CN112222774B - Construction method for shear key and embedded plate on immersed tube joint - Google Patents
Construction method for shear key and embedded plate on immersed tube joint Download PDFInfo
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- CN112222774B CN112222774B CN202011043495.8A CN202011043495A CN112222774B CN 112222774 B CN112222774 B CN 112222774B CN 202011043495 A CN202011043495 A CN 202011043495A CN 112222774 B CN112222774 B CN 112222774B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
Abstract
The invention discloses a construction method of a shear key and an embedded plate on a immersed tube joint, and relates to the technical field of immersed tube tunnels. The construction method of the shear key and the embedded plate on the immersed tube joint specifically comprises the following steps: s1, manufacturing a shear key; s2, matching and fixing the shear key and the embedded plate, and matching and drilling a fixing hole on the shear key and the embedded plate; s3, installing a welding sleeve in a fixing hole on one surface of the embedded plate, which is far away from the shear key; s4, one end of the first fixing piece penetrates through a fixing hole in the shear key and is fixedly arranged in the sleeve, so that the embedded part and the shear key are fixed; s5, integrally hoisting the fixed shear key and the embedded plate to a mounting position; and S6, fixedly welding the embedded plate to the steel shell block. According to the invention, through synchronous construction and manufacturing of the shear key and the embedded plate, the manufacturing errors between the shear key and the embedded plate are unified, the condition that the shear key cannot be installed on the embedded plate is avoided, the reworking is reduced, and the manpower and material resource costs are saved.
Description
Technical Field
The invention relates to the technical field of immersed tube tunnels, in particular to a construction method of a shear key and an embedded plate on an immersed tube joint.
Background
A complete immersed tube tunnel is generally formed by splicing a plurality of immersed tube pipe joints, and the end seal plates of the pipe joint connectors of two adjacent immersed tube pipe joints are limited and fixed mainly through steel shear keys. In two adjacent immersed tube joints, a shear key on another immersed tube joint end sealing plate is clamped by two shear keys fixed on one immersed tube joint end sealing plate to realize shearing resistance and limiting, so that relative displacement between the two immersed tube joints can not occur.
Shear keys are installed on end seal plates of immersed tube pipe joints through pre-embedded plates. The embedded plates are welded in the end sealing plates in an embedded mode, the embedded plates are installed at the end portions of the pipe joints after being machined, the embedded screws are arranged on the back faces of the embedded plates and pull the partition plates in the immersed pipe joints, and the shear keys are installed on the embedded plates formally after the immersed pipe joints are immersed and butted outside the field. According to the conventional method: the embedded plate is prefabricated and installed on the end sealing plate, and after the shear key is manufactured, preliminary trial assembly is carried out after the immersed tube pipe joint is folded and molded. The method can not ensure the installation precision between the shear key and the embedded plate: 1. because the shear key and the embedded plate have larger sizes and are separately manufactured, the machining error cannot be avoided; 2. in the process that the embedded plate is assembled and welded to the end sealing plate, the embedded plate is easy to deform, and the later-period shear key is difficult to install. After the problems occur, the reworking difficulty is high, and manpower and material resources are consumed.
Therefore, a construction method of a shear key and an embedded plate on a immersed tube joint is needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a construction method of a shear key and an embedded plate on a immersed tube pipe joint, which can realize synchronous construction and manufacture of the shear key and the embedded plate, unify manufacturing errors between the shear key and the embedded plate, avoid the condition that the shear key cannot be installed on the embedded plate, reduce reworking and save manpower and material cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a construction method of a shear key and an embedded plate on a immersed tube joint comprises the following steps:
s1, manufacturing a shear key;
s2, matching and fixing the shear key and the embedded plate, and drilling a fixing hole on the shear key and the embedded plate;
s3, installing a welding sleeve in the fixing hole on the side, away from the shear key, of the embedded plate;
s4, one end of a first fixing piece penetrates through the fixing hole in the shear key and is fixedly installed in the sleeve, so that the embedded plate and the shear key are fixed;
s5, integrally hoisting the fixed shear key and the embedded plate to a mounting position;
and S6, fixedly mounting the embedded plate to an end sealing plate.
