CN108119161A - Structure is just built in the prefabricated flexible joint structure of across active breaking belt tunnel-liner and tunnel - Google Patents
Structure is just built in the prefabricated flexible joint structure of across active breaking belt tunnel-liner and tunnel Download PDFInfo
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- CN108119161A CN108119161A CN201711361577.5A CN201711361577A CN108119161A CN 108119161 A CN108119161 A CN 108119161A CN 201711361577 A CN201711361577 A CN 201711361577A CN 108119161 A CN108119161 A CN 108119161A
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- tunnel
- flexible joint
- segment
- lining
- section
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/006—Lining anchored in the rock
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
Abstract
The present invention provides the prefabricated flexible joint structure of across the active breaking belt tunnel-liner of one kind and tunnel lining structures, are related to high intensity Zone traffic base construction field.This structure includes Tunnel, splash guard, two lining sections and flexible joint；Section serves as a contrast two linings including first segment two, second section two serves as a contrast, flexible joint serves as a contrast for connecting the lining of first segment two with second section two, and the destruction for undertaking differential displacement, alternate displacement and macroseism energy between stratum and structure under strong motion, under the changing of the relative positions and strong motion, the connecting pin of two linings and flexible joint longitudinally can freely stretch and circumferential deformation.This structure actively guides on stratum and architectural difference displacement, alternate displacement and macroseism energy to the intersegmental flexible joint in tunnel, reach the shock resisting purpose of Cross-fault leveling and large-scale activity fracture belt tunnel structure to damage connector as cost, safety guarantee is provided for the rescue and relief work after personnel, equipment, the safety of equipment and shake, while reaches shake rear joint to repair in time.
Description
Technical field
It is prefabricated in particular to across the active breaking belt tunnel-liner of one kind the present invention relates to traffic base construction field
Structure is just built in flexible joint structure and tunnel.
Background technology
Enter the all-round developing stage recently as China's traffic base construction, more and more traffic tunnels are passed through across disconnected
Layer region or large-scale activity fracture belt, as Shi Gang dams seepage tunnel, Baoji-Chengdu Railway drip sub- tunnel, Dou Wen highways wineshop's a strip of land between hills tunnel,
The all sub- tunnel of river in Shangdong Province high speed dragon's cave-stalactite cave, Zi Ping-pu tunnel, Long Chi tunnels etc. are positioned at highlight lines earthquake region and pass through fault belt.
It passes through shear-zone tunnel to be substantially mutated since there are country rock rigidity, under macroseism and fault movement effect tunnel is caused lining cutting occur
The damages such as oblique, circumferential, longitudinal cracking, lining cutting arch ring part and entirety drop, inverted arch protuberance, faulting of slab ends.It is counted according to pertinent literature
Data show, wear wrong become of shear-zone tunnel structure maximum perpendicular after disaster-stricken and can reach 4.0m, horizontal distortion it is maximum up to 3.0m it
It is more.Due to the influence of shear-zone high stress concentrations, in seismic process lining cutting and country rock cave in or secondary lining slump can also make
It is one of earthquake of tunnel most serious into tunnel Feng Dong.Serious threat is to normal traffic under the changing of the relative positions of Cross-fault leveling tunnel and strong motion
Order and people life property safety influence construction safety, operation maintenance and the economic benefit of project under construction project.It is domestic at present
Have some achievements to the research of Cross-fault leveling tunnel earthquake and shock-damping structure outside, but for Cross-fault leveling and large-scale activity fracture belt tunnel
Road sets the research of the specific method of shock-damping structure measure still not mature enough, negligible amounts.
The content of the invention
It, actively will be strong it is an object of the invention to provide the prefabricated flexible joint structure of across the active breaking belt tunnel-liner of one kind
Vibrations lower differential displacement, alternate displacement and macroseism energy between stratum and structure are guided to specific compliance connector between tunnel segment
Section.Ensure that tunnel lining structure has stronger shock resistance, prefabricated flexible joint undertakes the changing of the relative positions and strong motion and damages, so as to reach
To the shock resisting purpose of Cross-fault leveling and large-scale activity fracture belt tunnel structure, for robbing after personnel, the safety of plant and shake
It repairs and provides safeguard in danger.
Another object of the present invention is to provide a kind of tunnel just to build structure, including at least one above-mentioned across active fault
The band prefabricated flexible joint structure of tunnel-liner.This tunnel safety is reliable, highly practical.
