CN209942832U - Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel - Google Patents
Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel Download PDFInfo
- Publication number
- CN209942832U CN209942832U CN201920471337.9U CN201920471337U CN209942832U CN 209942832 U CN209942832 U CN 209942832U CN 201920471337 U CN201920471337 U CN 201920471337U CN 209942832 U CN209942832 U CN 209942832U
- Authority
- CN
- China
- Prior art keywords
- ring
- segment
- shear
- tunnel
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a section of jurisdiction inter-annular shear structure that passes through special stratum tunnel belongs to tunnel engineering technical field, wherein through corresponding pre-buried round steel ring and the pre-buried bolt cover of setting up respectively on two section of jurisdiction ring terminals faces that can coaxial match, and correspond the pre-buried bolt cover and set up the shear bolt that has the blotter, make shear bolt's one end can correspond the accordant connection in the pre-buried bolt cover, and its other end can correspond in the round steel ring that matches the back embedding and correspond at two section of jurisdiction rings, then form the inter-annular shear structure that the shield constructs the tunnel after two section of jurisdiction rings match. The utility model discloses a section of jurisdiction structure of shearing within a definite time, its simple structure sets up portably, can effectively promote the ability of shearing within a definite time of shield tunnel, ensures the stability and the security that shield tunnel set up, and the various atress situations that the accuracy is applicable to shield tunnel, and the flexibility of setting is high, and stability is strong, can promote the security and the stability that shield tunnel set up greatly, has better application prospect and spreading value.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, concretely relates to cross section of jurisdiction interannular shear structure in special stratum tunnel.
Background
In recent years, shield tunnels in China are rapidly developed and widely applied to the fields of subways, railways, highways, water and gas transmission and the like, so that the efficiency of human and object transportation is greatly improved, and the transportation cost is saved. In the construction process of the shield tunnel, the situation of crossing special strata, such as crossing active faults, soft and hard uneven strata, top load sudden change strata or geological condition sudden change strata and the like, is often encountered. When the shield tunnel passes through the special stratum, the risk of dislocation between the segment lining rings often exists, and the problem is one of important concerns when the shield tunnel is arranged in the special stratum.
At present, in order to ensure the setting safety and stability of the shield tunnel when passing through a special stratum, the most common method is to set a tenon and a mortise between segment rings of the shield tunnel. For example, in prior application CN 103924983B of the present applicant, a circular tenon-and-mortise type shearing resisting structure between segment rings of a shield tunnel is disclosed, which includes a first segment ring and a second segment ring adjacent to each other and disposed in a mutually matching manner along a longitudinal direction of the tunnel, a plurality of circular protrusions and circular grooves which are mutually matched are respectively disposed on a corresponding matching surface between the first segment ring and the second segment ring, the plurality of circular protrusions and the circular grooves are arranged in concentric circles according to a center of the tunnel circle, a diameter of the circular groove is greater than a diameter of the circular protrusion, and gaps between the circular protrusions and the circular grooves are equidistant. Through the setting of the inter-ring shearing structure of the segment, the inter-ring shearing capacity of the segment of the shield tunnel can be improved to a certain degree, and the stability of the shield tunnel can be ensured to a certain degree when the shield tunnel is subjected to dislocation stress in a special stratum. However, through continuous research and test and long-term practical application, the segment-to-ring shear structure has a large application defect.
Although the butt joint surface of the duct piece is provided with the distributed tenons, the duct piece can be simultaneously stressed by a plurality of tenons when dislocation occurs; however, the tenon structure of the inter-ring shear structure is often a concrete structure, the arrangement of the tenon structure is limited by the arrangement of the segment steel bars, the arrangement length of the tenon structure is often short, and the shear resistance of the tenon structure of the concrete structure is also poor. For the shield tunnel penetrating through a special stratum, the inter-ring dislocation resistance of the distributed concave-convex tenon structure is often limited, the possibility of inter-ring dislocation still exists, the application requirement of shield tunnel segments when penetrating through the special stratum cannot be fully met, and the shield tunnel segments have great limitation.
SUMMERY OF THE UTILITY MODEL
One or more in defect or improvement demand more than prior art, the utility model provides a section of jurisdiction inter-annular shear structure who passes through special stratum tunnel, wherein through correspond pre-buried round steel ring and the pre-buried bolt cover of setting up respectively on two section of jurisdiction ring terminals that can coaxial match, and correspond pre-buried bolt cover and set up the shear bolt that has the blotter, make shear bolt's one end can correspond the accordant connection in the pre-buried bolt cover, and its other end can correspond the round steel ring that the embedding corresponds after the matching in two section of jurisdiction rings, thereby form the inter-annular shear structure of shield tunnel, effectively promote the inter-annular shear ability of shield tunnel, ensure to pass through the shield tunnel's of special stratum setting safety.
