CN106801610B - Segment-to-segment connection joint using stacked structure and method of connection using the same - Google Patents
Segment-to-segment connection joint using stacked structure and method of connection using the same Download PDFInfo
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- CN106801610B CN106801610B CN201710145121.9A CN201710145121A CN106801610B CN 106801610 B CN106801610 B CN 106801610B CN 201710145121 A CN201710145121 A CN 201710145121A CN 106801610 B CN106801610 B CN 106801610B
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- 210000001503 joint Anatomy 0.000 claims abstract description 47
- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 27
- 235000014676 Phragmites communis Nutrition 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 32
- 238000005452 bending Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 244000273256 Phragmites communis Species 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
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- Mutual Connection Of Rods And Tubes (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a segment-to-segment connection joint using a stacked structure and a method of connection using the same, the joint comprising: the first connecting piece is embedded in a first segment of two adjacent segments; and the second connecting piece is embedded in a second segment block in the two adjacent segment blocks and is matched with the first connecting piece, and the first segment block and the second segment block slide relatively to each other so that the second connecting piece is clamped in the first connecting piece to realize the butt joint of the first segment block and the second segment block. The connecting joint adopts the first connecting piece and the second connecting piece to clamp and fix the first pipe piece block and the second pipe piece block, and only the second pipe piece block needs to slide relative to the first pipe piece block during installation, so that One-step (One-Pass) simple assembly is realized, the installation is time-saving and labor-saving, the assembly speed of the pipe pieces can be increased, and the construction time is saved.
Description
Technical Field
The invention relates to a connecting piece between pipe piece blocks in a single-ring pipe piece in tunnel engineering, in particular to a connecting joint between pipe piece blocks with a laminated structure and a connecting method using the connecting joint.
Background
The shield tunnel is a structure formed by assembling a plurality of prefabricated pipe pieces through longitudinal joints and circumferential joints, wherein the single-ring pipe pieces are formed by butting a plurality of pipe piece blocks through the circumferential joints, each ring pipe piece is connected through the longitudinal joints in a butting mode, and the current longitudinal joints and the circumferential joints are mainly connected through bolts.
The prior chinese patent 1 (application publication No. CN105649648A, entitled duct piece connecting structure of quasi-rectangular shield tunnel and construction method thereof) discloses: all set up the bolt that is used for two adjacent section of jurisdiction piecemeal interconnect at the seam crossing of a plurality of section of jurisdiction piecemeal, set up every bolt in the same position of distance for the interior anchor ring face of whole ring section of jurisdiction. Chinese prior patent 2 (application publication No. CN203796279U, the invention provides a shear structure named as a composite segment) discloses: the shear-resistant structure improves the shear-resistant bearing capacity of the composite segment joint by arranging double rows of annular bolt holes on the annular joint and tenons and grooves matched with the double rows of annular bolt holes.
Foretell section of jurisdiction interblock connection structure is bolted connection and connects, and bolted connection has following defect: the bolt connection management is difficult, and comprises joint rigidity control, torque control of introduced axial force and torque coefficient control; the bolt connection operation is time-consuming, so that the construction time is longer; the positive bending rigidity of the segment ring connected by the bolt is strong, and the segment ring deforms greatly due to low negative bending resistance; the bolt holes and the bolts are easy to leak water, and the sections of the bolt holes are easy to damage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a segment block connecting joint with a laminated structure and a connecting method thereof, and solves the problems that in the prior art, when segment blocks are connected by bolts, the management is difficult, the operation takes long time, the construction time is long, the bolt complex bending resistance is low, the segment ring is greatly deformed, water leaks easily at the bolt position, the cross section of the bolt hole is easily damaged, and the like.
The technical scheme for realizing the purpose is as follows:
the invention provides a segment block-to-segment connection joint using a stacked structure, comprising:
the first connecting piece is embedded in a first segment of two adjacent segments; and
the second connecting piece is buried in a second pipe piece block in two adjacent pipe piece blocks and matched with the first connecting piece, and the first pipe piece block and the second pipe piece block slide relatively to each other so that the second connecting piece is clamped in the first connecting piece to realize butt joint of the first pipe piece block and the second pipe piece block.
The connecting joint adopts the first connecting piece and the second connecting piece to clamp and fix the first pipe piece block and the second pipe piece block, and only the second pipe piece block needs to slide relative to the first pipe piece block during installation, so that One-step (One-Pass) simple assembly is realized, the installation is time-saving and labor-saving, the assembly speed of the pipe pieces can be increased, and the construction time is saved. First connecting piece and second connecting piece bury underground in the section of jurisdiction piece that corresponds, can not lead to the fact the damage to the internal surface of section of jurisdiction piece for the internal surface of the section of jurisdiction ring that the butt joint formed is level and smooth, has avoided seting up easy water leakage and the easy damaged problem that the bolt hole produced. On the binding face of the segment block that first connecting piece and second connecting piece set up for positive, negative bending of segment ring has same rigidity, makes segment ring rigidity also strong, thereby has avoided leading to the low big problem that makes segment ring warp of negative bending resistance because the bolt sets up including on the anchor ring.
The invention further improves the segment block connecting joint with the stacked structure, wherein an opening is reserved on the binding surface of the first segment block by the first connecting piece, and an accommodating groove communicated with the opening is arranged on the first connecting piece;
a connecting rod which protrudes outwards and is matched with the opening is formed on the binding surface of the second pipe piece block by the second connecting piece, and a connector matched with the accommodating groove is formed at the end part of the connecting rod;
when the first pipe piece block and the second pipe piece block slide relatively, the connecting rod is arranged in the opening, and the connecting head is clamped in the accommodating groove, so that the first pipe piece block and the second pipe piece block are in butt joint.
The invention uses the segment block of the laminated structure to connect the further improvement to lie in, hold the trough bottom of the trough to have horizontal poles while being said, the end of the said horizontal pole connects with the base vertically;
the connecting rod part of the second connecting piece is anchored in the second segment block, and the end part of the connecting rod anchored in the second segment block is vertically connected with a support.
The invention uses the segment block of the laminated structure to connect the piecing further improvement to lie in, the said first link piece is the lamellar structure, the said first segment block is buried and connected the first link piece of multiple lamination;
the second connecting piece is of a sheet structure, and a plurality of second connecting pieces which are connected in a stacked mode are buried in the second segment block.
The invention further improves the segment-to-segment connecting joint with the stacked structure, wherein the first connecting piece is arranged perpendicular to the binding surface of the first segment, and the second connecting piece is arranged perpendicular to the binding surface of the second segment; or
The first connecting piece is obliquely embedded in the first segment block, and the second connecting piece is obliquely embedded in the second segment block.
