WO2018000409A1 - 桩顶支撑步履式移动打桩平台 - Google Patents

桩顶支撑步履式移动打桩平台 Download PDF

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Publication number
WO2018000409A1
WO2018000409A1 PCT/CN2016/088088 CN2016088088W WO2018000409A1 WO 2018000409 A1 WO2018000409 A1 WO 2018000409A1 CN 2016088088 W CN2016088088 W CN 2016088088W WO 2018000409 A1 WO2018000409 A1 WO 2018000409A1
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WIPO (PCT)
Prior art keywords
locking
pile
frame
positioning
platform
Prior art date
Application number
PCT/CN2016/088088
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English (en)
French (fr)
Inventor
张鸿
谢道平
汪文霞
郭强
薛志武
封有德
茅兵海
冯先导
张晓平
侯晓勤
刘益平
张梦元
李曾曾
Original Assignee
中交第二航务工程局有限公司
中交武汉港湾工程设计研究院有限公司
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Application filed by 中交第二航务工程局有限公司, 中交武汉港湾工程设计研究院有限公司 filed Critical 中交第二航务工程局有限公司
Priority to PCT/CN2016/088088 priority Critical patent/WO2018000409A1/zh
Publication of WO2018000409A1 publication Critical patent/WO2018000409A1/zh

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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
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction

Definitions

  • the invention relates to the technical field of pile foundation construction equipment, in particular to a pile top support walking type mobile piling platform.
  • the construction of the pile foundation in the water is conventionally carried out by using a self-lifting platform or a fixed working platform as a foundation for the application of the engineering pile.
  • the self-elevating platform can adapt to piling operations in different water depths and wave environments, but it is expensive and requires professional operation. It is greatly affected by the wave period when shifting, and it takes a long time to move and position, and is affected by the sea environment.
  • the positioning accuracy is not high every time the position is changed, and the work efficiency is relatively low; when the engineering pile is applied based on the fixed platform, the positioning accuracy is high, and it is very convenient to perform position conversion within the platform range, but the large-area fixed platform
  • the erection cost is high, the scope of application is narrow, and only the piling work within the platform can be carried out, and the environmental adaptability is poor.
  • it is only used in the inland river and lake environment, and it is impossible to set up a platform in a harsh environment such as the open sea. It also has a greater impact on the environment.
  • the object of the present invention is to solve the deficiencies of the above background art, and provide a pile top support walking type mobile piling platform, which is moved by a push-pull positioning device, and is subjected to piling construction operation through a large-sized frame guide frame, which can satisfy The construction requirements of complex environments are highly practical.
  • the pile top supporting walking type mobile piling platform designed by the invention comprises a pile top pushing positioning device disposed on the top of the engineering pile, and the pile top pushing positioning device is provided with a bearing platform, the bearing capacity
  • the platform is provided with a working platform, and the front part of the working platform is provided with a large-row guide frame, and the left and right sides of the load-bearing platform are respectively provided with a small-row guide frame, and the front and rear sides of the load-bearing platform are A mounting platform is provided at a corresponding position of the engineering pile.
  • the load-bearing platform comprises a plurality of main longitudinal beams arranged in parallel, and a plurality of transverse beams perpendicular to the main longitudinal beams are fixedly connected between the main longitudinal beams, and a rear end portion of the main longitudinal beams is fixed with The beam is connected to the beam in parallel, and the installation beam is fixed on the contact beam, and the front end of the main stringer is also fixed with a mounting platform.
  • a middle of the two main longitudinal beams of the left and right sides of the load-bearing platform are respectively provided with a guiding support frame, and the small-row guide frame is disposed on the guiding support frame.
  • the large-row guide frame comprises a large row of brackets, the top of which is fixed with a large-row guide rail, and the bottom is fixed with a large-row frame support frame, and the large-row frame guide rail Set a slider on the slider
  • the cylinder shaft of the traverse cylinder is fixedly connected to the cylinder shaft of the traverse cylinder, and the cylinder shaft of the other side of the traverse cylinder is fixedly connected to the large gantry guide frame body, and the top of the large gantry guide frame body is provided with a large gantry guide support frame.
  • the large-row guide support frame is disposed in the large-row guide rail, and the bottom of the large-row guide frame body is disposed in the large-row frame support frame.
  • the pile top pushing positioning device comprises a pile top positioning seat, the bottom part of the pile top positioning seat is provided with a positioning groove matched with the top of the engineering pile pile; and the pile top positioning seat is provided with a support frame, A lifting adjustment device is connected between the support frame and the pile top positioning seat; a three-way jack and a locking device fixedly coupled with the bottom plate of the load-bearing platform are fixed on the top plate of the support frame.
  • the lifting and adjusting device comprises a threaded sleeve disposed on the top of the pile top positioning seat, the threaded sleeve is internally threaded with an inner and outer threaded sleeve, and the inner and outer threaded sleeve is internally threaded with a screw, the screw top Fixed in the support frame.
  • a center of the top of the screw is provided with a positioning through hole, and a front and rear sides of the positioning through hole are respectively provided with a screw positioning plate, and the positioning between the two screw positioning plates and the positioning hole of the screw is connected.
