CN114941325A - Static pressure pile sinking device and method by using stratum suction on water - Google Patents
Static pressure pile sinking device and method by using stratum suction on water Download PDFInfo
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- CN114941325A CN114941325A CN202210749452.4A CN202210749452A CN114941325A CN 114941325 A CN114941325 A CN 114941325A CN 202210749452 A CN202210749452 A CN 202210749452A CN 114941325 A CN114941325 A CN 114941325A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000010276 construction Methods 0.000 claims abstract description 41
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
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- 239000003921 oil Substances 0.000 description 3
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- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a static pressure pile sinking device and a pile sinking method by utilizing stratum suction on water, wherein the device comprises a suction cylinder group, a connecting support frame, a guide rail group, a walking mechanism and a static pressure pile machine; the suction cylinder group is arranged at the bottom of the connecting support frame; the guide rail group is erected on the connecting support frame and consists of two parallel guide rail frames which are arranged at intervals; the walking mechanism comprises two track wheel sets, two hydraulic motors, two driving shaft sets and a hydraulic pump station, which are arranged on the bottom surface of the bearing platform; the static pile machine is fixed on a horizontally arranged bearing platform, and pile holes on the static pile machine and the pile holes formed on the platform are coaxially arranged; the two track wheel sets are assembled in the two guide rail frames, the hydraulic pump station is connected with the two hydraulic motors, and each hydraulic motor is connected with the front track wheel set at the same side through the driving shaft set; the device and the method achieve the purpose that the static pressure pile machine completes pile foundation construction at multiple sites in the water walking process, and have the advantages of convenience in construction, high construction speed, high efficiency, low construction cost and recyclability.
Description
Technical Field
The invention relates to the technical field of offshore engineering pile foundation construction, in particular to a device and a method for sinking a pile on water by utilizing stratum suction and static pressure.
Background
Engineering construction on water easily receives the influence of more adverse factor, like the unable accurate positioning pile foundation fast in silt stratum, the straightness that hangs down of uncontrollable pile foundation during stormy waves, can't even feed stake etc. all can lead to reducing the efficiency of construction by a wide margin. The construction sites of the pile foundations involved in the existing overwater pile foundation engineering which is frequently developed often reach tens of thousands, if the traditional method is adopted, the work is difficult to develop efficiently, the efficiency is low, and the construction period can be seriously delayed. Therefore, there is a need to design a water pile sinking device and a corresponding construction method, which are convenient and fast to construct, can accelerate the construction progress, and can reduce the construction cost.
Disclosure of Invention
The invention aims to provide a static pressure pile sinking device utilizing stratum suction on water, which has the advantages of convenience and quickness in construction, acceleration of construction progress, reduction of construction cost and recycling.
The invention also aims to provide a pile sinking method realized by adopting the above water pile sinking device utilizing stratum suction and static pressure
Therefore, the technical scheme of the invention is as follows:
a suction static pressure pile sinking device utilizing stratum suction on water comprises a suction cylinder group, a connecting support frame, a guide rail group, a walking mechanism and a static pressure pile machine which are sequentially arranged from bottom to top;
the suction cylinder group comprises a plurality of suction cylinders which are uniformly distributed at the bottom of the connecting support frame along the circumferential direction; the connecting support frame is a frame body with a rectangular transverse section;
the guide rail group is arranged on the connecting support frame in the middle and is composed of two parallel guide rail frames arranged at intervals; each guide rail frame is composed of a guide rail beam adopting a truss structure and a U-shaped groove type track; the U-shaped groove type track is fixed on the top surface of the guide rail beam, the length of the U-shaped groove type track is matched with that of the guide rail beam, and limit baffles are arranged in the side tracks at the two ends of the U-shaped groove type track;
the traveling mechanism comprises a front track wheel set, a front hydraulic motor, a front driving shaft set, a rear track wheel set, a rear hydraulic motor, a rear driving shaft set and a hydraulic pump station which are arranged on the bottom surface of a bearing platform; the bearing platform is arranged above the guide rail group in a horizontal arrangement mode, and a platform pile hole with the same size as the pile hole in the static pile machine is arranged in the middle of the bearing platform; the static pile machine is fixed on the bearing platform, and the pile hole on the static pile machine and the pile hole on the platform are coaxially arranged; the front track wheel set consists of two front track wheels, the front hydraulic motor adopts a double-shaft hydraulic motor with double driving shafts coaxially arranged, and the front driving shaft set consists of two front driving shafts; the front hydraulic motor is arranged on the bottom surface of one side of the bearing platform in the middle, two driving shafts of the front hydraulic motor are respectively connected with one ends of two front driving shafts through couplers, and the other ends of the two front driving shafts are respectively fixed in central through holes of two front track wheels; the rear track wheel set consists of two rear track wheels, the rear hydraulic motor adopts a double-shaft hydraulic motor with double driving shafts coaxially arranged, and the rear driving shaft set consists of two rear driving shafts; the rear hydraulic motor is arranged on the bottom surface of the other side of the bearing platform in the middle, two driving shafts of the rear hydraulic motor are respectively connected with one ends of two rear driving shafts through couplers, and the other ends of the two rear driving shafts are respectively fixed in central through holes of two rear track wheels; the hydraulic pump station is fixed on the bottom surface of the bearing platform and is positioned between the front hydraulic motor and the rear hydraulic motor, and the hydraulic pump station is respectively connected with the two hydraulic motors through oil way pipelines; two front track wheels of the front track wheel set and two rear track wheels of the rear track wheel set are respectively arranged in the U-shaped groove tracks on the two guide rail frames in a matched mode, so that the two track wheel sets are driven to rotate in the two U-shaped groove tracks to walk and drive the static pile pressing machine located on the bearing platform to sequentially move to the preset pile positions to sink piles.
