CN114352312B - Unequal-length self-adaptive multi-section lining structure for tunnel crossing movable fracture zone - Google Patents
Unequal-length self-adaptive multi-section lining structure for tunnel crossing movable fracture zone Download PDFInfo
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- CN114352312B CN114352312B CN202111425151.8A CN202111425151A CN114352312B CN 114352312 B CN114352312 B CN 114352312B CN 202111425151 A CN202111425151 A CN 202111425151A CN 114352312 B CN114352312 B CN 114352312B
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- 230000007704 transition Effects 0.000 claims description 19
- 239000011435 rock Substances 0.000 claims description 14
- 239000011150 reinforced concrete Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 6
- 239000011178 precast concrete Substances 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a tunnel crossing movable fracture zone unequal-length self-adaptive multi-section lining structure, which comprises a tunnel body, wherein the tunnel body is formed by splicing a plurality of independent sections of lining structures, a deformation joint is arranged between every two adjacent lining structures, and a flexible connecting belt is arranged in the deformation joint to connect the two lining structures. The longitudinal rigidity of the lining section is weakened through the water stop type rubber water stop flexible connecting belt which is arranged at the deformation joint and has certain stretching, compression, bending and deformation and can be locally destroyed without affecting the waterproof function, the internal force and deformation of the structure are not longitudinally transmitted, and the compression cracking damage even the crushing damage of the concrete at the two sides of the deformation joint caused by the mutual extrusion of adjacent sections can be reduced; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, so that the earthquake internal force peak value of the acting lining structure is reduced.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a self-adaptive multi-section lining structure with unequal lengths for a tunnel crossing movable fracture zone.
Background
After the tunnel is excavated, the original balance of stratum around the tunnel is destroyed, and the tunnel is deformed or collapsed. In order to protect the stability of surrounding rock and ensure driving safety, the tunnel must have a supporting structure with enough strength, namely a tunnel lining. Tunnel lining refers to a permanent structure that supports and maintains long-term stability and durability of a tunnel. The function is as follows: support and maintain stability of tunnels; maintaining the space required by the running of the train; preventing the weathering of surrounding rock; and the influence of groundwater is relieved. Thus, tunnel liners must have sufficient strength, durability, and some resistance to freezing, penetration, and erosion. The tunnel lining mainly comprises arch rings, side walls, inverted arches and a bottom plate.
The movement of the movable fracture zone has time uncertainty and long-term property, the influence on the safety of a lining structure during tunnel operation is critical, meanwhile, geological conditions of the tunnel crossing movable fracture zone section tunnel body have the characteristics of transition from hard rock to soft rock and from soft rock to hard rock, physical mechanical parameters of the tunnel body are different and often have large differences, different geological conditions are asynchronous to earthquake action dynamic response and peristaltic displacement when an earthquake occurs, the lining structure has certain dependence on the tunnel body geology, and the displacement of the lining structure of the tunnel body is asynchronous, so that the damage of the lining structure is easy to cause. As shown in fig. 1.
Disclosure of Invention
The invention provides a tunnel crossing movable fracture zone unequal-length self-adaptive multi-section lining structure, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a tunnel passes through unequal self-adaptation multisection lining structure of movable fracture area, includes the tunnel body, the tunnel body is formed by the concatenation of a plurality of lining structure independent sections, the lining structure by a plurality of full section steel arches that evenly space set up on the longitudinal country rock excavation face of tunnel, lay the inlayer lining that one deck was formed by precast concrete slab concatenation and pouring and cover on the country rock excavation face between adjacent steel arch and the outer lining that the reinforced concrete outside of inlayer lining was made constitutes, and be equipped with the deformation joint between every two adjacent lining structures, be equipped with flexible connecting band in the deformation joint and link these two lining structures, the flexible connecting band includes the area body, locates a plurality of archs of area body one side and locates a plurality of triangle of area body opposite side and cut open the mouth, the arch with triangle cut open mouthful one-to-one sets up, just the triangle cut open mouthful with the central symmetry axle coaxial setting of arch.