Optionally, the step S1 specifically includes:
s11, welding end plates at two ends of the bottom plate;
s12, welding a plurality of guide pipes on the bottom plate between the two end plate areas at intervals;
s13, welding a plurality of vertical rib plates on the bottom plate at intervals;
s14, welding transverse rib plates between the end plate and the vertical rib plate and between two adjacent vertical rib plates;
s15, installing and welding a top plate to one end, away from the bottom plate, of the vertical rib plates, and welding two end parts of the top plate with the end plates;
s16, dividing the area surrounded by the bottom plate, the two end plates and the top plate into a plurality of grid cavities by the plurality of vertical rib plates and the plurality of transverse rib plates, and welding a side plate at an opening of each grid cavity to form the shear key.
Optionally, the step S2 specifically includes:
s21, matching and fixing the bottom plate of the shear key with the embedded plate;
s22, drilling the fixing holes in the embedded plate, the bottom plate, the transverse rib plate and the top plate in sequence along the axial direction of the guide pipe, wherein the positions of the fixing holes correspond to the positions of the guide pipe.
Optionally, the step S4 specifically includes: one end of the first fixing piece penetrates through the fixing hole in the top plate, the fixing hole in the transverse rib plate, the guide pipe and the fixing hole in the embedded plate in sequence to be fixedly arranged in the sleeve.
Optionally, before the step S4, the method further includes: and S41, printing the same steel seal numbers on the corresponding shear keys and the embedded plates.
Optionally, after the step S4, the method further includes: and S42, measuring and adjusting the gap between the shear key and the embedded plate.
Optionally, after the step S3, the method further includes:
s31, arranging a key groove on one surface of the embedded plate, which is in contact with the shear key;
and S32, according to the actual machining size of the key groove, arranging a key matched with the key groove on one surface of the shear key, which is in contact with the embedded plate.
Optionally, after the step S32, the method further includes: s321, measuring and finishing the flatness of the contact surface of the embedded plate and the shear key.
Optionally, the step S6 specifically includes:
s61, assembling clamping codes on the embedded plates to integrally pre-install the embedded plates and the shear keys on the end sealing plates;
s62, welding the embedded plate to the end sealing plate;
s63, one end of the second fixing piece penetrates through the partition plate to be fixedly installed in the sleeve.
Optionally, in the step S62, the pre-embedded board is welded to the end sealing board by specifically adopting a segmented solder relief method.
The invention has the beneficial effects that:
according to the construction method of the shear key and the embedded plate on the immersed tube pipe joint, provided by the invention, the fixed holes are drilled in the shear key and the embedded plate, so that the manufacturing errors of the shear key and the embedded plate are uniform, and the problems that the fixed holes are staggered due to processing errors and the shear key cannot be installed on the embedded plate are effectively avoided. Further, the sleeve is welded on the embedded plate, one end of the first fixing piece penetrates through a fixing hole in the shear key and is fixedly installed in the sleeve, the embedded plate and the shear key are fixed, the fixed shear key and the embedded plate are integrally hoisted to the installation position after fixing, the embedded plate is fixedly welded to the end sealing plate, and therefore synchronous construction and manufacturing of the shear key and the embedded plate are achieved, the problem that the shear key cannot be assembled due to deformation in the embedded plate welding process is avoided, the installation accuracy between the shear key and the embedded plate is guaranteed, reworking is reduced, and manpower and material resources costs are saved.
Drawings
Fig. 1 is a flowchart of main steps of a construction method of a shear key and an embedded plate on a immersed tube joint according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating the detailed steps of a construction method for a shear key and an embedded plate on a immersed tube joint according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a shear key and an embedded plate mounted on a immersed tube joint according to an embodiment of the present invention;
FIG. 4 is a first schematic diagram illustrating a first process for constructing a shear key according to an embodiment of the present invention;
FIG. 5 is a view from the direction A of FIG. 4;
FIG. 6 is a second schematic view of a construction process of a shear key according to an embodiment of the present invention;
FIG. 7 is a view from the direction B in FIG. 6;
FIG. 8 is a third schematic view of a construction process of a shear key provided by an embodiment of the invention;
FIG. 9 is a view from the direction C of FIG. 8;
FIG. 10 is a fourth schematic view of a construction process of a shear key provided by an embodiment of the invention;
FIG. 11 is a view in the direction D of FIG. 10;
FIG. 12 is a schematic structural diagram of a shear key and an embedded plate in cooperation with each other according to an embodiment of the present invention;
FIG. 13 is a first schematic view of a first process for constructing an embedment plate according to an embodiment of the invention;
FIG. 14 is a second schematic view of a second process for constructing an embedment plate according to an embodiment of the invention;
FIG. 15 is a schematic view of a shear key provided by an embodiment of the present invention;
FIG. 16 is a first schematic structural view of a fixed installation of a shear key and an embedded plate according to an embodiment of the present invention;
FIG. 17 is a second schematic structural view of a fixed installation of a shear key and an embedded plate according to an embodiment of the present invention;
FIG. 18 is a view from direction F of FIG. 17;
FIG. 19 is a schematic structural diagram of the integral hoisting of the shear key and the embedded plate to the installation position according to the embodiment of the invention;
fig. 20 is a schematic structural view illustrating a shear key and an embedded plate fixedly mounted on an end plate according to an embodiment of the present invention;
FIG. 21 is a schematic cross-sectional view of G-G of FIG. 20;
fig. 22 is a schematic view illustrating a welding sequence of the embedment plate welded to the end sealing plate according to the embodiment of the invention;
FIG. 23 is a schematic view of an overall structure of a shear key and an embedded plate provided by an embodiment of the invention;
fig. 24 is a schematic view of a split structure of a shear key and an embedded plate provided in an embodiment of the present invention;
fig. 25 is a schematic diagram of a shear key and embedded plate plugging structure provided in the embodiment of the present invention.