The device comprises a plurality of pile sinking matrixes, a walking mechanism and a static pile pressing machine; wherein, the first and the second end of the pipe are connected with each other,
the pile sinking base body comprises a suction cylinder group, a connecting support frame and a guide rail group which are arranged from bottom to top in sequence; the suction cylinder group comprises a plurality of suction cylinders which are uniformly distributed at the bottom of the connecting support frame along the circumferential direction; the connecting support frame is a frame body with a rectangular transverse section; the guide rail group is arranged on the connecting support frame in the middle and is composed of two parallel guide rail frames arranged at intervals; each guide rail frame is composed of a guide rail beam adopting a truss structure and a U-shaped groove type track; the U-shaped groove type track is fixed on the top surface of the guide rail beam, the length of the U-shaped groove type track is matched with that of the guide rail beam, and limit baffles are arranged in the tracks at the end sides of the two ends of the U-shaped groove type track; the multiple pile sinking matrixes are linearly arranged, and the adjacent ends of the guide rail groups on two adjacent pile sinking matrixes are connected and fixed into a whole, so that the guide rail groups on the multiple pile sinking matrixes are sequentially connected to form a communicated long guide rail group;
the traveling mechanism comprises a front track wheel set, a front hydraulic motor, a front driving shaft set, a rear track wheel set, a rear hydraulic motor, a rear driving shaft set and a hydraulic pump station which are arranged on the bottom surface of a bearing platform; the bearing platform is horizontally arranged above the guide rail group, and a platform pile hole with the same size as the pile hole on the static pile press is arranged in the middle of the bearing platform; the static pile machine is fixed on the bearing platform, and the pile hole on the static pile machine and the pile hole on the platform are coaxially arranged; the front track wheel set consists of two front track wheels, the front hydraulic motor adopts a double-shaft hydraulic motor with double driving shafts coaxially arranged, and the front driving shaft set consists of two front driving shafts; the front hydraulic motor is arranged on the bottom surface of one side of the bearing platform in the middle, two driving shafts of the front hydraulic motor are respectively connected with one ends of two front driving shafts through couplers, and the other ends of the two front driving shafts are respectively fixed in central through holes of two front track wheels; the rear track wheel set consists of two rear track wheels, the rear hydraulic motor adopts a double-shaft hydraulic motor with double driving shafts coaxially arranged, and the rear driving shaft set consists of two rear driving shafts; the rear hydraulic motor is arranged on the bottom surface of the other side of the bearing platform in the middle, two driving shafts of the rear hydraulic motor are respectively connected with one ends of two rear driving shafts through couplers, and the other ends of the two rear driving shafts are respectively fixed in central through holes of two rear track wheels; the hydraulic pump station is fixed on the bottom surface of the bearing platform and is positioned between the front hydraulic motor and the rear hydraulic motor, and the hydraulic pump station is respectively connected with the two hydraulic motors through oil way pipelines; two rail wheels of each rail wheel set are respectively arranged in the U-shaped groove rails on the two guide rail frames in a matched manner, so that the two rail wheel sets are driven to rotate and walk in the two U-shaped groove rails and drive the static pile machines on the bearing platform to sequentially move to the preset pile positions for pile sinking.
Furthermore, a plurality of air inlet/outlet holes or water inlet/outlet holes are formed in the top surface of each suction cylinder, a guide pipe is connected to each air inlet/outlet hole or water inlet/outlet hole, and the length of each guide pipe meets the requirement that the top end of each suction cylinder group is located above the water surface after the suction cylinder group sinks to the place.
Furthermore, the connecting support frame comprises four transverse connecting beams, two groups of frame beams and four upright posts; the four upright posts are vertically arranged and are respectively fixed on the top surfaces of the four suction cylinders in a one-to-one correspondence way; the four transverse connecting beams are horizontally arranged and are respectively fixed between every two adjacent upright posts in a one-to-one correspondence manner, so that the four transverse connecting beams and the four upright posts form a frame body with a rectangular transverse section.
Furthermore, the connecting support frame also comprises four inclined supporting beams which are horizontally arranged and are respectively fixed between every two adjacent transverse connecting beams in a one-to-one correspondence manner.
Furthermore, two guide rail beam inserting grooves are symmetrically formed in the two frame beams, so that the guide rail beams are inserted and fixed in the guide rail beam inserting grooves of the two frame beams, and the top surfaces of the guide rail beams are kept flush with the top surfaces of the frame beams.
Furthermore, the walking mechanism also comprises a split type guide cylinder and a positioning mechanism; the split type guide cylinder consists of an upper guide cylinder and a lower guide cylinder; the upper guide cylinder is a conical cylinder with the inner diameter gradually reduced from top to bottom, is vertically arranged above the bearing platform, and the bottom end of the upper guide cylinder is fixed at the edge of the pile hole; the lower guide cylinder is a cylindrical cylinder, is vertically arranged below the bearing platform in a coaxial arrangement mode with the upper guide cylinder, and the top end of the lower guide cylinder is fixed at the edge of the pile hole; the positioning mechanism is arranged between the upper guide cylinder and the bearing platform or between the lower guide cylinder and the bearing platform of the operation platform and is coaxially arranged with the split guide cylinder.
