Mounting structure of bucket type foundation construction top platform

Abstract

The utility model discloses an installation structure of a bucket type foundation construction top platform, which comprises four installation feet installed at the lower ends of four main legs of the construction top platform in a one-to-one correspondence mode, and each installation foot comprises a main body structure and a pair of telescopic clamping mechanisms. The main body structure is of a lattice structure, is in an inverted U shape with a top structure, an inner side structure and an outer side structure, and comprises two side panels, a top plate, a partition plate, an inner web plate, an outer web plate, an inner bottom plate and an outer bottom plate. The pair of telescopic clamping mechanisms is symmetrically installed on the upper portions of the inner side structure and the outer side structure of the main body structure. Each telescopic clamping mechanism comprises a counter-force frame and a hydraulic oil cylinder transversely installed in the counter-force frame, the end of a piston rod of each hydraulic oil cylinder is connected with a limiting end plate through a pin shaft, and the pin shafts are movably inserted into penetrating holes formed in the inner web plate and the outer web plate. The mounting structure not only can reduce the weight, but also can be firmly connected with the barrel type foundation, and can adapt to the size change of the barrel type foundation.

Description

Technical Field

[0001] The utility model relates to an installation structure of a top platform for barrel-type foundation construction. Background Art

[0002] The barrel foundation is a new type of structure with an open bottom and a closed top. It can form a pressure difference between the inside and outside of the barrel by pumping water, overcome resistance and achieve sinking. It is particularly suitable for soft clay seabeds. It has the advantages of no need for large equipment for water construction and sinking, short water operation time, and no noise during construction. It is used in marine engineering and water transport engineering. The barrel foundation of water transport engineering represented by docks and breakwaters has the characteristics of long structural axis and large number of foundations. It usually adopts precast concrete barrel foundation and a variable cross-section structure with a small upper barrel and a large lower barrel. The lower barrel is buried in the soil to ensure the bearing capacity and stability of the foundation, and the upper barrel is discharged to meet the use requirements of the structure. The upper barrel and the lower barrel are connected as a whole. A typical variable cross-section barrel foundation 100 includes a lower barrel 1A and an upper barrel 1B fixed on the top of the lower barrel; the lower barrel 1A includes a lower barrel top cover 11, a lower barrel outer wall 12 and a lower barrel inner partition wall 13, and the upper barrel 1B includes an upper barrel outer wall 14 and an upper barrel inner partition wall 15.

[0003] The pumping and sinking construction of the barrel foundation of the water transport project fully utilizes the structural characteristics of the water outlet of the upper barrel, integrates the power supply system, control system and other construction equipment on the construction top platform 200, and fixes the construction top platform 200 on the top of the upper barrel 1B, and only installs the submersible pump 16 on the lower barrel top cover 11. During the transportation, air flotation positioning and exhaust sinking stages before the barrel foundation is buried, the barrel foundation swings due to the environmental load, and the construction top platform installed on the top of the upper barrel will swing with the barrel foundation, so the installation feet of the construction top platform need to have a lateral limit function. At present, the construction top platform has a mounting foot welded under each of the four main legs; each mounting foot is a cup-shaped structure, and the width of the cup is slightly larger than the thickness of the outer wall of the upper barrel. When installing the construction top platform 200, first lift the construction top platform 200 to the vicinity of the top of the upper barrel 1B, align the four mounting feet 20 with the outer wall 14 of the upper barrel, and then lower the construction top platform 200 so that the top of the outer wall 14 of the upper barrel is inserted into the cup of the mounting foot 20 (see Figure 1a and Figure 1b The bottom surface of the cup of the installation foot contacts the top of the outer wall of the upper tube and transfers the vertical load. The side surface of the cup of the installation foot plays a limiting role to prevent the construction top platform from being separated from the barrel foundation after installation. After the barrel foundation is sunk into place, the construction top platform is lifted out by a crane ship and reused.