What the present invention was realized in：
The prefabricated flexible joint structure of across the active breaking belt tunnel-liner of one kind, including at the beginning of the tunnel that sets gradually from outside to inside
Phase supporting, splash guard, two lining sections and flexible joint；
The first segment two that two lining sections include being oppositely arranged serves as a contrast, second section two serves as a contrast, and flexible joint is used to connect first segment
Two lining of section is served as a contrast with second section two, and flexible joint is used to undertake under strong motion differential displacement, alternate displacement between stratum and structure
And the destruction of macroseism energy, under the changing of the relative positions and strong motion, first segment two is lined with and the company of the lining of second section two and flexible joint
Connecing end longitudinally can freely stretch and circumferential deformation.
Further, in the preferred embodiment, the lining of first segment two has first segment main reinforcement, second section two
Lining has second segment main reinforcement, and first segment main reinforcement is set with second segment main reinforcement overlap joint；
Flexible joint includes at least one light foam concrete block and at least two longitudinally disposed steel bushings, steel bushing
Cylinder is arranged in light foam concrete block, and the both ends of steel bushing, which are respectively protruding into, is anchored in the lining of first segment two and second section two
In lining, and steel bushing has preformed hole, and first segment main reinforcement and second segment main reinforcement are used to stretch into the pre- of the steel bushing of correspondence position
In boxing out, under the changing of the relative positions and strong motion, first segment main reinforcement can longitudinal circumferential change of freely stretching in steel bushing with second segment main reinforcement
Shape.Further, in the preferred embodiment, the total length of flexible joint is 35~45cm, preferred length 40cm；
Steel bushing stretches into the length being anchored in the lining of first segment two and the lining of second section two and is at least 5cm respectively.It is further preferred that
First segment main reinforcement and the HRB400 grade reinforcing bars that second segment main reinforcement is that diameter specifications are φ 20, first segment main reinforcement and second segment main reinforcement
Least anchorage length be 77.3~110.4cm.
Further, in the preferred embodiment, the strong concrete that the lining of first segment two is served as a contrast with second section two
It spends for C35.
Further, in the preferred embodiment, a diameter of 40~φ of φ 50 of steel bushing, it is preferable that a diameter of
φ 45, the both ends of steel bushing are fixedly arranged on the lining of first segment two by way of anchoring and are served as a contrast with second section two respectively.
Further, in the preferred embodiment, a diameter of 40~φ of φ 50 of steel bushing, it is preferable that a diameter of
φ 45, the both ends of steel bushing are fixedly arranged on by way of anchoring respectively in the lining of first segment two and the lining of second section two.Further
Ground, in the preferred embodiment, light foam concrete block are pre- in the light foam concrete of arcuation including 7~9 pieces
System assembling block, and 7~9 pieces of light foam concrete flat moulded prefabricated blocks form tunnel ring-type.Further, in the preferable of the present invention
In embodiment, multiple wedge shaped jacking blocks that bind are provided at the top of 7~9 pieces of light foam concrete flat moulded prefabricated blocks, are bound
Jacking block piecemeal is installed on cricoid light foam concrete block.
Further, in the preferred embodiment, there is in preliminary bracing I-steel, and the position of I-steel with
The position of flexible joint corresponds to.
Structure is just built in a kind of tunnel, including at least one above-mentioned across active breaking belt prefabricated flexible joint knot of tunnel-liner
Structure.
The advantageous effect of said program：
The present invention provides the prefabricated flexible joint structure of across the active breaking belt tunnel-liner of one kind and tunnels.There is provided across work
The prefabricated flexible joint structure of dynamic fracture belt tunnel-liner includes the country rock, Tunnel, waterproof set gradually from outside to inside
Plate, two lining sections.Two lining sections include that the first segment two that is oppositely arranged serves as a contrast, second section two is lined with and for connecting first segment two
Lining with second section two serve as a contrast flexible joint, flexible joint for undertake differential displacement between stratum and structure, alternate displacement and
The destruction of macroseism energy, under the changing of the relative positions and strong motion, first segment two is lined with and the connection of the lining of second section two and flexible joint
End longitudinally can freely stretch and circumferential deformation.