Furthermore, the difference between the inner diameter of the lower guide cylinder and the diameter of the pile body is less than or equal to 200 mm.
A method for sinking piles by using stratum suction static pressure on water, which is realized by adopting the above device for sinking piles by using stratum suction static pressure on water, comprises the following steps:
s1, sequentially connecting and fixing a suction cylinder group, a connecting support frame and a guide rail group of the underwater stratum suction static pressure pile sinking device into a whole, hoisting the suction cylinder group, the connecting support frame and the guide rail group to a pile position to be constructed by using a crane ship, and enabling a projection surface of a rectangular frame enclosed by two guide rail frames and the connecting support frame in the guide rail group to cover a plurality of pile base points corresponding to the pile position to be constructed;
s2, after the suction cylinder set is stabilized by self weight entering mud, performing air suction and/or water pumping operation on each suction cylinder to adjust the two guide rail brackets to be arranged in a horizontal state;
s3, connecting and fixing a travelling mechanism of the static pressure pile sinking device utilizing stratum suction force on water and a static pressure pile driver into a whole, finely adjusting the positions of two track wheel sets on the bottom surface of the travelling mechanism according to the relative position relation between a plurality of pile foundations and two guide rail frames on the same horizontal projection surface, and after two track wheel sets of the travelling mechanism are adaptively assembled with U-shaped groove tracks on the two guide rail frames, the connecting line of the central points of a plurality of pile base points corresponding to the pile position to be constructed is superposed with the central line between the two guide rail frames on the same horizontal projection surface; then hoisting the travelling mechanism fixed with the static pile machine by using a crane ship machine and conveying the travelling mechanism to one end side of the two guide rail frames;
s4, driving a bearing platform fixed with a static pile press to move along the length direction of a guide rail frame by using a hydraulic pump station, positioning a pile foundation site by using a brake device of the static pile press, stopping the hydraulic pump station after the pile foundation site is reached, penetrating a pile foundation hoisted and fed by a crane ship into a pile hole of the static pile press, guiding by using a split type guide cylinder when the pile foundation passes through the pile hole of the bearing platform, adjusting the verticality by using a positioning mechanism, and then realizing pile foundation construction of the site by using a static pile press mode by using the static pile press mode;
s5, repeating the step S4 until the static pile press completes pile foundation construction operation of all pile foundation sites covered by the projection surface of the rectangular frame formed by the two guide rail frames and the connecting support frame;
s6, firstly, hoisting the travelling mechanism and the static pile press by using a crane ship, then carrying out air-entrapping and/or water-adding operation on each suction cylinder, enabling the suction cylinder group and the upper part connecting support frame and the guide rail group to float upwards and separate from a mud layer for adsorption, and then transporting to the next construction pile position.
Compared with the prior art, the static pile driver capable of realizing continuous pile driving by using the formation suction static pressure pile sinking device and the construction method thereof on water utilizes the rail type walking system to be arranged on the suction cylinder type fixed facility suitable for water construction, realizes the walking operation of the static pile driver on water, realizes the simultaneous covering of more pile positions in the walking process by utilizing the cooperation between the walking mechanism and the rail, further realizes the purpose of finishing the pile foundation construction of a plurality of sites at one time, has the multiple advantages of convenience in construction, high speed and efficiency in construction, low construction cost and recycling, and has good market popularization prospect.
Drawings
FIG. 1 is a schematic structural diagram of a static pressure pile sinking device using stratum suction on water according to the present invention;
FIG. 2 is a top view of the apparatus for pile sinking by suction and static pressure of stratum on water according to the present invention;
FIG. 3 is a cross-sectional view of the above-water static pile sinking device using stratum suction of the invention;
FIG. 4 is a side view of a guide rail frame of the device for pile sinking by formation suction static pressure on water;
fig. 5 is a top perspective view of the travelling mechanism of the above-water static pressure pile sinking device by using stratum suction.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, which are not intended to limit the invention in any way.
Example 1
As shown in fig. 1 to 3, the above-water formation suction static pressure pile sinking device comprises a suction cylinder group, a connecting support frame, a guide rail group, a traveling mechanism 10 and a static pressure pile machine 8 which are sequentially arranged from bottom to top; wherein, the first and the second end of the pipe are connected with each other,
the suction cylinder group comprises four suction cylinders 1 with the same specification, which are respectively arranged at four top corners at the bottom of the connecting support frame; the specification of the suction barrel 1 is determined according to the actual construction; correspondingly, for the convenience of construction, two air inlet/outlet holes or water inlet/outlet holes are arranged on the top surface of each suction barrel 1, each air inlet/outlet hole or water inlet/outlet hole is connected with a guide pipe, the length of each guide pipe is adapted to the depth of the suction barrel 1 which is expected to sink below the water surface, so that the top end of each guide pipe can be pulled above the water surface along with a connecting support frame during construction, and the operation is convenient; specifically, during actual construction, the suction tube 1 is pumped out and pumped to suck soil to increase weight, and then the connection support frame and the pile frame are driven to integrally sink under the action of gravity; after sinking to a designated position and leveling, locking the guide pipe, and keeping the pressure in the suction bucket stable for subsequent construction; when the pile driving construction is finished and the pile needs to be shifted, the suction cylinder 1 is subjected to weight reduction and floating through air filling and water adding, and meanwhile, the connecting support frame and the pile frame are driven to integrally lift up, so that the pile can be shifted.
