CN117947772A - Pile sinking method for combined steel sheet pile and vibrating hammer thereof - Google Patents
Pile sinking method for combined steel sheet pile and vibrating hammer thereof Download PDFInfo
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- CN117947772A CN117947772A CN202410354163.3A CN202410354163A CN117947772A CN 117947772 A CN117947772 A CN 117947772A CN 202410354163 A CN202410354163 A CN 202410354163A CN 117947772 A CN117947772 A CN 117947772A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000011010 flushing procedure Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims description 36
- 238000000429 assembly Methods 0.000 claims description 36
- 239000002131 composite material Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 description 10
- 244000309464 bull Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000002360 explosive Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The application relates to the technical field of foundation engineering, and discloses a pile sinking method of a combined steel sheet pile and a vibrating hammer thereof, wherein the pile sinking method of the combined steel sheet pile comprises the following steps: firstly, erecting a guide frame at a position to be driven, matching a combined steel sheet pile with the guide frame, and driving the combined steel sheet pile to drive the pile through vibration by a vibration hammer; secondly, stopping vibrating and flushing and dismantling the guide frame when the pile sinking of the combined steel sheet pile is higher than the guide frame by more than 0.5m, and hammering and pile sinking of the combined steel sheet pile by using a pile driving hammer; in the pile sinking process, if pile sinking is difficult, the flushing equipment is matched with the combined steel sheet pile to flush the soil body and take out gravel in the pile by reverse water so as to reduce pile sinking resistance. The application can reduce the pile sinking difficulty of the combined steel sheet pile in geology with larger geological penetration.
Description
Technical Field
The application relates to the technical field of steel sheet piles, in particular to a pile sinking method of a combined steel sheet pile and a vibrating hammer thereof.
Background
The steel sheet pile is a structure for sinking into the ground or underwater, can play roles in supporting, retaining soil and preventing water in foundation engineering, is formed by combining steel sheet piles in different forms, can be formed by combining and then sinking into the ground, and can be connected with the rest steel sheet piles through locking openings in a matching manner when sinking into the ground. The pile sinking mode of the combined steel sheet pile comprises vibration pile sinking, impact pile sinking, static pressure pile sinking and the like, but under the geological conditions of larger geological penetration degree, high friction resistance, and the like of fine sand geology, the pile sinking of the combined steel sheet pile to the designed elevation by using a single pile sinking mode has larger difficulty.
Disclosure of Invention
In order to reduce pile sinking difficulty of a combined steel sheet pile in geology with larger geological penetration, the application provides a pile sinking method of the combined steel sheet pile and a vibrating hammer thereof.
In a first aspect, the application provides a pile sinking method for a combined steel sheet pile, which adopts the following technical scheme:
A pile sinking method for a combined steel sheet pile comprises the following steps: firstly, erecting a guide frame at a position to be driven, matching a combined steel sheet pile with the guide frame, and driving the combined steel sheet pile to drive the pile through vibration by a vibration hammer; secondly, stopping vibrating and flushing and dismantling the guide frame when the pile sinking of the combined steel sheet pile is higher than the guide frame by more than 0.5m, and hammering and pile sinking of the combined steel sheet pile by using a pile driving hammer; in the pile sinking process, if pile sinking is difficult, flushing equipment is used to flush soil body and carry out reverse water to bring out gravel in the pile so as to reduce pile sinking resistance;
The combined steel sheet pile comprises a pile body, a stiffening plate and a locking plate, wherein the pile body is enclosed to form a combined cavity with closed periphery and open top and bottom, and the stiffening plate is arranged at the center of the pile body in the combined cavity; the pile body is symmetrical along the stiffening plate, the cross section of the pile body is hexagonal, the pile body comprises two opposite plates which are respectively opposite to the opposite sides of the stiffening plate and are parallel and opposite to each other, and side plates which are arranged on the opposite sides of the opposite plates, and one side of each side plate, which is far away from the corresponding plate, is connected with the side part of the stiffening plate; the locking plates are arranged on two opposite sides of the pile body and opposite to the stiffening plates, and the locking plates are used for locking two adjacent combined steel sheet piles.
Through adopting above-mentioned technical scheme, carry out the operation of first step pile sinking through the vibratory hammer, the accuracy of straightness that hangs down when improving combination steel sheet pile sinking, and improve the accuracy of combination steel sheet pile position and elevation through the leading truck, pile driving hammer improves pile sinking efficiency. In the pile sinking process, the flushing equipment is used for flushing soil body in the combined steel sheet pile and carrying gravel in the pile out of water in a reverse way, so that friction resistance encountered in the pile sinking process is reduced, pile sinking is smoother, and pile sinking difficulty of the combined steel sheet pile in geology with larger geological penetration degree is reduced. The pile body forms the combined cavity so that the flushing equipment can flush soil from the combined cavity into the pile body, and the hexagonal pile body can improve structural stability, disperse and resist pressure and stress from all directions.
Optionally, the height difference of adjacent combined steel plate piles is controlled within 5 m.
By adopting the technical scheme, the stability of the structure is improved, and the engineering quality is improved.
Optionally, the locking direction and the perpendicularity of the combined steel sheet pile are calibrated every time the combined steel sheet pile is sunk 1-2 m.
Through adopting above-mentioned technical scheme, in pile sinking process, calibrate the fore shaft direction and the straightness that hangs down of combination steel sheet pile, can ensure that pile sinking's position and straightness that hangs down are more accurate, reduce the deviation, improve pile sinking precision.