  • the pin positioning plate is fixed in the support frame; the top of the lifting and adjusting device is further fixed with a ball joint nut, the ball joint nut is fitted with a ball joint bolt, and the ball joint bolt is connected with a ball joint at the top The ball hinge is pressed against the bottom of the support frame.
  • a locking device is symmetrically fixed on both sides of the top plate of the support frame; the locking device includes a locking bracket, and a locking adjustment plate is fixedly coupled to the top of the locking bracket, and the locking adjustment plate is fixed A longitudinal threaded hole is formed, and the longitudinal threaded hole is fitted with a locking bolt for pressing the bottom plate of the load bearing platform.
  • the locking bracket comprises two opposite rocker plates, the upper part of the two rocker plates is provided with a connecting short shaft, and the connecting short shaft is disposed in the locking seat, the locking seat
  • the top of the locking fixing plate is provided with a locking supporting plate; the rear portion of the locking adjusting plate is supported on the locking supporting plate, and the bottom surface of the locking adjusting plate is A support sleeve is disposed on each side of the middle portion, and a longitudinal adjustment bolt is disposed on each of two sides of the rear portion of the locking and fixing plate, and the longitudinal adjustment bolt is disposed in the support sleeve, and the top of the longitudinal adjustment bolt is worn.
  • the over-locking adjustment plate is connected with a lock nut, and the lock bolt is disposed on both sides of the front part of the lock adjustment plate.
  • the locking adjustment plate has long holes on both sides thereof, and the top of the locking bolt passes through the long hole connection lock nut, and the inner diameter of the support sleeve is larger than the diameter of the longitudinal adjustment bolt, A reinforcing plate is fixedly connected between the two sides of the rear portion of the locking fixing plate and the locking seat.
  • the utility model has the beneficial effects that: the pile top pushing positioning device is installed on the pile top, the bearing platform is supported on the jacking positioning device, and the stepping push forward movement of the platform is realized by the three-way jack. Since the platform is supported on the steel pipe piles that have been constructed, the initial positioning of the platform can be automatically completed.
  • the lifting and adjusting device, the three-way jack and the guide frame of the large-sized frame can work together quickly and accurately, and the transverse movement of the guide frame can be achieved. It can realize the construction of steel pipe piles in the whole platform, through installation
  • the platform can quickly realize the installation and dismantling of the pile top pushing and positioning device and the subsequent construction of the pile top.
  • the platform movement operation is simple, greatly improving the construction efficiency, reducing the labor labor, and having good practicability and market application value.
  • Figure 1 is a plan view of the piling platform of the present invention
  • Figure 2 is a plan view of the load bearing platform of the present invention.
  • FIG. 3 is a schematic view showing the installation structure of the small-row guide frame of the present invention.
  • FIG. 4 is a schematic view showing the installation structure of the large-row guide frame in the present invention.
  • FIG. 5 is a schematic structural view showing the positioning of the pile top pushing positioning device and the load bearing platform bottom plate according to the present invention
  • Figure 6 is a front elevational view of the pile top pushing and positioning device of the present invention.
  • Figure 7 is a schematic view showing the structure of a screw disposed in a support frame according to the present invention.
  • Figure 8 is a side view of the three-way jack of the present invention.
  • Figure 9 is a side view of the rocker arm of the present invention.
  • Figure 10 is a plan view of the three-way jack in the present invention.
  • Figure 11 is a plan view of the pile top positioning seat of the present invention.
  • Figure 12 is a flow chart 1 of the piling platform of the present invention.
  • Figure 13 is a flow chart 2 of the piling platform of the present invention.
  • Figure 14 is a flow chart 3 of the piling platform of the present invention.
  • Figure 15 is a flow chart 4 of the piling platform of the present invention.
  • Figure 16 is a side view of the positioning structure of the large-row guide frame of the present invention.
  • FIG. 17 is a schematic structural view of a top positioning portion of a large-row guide frame according to the present invention.
  • FIG. 18 is a schematic structural view of a bottom positioning portion of a large bay guide frame according to the present invention.
  • 101 prile top positioning seat
  • 101.1 thread sleeve positioning hole
  • 101.2 ball joint bolt positioning hole
  • 102 engineering pile
  • 103 positioning groove
  • 104 support frame
  • 105 lifting adjustment device
  • 105.1 thread sleeve Tube
  • 105.2 inner and outer threaded casing
  • 105.3 screw
  • 106 three-way jack
  • 106.1 main top
  • 106.2 longitudinal cylinder
  • 106.3 traverse cylinder
  • 107 load bearing platform
  • 108 locking device
  • 108.1 lock Tight adjustment plate
  • 108.2 locking seat
  • 108.3 locking fixing plate
  • 108.4 locking support plate
  • 108.5 supporting sleeve
  • 108.6 longitudinal adjusting bolt
  • 108.7 locking nut
  • 108.8 locking bolt
  • 108.9 Reinforcement plate
  • 109-rubber ring 110-positioning through hole
  • 200 Working platform
  • 201 large row frame guide frame
  • 201.1 large row frame bracket
  • 201.2 large row frame guide Orbit
  • 201.3 sliding
  • 201.4 traverse cylinder
  • 201.5 large row frame guide frame
  • 201.6 large row frame guide support frame
  • 201.7 large row frame frame support frame
  • 202 small row frame guide frame
  • 203 Installation platform
  • 204 Tie.