The connecting support frame comprises four transverse connecting beams 2, four inclined supporting beams 3, two frame beams 5 and four upright posts 4; in particular, the amount of the solvent to be used,
four upright posts 4 are vertically arranged and are respectively arranged on the top surfaces of the four suction cylinders 1 in a one-to-one correspondence manner in the center, and each upright post 4 is connected and fixed with the suction cylinder 1 into a whole through a plurality of reinforcing rods which are uniformly and radially arranged along the circumferential direction and obliquely fixed between the outer wall of the bottom end of the upright post 4 and the top surface of the suction cylinder 1; a hollow cavity is axially arranged in the center of each upright post 4, so that a conduit connected with each air inlet/outlet hole or water inlet/outlet hole on the top surface of the corresponding suction barrel 1 is arranged in the hollow cavity of the corresponding upright post 4 in a penetrating way, and the top end of the conduit extends out of the outer side of the upright post 4 and is fixed; the height of the upright post 4 meets the requirement that the top end of the upright post 4 is positioned above the horizontal plane after the suction cylinder group sinks to the designated position, and simultaneously, the top end of each conduit is also ensured to be positioned above the water surface;
the four transverse connecting beams 2 are horizontally arranged, two ends of each transverse connecting beam are respectively fixed between every two adjacent upright posts 4 in a one-to-one correspondence mode, and the specific fixing position is on the lower side wall of each upright post 4; the four transverse connecting beams 2 can have the same length, so that a frame body with a square transverse section is formed by the transverse connecting beams and the four upright posts 4, or the transverse connecting beams 2 with different lengths can be manufactured according to the length of the pile frame above the transverse connecting beams, so that a frame body with a rectangular transverse section is formed by the transverse connecting beams and the four upright posts 4, namely, the length of the long side of the transverse section of the frame body is adapted to the length of the pile frame above the transverse connecting beams; meanwhile, the lengths of the parking sling 10 and the transverse connecting beam 2 at one side of the piling ship also meet the parking requirement of the ship body so as to shorten the hoisting distance of the pile foundation;
the four inclined supporting beams 3 are horizontally arranged, and two ends of each inclined supporting beam are respectively fixed on every two adjacent transverse connecting beams 2 in a one-to-one correspondence manner;
the two frame beams 5 are symmetrically arranged, and two ends of each frame beam 5 are respectively fixed on the top side walls of the upright columns 4 at two sides of the frame beam; since the guide rail set is erected on the two frame beams 5, in order to ensure a certain supporting function, the two frame beams 5 may be in the form of a truss or in the form of a plate to ensure a corresponding structural strength.
The guide rail group is centrally arranged on the two frame beams 5 and consists of two parallel guide rail brackets 7 which are arranged at intervals, and the length of the two guide rail brackets is larger than the distance between the two frame beams 5, so that the two sides of each guide rail bracket 7 are respectively fixed on the two frame beams 5, and the length of the guide rail bracket 7 positioned on the outer side of the frame beam 5 is properly increased within the structure allowable range of the frame beam 5, so as to increase the walking range of the guide rail bracket 7; wherein the content of the first and second substances,
as shown in fig. 4, each rail frame 7 is constituted by a rail beam 7a and a U-shaped channel rail 7 b; the guide rail beams 7a are of a truss structure, correspondingly, two guide rail beam inserting grooves are symmetrically formed in the two frame beams 5, so that the guide rail beams 7a are inserted and welded in the guide rail beam inserting grooves of the two frame beams 5, and the top surfaces of the guide rail beams 7a are kept flush with the top surfaces of the frame beams 5;
the U-shaped groove track 7b is fixed on the top surface of the guide rail beam 7a, the length of the U-shaped groove track is consistent with that of the guide rail beam 7a, and limit baffles are fixed in the tracks at the end sides of the two ends of the U-shaped groove track 7b to limit the movement of track wheels running in the tracks; preferably, a shock-absorbing rubber pad is arranged between the U-shaped groove track 7b and the guide rail beam 7a at intervals along the length direction of the U-shaped groove track and the guide rail beam;
as shown in fig. 5, the traveling mechanism 10 includes a front track wheel set 10a, a front hydraulic motor 10b, a front driving shaft set 10c, a rear track wheel set 10d, a rear hydraulic motor 10e, a rear driving shaft set 10f, a hydraulic pump station 10g, a split type guide cylinder 10h and a positioning mechanism 10i, which are arranged on the bottom surface of a bearing platform 11; wherein the content of the first and second substances,
the bearing platform 11 is horizontally arranged above the guide rail group, and a platform pile hole with the same size as the pile hole on the static pile machine 8 is arranged in the middle of the bearing platform; the static pile press 8 is fixed on the bearing platform 11 by welding, bolting and the like, and the pile hole on the static pile press 8 and the pile hole of the platform are coaxially arranged;