Further, the arch and the belt body enclose an isosceles trapezoid, or the arch and the belt body enclose a polygon with a circular arc top.
Further, the flexible connecting band is formed by rubber injection molding.
Further, the lining structure comprises a plurality of sections of first lining structures arranged on the tunnel body at two ends of the movable fracture zone, a plurality of sections of second lining structures arranged on the tunnel body at two ends of the movable fracture zone and a plurality of sections of third lining structures arranged on the tunnel body at two ends of the movable fracture zone, wherein the section length of the second lining structure is smaller than that of the first lining structure and smaller than that of the third lining structure.
Further, the lining structure further comprises a transition lining structure arranged between two adjacent sections of second lining structures and a third lining structure, and the section length of the second lining structure is less than that of the transition lining structure and less than that of the third lining structure.
Further, the segment length of the second lining structure is set to 8 meters, and the deformation joint between two adjacent second lining structures is set to 15 centimeters.
Further, the segment length of the first lining structure is set to be 16 meters, and the deformation joint between two adjacent first lining structures is set to be 3 cm.
Further, the segment length of the third lining structure is set to 24 meters, and the deformation joint between two adjacent third lining structures is set to 3 cm.
Further, the segment length of the transition lining structure is set to be 16 meters, and deformation joints at two ends of the transition lining structure are set to be 3 centimeters.
Further, the reinforced concrete structure of the outside lining adopts a C35 grade, and the maximum thickness is set to be 60 cm.
Compared with the prior art, the invention has the following beneficial effects:
According to the waterproof type rubber water-stop flexible connecting belt, the longitudinal rigidity of the lining section is weakened, the internal force and deformation of the structure are not longitudinally transmitted, and the compression cracking damage and even the crushing damage of concrete at two sides of the deformation joint caused by mutual extrusion of adjacent sections can be reduced by arranging the waterproof type rubber water-stop flexible connecting belt which is provided with a certain degree of stretchability, compressibility, bendable deformation and local damage without affecting the waterproof function of the waterproof type rubber water-stop flexible connecting belt at the deformation joint; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, so that the earthquake internal force peak value of the acting lining structure is reduced.
According to the invention, the lining structure is divided into an inner lining structure and an outer lining structure, wherein the inner lining structure is formed by splicing precast concrete plates, so that the trouble of forming a concrete layer by on-site spraying is reduced, and the construction is more convenient; the outer layer lining adopts a site pouring mode, and the outer layer of the same section lining is finished by adopting the same pouring, so that the integrity of a concrete structure is ensured, and the fault phenomenon generated during intermittent pouring of concrete is avoided.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic representation of displacement during a tunnel seismic event traversing a mobile fracture zone in accordance with the present invention;
FIG. 2 is a schematic structural view of a tunnel traversing active fracture zone unequal length adaptive multi-segment lining structure according to the present invention;
FIG. 3 is a schematic view of a flexible connecting band according to the present invention;
fig. 4 is a schematic structural view of another flexible connecting band according to the present invention.
In the figure: 100. a tunnel; 200. a movable breaking belt; 300. a transition section; 10. a first liner structure; 20. a second lining structure; 30. a third liner structure; 40. a transitional lining structure; 1. a belt body; 2. arching; 3. triangular cutting opening.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 2, an embodiment of the invention discloses a self-adaptive multi-segment lining structure with unequal lengths for a tunnel to pass through a movable fracture zone, which comprises a tunnel body, wherein the tunnel body is formed by splicing a plurality of independent segments of lining structures, each lining structure is formed by a plurality of full-section steel arches uniformly and alternately arranged on surrounding rock excavation surfaces along the longitudinal direction of the tunnel, an inner lining formed by splicing precast concrete slabs and an outer lining made of reinforced concrete and covering the steel arches and the outer side of the inner lining are paved on the surrounding rock excavation surfaces between the adjacent steel arches, a deformation joint (not shown) is arranged between every two adjacent lining structures, a flexible connecting belt is arranged in the deformation joint and is connected with the two lining structures, the flexible connecting belt comprises a belt body 1, a plurality of arches 2 arranged on one side of the belt body 1 and a plurality of triangular cut-open ports 3 arranged on the other side of the belt body 1, the arches 2 are arranged in one-to-one correspondence with the triangular cut ports 3, and the triangular cut ports 3 are coaxially arranged with the central symmetry axis of the arches 2.
