CN114352312A - Unequal-length self-adaptive multi-segment lining structure for tunnel crossing movable fracture zone - Google Patents
Unequal-length self-adaptive multi-segment lining structure for tunnel crossing movable fracture zone Download PDFInfo
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- CN114352312A CN114352312A CN202111425151.8A CN202111425151A CN114352312A CN 114352312 A CN114352312 A CN 114352312A CN 202111425151 A CN202111425151 A CN 202111425151A CN 114352312 A CN114352312 A CN 114352312A
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- 230000007704 transition Effects 0.000 claims description 25
- 239000011435 rock Substances 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 8
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000011178 precast concrete Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 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
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 230000004044 response Effects 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
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage 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
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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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- 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
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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
- E21D11/10—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
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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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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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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- 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 an unequal-length self-adaptive multi-section lining structure for a tunnel crossing movable fracture zone, 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 and is used for connecting the two lining structures. The water stopping and guiding type rubber water stopping flexible connecting belt which is arranged at the deformation joint and has certain stretchable, compressible, bendable deformation and local destructibility without influencing the waterproof function of the deformation joint weakens the longitudinal rigidity of the lining sections, does not longitudinally transfer the internal force and deformation of the structure, and can reduce the concrete compression cracking damage or even crushing damage at two sides of the deformation joint caused by mutual extrusion of adjacent sections; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, and the earthquake internal force peak value acting on the lining structure is reduced.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a self-adaptive multi-segment lining structure with unequal lengths for a tunnel to pass through a movable fracture zone.
Background
After the tunnel is excavated, the original balance of the stratum around the tunnel is damaged, and the tunnel is deformed or collapsed. In order to protect the stability of the surrounding rock and ensure driving safety, the tunnel must have a supporting structure of sufficient strength, i.e. a tunnel lining. Tunnel lining refers to a permanent structure that supports and maintains the long-term stability and durability of a tunnel. The function is as follows: supporting and maintaining the stability of the tunnel; maintaining the space required for train operation; preventing the weathering of the surrounding rock; relieving the influence of underground water, etc. Therefore, the tunnel lining must have sufficient strength, durability, and certain resistance to freezing, permeability, and erosion. The tunnel lining is mainly composed of an arch ring, side walls, an inverted arch and a bottom plate.
The movement of the active fracture zone has uncertainty and long-term property of time, which is of great importance to the safety influence of a lining structure during the operation of a tunnel, meanwhile, the geological conditions of a tunnel body of the tunnel passing through the active fracture zone section have the transition characteristics from hard rock to soft rock and from soft rock to hard rock, the physical and mechanical parameters of each part of the tunnel body are different and often have larger differences, the dynamic response and the peristaltic displacement of earthquake action under different geological conditions are asynchronous when an earthquake occurs, and the lining structure has certain adherence to the geology of the tunnel body, so that the asynchronous displacement of the lining structure at each part of the tunnel body is caused, and the damage of the lining structure is easily caused. As shown in fig. 1.
Disclosure of Invention
The invention provides an unequal-length self-adaptive multi-segment lining structure for a tunnel to pass through a movable fracture zone, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a tunnel crossing movable fracture zone unequal length self-adaptive multi-section lining structure comprises a tunnel body, wherein the tunnel body is formed by splicing a plurality of independent sections of lining structures, each lining structure is composed of a plurality of full-section steel arches uniformly arranged at intervals on a surrounding rock excavation surface along the longitudinal direction of the tunnel, an inner lining formed by splicing precast concrete plates and an outer lining made of reinforced concrete and poured and covered on the steel arches and the outer side of the inner lining, a deformation joint is arranged between every two adjacent lining structures, a flexible connecting belt is arranged in each deformation joint and penetrates through the two lining structures, each flexible connecting belt comprises a belt body, a plurality of arches arranged on one side of the belt body and a plurality of triangular cuts arranged on the other side of the belt body, the arches and the triangular cuts are arranged in one-to-one correspondence, and the triangular opening and the central symmetry axis of the arch are coaxially arranged.
Furthermore, the arch and the belt body enclose an isosceles trapezoid, or the arch and the belt body enclose a polygon with an arc top.
Further, the flexible connecting belt is formed by rubber injection molding.