the front track wheel set 10a is composed of two front track wheels, the front hydraulic motor 10b is a double-shaft hydraulic motor with double drive shafts coaxially arranged, and the front drive shaft set 10c is composed of two front drive shafts; the front hydraulic motor 10b is arranged on the bottom surface of one side of the bearing platform 11 in the middle, two driving shafts of the front hydraulic motor are respectively connected with one ends of two front driving shafts through couplers, the other ends of the two front driving shafts are respectively fixed in central through holes of two front track wheels, and the distance between the two front track wheels is matched with the distance between the two U-shaped groove tracks 7b, so that the front hydraulic motor 10b drives the two front track wheels to synchronously rotate clockwise or synchronously rotate anticlockwise;
the rear track wheel group 10d is composed of two rear track wheels, the rear hydraulic motor 10e adopts a double-shaft hydraulic motor with double driving shafts coaxially arranged, and the rear driving shaft group 10f is composed of two rear driving shafts; the rear hydraulic motor 10e is arranged on the bottom surface of the other side of the bearing platform 11 in the middle, two driving shafts of the rear hydraulic motor are respectively connected with one ends of the two rear driving shafts through couplers, the other ends of the two rear driving shafts are respectively fixed in central through holes of the two rear track wheels, and the distance between the two rear track wheels is matched with the distance between the two U-shaped groove tracks 7b, so that the rear hydraulic motor 10b drives the two rear track wheels to synchronously rotate clockwise or synchronously rotate anticlockwise;
the hydraulic pump station 10g is fixed on the bottom surface of the bearing platform 11 and is positioned between the front hydraulic motor 10b and the rear hydraulic motor 10b, and the hydraulic pump station 10g is respectively connected with the two hydraulic motors through oil way pipelines so as to synchronously pump hydraulic oil to the two hydraulic motors and control the hydraulic pump station to drive the front track wheel set 10a and the rear track wheel set 10d to synchronously rotate clockwise or synchronously rotate anticlockwise;
two front rail wheels of the front rail wheel set 10a are respectively arranged in the two U-shaped groove rails 7b in a matching manner, correspondingly, two rear rail wheels of the rear rail wheel set 10d are respectively arranged in the two U-shaped groove rails 7b in a matching manner, so that a hydraulic pump station 10g drives two hydraulic motors to synchronously bring the front rail wheel set 10a and the rear rail wheel set 10d to synchronously rotate clockwise or anticlockwise in the two U-shaped groove rails 7b, further, the static pile press 8 on the bearing platform is driven to sequentially move to each preset pile position along the length direction of the rail set, a pile position point is positioned by using a braking device of the static pile press 8, the hydraulic pump station 10g is stopped after the pile position point reaches the pile position point, after the pile construction of the pile position point is completed by the static pile press 8, the bearing platform is braked by using the hydraulic pump station 10g, so that the pile press 8 moves to the next pile position point and pile sinking operation is repeated, and (4) pile sinking construction operation on all pile foundation sites in the linear direction is completed.
The split type guide cylinder 10h is composed of an upper guide cylinder and a lower guide cylinder; the upper guide cylinder is a conical cylinder with the inner diameter gradually reduced from top to bottom, is vertically arranged above the bearing platform 11, and the bottom end of the upper guide cylinder is fixed at the edge of the pile hole; the lower guide cylinder is a cylindrical cylinder, is vertically arranged below the bearing platform 11 in a coaxial arrangement mode with the upper guide cylinder, and the top end of the lower guide cylinder is fixed at the edge of the pile hole;
as a preferred technical scheme of the embodiment, the difference between the inner diameter of the lower guide cylinder and the diameter of the pile body is less than or equal to 200mm, so that a larger perpendicularity error cannot be generated when the pile body 9 is inserted into the lower guide cylinder; the minimum inner diameter of the upper guide cylinder is consistent with the inner diameter of the lower guide cylinder or is larger than the inner diameter of the lower guide cylinder.
The positioning mechanism 10i is arranged between the upper guide cylinder and the bearing platform 11 or between the lower guide cylinder and the bearing platform 11 of the operation platform and is coaxially arranged with the split guide cylinder 10 h; specifically, the positioning mechanism 10i adopts an annular pile-embracing clamping device which is arranged between the upper guide cylinder and the bearing platform 11; the annular pile-embracing clamping device is composed of an annular body and four jacks, wherein the annular body is uniformly provided with four radial through holes along the circumferential direction, and the four jacks are radially arranged in the four radial through holes in a mode that push rods of the jacks face the direction of the circle center of the annular body; when the pile driving device is used, the push rods of the four jacks synchronously move towards the center of the annular structure, so that the push rods of the four jacks are tightly pressed against the side wall of the pile body 9 to clamp the pile body; wherein, the jack can also be replaced by a lead screw with adjustable length mechanism energy; in addition, when the upper guide cylinder, the positioning mechanism 10i, the bearing platform 11 and the lower guide cylinder are fixedly connected, a welded fixed connection mode can be adopted, and any detachable connection mode such as riveting and bolts can be adopted, so that the guide frame is convenient to recycle.
