CN116104528A - Shield tunnel segment connecting structure and construction process thereof - Google Patents
Shield tunnel segment connecting structure and construction process thereof Download PDFInfo
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- CN116104528A CN116104528A CN202310353294.5A CN202310353294A CN116104528A CN 116104528 A CN116104528 A CN 116104528A CN 202310353294 A CN202310353294 A CN 202310353294A CN 116104528 A CN116104528 A CN 116104528A
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- 238000007789 sealing Methods 0.000 claims description 58
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- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000003032 molecular docking Methods 0.000 description 14
- 239000010410 layer Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
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- 239000010959 steel Substances 0.000 description 6
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses a shield tunnel segment connecting structure and a construction process thereof. The shield tunnel duct piece connecting structure comprises a first duct piece and a second duct piece, wherein a first base plate is arranged on the first duct piece, a joint fixing butt joint column is arranged on the first base plate, a second base plate is arranged on the second duct piece, a joint locking sleeve is fixedly connected on the second base plate, and the joint fixing butt joint column is inserted into the joint locking sleeve when the first duct piece is in butt joint connection with the second duct piece; and the second base plate is also provided with a locking mechanism, so that the first duct piece and the second duct piece can be locked and fixed. This shield tunnel section of jurisdiction connection structure, in the connection process, easy operation is convenient, labour saving and time saving need not with the help of external tool, and utilizes the fixed butt joint post of joint to replace the bolt to bear sectional shearing force and axial pulling force, and the fixed butt joint post of joint compares bolt intensity high, non-deformable guarantees that concrete shield tunnel section of jurisdiction joint is connected effectually.
Description
Technical Field
The invention relates to the technical field of shield tunnel segment construction, in particular to a shield tunnel segment connecting structure and a construction process thereof.
Background
The shield tunnel structure is an assembled structure, shield segments are connected into a ring through connecting pieces such as bolts, meanwhile, the rings are connected through the connecting pieces such as bolts, so that a tunnel is formed, the shield tunnel is not only circular, but also rectangular according to different construction environments.
The traditional concrete shield tunnel duct pieces are generally butted by adopting bolts, when two groups of transverse shield tunnel duct pieces are connected, the bolts are required to bear shearing force of a section and axial pulling force after connection due to thicker shield tunnel duct pieces, the application method is easy to deform in the shield tunnel duct pieces with larger bearing force to influence the connection strength, threads are also easy to damage, in addition, when the bolts are connected by relying on rotating tools such as a spanner, the electric tools are limited, the connection is inconvenient, the traditional concrete shield tunnel duct pieces are generally made of commodity concrete, when the stress is larger in a soft foundation soil layer, the stability is insufficient, sedimentation or displacement can occur, and a side sealing structure is generally bonded by adopting single-layer or double-layer rubber, so that the phenomenon of gap water leakage easily occurs after the service time is longer, and the later maintenance work is increased.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a shield tunnel segment connecting structure and a construction process thereof, which solve the problems that the butt joint is generally carried out by adopting bolts between traditional concrete shield tunnel segments, the connecting strength is easily affected by deformation in the shield tunnel segments with larger bearing capacity, threads are easily damaged, in addition, the bolts are connected by relying on rotary tools such as a spanner and the like, the electric tools are limited during the operation of a plurality of persons, the connection is inconvenient, the traditional concrete shield tunnel segments are generally made of commercial concrete, the stability is insufficient when the stress is larger in a soft foundation soil layer, sedimentation or displacement can occur, the side sealing structure is generally bonded by adopting single-layer or double-layer rubber, the gap water leakage phenomenon is easily generated after the service time is longer, and the later maintenance work is increased.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the invention provides a shield tunnel duct piece connecting structure which comprises a first duct piece and a second duct piece, wherein the first duct piece and the second duct piece are in same-ring butt joint, a first base plate is arranged on the first duct piece, and a joint fixing butt joint column is arranged on the first base plate; the second duct piece is provided with a second base plate, the second base plate is provided with a joint locking sleeve, and the joint fixing butt-joint column is inserted into the joint locking sleeve when the first duct piece is in butt-joint connection with the second duct piece; the second base plate is also provided with a locking mechanism, the locking mechanism comprises a locking fixing seat, a first spring is arranged in the locking fixing seat, at least one end of the first spring is fixedly connected with a locking slide block, the locking slide block is arranged in the locking fixing seat in a sliding manner, the locking slide block is provided with a locking rod, and a locking hole is formed in the joint fixing butt joint column; and when the joint fixing butt-joint column is inserted into the joint locking sleeve, the locking rod is inserted into the joint locking sleeve and movably clamped in the locking hole to realize the locking and fixing of the first duct piece and the second duct piece.
Preferably, a first mounting groove is preset on the first duct piece, the first base plate is embedded to be mounted in the first mounting groove, a first butt joint column through hole is preset on one side of the first duct piece in butt joint connection in the first mounting groove, and the first butt joint column through hole is used for sliding and penetrating the joint fixing butt joint column.