It so designs, actively guides differential displacement, alternate displacement and macroseism energy between stratum and structure to tunnel section
Intersegmental specific compliance joint section.Ensure that tunnel lining structure has stronger shock resistance, flexible joint undertakes the changing of the relative positions and strong motion
It destroys, is safety and the shake of personnel's plant so as to reach the shock resisting purpose of Cross-fault leveling and large-scale activity fracture belt tunnel
Reparation of speedily carrying out rescue work afterwards provides safeguard.
In conclusion it is segmented, flexible joint is set between segment and adds in country rock rigidity change dramatically region liner structure
Vibration-absorptive material is stitched in embedding, achievees the effect that error resilience shock absorbing.The design based on by previous common " passive " it is " anti-" shake, " subtracting " shake
Thinking by the thinking of structure earthquake " guiding " to specific compliance region, makes tunnel integrally have and adapts to the big change of Cross-fault leveling to " active "
The ability of shape and avoid under the changing of the relative positions and macroseism liner structure generate it is serious destroy, achieve the purpose that ensure liner structure safety.
The tunnel of offer, including at least one above-mentioned across active breaking belt prefabricated flexible joint structure of tunnel-liner.This
Tunnel safety is reliable, highly practical.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is that the structure for the prefabricated flexible joint structure of across active breaking belt tunnel-liner that the embodiment of the present invention provides is shown
It is intended to；
Fig. 2 is the enlarged drawing of local I I in Fig. 1；
Fig. 3 is the structure diagram for the light foam concrete block that the embodiment of the present invention provides；
Fig. 4 is the prefabricated flexible joint structure of across active breaking belt tunnel-liner that provides of the embodiment of the present invention along 1-1
The cross-section cutaway view in direction；
Fig. 5 is the vertical of multiple across active breaking belt prefabricated flexible joint structures of tunnel-liner that the embodiment of the present invention provides
To layout drawing.
Icon：The prefabricated flexible joint structure of across the active breaking belt tunnel-liners of 100-；101- country rocks；103- tunnel initial-stage branch
Shield；105- splash guards；107- bis- serves as a contrast section；109- first segments two serve as a contrast；111- second sections two serve as a contrast；113- flexible joints；115-
First segment main reinforcement；117- second segment main reinforcements；119- light foam concrete blocks；121- steel bushings；123- preformed holes；125- first
End；127- second ends；129- I-steel.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can configure to arrange and design with a variety of.Therefore, below to provide in the accompanying drawings the present invention reality
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to explanation in the description of the embodiment of the present invention, term " " center ", " on ", " under ", "left", "right",
The orientation or position relationship of the instructions such as " vertical ", " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship,
Either the invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplification retouched
It states rather than indicates or imply signified device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and
It is not intended that instruction or hint relative importance.
In the description of the embodiment of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term
" setting ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or detachably connecting
It connects or is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be on or below second feature
Contacted directly including the first and second features, can also include the first and second features not be contact directly but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below immediately below second feature and obliquely downward or be merely representative of fisrt feature level height
Less than second feature.
Earthquake resistant construction such as pre-add fixing structure, section dig etc. passes through 101 mass of shear-zone tunnel surrounding both for improvement
In the hope of promoting tunnel structure anti-seismic performance.These existing technical solutions promote not the active anti-seismic performance of liner structure in itself
Greatly, the mutation for adding tunnel structure quality while planform exacerbates country rock 101 and rigidity of structure mismatch, and macroseism occurs
When the damage of easy recurring structure or cave in instead.Furthermore these existing schemes can dramatically increase excavation area and project cost, extend
The tunnel construction duration.
Damping layer structure is set to cut down the effect unobvious of Cross-fault leveling liner structure stress concentration in macroseism, in country rock
When 101 changing of the relative positions relative displacements are larger, buffer layer reaches saturation to digesting and assimilating for displacement, easily causes the drawing crack of tunnel structure or cuts
Destruction is split, tunnel structure security and stability can not be met, shows and is particularly acute in large-scale activity fracture belt；Common absorbing joint
Structure, after being set at shear-zone start-stop, Lining Ring internal force can not be improved at tomography, and since lining cutting is divided into
Shorter structural unit, the destruction suffered by single lining cutting are likely more seriously, while absorbing joint length is shorter, can make in tomography
Liner structure under changing of the relative positions effect generates larger absolute displacement, makes tunnel that faulting of slab ends occur at tomography.