  • the pile top support walking type mobile piling platform shown in FIG. 1-4 includes a pile top pushing and positioning device fixed on the top of the steel pipe pile 102, and the pile top pushing positioning device is fixed with a bearing platform 107, and the bearing platform 107
  • the work platform 200 is fixed, and the front part of the work platform 200 is fixed with a large rack guide frame 201.
  • the left and right sides of the load-bearing platform 107 are respectively fixed with a small rack guide frame 202, and the front and rear sides of the load-bearing platform 107 are respectively connected with the steel pipe.
  • a mounting platform 203 is fixed at a corresponding position of the pile 102.
  • the load-bearing platform 107 comprises a plurality of main longitudinal beams 107.1 arranged in parallel, and a plurality of transverse beams 107.2 perpendicular to the main longitudinal beams 107.1 are fixedly connected between the main longitudinal beams 107.1, and the rear end portions of the main longitudinal beams 107.1 are attached.
  • a contact beam 107.3 parallel to the beam 107.2 is fixed, and a mounting platform 203 is fixed to the contact beam 107.3, and a mounting platform 203 is also fixed to the front end of the main longitudinal beam 107.1.
  • the main longitudinal beam 107.1 is supported on the pile top pushing and positioning device.
  • a guide support frame 107.4 is fixed to the middle portions of the two left and right side main longitudinal beams 107.1 of the load-bearing platform 107, and the small-row guide frame 202 is fixed on the guide support frame 107.4.
  • the guide support frame 107.4 reinforces the structural strength of the small bay guide frame 202.
  • the large row frame guide frame 201 includes a large row frame bracket 201.1.
  • the top of the large row frame bracket 201.1 is fixed with a large row frame guiding track 201.2, and a large row frame frame supporting frame is fixed at the bottom.
  • the large-row guide rail 201.2 is provided with a slider 201.3, the slider 201.3 is fixedly connected with the cylinder shaft of the traverse cylinder 201.4 side, and the cylinder shaft of the other side of the traverse cylinder 201.4 is fixedly connected with the large-row guide frame body 201.5
  • the large-row guide frame body 201.5 is provided with a large-row guide support frame 201.6 at the top, the large-row guide support frame 201.6 is disposed in the large-row guide rail 201.2, and the bottom of the large-row guide frame 201.5 is disposed on the large-row frame The frame support frame 201.7.
  • the slider 201.3 is driven by the traverse cylinder 201.4 to slide on the large gantry guide rail 201.2.
  • the slider 201.3 After the slider 201.3 reaches the predetermined position, the slider 201.3 is fixed to the large gantry guide rail 201.2 by bolts, and the traverse cylinder 201.4 moves again to pull the large gantry guide.
  • the frame body 201.5 slides on the large bay guide rail 201.2 to a designated position, and then carries the pile operation in cooperation with the crawler crane, and a row of steel pipe piles 102 can be driven in the forward direction of the mobile platform.
  • the pile top pushing and positioning device comprises a pile top positioning seat 101, and the bottom part of the pile top positioning seat 101 has a positioning groove 103 matched with the pile top of the steel pipe pile 102; the pile top positioning seat 101 is provided above
  • the support frame 104, the support frame 104 and the pile top positioning seat 101 are connected with a lifting adjustment device 105; the top plate of the support frame 104 is fixed with a three-way jack 106 and a locking device 108 fixedly coupled with the bottom plate of the load-bearing platform 107.
  • the pile top positioning seat 101 is based on the top of the steel pipe pile 102
  • the shape of the part is designed to be coordinated with the steel pipe pile 102, and the lifting adjustment device 105 is adjusted to adjust the height of the support frame 104.
  • the locking device 108 is locked to lock the platform.
  • the pine is loose.
  • the locking device 108 is opened and the platform is pushed and moved by the three-way jack 106.
  • a rubber ring 109 is fixed to the circumferential groove wall of the positioning groove 103 of the pile top positioning base 101. Improve the structural stability of the pile top positioning seat 101 and the steel pipe pile 102 pile top positioning.
  • the lifting adjustment device 105 includes a threaded sleeve 105.1 disposed on the top of the pile top positioning seat 101.
  • the threaded sleeve 105.1 is internally threaded with an inner and outer threaded sleeve 105.2, and the inner and outer threaded sleeve 105.2 is internally threaded.
  • the screw 105.3, the top of the screw 105.3 is fixed in the support frame 104; the top of the lifting and lowering device 105 is further fixed with a ball joint nut 115, and the ball joint nut 115 is fitted with a ball joint bolt 116, the top of the ball joint bolt 116 A ball joint 117 is attached, and the ball joint 117 is pressed against the bottom of the support frame 104.
  • the top end of the pile top positioning seat 101 is evenly spaced apart by a threaded sleeve positioning hole 101.1 and a ball joint bolt positioning hole 101.2.