In the figure:
100. sinking pipe joints; 101. an end sealing plate; 102. a partition plate; 200. an end steel shell;
1. a shear key; 11. a base plate; 111. a key; 12. an end plate; 13. a guide tube; 14. a vertical rib plate; 15. a transverse rib plate; 16. a top plate; 17. a side plate; 2. pre-burying a plate; 21. a keyway; 3. a fixing hole; 4. a sleeve; 5. a first fixing member; 6. lifting lugs; 7. a lifting rope; 8. card code; 9. a second fixing member; 10. an M56 bolt; 20. a conical rubber plug.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the prior art, the embedded plate 2 is manufactured and installed in advance in the manufacturing process of the immersed tube joint 100, the shear key 1 is manufactured and installed only when the immersed tube joint 100 is constructed outside a field, deformation generated in the process that the embedded plate 2 is welded to the end sealing plate 101 cannot be controlled, and the shear key 1 cannot be installed and matched with the embedded plate 2 at the later stage possibly due to the fact that the embedded plate 2 and the shear key 1 are manufactured and processed separately. As shown in fig. 1 to 25, the method specifically includes:
s1, manufacturing a shear key 1;
s2, matching and fixing the shear key 1 and the embedded plate 2, and drilling a fixing hole 3 on the shear key 1 and the embedded plate 2 in a matching manner;
s3, installing a welding sleeve 4 in a fixing hole 3 on one surface of the embedded plate 2, which is far away from the shear key 1;
s4, one end of a first fixing piece 5 penetrates through a fixing hole 3 in the shear key 1 and is fixedly arranged in the sleeve 4, so that the embedded plate 2 and the shear key 1 are fixed;
s5, integrally hoisting the fixed shear key 1 and the embedded plate 2 to a mounting position;
and S6, fixedly welding the embedded plate 2 to the end sealing plate 101.
Specifically, firstly, the shear key 1 is matched and fixed with the embedded plate 2, and the fixing holes 3 are drilled in the shear key 1 and the embedded plate 2 in a matching manner, so that the manufacturing errors of the shear key 1 and the embedded plate 2 are uniform, and the problems that the fixing holes 3 are staggered due to machining errors and the shear key 1 cannot be installed on the embedded plate 2 are effectively solved. The sleeve 4 is welded on the embedded plate 2, one end of the first fixing piece 5 penetrates through the fixing hole 3 in the shear key 1 and is fixedly installed in the sleeve 4, the embedded plate 2 and the shear key 1 are fixed, the fixed shear key 1 and the embedded plate 2 are further integrally hoisted to the installation position, the embedded plate 2 is fixedly welded to the end sealing plate 101, synchronous construction and manufacturing of the shear key 1 and the embedded plate 2 are achieved, the problem that the shear key 1 cannot be assembled due to deformation in the welding process of the embedded plate 2 is avoided, the installation accuracy between the shear key 1 and the embedded plate is guaranteed, rework is reduced, and manpower and material cost is saved.
Preferably, as shown in fig. 2, fig. 2 is a flowchart illustrating detailed steps of a construction method of a shear key and an embedded plate on a immersed tube joint according to an embodiment of the present invention, and the construction method is described in detail below, and specifically includes the following steps:
s1, manufacturing a shear key 1.