According to the invention, the lining structure is divided into an inner lining structure and an outer lining structure, wherein the inner lining structure is formed by splicing precast concrete plates, so that the trouble of forming a concrete layer by on-site spraying is reduced, and the construction is more convenient; the outer layer lining adopts a cast-in-place mode, and the outer layer of the same segment lining is cast for the same time, thereby ensuring the integrity of the concrete structure and avoiding the occurrence of fault phenomenon generated when the concrete is poured in intervals
When the tunnel 100 passes through the movable fracture zone 200, corresponding independent sections of different length lining structures are arranged according to different geological conditions of the tunnel 100 body. The tunnel 100 is provided with a plurality of sections of first lining structures 10 at the holes at two ends of the movable fracture zone 200, the tunnel 100 is provided with a plurality of sections of second lining structures 20 at the holes at two ends of the movable fracture zone 200 at the transition sections 300, the tunnel 100 is provided with a plurality of sections of third lining structures 30 at the holes at the movable fracture zone 200, and the section length of the second lining structures 20 is less than that of the first lining structures 10 and less than that of the third lining structures 30.
Further, a transition lining structure 40 is arranged between two adjacent sections of the second lining structure 20 and the third lining structure 30, and the section length of the second lining structure 20 is less than the section length of the transition lining structure 40 and less than the section length of the third lining structure 30.
According to the characteristics of dynamic response and peristaltic displacement of the tunnel 100 to earthquake action under different geological conditions of the 200 sections of tunnel body passing through the movable fracture zone, corresponding independent sections of the unequal length lining structure are arranged. Specifically, the lengths of lining structural sections arranged on sections with similar geological conditions are the same; the lengths of lining structural sections arranged on the sections with larger geological condition differences are different; the lining segments that are provided for the region where abrupt changes in geologic conditions occur (i.e., the region where the better geology and the movable fracture zone 200 are in poor geological contact with the zone-i.e., the transition segment 300) are the shortest. Therefore, the rigidity ratio of the lining structure segment to the surrounding geology is relatively smaller, and when an earthquake occurs, the peak value of earthquake internal force acting on the lining structure segment is relatively smaller, so that the damage to the lining structure is reduced. In addition, the sections are kept relatively independent, when an earthquake happens, the damage of the lining structure is concentrated at the joint parts or the local parts of the sections, and the lining structure is not continuously and wholly damaged, so that the safety of the lining structure is ensured when the earthquake happens.
In the earthquake process, the sections of the lining structure are subjected to dislocation and rotation (as shown in figure 1) under the action of the earthquake, and the sections of different lining structures are kept relatively independent by arranging deformation joints between the sections, so that displacement spaces for certain relatively independent dislocation and rotation are formed, and the damage of the lining structure can be concentrated at the connecting parts of the sections or the local parts of the structure, so that the continuous and integral damage of the lining structure can not be caused. Considering the great difference of surrounding rocks at the joint of the contact belt, the relative dislocation and rotation amount of the lining structure are also great, a 15cm wide deformation joint is adopted at the joint, and a 3cm wide deformation joint is adopted at the transition section and the core section (as shown in figure 1).
Referring to fig. 3 and 4, in a specific embodiment, the arch 2 and the belt body 1 enclose an isosceles trapezoid (as shown in fig. 3), or the arch 2 and the belt body 1 enclose a polygon with a circular arc top (as shown in fig. 4). Further, the flexible connecting band is formed by rubber injection molding. The longitudinal rigidity of the lining section is weakened through the water stop type rubber water stop flexible connecting belt which is arranged at the deformation joint and has certain stretching, compression, bending and deformation and can be locally destroyed without affecting the waterproof function, the internal force and deformation of the structure are not longitudinally transmitted, and the compression cracking damage even the crushing damage of the concrete at the two sides of the deformation joint caused by the mutual extrusion of adjacent sections can be reduced; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, so that the earthquake internal force peak value of the acting lining structure is reduced.
Specifically, the segment length of the first lining structure 10 is set to 16 meters, and the deformation joint between two adjacent first lining structures 10 is set to 3 cm. The segment length of the second lining structure 20 is set to 8 meters, and the deformation joint between two adjacent second lining structures 20 is set to 15 cm. The segment length of the third lining structure 30 is set to 24 meters, and the deformation joint between two adjacent third lining structures 30 is set to 3 cm. The segment length of the transition lining structure 40 is set to 16 meters, and deformation joints at two ends of the transition lining structure 40 are set to 3 centimeters.
Further, the outer lining adopts a C35-grade reinforced concrete structure, and the maximum thickness of the outer lining is set to be 60 cm. The mechanical properties of the tunnel lining structure should be matched with the geological environment where the tunnel lining structure occurs, and the lining structure is not seriously damaged due to hard resistance measures such as excessively increasing the rigidity or thickness of the lining structure. In the earthquake process, the distribution of internal force values acting on the tunnel lining structure is mainly related to the rigidity ratio of surrounding rocks of the tunnel, the larger the rigidity of the lining structure is, the larger the corresponding internal force value born is, and the lining structure is a round section with moderate rigidity, ordinary reinforced concrete and good structural symmetry and compression performance. After earthquake, the reinforced concrete is used as a reinforcing and repairing space for locally damaging the lining structure.
The embodiment also discloses a tunnel structure actually constructed by the construction method, wherein the tunnel 100 is provided with a first lining structure 10 with 2 sections and a section length of 16 meters at the front section of the crossing movable fracture zone 200, a second lining structure 20 with 7 sections and a section length of 8 meters at the front transition section 300 of the tunnel 100, a third lining structure 30 with 1 section and a section length of 16 meters at the region of the movable fracture zone 200, a third lining structure 30 with 13 sections and a section length of 24 meters, a transition lining structure 40 with 1 section and a section length of 16 meters at the region of the movable fracture zone 200, a second lining structure 20 with 7 sections and a section length of 8 meters at the rear section of the crossing movable fracture zone 300, and a first lining structure 10 with 2 sections and a section length of 16 meters at the rear section of the crossing movable fracture zone 200. It will be appreciated that the number of segments of the first lining structure 10, the second lining structure 20 and the third lining structure 30 is calculated according to the actual length of the tunnel 100.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The tunnel passes through the self-adaptive multisection lining structure of unequal length of the movable fracture zone, including the tunnel body, the said tunnel body is spliced by independent segmental of several lining structures, characterized by that, the said lining structure is by several steel arches of full section that are set up in the longitudinal surrounding rock excavation surface of the tunnel evenly interval, lay one layer of lining made of precast concrete slab splice and pour and cover on the surrounding rock excavation surface between adjacent steel arches in the lining structure of the said steel arch and outside reinforced concrete of lining of a layer, and there are deformation joints between two adjacent lining structures, there are flexible connecting strips that link these two lining structures in the said deformation joint, the said flexible connecting strip includes the belt body, locate a plurality of arches on one side of the belt body and locate a plurality of triangular cut-open openings of the other side of the belt body, the said arch is set up with the said triangular cut-open opening one-to-one, and the central symmetry axis of the said triangular cut-open opening is coaxial with said arch;
The lining structure comprises a plurality of sections of first lining structures arranged on the tunnel body at two ends of the movable fracture zone, a plurality of sections of second lining structures arranged on the tunnel body at two ends of the movable fracture zone and a plurality of sections of third lining structures arranged on the tunnel body at the two ends of the movable fracture zone, wherein the section length of the second lining structures is less than that of the first lining structures and less than that of the third lining structures;
The lining structure further comprises a transition lining structure arranged between two adjacent sections of second lining structures and a third lining structure, wherein the section length of the second lining structure is less than that of the transition lining structure and less than that of the third lining structure;
The segment length of the second lining structures is set to be 8 meters, and the deformation joint between two adjacent second lining structures is set to be 15 cm;
The length of the section of each first lining structure is set to be 16 meters, and the deformation joint between two adjacent first lining structures is set to be 3 cm;
the segment length of the third lining structures is set to be 24 meters, and the deformation joint between two adjacent third lining structures is set to be 3 cm;
The length of the section of the transition lining structure is set to be 16 meters, and deformation joints at two ends of the transition lining structure are set to be 3 cm.