Furthermore, the lining structure comprises a plurality of sections of first lining structures arranged on a tunnel body located at two ends of the movable fracture zone, a plurality of sections of second lining structures arranged on a tunnel body located at transition sections at two ends of the movable fracture zone, and a plurality of sections of third lining structures arranged on a tunnel body located at the movable fracture zone, wherein the section length of the second lining structure is less than the section length of the first lining structure and less than the section length of the third lining structure.
Furthermore, the lining structure also comprises a section of transition lining structure arranged between two adjacent sections of second lining structures and a third lining structure, wherein the length of the section of the second lining structure is less than that of the section of the transition lining structure and less than that of the section of the third lining structure.
Further, the length of the section of the second lining structure is set to be 8 meters, and the deformation joint between two adjacent second lining structures is set to be 15 centimeters.
Further, the length of the sections of the first lining structures is set to be 16 meters, and the deformation joint between two adjacent first lining structures is set to be 3 centimeters.
Further, the length of the section of the third lining structure is set to be 24 meters, and the deformation joint between two adjacent third lining structures is set to be 3 centimeters.
Further, the length of the section of the transition lining structure is set to be 16 m, and the deformation joint at the two ends of the transition lining structure is set to be 3 cm.
Further, the outer-lined reinforced concrete structure is of a grade of C35, and the maximum thickness thereof is set to 60 cm.
Compared with the prior art, the invention has the following beneficial effects:
the water stopping and guiding type rubber water stopping flexible connecting belt which is arranged at the deformation joint and has certain stretchable, compressible, bendable deformation and local destructibility without influencing the waterproof function of the lining section weakens the longitudinal rigidity of the lining section, does not longitudinally transfer the internal force and deformation of the structure, and can reduce the concrete compression cracking damage or even crushing damage at two sides of the deformation joint caused by mutual extrusion of adjacent sections; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, and the earthquake internal force peak value acting on the lining structure is reduced.
According to the invention, the lining structure is divided into an inner lining and an outer lining, wherein the inner lining is formed by splicing precast concrete plates, so that the trouble of forming a concrete layer by on-site injection is reduced, and the construction is more convenient; the outer lining adopts the mode of cast in situ, and the skin of same segmental lining adopts the pouring of same time to accomplish, has guaranteed concrete structure's integrality, and the fault phenomenon that produces when avoiding the section of time pouring concrete appears.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic representation of the displacement of the present invention during a tunnel seismic event across a mobile fracture zone;
FIG. 2 is a schematic structural diagram of an adaptive multi-segment lining structure with unequal lengths for a tunnel to pass through a movable fracture zone according to the present invention;
FIG. 3 is a schematic view of one of the flexible connecting straps of the present invention;
FIG. 4 is a schematic view of another flexible connecting band of the present invention.
In the figure: 100. a tunnel; 200. a movable fracture zone; 300. a transition section; 10. a first lining structure; 20. a second lining structure; 30. a third lining structure; 40. a transition lining structure; 1. a belt body; 2. arching; 3. and (5) carrying out triangular groove cutting.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. 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 this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can 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 as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 2, an embodiment of the invention discloses an unequal length self-adaptive multi-section lining structure of a tunnel crossing movable fracture zone, which comprises a tunnel body, wherein the tunnel body is formed by splicing a plurality of independent sections of the lining structure, the lining structure is composed of a plurality of full-section steel arches uniformly arranged at intervals on a surrounding rock excavation surface along the longitudinal direction of the tunnel, an inner lining formed by splicing precast concrete plates is paved on the surrounding rock excavation surface between the adjacent steel arches, an outer lining made of reinforced concrete and poured to cover the outer sides of the steel arches and the inner lining, a deformation joint (not shown) is arranged between every two adjacent lining structures, a flexible connecting belt is arranged in the deformation joint to connect 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 cuts 3 arranged on the other side of the belt body 1, the arch 2 and the triangular opening 3 are arranged in one-to-one correspondence, and the triangular opening 3 and the central symmetry axis of the arch 2 are coaxially arranged.
