Construction method for front edge double-pile supporting beam and berthing component

Abstract

The invention relates to the technical field of wharf construction processing, in particular to a construction method for a front-edge double-pile bearing beam and a berthing component, according to a support building method, hoops are installed on front-edge double-row PHC piles to serve as anchoring points, cantilever beams are welded to the front edge sides of the hoops to serve as structures for supporting the berthing component, and the whole installation mode is simple, convenient and reliable; the double-layer hoops are adopted on the front-edge double-row PHC piles to serve as supports of different layers of structures, so that installation stability is guaranteed, later adjustment can be facilitated, and particularly, the installation levelness of the cantilever beam can be adjusted conveniently. In addition, the cross beams at the upper ends of the front-edge double-row PHC piles are connected through the supporting I-shaped steel oblique beams, so that the connecting stability between the front-edge double-row PHC piles and the rear-row double piles can be guaranteed, and the front-edge double-row PHC piles and the rear-row double piles are matched in different directions. The installation efficiency can be effectively improved by prefabricating the berthing component.

Description

Technical Field

[0001] The invention relates to the technical field of dock construction, and in particular to a construction method for a front double-pile supporting beam and a berthing component. Background Art

[0002] In the construction of port terminals, the construction of beams and the installation of mooring components are crucial links. The high-pile beam-slab wharf uses inclined pipe piles and vertical pipe piles as the supporting foundation, which are driven into the wharf foundation and connected to form a stable supporting frame. The construction of beams and the installation of mooring components are completed by setting up a support system with the help of pile foundations. Most of the traditionally designed docks are front single pile-supported beams and mooring component structures. This structure only requires a single hoop of full-length steel to complete the erection of the support, which is simple and convenient. However, with the popularity of the front double-pile-supported enlarged head rail beam structure, the traditional front single-pile-supported beam support system cannot ensure the bearing capacity and stability of the supporting beam structure. Therefore, a construction method for the front double-pile-supported beam and mooring components is needed to solve the above problems. Summary of the invention

[0003] In order to overcome one of the deficiencies of the prior art, the object of the present invention is to provide a construction method for front double-pile supporting beams and mooring components. This support construction method can significantly improve the installation accuracy and construction efficiency of mooring components and ensure structural stability and safety through optimized design and precise construction.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A construction method for a front double-pile supporting beam and a berthing member comprises the following steps:

[0006] Pre-construction preparation: Build mooring components according to requirements; prepare clamps according to actual construction conditions, select a pair of clamps and weld cantilever beams on the pair of clamps; measure whether the front double-row PHC piles are offset. If so, mark the offset on the front double-row PHC piles, and mark the installation positions of the clamps on the front double-row PHC piles and the rear double piles respectively;

[0007] Installation foundation construction: Install the lower clamp on the front double-row PHC piles, lay I-beams on both sides of the lower clamp of the front double-row PHC piles along the direction of the front double-row PHC piles to form a longitudinal beam, and after measurement and leveling, weld and fix the longitudinal beam to the supporting bracket on the lower clamp;

[0008] Main frame construction: Install clamps on the rear double piles, and then weld I-beams on both sides of the clamps along the direction of the rear double piles to form a crossbeam, which is perpendicular to the longitudinal beam; the corresponding ends of the crossbeams on both sides are close to but not connected to the front double-row PHC piles to form a cantilever, which is welded and fixed to the nearest longitudinal beam;

[0009] Construction of the expansion area: Install clamps with cantilever beams on the front double-row PHC piles, and adjust the installation positions of the two clamps on the front double-row PHC piles according to the previously measured offset to control the relative spacing of the cantilever beams on the two clamps; lay supporting I-beams on the upper parts of both ends of the longitudinal beam to connect the supporting brackets on the nearest clamps on the rear double piles. After leveling, weld the supporting I-beams to the upper clamps on the front double-row PHC piles;

[0010] Lifting of mooring components: mark the boundary points for the installation of the mooring components at the enlarged part and the main frame according to the preset positions, and lay a construction platform outside the installation area surrounded by the boundary points at the enlarged part and the main frame; after the mooring components are hoisted to the preset positions, use wooden planks and the marked boundary points to constrain and locate the installation positions of the mooring components; after confirming that the installation positions of the mooring components are correct, remove the lifting equipment to complete the lifting of the mooring components.

[0011] In some possible embodiments, the step of constructing the installation base specifically includes the following steps:

[0012] Check the deformation and size of the lower clamp, and then assemble the clamp; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamp, use a crane to install the lower clamp hoisting set on the front double-row PHC pile, and when the clamp is lowered to the specified elevation, adjust the direction of the supporting bracket, then remove the clamped small wooden board, tighten the bolts to complete the installation of the lower clamp on the front double-row PHC pile;

[0013] On the lower hoop of the front double-row PHC piles, I-beams are laid on both sides along the direction of the front double-row PHC piles to form a longitudinal beam; after measurement and leveling, the longitudinal beam is welded and fixed to the supporting bracket on the lower hoop;

[0014] In some possible embodiments, the step of constructing the enlarged location specifically includes the following steps:

[0015] Check the deformation and size of the two clamps with cantilever beams, and then assemble them; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamps, and use a crane to hoist the clamps with cantilever beams on each of the double-row PHC piles at the front; when the clamps with cantilever beams are lowered to the specified elevation, adjust the installation positions of the two clamps on the double-row PHC piles at the front according to the previous deviation to control the relative spacing of the cantilever beams on the two clamps; after adjusting the spacing of the two cantilever beams, remove the clamped small wooden board, tighten the bolts to complete the installation of the clamps with cantilever beams;

[0016] Supporting I-beam oblique beams are laid on the upper part of both ends of the longitudinal beam respectively, and the outward end of the supporting I-beam oblique beam is connected to the supporting corbel on the nearest clamp on the rear double piles. After leveling, the connections between the supporting I-beam oblique beam and the longitudinal beam, and between the supporting I-beam oblique beam and the supporting corbel on the nearest clamp on the rear double piles are welded and fixed.