Preferably, two fixing blocks are arranged at two ends of the first base plate, a sliding guide rail is connected between the two fixing blocks, and the joint fixing butt-joint column is connected to the sliding guide rail in a sliding manner through a reinforcing sliding table; and a limiting support sleeve is fixed on one side, close to the end face of the first duct piece, of the first base plate, and the joint fixing butt-joint column is arranged in the limiting support sleeve in a sliding penetrating mode.
Preferably, a second mounting groove is preset on the second duct piece, the second base plate is embedded to be mounted in the second mounting groove, a second butt joint column through hole is preset on one side of the second duct piece in butt joint connection in the second mounting groove, and the second butt joint column through hole is used for sliding and penetrating the joint fixing butt joint column.
Preferably, a first handle is fixedly connected to the side wall of the locking sliding block, a first sliding groove for the first handle to penetrate is formed in the locking fixing seat, and the first handle can slide up and down in the first sliding groove.
Preferably, the locking fixing seat is provided with a safety mechanism, the safety mechanism comprises a sleeve seat, the sleeve seat is fixedly connected to the locking fixing seat, an inner cavity of the sleeve seat is slidably connected with a safety slide block, the safety slide block is fixedly connected with a safety insert rod, the safety slide block is provided with a safety groove corresponding to the safety insert rod in size, and the safety insert rod is inserted into the safety groove to realize locking safety of the locking mechanism.
Preferably, a second spring is fixedly connected between the inner cavity of the sleeve seat and the safety slide block, a second handle is fixedly connected to the side wall of the safety slide block, a second sliding groove corresponding to the second handle is formed in the side wall of the sleeve seat, and the second handle can slide back and forth in the second sliding groove.
Preferably, the first segment end face extends to form a positioning butt joint column, the second segment end face is correspondingly provided with a positioning butt joint hole, the positioning butt joint column is in plug-in connection with the positioning butt joint hole, and lateral support of the first segment and the second segment on the connecting surface is provided.
Preferably, the first duct piece end face is provided with a first sealing clamping block and a first sealing clamping groove, the second duct piece end face is provided with a second sealing clamping groove and a second sealing clamping block, a first sealing gasket is arranged in the first sealing clamping groove, and a second sealing gasket is arranged in the second sealing clamping groove; the end faces of the first duct piece and/or the second duct piece are provided with buffer sealing gaskets in the areas of the non-sealing clamping blocks and the sealing clamping grooves.
The invention further provides a construction process of the shield tunnel segment connecting structure, which comprises the following steps: s10: manufacturing a first duct piece and a second duct piece, and reserving a first mounting groove and a second mounting groove on the first duct piece and the second duct piece; s20: bolt holes are formed in the first mounting groove and the second mounting groove, and the first base plate and the second base plate are mounted in the first mounting groove and the second mounting groove through bolts; s30: the first duct piece and the second duct piece are butted at the construction site; s40: the first handle is pulled inwards, the locking slide block drives the locking rod to slide out of the connector locking sleeve, and the safety insert rod slides into the safety groove; s50: the connector fixing butt-joint column on the first duct piece is pushed out in a sliding mode, and the connector fixing butt-joint column is inserted into the connector locking sleeve on the second duct piece; s60: the second handle is pulled outwards, the safety slide block drives the safety insert rod to slide out of the safety groove, and the first spring pushes the locking slide block to drive the locking rod to be inserted into the joint locking sleeve and movably clamped in the locking hole on the joint fixing butt column; s70: and the second handle is loosened, and the second spring drives the safety slide block to drive the safety insert rod to clamp the locking slide block.
(III) beneficial effects
The invention discloses a shield tunnel segment connecting structure and a construction process thereof, which at least have the following beneficial effects:
1. this shield tunnel section of jurisdiction connection structure adopts first section of jurisdiction, the second section of jurisdiction, first base plate, connect fixed butt joint post, the second base plate, connect locking sleeve and locking mechanism's setting, adopt traditional bolted connection mode between the replacement concrete shield tunnel section of jurisdiction, this connected mode is at the connection in-process, easy operation is convenient, labour saving and time saving, need not with the help of external tool, and utilize the fixed butt joint post of joint to replace the bolt to bear sectional shearing force and axial pulling force, the fixed butt joint post of joint is difficult for breaking, whole hardness, the degree of stretching, the wearability is all far better than the bolt, consequently, the fixed butt joint post of joint compares bolt strength high, non-deformable guarantees that concrete shield tunnel section of jurisdiction joint connection effect is good.
2. This shield tunnel section of jurisdiction connection structure, the first base plate, connect fixed butt joint post, the second base plate, connect locking sleeve and locking mechanism etc. components all prefabricate in advance and assemble into an integral whole, only need reserve the mounting groove when prefabricating the section of jurisdiction, need not to carry out too big change to current section of jurisdiction structure, on-the-spot set up the bolt hole adopt the bolt installation can (the bolt hole also can set up in advance), easy operation, the construction is rapid.