As another alternative technical solution of this embodiment 1, when there are a large number of pile foundation points in the linear direction, the above-water formation suction static pressure pile-sinking apparatus can set a plurality of pile sinking bases formed by a suction cylinder group, a connection support frame and a guide rail group in the linear direction, and cooperate with a set of traveling mechanism 10 and static pressure pile driver 8, that is, a plurality of pile sinking bases formed by a suction cylinder group, a connection support frame and a guide rail group are linearly arranged in a row along the extending direction of a pile base point, and two guide rail groups on two adjacent pile sinking bases are connected and fixed into a whole by a fixing member, so as to form a long rail for the traveling mechanism 10 to carry out linear motion with the static pressure pile driver 8, thereby achieving the purpose of completing pile foundation construction at more points on the same straight line during the above-water traveling of the static pressure pile driver. In the actual construction process, pile sinking operation and construction of a plurality of pile sinking base bodies to be operated can be carried out synchronously on the completed pile sinking base bodies, so that the working efficiency is further improved.
Example 2
An overwater stratum suction static pressure pile sinking method realized by the overwater stratum suction static pressure pile sinking device in the embodiment 1 comprises the following steps:
s1, sequentially connecting and fixing a suction cylinder group, a connecting support frame and a guide rail group of the underwater stratum suction static pressure pile sinking device into a whole, hoisting the suction cylinder group, the connecting support frame and the guide rail group to a pile position to be constructed by using a crane ship, and enabling a projection surface of a rectangular frame enclosed by two guide rail frames 7 in the guide rail group and the connecting support frame to cover a plurality of pile base points corresponding to the pile position to be constructed;
s2, after the suction cylinder set is stabilized by self weight entering mud, performing air suction and/or water pumping operation on each suction cylinder 1 to adjust the two guide rail brackets 7 to be arranged in a horizontal state;
s3, connecting and fixing the travelling mechanism 10 of the water-borne stratum suction static pressure pile sinking device and the static pressure pile driver 8 into a whole, and finely adjusting the positions of two track wheel sets on the bottom surface of the travelling mechanism 10 according to the relative position relation of a plurality of pile foundation points and two guide rail brackets 7 on the same horizontal projection surface, so that after two track wheel sets of the travelling mechanism 10 are adaptively assembled with the U-shaped groove tracks 7b on the two guide rail brackets 7, the central point connecting line of a plurality of pile base points corresponding to the pile position to be constructed coincides with the central line between the two guide rail brackets 7 on the same horizontal projection surface; then, hoisting a travelling mechanism 10 fixed with a static pile machine 8 by using a crane ship machine and conveying the travelling mechanism to one end side of the two guide rail frames 7;
s4, driving a bearing platform fixed with a static pile press 8 to move along the length direction of a guide rail frame 7 by using a hydraulic pump station 10g, positioning a pile foundation site by using a brake device of the static pile press 8, stopping the hydraulic pump station 10g after the pile foundation site is reached, penetrating a pile foundation hoisted and sent by a crane ship into a pile hole of the static pile press 8, guiding by using a split type guide cylinder 10h when the pile foundation passes through the pile hole of the bearing platform, adjusting the verticality by using a positioning mechanism 10i, and then realizing pile foundation construction of the site by using a static pile press mode by using the static pile press 8;
s5, repeating the step S4 until the static pile press 8 completes pile foundation construction operation of all pile foundation sites covered by the projection surface of the rectangular frame formed by the two guide rail frames 7 and the connecting support frame;
s6, hoisting the walking mechanism 10 and the static pile press 8 by a crane ship, aerating and/or watering each suction cylinder 1 to make the suction cylinder group and the upper part connecting support frame and guide rail group float upwards and separate from the mud layer for adsorption, and then transporting to the next construction pile position.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A suction static pressure pile sinking device for utilizing stratum suction on water is characterized by comprising a suction cylinder group, a connecting support frame, a guide rail group, a walking mechanism (10) and a static pressure pile machine (8) which are sequentially arranged from bottom to top;
the suction cylinder group comprises a plurality of suction cylinders (1) which are uniformly distributed at the bottom of the connecting support frame along the circumferential direction; the connecting support frame is a frame body with a rectangular transverse section;
the guide rail group is erected on the connecting support frame in the middle and consists of two guide rail frames (7) which are arranged in parallel at intervals; each guide rail frame (7) is composed of a guide rail beam (7a) adopting a truss structure and a U-shaped groove type track (7 b); the U-shaped groove type track (7b) is fixed on the top surface of the guide rail beam (7a), the length of the U-shaped groove type track is matched with that of the guide rail beam (7a), and limit baffles are arranged in the side tracks at the two ends of the U-shaped groove type track (7 b);
the traveling mechanism (10) comprises a front track wheel set (10a), a front hydraulic motor (10b), a front driving shaft set (10c), a rear track wheel set (10d), a rear hydraulic motor (10e), a rear driving shaft set (10f) and a hydraulic pump station (10g) which are arranged on the bottom surface of a bearing platform (11); the bearing platform (11) is horizontally arranged above the guide rail group, and a platform pile hole with the same size as the pile hole on the static pile machine (8) is arranged in the middle of the bearing platform; the static pile press (8) is fixed on the bearing platform (11), and the pile hole on the static pile press (8) and the pile hole of the platform are coaxially arranged; the front track wheel set (10a) is composed of two front track wheels, the front hydraulic motor (10b) adopts a double-shaft hydraulic motor with double coaxial drive shafts, and the front drive shaft set (10c) is composed of two front drive shafts; the front hydraulic motor (10b) is arranged on the bottom surface of one side of the bearing platform (11) in the middle, two driving shafts of the front hydraulic motor are respectively connected with one ends of two front driving shafts through a coupler, and the other ends of the two front driving shafts are respectively fixed in central through holes of two front rail wheels; the rear track wheel group (10d) is composed of two rear track wheels, the rear hydraulic motor (10e) adopts a double-shaft hydraulic motor with double coaxial driving shafts, and the rear driving shaft group (10f) is composed of two rear driving shafts; the rear hydraulic motor (10e) is arranged on the bottom surface of the other side of the bearing platform (11) in the middle, two driving shafts of the rear hydraulic motor are respectively connected with one ends of two rear driving shafts through a coupler, and the other ends of the two rear driving shafts are respectively fixed in central through holes of two rear track wheels; the hydraulic pump station (10g) is fixed on the bottom surface of the bearing platform (11) and is positioned between the front hydraulic motor (10b) and the rear hydraulic motor (10b), and the hydraulic pump station (10g) is respectively connected with the two hydraulic motors through oil pipelines; two rail wheels of each rail wheel set are respectively arranged in U-shaped groove rails (7b) on two guide rail frames (7) in a matched manner, so that the two rail wheel sets are driven to rotate in the two U-shaped groove rails (7b) to walk and drive static pile machines (8) positioned on a bearing platform (11) to sequentially move to preset pile positions for pile sinking.