The invention also provides a method for connecting the segment blocks by using the segment block-to-segment connecting joint with the laminated structure, which comprises the following steps:
providing an inter-block connecting joint, wherein the inter-block connecting joint comprises a first connecting piece and a second connecting piece matched with the first connecting piece;
embedding the first connecting piece in a first segment block of two adjacent segment blocks;
embedding the second connecting piece in a second segment of two adjacent segments; and
and relatively sliding the first pipe segment block and the second pipe segment block to enable the second connecting piece to be clamped in the first connecting piece, so that the first pipe segment block and the second pipe segment block are in butt joint.
The method for connecting the pipe piece blocks by using the inter-pipe piece block connecting joint of the laminated structure is further improved in that an opening is reserved on the binding surface of the first pipe piece block by the first connecting piece, and a containing groove communicated with the opening is formed in the first connecting piece; a connecting rod which protrudes outwards and is matched with the opening is formed on the binding surface of the second pipe piece block by the second connecting piece, and a connector matched with the accommodating groove is formed at the end part of the connecting rod;
sliding the first segment piece and the second segment piece relative to each other comprises:
will the connecting rod with the connector is arranged in the opening with one side of holding the groove, relative slip first pipe piece with the second pipe piece makes the connecting rod with the connector is slided to be located the opening with hold the inslot, through the connector card is located thereby it realizes to hold the inslot first pipe piece with second pipe piece butt joint.
The invention utilizes the method of connecting the pipe piece blocks by the connecting joint between the pipe piece blocks with the laminated structure to be further improved in that the bottom of the containing groove of the first connecting piece is provided with a cross rod, and the end part of the cross rod is vertically connected with a base; the connecting rod part of the second connecting piece is anchored in the second segment block, and the end part of the connecting rod anchored in the second segment block is vertically connected with a support;
when the first connecting piece is embedded in the first segment block, the base is fixedly connected with the steel bars in the first segment block;
and when the second connecting piece is buried in the second segment block, the support is fixedly connected with the steel bars in the second segment block.
The invention utilizes the method of connecting the pipe piece blocks by using the inter-pipe piece block connecting joint of the laminated structure to be further improved in that the first connecting piece is of a sheet structure, and a plurality of first connecting pieces which are connected in a laminated manner are embedded in the first pipe piece block;
the second connecting piece is of a sheet structure, and a plurality of second connecting pieces which are connected in a stacked mode are buried in the second segment block.
The present invention is further improved in the method of connecting duct pieces using an inter-duct piece block connection joint of a stacked structure, in that when the first connection member and the second connection member are buried:
arranging the first connecting piece perpendicular to the binding surface of the first tube piece block, and arranging the second connecting piece perpendicular to the binding surface of the second tube piece block; or
And embedding the first connecting piece in the first segment block in an inclined manner, and embedding the second connecting piece in the second segment block in an inclined manner.
Drawings
Fig. 1 is a schematic perspective view of a circular splicing structure of two ring tube sheets.
Fig. 2 is a perspective view of a first tube sheet block with an inter-block connection joint of the present invention.
FIG. 3 is a perspective view of a first segment with an inter-ring connection joint of the present invention.
Fig. 4 is a schematic view of the construction of the present invention using a stacked configuration of inter-segment connection joints.
Fig. 5 is a schematic view of the structure of the present invention in which the inter-segment connection joints of the stacked structure are embedded in the segment.
FIG. 6 is a schematic view of the structure of the present invention utilizing an inter-block connection joint to connect two tube segments.
Fig. 7 is a side view of the first tube piece of fig. 5.
Fig. 8 is a side view of the second tube piece of fig. 5.
Fig. 9 is a schematic structural view of the segment-to-segment connection joint of the present invention.
FIG. 10 is a cross-sectional view of the first plug in the inter-ring joint.
FIG. 11 is a schematic view of the configuration of the inter-ring connection joint mounted to a segment.
Fig. 12 and 13 are exploded views showing the connection process of two grommet plates.
Fig. 14 is a partial side view of a first ring segment.
Fig. 15 is a partial side view of a second ring segment.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The invention provides a segment block connecting joint using a laminated structure and a connecting method using the segment block connecting joint, and particularly aims to improve a connecting structure of prefabricated segments in a shield tunnel, and referring to fig. 1, each ring of segments in the tunnel is formed by butting and connecting a plurality of segment blocks, and two adjacent ring tubes are spliced and connected. When the rings and the blocks of the duct piece are connected by bolts, hand holes need to be reserved on the inner side surface close to the duct piece to facilitate operation, the completeness of the duct piece structure is influenced by the arrangement of the hand holes, and additional filling is needed subsequently, so that the construction process is increased; the inter-block connecting joint is arranged on the joint surface between the duct piece blocks, and the inter-ring connecting joint is arranged on the splicing surface between the duct piece rings, so that the structural integrity of the inner surface of the duct piece is not influenced, the inner surface of the duct piece is smooth, and the subsequent filling process is saved. The bolt connection operation is time-consuming, so that the construction time is longer, the One-Pass (One-Pass) simple assembly is realized by the inter-block connecting joint and the inter-ring connecting joint, the assembly is time-saving and labor-saving, the assembly speed of the duct piece can be increased, and the construction time is saved. When the pipe piece is connected through the bolts, the bolts are arranged on the inner surface of the pipe piece, so that the positive bending rigidity of the pipe piece ring is high, the negative bending resistance is low, the deformation of the pipe piece ring is large, the inter-block connecting joint is arranged in the middle of the binding surface of the pipe piece block, the positive bending and the negative bending of the pipe piece ring have the same rigidity, the rigidity of the pipe piece ring is also high, and the problem that the negative bending resistance is low, so that the deformation of the pipe piece ring is large, is solved. The water leakage is easy to occur at the bolt holes and the bolts, and the sections of the bolt holes are easy to damage. The present invention will be described with reference to the drawings, using a stacked configuration of inter-segment block joints and inter-segment ring joints.
As shown in fig. 1, a circular splicing structure of two ring pipe pieces is shown, a first ring pipe piece 11 is spliced and connected with a second ring pipe piece 12, the first ring pipe piece 11 and the second ring pipe piece 12 are formed by butting and connecting a plurality of pipe piece blocks, and a first pipe piece block 21 and a second pipe piece block 22 in two adjacent pipe piece blocks are butted and connected. The first ring segment 11 and the second ring segment 12 are connected by splicing through an inter-ring connecting joint, and the first segment block 21 and the second segment block 22 are connected by butt joint through an inter-block connecting joint. Of course, although fig. 1 shows a circular segment, the inter-ring connection joint and the inter-block connection joint of the present invention are not limited to the connection of a circular segment, but can also be applied to the connection of segments of other shapes, such as a quasi-rectangular segment, an oval segment, etc.