3. This shield tunnel section of jurisdiction connection structure, shield tunnel section of jurisdiction adopt steel fiber concrete to make, intensity is high, and when the atress is great in soft basic soil texture layer, stability is high in ordinary concrete intensity, and stability is good, is difficult for taking place to subside or shift, adopts multiple joint to seal between first section of jurisdiction and the second section of jurisdiction moreover, guarantees that the leakproofness of shield tunnel section of jurisdiction junction is good, and follow-up difficult emergence gap leakage phenomenon reduces the maintenance work in later stage, satisfies the user demand.
4. This shield tunnel section of jurisdiction connection structure adopts safety mechanism's setting to realize strengthening and insurance to locking mechanism, when the safety plunger rod joint carries out the screens to locking slider in locking fixing base's inner chamber, restriction locking slider slides, consequently guaranteed locking slider and locking lever when pegging graft in locking downthehole, can guarantee to peg graft stably to ensure to connect the connection stability of fixed butt joint post, when pegging graft in the safe deposit box, can make the locking lever accomodate and restrict inside locking fixing base, the fixed butt joint post of joint of being convenient for connect is at the grafting of piecing locking intraductal.
It should be understood that the implementation of any of the embodiments of the invention is not intended to simultaneously possess or achieve some or all of the above-described benefits.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a connector-securing docking post according to an embodiment of the present invention;
fig. 3 is a schematic view of a first segment exploded structure according to an embodiment of the present invention;
fig. 4 is a schematic view of a second segment exploded structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a joint locking sleeve according to an embodiment of the present invention;
FIG. 6 is an internal cross-sectional view of a locking mechanism and safety mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic side cross-sectional view of a safety mechanism according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a locking mechanism according to an embodiment of the present invention.
In the figure: 1. a first segment; 101. positioning a butt joint column; 102. a first sealing clamping block; 103. a first sealing slot; 1031. a first gasket; 104. a first mounting groove; 105. a first docking post through-hole; 106. a buffer seal gasket; 2. a second segment; 201. positioning the butt joint hole; 202. a second sealing slot; 2021. a second gasket; 203. the second sealing clamping block; 204. a second mounting groove; 205. a second docking post through hole; 3. a first base plate; 301. limiting the supporting sleeve; 302. reinforcing the sliding table; 303. a sliding guide rail; 304. a fixed block; 4. the joint is used for fixing the butt-joint column; 401. a locking hole; 5. a second base plate; 6. a joint locking sleeve; 7. a locking mechanism; 701. locking the fixing seat; 7011. a first chute; 702. a first spring; 703. locking the sliding block; 7031. a safety groove; 7032. a first handle; 704. a locking lever; 8. a safety mechanism; 801. a sleeve seat; 8011. a second chute; 802. a second spring; 803. an insurance slide block; 804. a safety plunger; 805. and a second handle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the embodiments and the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be understood that the terms "comprises/comprising," "consists of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method as desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," and the like, does not exclude the presence of other like elements in a product, apparatus, process, or method that includes the element.
It is further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate describing the present invention and to simplify the description, and do not indicate or imply that the devices, components, or structures referred to must have a particular orientation, be configured or operated in a particular orientation, and are not to 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiment of the invention solves the problems that in the traditional concrete shield tunnel duct pieces, bolts are generally adopted for butt joint, the application method is easy to deform to influence the connection strength and the threads are easy to damage in the shield tunnel duct pieces with larger bearing capacity, in addition, the bolts are connected by means of rotary tools such as a spanner, and the like, when in operation by a plurality of people, the electric tools are limited, the connection is inconvenient, the traditional concrete shield tunnel duct pieces are generally made of commodity concrete, when the bearing capacity is larger in a soft base soil layer, the stability is insufficient, sedimentation or displacement can occur, in addition, the side edge common sealing structure is bonded by adopting single-layer or double-layer rubber, the seam leakage phenomenon is easy to occur after the service time is longer, and the later maintenance work is increased.
In order to better understand the above technical solution, the following detailed description will refer to the accompanying drawings and specific embodiments.
The embodiment of the invention discloses a shield tunnel duct piece connecting structure, which comprises a first duct piece 1 and a second duct piece 2 according to the attached drawings 1-8, wherein the first duct piece 1 and the second duct piece 2 are identical annular duct pieces, and are in circumferential butt joint connection during connection. A first base plate 3 is arranged on the first duct piece 1, and a joint fixing butt column 4 is arranged on the first base plate 3; the second duct piece 2 is provided with a second base plate 5, the second base plate 5 is provided with a joint locking sleeve 6, and the joint fixing butt joint column 4 is inserted into the joint locking sleeve 6 when the first duct piece 1 is in butt joint connection with the second duct piece 2; the second base plate 5 is also provided with a locking mechanism 7, the locking mechanism 7 comprises a locking fixed seat 701, a first spring 702 is arranged in the locking fixed seat 701, at least one end of the first spring 702 is fixedly connected with a locking sliding block 703, the locking sliding block 703 is arranged in the locking fixed seat 701 in a sliding way, the locking sliding block 703 is provided with a locking rod 704, and a locking hole 401 is formed in the joint fixing butt joint column 4; when the connector fixing butt-joint column 4 is inserted into the connector locking sleeve 6, the locking rod 704 is inserted into the connector locking sleeve 6 and movably clamped in the locking hole 401 to realize the locking and fixing of the first segment 1 and the second segment 2. Obviously, the shield tunnel segment connecting structure is connected with the first segment 1 and the second segment 2 by the aid of the first base plate 3, the connector fixing butt joint column 4, the second base plate 5, the connector locking sleeve 6 and the locking mechanism 7, is simple and convenient to operate in the connecting process, is high in connecting strength, is not easy to deform, is not easy to break away from and lose efficacy, and ensures that the concrete shield tunnel segment connector has a good connecting effect.
In some embodiments, referring to fig. 3, a first mounting groove 104 is preset on the first segment 1, the first base plate 3 is mounted in the first mounting groove 104 in an embedded manner, and the first mounting groove 104 is provided with a first docking post through hole 105 in advance on one side of the docking connection of the first segment 1, and the connector fixing docking post 4 can slide out of the first docking post through hole 105 to be inserted into the connector locking sleeve 6 or retract from the first docking post through hole 105. In the invention, only the mounting groove is reserved at the design position when the conventional concrete segment is prefabricated, the first base plate 3 is embedded in the first mounting groove 104, the hidden mounting is realized, the whole structure does not protrude out of the surface of the segment, and the attractive appearance and normal use of the segment are not affected.
With continued reference to fig. 3, in some embodiments, the joint securing docking post 4 is mounted on the first base plate 3 in the following manner: two fixed blocks 304 are installed at the both ends of the first base plate 3, a sliding guide rail 303 is connected between the two fixed blocks 304, and the joint fixing butt-joint column 4 is connected on the sliding guide rail 303 in a sliding manner through a reinforcing sliding table 302. Specifically, there are two connector fixing docking posts 4, the reinforcing sliding table 302 is connected with the rear end of the connector fixing docking post 4, and the reinforcing sliding table 302 is arranged on the sliding guide rail 303 in a penetrating manner and can slide back and forth on the sliding guide rail 303, and the connector fixing docking post 4 is driven to slide back and forth in the sliding process. The reinforcing sliding table 302 drives the joint fixing butt-joint column 4 to slide on one hand, and fixes the joint fixing butt-joint column 4 on the first base plate 3 together with the sliding guide rail 303 on the other hand, so that the joint fixing butt-joint columns 4 are connected and reinforced, and the stability of connection is ensured. In the invention, two sliding guide rails 303 are also arranged, two sliding guide rails 303 are arranged between the two sliding guide rails, and two joint fixing butt posts 4 are symmetrically distributed above and below the sliding guide rails 303, so that a stable plane frame structure is formed.
Further, a limit support sleeve 301 is fixed on the first base plate 3 at a side close to the end face of the first duct piece 1, and the connector fixing butt-joint column 4 is slidably arranged in the limit support sleeve 301. Setting up spacing support sleeve 301 realizes that the fixed butt joint post 4 of butt joint provides the side direction and supports, guarantees that the atress of the fixed butt joint post 4 of joint is stable.
Also referring to fig. 4, a second mounting groove 204 is preset on the second duct piece 2, the second base plate 5 is mounted in the second mounting groove 204 in an embedded manner, and a second butt-joint column through hole 205 is preset on one side of the second mounting groove 204, which is located at the butt-joint connection side of the second duct piece 2, and the second butt-joint column through hole 205 is used for sliding and penetrating the joint fixing butt-joint column 4.
With continued reference to fig. 5, in some embodiments, a first handle 7032 is fixedly connected to a side wall of the locking slider 703, and a first chute 7011 through which the first handle 7032 passes is formed on the locking fixing base 701, where the first handle 7032 can slide up and down in the first chute 7011. The provision of the first handle 7032 facilitates sliding of the locking slide 703 and locking bar 704 as a whole, thereby facilitating unlocking or locking of the splice securing docking post 4.
In some embodiments, referring to fig. 4-7, a safety mechanism 8 is disposed on a locking fixing seat 701, the safety mechanism 8 includes a sleeve seat 801, the sleeve seat 801 is fixedly connected to the locking fixing seat 701, a safety slide 803 is slidably connected to an inner cavity of the sleeve seat 801, a safety insert rod 804 is fixedly connected to the safety slide 803, a safety slot 7031 corresponding to the safety insert rod 804 in size is provided on the locking slide 703, and the safety insert rod 804 is inserted into the safety slot 7031 to realize locking safety of the locking mechanism 7. The locking mechanism 7 can be protected by the aid of the safety mechanism 8, and the locking mechanism 7 is prevented from loosening after the joint fixing butt joint column 4 is locked.
Specifically, as shown in fig. 6, when the locking rod 704 is in the position in the drawing, at this time, the safety plunger 804 is clamped in the inner cavity of the locking fixing seat 701 and clamps the locking slider 703, so as to limit the sliding of the locking slider 703, thereby ensuring that the locking slider 703 and the locking rod 704 are stably inserted when being inserted into the locking hole 401, and further ensuring that the connection of the butt-joint fixing post 4 is stable.
With continued reference to fig. 6 and 7, a second spring 802 is fixedly connected between the inner cavity of the sleeve seat 801 and the safety slide 803, a second handle 805 is fixedly connected to the side wall of the safety slide 803, a second chute 8011 corresponding to the second handle 805 is provided on the side wall of the sleeve seat 801, and the second handle 805 can slide back and forth in the second chute 8011. The second handle 805 is provided to facilitate the sliding and pulling of the safety slide 803 and the safety plunger 804, so as to realize the application and release of the safety mechanism 8.
In the invention, preferably, two groups of connector fixing butt-joint posts 4, connector locking sleeves 6, locking mechanisms 7 and safety mechanisms 8 are arranged, specifically, two connector fixing butt-joint posts 4 are arranged up and down in parallel, two groups of connector locking sleeves 6 are correspondingly arranged up and down in parallel on a second base plate 5, and a locking fixing seat 701 is arranged between the two groups of connector locking sleeves 6; the locking slide blocks 703 and the locking rods 704 on the locking slide blocks are symmetrically arranged in two groups up and down, and the first springs 702 are fixedly connected between the two groups of locking slide blocks 703; the sleeve seat 801 and the safety slide 803 and the safety insert 804 in the inner cavity thereof are arranged in two groups symmetrically up and down, and the second handle 805 is connected between the two groups of safety slide 803. The two groups of structures are symmetrically distributed, the structure is reasonable, and the connection is more stable.
Working principle: this shield tunnel section of jurisdiction connection structure is when carrying out the butt joint and uses, and the butt joint is convenient, uses bolt fastening first base plate 3 on first section of jurisdiction 1 at first, should use bolt fastening second base plate 5 on second section of jurisdiction 2, and the butt joint process can go on after the section of jurisdiction maintenance is accomplished, of course also can install the base plate again when on-the-spot construction.
When the shield tunnel segments are transported to the inside of a tunnel for assembly in site construction, two adjacent shield tunnel segments are abutted through the first segment 1 and the second segment 2. When the first duct piece 1 and the second duct piece 2 are in butt joint, the first handle 7032 is pulled at first, the upper and lower groups of first handles 7032 are pulled inwards, namely, the upper and lower groups of first handles 7032 are close to each other, the first handles 7032 drive the locking sliding blocks 703 to move, the two groups of locking sliding blocks 703 squeeze the first springs 702, meanwhile, the locking sliding blocks 703 drive the locking rods 704 to move and are close to each other, at the moment, the joint fixing butt joint column 4 is pushed transversely, the joint fixing butt joint column 4 slides along the limit support sleeve 301, the joint fixing butt joint column 4 is inserted into the joint locking sleeve 6, after the joint is completely clamped, the first handles 7032 are loosened, the first handles 7032 are pushed by resilience of the first springs 702 to enable the locking sliding blocks 703 to move, and the locking sliding blocks 703 drive the locking rods 704 to be inserted into the locking holes 401, so that the butt joint of the first duct piece 1 and the second duct piece 2 can be achieved, and the operation is simple and convenient.
When the safety mechanism 8 is started, when the first handle 7032 is pulled inwards, the safety plunger 804 is inserted into the safety groove 7031, so that the locking plunger 704 is in a state of being contained in the locking fixing seat 701, the connector fixing butt column 4 is convenient to insert into the connector locking sleeve 6, after the insertion is finished, the second handle 805 is pulled outwards, the safety plunger 803 can be driven to move, the safety plunger 803 drives the safety plunger 804 to move and separate from the safety groove 7031, at the moment, the limit on the locking plunger 703 is released, the locking plunger 703 is pushed to move under the elastic force of the first spring 702, and the locking plunger 703 drives the locking plunger 704 to be inserted into the locking hole 401, so that the butt column 4 is fixed; at this time, when the second handle 805 is released again, the second spring 802 rebounds to push the safety slide 803 and the safety insert rod 804 to move, so that the inner cavities of the safety insert rod 804 and the locking fixing seat 701 clamp the locking slide 703, and further the locking slide 703 is limited, and the locking rod 704 is ensured to be clamped in the locking hole 401 and not to be loosened easily, so that the first duct piece 1 and the second duct piece 2 are stably abutted.
This shield tunnel section of jurisdiction connection structure adopts first section of jurisdiction 1, second section of jurisdiction 2, first base plate 3, connects fixed butt joint post 4, second base plate 5, connects locking sleeve 6 and locking mechanism 7's setting, adopts traditional bolted connection mode between the substitution concrete shield tunnel section of jurisdiction, and this connected mode is in the connection process, and easy operation is convenient, labour saving and time saving need not with the help of external tool. For traditional bolted connection, connect fixed butt joint post 4 for the cylinder structure, for example adopt cylinder or square cylinder, hexagonal prism etc. and the surface does not have the screw thread of easy rupture on the bolt, also can not destroy stability and the wearability of material in processing, again to surface mill heat treatment after whole hardness, degree of stretching, wearability all be better than the bolt, utilize the fixed butt joint post 4 of joint to replace the bolt to bear sectional shearing force and axial pulling force, the fixed butt joint post 4 of joint compares bolt intensity high, be difficult for the deformation, guarantee that concrete shield tunnel segment connects effectual.
This shield tunnel section of jurisdiction connection structure adopts the setting of safety mechanism 8 can realize strengthening and insurance to locking mechanism 7, when safety plunger 804 joint is in the inner chamber of locking fixing base 701 and carries out the screens to locking slider 703, restriction locking slider 703 slides, consequently, guaranteed locking slider 703 and locking lever 704 when pegging graft in locking hole 401's inside, can guarantee to peg graft stably, thereby the fixed stability of connection of butt joint post 4 is fixed to the butt joint, when pegging graft in safe slot 7031's inside, can make locking lever 704 be in the state of accomodating in locking fixing base 701, consequently make the inside grafting of the fixed butt joint post 4 of joint in joint locking sleeve 6 convenient.
In some embodiments, referring to fig. 3 and fig. 4 again, the positioning butt-joint column 101 is fixedly extended from the first segment 1, the positioning butt-joint hole 201 is formed in the second segment 2, when the connector is in butt joint, the positioning butt-joint column 101 on the first segment 1 can be movably clamped in the inner cavity of the positioning butt-joint hole 201 on the second segment 2, the positioning butt-joint column 101 and the positioning butt-joint hole 201 are movably clamped so as to facilitate the circumferential butt joint of the first segment 1 and the second segment 2, and meanwhile, the positioning butt-joint column 101 can provide lateral support after the butt joint of the first segment 1 and the second segment 2 in the positioning butt-joint hole 201, so that the reinforcing effect is achieved, and the stress stability is ensured.
Further, a first sealing clamping block 102 is arranged on the end face of the first duct piece 1, a second sealing clamping groove 202 is formed in the end face of the second duct piece 2, a second sealing gasket 2021 is arranged in the second sealing clamping groove 202, and the first sealing clamping block 102 on the first duct piece 1 is movably clamped in the second sealing clamping groove 202.
Still further, the end face of the first segment 1 is provided with a first sealing clamping groove 103, a first sealing gasket 1031 is arranged in the first sealing clamping groove 103, the end face of the second segment 2 is provided with a second sealing clamping block 203, and the second sealing clamping block 203 of the second segment 2 is movably clamped in the first sealing clamping groove 103 of the first segment 1.
The second sealing gasket 2021 is extruded in the second sealing clamping groove 202 by means of the first sealing clamping block 102 in a clamping manner, and the second sealing clamping block 203 is clamped in the first sealing clamping groove 103 and extrudes the first sealing gasket 1031, so that clamping support and sealing are provided at the joint of the first duct piece 1 and the second duct piece 2, and good sealing effect is guaranteed.
Still further, the first duct piece 1 is provided with a first buffer sealing gasket 106, the first buffer sealing gasket 106 is disposed in the area of the non-sealing clamping block and the sealing clamping groove, such as the left and right edges of the end face of the first duct piece 1 in the figure, and the second duct piece 2 can also be provided with a second buffer sealing gasket (not shown in the figure) by means of which the first buffer sealing gasket 106 and the second buffer sealing gasket are attached, so that the attached positions of the two groups of shield tunnel duct pieces are sealed, and the first sealing gasket 1031 and the second sealing gasket 2021 are matched to form multiple seals, so that the tightness of the joint position of the shield tunnel duct piece is ensured, the subsequent gap water leakage phenomenon is not easy to occur, the maintenance cost in the later period is reduced, and the use requirement is met.
The construction process of the shield tunnel segment connecting structure comprises the following steps:
s10: manufacturing a first duct piece 1 and a second duct piece 2, and reserving a first mounting groove 104 and a second mounting groove 204 on the first duct piece 1 and the second duct piece 2;
when the duct piece is manufactured, firstly, steel fiber concrete is manufactured, sand, stone, cement and steel fibers are put into a forced mixer to be dry-mixed, so that the steel fibers are uniformly dispersed in the mixture, and water is added to be wet-mixed; then carrying out formwork supporting of the shield tunnel segment mould, reserving a base plate mounting groove during formwork supporting, blanking the manufactured steel fiber concrete in the mould, forming, backing the mould, and taking out the formed shield tunnel segment; and (5) performing sprinkling maintenance on the formed shield tunnel segment.
The manufacturing process of the shield tunnel segment connecting structure adopts a steel fiber concrete process, ensures that the shield tunnel segment has high strength, has higher stability compared with the common concrete when being stressed in a soft foundation soil layer, and has good stability and difficult sedimentation or displacement.
S20: bolt holes are formed in the first mounting groove 104 and the second mounting groove 204, and the first base plate 3 and the second base plate 5 are mounted in the first mounting groove 104 and the second mounting groove 204 by bolts.
S30: the construction site is used for butting the first duct piece 1 with the second duct piece 2.
S40: the two groups of locking slide blocks 703 are pushed by the first springs 702 in a natural state, the locking rods 704 are naturally inserted into the joint locking sleeve 6, and the first handles 7032 are required to be pulled inwards, namely the two first handles 7032 are pulled in opposite directions, and the locking slide blocks 703 drive the locking rods 704 to slide out of the joint locking sleeve 6;
in the case of the safety mechanism 8, the safety plunger 804 slides into the safety slot 7031 after the locking slide 703 is pulled in place, at which time the locking slide 703 is initially locked, and the locking plunger 704 does not spring back even after the hand is released.
S50: after the locking rod 704 slides out of the connector locking sleeve 6, the connector fixing butt-joint column 4 on the first segment 1 can be pushed out in a sliding manner, specifically, the reinforcing sliding table 302 is pushed to slide forward on the sliding guide rail 303, and the connector fixing butt-joint column 4 is driven to be inserted into the connector locking sleeve 6 on the second segment 2.
S60: after the connector fixing butt-joint column 4 is inserted into place, the locking slide blocks 703 rebound under the action of the first springs 702 or assist to push the first handles 7032 reversely, namely push the two groups of first handles 7032 upwards and downwards respectively, and the locking slide blocks 703 drive the locking rods 704 to penetrate through the connector locking sleeve 6 and insert into the locking holes 401 on the connector fixing butt-joint column 4 so as to realize locking and fixing;
in the case of the safety mechanism 8, since the safety plunger 804 slides into the safety slot 7031 to lock the locking slider 703, the second handle 805 needs to be pulled outwards at this time, the safety slider 803 drives the safety plunger 804 to slide out of the safety slot 7031, and the first spring 702 pushes the locking slider 703 to drive the locking lever 704 to insert into the connector locking sleeve 6 and movably clamped in the locking hole 401 on the connector fixing docking post 4.
S70: after the locking rod 704 is inserted into the locking hole 401 and locked, the second handle 805 is released, and the second spring 802 drives the safety slide 803 to drive the safety insert 804 to clamp the locking slide 703.
The shield tunnel segment connection structure is adopted to connect shield tunnel segments, the connection mode is simple and convenient to operate, time and labor are saved, external tools are not needed, the connection strength and the connection effect are ensured, the feasibility and the operation convenience of site construction are both considered, and the construction efficiency can be improved to a certain extent.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and that the above preferred embodiments may be freely combined and overlaid without departing from the spirit and scope of the invention, and that various changes and modifications may be made therein, which are all within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a shield tunnel section of jurisdiction connection structure, includes first section of jurisdiction (1) and second section of jurisdiction (2), first section of jurisdiction (1) and second section of jurisdiction (2) are with ring butt joint connection, its characterized in that:
a first base plate (3) is arranged on the first duct piece (1), and a joint fixing butt column (4) is arranged on the first base plate (3);
a second base plate (5) is arranged on the second duct piece (2), a joint locking sleeve (6) is arranged on the second base plate (5), and a joint fixing butt column (4) is inserted into the joint locking sleeve (6) when the first duct piece (1) is in butt connection with the second duct piece (2); and is also provided with
The second base plate (5) is further provided with a locking mechanism (7), the locking mechanism (7) comprises a locking fixed seat (701), a first spring (702) is arranged inside the locking fixed seat (701), at least one end of the first spring (702) is fixedly connected with a locking sliding block (703), the locking sliding block (703) is arranged in the locking fixed seat (701) in a sliding mode, the locking sliding block (703) is provided with a locking rod (704), and a locking hole (401) is formed in the joint fixing butt joint column (4); when the connector fixing butt-joint column (4) is inserted into the connector locking sleeve (6), the locking rod (704) is inserted into the connector locking sleeve (6) and movably clamped in the locking hole (401) to realize locking and fixing of the first duct piece (1) and the second duct piece (2).
2. The shield tunnel segment connection structure according to claim 1, wherein: the pipe fitting comprises a first pipe piece (1), and is characterized in that a first mounting groove (104) is preset in the first pipe piece (1), the first base plate (3) is embedded in the first mounting groove (104), a first butt joint column through hole (105) is preset in the first mounting groove (104) on one side of the butt joint connection of the first pipe piece (1), and the first butt joint column through hole (105) is used for sliding and penetrating the joint fixing butt joint column (4).