As shown in fig. 3, in this embodiment, three shear keys 1 are disposed at the joint positions of every two adjacent immersed tube pipe joints 100, the three shear keys 1 are divided into two groups and respectively mounted on the end sealing plates 101 of the two adjacent immersed tube pipe joints 100, and the two shear keys 1 on one immersed tube pipe joint 100 clamp the other shear key 1 on the other immersed tube pipe joint 100, so as to perform the shear limiting function, prevent the two adjacent immersed tube pipe joints 100 from relatively moving, and ensure the stability.
Preferably, as shown in fig. 4 to 11, fig. 4 to 11 are schematic diagrams of a construction process of the shear key 1, and the step S1 specifically includes:
s11, welding end plates 12 at two ends of the bottom plate 11;
s12, welding a plurality of guide tubes 13 on the bottom plate 11 between the two end plate 12 areas at intervals;
s13, welding a plurality of vertical rib plates 14 on the bottom plate 11 at intervals;
s14, welding transverse rib plates 15 between the end plate 12 and the vertical rib plates 14 and between two adjacent vertical rib plates 14;
s15, installing and welding the top plate 16 to one end, away from the bottom plate 11, of the vertical rib plates 14, and welding two end parts of the top plate 16 with the end plate 12;
s16, a plurality of vertical rib plates 14 and a plurality of transverse rib plates 15 divide the area surrounded by the bottom plate, the two end plates 12 and the top plate 16 into a plurality of cells, and a side plate 17 is welded at the opening of each cell to form the shear key 1.
Optionally, a plurality of vertical rib plates 14 are arranged to intersect with a plurality of guide tubes 13 at intervals. The transverse rib plates 15 arranged between the end plate 12 and the vertical rib plates 14 fix the end plate 12 and the vertical rib plates 14 into a whole, the transverse rib plates 15 arranged between two adjacent vertical rib plates 14 fix the vertical rib plates 14 into a whole, and finally the top plate 16 is welded to the vertical rib plates 14 and the top of the end plate 12 and the side plate 17 for sealing, so that the hollow and closed integrated shear key 1 is formed, the structural strength of the shear key 1 is guaranteed, the construction material is saved, and the weight of the shear key 1 is reduced.
S2, the shear key 1 and the embedded plate 2 are matched and fixed, and a fixing hole 3 is drilled in the shear key 1 and the embedded plate 2 in a matched mode.
For example, as shown in fig. 12, after the blank of the part of the embedded plate 2 is blanked, the embedded plate 2 and the bottom plate 11 of the shear key 1 are positioned and fixed, and a drilling machine is used to drill the fixing holes 3 integrally on the embedded plate 2 and the shear key 1, in this embodiment, the fixing holes 3 are screw holes, and the screw holes are provided in plurality, and the screw holes are arranged on the embedded plate 2 at intervals. In other embodiments, the fixing hole 3 may also be a light hole, and is not limited to this embodiment.
Optionally, step S2 specifically includes:
s21, matching and fixing the bottom plate 11 of the shear key 1 and the embedded plate 2;
s22, drilling fixing holes 3 in the embedded plate 2, the bottom plate 11, the transverse rib plate 15 and the top plate 16 in sequence along the axial direction of the guide pipe 13, wherein the positions of the fixing holes 3 correspond to the positions of the guide pipe 13.
During drilling, a drilling machine is used for aligning to the through hole of the guide pipe 13, and the guide pipe 13 is used as a guide to sequentially drill the fixing holes 3 on the pre-embedded plate 2, the bottom plate 11, the transverse rib plate 15 and the top plate 16, namely after drilling is finished, the fixing holes 3 on the pre-embedded plate 2, the bottom plate 11, the transverse rib plate 15 and the top plate 16 and the through hole in the guide pipe 13 are located on the same straight line.
And S3, installing and welding a sleeve 4 in a fixing hole 3 on one surface of the embedded plate 2, which is far away from the shear key 1.
As shown in fig. 13-14, specifically, the outer periphery of the sleeve 4 is provided with an external thread, the inner wall of the sleeve 4 is provided with an internal thread, and one end of the sleeve 4 is screwed into the threaded hole of the embedded plate 2 and is welded and fixed with the embedded plate 2 to ensure that the sleeve 4 is not loosened. The length of the sleeve 4 screwed into the screw hole is less than the depth of the screw hole, namely the fitting and fixing of the embedded plate 2 and the bottom plate 11 of the shear key 1 are not influenced by the installation of the sleeve 4. Further, sleeve 4 is equipped with a plurality ofly, and a plurality of sleeves 4 and a plurality of screw one-to-one correspond the installation.