  • the threaded sleeve 105.1 is fixed in the threaded sleeve positioning hole 101.1, and the ball joint bolt 116 is disposed in the ball joint bolt positioning hole 101.2.
  • the ball hinge 117 Through the structure of the ball hinge 117, the level of the support base 104 is ensured to ensure the stability of the jacking.
  • the inner and outer threaded sleeves 105.2 are rotated to move the screw 105.3 up and down to adjust the height of the support frame 104.
  • the top center of the screw 105.3 is provided with a positioning through hole 110.
  • the front and rear sides of the positioning through hole 110 are respectively provided with a screw positioning plate 111, and two screw positioning plates 111 and a positioning through hole 110 of the screw 105.3.
  • a positioning pin 112 is connected therebetween, and the screw positioning plate 111 is fixed in the support frame 104.
  • a locking device 108 is symmetrically fixed on both sides of the top plate of the support frame 104; the locking device includes a locking bracket, and the locking adjustment plate 108.1 is fixedly coupled to the top of the locking bracket, and the locking adjustment plate 108.1 is opened.
  • the locking bracket includes two opposite rocker plates 113, and the upper portions of the two rocker plates 113 are provided with a connecting shaft 114 (which is a long shaft).
  • the connecting shaft 114 passes through the locking seat 108.2, the top of the locking seat 108.2 is provided with a locking fixing plate 108.3, and the rear part of the locking fixing plate 108.3 is provided with a locking supporting plate 108.4; the locking The rear portion of the adjusting plate 108.1 is supported on the locking support plate 108.4.
  • the two sides of the bottom surface of the locking adjusting plate 108.1 are respectively provided with a supporting sleeve 108.5, and the two sides of the rear side of the locking fixing plate 108.3 are respectively disposed.
  • the longitudinal adjusting bolt 108.6 is disposed in the supporting sleeve 108.5, and the top of the longitudinal adjusting bolt 108.6 is connected with a lock nut 108.7 through the locking adjusting plate 108.1, and the locking bolt 108.8 is set On both sides of the front of the locking adjustment plate 108.1.
  • the two sides of the locking adjusting plate 108.1 are provided with long holes, and the top of the locking bolt 108.8 passes through the long hole connecting lock nut 108.7.
  • the inner diameter of the supporting sleeve 108.5 is larger than the diameter of the longitudinal adjusting bolt 108.6, and the locking is tight.
  • a reinforcing plate 108.9 is fixedly connected between the two sides of the rear portion of the support plate 108.3 and the locking bracket plate 108.2.
  • the structural strength of the locking support plate 108.3 is further strengthened to ensure the locking effect on the bottom plate of the bearing platform 107.
  • the pile top positioning base 101 is also fixedly connected with a tie rod, so that the pushing device is integrally connected to ensure the stability of the jacking.
  • the walking type mobile piling platform comprises a pile top pushing and positioning device erected on the top of the steel pipe pile 102 pile, and is arranged on the pile top pushing and positioning device.
  • the load-bearing platform 107 is provided with a work platform 200 on the load-bearing platform 107, and a large-sized rack guide frame is respectively arranged on the work platform 200 and the load-bearing platform 107, and a mounting platform 203 is placed on the front and rear of the load-bearing platform 107.
  • the whole platform is installed in sequence, and after the platform is installed in position, the bearing platform 107 is locked by the locking device 108.
  • the piling construction will be carried out through the large bay guide frame 201 or the small bay guide frame 202.
  • the positioning device is pushed up by the top of the pile corresponding to the new construction steel pipe pile 102 by means of the installation platform 203.
  • the three-way jack 106 lifts the load-bearing platform 107 away from the support and pushes the load-bearing platform 107 to move forward synchronously. After moving one stroke forward, the three-way jack 106 descends, and the load-bearing platform 107 falls on the pile top. On the push-pull positioning device, the vertical cylinder 106.2 returns to the oil, so that the cycle reciprocates and pushes the entire platform synchronously. When an offset occurs, the traverse cylinder 106.3 of the three-way jack 106 can push the platform for lateral correction.