In order to achieve the above purpose, the utility model provides a segment ring shearing resistant structure for a tunnel passing through special stratum, which comprises a first segment ring and a second segment ring which are arranged along the longitudinal direction of the tunnel and are adjacent to each other,
a plurality of embedded bolt sleeves and round steel rings which are arranged in concentric circles are arranged on the corresponding matching surface between the first segment ring and the second segment ring at intervals along the circumferential direction respectively, and each embedded bolt sleeve can be coaxially aligned with the corresponding round steel ring in the longitudinal direction after the two segment rings are coaxially matched;
the circular steel ring is of a cylindrical structure with one closed end and a cylindrical cavity in the middle, is pre-embedded at the end part of the second pipe sheet ring, does not protrude out of the end surface of the second pipe sheet ring, and enables the axis of the circular steel ring to be parallel to the axis of the second pipe sheet ring and the cylindrical cavity to be communicated with the end surface of the second pipe sheet ring;
the embedded bolt sleeve is embedded at the end part of the first pipe sheet ring along the longitudinal direction, and one end of the embedded bolt sleeve is communicated with the end surface of the first pipe sheet ring; correspondingly, all or part of the embedded bolt sleeves are respectively provided with a long-rod-shaped shear bolt, one end of the shear bolt is a connecting end which can be connected with the embedded bolt sleeves in a thread matching mode, the other end of the shear bolt is a limiting end which can be matched with the round steel ring, the limiting end can protrude out of the end face of the first pipe sheet ring when the connecting end is connected with the embedded bolt sleeves, a cushion pad with a certain length is sleeved on the periphery of the limiting end, and when the two pipe sheet rings are coaxially aligned and matched in a matching surface butt joint mode, the limiting end of each shear bolt can be coaxially embedded into the corresponding round steel ring.
As a further improvement, the steel ring sets up along the hoop equidistant, the buried bolt cover sets up along the hoop equidistant, and adjacent two the hoop interval of steel ring equals adjacent two the hoop interval of buried bolt cover.
As a further improvement of the utility model, the end of the limiting end is provided with a nut with an outer diameter larger than that of the shear bolt rod body, and the periphery of the limiting end is provided with an annular limiting boss along the circumferential direction;
the spacing boss of annular with the nut is at a certain distance of interval on vertical, just the blotter can correspond the cover and establish the spacing boss of annular with on the body of rod between the nut, and the external diameter of blotter is greater than respectively the external diameter of the spacing boss of annular with the external diameter of nut.
As a further improvement of the utility model, the blotter is the rubber pad, just the external diameter of rubber pad is less than the external diameter of ring steel.
As a further improvement of the utility model, the length of spacing end is less than the longitudinal length of ring steel, so that spacing end matches the embedding its tip does not butt when the round steel intra-annular the bottom of ring steel.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) the utility model discloses a cross inter-segment-ring shear structure of special stratum tunnel, wherein through corresponding pre-buried setting round steel ring and the pre-buried bolt cover of setting up respectively on two segment ring terminal surfaces that can coaxial match, and correspond the pre-buried bolt cover and set up the shear bolt that has the blotter, make one end of shear bolt correspond the matching connection in the pre-buried bolt cover, and its other end can imbed in the corresponding round steel ring after two segment rings correspond the matching, then form the inter-ring shear structure of shield tunnel after two segment rings match, with the matching combination of a plurality of shear bolts and corresponding round steel ring, the inter-ring shear ability of shield tunnel has been promoted greatly, the setting safety of the shield tunnel that has passed through special stratum has been guaranteed;
(2) the utility model discloses a section of jurisdiction inter-annular shear structure that passes through special stratum tunnel, it is through the quantity and the arrangement form of the shear bolt that sets up on the preferred first section of jurisdiction ring tip, make the shear bolt set up and the shield tunnel receive the inter-annular shear force when passing through the special stratum and suit, not only effectively guaranteed the stability of setting up of shield tunnel, can also effectively practice thrift the use of shear bolt, reduced the waste of material, promoted the stability and the economic nature that the shield tunnel set up;
(3) the utility model discloses a pass through structure of shearing between section of jurisdiction ring of special stratum tunnel, its simple structure sets up portably, can effectively promote the ability of shearing between the ring of shield tunnel, ensures the stability and the security that shield tunnel set up, and the various atress situations that are accurately applicable to shield tunnel, and the flexibility of setting is high, and stability is strong, can promote the security and the stability that shield tunnel set up greatly, has better application prospect and spreading value.