As shown in fig. 2 and 3, the structure of the first tube sheet 21 is shown, and the structure of the first tube sheet 21 is taken as an example to explain the structure of the tube sheet, and the structure of each tube sheet is the same as that of the first tube sheet 21. The shape of the first tube piece 21 is designed according to the shape of the whole-ring tube piece, the first tube piece 21 is provided with a binding surface 211, the binding surface 211 is two side surfaces located on the ring direction, an inter-block connecting joint 30 is arranged on the binding surface 211, and the binding surface of the binding surface 211 and the binding surface of another adjacent tube piece are bound to realize the butt joint of the two tube pieces. The first segment block 21 further includes an inner side 212 and an outer side 213, wherein the inner side 212 is located inside the full-ring segment, and the outer side 213 is located outside the full-ring segment. The first segment block 21 further includes a splicing surface 111, the splicing surface 111 is two side surfaces located in the longitudinal direction, the inter-ring connection joint 40 is arranged on the splicing surface, and the splicing surface 111 is spliced and connected with the splicing surface of another adjacent whole ring segment. The inter-block connecting joints and the inter-ring connecting joints form a connecting structure of the duct pieces, and quick connection of the duct pieces and quick assembly of the duct piece blocks are realized.
The present invention will be described with reference to a segment-to-segment connection joint using a stacked structure and a method of connecting segments using the same.
As shown in fig. 4, the segment-to-segment connection joint 30 using the stacked structure of the present invention includes a first connection member 31 and a second connection member 32, as shown in fig. 5, the first connection member 31 is embedded in a first segment 21 of two adjacent segments, and the second connection member 32 is embedded in a second segment 22 of the two adjacent segments and is adapted to the first connection member 31, and when the first segment 21 and the second segment 22 are connected in a butt joint manner, as shown in fig. 6, the first segment 21 and the second segment 22 are relatively slid and the second connection member 32 is engaged with the first connection member 31, so that the first segment 21 and the second segment 22 are connected in a butt joint manner. When the first pipe piece block 21 and the second pipe piece block 22 slide relatively, if the first pipe piece block 21 and the second pipe piece block 22 are not fixed, the second connecting piece 32 of the second pipe piece block 22 can be placed on one side of the first connecting piece 31, and then the first pipe piece block 21 or the second pipe piece block 22 is pushed, so that the second connecting piece 32 is clamped in the first connecting piece 31; if one of the first and second segment blocks 21 and 22 is already fixed, the other non-fixed segment block may be pushed so that the second connector 32 is caught in the first connector 31.
The second connecting piece 32 is slidably clamped in the first connecting piece 31, so that butt joint between two adjacent duct piece blocks is realized, the operation is simple and convenient during installation, One-step (One-Pass) simple assembly is realized, the time and labor are saved during installation, the assembly speed of the duct pieces can be increased, and the construction time is saved. And the first connecting piece 31 and the second connecting piece 32 also play a role in positioning, the mounting position of the pipe piece block can be positioned, the second connecting piece 32 is correspondingly arranged on one side of the first connecting piece 31 during mounting, and then the second connecting piece 32 and the first connecting piece 31 are clamped in a sliding mode.
As shown in fig. 4 and 5, the first connecting member 31 has an opening 311 on the joint surface 211 of the first tube sheet block 21, and the first connecting member 31 has a receiving slot 312 communicated with the opening 311; the second connecting member 32 is formed with a connecting rod 321 protruding outwards and matching with the opening 311 on the abutting surface 221 of the second tube sheet block 22, a connecting head 322 matching with the accommodating groove 312 is formed at the end of the connecting rod 321, and the size of the connecting head 322 is larger than that of the opening 311, so that the connecting head 322 can be limited and fixed by the opening 311 in the circumferential direction after being clamped in the accommodating groove 312. When the first tube piece 21 and the second tube piece 22 slide relatively, the connecting rod 321 is placed in the opening 311, and the connecting head 322 is clamped in the accommodating groove 312, so that the first tube piece 21 and the second tube piece 22 are in butt joint.
Furthermore, a cross bar 313 is arranged at the bottom of the accommodating groove 312 of the first connecting piece 31, a base 314 is vertically connected to the end of the cross bar 313, when the first connecting piece 31 is embedded in the first duct piece 21, the accommodating groove 312 and the opening 311 of the first connecting piece 31 are arranged at the joint surface of the first duct piece 21, the accommodating groove 312 is communicated with the outside of the joint surface through the opening 311, the whole first connecting piece 31 is completely embedded in the first duct piece 21, the anchoring strength of the first connecting piece 31 is increased through the vertically connected base 314, and the structural strength of the first connecting piece 31 embedded in the duct piece is improved. The connecting rod 321 of the second connecting member 32 is partially anchored in the second tube sheet 22, and the end of the connecting rod 321 anchored in the second tube sheet 22 is vertically connected with a support 323, and the support 323 is used for increasing the anchoring strength of the second connecting member 32 and improving the structural strength of the second connecting member. The base 314 and the support 323 can be welded with the steel bars in the segment block when being buried, so that the anchoring strength of the first connecting piece and the second connecting piece is strengthened.
As a preferred embodiment of the present invention, as shown in fig. 7 and 8, the first connecting member 31 is a sheet-shaped structure, a plurality of first connecting members 31 connected in a stacked manner are embedded in the first pipe piece block 21, and the plurality of first connecting members 31 are aligned and fixedly connected and embedded in the first pipe piece block 21 together. The second connecting member 32 is also a sheet structure, a plurality of second connecting members 32 connected in a stacked manner are also embedded in the second segment block 22, and the plurality of second connecting members 32 are aligned, fixedly connected and embedded in the second segment block 22.
As another preferred embodiment of the present invention, as shown in fig. 5, the first connecting member 31 is disposed perpendicular to the attaching surface 211 of the first tube piece 21, and the second connecting member 32 is disposed perpendicular to the attaching surface 221 of the second tube piece 22; or the first connecting piece 31 is obliquely embedded in the first pipe piece block 21, and the second connecting piece 32 is obliquely embedded in the second pipe piece block 22. When the first connecting piece 31 and the second connecting piece 32 are obliquely arranged, the second connecting piece 32 is clamped in the first connecting piece 31 to form a wedge effect, so that the connection is firmer. The first connecting member 31 and the second connecting member 32 are mounted to the abutting surfaces of the tube piece blocks at an oblique angle of 1: 20.
As shown in fig. 2, the inter-block connecting joint 30 of the present invention is installed on the joint surfaces 211 of the pipe blocks, a first connecting member 31 is embedded on one joint surface 211 of each pipe block, a second connecting member 32 is embedded on the other joint surface 211, as shown in fig. 5 and 7, an installation groove corresponding to the opening 311 and the accommodating groove 312 is provided on the joint surface 211 of the embedded first connecting member 31, the installation groove is communicated with the opening 311 and the accommodating groove 312, the size of the opening of the installation groove is adapted to the connecting head 322 of the second connecting member 32, when two adjacent pipe blocks are installed, the first pipe block 21 and the second pipe block 22 are installed as an example, the joint surface 221 of the second connecting member 32 embedded on the second pipe block 22 faces the joint surface 211 of the first pipe block 32 embedded on the first pipe block, the connecting head 321 of the second connecting member 32 is placed in the installation groove on the joint surface 211 of the first pipe block 21, then, the second segment 22 is pushed toward the receiving slot 312, so that the connecting head 322 of the second connecting member 32 is slidably disposed in the receiving slot 312, and the structure of the mounting slot is omitted in the first segment shown in fig. 7. In actual construction, the joint 322 of the second connecting member 32 is only required to be placed in the mounting groove of the first pipe segment 21, and then the shield jack is used to push the second pipe segment 22 to complete assembly. For the convenience of installation, locate the mounting groove of seting up on the installation face of pipe piece and be close to the one side setting of not installing the whole ring section of jurisdiction for when the installation pipe piece, only need to promote towards the direction of the whole ring section of jurisdiction that has installed and treat the section of jurisdiction piece of installation and can accomplish the installation, the size of this mounting groove only need satisfy can place connector 322 can.