Abstract

一种桩顶支撑步履式移动打桩平台，包括设置于钢管桩(102)顶部的桩顶顶推定位装置，桩顶顶推定位装置上设置有承重平台(107)，承重平台(107)上固定有作业平台(200)，作业平台(200)的前部设置有大排架导向架(201)，承重平台(107)的左右两侧分别设置有一个小排架导向架(202)，承重平台(107)的前后两侧在与钢管桩(102)的对应位置处设置有安装平台(203)。

Description

桩顶支撑步履式移动打桩平台 技术领域
本发明涉及桩基施工设备技术领域，具体地指一种桩顶支撑步履式移动打桩平台。
背景技术
水上桩基施工常规采用自升式平台或者搭设的固定作业平台作为基础进行工程桩的施打。自升式平台作为专用设备，可以适应不同水深和波浪环境下的打桩作业，但是造价高昂，需要专业人员进行操作，且移位时受波浪周期影响大，移动和定位耗时长，受海况环境影响大，每次位置转换时定位精度不高，工效相对较低；以固定平台作为基础进行工程桩施打时，定位精度高，在平台范围内进行位置转换时非常方便，但是大面积的固定平台搭设成本高，适用范围窄，仅能进行平台范围内的打桩作业，且环境适应性差，一般仅用于内河和湖泊环境，无法在外海等恶劣环境搭设平台。对环境也有较大影响。
发明内容
本发明的目的就是要解决上述背景技术的不足，提供一种桩顶支撑步履式移动打桩平台，该打桩平台利用顶推定位装置进行移动，并通过大小排架导向架进行打桩施工操作，可满足复杂环境的施工要求，实用性强。
为实现此目的，本发明所设计的桩顶支撑步履式移动打桩平台，包括设置于工程桩顶部的桩顶顶推定位装置，所述桩顶顶推定位装置上设置有承重平台，所述承重平台上设置有作业平台，所述作业平台的前部设置有大排架导向架，所述承重平台的左右两侧分别设置有一个小排架导向架，所述承重平台的前后两侧在与工程桩的对应位置处设置有安装平台。
进一步的，所述承重平台包括多根平行设置的主纵梁，所述主纵梁之间固定连接有多根与主纵梁垂直的横梁，所述主纵梁的后端部上固定有与横梁平行的联系梁，所述联系梁上固定有安装平台，所述主纵梁的前端也固定有安装平台。
进一步的，所述承重平台最左侧和最右侧的两根主纵梁的中部分别设置有一个导向支撑架，所述小排架导向架设置于导向支撑架上。
进一步的，所述大排架导向架包括大排架支架，所述大排架支架的顶部固定有大排架导向轨道，底部固定有大排架架体支撑架，所述大排架导向轨道上设置有滑块，所述滑块 与横移油缸一侧的油缸轴固定连接，所述横移油缸另一侧的油缸轴固定连接大排架导向架体，所述大排架导向架体顶部设有大排架导向支撑架，所述大排架导向支撑架设置于大排架导向轨道内，所述大排架导向架体的底部设置于大排架架体支撑架内。
进一步的，所述桩顶顶推定位装置包括桩顶定位座，所述桩顶定位座底部开有与工程桩桩顶配合的定位槽；所述桩顶定位座上方设有支撑架，所述支撑架与桩顶定位座之间连接有升降调节装置；所述支撑架的顶板上固定有三向千斤顶和与承重平台底板配合固定的锁紧装置。
进一步的，所述升降调节装置包括设置于桩顶定位座顶部的螺纹套筒，所述螺纹套筒内螺纹连接有内外螺纹套管，所述内外螺纹套管内螺纹连接有螺杆，所述螺杆顶部固定于支撑架内。
进一步的，所述螺杆的顶部中央开有定位通孔，所述定位通孔的前后两侧分别设有一块螺杆定位板，所述两块螺杆定位板与螺杆的定位通孔之间连接有定位销轴，所述螺杆定位板固定于支撑架内；所述升降调节装置的顶部还固定有球铰螺母，所述球铰螺母中配合有球铰螺栓，所述球铰螺栓顶部连接有球铰，所述球铰与支撑架的底部贴合压紧。
进一步的，所述支撑架的顶板两侧对称固定有一个锁紧装置；所述锁紧装置包括锁紧支架，所述锁紧支架顶部配合固定有锁紧调节板，所述锁紧调节板上开有纵向螺纹孔，所述纵向螺纹孔内配合有压紧承重平台底板的锁紧螺栓。
进一步的，所述锁紧支架包括两块正对的摇臂板，所述两块摇臂板的上部设有连接短轴，所述连接短轴设置于锁紧座内，所述锁紧座的顶部设有锁紧固定板，所述锁紧固定板的后部设置有锁紧支撑板；所述锁紧调节板的后部支撑在锁紧支撑板上，所述锁紧调节板底面的中部两侧分别设置有一个支撑套筒，所述锁紧固定板的后部两侧分别设置有一个纵向调节螺栓，所述纵向调节螺栓设置于支撑套筒内，所述纵向调节螺栓的顶部穿过锁紧调节板连接有锁紧螺母，所述锁紧螺栓设置于锁紧调节板的前部两侧。
更进一步的，所述锁紧调节板的两侧开有长孔，所述锁紧螺栓的顶部穿过于长孔连接锁紧螺母，所述支撑套筒的内径大于纵向调节螺栓的直径，所述锁紧固定板的后部两侧与锁紧座之间固定连接有加强板。
本发明的有益效果是：桩顶顶推定位装置安装于桩顶，承重平台支撑在顶推定位装置上，通过三向千斤顶实现平台的步履式顶推前移。由于平台支撑在已施工的钢管桩上，平台初定位可自动完成，通过升降调节装置、三向千斤顶和大小排架导向架共同工作可对钢管桩快速精确定位，通过导向架的横移可实现在整个平台范围内钢管桩的施工，通过安装 平台可快速实现对桩顶顶推定位装置的安装拆除和桩顶后续施工。平台移动操作简单，大大提高了施工效率，减少了人工的劳动量，具有很好的实用性和市场应用价值。
附图说明
图1为本发明中打桩平台的俯视图；
图2为本发明中承重平台的俯视图；