2. A static pressure pile sinking device utilizing stratum suction on water is characterized by comprising a plurality of pile sinking matrixes, a walking mechanism (10) and a static pressure pile machine (8); wherein the content of the first and second substances,
the pile sinking base body comprises a suction cylinder group, a connecting support frame and a guide rail group which are arranged from bottom to top in sequence; the suction cylinder group comprises a plurality of suction cylinders (1) which are uniformly distributed at the bottom of the connecting support frame along the circumferential direction; the connecting support frame is a frame body with a rectangular transverse section; the guide rail group is erected on the connecting support frame in the middle and consists of two guide rail frames (7) which are arranged in parallel at intervals; each guide rail frame (7) is composed of a guide rail beam (7a) adopting a truss structure and a U-shaped groove track (7 b); the U-shaped groove track (7b) is fixed on the top surface of the guide rail beam (7a), the length of the U-shaped groove track is matched with that of the guide rail beam (7a), and limit baffles are arranged in the tracks at the end sides of the two ends of the U-shaped groove track (7 b); the multiple pile sinking base bodies are linearly arranged, and the adjacent ends of the guide rail groups on two adjacent pile sinking base bodies are connected and fixed into a whole, so that the guide rail groups on the multiple pile sinking base bodies are sequentially connected to form a communicated long guide rail group;
the traveling mechanism (10) comprises a front track wheel set (10a), a front hydraulic motor (10b), a front driving shaft set (10c), a rear track wheel set (10d), a rear hydraulic motor (10e), a rear driving shaft set (10f) and a hydraulic pump station (10g) which are arranged on the bottom surface of a bearing platform (11); the bearing platform (11) is horizontally arranged above the guide rail group, and a platform pile hole with the same size as the pile hole on the static pile machine (8) is arranged in the middle of the bearing platform; the static pile press (8) is fixed on the bearing platform (11), and the pile hole on the static pile press (8) and the pile hole on the platform are coaxially arranged; the front rail wheel set (10a) is composed of two front rail wheels, the front hydraulic motor (10b) adopts a double-shaft hydraulic motor with double coaxial driving shafts, and the front driving shaft set (10c) is composed of two front driving shafts; the front hydraulic motor (10b) is arranged on the bottom surface of one side of the bearing platform (11) in the middle, two driving shafts of the front hydraulic motor are respectively connected with one ends of two front driving shafts through a coupler, and the other ends of the two front driving shafts are respectively fixed in central through holes of two front rail wheels; the rear track wheel set (10d) is composed of two rear track wheels, the rear hydraulic motor (10e) adopts a double-shaft hydraulic motor with double coaxial driving shafts, and the rear driving shaft set (10f) is composed of two rear driving shafts; the rear hydraulic motor (10e) is arranged on the bottom surface of the other side of the bearing platform (11) in the middle, two driving shafts of the rear hydraulic motor are respectively connected with one ends of two rear driving shafts through a coupler, and the other ends of the two rear driving shafts are respectively fixed in central through holes of two rear track wheels; the hydraulic pump station (10g) is fixed on the bottom surface of the bearing platform (11) and is positioned between the front hydraulic motor (10b) and the rear hydraulic motor (10b), and the hydraulic pump station (10g) is respectively connected with the two hydraulic motors through oil pipelines; two rail wheels of each rail wheel set are respectively arranged in U-shaped groove rails (7b) on two guide rail frames (7) in a matched manner, so that the two rail wheel sets are driven to rotate in the two U-shaped groove rails (7b) to walk and drive static pile machines (8) positioned on a bearing platform (11) to sequentially move to preset pile positions for pile sinking.
3. The above-water formation suction static pressure pile driving device according to claim 1 or 2, wherein a plurality of air inlet/outlet holes or water inlet/outlet holes are formed in the top surface of each suction cylinder (1), and each air inlet/outlet hole or water inlet/outlet hole is connected with a guide pipe, the length of each guide pipe is such that the top end of each guide pipe is located above the water surface after the suction cylinder set is sunk to the position.