According to the invention, the lining structure is divided into an inner lining and an outer lining, wherein the inner lining is formed by splicing precast concrete plates, so that the trouble of forming a concrete layer by on-site injection is reduced, and the construction is more convenient; the outer lining adopts the mode of on-site pouring, and the outer layer of the same section lining is finished by the same pouring, thereby ensuring the integrity of the concrete structure, and avoiding the occurrence of the fault phenomenon generated during the concrete pouring in the middle section
When the tunnel 100 passes through the movable fracture zone 200, corresponding different-length lining structure independent sections are arranged according to different geological conditions of the tunnel body of the tunnel 100. The tunnel 100 is provided with a plurality of sections of first lining structures 10 at the tunnel body at two ends of the movable fractured zone 200, a plurality of sections of second lining structures 20 at the tunnel body of the transition section 300 at two ends of the movable fractured zone 200 of the tunnel 100, and a plurality of sections of third lining structures 30 at the tunnel body of the movable fractured zone 200 of the tunnel 100, wherein the section length of the second lining structures 20 is less than the section length of the first lining structures 10 and less than the section length of the third lining structures 30.
Further, a section of transition lining structure 40 is arranged between two adjacent sections of second lining structures 20 and third lining structures 30, and the length of the section of the second lining structure 20 is less than that of the section of the transition lining structure 40 and less than that of the section of the third lining structure 30.
According to the characteristics of dynamic response, peristaltic displacement and the like of different geological conditions of 200 sections of tunnel body of the tunnel 100 passing through the active fracture zone to earthquake action, corresponding lining structure independent sections with unequal lengths are arranged. Specifically, the lengths of the sections of the lining structure arranged in the sections with similar geological conditions are the same; the lengths of the sections of the lining structures arranged on the sections with larger geological condition difference are different; the shortest lining segment is placed for the section where the geological condition is abrupt (i.e., the junction of the better geological zone with the poorer geological zone of the mobile fracture zone 200-i.e., the transition section 300). Therefore, the rigidity ratio of the lining structure section to the surrounding geology is relatively small, and the peak value of the earthquake internal force acting on the lining structure section is relatively small when the earthquake occurs, 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 on the connection part of the sections or the local part of the structure, the lining structure cannot be continuously and integrally damaged, and the safety of the lining structure when the earthquake happens is ensured.
In the earthquake process, the lining structure sections tend to dislocate and rotate under the action of earthquake force (as shown in figure 1), different lining structure sections are kept relatively independent by arranging deformation joints among the sections, certain displacement spaces for the relative independent dislocating and rotating exist, and the damage of the lining structure can be concentrated on the connection part of the sections or the local part of the structure, so that the continuous and integral damage of the lining structure cannot be caused. The comprehensive consideration is that the difference of surrounding rocks at the joint part of the contact zone is large, the relative dislocation and the rotation quantity of the lining structure are also large, a deformation joint with the width of 15cm is adopted at the joint part, and a deformation joint with the width of 3cm is adopted at the transition section and the core part (as shown in figure 1).
Referring to fig. 3 and 4, in a specific embodiment, the arch 2 and the belt body 1 form an isosceles trapezoid (as shown in fig. 3), or the arch 2 and the belt body 1 form a polygon with a circular top (as shown in fig. 4). Further, the flexible connecting belt is formed by rubber injection molding. The water stopping and guiding type rubber water stopping flexible connecting belt which is arranged at the deformation joint and has certain stretchable, compressible, bendable deformation and local destructibility without influencing the waterproof function of the deformation joint weakens the longitudinal rigidity of the lining sections, does not longitudinally transfer the internal force and deformation of the structure, and can reduce the concrete compression cracking damage or even crushing damage at two sides of the deformation joint caused by mutual extrusion of adjacent sections; meanwhile, a large amount of earthquake energy is absorbed through deformation, stress concentration, local damage and the like of the flexible connecting belt, and the earthquake internal force peak value acting on the lining structure is reduced.
Specifically, the length of the first lining structure 10 is set to be 16 meters, and the deformation joint between two adjacent first lining structures 10 is set to be 3 centimeters. The length of the second lining structure 20 is set to be 8 m, and the deformation joint between two adjacent second lining structures 20 is set to be 15 cm. The 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 centimeters. The length of the section of the transition lining structure 40 is set to be 16 m, and the deformation joints at two ends of the transition lining structure 40 are set to be 3 cm.
Further, the outer lining is of a C35-grade reinforced concrete structure, and the maximum thickness of the outer lining is set to be 60 cm. The mechanical property of the tunnel lining structure should be matched with the existing geological environment, and the lining structure is not easy to be seriously damaged due to 'hard resistance measures' such as excessively increasing the rigidity or the 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 tunnel surrounding rocks, the larger the rigidity of the lining structure is, the larger the internal force value born correspondingly is, and the lining structure is made of ordinary reinforced concrete with moderate rigidity and has a circular section with structural symmetry and good compression performance. After the earthquake occurs, the seismic energy storage device is used as a reinforcing and repairing space for local damage to the lining structure.