[0017] In some possible embodiments, the welding leveling method of the supporting I-beam oblique beam is as follows:

[0018] Spot weld the connection between the supporting I-beam and the longitudinal beam, and between the supporting I-beam and the supporting bracket on the nearest hoop on the rear double piles, and then spot weld the supporting I-beam and the supporting bracket on the upper hoop of the front double PHC piles to preliminarily fix them;

[0019] After the spot welding of the supporting I-beam oblique beam and the supporting brackets on the front double-row PHC piles and the supporting brackets on the nearest clamps on the rear double piles is completed, a secondary level measurement is performed. If the levelness of the supporting I-beam oblique beam is qualified, full welding is performed between the supporting I-beam oblique beam and the two supporting brackets. If the levelness of the supporting I-beam oblique beam is unqualified, knock off the welding points on the supporting I-beam oblique beam and the supporting brackets on the front double-row PHC piles, and then spot welding is performed on the relative positions of the two until the levelness of the supporting I-beam oblique beam is qualified; after the levelness of the supporting I-beam oblique beam is qualified, full welding is performed between the supporting I-beam oblique beam and the two supporting brackets;

[0020] Finally, weld the connection between the longitudinal beam and the supporting I-beam diagonal beam.

[0021] In some possible embodiments, before welding the supporting I-beam and the longitudinal beam, and between the supporting I-beam and the supporting corbel on the nearest hoop on the rear double piles, if direct leveling is not possible, the end of the supporting I-beam close to the cross beam is used as a reference, and the upper surface of the supporting I-beam is at the same horizontal height as the upper surface of the cross beam. The other end of the supporting I-beam is raised by adding a steel plate of appropriate thickness and then welded and fixed.

[0022] In some possible embodiments, an adjustment height difference is reserved between the supporting I-beam oblique beam and the longitudinal beam.

[0023] In some possible embodiments, specific operations of the construction platform include: laying wooden planks and channel steels of the same height at intervals outside the installation area surrounded by the expansion and the boundary points on the main frame, and the channel steels are connected and fixed to the crossbeams, longitudinal beams and supporting I-beam diagonal beams by spot welding; and laying a thick wooden formwork layer on the wooden planks and channel steels.

[0024] In some possible embodiments, after the step of hoisting the mooring component, the method further includes:

[0025] The two longitudinal beams are connected by welding a connecting beam in an area between two piles of the front double row PHC piles, and one end of the connecting beam away from the rear double piles is welded to a side corresponding to the berthing member.

[0026] In some possible embodiments, the specific steps of constructing the berthing component include:

[0027] Analyze the drawings, and mark the specific positions of the rib straight thread sleeves embedded on the left and right sides 12 cm away from the edge according to the elevation data of the mooring component. After the positions are determined, holes are opened on the forming mold of the mooring component; 4 rib straight thread sleeves with a specification of M20 and a length of 12 cm are embedded on the left and right sides of the forming mold of the mooring component;

[0028] An arc-shaped steel bar is installed on each straight thread sleeve, and then a 100*100*10mm steel plate is welded outside each straight thread sleeve;

[0029] Before closing the forming mold of the mooring component, a second inspection is carried out to ensure that the embedded arc-shaped steel bar is close to the sleeve and the flatness of the steel plate; the foam sealant is used to fill the end of the straight thread sleeve of the sealing bar located in the forming mold, the bolt is tightened at the outward end of the straight thread sleeve of the bar, and then concrete is poured in the forming mold;

[0030] After the mooring component is formed, remove the forming mold, clean all the rib straight thread sleeves and unscrew the bolts; make holes on the reinforced steel plate with a specification of 200*100*20mm referring to the positions of all the rib straight thread sleeves on each side of the mooring component, then install the 200*100*20mm reinforced steel plate installation opening position on the mooring component, and then fix the 200*100*20mm reinforced steel plate to the side of the mooring component with bolts; weld two cantilever channel steels in parallel outwards on each 200*100*20mm reinforced steel plate, and the bottom surfaces of the two cantilever channel steels are at the same level.

[0031] In some possible embodiments, the thickness of the hoop to which the cantilever beam is welded is greater than the thickness of all other hoop.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] A construction method for the front double-pile supporting beam and the mooring member of the present invention adopts a special clamp installed on the front double-row PHC pile as an anchor point, and the cantilever beam is welded on the front side of the clamp as a structure to support the mooring member. The whole installation method is simple, convenient and reliable; a double-layer clamp is used on the front double-row PHC pile as a support for different layers of structure. Such a design not only ensures the stability of the installation, but also facilitates the later adjustment, especially facilitates the adjustment of the installation level of the cantilever beam, thereby ensuring the installation accuracy of the mooring member. In addition, the cross beam at the upper end of the front double-row PHC pile is connected by a supporting I-beam inclined beam, so that the connection stability between the front double-row PHC pile and the rear double pile can be ensured, and the different directions of the front double-row PHC pile and the rear double pile can be adapted. In this application, the position of the mooring member can be accurately controlled by fine-tuning the clamp, so that the installation accuracy of the mooring member can be controlled; by prefabricating the mooring member, the efficiency of installation can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a front view of a bracket suitable for the construction of a front double-pile supporting beam and a mooring member structure provided by an embodiment of the present invention;

[0036] Figure 2 It is a top view of a support provided by an embodiment of the present invention that is suitable for the construction of a front double-pile supporting beam and a mooring member structure with a thick wooden formwork layer removed;

[0037] Figure 3 is a schematic structural diagram of a locking fixture provided by an embodiment of the present invention;

[0038] Figure 4 It is a specific construction flow chart of a bracket suitable for the construction of a front double-pile supporting beam and a mooring component structure provided by an embodiment of the present invention.