图3为本发明中小排架导向架的安装结构示意图；
图4为本发明中大排架导向架的安装结构示意图；
图5为本发明中桩顶顶推定位装置与承重平台底板配合定位的结构示意图；
图6为本发明中桩顶顶推定位装置的主视图；
图7为本发明中螺杆设置于支撑架内的结构示意图；
图8为本发明中三向千斤顶的侧视图；
图9为本发明中摇臂的侧视图；
图10为本发明中三向千斤顶的俯视图；
图11为本发明中桩顶定位座的俯视图；
图12为本发明中打桩平台工艺流程图一；
图13为本发明中打桩平台工艺流程图二；
图14为本发明中打桩平台工艺流程图三；
图15为本发明中打桩平台工艺流程图四；
图16为本发明中大排架导向架定位结构的侧视图；
图17为本发明中大排架导向架顶部定位部分的结构示意图；
图18为本发明中大排架导向架底部定位部分的结构示意图；
其中，101—桩顶定位座，101.1—螺纹套筒定位孔，101.2—球铰螺栓定位孔，102—工程桩，103—定位槽，104—支撑架，105—升降调节装置，105.1—螺纹套筒，105.2—内外螺纹套管，105.3—螺杆，106—三向千斤顶，106.1—主顶，106.2—纵移油缸，106.3—横移油缸，107—承重平台，108—锁紧装置，108.1—锁紧调节板，108.2—锁紧座，108.3—锁紧固定板，108.4—锁紧支撑板，108.5—支撑套筒，108.6—纵向调节螺栓，108.7—锁紧螺母，108.8—锁紧螺栓，108.9—加强板，109—橡胶圈，110—定位通孔，111—螺杆定位板，112—定位销轴，113—摇臂板，114—连接短轴，115—球铰螺母，116—球铰螺栓，117—球铰。200—作业平台，201—大排架导向架，201.1—大排架支架，201.2—大排架导 向轨道，201.3—滑块，201.4—横移油缸，201.5—大排架导向架体，201.6—大排架导向支撑架，201.7—大排架架体支撑架，202—小排架导向架，203—安装平台，204—系杆。
具体实施方式
下面结合附图和具体实施例对本发明作进一步的详细说明。
如图1—4所示的桩顶支撑步履式移动打桩平台，包括固定于钢管桩102顶部的桩顶顶推定位装置，桩顶顶推定位装置上固定有承重平台107，承重平台107上固定有作业平台200，作业平台200的前部固定有大排架导向架201，承重平台107的左右两侧分别固定有一个小排架导向架202，承重平台107的前后两侧在与钢管桩102的对应位置处固定有安装平台203。
如图2所示，承重平台107包括多根平行设置的主纵梁107.1，主纵梁107.1之间固定连接有多根与主纵梁107.1垂直的横梁107.2，主纵梁107.1的后端部上固定有与横梁107.2平行的联系梁107.3，联系梁107.3上固定有安装平台203，主纵梁107.1的前端也固定有安装平台203。主纵梁107.1支撑在桩顶顶推定位装置上。
上述技术方案中，承重平台107最左侧和最右侧的两根主纵梁107.1的中部分别固定有一个导向支撑架107.4，小排架导向架202固定于导向支撑架107.4上。导向支撑架107.4加强小排架导向架202的结构强度。
如图4、图16—18所示，大排架导向架201包括大排架支架201.1，大排架支架201.1的顶部固定有大排架导向轨道201.2，底部固定有大排架架体支撑架201.7，大排架导向轨道201.2上设置有滑块201.3，滑块201.3与横移油缸201.4一侧的油缸轴固定连接，横移油缸201.4另一侧的油缸轴固定连接大排架导向架体201.5，大排架导向架体201.5顶部设有大排架导向支撑架201.6，大排架导向支撑架201.6设置于大排架导向轨道201.2内，大排架导向架体201.5的底部设置于大排架架体支撑架201.7内。滑块201.3由横移油缸201.4驱动，在大排架导向轨道201.2上滑动，滑块201.3到达预定位置后通过螺栓固定在大排架导向轨道201.2上，横移油缸201.4再次动作拉动大排架导向架体201.5在大排架导向轨道201.2上滑动到达指定位置，再配合履带吊进行喂桩操作，可在移动平台的前进方向上打一排钢管桩102。
如图5—11所示，桩顶顶推定位装置包括桩顶定位座101，桩顶定位座101底部开有与钢管桩102桩顶配合的定位槽103；桩顶定位座101上方设有支撑架104，支撑架104与桩顶定位座101之间连接有升降调节装置105；支撑架104的顶板上固定有三向千斤顶106和与承重平台107底板配合固定的锁紧装置108。桩顶定位座101根据钢管桩102顶 部的形状进行设计，与钢管桩102配合定位，调节升降调节装置105调节支撑架104的高度，当平台处于施工位置处时，操作锁紧装置108锁紧平台，当平台需要移动时，松开锁紧装置108，通过三向千斤顶106对平台进行顶推和移动。
如图5、图7—9所示，桩顶定位座101的定位槽103的周向槽壁上固定有橡胶圈109。提高桩顶定位座101与钢管桩102桩顶配合定位的结构稳定性。