[0004] The installation structure of the above-mentioned construction top platform mainly has the following two problems:

[0005] 1) The installation foot is a solid steel structure with a heavy deadweight, which places high demands on the installation and recovery of the construction top platform;

[0006] 2) The installation foot does not have a clamping structure that is in close contact with the outer wall of the upper tube. As the water depth of the barrel foundation installation increases, the height of the barrel foundation will increase, and the swing amplitude of the construction top platform located on the top of the upper tube will also increase accordingly. This requires increasing the cup height of the installation foot, but this will also increase the deadweight of the installation foot.

[0007] 3) Since the installation feet are welded to the lower ends of the main legs of the construction top platform, the spacing cannot be adjusted, and therefore cannot adapt to changes in the size of the bucket foundation. Utility Model Content

[0008] The purpose of the utility model is to overcome the defects of the prior art and provide an installation structure for a top platform of a bucket foundation construction, which can not only reduce the weight, but also be firmly connected to the bucket foundation and can adapt to the size changes of the bucket foundation.

[0009] The purpose of the utility model is achieved as follows: a mounting structure of a barrel-type foundation construction top platform, comprising four mounting feet mounted one-to-one at the lower ends of four main legs of the construction top platform, each mounting foot comprising a main structure and a pair of telescopic clamping mechanisms;

[0010] The main structure is a lattice structure and is in an inverted U shape with a top structure, an inner side structure and an outer side structure. The main structure includes two side panels, a top plate, a partition plate, inner and outer web plates and inner and outer bottom plates; wherein,

[0011] The side panel is in an inverted U shape and includes a top, an inner side portion and an outer side portion, the distance between the outer end of the inner side portion and the inner end of the outer side portion is greater than the thickness of the outer wall of the upper cylinder of the barrel foundation, and the lower part of the outer end of the inner side portion is inclined inwardly, and the lower part of the inner end of the outer side portion is inclined outwardly;

[0012] The top plate is connected between the upper ends of the tops of the two side panels, and a plurality of groups of bolt holes connected to the lower ends of the main legs of the construction top platform are provided on the top plate;

[0013] The partition is arranged between the lower ends of the tops of the two side panels;

[0014] The inner and outer webs are connected between the outer ends of the inner portions of the two side panels and between the inner ends of the outer portions of the two side panels in a one-to-one correspondence;

[0015] The inner and outer bottom plates are connected between the lower ends of the inner side portions of the two side panels and between the lower ends of the outer side portions of the two side panels in a one-to-one correspondence;

[0016] The tops, top plates and partitions of the two side panels constitute the top structure of the main structure; the inner sides, inner webs and inner bottom plates of the two side panels constitute the inner structure of the main structure; the outer sides, outer webs and outer bottom plates of the two side panels constitute the outer structure of the main structure;

[0017] A pair of telescopic clamping mechanisms are symmetrically installed on the upper part of the inner structure and the upper part of the outer structure; each telescopic clamping mechanism includes a reaction frame and a hydraulic cylinder installed laterally in the reaction frame, and the end of the piston rod of the hydraulic cylinder is connected to a limiting end plate through a pin shaft, and the pin shaft is movably inserted into the through holes opened on the inner and outer webs.

[0018] The installation structure of the top platform of the barrel foundation construction mentioned above, wherein the top structure also includes a vertical stiffening plate connected between the middle part of the top plate and the middle part of the partition; the inner side structure also includes a transverse stiffening plate connected between the lower parts of the inner sides of the two side panels, and the outer side structure also includes a transverse stiffening plate connected between the lower parts of the outer sides of the two side panels.

[0019] In the above-mentioned installation structure of the top platform of the barrel foundation construction, a weight-reducing notch is provided on the outer side of the top of the side panel.

[0020] The installation structure of the top platform of the bucket foundation construction of the utility model has the following characteristics:

[0021] 1) The lattice-structured mounting feet can reduce their own weight;

[0022] 2) A pair of telescopic clamping mechanisms with remote control function is added to each installation foot, so that after the construction top platform is installed on the top of the upper tube, the pair of telescopic clamping mechanisms are in close contact with the outer wall of the upper tube, realizing active clamping and enhancing the effect of the firm connection between the installation foot and the outer wall of the upper tube;

[0023] 3) Change the connection method between the main legs of the construction top platform and the installation feet from welding to bolt connection, and reserve multiple sets of bolt holes on the top plate of the installation feet to adjust the distance between the installation feet, so as to better adapt to the size changes of the bucket foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1a It is an elevation view of the installation structure of the top platform of the bucket foundation construction in the prior art;

[0025] Figure 1b yes Figure 1a Side view;

[0026] Figure 2 It is a vertical view of the installation structure of the top platform of the bucket foundation construction of the utility model during installation;

[0027] Figure 3 yes Figure 2 Side view;

[0028] Figure 4It is a schematic diagram of the installation feet in the installation structure of the top platform of the bucket foundation construction of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the side panel of the installation foot of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the telescopic clamping mechanism in the installation foot of the utility model;

[0031] Figure 7a It is a vertical view of the installation structure of the top platform of the bucket foundation construction of the utility model during the second step of installation;

[0032] Figure 7b It is a vertical view of the installation structure of the top platform of the bucket foundation construction of the utility model during the third step of installation;

[0033] Figure 7c It is a vertical view of the installation structure of the top platform of the bucket foundation construction of the utility model during the fourth step of installation. DETAILED DESCRIPTION

[0034] The utility model will be further described below in conjunction with the accompanying drawings.

[0035] See also Figures 2 to 6 The installation structure of the barrel-type foundation construction top platform of the utility model includes four installation feet 30 installed one by one at the lower ends of four main legs of the construction top platform 200; each installation foot 30 includes a main structure and a pair of telescopic clamping mechanisms 4.

[0036] The main structure is a lattice structure and is in an inverted U shape with a top structure 3A, an inner side structure 3B and an outer side structure 3C. The main structure includes two side panels 31, a top plate 32, a partition 33, inner and outer webs 34a, 34b, inner and outer bottom plates 35a, 35b, a vertical stiffening plate 36 and inner and outer transverse stiffening plates 37a, 37b; wherein,

[0037] The side panel 31 is in an inverted U shape and includes a top 311, an inner portion 312 and an outer portion 313. The distance between the outer end of the inner portion 312 and the inner end of the outer portion 313 is greater than the thickness of the upper barrel outer wall 14 of the barrel foundation, and the lower portion of the outer end surface of the inner portion 312 is inclined inwardly, and the lower portion of the inner end surface of the outer portion 313 is inclined outwardly. A weight-reducing notch 310 is provided on the outer side of the top of the side panel 31.

[0038] The top plate 32 is connected between the upper ends of the tops 311 of the two side panels 31, and a plurality of bolt holes 320 are provided on the top plate 31;

[0039] The partition 33 is disposed between the lower ends of the tops 311 of the two side panels 31;

[0040] The inner and outer webs 34a, 34b are connected between the outer ends of the inner side portions 312 of the two side panels 31 and between the inner ends of the outer side portions 313 of the two side panels 31 in a one-to-one correspondence;

[0041] The inner and outer bottom plates 35a, 35b are connected between the lower ends of the inner side portions 312 of the two side panels 31 and between the lower ends of the outer side portions 313 of the two side panels 31 in a one-to-one correspondence;

[0042] The vertical stiffening plate 36 is connected between the middle of the top plate 32 and the middle of the partition plate 33, and the front and rear ends of the vertical stiffening plate 36 are fixed on the two side panels 31 in a one-to-one correspondence;

[0043] The inner and outer transverse stiffening plates 37a, 37b are connected one by one between the lower parts of the inner side parts 312 of the two side panels 31 and between the lower parts of the outer side parts 313 of the two side panels 31; the inner and outer transverse stiffening plates 37a, 37b are also fixed one by one to the inner and outer web plates 34a, 34b;

[0044] The top 311, top plate 32, partition 33 and vertical stiffening plate 36 of the two side panels 31 constitute the top structure 3A of the main structure; the inner side 312, inner web 34a, inner bottom plate 35a and inner transverse stiffening plate 37a of the two side panels 31 constitute the inner side structure 3B of the main structure; the outer side 313, outer web 34b, outer bottom plate 35b and outer transverse stiffening plate 37b of the two side panels 31 constitute the outer side structure 3C of the main structure.

[0045] The main structure is connected to the lower end of the main leg of the construction top platform 200 through a group of bolt holes 320 on the top plate 32 in the top structure 3A.