As shown in fig. 2 and 7, a groove is formed at one end of the attaching surface 211 of the first duct piece block 21 close to the inner side surface 212, a groove is also formed at one side close to the outer side surface 213, and sealant is filled in the two grooves to form an inner sealing structure and an outer sealing structure of the duct piece, which are used for sealing a longitudinal seam between duct piece blocks.
The inter-block connecting joint realizes the quick connection between the duct piece blocks, adopts a sheet structure, has the thickness of 9mm, adopts different numbers of first connecting pieces and second connecting pieces to form a whole by stacking and welding according to the size of the duct piece and the structural stress requirement, thereby meeting the stress requirement of the duct pieces with different diameters and industrial and mining, namely the number of the inter-block connecting joints 30 is determined by calculating according to the actual pressure of a shield tunnel, the number of the first connecting pieces and the second connecting pieces which are stacked and connected in the inter-block connecting joint 30 can be determined according to the actual pressure, and the number of the inter-block connecting joints 30 arranged on each duct piece block can be determined according to the actual pressure.
The beneficial effects of the inter-block connecting joint are as follows:
the structure is simplified while the function of One-step (One-Pass) simple assembly is realized, so that the first connecting piece and the second connecting piece not only keep the joint performance and the durability of the connecting structure, but also solve the problem of high cost of the conventional joint through the simplification of the structure and the simplification of the manufacturing method.
After the duct piece blocks are positioned, the shield can be assembled only by pushing the shield jacks.
The pipe piece blocks cannot be damaged, and the inner surfaces of the pipe pieces formed by the pipe piece blocks and the pipe pieces formed by butt joint are smooth.
Through the range upon range of amalgamation of interblock attach fitting and the mode that adopts the multistage installation, applicable in the section of jurisdiction of small-bore, medium-bore and heavy-calibre, and only need use a metal punching shear mould, practice thrift the cost.
The present invention also provides a method of connecting duct pieces using an inter-duct piece connecting joint using a stacked configuration, the method of connecting duct pieces including the steps of:
as shown in fig. 4, an inter-block connection joint 30 is provided, and the inter-block connection joint 30 includes a first connection member 31 and a second connection member 32 adapted to the first connection member 31;
as shown in fig. 5, the first connecting member 31 is embedded in the first tube piece 21 of the two adjacent tube pieces;
embedding the second connecting piece 32 in the second segment 22 of the two adjacent segments;
as shown in fig. 6, the first tube piece 21 and the second tube piece 22 are slid relative to each other to allow the second connecting member 32 to be clamped in the first connecting member 31, so that the first tube piece 21 and the second tube piece 22 are connected in a butt joint manner.
As shown in fig. 5, 7 and 8, as a preferred embodiment of the present invention, the first connecting member 31 has an opening 311 left on the attaching surface 211 of the first tube sheet 21, and the first connecting member 31 has a receiving slot 312 communicating with the opening 311; the second connecting piece 32 is provided with a connecting rod 321 which protrudes outwards and is matched with the opening 311 on the binding surface 221 of the second tube sheet block 22, and the end of the connecting rod 321 is provided with a connecting head 322 matched with the accommodating groove 312; the relative sliding of the first tube piece 21 and the second tube piece 22 includes: the connecting rod 321 and the connecting head 322 are disposed at one side of the opening 311 and the accommodating groove 312, and the first tube piece 21 and the second tube piece 22 slide relatively to each other, so that the connecting rod 321 and the connecting head 322 are slidably disposed in the opening 311 and the accommodating groove 312, and are clamped in the accommodating groove 312 through the connecting head 322, thereby realizing the butt joint of the first tube piece 21 and the second tube piece 22. The size of the opening 311 is smaller than that of the accommodating groove 312, and the size of the connector 222 is larger than that of the opening 311, so that the connector 322 can be limited and fixed by the opening 311 in the circumferential direction after being clamped in the accommodating groove 312. When the first tube piece block 21 and the second tube piece block 22 slide relatively, the first tube piece block is pushed, if the first tube piece block 21 and the second tube piece block 22 are not fixed, the second connecting piece 32 of the second tube piece block 22 can be placed on one side of the first connecting piece 31, and then the first tube piece block 21 or the second tube piece block 22 is pushed, so that the second connecting piece 32 is clamped in the first connecting piece 31; if one of the first and second segment blocks 21 and 22 is already fixed, the other non-fixed segment block may be pushed so that the second connector 32 is caught in the first connector 31.
As shown in fig. 5, as another preferred embodiment of the present invention, a cross bar 313 is provided at the bottom of the receiving groove 312 of the first connecting member 31, and a base 314 is vertically connected to an end of the cross bar 313; the connecting rod 321 of the second connecting piece 32 is partially anchored in the second tube sheet block 22, and the end of the connecting rod 321 anchored in the second tube sheet block 22 is vertically connected with a support 323; when the first connecting piece 31 is buried in the first pipe piece block 21, the base 314 is fixedly connected with the steel bars in the first pipe piece block 21; when the second connecting member 32 is embedded in the second segment 22, the support 323 is fixedly connected to the reinforcing bars in the second segment 22. Through setting up base 314 and support 323, strengthen the anchor strength of first connecting piece 31 and second connecting piece 32 to improve the structural strength that first connecting piece 31 and second connecting piece 32 bury in the segment piece.
As shown in fig. 7 and 8, as another preferred embodiment of the present invention, the first connecting member 31 is a sheet-shaped structure, and a plurality of first connecting members 31 connected in a stacked manner are embedded in the first tube sheet block 21; the second connector 32 is a sheet-like structure, and a plurality of second connectors 32 connected in a stacked manner are also embedded in the second tube sheet block 22. The plurality of first connecting members 31 are aligned and fixedly connected, and are embedded together in the first tube sheet block 21. The second connecting members 32 are aligned and fixedly connected to each other and embedded in the second block 22. Every thickness of first connecting piece 31 and second connecting piece 32 is 9mm, according to section of jurisdiction size and structural stress requirement, adopts the range upon range of welding of the first connecting piece of different numbers of pieces and second connecting piece to form a whole to satisfy the section of jurisdiction stress requirement of different diameters and industrial and mining.