Drawings
Fig. 1 is a schematic combined end view of the first segment ring and the second segment ring assembled together according to the embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a shear steel member in an embodiment of the present invention when two segment rings are coaxially matched;
FIG. 3 is a schematic cross-sectional view of a shear steel member according to an embodiment of the present invention when the two segment rings are dislocated;
fig. 4 is a schematic view of a shear bolt structure according to an embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. the pipe fitting comprises a first pipe sheet ring, a shear bolt, a cushion pad, a nut, a ring-shaped limiting boss, a pre-buried bolt sleeve and a pipe fitting, wherein the shear bolt is 101, the cushion pad is 102, the nut is 103, the ring-shaped limiting boss is 104, and the pre-buried bolt sleeve is 105; 2. and a second pipe sheet ring, 201, a round steel ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The inter-segment-ring shear structure for penetrating through the special stratum tunnel in the preferred embodiment of the invention is shown in figures 1-4. Wherein, the structure of shearing between section of jurisdiction ring includes along vertically adjacent first section of jurisdiction ring 1 and the second section of jurisdiction ring 2 that the cooperation was arranged in proper order, and two section of jurisdiction rings are coaxial to be set up and to correspond the matching with the terminal surface, and correspond on the fitting surface of two section of jurisdiction rings and be provided with multiunit tongue and groove units along the hoop interval.
Specifically, the tenon and mortise unit in the preferred embodiment includes a plurality of shear bolts 101 disposed on one side end surface of the first pipe sheet ring 1 and a plurality of round steel rings 201 disposed on one side end surface of the second pipe sheet ring 2, and after the first pipe sheet ring 1 is correspondingly matched with the second pipe sheet ring 2, each shear bolt 101 on the end surface of the first pipe sheet ring 1 can be coaxially embedded into the corresponding round steel ring 201 at the end portion, and the end surface of the first pipe sheet ring 1 abuts against the end surface of the second pipe sheet ring 2.
Further, in a preferred embodiment, embedded bolt sleeves 105 are embedded at intervals in the circumferential direction at the end of the first pipe piece ring 1 corresponding to the shear bolts 101, each embedded bolt sleeve 105 is arranged in the axial direction, and one end of each embedded bolt sleeve 105 is communicated with the end surface of the first pipe piece ring 1; accordingly, the shear bolt 101 has a rod body in a long rod shape as shown in fig. 4, one end of which is a connecting end correspondingly matching the embedded bolt sleeve 105, and the other end of which is a limiting end protruding out of the end surface of the first segment ring 1 and correspondingly embedded in the round steel ring 201. Obviously, the connecting end and the sleeve 105 may be threaded.
Further, an end cap 103 having an outer diameter larger than that of the rod body of the shear bolt 101 is disposed at an end of the limiting end of the shear bolt 101, and an annular limiting boss 104 is disposed on an outer circumference of the limiting end corresponding to the end cap 103 in an annular direction, as shown in fig. 4, the end cap 103 and the annular limiting boss 104 are spaced apart by a certain distance in an axial direction; correspondingly, a buffer pad 102 is sleeved on the periphery of the rod body between the end cap 103 and the annular limiting boss 104, and two end faces of the buffer pad are respectively abutted against the end cap 103 and the annular limiting boss 104; further, the outer diameter of the buffer pad 102 is larger than the outer diameter of the rod body of the shear bolt 101, so that when dislocation occurs in the two pipe sheet rings, the outer periphery of the buffer pad 102 abuts against the inner peripheral wall of the round steel ring 201, and then the rod body of the limit end of the shear bolt 101 abuts against the inner peripheral wall of the round steel ring 201, and the buffer pad 102 can deform within a certain range under the stress condition to buffer the dislocation acting force borne by the shear bolt 101. Further preferably, the cushion pad 102 is a rubber pad.