The embodiment also discloses a tunnel structure actually constructed by applying 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 passing through the movable fracture zone 200, then the tunnel 100 is provided with a second lining structure 20 with 7 sections and a section length of 8 meters at the front end transition section 300, then the tunnel 100 is provided with a transition lining structure 40 with 1 section and a section length of 16 meters, then the movable fracture zone 200 is provided with a third lining structure 30 with 13 sections and a section length of 24 meters, then the tunnel 100 is provided with a transition lining structure 40 with 1 section and a section length of 16 meters, finally the tunnel 100 is provided with a second lining structure 20 with 7 sections and a section length of 8 meters at the rear end transition section 300, and the tunnel 100 is provided with a first lining structure 10 with 2 sections and a section length of 16 meters at the rear section passing through the 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 described above is calculated from the actual length of the tunnel 100.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A tunnel crossing movable fractured zone unequal length self-adaptive multi-section lining structure comprises a tunnel body, wherein the tunnel body is formed by splicing a plurality of independent sections of lining structures, and the tunnel crossing movable fractured zone unequal length self-adaptive multi-section lining structure is characterized in that the lining structures are composed of a plurality of full-section steel arches uniformly arranged at intervals on a surrounding rock excavation surface along the longitudinal direction of the tunnel, an inner lining formed by splicing precast concrete plates and an outer lining made of reinforced concrete poured and covered on the outer sides of the steel arches and the inner lining, a deformation joint is arranged between every two adjacent lining structures, a flexible connecting belt is arranged in the deformation joint and connected with the two lining structures, the flexible connecting belt comprises a belt body, a plurality of arches arranged on one side of the belt body and a plurality of triangular cuts arranged on the other side of the belt body, the arches are arranged in one-to-one correspondence with the triangular cuts, and the triangular opening and the central symmetry axis of the arch are coaxially arranged.
2. The unequal length adaptive multi-segment lining structure for tunnel-through movable fracture zones according to claim 1, wherein the arches enclose an isosceles trapezoid with the zone body, or the arches enclose a polygon with a circular arc top with the zone body.
3. The unequal length self-adaptive multi-segment lining structure of the tunnel-crossing movable fracture zone according to claim 1 or 2, wherein the flexible connecting band is formed by rubber injection molding.
4. The unequal length self-adaptive multi-section lining structure for the tunnel crossing movable fracture zone according to claim 1, wherein 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 transition sections of the movable fracture zone, and a plurality of sections of third lining structures arranged on the tunnel body at two transition sections of the movable fracture zone, wherein the section length of the second lining structure is less than the section length of the first lining structure and less than the section length of the third lining structure.
5. The unequal length adaptive multi-segmented lining structure for tunnel crossing movable fracture zones according to claim 4, wherein the lining structure further comprises a transition lining structure arranged between two adjacent segments of the second lining structure and the third lining structure, and the segment length of the second lining structure is less than the segment length of the transition lining structure is less than the segment length of the third lining structure.
6. The unequal length adaptive multi-segment lining structure for the tunnel-crossing movable fracture zone according to claim 4, wherein the segment length of the second lining structure is set to 8 m, and the deformation joint between two adjacent second lining structures is set to 15 cm.
7. The unequal length adaptive multi-segment lining structure for the tunnel-crossing movable fracture zone according to claim 6, wherein the segment length of the first lining structure is set to 16 m, and the deformation joint between two adjacent first lining structures is set to 3 cm.
8. The unequal length adaptive multi-segment lining structure for the tunnel-crossing movable fracture zone according to claim 7, wherein 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.
9. The unequal length adaptive multi-segment lining structure for the tunnel-crossing movable fracture zone according to claim 8, wherein the segment length of the transition lining structure is set to 16 m, and the deformation joint at two ends of the transition lining structure is set to 3 cm.
10. The unequal length adaptive multi-segment lining structure for the tunnel crossing 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111425151.8A 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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| CN202111425151.8A 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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| CN114352312B CN114352312B (en) | 2024-07-30 |
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| 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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2021
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|---|---|---|---|---|
| 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 |
| CN103195447A (en) * | 2013-04-08 | 2013-07-10 | 西南交通大学 | Construction method of quake-proof tunnel structure penetrating through flexible fracture zone |
| 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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