4. The above-water stratum suction static pressure pile sinking device used according to claim 1 or 2, wherein the connecting support frame comprises four transverse connecting beams (2), two groups of frame beams (5) and four upright posts (4); the four upright posts (4) are vertically arranged and are respectively fixed on the top surfaces of the four suction cylinders 1 in a centered manner in a one-to-one correspondence manner; the four transverse connecting beams (2) are horizontally arranged and are respectively fixed between every two adjacent upright posts (4) in a one-to-one correspondence manner, so that the four transverse connecting beams and the four upright posts (4) form a frame body with a rectangular transverse section.
5. The above-water formation suction static pressure pile driving device according to claim 4, wherein the connecting support frame further comprises four horizontally arranged raking beams (3) which are respectively fixed between every two adjacent transverse connecting beams (2) in a one-to-one correspondence manner.
6. The above-water formation suction static pressure pile sinking device according to claim 4, wherein two guide rail beam insertion grooves are symmetrically formed in the two frame beams (5), so that the guide rail beams (7a) are inserted and fixed in the guide rail beam insertion grooves of the two frame beams (5), and the top surfaces of the guide rail beams (7a) are kept flush with the top surfaces of the frame beams (5).
7. The above-water formation suction static pressure pile sinking device according to claim 1 or 2, wherein the walking mechanism (10) further comprises a split type guide cylinder (10h) and a positioning mechanism (10 i); wherein, the split guide cylinder (10h) is composed of an upper guide cylinder and a lower guide cylinder; the upper guide cylinder is a conical cylinder with the inner diameter gradually reduced from top to bottom, is vertically arranged above the bearing platform (11), and the bottom end of the upper guide cylinder is fixed at the edge of the pile hole; the lower guide cylinder is a cylindrical cylinder, is vertically arranged below the bearing platform (11) in a coaxial arrangement mode with the upper guide cylinder, and the top end of the lower guide cylinder is fixed at the edge of the pile hole; the positioning mechanism (10i) is arranged between the upper guide cylinder and the bearing platform (11) or between the lower guide cylinder and the bearing platform (11) of the operation platform and is coaxially arranged with the split guide cylinder (10 h).
8. The above-water stratum suction static pressure pile sinking device used according to claim 7, wherein the difference between the inner diameter of the lower guide cylinder and the diameter of the pile body (9) is less than or equal to 200 mm.
9. A pile sinking method implemented by using the above-water stratum suction static pressure pile sinking device according to any one of claims 1 to 7, which is characterized by comprising the following steps of:
s1, sequentially connecting and fixing a suction cylinder group, a connecting support frame and a guide rail group of the underwater stratum suction static pressure pile sinking device into a whole, hoisting the suction cylinder group, the connecting support frame and the guide rail group to a pile position to be constructed by using a crane ship, and enabling a projection surface of a rectangular frame enclosed by two guide rail frames (7) in the guide rail group and the connecting support frame to cover a plurality of pile base points corresponding to the pile position to be constructed;
s2, after the suction cylinder set is stabilized by self weight entering mud, performing air suction and/or water pumping operation on each suction cylinder (1) to adjust the two guide rail brackets (7) to be arranged in a horizontal state;
s3, connecting and fixing a travelling mechanism (10) of a static pile sinking device utilizing stratum suction force on water and a static pile machine (8) into a whole, finely adjusting the positions of two track wheel sets on the bottom surface of the travelling mechanism (10) according to the relative position relation of a plurality of pile foundation points and two guide rail brackets (7) on the same horizontal projection surface, and after two groups of track wheel sets of the travelling mechanism (10) are adaptively assembled with U-shaped groove type tracks (7b) on the two guide rail brackets (7), the central point connecting line of a plurality of pile base points corresponding to the pile position to be constructed and the central line between the two guide rail brackets (7) are superposed on the same horizontal projection surface; then, hoisting a travelling mechanism (10) fixed with a static pressure pile machine (8) by using a crane ship and conveying the travelling mechanism to one end side of two guide rail frames (7);
s4, driving a bearing platform fixed with a static pile press (8) to move along the length direction of a guide rail frame (7) by using a hydraulic pump station (10g), positioning a pile foundation site by using a brake device of the static pile press (8), stopping the hydraulic pump station (10g) after the pile foundation site is reached, penetrating a pile foundation hoisted and sent by a crane into a pile hole of the static pile press (8), guiding by using a split type guide cylinder (10h) when the pile foundation passes through the pile hole of the bearing platform, adjusting the verticality by using a positioning mechanism (10i), and then realizing pile foundation construction of the site by using a static pile press mode by using the static pile press (8);
s5, repeating the step S4 until the static pile press (8) completes pile foundation construction operation of all pile foundation sites covered by the projection surface of the rectangular frame formed by the two guide rail frames (7) and the connecting support frame;
s6, firstly, the travelling mechanism (10) and the static pressure pile machine (8) are hoisted by the crane, then air filling and/or water adding operation is carried out on each suction cylinder (1), so that the suction cylinder group and the upper part connecting support frame and the guide rail group float upwards and are separated from a mud layer for adsorption, and then the suction cylinder group is transported to the next construction pile position.
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| CN202210749452.4A CN114941325A (en) | 2022-06-28 | 2022-06-28 | Static pressure pile sinking device and method by using stratum suction on water |
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| CN202210749452.4A CN114941325A (en) | 2022-06-28 | 2022-06-28 | Static pressure pile sinking device and method by using stratum suction on water |
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