Further, as shown in fig. 2 and 3, the circular steel ring 201 disposed on the end surface of the second tube sheet ring 2 on one side is preferably pre-embedded in the end surface of the second tube sheet ring 2 corresponding to the first tube sheet ring 1, and the end portion thereof does not protrude from the end surface of the second tube sheet ring 2 and is preferably disposed flush with the end surface; further, a cylindrical cavity is formed inside the circular steel ring 201, and the circular steel rings 201 are arranged according to the concentric circles of the second pipe sheet ring 2; obviously, a plurality of shear bolts 101 are arranged corresponding to a plurality of circular steel rings 201, that is, arranged according to the concentric circles of the first segment ring 1, and after the two segment rings are correspondingly matched, each shear bolt 101 can be embedded into the circular steel ring 201 by a limit end.
Further, the round steel rings 201 in the preferred embodiment are circumferentially arranged at equal intervals on the end surface of the second pipe sheet ring 2, as shown in fig. 1, and accordingly, the shear bolts 101 may be circumferentially arranged at equal intervals on the end surface of the first pipe sheet ring 1, that is, the embedded bolt sleeves 105 pre-embedded at the end of the first pipe sheet ring 1 are circumferentially arranged at equal intervals corresponding to the round steel rings 201; further, in a preferred embodiment, the number of the embedded bolt sleeves 105 embedded at the end of the first pipe piece ring 1 is the same as the arrangement number of the round steel rings 201, and after the two pipe piece rings are coaxially matched, each round steel ring 201 can be coaxially aligned with the corresponding embedded bolt sleeve 105 in the axial direction.
Further, the arrangement form of the shear bolts 101 at the end part of the first pipe sheet ring 1 can be optimized according to the load calculation result of the actual engineering; when the shield tunnel has a large shearing resistance requirement, namely the tunnel passes through a stratum area which is easy to have position dislocation, a shearing resistant bolt 101 is respectively arranged in each embedded bolt sleeve 105 at the end part of the first pipe sheet ring 1, namely after the two pipe sheet rings are correspondingly matched, the shearing resistant bolt 101 is embedded in each round steel ring 201; when the shearing requirements of the shield tunnel are general, part of the embedded bolt sleeves 105 at the end part of the first segment ring 1 can be idle, and the shearing bolts 101 are not matched and arranged in the embedded bolt sleeves 105, namely a plurality of embedded bolt sleeves 105 are arranged between two shearing bolts 101 arranged at intervals in the circumferential direction; when a plurality of embedded bolt sleeves 105 are selected at intervals, the shear bolts 101 arranged at intervals in the circumferential direction are preferably arranged at equal intervals, that is, the number of embedded bolt sleeves 105 which are left between two adjacent shear bolts 101 and are not matched with the shear bolts 101 is equal.
Further, when the shield tunnel penetrating through the special stratum is mainly vertically staggered, more shear bolts 101 may be preferably arranged on two vertical sides of the first segment ring 1, and fewer shear bolts 101 may be preferably arranged on two longitudinal sides of the first segment ring 1, for example, the shear bolts 101 are arranged in the embedded bolt sleeves 105 on the top and bottom of the first segment ring 1, and the shear bolts 101 are arranged on two longitudinal sides of the first segment ring 1 at intervals of the embedded bolt sleeves 105; obviously, when the shield tunnel traversing a special stratum is mainly transversely staggered, more shear bolts 101 may be disposed at both sides of the first segment ring 1 in the longitudinal direction, and fewer shear bolts 101 may be disposed at both sides thereof in the vertical direction. Certainly, the shear bolts 101 at the end of the first segment ring 1 are not limited to the arrangement form described above, and can be correspondingly arranged according to the actual stress situation of the shield tunnel, so that on the premise of ensuring the dislocation resistance of the shield tunnel, the waste of materials is further reduced, and the safety and stability of the shield tunnel arrangement are improved.
Further, when the first segment ring 1 and the second segment ring 2 are coaxially matched, the limit end of the shear bolt 101 can be embedded into the corresponding round steel ring 201, as shown in fig. 2, it is easy to see that the inner diameter of the round steel ring 201 is greater than the outer diameter of the shear bolt 101, while the outer diameter of the buffer pad 102 in the preferred embodiment is greater than the outer diameter of the rod body of the shear bolt 101, and the outer diameter of the buffer pad 102 is not greater than the inner diameter of the round steel ring 201, and the outer diameter of the buffer pad 102 in the preferred embodiment is smaller than the inner diameter of the round steel ring 201, so that dislocation can be allowed to occur between the two segment rings within a certain size, and then the buffer pad 102 abuts against the inner wall of the round steel ring 201 and is correspondingly deformed to offset the shear force between the two segment rings, as.