Optionally, the flushing equipment includes foundation frame, water flushing pipe and gas flushing pipe, the foundation frame cooperate in the combination sheet pile, the water flushing pipe with the gas flushing pipe all install in on the foundation frame, in pile sinking process, through the water flushing pipe with the gas flushing pipe is together to the soil body gravel of combination sheet pile bottom impact.
Through adopting above-mentioned technical scheme, when the water flushing pipe strikes the soil body, the air inlet pipe is given vent to anger and can be strengthened the disturbance effect of water to strengthen the impact effect of water, effectively with the sandy soil in the stake back out.
In a second aspect, the present application provides a vibratory hammer for use in the above method, which adopts the following technical scheme:
The vibrating hammer comprises a connecting frame, a vibrating device and a clamping device which are connected in sequence, wherein the vibrating device is used for providing vibration, and the clamping device is used for clamping the combined steel sheet pile;
The clamping device comprises a base, clamping assemblies and driving assemblies, wherein the base is connected to the vibrating device, the clamping assemblies are provided with two groups and move on the base, and the driving assemblies are used for driving the two clamping assemblies to respectively clamp the pair of plates on two sides of the stiffening plate; each group of clamping assembly comprises a first clamping seat and a second clamping seat, and the first clamping seat is opposite to the second clamping seat and is respectively used for propping against two opposite sides of the plate.
Through adopting above-mentioned technical scheme, carry out the centre gripping to two respectively to the board through two sets of clamping components to strengthen the centre gripping effect of vibratory hammer to combination steel sheet pile, and improve the homogeneity of vibratory hammer action on the combination steel sheet pile vibration force.
Optionally, two sets of clamping assembly's first grip slipper is located two sets of clamping assembly's second grip slipper between, the relative both sides of first grip slipper symmetry rotation respectively has the bull stick, first grip slipper every side bull stick quantity has two at least, and every all have the drive on the first grip slipper both sides bull stick symmetry synchronous rotation's rotating assembly.
Through adopting above-mentioned technical scheme, can widen the width of first grip slipper through the symmetry rotation of bull stick to make first grip slipper and bull stick common width adaptation pile body internal combination chamber's width, thereby can be directional to with first grip slipper relative to board center department, so that first grip slipper and second grip slipper centre gripping are in board center department, thereby further with vibration strength evenly distributed to the pile body on, be difficult for causing the position skew when combining steel sheet pile position vibration.
Optionally, a rotating shaft rotatably connected to the first clamping seat is fixed on the rotating rod, each group of rotating assemblies comprises,
The gear is coaxially and fixedly sleeved on the outer wall of the rotating shaft;
The racks are respectively moved to two opposite sides of the first clamping seat, are meshed with the gears positioned on the same side of the first clamping seat, are parallel to each other in the extending direction and the moving direction, and are opposite to each other in tooth surfaces;
the connecting rod is connected between the two racks; and
And the telescopic power source is arranged on the first clamping seat and matched with the connecting rod so as to drive the connecting rod to move along the extending direction of the rack.
Through adopting above-mentioned technical scheme, drive the connecting rod through flexible power supply and remove to drive the rack of first grip slipper both sides and remove simultaneously, thereby drive the rack of first grip slipper both sides and drive the gear simultaneously and to the synchronous rotation of opposite direction, thereby drive the bull stick of first grip slipper both sides and expand simultaneously or retrieve, in order to adapt to the width of combination chamber.
Optionally, one side of first grip slipper deviates from same group second grip slipper has removes the seat, it has the ball to remove the seat and deviate from same group the one side rotation of second grip slipper, just have on the first grip slipper and adjust remove the setting element in seat position, so that it is located first position and second position to remove the seat, works as it is located to remove the seat first position, the ball surpasses in first grip slipper surface, works as it is located to remove the seat second position, the ball accomodate in the first grip slipper.
Through adopting above-mentioned technical scheme, when the cooperation of vibratory hammer and combination steel sheet pile, surpass the ball in first grip slipper surface to adjust the first grip slipper in two sets of clamping assembly to being close to each other the direction, leave the clearance of pegging graft stiffening plate between the ball of messenger's two first grip slipper, through the common centre gripping stiffening plate of two first grip slipper, make the bull stick of the relative both sides of first grip slipper butt respectively on the curb plate inner wall of stiffening plate both sides simultaneously, with first grip slipper direction to be relative with the central point of board, in first grip slipper direction to the central point in-process of board, the ball contacts with the stiffening plate so that improves the smoothness of removing the vibratory hammer. And when the ball is contained in the first clamping seat, the first clamping seats in the two groups of clamping assemblies can form a single clamp so as to improve the adaptability of the vibrating hammer.
Optionally, the drive assembly includes a first screw rod, a second screw rod and a bidirectional screw rod, wherein the first screw rod, the second screw rod and the bidirectional screw rod are rotatably connected to the base and are parallel to each other, the first clamping seat in the two groups of clamping assemblies is respectively in threaded movement on the first screw rod and the second screw rod, the bidirectional screw rod is provided with a forward rotation part and a reverse rotation part with reverse threads, the second clamping seat in the two groups of clamping assemblies is respectively in threaded movement on the forward rotation part and the reverse rotation part, and the second clamping seat in the two groups of clamping assemblies is symmetrical along the center of the vibration device.