As still another preferred embodiment of the present invention, when the first connecting member 31 and the second connecting member 32 are buried: arranging the first connecting piece 31 perpendicular to the attaching surface 211 of the first tube piece 21, and arranging the second connecting piece 32 perpendicular to the attaching surface 221 of the second tube piece 22; or the first connecting member 31 is embedded obliquely in the first pipe piece 21, and the second connecting member 32 is embedded obliquely in the second pipe piece 22. When the first connecting piece 31 and the second connecting piece 32 are obliquely arranged, the second connecting piece 32 is clamped in the first connecting piece 31 to form a wedge effect, so that the connection is firmer. The first connecting member 31 and the second connecting member 32 are mounted to the abutting surfaces of the tube piece blocks at an oblique angle of 1: 20.
As shown in fig. 2, the inter-block connecting joint 30 of the present invention is installed on the joint surfaces 211 of the pipe blocks, a first connecting member 31 is embedded on one joint surface 211 of each pipe block, a second connecting member 32 is embedded on the other joint surface 211, as shown in fig. 5 and 7, an installation groove corresponding to the opening 311 and the accommodating groove 312 is provided on the joint surface 211 of the embedded first connecting member 31, the installation groove is communicated with the opening 311 and the accommodating groove 312, the size of the opening of the installation groove is adapted to the connecting head 322 of the second connecting member 32, when two adjacent pipe blocks are installed, the first pipe block 21 and the second pipe block 22 are installed as an example, the joint surface 221 of the second connecting member 32 embedded on the second pipe block 22 faces the joint surface 211 of the first pipe block 32 embedded on the first pipe block, the connecting head 321 of the second connecting member 32 is placed in the installation groove on the joint surface 211 of the first pipe block 21, then, the second segment 22 is pushed toward the receiving slot 312, so that the connecting head 322 of the second connecting member 32 is slidably disposed in the receiving slot 312, and the structure of the mounting slot is omitted in the first segment shown in fig. 7. In actual construction, the joint 322 of the second connecting member 32 is only required to be placed in the mounting groove of the first pipe segment 21, and then the shield jack is used to push the second pipe segment 22 to complete assembly. For the convenience of installation, locate the mounting groove of seting up on the installation face of pipe piece and be close to the one side setting of not installing the whole ring section of jurisdiction for when the installation pipe piece, only need to promote towards the direction of the whole ring section of jurisdiction that has installed and treat the section of jurisdiction piece of installation and can accomplish the installation, the size of this mounting groove only need satisfy can place connector 322 can.
The present invention will be described with reference to the segment-to-segment joint and the joining method using the same.
As shown in fig. 9, the segment-to-segment inter-ring connection joint 40 of the present invention includes a first connector 41 and a second connector 42, as shown in fig. 11, the first connector 41 is embedded in the first ring segment 11 of two adjacent ring segments, and an elastic locking mechanism 411 is disposed on the first connector 41; the second plug connector 42 is matched with the first plug connector 41, the second plug connector 42 is arranged on the second ring segment 12 in the two adjacent ring segments, and the second plug connector 42 is inserted into the first plug connector 41 and is limited and clamped through the locking mechanism 411 to realize splicing connection of the first ring segment 11 and the second ring segment 12. Locking mechanism 411 is the elastic component, and at the in-process that second plug connector 42 inserted to first plug connector 41, this locking mechanism 411 makes this second plug connector 42 can be smooth insert to first plug connector 41 in owing to elastic deformation, and then this locking mechanism 411 resilience back has played the stopping function, thereby has prevented that second plug connector 42 from retreating and has locked spacing second plug connector 42, has realized first ring section of jurisdiction 11 and second ring section of jurisdiction 12 splice connection.
The inter-ring connecting joint adopts the insertion connection of the first plug connector and the second plug connector, and only needs to push the second ring pipe piece towards the first ring pipe piece and attach the second ring pipe piece to the first ring pipe piece during installation, so that the second plug connector is clamped with the first plug connector. This first plug connector and second plug connector have not only played the effect of connecting the first ring section of jurisdiction of fastening and the second ring section of jurisdiction, have still played the effect of location, during the construction with the first plug connector and the relative mounted position that can fix a position the section of jurisdiction of second plug connector, then with the second plug connector insert to first plug connector in can, realized that One step (One-Pass) simply assembles, installation labour saving and time saving can accelerate the speed of assembling of section of jurisdiction, save engineering time. When the inter-ring connecting joints and the inter-block connecting joints are used together, namely, the inter-block connecting joints are arranged on the circumferential side surfaces of the duct piece blocks and are used for connecting two adjacent duct piece blocks, the inter-ring connecting joints are arranged on the longitudinal side surfaces of the duct piece blocks and are used for connecting two adjacent ring duct pieces, each ring duct piece is formed by butting and connecting a plurality of duct piece blocks in practical construction, when the duct piece blocks are spliced, the duct piece blocks are butted and connected with the adjacent duct piece blocks through the inter-block connecting joints arranged on the duct piece blocks, the duct piece blocks are spliced and connected with the duct piece blocks corresponding to the previous ring duct piece through the environment connecting joints arranged on the duct piece blocks, the inter-block connecting joints and the inter-ring connecting joints are pushed and installed towards the previous ring duct piece direction, the connection of the inter-block connecting joints and the inter-ring connecting joints can be completed only by pushing the duct piece blocks to be installed towards the previous ring duct piece direction once, and the One-step (One, the installation labour saving and time saving can accelerate the speed of assembling of section of jurisdiction, saves engineering time.
As shown in fig. 9 and 10, a plugging hole 412 is formed inside the first connector 41, as shown in fig. 11, the plugging hole 412 is embedded in the first ring segment 11 and the opening 4121 is disposed on the splicing surface 111 of the first ring segment, the locking mechanism 411 includes at least one spring piece 413 disposed on the first connector 41, the spring piece 413 is inclined toward the inside of the first connector 41, one end of the spring piece 413 relatively close to the opening 4121 is fixedly connected to the first connector 41, and one end of the spring piece 413 relatively far away from the opening 4121 extends into the inside of the first connector 41. The second plug connector 42 is mounted on the splicing surface 121 of the second ring segment 12, and a raised head 421 is arranged at the end of the second plug connector 42 away from the splicing surface 121 of the second ring segment 12. When the second plug connector 42 is inserted into the first plug connector 41, the protruding head 421 is inserted into the insertion hole 412, in the process that the protruding head 421 is inserted into the first plug connector 41, in combination with fig. 12, the protruding head 421 presses the spring 413 when passing through the spring 413, so that the spring 413 is extruded by the protruding head 421 and extends out of the first plug connector 41, the protruding head 421 can smoothly pass through the spring 413, in combination with fig. 13, the protruding head 421 resets through the spring 413 after passing through the spring 413 to limit the clamping protruding head 421, and the first ring segment 11 and the second ring segment 12 are spliced and connected.