[0039] Description of Figure Numbers:

[0040] Mooring member 10, strengthening steel plate 11;

[0041] The rear double pile is 20;

[0042] Frontier double row PHC piles 30;

[0043] Structural platform 40, cross beam 41, longitudinal beam 42, supporting I-beam diagonal beam 43, connecting beam 44, cantilever beam 45, cantilever channel steel 46, thick wooden formwork layer 47;

[0044] Locking fixing piece 50 , hoop half ring 51 , supporting bracket 52 . DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] Reference Figures 1 to 3 The bracket shown is suitable for the construction of the front double pile supporting beam and the berthing component structure, including the rear row double piles 20, the front double row PHC piles 30 and the structural platform 40. The rear row double piles 20 and the front double row PHC piles 30 are all installed on the dock foundation, and the upper ends of the rear row double piles 20 are sleeved with locking fixings 50; the front double row PHC piles 30 are arranged in front of the rear row double piles 20 and perpendicular to the direction of the rear row double piles 20; the front double row PHC piles 30 are also sleeved with two locking fixings 50, and the two locking fixings 50 on the front double row PHC piles 30 are arranged high and low; the bottom of the structural platform 40 is respectively installed on all the locking fixings 50, and the berthing component 10 is installed on the structural platform 40.

[0047] The wharf foundation is a concrete foundation or a pre-buried foundation, and the rear double piles 20 include two inclined pipe piles arranged at an angle to each other, the two inclined pipe piles are arranged one in front of the other, and the tops of the two inclined pipe piles overlap each other on the projection plane perpendicular to the direction of the two inclined pipe piles, and the locking fixture 50 is arranged on the overlapping area of ​​the two inclined pipe piles. In the present application, the direction of the front double-row PHC piles 30 is perpendicular to the direction of the two inclined pipe piles, and the whole is T-shaped. At the same time, the upper end of the front double-row PHC piles 30 is inclined close to the rear double piles 20. Such a design can increase the stability of the entire bracket.

[0048] In addition, the structural platform 40 is a conventionally constructed platform, such as a structure composed of I-beams and channel steels, which is designed according to actual usage requirements. In addition, the locking fixture 50 can be a conventional welded bracket structure or a clamp structure. If it is a welded bracket structure, when the structural platform 40 is constructed, if you want to adjust the installation position, you can open several installation screw holes on the welded bracket structure to adjust the installation height according to different heights. If it is a clamp structure, you only need to loosen the clamp and then adjust the position of the clamp on the rear double piles 20 or the front double PHC piles 30.

[0049] The support frame suitable for the construction of the front double pile supporting beam and the mooring member structure is designed with the front double row PHC piles 30 on the basis of the structure of the existing rear double piles 20. Such a setting can further increase the stability of the outward extending part of the beam 41; the front double row PHC piles 30 are vertically arranged with the rear double piles 20 in structure, forming a T-shaped structure design, which can improve the stability of the entire support frame. At the same time, the locking fixtures 50 are used to support and fix the structural platform 40. The locking fixtures 50 can be adjusted relative to the rear double piles 20 and the front double row PHC piles 30. Such a structural design can facilitate the control of the installation accuracy of the mooring member 10 in the later stage.

[0050] Reference Figure 1 to Figure 2 As shown, for the convenience of explanation, to improve the adaptability of installation and to ensure the accuracy of installation, the structural platform 40 includes a crossbeam 41 and a longitudinal beam 42. The crossbeam 41 is arranged on both sides of the rear row double piles 20 and is installed on the locking fixings 50. The longitudinal beam 42 is arranged on both sides of the front double row PHC piles 30 and is installed on the locking fixings 50 of the lower layer. One end of the crossbeam 41 close to the front double row PHC piles 30 is placed on the longitudinal beam 42. Both ends of the longitudinal beam 42 are connected to the locking fixings 50 of the rear row double piles 20 through supporting I-beam inclined beams 43. The supporting I-beam inclined beams 43 are connected to the locking fixings 50 of the upper layer of the front double row PHC piles 30. The mooring components 10 are installed on the outward side of the middle part of the longitudinal beam 42 and the area between the two groups of crossbeams 41 away from one end of the front double row PHC piles 30.

[0051] Among them, the cross beam 41 and the locking fixture 50 can be connected by welding or bolts and designed according to actual use requirements. The same principle applies to the longitudinal beam 42. In fact, the longitudinal beam 42 and the cross beam 41 are perpendicular to each other, but considering that if the two are installed at the same height, interference is likely to occur, for this reason, in this application, two layers of locking fixtures 50 are used to fix the front double-row PHC piles 30, and the longitudinal beam 42 is installed on the locking fixture 50 of the lower layer, so that the upper locking fixture 50 reserves an installation position, which is convenient for supporting the I-beam inclined beam 43 in the later stage, or installing the extended part of the cross beam 41, so as to ensure that the later cross beam 41 and the extended structures of the supporting I-beam inclined beam 43 form a relatively flat platform, which is conducive to the installation of the mooring structure 10 in the later stage.