[0046] A pair of telescopic clamping mechanisms 4 are symmetrically installed on the upper part of the inner structure 3B and the upper part of the outer structure 3C of the main structure; each telescopic clamping mechanism 4 includes a reaction frame 41 and a hydraulic cylinder 42 transversely installed in the reaction frame 41, and the reaction frames 41 of the pair of telescopic clamping mechanisms are fixed on the inner and outer webs 34a and 34b in a one-to-one correspondence; the ends of the piston rods of the hydraulic cylinders 42 of the pair of telescopic clamping mechanisms are coaxially connected to a pin shaft 43, and the pin shaft 43 can be movably inserted into the through holes opened on the inner and outer webs 34a and 34b, and a limiting end plate 44 is installed on the end of the pin shaft 43.

[0047] The installation structure of the top platform of the bucket foundation construction of the utility model has the following characteristics for each installation foot 30:

[0048] 1) The thickness of the inner and outer webs is limited, much smaller than the distance between the inner structure 3B and the outer structure 3C, thus greatly reducing the deadweight of the structure;

[0049] 2) The top plate is provided with multiple sets of bolt holes, which can adjust the relative position between the mounting feet 30 and the main legs of the construction top platform;

[0050] 3) The opening of the main structure adopts the form of "straight segment + inclined segment", the spacing of the straight segment at the upper part of the opening is slightly larger than the thickness of the outer wall of the upper tube, which serves as a positioning structure, and the inclined segment at the lower part of the opening serves as a guide structure to facilitate the installation of the mounting foot 30 on the outer wall of the upper tube;

[0051] 4) Holes are opened on the inner and outer webs to install telescopic clamping mechanisms to achieve active clamping, so that the height of the straight section above the opening of the main structure does not need to increase with the increase of the bucket foundation.

[0052] After adopting the installation structure of the bucket-type foundation construction top platform of the utility model, the following steps are included when installing the construction top platform:

[0053] 1. According to the size of the barrel foundation upper cylinder 1B, select a group of suitable bolt holes 320 on the top plate 32, and connect the mounting feet 30 with the main legs of the construction top platform 200 through bolts to form a complete construction top platform 200.

[0054] 2. In the barrel foundation prefabrication base, before the construction top platform 200 is installed, including the on-site transportation and storage stages, the construction top platform 200 is erected on the ground (see Figure 7a ), at this stage, the four mounting feet 30 need to bear the gravity of the entire construction top platform 200, and the gravity is transmitted through the top plate 32 connected to the main leg bolts, and is jointly borne by the two side panels 31, the vertical reinforcement plate 36 and the inner and outer webs 34a, 34b, and finally transmitted to the ground through the inner and outer bottom plates 35a, 35b.

[0055] 3. Before the construction top platform 200 is installed on the barrel foundation, the piston rod of the hydraulic cylinder 42 of the pair of telescopic clamping mechanisms 4 on each installation foot 30 is controlled to retract, driving the limit end plate 44 to retract to prevent the installation from being affected. During the installation of the construction top platform 200 on the barrel foundation, the construction top platform 200 is lifted by the lifting equipment, and after the rough positioning is completed with the upper cylinder 1B, the construction top platform 200 is lowered, and the inclined section at the lower opening of each installation foot 30 plays a guiding role, so that the installation foot 30 and the outer wall 14 of the upper cylinder are accurately positioned, and finally the four installation feet 30 of the construction top platform 200 are synchronously buckled onto the outer wall 14 of the upper cylinder (see Figure 7b In this process, in terms of vertical load, the mounting foot 30 only bears its own weight; in terms of horizontal load, each mounting foot 30 needs to bear the lateral force formed by the collision with the outer wall 14 of the upper tube during the positioning process, and the lateral force is jointly borne by the two side panels 31 and the inner and outer transverse stiffening plates 37a and 37b.