Further, after step S3, the method further includes:
s31, arranging a key groove 21 on one surface of the embedded plate 2, which is in contact with the shear key 1;
and S32, according to the actual machining size of the key groove 21, forming a key 111 matched with the key groove 21 on one surface of the shear key 1, which is in contact with the embedded plate 2.
As shown in fig. 13-15, the machining of the key groove 21 avoids the position of the fixing hole 3, and after the machining of the key groove 21 is completed, the actual size of the key groove 21 is measured to machine the key 111 on the shear key 1, that is, the machining of the key 111 must be performed according to the actual machined size of the key groove 21 to ensure uniform deviation and ensure the installation accuracy of the two. When the embedded plate 2 and the bottom plate 11 of the shear key 1 are matched and fixed, the key groove 21 and the key 111 structure can play a primary fixing role. Of course, the sequence of processing the key slot 21 and the key 111 may be different, and after one of the processing is completed, the other is processed according to the size of the first processing, which is not limited in this embodiment. In other embodiments, the key 111 may be machined on the embedded plate 2, and the key groove 21 may be machined on the bottom plate 11 of the shear key 1 according to the actual machining size of the key 111.
Optionally, after step S32, the method further includes: and S321, measuring and finishing the flatness of the contact surface of the embedded plate 2 and the shear key 1.
The flatness of the contact surface of the embedded plate 2 and the shear key 1 is maintained, so that the flatness of the joint surface between the shear key 1 and the embedded plate 2 is improved, and the final installation quality of the shear key 1 is ensured. In the embodiment, a special flatness measuring instrument is used for measuring the flatness of the contact surface of the embedded plate 2 and the contact surface of the shear key 1 respectively, manufacturing precision measuring tables of the embedded part 2 and the shear key 1 are filled in, uneven parts are trimmed, the final flatness is required to be less than or equal to 1mm, and the final installation quality of the shear key 1 and the embedded plate 2 is ensured.
S4, one end of the first fixing piece 5 penetrates through a fixing hole 3 in the shear key 1 to be fixedly installed in the sleeve 4, so that the embedded plate 2 and the shear key 1 are fixed.
Specifically, as shown in fig. 11 to 16, step S4 includes: one end of the first fixing piece 5 is sequentially arranged in the sleeve 4 in a penetrating manner through the fixing hole 3 on the top plate 16, the fixing hole 3 on the transverse rib plate 15, the guide pipe 13 and the fixing hole 3 on the embedded plate 2. In this embodiment, the first fixing member 5 is a bolt, and one end of the bolt is inserted through the screw holes on the top plate 16 and the transverse rib plate 15, and the screw holes on the guide tube 13 and the embedded plate 2 are threadedly mounted in the sleeve 4. The bolts are arranged in a plurality and are screwed with the sleeves 4 in a one-to-one correspondence manner, so that the embedded plate 2 and the shear key 1 are fixed.
Optionally, before step S4, the method further includes: and S41, stamping the same steel seal numbers on the corresponding shear keys 1 and the embedded plates 2. With the design, when the shear keys 1 are installed formally, the shear keys 1 and the embedded plates 2 are installed correspondingly according to the serial numbers, so that the corresponding shear keys 1 and the embedded plates 2 can be installed correspondingly, the problem that the shear keys 1 cannot be installed due to different processing errors between each group of shear keys 1 and the embedded plates 2 is solved, and the installation success rate is improved.
Further, after step S4, the method further includes: and S42, measuring and adjusting the gap between the shear key 1 and the embedded plate 2. The bolt is screwed to adjust the size of the gap between the shear key 1 and the embedded plate 2, after the gap is qualified, the shear key 1 and the embedded plate 2 are integrally switched to the next procedure, the bolt cannot be detached in the process, and the problem that the shear key 1 cannot be installed on the embedded plate 2 due to deformation of the embedded plate 2 in the welding and transferring processes is solved.
S5, integrally hoisting the fixed shear key 1 and the embedded plate 2 to a mounting position.
In this embodiment, in the workshop manufacturing stage, the main structure of the steel shell block is manufactured and molded to form the immersed tube pipe joint 100, and the end steel shell 200 structure at the end of the steel shell block is not installed first, so as to avoid interference in installation of the shear key 1 and the embedded plate 2. Specifically, as shown in fig. 17 to 19, a lifting lug 6 is mounted on the shear key 1, a lifting rope 7 is fastened on the lifting lug 6, and the shear key 1 and the embedded plate 2 are integrally lifted to a corresponding mounting position on an end sealing plate 101 at the end of the immersed tube pipe joint 100 by using a crane.
And S6, fixedly welding the embedded plate 2 to the end sealing plate 101.
Optionally, as shown in fig. 20 to 23, step S6 specifically includes:
s61, assembling the clamp codes 8 on the embedded plate 2 to integrally pre-install the embedded plate 2 and the shear key 1 on the end sealing plate 101;
s62, welding the embedded plate 2 to the end sealing plate 101;
s63, one end of the second fixing piece 9 penetrates through the partition plate 102 and is fixedly arranged in the sleeve 4.
Specifically, a reference line is provided on the end plate 101, and the pre-buried plate 2 is positioned and assembled by the reference line. The end sealing plate 101 is provided with a mounting opening, and the embedded plate 2 is embedded in the mounting opening. The card sign indicating number 8 is equipped with a plurality ofly, and a plurality of card sign indicating numbers 8 set up along 2 border intervals of pre-buried board to pretension pre-buried board 2 and end shrouding 101. And after the precision of the embedded plate 2 is qualified, welding the embedded plate 2 to the end sealing plate 101. The second fixing part 9 is a double-threaded screw, one end of the double-threaded screw penetrates through the partition plate 102 and is fixed in the sleeve 4 in a threaded mode, the depth of the double-threaded screw in the sleeve 4 is 85mm, and interference with a bolt installed in the sleeve 4 is avoided. Through the welding and the fixing action of the double-head screw, the integral installation of the embedded plate 2 and the shear key 1 on the end sealing plate 101 is realized, and compared with the existing mode of respectively constructing and manufacturing the shear key 1 and the embedded plate 2, the installation precision between the shear key 1 and the embedded plate 2 is ensured, the reworking is reduced, and the manpower and material resource cost is saved.
Preferably, in step S62, the pre-embedded plate 2 is welded to the end sealing plate 101 by a segmented back welding method, so that the condition that the pre-embedded plate 2 is welded and deformed due to heat concentration is avoided. Specifically, as shown in fig. 22, the area marked with 1 in fig. 22 is welded, the area marked with 2 in fig. 22 is welded, and the area marked with 3 in fig. 22 is welded, so that the embedded plate 2 and the end plate 101 are welded and fixed.
Further, after welding is completed, the flatness measuring instrument is used again to carry out flatness measurement acceptance on the contact surface of the shear key 1 and the contact surface of the embedded plate 2, and the flatness change condition after welding is checked to ensure that the flatness is less than or equal to 1mm.
As shown in fig. 3, fig. 24 and fig. 25, when the immersed tube coupling 100 is formed by manufacturing the steel shell block in a workshop in the above process, the end steel shell 200 at the end of the immersed tube coupling 100 is not installed, the shear key 1 and the embedded plate 2 are constructed and manufactured synchronously, after the construction and manufacturing of the shear key 1 and the embedded plate 2 are completed, i.e., the welding temperature is cooled, the bolt (i.e., the first fixing member 5) is removed, the shear key 1 is installed and removed by the crane, after the shear key 1 is removed, the screw hole (i.e., the fixing hole 3) on the embedded plate 2 is blocked and protected by the M56 bolt 10, the screw hole (i.e., the fixing hole 3) on the shear key 1 is blocked and protected by the conical rubber plug 20, so that impurities are prevented from entering the inside in the moving or transporting process, and the M56 bolt 10 and the conical rubber plug 20 are finished products, which is very convenient. Of course, in other embodiments, other structures (for example, sponge) may be used to block and protect the sleeves 4 on the embedded plate 2 and the screw holes (i.e., the fixing holes 3) on the shear key 1, which is not limited to this embodiment.