In summary, the present application includes at least one of the following beneficial effects:
1. The flushing equipment is matched with the combined steel sheet pile to flush soil body so as to reduce pile sinking resistance, thereby reducing pile sinking difficulty of the combined steel sheet pile in geology with larger geological penetration, improving vertical accuracy of the combined steel sheet pile when the combined steel sheet pile is initially sunk through the matching of the vibrating hammer and the combined steel sheet pile, and improving sinking efficiency of the combined steel sheet pile through the matching of the pile driving hammer and the combined steel sheet pile;
2. The vibrating hammer clamps two pairs of plates through two groups of clamping assemblies respectively so as to improve the effect of the vibrating hammer and the uniformity of the vibrating effect on the combined steel sheet pile.
Drawings
FIG. 1 is a schematic view of a composite steel sheet pile according to a first embodiment of the present application;
Fig. 2 is a schematic structural view of a steel sheet pile clamped and combined by a vibrating hammer in a second embodiment of the present application;
FIG. 3 is a schematic view of an explosive structure between a composite steel sheet pile and a foundation according to a second embodiment of the present application;
FIG. 4 is a schematic view of an explosive structure between a base and a clamping assembly according to a second embodiment of the present application;
FIG. 5 is an enlarged schematic view of the structure of FIG. 3A;
FIG. 6 is a cross-sectional view of a first clamping seat according to a second embodiment of the present application;
fig. 7 is an enlarged schematic view of the structure at B in fig. 6.
Reference numerals illustrate: 1. a pile body; 101. a plate is arranged; 102. a side plate; 2. stiffening plates; 3. a latch plate; 4. a combining cavity; 5. a connecting frame; 6. a vibration device; 7. a base; 71. a first rod body; 72. a second rod body; 8. a clamping assembly; 81. a first clamping seat; 82. a second clamping seat; 9. a drive assembly; 91. a first screw; 92. a second screw; 93. a bidirectional screw; 10. a rotating rod; 11. a rotating assembly; 111. a gear; 112. a rack; 113. a connecting rod; 114. a telescopic power source; 12. a rotating shaft; 13. a movable seat; 14. a ball; 15. an adjusting member; 151. an operation head; 152. an adjusting column; 16. a first mounting groove; 17. a second mounting groove; 18. a first moving chamber; 19. a second moving chamber; 20. a regulating chamber; 21. an operating chamber.
Detailed Description
The application is described in further detail below with reference to fig. 1-7.
Embodiment one:
the embodiment of the application discloses a pile sinking method for a combined steel sheet pile. The pile sinking method of the combined steel sheet pile comprises the following steps:
Firstly, vibrating pile sinking is carried out, a guide frame is erected at the position to be driven, a combined steel sheet pile is lifted to a vertical state by a crane, a vibrating hammer is lifted by the crane or a mechanical arm, and the vibrating hammer is clamped at the middle position of the top end of the combined steel sheet pile. Then the fixation of the combined steel sheet pile by the crane is released, and the combined steel sheet pile is driven to move to the guide frame by the crane or the manipulator of the vibrating hammer, so that the combined steel sheet pile is inserted into the soil body from the guide frame. Seven combined steel sheet piles are taken as a group, the combined steel sheet piles are sequentially vibrated by the vibrating hammer to enable the combined steel sheet piles to gradually sink, the combined steel sheet piles sink into 1-2m each time, the locking direction and the perpendicularity of the combined steel sheet piles are calibrated, and the height difference between adjacent combined steel sheet piles is controlled within 5 m.
And secondly, hammering pile sinking is carried out, when seven combined steel sheet piles are all driven to the top of the pile, and the pile sinking is stopped when the top of the pile is 0.5m higher than the guide frame, then the guide frame is dismantled, and the combined steel sheet piles are sequentially driven by using a pile driving hammer. The pile driving hammer in this embodiment is a guide rod type diesel hammer, and the pile driving hammer in other embodiments may be a hydraulic hammer by moving in cooperation with a walking pile driver.
Wherein, the guide frame is prior art, and is not repeated here. And in the processes of vibrating pile sinking and hammering pile sinking, the pile is subjected to geological penetration and friction resistance to be large, so that the pile is not easy to sink, and water is flushed by adopting flushing equipment to enter the combined steel sheet pile. The flushing equipment comprises a foundation frame, a flushing pipe and a flushing pipe, wherein the foundation frame is made of profile steel, the flushing pipe and the flushing pipe are arranged on the foundation frame, the flushing pipe is communicated with an external water source, and the flushing pipe is communicated with an external air source.
When the pile sinking process is difficult, the foundation frame is lifted and lowered into the combined steel sheet pile, the water flushing pipe and the air flushing pipe are downwards opened to flush water and air to soil gravel, and air drives water to disturb, so that gravel is carried out by the water in the combined steel sheet pile, and pile sinking resistance is reduced. And taking out the foundation frame, the flushing pipe and the flushing pipe after pile sinking is completed so as to recycle the foundation frame, the flushing pipe and the flushing pipe.
In this embodiment, the structure of the combined steel sheet pile is shown in fig. 1, and the combined steel sheet pile comprises a pile body 1, a stiffening plate 2 and a locking plate 3, wherein the pile body 1 extends along the vertical direction and encloses a combined cavity 4 with a closed periphery and an upper opening and a lower opening, and a foundation frame (not shown in the figure) of the flushing equipment is matched in the combined cavity 4 of the pile body 1 and does not interfere with a vibrating hammer and a diesel hammer used in the pile sinking process. The cross section on arbitrary vertical direction of pile body 1 all is the hexagon, and stiffening plate 2 welds in the pile body 1 in the middle part position in combination chamber 4, and stiffening plate 2 relative both sides weld respectively in two interior angles department that pile body 1 is relative to make pile body 1 follow stiffening plate 2 face symmetry.