2. The adaptive multi-segment lining structure of claim 1, wherein the arch and the belt body enclose an isosceles trapezoid or a polygon with a circular arc top.
3. The self-adaptive multi-segment lining structure with unequal lengths for a tunnel to pass through a movable fracture zone according to claim 1 or 2, wherein the flexible connecting zone is formed by rubber injection molding.
4. The self-adaptive multi-segment lining structure with unequal lengths for a tunnel to pass through a movable fracture zone according to claim 1, wherein the reinforced concrete structure of the outer lining adopts a C35 grade, and the maximum thickness of the reinforced concrete structure is set to be 60 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425151.8A CN114352312B (en) | 2021-11-26 | 2021-11-26 | Unequal-length self-adaptive multi-section lining structure for tunnel crossing movable fracture zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425151.8A CN114352312B (en) | 2021-11-26 | 2021-11-26 | Unequal-length self-adaptive multi-section lining structure for tunnel crossing movable fracture zone |
Publications (2)
| Publication Number | Publication Date |
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| CN114352312A CN114352312A (en) | 2022-04-15 |
| CN114352312B true CN114352312B (en) | 2024-07-30 |
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| CN202111425151.8A Active CN114352312B (en) | 2021-11-26 | 2021-11-26 | Unequal-length self-adaptive multi-section lining structure for tunnel crossing movable fracture zone |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522977A (en) * | 2016-10-26 | 2017-03-22 | 西南交通大学 | Multistage tunnel shock absorption structure penetrating through active fault |
| CN106812545A (en) * | 2017-03-06 | 2017-06-09 | 北京交通大学 | A kind of tunnel aseismatic joint water guide formula waterstop |
| CN108952759A (en) * | 2018-06-27 | 2018-12-07 | 昆明理工大学 | A kind of tunnel lining structure and construction method using concrete filled steel tube and superimposed sheet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010013913A (en) * | 2008-07-02 | 2010-01-21 | Kanazawa Seisakusho:Kk | Water cutoff and protection device of tunnel penetrating through active fault or the like |
| CN103195447B (en) * | 2013-04-08 | 2014-12-10 | 西南交通大学 | Construction method of quake-proof tunnel structure penetrating through flexible fracture zone |
-
2021
- 2021-11-26 CN CN202111425151.8A patent/CN114352312B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522977A (en) * | 2016-10-26 | 2017-03-22 | 西南交通大学 | Multistage tunnel shock absorption structure penetrating through active fault |
| CN106812545A (en) * | 2017-03-06 | 2017-06-09 | 北京交通大学 | A kind of tunnel aseismatic joint water guide formula waterstop |
| CN108952759A (en) * | 2018-06-27 | 2018-12-07 | 昆明理工大学 | A kind of tunnel lining structure and construction method using concrete filled steel tube and superimposed sheet |
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| CN114352312A (en) | 2022-04-15 |
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