After the plugging is completed, the immersed tube pipe joint 100 is transported to be assembled and butted in an external field to form a steel shell immersed tube, the M56 bolt 10 on the embedded plate 2 and the conical rubber plug 20 on the shear key 1 are taken down, the shear key 1 with the corresponding steel seal number is hoisted to the embedded plate 2 through a crane according to the steel seal number marked on the embedded plate 2, the key 111 on the shear key 1 is butted and installed in the key groove 21 on the embedded plate 2, and the shear key 1 and the embedded plate 2 are fixed through the bolt (namely, the first fixing piece 5), so that the final formal assembly of the shear key 1 and the embedded plate 2 is completed, and the method is very convenient and efficient.
The manufacturing and welding of the other shear keys 1 and the embedded plates 2 on the immersed tube joint 100 are the same as the manufacturing and installation methods of the shear keys 1 and the embedded plates 2, and the details are not repeated here.
Therefore, according to the construction method of the shear key and the embedded plate on the immersed tube pipe joint, provided by the invention, the fixing holes 3 are drilled in the shear key 1 and the embedded plate 2 in a matching manner, so that the manufacturing errors of the shear key and the embedded plate are unified, and the problems that the fixing holes 3 are staggered due to processing errors, and the shear key 1 cannot be installed on the embedded plate 2 are effectively avoided. Further, a sleeve 4 is welded on the embedded plate 2, one end of a first fixing piece 5 penetrates through a fixing hole 3 in the shear key 1 and is fixedly installed in the sleeve 4, the embedded plate 2 and the shear key 1 are fixed, the fixed shear key 1 and the embedded plate 2 are integrally hoisted to an installation position, and the embedded plate 2 is fixedly welded to the end sealing plate 101, so that synchronous construction and manufacturing of the shear key 1 and the embedded plate 2 are achieved, the problem that the shear key 1 cannot be assembled due to deformation in the welding process of the embedded plate 2 is avoided, the installation accuracy between the shear key 1 and the embedded plate is guaranteed, rework is reduced, and manpower and material cost are saved.
After the key groove 21 is machined, the actual size of the key groove is measured to machine the key 111 on the shear key 1, that is, the machining of the key 111 must be performed according to the actual machined size of the key groove 21 to ensure uniform deviation and ensure the installation accuracy of the key groove and the key groove.
The transverse rib plates 15 arranged between the end plate 12 and the vertical rib plates 14 fix the end plate 12 and the vertical rib plates 14 into a whole, the transverse rib plates 15 arranged between two adjacent vertical rib plates 14 fix the vertical rib plates 14 into a whole, finally, the top plates 16 are welded to the top parts of the vertical rib plates 14 and the end plate 12, and the side plates 17 are sealed, so that the hollow and closed integrated shear key 1 is formed, the structural strength of the shear key 1 is guaranteed, the construction materials are saved, and the weight of the shear key 1 is reduced.
After the shear key 1 and the embedded plate 2 are manufactured in a matched mode, the same steel seal numbers are marked on the corresponding shear key 1 and the corresponding embedded plate 2, and the shear key 1 and the embedded plate 2 are connected into a whole through bolts (namely the first fixing pieces 5). With this design, prevent that pre-buried plate 2 from welding deformation and the deformation of transportation in-process on end shrouding 101, formally install shear force key 1 after immersed tube coupling 100 location, install according to serial number and corresponding pre-buried plate 2 one-to-one when shear force key 1 installs, guaranteed that corresponding shear force key 1 can correspond the installation with pre-buried plate 2, avoided leading to the unable problem of installing of shear force key 1 because of the difference of machining error between every group shear force key 1 and pre-buried plate 2, improved the installation success rate.
The embedded plate 2 is welded to the end sealing plate 101 by adopting a segmented welding-back method, so that the condition that the embedded plate 2 is deformed due to heat concentration is avoided.