Further, the utility model discloses segment inter-ring shear structure in the preferred embodiment when the actual application, can be preferred to set up according to following step:
s1: calculating the allowed inter-ring dislocation amount after the shield tunnel is arranged and the shearing force required to be provided according to the tunnel exploration parameters of the shield tunnel, and determining the dislocation direction of the possible inter-ring dislocation of the shield tunnel, wherein the tunnel exploration parameters comprise engineering geological conditions, tunnel structure design, waterproof design and other factors;
s2: calculating the number of the shear bolts required to be arranged according to the shear force required to be provided and the shear strength provided by a single shear bolt, and determining the upward arrangement form of the shear bolts at the end part of the first segment ring according to the dislocation direction of the inter-ring dislocation possibly existing in the shield tunnel, namely determining the number and the positions of the embedded bolt sleeves correspondingly connected with the shear bolts;
s3: with a plurality of shear bolts accordant connection in the pre-buried bolt cover that corresponds, accomplish the setting that corresponds of first section of jurisdiction ring, then correspond first section of jurisdiction ring and second section of jurisdiction ring and assemble, correspond embedding round steel ring with each shear bolt's spacing portion to accomplish the correspondence of two section of jurisdiction rings and match, realize the corresponding setting of the structure that shears between the section of jurisdiction ring.
The inter-segment-ring shear-resistant structure for the tunnel penetrating through the special stratum is simple in structure and convenient to set, one end of each shear-resistant bolt can be correspondingly matched and connected in the embedded bolt sleeve through the corresponding embedded round steel ring and the embedded bolt sleeve on the end surfaces of the two coaxially matched segment rings respectively, and the other end of each shear-resistant bolt can be embedded into the corresponding round steel ring after the two segment rings are correspondingly matched, so that the corresponding matching connection of the two segment rings is realized, the inter-ring shear-resistant capacity of the two segment rings is improved, and the stress requirement of the shield tunnel penetrating through the special stratum is met; meanwhile, the shear resistance of the shear bolt is obviously stronger than that of a concrete structure, and the arrangement of the embedded bolt sleeve is not limited by the arrangement of the segment steel bars, so that the defect of short arrangement length of the conventional tenon and mortise can be effectively overcome by the limiting end of the shear bolt, and the shear resistance of the inter-ring shear structure can be further improved; the arrangement form of the shear bolts on the first segment ring can be optimized according to segment stress calculation, the stress situation of the shield tunnel in a special stratum is better met, the shear resistance between the segment rings is met, meanwhile, the waste of materials is further reduced, the setting stability and economy of the shield tunnel are improved, and the shield tunnel has better application prospect and popularization value.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A segment-to-segment shearing-resistant structure for tunnel crossing special stratum comprises a first segment ring and a second segment ring which are arranged along the longitudinal direction of the tunnel in a mutually matched way and are adjacent,
a plurality of embedded bolt sleeves and round steel rings which are arranged in concentric circles are arranged on the corresponding matching surface between the first segment ring and the second segment ring at intervals along the circumferential direction respectively, and each embedded bolt sleeve can be coaxially aligned with the corresponding round steel ring in the longitudinal direction after the two segment rings are coaxially matched;
the circular steel ring is of a cylindrical structure with one closed end and a cylindrical cavity in the middle, is pre-embedded at the end part of the second pipe sheet ring, does not protrude out of the end surface of the second pipe sheet ring, and enables the axis of the circular steel ring to be parallel to the axis of the second pipe sheet ring and the cylindrical cavity to be communicated with the end surface of the second pipe sheet ring;
the embedded bolt sleeve is embedded at the end part of the first pipe sheet ring along the longitudinal direction, and one end of the embedded bolt sleeve is communicated with the end surface of the first pipe sheet ring; correspondingly, all or part of the embedded bolt sleeves are respectively provided with a long-rod-shaped shear bolt, one end of the shear bolt is a connecting end which can be connected with the embedded bolt sleeves in a thread matching mode, the other end of the shear bolt is a limiting end which can be matched with the round steel ring, the limiting end can protrude out of the end face of the first pipe sheet ring when the connecting end is connected with the embedded bolt sleeves, a cushion pad with a certain length is sleeved on the periphery of the limiting end, and when the two pipe sheet rings are coaxially aligned and matched in a matching surface butt joint mode, the limiting end of each shear bolt can be coaxially embedded into the corresponding round steel ring.
2. The inter-segment-ring shear structure for penetrating through a tunnel in a special stratum according to claim 1, wherein the steel rings are arranged at equal intervals in a circumferential direction, the embedded bolt sleeves are arranged at equal intervals in the circumferential direction, and the circumferential distance between every two adjacent steel rings is equal to the circumferential distance between every two adjacent embedded bolt sleeves.