The nose 421 is in the shape of a truncated cone with a small front end and a large rear end, the front end is the end relatively far away from the splicing surface 121 of the second ring segment 12, and the rear end is the end relatively close to the splicing surface 121 of the second ring segment 12. The diameter of the rear end of the projection 421 is larger than the diameter of the middle section body of the second plug-in connector 42, so that a circle of truncated cone extending outwards from the periphery of the middle section body of the second plug-in connector 42 is formed on the bottom surface of the projection 421, and when the projection 421 is inserted into the first plug-in connector 41, the end of the spring 413 abuts against the truncated cone to realize the limiting and clamping projection 421. The rear end of the nose 421 is sized to fit the size of the mating bore 412.
In a preferred embodiment of the present invention, the spring pieces 413 are at least a pair and are oppositely disposed on the outer periphery of the first connector 41. The projection 421 of the inserted second plug 42 is caught by the oppositely arranged spring 413. The size of the intermediate section body of the second connector 42 is adapted to the size of a space formed between the end sides of the pair of reeds 413 extending into the first connector 41.
As another preferred embodiment of the present invention, the end of the first plug 41 away from the first ring segment 11 is a flared structure expanding outward, the flared structure is a circular truncated cone structure with a large front end and a small rear end, the front end is an end relatively away from the splicing surface 111 of the first ring segment 11, and the rear end is an end relatively close to the splicing surface 111 of the first ring segment 11, and the end of the flared structure improves the pull-out resistance of the first plug 41.
As another preferred embodiment of the present invention, as shown in fig. 9 and 11, a threaded connection section 422 is disposed at an end of the second connector 42 close to the splicing surface 121 of the second ring segment 12, a connection sleeve 122 adapted to the threaded connection section 422 is embedded in the second ring segment 12, the connection sleeve 122 is used for connecting the second connector 42, and the threaded connection section 422 of the second connector 42 is screwed onto the connection sleeve 122, so that the second connector 42 is mounted on the second ring segment 12.
As shown in fig. 9, the second plug-in connector 42 is a columnar structure, a protrusion 421 is formed at the front end of the second plug-in connector 42, a threaded connection section 422 is formed at the rear end of the second plug-in connector, the middle section body is a stepped columnar structure, the diameter of the portion of the middle section body close to the protrusion 421 is smaller than that of the portion close to the threaded connection section 422, the length of the portion of the middle section body with the smaller diameter is adapted to the length of the reed 413, and the portion of the middle section body with the larger diameter is adapted to the rear end of the protrusion 421.
As shown in fig. 14 and fig. 15, the first connectors 41 are spaced on the splicing surface 111 of the first ring tube piece 11, the second connectors 42 are spaced on the splicing surface 121 of the second ring tube piece 12, grooves are disposed on the splicing surfaces 111 and 121 of the first ring tube piece 11 and the second ring tube piece 12 and the ends of the splicing surfaces close to the inner side and the outer side, as shown in fig. 3, sealant is filled in the grooves close to the inner side and the outer side on the splicing surfaces, an inner sealing structure and an outer sealing structure of the tube piece are formed, and are used for sealing circumferential seams between rings of the tube piece, when the first connectors 41 and the second connectors 42 are disposed, the inner sealing structure and the outer sealing structure are not damaged, the sealing performance of the sealing structure is not affected by the inter-ring connection joints, and a better sealing effect is achieved.
As shown in fig. 3, the inter-ring joint 40 of the present invention is installed on the joint surfaces 111 of the block pieces, and the first connector 41 is embedded on one joint surface 111 of each block piece, and the second connector 42 is embedded on the other joint surface 111. When assembling the two-ring segment, as shown in fig. 11 to 13, the second connectors 42 on the segment block with the assembled ring segment are aligned with the first connectors 41 on the segment block of the previous ring (assembled), and then the segment block is pushed toward the segment block of the previous ring, so that the second connectors 42 are inserted into the first connectors 41, and the installation is completed. The simple and convenient installation mode can be realized by only using the shield jack to push the pipe piece block to be installed during construction. The inter-ring connecting joint adopts the backstop spring technology, ensures that the joint cannot be pulled out after being inserted, and improves the backstop capability.
The method of the present invention for joining segments using segment-to-segment annular joints is described below. The method for connecting the duct pieces comprises the following steps:
as shown in fig. 9, an inter-ring connection joint 40 is provided, the inter-ring connection joint 40 includes a first connector 41 and a second connector 42 adapted to the first connector 41;
as shown in fig. 11, the first connector 41 is embedded in the first ring segment 11 of two adjacent ring segments, and the first connector 41 is provided with an elastic locking mechanism 411;
installing the second plug connector 42 in the second ring segment 12 of the two adjacent ring segments; and
the second plug connector 42 is inserted into the first plug connector 41 and is limited and clamped through the locking mechanism 411, so that the first ring segment 11 and the second ring segment 12 are spliced and connected. Locking mechanism 411 is the elastic component, and at the in-process that second plug connector 42 inserted to first plug connector 41, this locking mechanism 411 makes this second plug connector 42 can be smooth insert to first plug connector 41 in owing to elastic deformation, and then this locking mechanism 411 resilience back has played the stopping function, thereby has prevented that second plug connector 42 from retreating and has locked spacing second plug connector 42, has realized first ring section of jurisdiction 11 and second ring section of jurisdiction 12 splice connection.
The inter-ring connecting joint adopts the insertion connection of the first plug connector and the second plug connector, and only needs to push the second ring pipe piece towards the first ring pipe piece and attach the second ring pipe piece to the first ring pipe piece during installation, so that the second plug connector is clamped with the first plug connector. This first plug connector and second plug connector have not only played the effect of connecting the first ring section of jurisdiction of fastening and the second ring section of jurisdiction, have still played the effect of location, during the construction with the first plug connector and the relative mounted position that can fix a position the section of jurisdiction of second plug connector, then with the second plug connector insert to first plug connector in can, realized that One step (One-Pass) simply assembles, installation labour saving and time saving can accelerate the speed of assembling of section of jurisdiction, save engineering time.
As a preferred embodiment of the present invention, as shown in fig. 9 and 10, a plugging hole 412 is formed inside the first connector 41, and as shown in fig. 11, the plugging hole 412 is embedded in the first ring segment 11 and the opening 4121 is disposed on the splicing surface 111 of the first ring segment 11, the locking mechanism 411 includes at least one spring piece 413 disposed on the first connector 41, the spring piece 413 is disposed obliquely toward the inside of the first connector 41, one end of the spring piece 413 relatively close to the opening 4121 is fixedly connected to the first connector 41, and one end of the spring piece 413 relatively far from the opening 4121 extends into the inside of the first connector 41. The second plug connector 42 is arranged on the splicing surface 121 of the second ring segment 12, and a raised head 421 is arranged at the end part of the second plug connector 42, which is far away from the splicing surface 121 of the second ring segment 12; when the second plug connector 42 is inserted into the first plug connector 41, the protruding head 421 is inserted into the insertion hole 412 and presses the spring piece 413 to extend out of the first ring segment 11, and after the protruding head 421 penetrates through the spring piece 413, the spring piece 413 resets to limit the clamping protruding head 421, so that the first ring segment 11 and the second ring segment 12 are spliced and connected. The nose 421 is in the shape of a truncated cone with a small front end and a large rear end, the front end is the end relatively far away from the splicing surface 121 of the second ring segment 12, and the rear end is the end relatively close to the splicing surface 121 of the second ring segment 12. The diameter of the rear end of the projection 421 is larger than the diameter of the middle section body of the second plug-in connector 42, so that a circle of truncated cone extending outwards from the periphery of the middle section body of the second plug-in connector 42 is formed on the bottom surface of the projection 421, and when the projection 421 is inserted into the first plug-in connector 41, the end of the spring 413 abuts against the truncated cone to realize the limiting and clamping projection 421. The rear end of the nose 421 is sized to fit the size of the mating bore 412.
As another preferred embodiment of the present invention, as shown in fig. 10 and 11, the spring pieces 413 are at least one pair and are provided to face the outer periphery of the first connector 41. The projection 421 of the inserted second plug 42 is caught by the oppositely arranged spring 413. The size of the intermediate section body of the second connector 42 is adapted to the size of a space formed between the end sides of the pair of reeds 413 extending into the first connector 41.
In another preferred embodiment of the present invention, the end of the first connector 41 away from the first ring segment 11 is flared outwardly. The horn-shaped structure is a round platform structure with a large front end and a small rear end, the front end is the end of the splicing surface 111 relatively far away from the first ring duct piece 11, the rear end is the end of the splicing surface 111 relatively close to the first ring duct piece 11, and the end part of the horn-shaped structure improves the anti-pulling capacity of the first plug connector 41.
As another preferred embodiment of the present invention, referring to fig. 11, the end of the second connector 42 close to the splicing surface 121 of the second ring segment 12 is provided with a threaded connection section 422; installing the second clip 42 in the second ring segment 12 includes: a connecting sleeve 122 matched with the threaded connecting section 422 is embedded in the second ring segment 12; the threaded connection section 422 is screwed to the connection sleeve 122.
As shown in fig. 9, the second plug-in connector 42 is a columnar structure, a protrusion 421 is formed at the front end of the second plug-in connector 42, a threaded connection section 422 is formed at the rear end of the second plug-in connector, the middle section body is a stepped columnar structure, the diameter of the portion of the middle section body close to the protrusion 421 is smaller than that of the portion close to the threaded connection section 422, the length of the portion of the middle section body with the smaller diameter is adapted to the length of the reed 413, and the portion of the middle section body with the larger diameter is adapted to the rear end of the protrusion 421. As shown in fig. 14 and fig. 15, the first connectors 41 are spaced on the splicing surface 111 of the first ring tube piece 11, the second connectors 42 are spaced on the splicing surface 121 of the second ring tube piece 12, grooves are disposed on the splicing surfaces 111 and 121 of the first ring tube piece 11 and the second ring tube piece 12 and the ends of the splicing surfaces close to the inner side and the outer side, as shown in fig. 3, sealant is filled in the grooves close to the inner side and the outer side on the splicing surfaces, an inner sealing structure and an outer sealing structure of the tube piece are formed, and are used for sealing circumferential seams between rings of the tube piece, when the first connectors 41 and the second connectors 42 are disposed, the inner sealing structure and the outer sealing structure are not damaged, the sealing performance of the sealing structure is not affected by the inter-ring connection joints, and a better sealing effect is achieved.
Table 1 below gives a comparison of the performance of a conventional bolted segment joint and a joint using the block and ring joint of the present invention.
TABLE 1 comparison of the Performance of the conventional bolted segment connection with the segment-to-segment and ring-to-ring connection according to the invention
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (6)
1. An inter-segment block joint using a stacked configuration, comprising:
the first connecting piece is embedded in a first segment of two adjacent segments; and
the second connecting piece is embedded in a second pipe piece block of the two adjacent pipe piece blocks and is matched with the first connecting piece, and the first pipe piece block and the second pipe piece block are relatively slid and clamped in the first connecting piece, so that the first pipe piece block and the second pipe piece block are in butt joint connection; an opening is reserved on the binding surface of the first pipe piece block of the first connecting piece, and an accommodating groove communicated with the opening is formed in the first connecting piece;
a connecting rod which protrudes outwards and is matched with the opening is formed on the binding surface of the second pipe piece block by the second connecting piece, and a connector matched with the accommodating groove is formed at the end part of the connecting rod;
when the first pipe piece block and the second pipe piece block relatively slide, the connecting rod is arranged in the opening, and the connecting head is clamped in the accommodating groove so that the first pipe piece block and the second pipe piece block are in butt joint connection;
the first connecting piece is of a sheet structure, and a plurality of first connecting pieces which are connected in a stacked mode are embedded in the first duct piece block;
the second connecting piece is of a sheet structure, and a plurality of second connecting pieces which are connected in a stacked mode are also embedded in the second duct piece block;
lie in on the section of jurisdiction piece and be provided with the inter-annular attach fitting on fore-and-aft side for connect two adjacent ring sections of jurisdiction, the inter-annular attach fitting includes:
the first plug connector is embedded in a first ring pipe piece in two adjacent ring pipe pieces, and an elastic locking mechanism is arranged on the first plug connector; and
the second plug connector is arranged on a second ring pipe piece in two adjacent ring pipe pieces and is matched with the first plug connector, and the second plug connector is inserted into the first plug connector and is limited and clamped through the locking mechanism so as to realize splicing connection of the first ring pipe piece and the second ring pipe piece; the locking mechanism comprises at least one reed arranged on the first plug connector, and the reed is obliquely arranged towards the inside of the first plug connector;
the second plug connector is arranged on the splicing surface of the second ring segment, and a raised head is arranged at the end part, far away from the splicing surface of the second ring segment, of the second plug connector; the diameter of the rear end of the raised head is larger than that of the middle section body of the second plug connector, so that a circle of circular truncated cone extending outwards from the periphery of the middle section body of the second plug connector is formed on the rear end face of the raised head;
when the second plug connector is inserted into the first plug connector, the raised head is inserted into the plug hole and extrudes the reed to extend out of the first ring segment, and the raised head is reset through the reed after penetrating through the reed to limit and clamp the raised head, so that the first ring segment and the second ring segment are spliced;
when the raised head is inserted into the first plug connector, the end part of the reed abuts against the circular truncated cone to realize the limiting and clamping of the raised head;
grooves are formed in the binding surface of the first tube sheet block, close to the inner side surface and the outer side surface, and sealant is filled in the grooves so as to form an inner sealing structure and an outer sealing structure;
the first connecting piece and the second connecting piece are arranged between the inner sealing structure and the outer sealing structure.
2. The segment-to-segment joint of claim 1 wherein the first segment has a cross bar at the bottom of the groove, the cross bar having a base vertically attached to the end;
the connecting rod part of the second connecting piece is anchored in the second segment block, and the end part of the connecting rod anchored in the second segment block is vertically connected with a support.
3. The segment-to-segment joint of claim 1 wherein said first connector is disposed perpendicular to said first segment abutment surface and said second connector is disposed perpendicular to said second segment abutment surface; or
The first connecting piece is obliquely embedded in the first segment block, and the second connecting piece is obliquely embedded in the second segment block.
4. A method of joining segments using an inter-segment-connecting joint of a stacked configuration, comprising the steps of:
providing an inter-block connecting joint, wherein the inter-block connecting joint comprises a first connecting piece and a second connecting piece matched with the first connecting piece;
embedding the first connecting piece in a first segment block of two adjacent segment blocks;
embedding the second connecting piece in a second segment of two adjacent segments; and
the first pipe piece block and the second pipe piece block are relatively slid so that the second connecting piece is clamped in the first connecting piece, and therefore the first pipe piece block and the second pipe piece block are in butt joint; an opening is reserved on the binding surface of the first pipe piece block of the first connecting piece, and an accommodating groove communicated with the opening is formed in the first connecting piece; a connecting rod which protrudes outwards and is matched with the opening is formed on the binding surface of the second pipe piece block by the second connecting piece, and a connector matched with the accommodating groove is formed at the end part of the connecting rod;
sliding the first segment piece and the second segment piece relative to each other comprises:
placing the connecting rod and the connector at one side of the opening and the accommodating groove, and relatively sliding the first pipe piece block and the second pipe piece block to enable the connecting rod and the connector to be slidably arranged in the opening and the accommodating groove, and clamping the connector in the accommodating groove to realize butt joint of the first pipe piece block and the second pipe piece block;
the first connecting piece is of a sheet structure, and a plurality of first connecting pieces which are connected in a stacked mode are embedded in the first duct piece block;
the second connecting piece is of a sheet structure, and a plurality of second connecting pieces which are connected in a stacked mode are also embedded in the second duct piece block;
providing an inter-ring connecting joint, wherein the inter-ring connecting joint comprises a first plug connector and a second plug connector matched with the first plug connector;
embedding the first plug connector in a first ring pipe piece of two adjacent ring pipe pieces, wherein the first plug connector is provided with an elastic locking mechanism;
arranging the second plug connector in a second ring pipe piece of two adjacent ring pipe pieces; the first ring segment and the second ring segment are formed by butt joint of a plurality of first segment blocks and second segment blocks;
inserting the second plug connector into the first plug connector and limiting and clamping the second plug connector through the locking mechanism so as to realize splicing connection of the first ring segment and the second ring segment; the locking mechanism comprises at least one reed arranged on the first plug connector, and the reed is obliquely arranged towards the inside of the first plug connector; the second plug connector is arranged on the splicing surface of the second ring segment, and a raised head is arranged at the end part, far away from the splicing surface of the second ring segment, of the second plug connector; the diameter of the rear end of the raised head is larger than that of the middle section body of the second plug connector, so that a circle of circular truncated cone extending outwards from the periphery of the middle section body of the second plug connector is formed on the rear end face of the raised head;
when the second plug connector is inserted into the first plug connector, the raised head is inserted into the plug hole and extrudes the reed to extend out of the first ring segment, and after the raised head penetrates through the reed, the reed resets to limit and clamp the raised head so as to realize splicing connection of the first ring segment and the second ring segment; when the raised head is inserted into the first plug connector, the end part of the reed abuts against the circular truncated cone to realize the limiting and clamping of the raised head;
grooves are formed in the binding surface of the first tube sheet block, close to the inner side surface and the outer side surface, and sealant is filled in the grooves so as to form an inner sealing structure and an outer sealing structure;
the first connecting piece and the second connecting piece are arranged between the inner sealing structure and the outer sealing structure.
5. The method of joining tube segments using an inter-segment connection joint of stacked construction as claimed in claim 4 wherein the bottom of the receiving slot of said first connector is provided with a cross bar having a base vertically attached to an end of said cross bar; the connecting rod part of the second connecting piece is anchored in the second segment block, and the end part of the connecting rod anchored in the second segment block is vertically connected with a support;
when the first connecting piece is embedded in the first segment block, the base is fixedly connected with the steel bars in the first segment block;
and when the second connecting piece is buried in the second segment block, the support is fixedly connected with the steel bars in the second segment block.
6. The method of joining tube segments using an inter-segment connection joint of a stacked configuration as defined in claim 4, wherein when said first connection member and said second connection member are embedded:
arranging the first connecting piece perpendicular to the binding surface of the first tube piece block, and arranging the second connecting piece perpendicular to the binding surface of the second tube piece block; or
And embedding the first connecting piece in the first segment block in an inclined manner, and embedding the second connecting piece in the second segment block in an inclined manner.
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| CN201710145121.9A CN106801610B (en) | 2017-03-13 | 2017-03-13 | Segment-to-segment connection joint using stacked structure and method of connection using the same |
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| CN108915722B (en) * | 2018-04-26 | 2020-08-11 | 中铁隧道集团二处有限公司 | Composite duct piece capable of monitoring operation posture |
| CN110541717A (en) * | 2019-09-26 | 2019-12-06 | 江苏大成轨道科技有限公司 | Annular push-insert type connecting and fastening assembly for shield tunnel segment and application thereof |
| CN111042830A (en) * | 2019-12-02 | 2020-04-21 | 广州铁路职业技术学院（广州铁路机械学校） | Push-in self-locking type segment connecting piece and segment connecting structure |
| CN111794770A (en) * | 2020-07-22 | 2020-10-20 | 中铁第一勘察设计院集团有限公司 | Shield tunnel segment bolt hole reinforcing structure and construction method |
| CN112730083B (en) * | 2020-12-28 | 2024-05-28 | 西南石油大学 | Simulation system and experimental method for regulating and controlling segment staggering by using rebate |
| CN112983472A (en) * | 2021-03-10 | 2021-06-18 | 上海市隧道工程轨道交通设计研究院 | Duct piece connecting method |
| CN114198118A (en) * | 2021-12-25 | 2022-03-18 | 中铁工程装备集团有限公司 | Underground engineering node processing structure and construction method thereof |
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| CN106801610A (en) | 2017-06-06 |
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Effective date of registration: 20221221 Address after: 200032 5th Floor, No. 1099 Wanping South Road, Xuhui District, Shanghai Patentee after: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Patentee after: SHANGHAI TUNNEL ENGINEERING & RAIL TRANSIT DESIGN AND Research Institute Patentee after: Shanghai urban construction tunnel equipment technology development Co.,Ltd. Address before: No. 1099, No. 5, Wan Ping Nan Road, Xuhui District, Shanghai Patentee before: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Patentee before: SHANGHAI TUNNEL ENGINEERING & RAIL TRANSIT DESIGN AND Research Institute |