如图5—9所示，升降调节装置105包括设置于桩顶定位座101顶部的螺纹套筒105.1，螺纹套筒105.1内螺纹连接有内外螺纹套管105.2，内外螺纹套管105.2内螺纹连接有螺杆105.3，螺杆105.3顶部固定于支撑架104内；所述升降调节装置105的顶部还固定有球铰螺母115，所述球铰螺母115中配合有球铰螺栓116，所述球铰螺栓116顶部连接有球铰117，所述球铰117与支撑架104的底部贴合压紧。如图10所示，桩顶定位座101的顶部周向上均匀间隔开有螺纹套筒定位孔101.1和球铰螺栓定位孔101.2，螺纹套筒105.1固定于螺纹套筒定位孔101.1内，球铰螺栓116设置于球铰螺栓定位孔101.2内。通过球铰117的结构，保证支撑座104水平，确保顶升稳定。旋转内外螺纹套管105.2，使螺杆105.3上下移动，从而调整支撑架104的高度。
如图7所示，螺杆105.3的顶部中央开有定位通孔110，定位通孔110的前后两侧分别设有一块螺杆定位板111，两块螺杆定位板111与螺杆105.3的定位通孔110之间连接有定位销轴112，螺杆定位板111固定于支撑架104内。螺杆105.3与支撑架104之间存在小的活动空间，可使螺杆105.3在承受支撑架104重量时进行自我补偿，进一步提高结构稳定性。
如图6所示，支撑架104的顶板两侧对称固定有一个锁紧装置108；锁紧装置包括锁紧支架，锁紧支架顶部配合固定有锁紧调节板108.1，锁紧调节板108.1上开有纵向螺纹孔，纵向螺纹孔内配合有压紧承重平台107底板的锁紧螺栓108.8。
如图6和图9所示，所述锁紧支架包括两块正对的摇臂板113，所述两块摇臂板113的上部设有连接轴114(是一根通长的轴)，所述连接轴114穿过锁紧座108.2，所述锁紧座108.2的顶部设有锁紧固定板108.3，所述锁紧固定板108.3的后部设置有锁紧支撑板108.4；所述锁紧调节板108.1的后部支撑在锁紧支撑板108.4上，所述锁紧调节板108.1底面的中部两侧分别设置有一个支撑套筒108.5，所述锁紧固定板108.3的后部两侧分别设置有一个纵向调节螺栓108.6，所述纵向调节螺栓108.6设置于支撑套筒108.5内，所述纵向调节螺栓108.6的顶部穿过锁紧调节板108.1连接有锁紧螺母108.7，所述锁紧螺栓108.8设置于锁紧调节板108.1的前部两侧。
上述技术方案中，锁紧调节板108.1的两侧开有长孔，锁紧螺栓108.8的顶部穿过于长孔连接锁紧螺母108.7，支撑套筒108.5的内径大于纵向调节螺栓108.6的直径，锁紧支撑板108.3的后部两侧与锁紧支架板108.2之间固定连接有加强板108.9。进一步加强锁紧支撑板108.3的结构强度，保证对承重平台107底板的锁紧效果。
如图12—15所示，桩顶定位座101之间还固定连接有系杆，使顶推装置连接成一体，确保顶升稳定。
本发明所设计的打桩平台的移动过程是：如图1所示，步履式移动打桩平台包括搭设在钢管桩102桩顶的桩顶顶推定位装置、搭设在桩顶顶推定位装置上的承重平台107、在承重平台107上搭设作业平台200、在作业平台200和承重平台107上分别搭设大小排架导向架，在承重平台107的前后搭设安装平台203。
如图12所示，根据现场测量数据，调整好桩顶顶推定位装置的高度后，依次进行安装整个平台，平台安装到位后，用锁紧装置108将承重平台107锁定。平台调试完成后将通过大排架导向架201或小排架导向架202进行打桩施工。
如图13所示，工程桩施打完成后，借助安装平台203在对应新施工钢管桩102的桩顶安装桩顶顶推定位装置。
如图14所示，安装完成后，三向千斤顶106将承重平台107顶离支座并推动承重平台107同步前移，前移一个行程后，三向千斤顶106下降，承重平台107落在桩顶顶推定位装置上，纵移油缸106.2回油，如此循环往复，将整个平台同步顶推前进。发生偏移时，三向千斤顶106的横移油缸106.3可推动平台进行横向纠偏。
如图15所示，平台同步顶推到位后，平台落在锁紧装置108两侧上并锁定，借助安装平台203拆除后排桩桩顶上的桩顶顶推定位装置，进行下一排桩施打。
以上所述，仅是本发明的较佳实施例而已，并非对本发明的结构做任何形式上的限制。凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明的技术方案的范围内。

Claims (10)

  1. 一种桩顶支撑步履式移动打桩平台，其特征在于：它包括设置于钢管桩(102)顶部的桩顶顶推定位装置，所述桩顶顶推定位装置上设置有承重平台(107)，所述承重平台(107)上固定有作业平台(200)，所述作业平台(200)的前部设置有大排架导向架(201)，所述承重平台(107)的左右两侧分别设置有一个小排架导向架(202)，所述承重平台(107)的前后两侧在与钢管桩(102)的对应位置处设置有安装平台(203)。
  2. 根据权利要求1所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述承重平台(107)包括多根平行设置的主纵梁(107.1)，所述主纵梁(107.1)之间固定连接有多根与主纵梁(107.1)垂直的横梁(107.2)，所述主纵梁(107.1)的后端部上固定有与横梁(107.2)平行的联系梁(107.3)，所述联系梁(107.3)上设置有安装平台(203)，所述主纵梁(107.1)的前端也设置有安装平台(203)。