It should be understood that the above description is only a preferred embodiment of the present invention, and that various changes in the details of implementation and application can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. A construction method for a shear key and an embedded plate on a immersed tube joint is characterized by comprising the following steps:
s1, manufacturing a shear key (1);
s2, matching and fixing the shear key (1) and the embedded plate (2), and drilling a fixing hole (3) on the shear key (1) and the embedded plate (2);
s3, welding a sleeve (4) in the fixing hole (3) on the side, away from the shear key (1), of the embedded plate (2);
s4, one end of a first fixing piece (5) penetrates through the fixing hole (3) in the shear key (1) and is fixedly installed in the sleeve (4) so as to fix the embedded plate (2) and the shear key (1);
s5, integrally hoisting the fixed shear key (1) and the embedded plate (2) to a mounting position;
s6, fixedly welding the embedded plate (2) to an end sealing plate (101);
the step S1 specifically includes:
s11, welding end plates (12) at two ends of the bottom plate (11);
s12, welding a plurality of guide pipes (13) on the bottom plate (11) between the two end plate (12) areas at intervals;
s13, welding a plurality of vertical rib plates (14) on the bottom plate (11) at intervals;
s14, transverse rib plates (15) are welded between the end plate (12) and the vertical rib plates (14) and between two adjacent vertical rib plates (14);
s15, welding a top plate (16) to one end, away from the bottom plate (11), of the vertical rib plates (14), and welding two end parts of the top plate (16) with the end plate (12);
s16, dividing an area surrounded by the bottom plate (11), the two end plates (12) and the top plate (16) into a plurality of lattice cavities by the vertical rib plates (14) and the transverse rib plates (15), and welding side plates (17) at openings of the lattice cavities to form the shear key (1).
2. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 1, wherein the step S2 specifically comprises:
s21, matching and fixing the bottom plate (11) of the shear key (1) with the embedded plate (2);
s22, sequentially drilling the fixing holes (3) on the embedded plate (2), the bottom plate (11), the transverse rib plate (15) and the top plate (16) along the axial direction of the guide pipe (13), wherein the positions of the fixing holes (3) correspond to the positions of the guide pipe (13).
3. The construction method for the shear key and the embedded plate on the immersed tube joint according to claim 2, wherein the step S4 specifically comprises: one end of the first fixing piece (5) penetrates through the fixing hole (3) in the top plate (16), the fixing hole (3) in the transverse rib plate (15), the guide pipe (13) and the fixing hole (3) in the embedded plate (2) in sequence and is fixedly installed in the sleeve (4).
4. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 1, wherein before the step S4, the method further comprises: s41, stamping the same steel seal numbers on the corresponding shear keys (1) and the embedded plates (2).
5. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 1, wherein after the step S4, the method further comprises: and S42, measuring and adjusting the gap between the shear key (1) and the embedded plate (2).
6. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 1, wherein after the step S3, the method further comprises:
s31, arranging a key groove (21) on one surface of the embedded plate (2) contacting with the shear key (1);
and S32, according to the actual machining size of the key groove (21), arranging a key (111) matched with the key groove (21) on one surface, contacting the embedded plate (2), of the shear key (1).
7. The method for constructing the shear key and the embedded plate on the immersed tube joint as claimed in claim 6, further comprising, after the step S32: s321, measuring and finishing the flatness of the contact surface of the embedded plate (2) and the shear key (1).
8. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 1, wherein the step S6 specifically comprises:
s61, assembling a clamping code (8) on the embedded plate (2) to integrally pre-install the embedded plate (2) and the shear key (1) on the end sealing plate (101);
s62, welding the embedded plate (2) to the end sealing plate (101);
s63, one end of the second fixing piece (9) penetrates through the partition plate (102) to be fixedly installed in the sleeve (4).
9. The construction method of the shear key and the embedded plate on the immersed tube joint according to claim 8, wherein the step S62 is to weld the embedded plate (2) to the end sealing plate (101) by a method of welding back in sections.
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| CN202011043495.8A CN112222774B (en) | 2020-09-28 | 2020-09-28 | Construction method for shear key and embedded plate on immersed tube joint |
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| CN202011043495.8A CN112222774B (en) | 2020-09-28 | 2020-09-28 | Construction method for shear key and embedded plate on immersed tube joint |
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| JP2668184B2 (en) * | 1992-12-25 | 1997-10-27 | 五洋建設株式会社 | How to launch a submerged box |
| CN106988346B (en) * | 2017-03-24 | 2019-12-31 | 中国交通建设股份有限公司 | Immersed tube tunnel final joint, prefabricating method and mounting method |
| CN207419530U (en) * | 2017-08-30 | 2018-05-29 | 中交公路规划设计院有限公司 | A kind of bolt cuts combined shear resistance system |
| CN107724427B (en) * | 2017-10-18 | 2019-07-12 | 上海市隧道工程轨道交通设计研究院 | A kind of connection method of sinking tunnel section connector |
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Application publication date: 20210115 Assignee: GUANGZHOU WENCHONG SHIPYARD Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980037695 Denomination of invention: A construction method for shear keys and embedded plates on immersed pipe joints Granted publication date: 20221021 License type: Common License Record date: 20230706 |
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