3. The inter-segment-ring shear structure crossing a special formation tunnel according to claim 1 or 2, wherein a nut having an outer diameter larger than that of the shear bolt shank is provided at an end of the limiting end, and an annular limiting boss is provided on an outer periphery of the limiting end in a circumferential direction;
the spacing boss of annular with the nut is at a certain distance of interval on vertical, just the blotter can correspond the cover and establish the spacing boss of annular with on the body of rod between the nut, and the external diameter of blotter is greater than respectively the external diameter of the spacing boss of annular with the external diameter of nut.
4. The inter-segment-ring shear structure for tunnels penetrating through special formations according to claim 1 or 2, wherein the cushion pad is a rubber pad, and the outer diameter of the rubber pad is smaller than that of the round steel ring.
5. The inter-segment-ring shear structure for tunnels penetrating through special strata according to claim 1 or 2, wherein the length of the limiting end is smaller than the longitudinal length of the round steel ring, so that the end of the limiting end does not abut against the bottom of the round steel ring when the limiting end is embedded in the round steel ring in a matching manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471337.9U CN209942832U (en) | 2019-04-09 | 2019-04-09 | Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471337.9U CN209942832U (en) | 2019-04-09 | 2019-04-09 | Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209942832U true CN209942832U (en) | 2020-01-14 |
Family
ID=69127105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920471337.9U Active CN209942832U (en) | 2019-04-09 | 2019-04-09 | Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209942832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958457A (en) * | 2019-04-09 | 2019-07-02 | 中铁第四勘察设计院集团有限公司 | Pass through the section of jurisdiction interannular shear structure and its setting method in special formation tunnel |
-
2019
- 2019-04-09 CN CN201920471337.9U patent/CN209942832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958457A (en) * | 2019-04-09 | 2019-07-02 | 中铁第四勘察设计院集团有限公司 | Pass through the section of jurisdiction interannular shear structure and its setting method in special formation tunnel |
| CN109958457B (en) * | 2019-04-09 | 2024-04-19 | 中铁第四勘察设计院集团有限公司 | Inter-segment ring shearing-resistant structure penetrating through special stratum tunnel and setting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105113502A (en) | Connector used for connecting two objects and prefabricated member used for connector during connection | |
| CN108330966B (en) | Centering support for pressure-bearing anchoring section of pull-press composite anchor rod | |
| CN209942832U (en) | Inter-segment-ring shear-resistant structure for penetrating through special stratum tunnel | |
| CN211849654U (en) | Bridge pile foundation reinforced structure | |
| CN105756190A (en) | Fabricated circular steel tube truss tubular joint and machining and manufacturing method thereof | |
| CN109958457B (en) | Inter-segment ring shearing-resistant structure penetrating through special stratum tunnel and setting method thereof | |
| CN202012075U (en) | Fast connection device of prestressed concrete pipe pile | |
| CN105178983A (en) | Circumferential prestress strengthening tunnel segment and manufacturing method | |
| CN110761806B (en) | Segment structure with horizontal pin type mortise and tenon joint and push-press fastening type joint connecting assembly | |
| CN202157465U (en) | Steel bar connecting sleeve | |
| CN110805450A (en) | Segment structure with combined mortise-tenon joint and female-head locking joint connecting assembly | |
| CN204780879U (en) | A prefabricated component for connecting connecting piece of two objects and connecting with this connecting piece | |
| CN212452621U (en) | Quick-assembly type tension-compression composite anchor rod | |
| CN204626393U (en) | For the pile extension assembly of concrete pile | |
| CN101086159B (en) | Annular extension limit flexible pressurized grouting bolt | |
| CN204920982U (en) | Hoop prestressed reinforcement tunnel section of jurisdiction | |
| CN204371413U (en) | A kind of highstrenghtpiston's pipe for escaping | |
| CN210033455U (en) | Assembled tunnel joint structure | |
| CN210067990U (en) | Petroleum drill pipe | |
| CN112664261A (en) | Socket-joint fixing convenient high-strength escape pipe | |
| CN205839742U (en) | The steel strand wires locking mechanism of prefabricated pile | |
| CN111021352A (en) | Pile feeding device | |
| CN216008549U (en) | Novel anchor rod | |
| CN219431861U (en) | Anchor rod with connector structure | |
| CN214273715U (en) | High-strength escape pipe convenient for socket installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |