, the upper clamping assembly and the lower clamping assembly both comprise clip drawers (1181), a group of clamping hydraulic clamp cylinders (1184) are arranged in the clip drawers (1181), the telescopic end of each clamping hydraulic clamp cylinder (1184) is connected with a clip block (1182), and the clip blocks (1182) are all arranged in an arc shape; a group of clip blocks (1182) encircle the corresponding clamping pile body or the drill rod;
the sub-machine unit device (2) comprises a sub-machine base frame (201), a sub-machine ground walking cylinder (202) arranged above the sub-machine base frame (201), a sub-machine main beam (203) connected above the sub-machine ground walking cylinder (202), a sub-machine main vertical rod (204) vertically connected to the sub-machine main beam (203), a sub-machine high-torque power head (205) arranged at the upper middle part of the sub-machine main vertical rod (204), a sub-machine adding lower disc (206) detachably connected below the sub-machine high-torque power head (205), a sub-machine pressurizing cylinder (207) and a sub-machine high-pressure faucet (208) arranged at the top of the sub-machine high-torque power head (205), a sub-machine pressurizing cylinder upper frame (209) connected above the sub-machine pressurizing cylinder (207), and a sub-machine vertical climbing frame (211) capable of being lifted and connected to two long ends of the sub-machine pressurizing cylinder upper frame (209); the sub-machine vertical climbing frame (211) is a vertical rod; wherein the sub-machine adding lower disc (206) is arranged corresponding to the pile body or the drill rod; the bottom sub-machine main beam (203) is also detachably provided with a sub-machine clamping block (212) which can be automatically controlled; wherein, the top of the sub-machine large-torque power head (205) is also provided with a down-the-hole hammer or a hydraulic jack hammer;
The application method of the spinning torsion type composite pile construction integrated device based on the ultra-low clearance comprises the following specific construction steps:
step one, determining the sizes of a main machine gun head (116), a main machine gun head (117), a clamp block (1182), a sub machine clamp block (212) and a sub machine adding and dropping disc (206) according to the diameters of the composite pile and the drill rod; according to the geological survey data, determining a master motor (102) and a master oil tank (104) according to the soil type and the spinning torque construction characteristics;
step two, the construction of the composite pile body is divided into a small pile body and a large pile body, wherein the small pile body and the large pile body are divided into a pile diameter of 250 mm; the construction of the small pile body is performed through a main machine unit device (1), and the construction of the large pile body is performed through a sub machine unit device (2); the sub-unit device (2) and the main unit device (1) are synchronously constructed through a unit connecting wire (3) and a quick connector (4), the sub-unit device (2) uses a main motor (102) and a main oil tank (104) of the main unit device (1) as power sources, and a sub-unit pressurizing oil cylinder (207) is also arranged for combined power supplementing construction;
step three, during construction, according to the design position of the composite pile, walking the main machine unit device (1) to the pile body position through a crawler-type main machine walking mechanism (105), and then fixedly connecting with the foundation ground through main machine supporting legs (106); the sub-machine unit device (2) is fixedly arranged with the foundation ground through a sub-machine base frame (201) and the position of the bottom of the frame body is adjusted through a sub-machine ground traveling oil cylinder (202), so that the center position of a sub-machine clamping block (212) is opposite to the center position of a pile body to be constructed;
Step four, when the construction is carried out at the position of the main machine unit device (1), the main machine large arm mast (111) is adjusted to enable the angle of the main machine large arm mast to be the angle according to the perpendicularity and the inclination angle of the pile hole; when the angle is adjusted, the angle is rotated by a master rotating machine (108);
step five, after the main machine unit device (1) is in place, a main machine hydraulic jack hammer (114) and a main machine power head (115) start to work, and drilling construction of rotation, rotation under pressure, torsion and vibration is performed by installing a drill rod at a small gun head; the grouting device is characterized in that a grouting pump is connected at and through a joint arranged at the gun head, and slurry is sprayed while drilling and high-pressure air punching are performed on soil on the side wall; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation; the steel pipe pile or the concrete pile in the composite pile can be constructed under the combined action of vertical vibration, rotation and torsion pressure through the small gun head; when the drill rod or pile body is constructed, the clamp block (1182) is automatically controlled to carry out clamping construction, so that accurate construction is realized; the hydraulic ram (114), the power head (115), the gun head (116) and the gun head (117) are driven by the main machine large arm pressurizing chain (113) to carry out lifting construction;
Step six, after the sub-machine unit device (2) is in place, connecting a drill rod through a sub-machine adding and dropping disc (206), and carrying out rotary, pressured rotary, torsional and vibratory drilling construction under the combined action of a sub-machine large-torque power head (205), a hydraulic top hammer or a down-the-hole hammer, a sub-machine pressurizing oil cylinder (207) and a sub-machine high-pressure water tap (208), while drilling, while punching a side wall soil body with high-pressure air, and while spraying slurry; controlling the stroke according to the designed drilling speed, and controlling the pump pressure of the high-pressure grouting pump; until the drilling pile is formed to the designed elevation;
step seven, the joint action construction of pressure, rotation and torsion can be carried out through a sub-machine with a lower disc (206) head when the steel pipe pile or the concrete pile in the composite pile is installed; lifting construction is carried out on the vertical climbing frame (211) of the sub-machine through the upper frame (209) of the pressurizing oil cylinder of the sub-machine, wherein the pressurizing oil cylinder (207) of the sub-machine can also carry out fine adjustment on height through telescopic construction; when the drill rod or pile body is constructed, the automatic control sub-machine clamping block (212) is used for clamping construction, so that accurate construction is realized.
2. The application method of the ultra-low clearance spinning torsion type composite pile construction comprehensive device according to claim 1, wherein the main frame (101) is a box type frame and is made of section steel; the top of the main frame (101) is provided with an ear plate which is correspondingly connected with a main frame large arm fluctuation cylinder (107); the middle part still is provided with central gyration support (119) at the bottom of female frame (101), and central gyration support (119) are the horizontal rotation again, drive female frame (101) and the structure of connecting thereof and do horizontal rotation motion from this, thereby the pile body construction of adaptation in situ different positions.
3. The method for applying the composite pile construction device according to claim 1, wherein the main machine support leg (106) comprises a telescopic upright rod and a connecting plate connected to the bottom of the telescopic upright rod, and the connecting plate is fixedly connected with the foundation ground through anchoring.
4. The application method of the ultra-low clearance spinning torsion composite pile construction comprehensive device is characterized in that the main machine large arm mast (111) is a rectangular rod, and the lower part of the main machine large arm mast is connected with a main machine rotating machine (108); the main machine rotating machine (108) is connected with a main machine large arm mast (111) through a rotating shaft; a master large arm supporting rod (109) on the outer side of the master rotating machine (108) is connected with a master large arm supporting lug (110), and the master large arm supporting lug (110) is arranged at the middle upper part of a master large arm mast (111); the master rotating machine (108) is also connected with the bottom of the master large arm fluctuation cylinder (107) through an ear plate.
5. The application method of the ultra-low clearance spinning torsion type composite pile construction comprehensive device is characterized in that a main machine gun head (116) and a main machine gun head (117) are cylindrical, openings are formed in the bottoms of the main machine gun head and the main machine gun head (117), the diameter of the main machine gun head (116) is larger than that of the main machine gun head (117), and a gap is reserved between the main machine gun head and the main machine gun head; the middle part of the main machine gun head (116) is also provided with a connector which is correspondingly connected with a water pipe or a slurry pipe; the connector is a sleeve with a connecting tube head, and the sleeve is sleeved on the gun head (116) of the main machine; the main machine gun head (116) is also provided with a plurality of holes for draining water or slurry.
6. The application method of the ultra-low clearance lower spinning torsion type composite pile construction comprehensive device is characterized in that a clip drawer (1181) of an upper clamping assembly is arranged for a U-shaped piece, one side of an opening is far away from a main machine large arm mast (111) and is provided with an ear plate, and a clamping connecting rod (1183) is detachably connected with the ear plate, and the clamping connecting rod (1183) and the U-shaped piece are encircled to form a U-shaped character; the upper clamping assembly is provided with a notch adjacent to a clip drawer (1181) on one side of the main machine large arm mast (111), and the notch corresponds to the penetration of the main machine large arm mast (111); the inner side edge of the opening side of the U-shaped piece is provided with a clip block (1182); the clamping hydraulic clamp cylinder (1184) is connected with the clamp drawer (1181) through a hydraulic clamp cylinder pin (1185) and is connected with the clamp block (1182).