  3. 根据权利要求2所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述承重平台(107)最左侧和最右侧的两根主纵梁(107.1)的中部分别设置有一个导向支撑架(107.4)，所述小排架导向架(202)设置于导向支撑架(107.4)上。
  4. 根据权利要求1所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述大排架导向架(201)包括大排架支架(201.1)，所述大排架支架(201.1)的顶部设置有大排架导向轨道(201.2)，底部设置有大排架架体支撑架(201.7)，所述大排架导向轨道(201.2)上设置有滑块(201.3)，所述滑块(201.3)与横移油缸(201.4)一侧的油缸轴连接，所述横移油缸(201.4)另一侧的油缸轴连接大排架导向架体(201.5)，所述大排架导向架体(201.5)顶部设有大排架导向支撑架(201.6)，所述大排架导向支撑架(201.6)设置于大排架导向轨道(201.2)内，所述大排架导向架体(201.5)的底部设置于大排架架体支撑架(201.7)内。
  5. 根据权利要求1所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述桩顶顶推定位装置包括桩顶定位座(101)，所述桩顶定位座(101)底部开有与工程桩(102)桩顶配合的定位槽(103)；所述桩顶定位座(101)上方设有支撑架(104)，所述支撑架(104)与桩顶定位座(101)之间连接有升降调节装置(105)；所述支撑架(104)的顶板上固定有三向千斤顶(106)和与承重平台(107)底板配合固定的锁紧装置(108)。
  6. 根据权利要求5所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述升降调节装置(105)包括设置于桩顶定位座(101)顶部的螺纹套筒(105.1)，所述螺纹套筒(105.1)内螺纹连接有内外螺纹套管(105.2)，所述内外螺纹套管(105.2)内螺纹连 接有螺杆(105.3)，所述螺杆(105.3)顶部固定于支撑架(104)内。
  7. 根据权利要求6所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述螺杆(105.3)的顶部中央开有定位通孔(110)，所述定位通孔(110)的前后两侧分别设有一块螺杆定位板(111)，所述两块螺杆定位板(111)与螺杆(105.3)的定位通孔(110)之间连接有定位销轴(112)，所述螺杆定位板(111)固定于支撑架(104)内；所述升降调节装置(105)的顶部还固定有球铰螺母(115)，所述球铰螺母(115)中配合有球铰螺栓(116)，所述球铰螺栓(116)顶部连接有球铰(117)，所述球铰(117)与支撑架(104)的底部贴合压紧。
  8. 根据权利要求5所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述支撑架(104)的顶板两侧对称固定有一个锁紧装置(108)；所述锁紧装置包括锁紧支架，所述锁紧支架顶部配合固定有锁紧调节板(108.1)，所述锁紧调节板(108.1)上开有纵向螺纹孔，所述纵向螺纹孔内配合有压紧承重平台(107)底板的锁紧螺栓(108.8)。
  9. 根据权利要求8所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述锁紧支架包括两块正对的摇臂板(113)，所述两块摇臂板(113)的上部设有连接短轴(114)，所述连接短轴(114)设置于锁紧座(108.2)内，所述锁紧座(108.2)的顶部设有锁紧固定板(108.3)，所述锁紧固定板(108.3)的后部设置有锁紧支撑板(108.4)；所述锁紧调节板(108.1)的后部支撑在锁紧支撑板(108.4)上，所述锁紧调节板(108.1)底面的中部两侧分别设置有一个支撑套筒(108.5)，所述锁紧固定板(108.3)的后部两侧分别设置有一个纵向调节螺栓(108.6)，所述纵向调节螺栓(108.6)设置于支撑套筒(108.5)内，所述纵向调节螺栓(108.6)的顶部穿过锁紧调节板(108.1)连接有锁紧螺母(108.7)，所述锁紧螺栓(108.8)设置于锁紧调节板(108.1)的前部两侧。
  10. 根据权利要求9所述的一种桩顶支撑步履式移动打桩平台，其特征在于：所述锁紧调节板(108.1)的两侧开有长孔，所述锁紧螺栓(108.8)的顶部穿过于长孔连接锁紧螺母(108.7)，所述支撑套筒(108.5)的内径大于纵向调节螺栓(108.6)的直径，所述锁紧固定板(108.3)的后部两侧与锁紧座(108.2)之间固定连接有加强板(108.9)。
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