The pile body 1 includes a pair of plates 101 and a side plate 102, and the pair of plates 101 have two opposite and parallel sides opposite to the stiffening plate 2, respectively. Each pair of plates 101 corresponds to two side plates 102, the two side plates 102 are respectively mirror symmetrical along the vertical center line of the corresponding plate 101, and the two side plates 102 are integrally formed on two opposite sides of the corresponding plate 101. One side of the two side plates 102 away from the corresponding plate 101 is welded to two opposite sides of the stiffening plate 2, and the linear distance between the two side plates 102 on the plate 101 gradually increases along the direction approaching the stiffening plate 2, so that all the plates 101 and the side plates 102 form a hexagon together.
The locking plate 3 is provided with two locking plates and is formed on the outer side of the pile body 1, the two locking plates 3 are respectively positioned at two opposite sharp corners where the pile body 1 is connected with the stiffening plate 2, the plate surfaces of the locking plates 3 on two sides of the pile body 1 are parallel to the plate surfaces of the stiffening plate 2, the locking plates 3 are provided with sunken locking openings, and the locking openings of the two locking plates 3 are opposite in direction. The two adjacent combined steel sheet piles are connected by mutually locking the locking plates 3 which are mutually close to each other through the locking openings.
Wherein, to the shaping of combination steel sheet pile, pile body 1 and two hasp boards 3 are formed by two Z shaped steel sheet piles and a U shaped steel sheet pile jointly, and Z shaped steel sheet pile and U shaped steel sheet pile are current steel sheet pile model. One end of each Z-shaped steel sheet pile is mutually locked to form a plate 101 on one side of the pile body 1, one end, away from each other, of each Z-shaped steel sheet pile forms a locking plate 3 on two sides of the pile body 1, two opposite sides of each U-shaped steel sheet pile are respectively welded on one end, away from each other, of each Z-shaped steel sheet pile, and the parts, except for the locking plates 3, of each Z-shaped steel sheet pile are welded together with each U-shaped steel sheet pile to form the pile body 1.
Embodiment two:
The embodiment of the application discloses a vibrating hammer which is suitable for vibrating pile sinking in the first embodiment. Referring to fig. 2, the vibratory hammer includes a connection frame 5, a vibration device 6, and a clamping device, which are sequentially connected, the vibration device 6 is capable of generating vibration, the connection frame 5 is connected with the vibration device 6 and is used for being matched with a crane or a manipulator, and the clamping device is disposed below the vibration device 6 for clamping the combined steel sheet pile so as to transmit the vibration of the vibration device 6 to the combined steel sheet pile.
The vibration device 6 includes a housing and a vibrator (the vibrator is not shown in the drawings), which is installed in the housing and is a related art in which an eccentric mass is rotated by a motor, and vibration is generated by the centrifugal action of the eccentric mass. The vibrator device 6 housing transmits the vibrator vibration to the clamping device.
Referring to fig. 2 and 3, the clamping device includes a base 7, a clamping assembly 8, and a driving assembly 9, the base 7 is mounted at the bottom of the housing of the vibration device 6, and a center point of the base 7 is opposite to a vibration center of the vibration device 6. The clamping assemblies 8 are provided with two groups, and the two groups of clamping assemblies 8 move on the base 7 under the driving action of the driving assembly 9 so as to respectively clamp the two plates 101 on the pile body 1, thereby enabling the vibrating hammer to drive the combined steel sheet pile to move together and enable the vibrating force to act on the combined steel sheet pile.
Referring to fig. 2 and 3, the base 7 is in a strip shape and includes a first rod 71 and a second rod 72 which are square and strip-shaped, the first rod 71 is integrally formed above the second rod 72 and extends along the same horizontal straight line direction, and the first rod 71 is fixedly mounted at the bottom of the housing of the vibration device 6. The width of the first rod 71 is smaller than that of the second rod 72, so that the longitudinal section of the base 7 forms an inverted T shape. In addition, referring to fig. 4, a first mounting groove 16 penetrating through the second rod 72 at the far ends is formed at the center of the bottom surface of the second rod 72 along the length direction of the second rod 72.
Referring to fig. 3 and 4, each set of clamping assemblies 8 includes a first clamping seat 81 and a second clamping seat 82, the first clamping seat 81 and the second clamping seat 82 are square and have matching grooves matched with the base 7, the first clamping seat 81 and the second clamping seat 82 are slidably sleeved on the outer walls of the first rod 71 and the second rod 72 along the length direction of the first rod 71 through the matching grooves, the first clamping seat 81 and the second clamping seat 82 have portions extending into the first mounting groove 16, the first clamping seats 81 of the two sets of clamping assemblies 8 are located between the second clamping seats 82 of the two sets of clamping assemblies 8, and the second clamping seats 82 of the two sets of clamping assemblies 8 are symmetrically arranged along the vertical center line of the first rod 71.
When the plates 101 are clamped together, the first clamping seat 81 is located in the pile body 1 and abuts against one surface of the plates 101 close to the stiffening plate 2, and the second clamping seat 82 is located outside the pile body 1 and abuts against one surface of the plates 101 away from the stiffening plate 2.
Referring to fig. 3 and 4, the driving assembly 9 includes a first screw 91, a second screw 92, and a bi-directional screw 93 rotatably coupled to the base 7 through bearing blocks and parallel to each other, and the first screw 91, the second screw 92, and the bi-directional screw 93 are driven to rotate by different rotation motors. The bearing blocks of the first screw 91 and the second screw 92 are mounted on the upper surface of the second rod 72, and the first screw 91 and the second screw 92 are opposite to two opposite sides of the first rod 71 respectively. The bearing seat of the bi-directional screw 93 is mounted on the inner top wall of the second rod 72 in the first mounting groove 16, the bi-directional screw 93 is located in the first mounting groove 16, and the axes of the bi-directional screw 93, the first screw 91 and the second screw 92 are all parallel to each other.
The first clamping seats 81 in the two groups of clamping assemblies 8 are respectively sleeved on the outer walls of the first screw rod 91 and the second screw rod 92 in a threaded manner, the first clamping seats 81 connected with the threads of the first screw rod 91 are simultaneously sleeved on the second screw rod 92 and the bidirectional screw rod 93 in a sliding manner, and the first clamping seats 81 connected with the threads of the second screw rod 92 are also simultaneously sleeved on the first screw rod 91 and the bidirectional screw rod 93 in a sliding manner. The bidirectional screw 93 is symmetrically provided with a forward rotation part and a reverse rotation part with opposite threads along the midpoint of the bidirectional screw, the second clamping seats 82 in the two groups of clamping assemblies 8 are respectively sleeved on the forward rotation part and the reverse rotation part in a threaded manner, and the second clamping seats 82 are simultaneously sleeved on the first screw 91 and the second screw 92 in a sliding manner.
The first screw 91 and the second screw 92 rotate to drive the corresponding first clamping seat 81 to move, and the bidirectional screw 93 rotates to drive the second clamping seats 82 in the two groups of clamping assemblies 8 to symmetrically move towards or away from each other. When the combined steel sheet pile is clamped, the position of the first clamping seat 81 is adjusted firstly, so that the first clamping seats 81 in the two groups of clamping assemblies 8 respectively enter two chambers of the combined cavity 4 separated by the stiffening plate 2, then the bidirectional screw 93 drives the second clamping seats 82 in the two groups of clamping assemblies 8 to move towards the direction close to each other until the second clamping seats respectively abut against one surface, away from each other, of the two plates 101, and then the first clamping seats 81 are sequentially moved towards the direction close to the second clamping seats 82 in the same group to abut against the plates 101.
Referring to fig. 3 and 5, further, each first clamping seat 81 rotates with the rotating rods 10 along two opposite sides of the width direction of the first rod body 71, the rotating rods 10 on two opposite sides of the first clamping seat 81 are in one-to-one correspondence and rotate in mirror symmetry along the vertical center line of the first clamping seat 81, the number of the rotating rods 10 on each side of the first clamping seat 81 is two or more, in this embodiment, two rotating rods 10 on the same side of the first clamping seat 81 are distributed vertically and are parallel to each other, and the lengths of all the rotating rods 10 are identical.
Referring to fig. 5 and 6, specifically, for the installation of the rotating rod 10, one end of the rotating rod 10 is fixed and is provided with a rotating shaft 12 in a penetrating manner, and the axial direction of the rotating shaft 12 is perpendicular to the length direction of the rotating rod 10. The side wall of the first clamping seat 81 is vertically provided with a second mounting groove 17, a rotating shaft 12 at the end part of the rotating rod 10 enters the second mounting groove 17 and rotates on the groove wall of the first clamping seat 81 at the second mounting groove 17, the rotating shaft 12 rotates to drive the rotating rod 10 to rotate up and down, and the rotating angle of the rotating rod 10 is between 0 and 90 degrees.
Referring to fig. 6, each first clamping seat 81 has a rotating assembly 11 for driving the rotating rod 10 to rotate, and the rotating direction and the rotating angle of the rotating rod 10 on the same side of the first clamping seat 81 are consistent under the driving of the rotating assembly 11, the rotating directions of the rotating rods 10 on the same side of the first clamping seat 81 are parallel to each other, and the rotating directions of the rotating rods 10 on the opposite sides of the first clamping seat 81 are opposite and the rotating angles are consistent.
Referring to fig. 3 and 5, the rotation angle of the rotating rod 10 is adjusted by the rotating assembly 11 to adjust the common width of the rotating rod 10 and the first clamping seat 81, so that when the first clamping seat 81 is in the combined cavity 4, one ends of the rotating rods 10 on two sides of the first clamping seat 81, which are far away from the first clamping seat 81, are respectively abutted against the inner walls of the side plates 102 on two opposite sides of the combined steel sheet pile, so that the vertical center line of the first clamping seat 81 is parallel to the vertical center line of the plate 101, and the first clamping seat 81 and the second clamping seat 82 can be clamped at the middle position of the plate 101. Therefore, after the combined steel sheet pile is clamped by the vibrating hammer, the vibrating hammer and the combined steel sheet pile are not easy to twist in the vertical position, and the uniformity of the vibrating hammer on the vibration of the combined steel sheet pile can be improved.
Referring to fig. 6 and 7, the rotating assembly 11 includes a gear 111, a rack 112, a connecting rod 113, and a telescopic power source 114. The gears 111 are in one-to-one correspondence with the rotating shafts 12, the gears 111 are coaxially fixed and sleeved on the outer walls of the corresponding rotating shafts 12, and the rotating rod 10 is provided with a yielding groove for yielding the gears 111.
The two racks 112 in each rotating assembly 11 are respectively moved up and down in two opposite sides of the first clamping seat 81, the two racks 112 are respectively located between the rotating rods 10 on two opposite sides of the first clamping seat 81, teeth of the two racks 112 are vertically distributed, and tooth surfaces of the two racks 112 are located on one sides of the two racks 112, which are away from each other. The first clamping seat 81 is provided with a first moving cavity 18 which is opposite to the rack 112 and is used for the rack 112 to move up and down, a gap which is communicated with the second mounting groove 17 and the first moving cavity 18 is formed at the opposite position of the first clamping seat 81 and the gear 111, the gear 111 extends into the first moving cavity 18 at the same side through the gap, all the gears 111 at the same side of the first clamping seat 81 are meshed with the rack 112 at the same side, so that the rack 112 moves up and down to drive the gears 111 at the same side to synchronously rotate, and the rotating rod 10 at the same side synchronously rotates.
The connecting rod 113 moves up and down in the first clamping seat 81, the first clamping seat 81 is provided with a second moving cavity 19 for the connecting rod 113 to move up and down, the second moving cavity 19 is simultaneously communicated with the first moving cavities 18 on two sides of the first clamping seat 81, two ends of the connecting rod 113, which are far away from each other, are respectively fixed on opposite surfaces of the two racks 112, and the length direction of the connecting rod 113 is perpendicular to the length direction of the racks 112. For ease of assembly, the first holder 81 is formed by multi-part assembly.
The telescopic power source 114 is an electric telescopic rod with a telescopic end capable of adjusting a telescopic distance, the base end of the telescopic power source 114 is fixedly embedded and installed at the bottom of the first clamping seat 81, the telescopic end of the telescopic power source 114 vertically extends into the second moving cavity 19 and is connected with the connecting rod 113 so as to drive the connecting rod 113 to move up and down to adjust the position, and accordingly racks 112 on two sides of the first clamping seat 81 are driven to move up and down at the same time, and the rotating rods 10 on two sides of the first clamping seat 81 rotate synchronously in the opposite direction. In addition, the end of the rotating rod 10 far away from the rotating shaft 12 is always located above the rotating shaft 12, and the end of the rotating rod 10 far away from the rotating shaft 12 is close to the side part of the first clamping seat 81 when the rotating rod 10 is recovered.
Referring to fig. 3 and 5, further, in order to improve the smoothness of the vibrating hammer when guided by the rotating rod 10, a moving seat 13 is disposed on a surface of the first clamping seat 81 facing away from the second clamping seat 82 of the same group, the moving seat 13 is in a square plate shape, a surface of the moving seat 13 is parallel to a surface of the first clamping seat 81 facing away from the second clamping seat 82 of the same group, a plurality of balls 14 are rotationally embedded on a surface of the moving seat 13 facing away from the second clamping seat 82 of the same group, and the balls 14 are arrayed on the moving seat 13 and protrude out of the surface of the moving seat 13.
Referring to fig. 5 and 6, an adjusting cavity 20 for moving the moving seat 13 is formed on a surface of the first clamping seat 81 facing away from the second clamping seat 82 of the same group. The first clamping seat 81 is provided with an adjusting piece 15 for adjusting the position of the movable seat 13, and the adjusting piece 15 drives the movable seat 13 to adjust the position in the adjusting cavity 20 along the length direction of the first rod body 71, so that the movable seat 13 can move to a first position and a second position relative to the first clamping seat 81.
When the movable seat 13 moves to the first position, a surface of the movable seat 13 facing away from the second clamping seat 82 of the same group is flush with a surface of the first clamping seat 81 facing away from the second clamping seat 82 of the same group, so that the balls 14 exceed a surface of the first clamping seat 81 facing away from the second clamping seat 82 of the same group. When the movable seat 13 moves to the second position, the movable seat 13 and the balls 14 are both accommodated in the adjusting cavity 20.
The adjusting member 15 includes an operating head 151 and an adjusting post 152, and the operating head 151 is fixed to one end of the adjusting post 152. The first clamping seat 81 is provided with an operation cavity 21 facing to one surface of the same group of second clamping seats 82, the first clamping seat 81 is provided with a thread groove for communicating the operation cavity 21 with the adjusting cavity 20, the adjusting column 152 moves on the first clamping seat 81 along the length direction parallel to the first rod body 71 through the thread groove, the operation head 151 is positioned in the operation cavity 21, and one end of the adjusting column 152, which is far away from the operation head 151, is rotationally connected to the moving seat 13. The operating head 151 is rotated from the operating cavity 21 to drive the adjusting column 152 to move in a threaded manner, so as to drive the movable seat 13 to move, and the operating head 151 is always located in the operating cavity 21.
Referring to fig. 3 and 5, the vibration hammer and the combined steel sheet pile are specifically matched in such a way that the first clamping seats 81 in the two groups of clamping assemblies 8 are moved to a position close to each other and symmetrical along the vertical center line of the base 7, and the distance between the balls 14 of the two first clamping seats 81 is consistent with the thickness of the stiffening plate 2. Then the combined steel sheet pile is pulled up by a crane or a mechanical arm, so that the combined steel sheet pile keeps a vertical extending state, and then the vibrating hammer is driven to move to the position above the combined steel sheet pile and keep a vertical state by the cooperation of another mechanical arm and the connecting frame 5.
Afterwards, the two first clamping seats 81 are abutted against the stiffening plate 2 through the balls 14 to jointly clamp the stiffening plate 2, the vibrating hammer is gradually lowered under the state, then the position of the rotating rod 10 is gradually adjusted, the vibrating hammer is moved according to the position of the rotating rod 10, the vibrating hammer is moved to the inner walls of the two opposite side plates 102 where the rotating rod 10 on the two opposite sides of the two first clamping seats 81 are abutted against, so that the vibrating hammer is guided to the middle position of the combined steel sheet pile, and the balls 14 rotate in the moving process of the vibrating hammer. Then, the two second clamping seats 82 are moved towards the approaching direction to respectively abut against the outer sides of the two pairs of plates 101, and the rotating rod 10 is recovered and the first clamping seats 81 are moved one by one to abut against the corresponding pairs of plates 101, so that the first clamping seats 81 and the second clamping seats 82 clamp the centers of the corresponding pairs of plates 101 together. Finally, the positions of the rotating rods 10 are adjusted to enable the rotating rods 10 on two sides of the first clamping seat 81 to respectively abut against the inner walls of the two side plates 102, and in this state, the vibrating hammer drives the combined steel sheet pile to move to the designated position and performs vibroflotation on the combined steel sheet pile.
In another embodiment, before the first clamping seat 81 is matched with the stiffening plate 2, the position of the rotating rod 10 can be adjusted first, so that the distance between two sides of the rotating rod 10 on the two sides of the first clamping seat 81 away from one another is adapted to the width of the combined steel sheet pile combined cavity 4, then the vibrating hammer is lowered, the two first clamping seats 81 clamp the stiffening plate 2 together, and then the position of the vibrating hammer is adjusted through the inclined guide of the rotating rod 10 until the vibrating hammer moves to the position that the rotating rods 10 on the two sides of the first clamping seat 81 respectively prop against the inner walls of the two opposite side plates 102.
In addition, when the vibratory hammer is required to clamp and match the rest of steel sheet piles such as a single U-shaped steel sheet pile, the movable seat 13 is adjusted to the second position, so that a single clamp opposite to the vibration center can be formed by the first clamping seats 81 in the two clamping assemblies 8 together, and the steel sheet pile is clamped by the single clamp, thereby improving the adaptability of the vibratory hammer.
The implementation principle of the vibrating hammer provided by the embodiment of the application is as follows: the combined steel sheet pile is pulled up by a crane or a mechanical arm to enable the combined steel sheet pile to be fixedly kept in a vertically extending state, and then the vibrating hammer is matched with the combined just pile, so that the movement of the vibrating hammer is adjusted to the state that two clamping assemblies 8 respectively clamp the middle parts of two pairs of plates 101 in the combined steel sheet pile.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. The pile sinking method for the combined steel sheet pile is characterized by comprising the following steps of: firstly, erecting a guide frame at a position to be driven, matching a combined steel sheet pile with the guide frame, and driving the combined steel sheet pile to drive the pile through vibration by a vibration hammer; secondly, stopping vibrating and flushing and dismantling the guide frame when the pile sinking of the combined steel sheet pile is higher than the guide frame by more than 0.5m, and hammering and pile sinking of the combined steel sheet pile by using a pile driving hammer; in the pile sinking process, if pile sinking is difficult, flushing equipment is used to flush soil body and carry out reverse water to bring out gravel in the pile so as to reduce pile sinking resistance;
the combined steel sheet pile comprises a pile body (1), a stiffening plate (2) and a locking plate (3), wherein the pile body (1) is enclosed to form a combined cavity (4) with a closed periphery and an upper opening and a lower opening, and the stiffening plate (2) is arranged at the center of the pile body (1) in the combined cavity (4); the pile body (1) is symmetrical along the stiffening plate (2), the cross section of the pile body (1) is hexagonal, the pile body (1) comprises two opposite plates (101) which are respectively opposite to the opposite sides of the stiffening plate (2) and are parallel to each other, and side plates (102) which are arranged on the opposite sides of the opposite plates (101), and one side, far away from the plates (101), of each side plate (102) is connected with the side part of the stiffening plate (2); the locking plates (3) are arranged on two opposite sides of the pile body (1) and opposite to the stiffening plates (2), and the locking plates (3) are used for locking two adjacent combined steel sheet piles.
2. A method of pile sinking composite steel sheet piles as claimed in claim 1, wherein: the height difference of adjacent combined steel plate piles is controlled within 5 m.
3. A method of pile sinking composite steel sheet piles as claimed in claim 1, wherein: and (3) calibrating the locking direction and the perpendicularity of the combined steel sheet pile when the combined steel sheet pile is sunk into the steel sheet pile for 1-2 m.
4. A method of pile sinking composite steel sheet piles as claimed in claim 1, wherein: the flushing equipment comprises a foundation frame, a flushing pipe and a flushing pipe, wherein the foundation frame is matched with the combined steel sheet pile, the flushing pipe and the flushing pipe are both arranged on the foundation frame, and soil gravel at the bottom of the combined steel sheet pile is impacted together through the flushing pipe and the flushing pipe in the pile sinking process.
5. A vibratory hammer for use in the method of claim 1, wherein: the device comprises a connecting frame (5), a vibrating device (6) and a clamping device which are connected in sequence, wherein the vibrating device (6) is used for providing vibration, and the clamping device is used for clamping the combined steel sheet pile;
The clamping device comprises a base (7), clamping assemblies (8) and driving assemblies (9), wherein the base (7) is connected to the vibrating device (6), the clamping assemblies (8) are provided with two groups and move on the base (7), and the driving assemblies (9) are used for driving the two clamping assemblies (8) to clamp the pair of plates (101) on two sides of the stiffening plate (2) respectively; each group of clamping assemblies (8) comprises a first clamping seat (81) and a second clamping seat (82), and the first clamping seat (81) is opposite to the second clamping seat (82) and is respectively used for propping against two opposite sides of the plate (101).
6. The vibratory hammer of claim 5, wherein: the two groups of clamping assemblies (8) are arranged between the two groups of clamping assemblies (8) and the second clamping seats (82), the two opposite sides of the first clamping seats (81) are symmetrically rotated with rotating rods (10) respectively, each side of the first clamping seats (81) is provided with at least two rotating rods (10), and each first clamping seat (81) is provided with a rotating assembly (11) for driving the two sides of the first clamping seats (81) to symmetrically and synchronously rotate the rotating rods (10).
7. The vibratory hammer of claim 6, wherein: the rotating rod (10) is fixedly provided with a rotating shaft (12) which is rotationally connected with the first clamping seat (81), each group of rotating components (11) comprises,
The gear (111) is coaxially and fixedly sleeved on the outer wall of the rotating shaft (12);
The racks (112) are provided with two racks which are respectively moved to two opposite sides of the first clamping seat (81), the racks (112) are meshed with the gears (111) positioned on the same side of the first clamping seat (81), the extending directions of the two racks (112) are parallel to the moving directions, and tooth surfaces of the two racks (112) are deviated from each other;
a connecting rod (113) connected between the two racks (112); and
The telescopic power source (114) is arranged on the first clamping seat (81) and matched with the connecting rod (113) so as to drive the connecting rod (113) to move along the extending direction of the rack (112).
8. The vibratory hammer of claim 6, wherein: the first clamping seat (81) deviates from the same group one face of the second clamping seat (82) is provided with a movable seat (13), the movable seat (13) deviates from the same group one face of the second clamping seat (82) and is rotated with a ball (14), and the first clamping seat (81) is provided with an adjusting piece (15) for adjusting the position of the movable seat (13), so that the movable seat (13) is located at a first position and a second position, when the movable seat (13) is located at the first position, the ball (14) exceeds the surface of the first clamping seat (81), and when the movable seat (13) is located at the second position, the ball (14) is contained in the first clamping seat (81).
9. The vibratory hammer of claim 5, wherein: the driving assembly (9) comprises a first screw (91), a second screw (92) and a two-way screw (93) which are rotationally connected to the base (7) and are parallel to each other, the first clamping seats (81) in the two groups of clamping assemblies (8) are respectively in threaded movement on the first screw (91) and the second screw (92), the two-way screw (93) is provided with a forward rotating part and a reverse rotating part with reverse threads, the second clamping seats (82) in the two groups of clamping assemblies (8) are respectively in threaded movement on the forward rotating part and the reverse rotating part, and the second clamping seats (82) in the two groups of clamping assemblies (8) are symmetrical along the center of the vibration device (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354163.3A CN117947772B (en) | 2024-03-27 | 2024-03-27 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
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| CN202410354163.3A CN117947772B (en) | 2024-03-27 | 2024-03-27 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
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| CN117947772B CN117947772B (en) | 2024-06-04 |
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| CN201187054Y (en) * | 2008-04-25 | 2009-01-28 | 中船第九设计研究院工程有限公司 | Combined metal sheet pile |
| WO2013149471A1 (en) * | 2012-04-01 | 2013-10-10 | 上海振中机械制造有限公司 | Piling method based on hole-forming by sinking double pipes and pulling inner pipe, and application thereof |
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| CN210917358U (en) * | 2019-05-29 | 2020-07-03 | 杨尧 | Vibration pile driver is used in construction of building bridge |
| CN114657941A (en) * | 2022-04-06 | 2022-06-24 | 珠海华发城市研究院有限公司 | U-shaped sheet pile support construction method |
| CN115059089A (en) * | 2022-06-15 | 2022-09-16 | 上海市政工程设计研究总院（集团）有限公司 | Combined steel sheet pile gravity type enclosure wall structure and construction method thereof |
| CN219908982U (en) * | 2023-06-03 | 2023-10-27 | 广东荔湖建设有限公司 | Steel sheet pile connection structure |
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2024
- 2024-03-27 CN CN202410354163.3A patent/CN117947772B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201187054Y (en) * | 2008-04-25 | 2009-01-28 | 中船第九设计研究院工程有限公司 | Combined metal sheet pile |
| WO2013149471A1 (en) * | 2012-04-01 | 2013-10-10 | 上海振中机械制造有限公司 | Piling method based on hole-forming by sinking double pipes and pulling inner pipe, and application thereof |
| CN207176685U (en) * | 2017-07-20 | 2018-04-03 | 中交第四公路工程局有限公司 | Steel plate sunk pile giant |
| CN210917358U (en) * | 2019-05-29 | 2020-07-03 | 杨尧 | Vibration pile driver is used in construction of building bridge |
| CN114657941A (en) * | 2022-04-06 | 2022-06-24 | 珠海华发城市研究院有限公司 | U-shaped sheet pile support construction method |
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| CN117947772B (en) | 2024-06-04 |
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