[0052] In addition, since the rear double piles 20 include two oblique pipe piles, each cross beam 41 is installed and fixed to the side corresponding to the locking fixture 50 on the two oblique pipe piles, and the longitudinal beam 42 is also designed in the same way. In the present application, the supporting I-beam oblique beam 43 is the main connecting structure between the front double-row PHC piles 30 and the rear double piles 20, and it also adapts to the different directions between the front double-row PHC piles 30 and the rear double piles 20. It should be noted that the double-layer locking fixture 50 is set on the front double-row PHC piles 30, and the purpose of this is to facilitate the adjustment of the installation position during the installation process and ensure the installation accuracy.

[0053] In some possible implementations, in order to increase the strength, the middle parts between the two longitudinal beams 42 are connected by a connecting beam 44, and the upper surface of the connecting beam 44 is arranged coplanar with the upper surface of the cross beam 41 and the upper surface of the supporting I-beam inclined beam 43. Such an arrangement is mainly to facilitate the later installation and ensure the installation accuracy of the berthing component 10.

[0054] Reference Figures 1 to 2 As shown, in order to facilitate the installation of the mooring member 10, two cantilever beams 45 are arranged outward from the middle of the longitudinal beam 42, and the ends of the two cantilever beams 45 close to the rear double piles 20 are connected and fixed to the locking fixtures 50 on the upper layer of the front double-row PHC piles 30, wherein such a setting can effectively ensure the connection strength of the cantilever beams 45, and prevent the cantilever beams 45 from being overturned due to the force on the outward end. A mooring member 10 is installed in the area between the two cantilever beams 45 close to the end of the front double-row PHC piles 30, and the two sides of the mooring member 10 are placed on the two cantilever beams 45. Such a setting can effectively bring the weight of the mooring member 10 closer to the end of the front double-row PHC piles 30, reducing the risk of overturning due to the force on the outward end of the cantilever beam 45. It should be noted that the cantilever beam 45 and the locking fixture 50, and the cantilever beam 45 and the longitudinal beam 42 are all welded and fixed to ensure the connection strength.

[0055] In the above improved embodiment, cantilevered channel steels 46 are provided on the two cantilevered beams 45 and the two cross beams 41, and all cantilevered channel steels 46 are connected to the side of the corresponding side of the corresponding mooring member 10. In the above improved scheme, in order to increase the installation strength, a reinforcing steel plate 11 is welded on the opposite side walls of each mooring member 10, and one end of the cantilevered channel steel 46 is welded to the reinforcing steel plate 11. Such a setting is mainly to ensure that the mooring member 10 can be stably installed on the cantilevered beam 45; in addition, the design of the cantilevered channel steel 46 is to facilitate the later laying of the platform and provide installation support.

[0056] Reference Figure 1 As shown, in order to facilitate the later construction and ensure the construction safety, a thick wooden formwork layer 47 is laid on the longitudinal beam 42, the cross beam 41 and the cantilever beam 45.

[0057] Reference Figure 3 As shown, in order to facilitate installation and fixation and to be suitable for adjusting the position during the installation process, the locking fixing member 50 in this application is actually a clamp, and all locking fixing members 50 include two mutually cooperating clamp half rings 51, and the two ends of the clamp half rings 51 are connected by bolts to form a ring sleeve, wherein the ring sleeve is respectively mounted on the front double-row PHC piles 30 and the rear double piles 20, so that the installation position can be adjusted according to actual use requirements during the installation process. The two ends of the two clamp half rings 51 after being buckled form a supporting bracket 52, the crossbeam 41 is arranged on the supporting bracket 52 of the rear double piles 20, the longitudinal beam 42 is arranged on the supporting bracket 52 of the lower layer of the front double-row PHC piles 30, and the supporting I-beam inclined beam 43 is installed on the supporting bracket 52 of the upper layer of the front double-row PHC piles 30.

[0058] In the above-mentioned embodiment, the support bracket 52 and the supporting I-beam oblique beam 43, longitudinal beam 42 and cross beam 41 are connected by welding. In the actual design process, the width of the hoop half ring 51 should be less than or equal to the height of the cross beam 41, and greater than the height of the longitudinal beam 42. This design facilitates the later adjustment of the position of the hoop half ring 51 between the upper and lower layers on the front double-row PHC piles 30. In addition, in the actual installation process, since the front double-row PHC piles 30 and the rear double piles 20 are both in an abnormal vertical state, for the purpose of installation, some welding structures need to be designed between the support bracket 52 and the supporting I-beam oblique beam 43, longitudinal beam 42 and cross beam 41 to ensure that there is enough connection surface between the above structures and to ensure the reliability of the connection.

[0059] Reference Figures 1 to 4 As shown, the present application also provides a construction method for a front double pile supporting beam and a berthing member, comprising the following steps:

[0060] S100, pre-construction preparation: construct the mooring member 10 according to the demand; prepare the clamp according to the actual construction conditions, select a pair of clamps and weld the cantilever beam 45 on the pair of clamps; measure whether the front double-row PHC piles 30 are offset, if so, mark the offset on the front double-row PHC piles 30, and mark the installation position of the clamp on the front double-row PHC piles 30 and the rear double piles 20 respectively;

[0061] S200, installation foundation construction: install the lower layer of clamps on the front double-row PHC piles 30, lay I-beams on both sides of the clamps of the lower layer of the front double-row PHC piles 30 along the direction of the front double-row PHC piles 30 to form a longitudinal beam 42, and after measurement and leveling, the longitudinal beam 42 is welded and fixed to the supporting bracket 52 on the clamps of the lower layer;

[0062] S300, main frame construction: install a clamp on the rear double piles 20, and then weld I-beams on both sides of the clamp along the direction of the rear double piles 20 to form a crossbeam 41, and the corresponding ends of the crossbeams 41 on both sides are close to but not connected to the front double-row PHC piles 30 to form a cantilever; the end of the cantilever close to the front double-row PHC piles 30 is located above the longitudinal beam 42 and is connected to the longitudinal beam 42 by welding; the crossbeam 41 is perpendicular to the longitudinal beam 42;

[0063] S400, construction of the expansion part: install a clamp with a cantilever beam 45 on the front double-row PHC pile 30, and adjust the installation position of the two clamps on the front double-row PHC pile 30 according to the previous offset to control the relative distance between the cantilever beams 45 on the two clamps; lay supporting I-beam inclined beams 43 on the upper part of both ends of the longitudinal beam 42 to connect the supporting brackets 52 on the nearest clamp on the rear double pile 20, and after leveling, weld the supporting I-beam inclined beam 43 to the upper clamp on the front double-row PHC pile 30;

[0064] S500, hoisting the mooring component: mark the boundary points for the installation of the mooring component 10 at the enlarged part and the main frame according to the preset positions, and lay a construction platform outside the installation area surrounded by the boundary points at the enlarged part and the main frame; after the mooring component 10 is hoisted to the preset position, use wooden planks and the marked boundary points to constrain and locate the installation position of the mooring component 10; after confirming that the installation position of the mooring component 10 is correct, remove the hoisting equipment to complete the hoisting work of the mooring component 10.

[0065] Among them, in step S100, the thickness of the hoop welded with the cantilever beam 45 is greater than the thickness of all other hoop. The purpose of such design is to facilitate improving the connection strength between the cantilever beam 45 and the hoop. At the same time, the cantilever beam 45 serves as the supporting structure of the outermost berthing structure 10. Therefore, by increasing the thickness of the hoop, the installation strength of the entire bracket can be ensured.

[0066] The present invention is applicable to the support construction method for the front double pile supporting cross beam 41 and the mooring member 10 structure. A special clamp is installed on the front double row PHC pile 30 as an anchor point. The cantilever beam 45 is welded on the front side of the clamp as a structure to support the mooring member 10. The whole installation method is simple, convenient and reliable. Double-layer clamps are used on the front double row PHC pile 30 as a support for different layers of structures. Such a design not only ensures the stability of the installation, but also facilitates the adjustment in the later stage, especially facilitates the adjustment of the installation level of the cantilever beam 45, thereby ensuring the installation accuracy of the mooring member 10. In addition, the cross beam 41 at the upper end of the front double row PHC pile 30 is connected by a supporting I-beam inclined beam 43, so that the stability of the connection between the front double row PHC pile 30 and the rear double pile 20 can be ensured, and the different directions of the front double row PHC pile 30 and the rear double pile 20 can be adapted. In the present application, the position of the mooring member 10 can be precisely controlled by fine-tuning the clamp, so that the installation accuracy of the mooring member 10 can be controlled; by prefabricating the mooring member 10, the installation efficiency can be effectively improved.

[0067] Among them, in the above-mentioned embodiment, in step S100, in order to improve the installation accuracy, the mooring component 10 is installed in order to increase the installation accuracy; the specific steps of constructing the mooring component 10 in step S100 include:

[0068] S110, analyzing the drawings, marking the specific positions of the rib straight thread sleeves embedded on the left and right sides 12 cm away from the edge according to the elevation data of the mooring component 10, and after the positions are determined, drilling holes on the forming mold of the mooring component 10; embedding 4 rib straight thread sleeves of M20 specification and 12 cm in length on the left and right sides of the forming mold of the mooring component 10;

[0069] S120, install an arc-shaped steel bar on each straight thread sleeve, and then weld a 100*100*10mm steel plate on the outside of each straight thread sleeve;

[0070] S130, before closing the forming mold of the berthing component 10, perform another inspection to ensure that the embedded arc-shaped steel bar is close to the sleeve and the flatness of the steel plate; use foam sealant to fill the end of the straight thread sleeve of the sealing bar located in the forming mold, tighten the bolts at the outward end of the straight thread sleeve of the bar, and then pour concrete in the forming mold;

[0071] S140. After the mooring member 10 is formed, the forming mold is removed, all the rib straight threaded sleeves are cleaned and the bolts are unscrewed; holes are made on the reinforced steel plate 11 with a specification of 200*100*20mm, referring to the positions of all the rib straight threaded sleeves on each side of the mooring member 10, and then the 200*100*20mm reinforced steel plate 11 with the holes is installed in the opening position and mounted on the mooring member 10, and then the 200*100*20mm reinforced steel plate 11 is fixed to the side of the mooring member 10 by bolts; two cantilever channel steels 46 are welded outwardly in parallel on each 200*100*20mm reinforced steel plate 11, and the bottom surfaces of the two cantilever channel steels 46 are at the same level.

[0072] Among them, by pre-embedding the rib straight thread sleeve in advance when the prefabricated berthing member 10 is produced, the elevation of the berthing member 10 can be accurately controlled during installation, ensuring the installation accuracy in the later stage, and also facilitating the installation and reinforcement work in the later stage. At the same time, the rib straight thread sleeve is pre-embedded in advance in the prefabricated berthing member 10, and then the bolts are tightened to clamp the reinforcing steel plate 11, and the double-jointed cantilevered channel steel 46 is welded on both sides of the reinforcing steel plate 11. When installing, it is directly erected on the cantilever beam 45 to quickly complete the installation of the berthing member 10, which greatly improves the construction efficiency. In addition, in step S120, a steel plate is added, so that the tensile strength of the rib straight thread sleeve can be guaranteed, and the cantilevered channel steel 46 is welded on the 200*100*20mm reinforcing steel plate 11, which is convenient for welding reinforcement and convenient for the hoisting and fixing work of the berthing member 10 in the later stage. In addition, two cantilevered channel steels 46 are designed, so that it is convenient to control the installation level accuracy of the entire berthing member 10 during hoisting, and avoid the overturning of the berthing member 10 during the installation process.