3. The shield tunnel segment connection structure according to claim 1, wherein: two fixing blocks (304) are arranged at two ends of the first base plate (3), a sliding guide rail (303) is connected between the two fixing blocks (304), and the joint fixing butt-joint column (4) is connected onto the sliding guide rail (303) in a sliding manner through a reinforcing sliding table (302); and a limit support sleeve (301) is fixed on one side of the first base plate (3) close to the end face of the first duct piece (1), and the joint fixing butt column (4) is arranged in the limit support sleeve (301) in a sliding penetrating mode.
4. The shield tunnel segment connection structure according to claim 1, wherein: the second duct piece (2) is provided with a second mounting groove (204) in advance, the second base plate (5) is embedded to be mounted in the second mounting groove (204), and the second mounting groove (204) is provided with a second butt joint column through hole (205) in advance on one side of the butt joint connection of the second duct piece (2), and the second butt joint column through hole (205) is used for sliding and penetrating the joint fixing butt joint column (4).
5. The shield tunnel segment connection structure according to claim 1, wherein: the side wall of the locking sliding block (703) is fixedly connected with a first handle (7032), a first sliding groove (7011) through which the first handle (7032) penetrates is formed in the locking fixing seat (701), and the first handle (7032) can slide up and down in the first sliding groove (7011).
6. The shield tunnel segment connection structure according to claim 1, wherein: be equipped with safety mechanism (8) on locking fixing base (701), safety mechanism (8) are including sleeve seat (801), sleeve seat (801) fixed connection is on locking fixing base (701), sliding connection has safety slide (803) in the inner chamber of sleeve seat (801), fixedly connected with insurance inserted bar (804) on safety slide (803), offered on locking slide (703) with insurance inserted bar (804) corresponding safe groove (7031) of size, insurance inserted bar (804) are inserted and are realized the locking insurance to locking mechanism (7) in safe groove (7031).
7. The shield tunnel segment connection structure according to claim 6, wherein: a second spring (802) is fixedly connected between the inner cavity of the sleeve seat (801) and the safety slide block (803), a second handle (805) is fixedly connected to the side wall of the safety slide block (803), a second chute (8011) corresponding to the second handle (805) is formed in the side wall of the sleeve seat (801), and the second handle (805) can slide back and forth in the second chute (8011).
8. The shield tunnel segment connection structure according to claim 1, wherein: the end face of the first duct piece (1) extends to form a positioning butt joint column (101), the end face of the second duct piece (2) is correspondingly provided with a positioning butt joint hole (201), the positioning butt joint column (101) is in plug-in connection with the positioning butt joint hole (201), and lateral support of the first duct piece (1) and the second duct piece (2) on a connecting surface is provided.
9. The shield tunnel segment connection structure according to claim 1, wherein: the end face of the first duct piece (1) is provided with a first sealing clamping block (102) and a first sealing clamping groove (103), the end face of the second duct piece (2) is provided with a second sealing clamping groove (202) and a second sealing clamping block (203), a first sealing gasket (1031) is arranged in the first sealing clamping groove (103), and a second sealing gasket (2021) is arranged in the second sealing clamping groove (202);
the end faces of the first duct piece (1) and/or the second duct piece (2) are provided with buffer sealing gaskets (106) in the areas of the non-sealing clamping blocks and the sealing clamping grooves.
10. A construction process of the shield tunnel segment connection structure according to any one of claims 1 to 9, characterized by comprising:
s10: manufacturing a first duct piece (1) and a second duct piece (2), and reserving a first mounting groove (104) and a second mounting groove (204) on the first duct piece (1) and the second duct piece (2);
s20: bolt holes are formed in the first mounting groove (104) and the second mounting groove (204), and the first base plate (3) and the second base plate (5) are mounted in the first mounting groove (104) and the second mounting groove (204) through bolts;
s30: the first duct piece (1) is in butt joint with the second duct piece (2) at a construction site;
s40: the first handle (7032) is pulled inwards, the locking sliding block (703) drives the locking rod (704) to slide out of the joint locking sleeve (6), and the safety insert rod (804) slides into the safety groove (7031);
s50: a joint fixing butt-joint column (4) on the first duct piece (1) is pushed out in a sliding manner, and the joint fixing butt-joint column (4) is inserted into a joint locking sleeve (6) on the second duct piece (2);
s60: the second handle (805) is pulled outwards, the safety slide block (803) drives the safety insert rod (804) to slide out of the safety groove (7031), and the first spring (702) pushes the locking slide block (703) to drive the locking rod (704) to be inserted into the connector locking sleeve (6) and movably clamped in the locking hole (401) on the connector fixing butt column (4);
s70: and the second handle (805) is loosened, and the second spring (802) drives the safety slide block (803) to drive the safety insert rod (804) to clamp the locking slide block (703).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310353294.5A CN116104528B (en) | 2023-04-04 | 2023-04-04 | Shield tunnel segment connecting structure and construction process thereof |
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| CN202310353294.5A CN116104528B (en) | 2023-04-04 | 2023-04-04 | Shield tunnel segment connecting structure and construction process thereof |
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| CN116104528B (en) | 2023-06-27 |
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