[0056] 4. After the partition plate 33 of the installation foot is in vertical contact with the top surface of the upper tube 1B, the piston rod of the hydraulic cylinder 42 drives the shaft pin 43 to extend, so that the limit end plate 44 is in close contact with the outer wall 14 of the upper tube, forming a lateral active clamping, and then the connection between the hoisting equipment and the construction top platform 200 is released, and the installation of the construction top platform 200 is completed (see Figure 7c At this stage, the four mounting feet 30 need to bear the gravity of the entire construction top platform 200, which is transferred to the main structure through the top plate 32 connected to the main leg bolts, and is jointly borne by the two side panels 31 and the vertical reinforcement plate 36, and finally transferred to the outer wall 14 of the upper tube through the partition plate 33.

[0057] 5. During the transportation and installation stage of the barrel foundation, the construction top platform 200 is located on the top of the upper tube 1B of the barrel foundation and swings synchronously with the barrel foundation. The four installation feet 30 mainly provide lateral reaction force and bending moment through the side panels 31 and the inner and outer transverse stiffening plates 37a and 37b, keeping the limit end plate 44 in close contact with the outer wall 14 of the upper tube at this stage, preventing relative displacement between the construction top platform 200 and the upper tube 1B of the barrel foundation, thereby ensuring the safety of the construction top platform 200.

[0058] 6. After the barrel foundation is installed in place, the hydraulic cylinder 42 is controlled to move in the reverse direction to drive the shaft pin 43 and the limit end plate 44 to retract, and the contact between the limit end plate 44 and the outer wall 14 of the upper tube is released. Then, the construction top platform 200 is lifted off the upper tube 1B of the barrel foundation installed in place by the crane ship. The construction top platform 200 is recovered, and then the above steps 2 to 6 are repeated to use the construction top platform to install other barrel foundations.

[0059] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A mounting structure for a bucket-type foundation construction top platform, comprising four mounting feet mounted one-to-one at the lower ends of four main legs of the construction top platform, each mounting foot comprising a main structure and a pair of telescopic clamping mechanisms; characterized in that: The main structure is a lattice structure and is in an inverted U shape with a top structure, an inner side structure and an outer side structure. The main structure includes two side panels, a top plate, a partition plate, inner and outer web plates and inner and outer bottom plates; The side panel is in an inverted U shape and includes a top, an inner side portion and an outer side portion, the distance between the outer end of the inner side portion and the inner end of the outer side portion is greater than the thickness of the outer wall of the upper cylinder of the barrel foundation, and the lower part of the outer end of the inner side portion is inclined inwardly, and the lower part of the inner end of the outer side portion is inclined outwardly; The top plate is connected between the upper ends of the tops of the two side panels, and a plurality of groups of bolt holes connected to the lower ends of the main legs of the construction top platform are provided on the top plate; The partition is arranged between the lower ends of the tops of the two side panels; The inner and outer webs are connected between the outer ends of the inner portions of the two side panels and between the inner ends of the outer portions of the two side panels in a one-to-one correspondence; The inner and outer bottom plates are connected between the lower ends of the inner side portions of the two side panels and between the lower ends of the outer side portions of the two side panels in a one-to-one correspondence; The tops, top plates and partitions of the two side panels constitute the top structure of the main structure; the inner sides, inner webs and inner bottom plates of the two side panels constitute the inner structure of the main structure; the outer sides, outer webs and outer bottom plates of the two side panels constitute the outer structure of the main structure; A pair of telescopic clamping mechanisms are symmetrically installed on the upper part of the inner structure and the upper part of the outer structure; each telescopic clamping mechanism includes a reaction frame and a hydraulic cylinder installed laterally in the reaction frame, and the end of the piston rod of the hydraulic cylinder is connected to a limiting end plate through a pin shaft, and the pin shaft is movably inserted into the through holes opened on the inner and outer webs.

2. The installation structure of the top platform of the barrel foundation construction according to claim 1 is characterized in that: The top structure also includes a vertical stiffening plate connected between the middle of the top plate and the middle of the partition; the inner side structure also includes a transverse stiffening plate connected between the lower parts of the inner sides of the two side panels, and the outer side structure also includes a transverse stiffening plate connected between the lower parts of the outer sides of the two side panels.

3. The installation structure of the top platform of the bucket foundation construction according to claim 1 is characterized in that: A weight-reducing notch is provided on the outer side of the top of the side panel.

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