[0073] Reference Figure 4 As shown, in step S200, the following steps are specifically included:

[0074] S210, check the deformation and size of the lower hoop, and then assemble the hoop; clamp a small wooden board at the joint of the two halves of the hoop, slightly tighten the bolts to assemble the hoop, use a crane to hoist the hoop of the lower layer onto the front double-row PHC pile 30, and when the hoop is lowered to the specified elevation, adjust the direction of the supporting bracket 52, then remove the clamped small wooden board, tighten the bolts to complete the installation of the lower hoop on the front double-row PHC pile 30;

[0075] S220, I-beams are laid on both sides of the lower hoop of the front double-row PHC piles 30 along the direction of the front double-row PHC piles 30 to form a longitudinal beam 42, and after measurement and leveling, the longitudinal beam 42 is welded and fixed to the supporting bracket 52 on the lower hoop.

[0076] Specifically, in the above-mentioned embodiment, the installation of the lower-layer clamp is based on itself as the installation basis. In the process of adjusting the lower-layer clamp, it is necessary to first fix the lower-layer clamp on one of the front double-row PHC piles 30, and then adjust the other clamp, so as to improve the efficiency of installation. After the longitudinal beam 42 is installed in the later stage, it is necessary to measure again to record the horizontal height difference between the two ends of the two longitudinal beams 42, which is conducive to the later installation of the supporting I-beam oblique beam 43. In addition, in the above-mentioned implementation, the longitudinal beam 42 is perpendicular to the cross beam 41; the cantilever formed by the cross beam 41 in step S300 is located above the longitudinal beam 42 at one end close to the front double-row PHC pile 30 and is connected to the longitudinal beam 42 by welding.

[0077] In one embodiment of the present application, in step S300, the basic operation of installing the clamp during the main frame construction process is: check the deformation and size of the clamp, and then assemble the clamp; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamp, use a crane to install the clamp hoisting set on the rear double pile 20, and when the clamp is lowered to the specified elevation, adjust the direction of the supporting bracket 52, and then remove the clamped small wooden board, tighten the bolts to complete the installation of the clamp on the rear double pile 20, and then weld the two supporting brackets 52 on each clamp along the two sides of the direction of the rear double pile 20 to form a crossbeam 41, and the crossbeam 41 is perpendicular to the longitudinal beam 42; the corresponding end of the crossbeam 41 on both sides is close to but not connected to the front double row PHC pile 30 and forms a cantilever, and the cantilever is welded and fixed to the nearest longitudinal beam 42. Among them, if the gap between the cantilever and the nearest longitudinal beam 42 is too large, it is necessary to add a steel plate for support welding to ensure the connection strength. It should be noted that the two cross beams 41 need to be leveled on the supporting corbels 52 before being welded and fixed.

[0078] In one embodiment of the present application, after the main frame is laid, the enlarged portion needs to be laid. Specifically, in step S400, the following steps are specifically included:

[0079] S410, check the deformation and size of the two clamps with cantilever beams 45, and then assemble them; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamp, and use a crane to hoist the clamp with the cantilever beam 45 on each pile on the front double-row PHC pile 30; when the clamp with the cantilever beam 45 is lowered to the specified elevation, adjust the installation positions of the two clamps on the front double-row PHC pile 30 according to the previous deviation to control the relative spacing of the cantilever beams 45 on the two clamps; after the spacing of the two cantilever beams 45 is adjusted, remove the clamped small wooden board, tighten the bolts to complete the installation of the clamp with the cantilever beam 45;

[0080] S420. Supporting I-beam oblique beams 43 are laid on the upper parts of both ends of the longitudinal beam 42 respectively. The outer ends of the supporting I-beam oblique beams 43 are connected to the supporting corbels 52 on the nearest clamps on the rear double piles 20. After leveling, the connections between the supporting I-beam oblique beams 43 and the longitudinal beams 42, and between the supporting I-beam oblique beams 43 and the supporting corbels 52 on the nearest clamps on the rear double piles 20 are welded and fixed.

[0081] Among them, in step S410, since the two piles of the front double-row PHC piles 30 are inclined toward the rear double-row piles 20, there must be different degrees of deviation in the actual installation process. Therefore, the installation height of the two clamps with cantilever beams 45 is adjusted according to the aforementioned measured deviation value, so that the installation height of the cross beam 41 and the longitudinal beam 42 can be adapted. In addition, the cantilever beam 45 is directly fixed on the clamp, and the outward end is connected to the outermost longitudinal beam 42. Therefore, in the actual installation process, when the cantilever beam 45 passes through the top of the outermost longitudinal beam 42, it is necessary to adjust the horizontality of the cantilever beam 45. At this time, if the two ends of the longitudinal beam 42 are uneven, then the steel plate can be added between the longitudinal beam 42 and the cantilever beam 45 for welding to ensure the horizontality of the two cantilever beams 45.

[0082] In the above step S420, the welding and leveling method of the supporting I-beam oblique beam 43 is as follows:

[0083] S421, spot-weld the connection between the supporting I-beam oblique beam 43 and the longitudinal beam 42, and the supporting I-beam oblique beam 43 and the supporting bracket 52 on the nearest clamp on the rear double pile 20, and then spot-weld the supporting I-beam oblique beam 43 and the supporting bracket 52 on the upper clamp of the front double PHC pile 30 to preliminarily fix them;

[0084] S422, after the spot welding of the supporting I-beam 43 to be supported and the supporting bracket 52 on the front double-row PHC piles 30 and the supporting bracket 52 on the nearest clamp on the rear double piles 20 is completed, a secondary level measurement is performed. If the levelness of the supporting I-beam 43 is qualified, the supporting I-beam 43 and the two supporting brackets 52 are fully welded. If the levelness of the supporting I-beam 43 is unqualified, the welding points on the supporting I-beam 43 and the supporting bracket 52 on the front double-row PHC piles 30 are knocked off, and then the relative positions of the two are spot welded until the levelness of the supporting I-beam 43 is qualified; after the levelness of the supporting I-beam 43 is qualified, the supporting I-beam 43 and the two supporting brackets 52 are fully welded;

[0085] S423, finally welding the connection between the longitudinal beam 42 and the supporting I-beam diagonal beam 43.

[0086] Among them, in the above-mentioned embodiment, through the above-mentioned leveling method, the installation flatness of the supporting I-beam inclined beam 43 can be ensured to facilitate the subsequent laying of the platform.

[0087] In step S400, an adjustment height difference is reserved between the supporting I-beam oblique beam 43 and the longitudinal beam 42. More specifically, before welding between the supporting I-beam oblique beam 43 and the longitudinal beam 42, and between the supporting I-beam oblique beam 43 and the supporting bracket 52 on the nearest clamp on the rear double pile 20, if direct leveling is not possible, the upper surface of the supporting I-beam oblique beam 43 and the upper surface of the transverse beam 41 are at the same level with one end of the supporting I-beam oblique beam 43 close to the transverse beam 41 as a reference, and the other end of the supporting I-beam oblique beam 43 is raised by adding a steel plate of appropriate thickness, and then welded and fixed.

[0088] In step S400, when tightening the bolts of all the clamps, the nuts on the bolts are tightened one by one symmetrically on both sides of the support bracket 52 using the intelligent torque wrench until all are tightened, and finally the final tightening torque value of the bolts is used for acceptance. In fact, in steps S200-S300, the installation and acceptance of the clamps on the rear double piles 20 and the lower clamps on the front double PHC piles 30 are also carried out in the same way.

[0089] The specific operation of the construction platform in step S500 includes: laying wooden squares and channel steels of the same height at intervals outside the installation area surrounded by the expansion and the boundary points on the main frame, and the channel steels are connected and fixed to the cross beams 41, the longitudinal beams 42 and the supporting I-beam diagonal beams 43 by spot welding; laying a thick wooden formwork layer 47 on the wooden squares and channel steels. Among them, the specification of the wooden squares is 10cm×10cm, and the waist width of the channel steel is also 10cm, so as to ensure that the laid construction platform is relatively regular.

[0090] After the step of hoisting the mooring component 10 in step S500, the method further includes:

[0091] The two longitudinal beams 42 are connected by welding a connecting beam 44 in the area between the two piles of the front double row PHC piles 30 , and one end of the connecting beam 44 away from the rear row double piles 20 is welded to the side corresponding to the mooring member 10 .

[0092] Among them, since the outermost longitudinal beam 42 is used to support the two cantilever beams 45, the design of the connecting beam 44 not only facilitates the fixation of the two longitudinal beams 42 to each other, but also improves the tensile strength of the outermost longitudinal beam 42.

[0093] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A construction method for front double pile support beams and mooring components, characterized in that: The following steps are involved: Pre-construction preparation: Build mooring components according to requirements; prepare clamps according to actual construction conditions, select a pair of clamps and weld cantilever beams on the pair of clamps; measure whether the front double-row PHC piles are offset. If so, mark the offset on the front double-row PHC piles, and mark the installation positions of the clamps on the front double-row PHC piles and the rear double piles respectively; Installation foundation construction: Install the lower clamp on the front double-row PHC piles, lay I-beams on both sides of the lower clamp of the front double-row PHC piles along the direction of the front double-row PHC piles to form a longitudinal beam, and after measurement and leveling, weld and fix the longitudinal beam to the supporting bracket on the lower clamp; Main frame construction: Install clamps on the rear double piles, and then weld I-beams on both sides of the clamps along the direction of the rear double piles to form a crossbeam, which is perpendicular to the longitudinal beam; the corresponding ends of the crossbeams on both sides are close to but not connected to the front double-row PHC piles to form a cantilever, which is welded and fixed to the nearest longitudinal beam; Construction of the expansion area: Install clamps with cantilever beams on the front double-row PHC piles, and adjust the installation positions of the two clamps on the front double-row PHC piles according to the previously measured offset to control the relative spacing of the cantilever beams on the two clamps; lay supporting I-beams on the upper parts of both ends of the longitudinal beam to connect the supporting brackets on the nearest clamps on the rear double piles. After leveling, weld the supporting I-beams to the upper clamps on the front double-row PHC piles; Lifting of mooring components: mark the boundary points for installation of mooring components at the enlarged part and the main frame according to the preset positions, and lay a construction platform outside the installation area surrounded by the boundary points at the enlarged part and the main frame; After the mooring component is hoisted to the preset position, use wooden strips and marked boundary points to constrain and locate the installation position of the mooring component; after confirming that the installation position of the mooring component is correct, remove the hoisting equipment and complete the hoisting work of the mooring component.

2. A construction method for front double pile supporting beam and berthing member according to claim 1, characterized in that: The steps of constructing the installation base specifically include the following steps: Check the deformation and size of the lower clamp, and then assemble the clamp; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamp, use a crane to install the lower clamp hoisting set on the front double-row PHC pile, and when the clamp is lowered to the specified elevation, adjust the direction of the supporting bracket, then remove the clamped small wooden board, tighten the bolts to complete the installation of the lower clamp on the front double-row PHC pile; On both sides of the lower clamp of the front double-row PHC piles along the direction of the front double-row PHC piles, I-beams are laid to form longitudinal beams. After measurement and leveling, the longitudinal beams are welded and fixed to the supporting brackets on the lower clamp.

3. A construction method for front double pile supporting beam and berthing member according to claim 1, characterized in that: The steps of constructing the enlarged area specifically include the following steps: Check the deformation and size of the two clamps with cantilever beams, and then assemble them; clamp a small wooden board at the joint of the two halves of the clamp, slightly tighten the bolts to assemble the clamps, and use a crane to hoist the clamps with cantilever beams on each of the double-row PHC piles at the front; when the clamps with cantilever beams are lowered to the specified elevation, adjust the installation positions of the two clamps on the double-row PHC piles at the front according to the previous deviation to control the relative spacing of the cantilever beams on the two clamps; after adjusting the spacing of the two cantilever beams, remove the clamped small wooden board, tighten the bolts to complete the installation of the clamps with cantilever beams; Supporting I-beam oblique beams are laid on the upper part of both ends of the longitudinal beam respectively, and the outward end of the supporting I-beam oblique beam is connected to the supporting corbel on the nearest clamp on the rear double piles. After leveling, the connections between the supporting I-beam oblique beam and the longitudinal beam, and between the supporting I-beam oblique beam and the supporting corbel on the nearest clamp on the rear double piles are welded and fixed.

4. A construction method for front double pile supporting beam and berthing member according to claim 3, characterized in that: The welding and leveling method of the supporting I-beam oblique beam is as follows: Spot weld the connection between the supporting I-beam and the longitudinal beam, and between the supporting I-beam and the supporting bracket on the nearest hoop on the rear double piles, and then spot weld the supporting I-beam and the supporting bracket on the upper hoop of the front double PHC piles to preliminarily fix them; After the spot welding of the supporting I-beam inclined beam and the supporting brackets on the front double-row PHC piles and the supporting brackets on the nearest hoop on the rear double piles is completed, a secondary level measurement is performed. If the levelness of the supporting I-beam inclined beam is qualified, full welding is performed between the supporting I-beam inclined beam and the two supporting brackets. If the levelness of the supporting I-beam inclined beam is unqualified, knock off the welding points on the supporting I-beam inclined beam and the supporting brackets on the front double-row PHC piles, and then spot welding is performed on the relative positions of the two until the levelness of the supporting I-beam inclined beam is qualified; After the horizontality of the supporting I-beam oblique beam is qualified, the supporting I-beam oblique beam and the two supporting brackets are fully welded; Finally, weld the connection between the longitudinal beam and the supporting I-beam diagonal beam.

5. A construction method for front double pile supporting beam and mooring member according to claim 3, characterized in that: Before welding between the supporting I-beam and the longitudinal beam, and between the supporting I-beam and the supporting corbel on the nearest hoop on the rear double piles, if direct leveling is not possible, the end of the supporting I-beam close to the crossbeam is used as a reference, and the upper surface of the supporting I-beam is at the same horizontal height as the upper surface of the crossbeam. The other end of the supporting I-beam is raised by adding a steel plate of appropriate thickness, and then welded and fixed.

6. A construction method for front double pile supporting beam and berthing member according to claim 1 or 3, characterized in that: An adjustable height difference is reserved between the supporting I-beam oblique beam and the longitudinal beam.

7. A construction method for front double pile supporting beam and berthing member according to claim 1, characterized in that: The specific operations of the construction platform include: laying wooden planks and channel steels of the same height at intervals outside the installation area surrounded by the expansion and the boundary points on the main frame, and connecting and fixing the channel steels with the crossbeams, longitudinal beams and supporting I-beam diagonal beams by spot welding; laying a thick wooden formwork layer on the wooden planks and channel steels.

8. A construction method for front double pile supporting beam and berthing member according to claim 1, characterized in that: After the step of hoisting the mooring component, the method further comprises: The two longitudinal beams are connected by welding a connecting beam in an area between two piles of the front double row PHC piles, and one end of the connecting beam away from the rear double piles is welded to a side corresponding to the berthing member.

9. A construction method for front double pile supporting beam and berthing member according to claim 1, characterized in that: The specific steps of constructing the mooring components include: Analyze the drawings, and mark the specific positions of the rib straight thread sleeves embedded on the left and right sides 12 cm away from the edge according to the elevation data of the mooring component. After the positions are determined, holes are opened on the forming mold of the mooring component; 4 rib straight thread sleeves with a specification of M20 and a length of 12 cm are embedded on the left and right sides of the forming mold of the mooring component; An arc-shaped steel bar is installed on each straight thread sleeve, and then a 100*100*10mm steel plate is welded outside each straight thread sleeve; Before closing the forming mold of the mooring component, a second inspection is carried out to ensure that the embedded arc-shaped steel bar is close to the sleeve and the flatness of the steel plate; the foam sealant is used to fill the end of the straight thread sleeve of the sealing bar located in the forming mold, the bolt is tightened at the outward end of the straight thread sleeve of the bar, and then concrete is poured in the forming mold; After the mooring component is formed, remove the forming mold, clean all the rib straight thread sleeves and unscrew the bolts; make holes on the reinforced steel plate with a specification of 200*100*20mm referring to the positions of all the rib straight thread sleeves on each side of the mooring component, then install the 200*100*20mm reinforced steel plate installation opening position on the mooring component, and then fix the 200*100*20mm reinforced steel plate to the side of the mooring component with bolts; weld two cantilever channel steels in parallel outwards on each 200*100*20mm reinforced steel plate, and the bottom surfaces of the two cantilever channel steels are at the same level.

10. A construction method for front double pile supporting beams and mooring components according to claim 1, characterized in that: The thickness of the hoop welded with the cantilever beam should be greater than the thickness of all other hoop.

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