7. The application method of the ultra-low clearance lower spinning torsion type composite pile construction comprehensive device is characterized in that a clip drawer (1181) of a lower clamping assembly is arranged for a U-shaped piece, one side of an opening is far away from a main machine large arm mast (111) and is provided with an ear plate, a clamping connecting rod (1183) is detachably connected, the clamping connecting rod (1183) and the U-shaped piece are surrounded to form a U shape, and a clip block (1182) is arranged on the inner side edge of the opening side of the U-shaped piece; the clamping hydraulic clamp cylinder (1184) is connected with the clamp drawer (1181) through a hydraulic clamp cylinder pin piece (1185) and is connected with the clamp block (1182);
A clamping base (1188) is arranged between the lower clamping assembly and the main machine large arm mast (111), and a clamping hydraulic clamp swing cylinder (1186) is connected to a clamp drawer (1181) on one side of the lower clamping assembly close to the main machine large arm mast (111) through a hydraulic clamp swing cylinder pin (1187).
8. The application method of the ultra-low clearance spinning torsion type composite pile construction comprehensive device is characterized in that a sub-machine base frame (201) is a rectangular frame, and one end of the sub-machine base frame (201) is connected with one end of a sub-machine ground walking oil cylinder (202) through an ear plate; the other end of the sub-machine ground walking oil cylinder (202) is connected in the bottom sub-machine main beam (203) in a penetrating way; the sub-machine main cross beam (203) at the bottom is arranged in a hollow mode and is arranged in a rectangular frame corresponding to the machine base frame; the inner wall and the outer wall of the frame of the main beam (203) of the sub-machine at the bottom are also detachably connected with sub-machine clamping blocks (212); the son machine clamp splice (212) is two arc-shaped pieces, and the two arc-shaped pieces are oppositely arranged.
9. The application method of the ultra-low clearance lower spinning torsion type composite pile construction comprehensive device is characterized in that a sub-machine main beam (203) and a sub-machine main vertical rod (204) are connected into a cuboid frame, wherein the sub-machine main beam (203) is rectangular or square, and a sub-machine vertical climbing frame (211) is arranged on the sub-machine main beam (203) in a sliding manner corresponding to an upper frame (209) of a sub-machine pressurizing oil cylinder; the sub-machine vertical climbing frame (211) is arranged in a through length within the height range of the sub-machine main vertical rod (204); a sub-machine plug oil cylinder (210) is further arranged on one side of the sub-machine pressurizing oil cylinder upper frame (209) connected with the sub-machine vertical climbing frame (211), and the sub-machine plug oil cylinder (210) is used for lifting and climbing.
10. The application method of the ultra-low clearance spinning torsion type composite pile construction comprehensive device is characterized in that a cuboid frame is used as a unit section, and a high frame body is arranged through assembling the unit section; a butt joint connecting plate is arranged at the top of the main vertical rod (204) of the sub-machine for connecting and assembling; the butt joint end of the sub-machine vertical climbing frame (211) is arranged to be concave-convex socket joint, so that the sub-machine vertical climbing frame (211) in the assembled frame body is still arranged in a full length.
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| CN207904903U (en) * | 2017-12-04 | 2018-09-25 | 汤湘军 | Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile |
| CN217681620U (en) * | 2022-08-03 | 2022-10-28 | 赛达（上海）传动工程有限公司 | Ultra-low clearance telescopic drill rod with built-in rotary joint |
| CN218376322U (en) * | 2022-08-03 | 2023-01-24 | 赛达（上海）传动工程有限公司 | Complete set of actuating mechanism of ultra-low clearance rotary drilling rig |
| CN116856389A (en) * | 2023-06-02 | 2023-10-10 | 上海申元岩土工程有限公司 | Construction method of large-diameter and ultra-long filling pile in limited space |
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