For it is above-mentioned the shortcomings that, refering to Fig. 1 to Fig. 5, it is pre- to present embodiments provide a kind of across active breaking belt tunnel-liner
Flexible joint structure 100 processed, including：Tunnel 103, the splash guard 105, two set gradually from outside to inside serves as a contrast section 107
And flexible joint 113.It should be noted that outer layer of the country rock 101 in tunnel in Tunnel 103.
In the present embodiment, please refer to Fig.1 includes the first segment two being oppositely arranged with Fig. 2 and Fig. 5, two lining sections 107
Lining 109, the lining of second section two 111.Flexible joint 113 serves as a contrast 111 for connecting the lining of first segment two 109 with second section two.It is soft
Property connector 113 be used to undertake the destruction of differential displacement, alternate displacement and macroseism energy between stratum and structure under strong motion, in mistake
Under dynamic and strong motion, the lining of first segment two 109 and the connecting pin of the lining of second section two 111 and flexible joint 113 can be longitudinal
It freely stretches and circumferential deformation.Flexible joint is set between 101 rigidity change dramatically region liner structure segmentation of country rock, segment
113 and filleting vibration-absorptive material is added, achieve the effect that error resilience shock absorbing.The design is based on by " anti-" of previous common " passive "
Shake, " subtracting " shake thinking by the thinking of structure earthquake " guiding " to specific compliance region, make tunnel integrally with adaptation to " active "
The ability of Cross-fault leveling large deformation and avoid under the changing of the relative positions and macroseism liner structure generate it is serious destroy, reach and ensure liner structure peace
Full purpose.
In detail, the lining of first segment two 109 has first segment main reinforcement 115, and the lining of second section two 111 has second segment main reinforcement
117, first segment main reinforcement 115 is set with the overlap joint of second segment main reinforcement 117；Flexible joint 113 includes at least one light foam coagulation
The longitudinally disposed steel bushing 121 of soil block 119 and at least two, steel bushing 121 are arranged in light foam concrete block 119,
The both ends of steel bushing 121, which are respectively protruding into, to be anchored in the lining of first segment two 109 and the lining of second section two 111.Stretch into first segment
One end of two linings 109 is first end 125, and the one end for stretching into the lining of second section two 111 is second end 127.And steel bushing 121 has
Preformed hole 123, first segment main reinforcement 115 is used to stretch into the preformed hole 123 of correspondence position with second segment main reinforcement 117, in the changing of the relative positions
Under strong motion, first segment main reinforcement 115 and second segment main reinforcement 117 can freely stretch cyclic deformation longitudinal direction in steel bushing 121.This
Sample designs, and actively guides differential displacement, alternate displacement and macroseism energy between stratum and structure to specific soft between tunnel segment
113 sections of connector of property.Ensureing that tunnel lining structure has stronger shock resistance, flexible joint 113 undertakes the changing of the relative positions and strong motion destroys,
So as to reach the shock resisting purpose of Cross-fault leveling and large-scale activity fracture belt tunnel, for robbing after the safety of personnel's plant and shake
It repairs and provides safeguard in danger.
As preferred scheme, the total length of flexible joint 113 is 35~45cm, preferred length 40cm.This length is
It is strictly calculated according to conventional tunnel size.Certainly, in the other embodiment of invention, the length of flexible joint 113
Degree can also be adjusted according to different tunnel demands, be not limited in 35~45cm.
It is anchored in it is further preferred that steel bushing 121 stretches into the lining of first segment two 109 and the lining of second section two 111
Length is at least 5cm respectively.This length is also to be obtained afterwards by strictly testing with calculating.In the other embodiment of the present invention
In, it stretches into the lining of first segment two 109 and the length of the lining of second section two 111 can also be adjusted according to demand, the present invention is not
It limits.
It is further preferred that the concrete strength of the lining of first segment two 109 and the lining of second section two 111 is C35.Certainly,
In other embodiments of the invention, the coagulation degree intensity of the one or two vehicle and the lining of second section two 111 is not limited in C35, also
It can make choice according to demand, the present invention does not limit.
As preferred scheme, first segment main reinforcement 115 and second segment main reinforcement 117 are HRB400 that diameter specifications are φ 20 etc.
The least anchorage length of grade reinforcing bar, first segment main reinforcement 115 and second segment main reinforcement 117 is 77.3~110.4cm (according to specification
GB50204-2002).Certainly, in other embodiments of the invention, bar gauge can make choice according to demand, this hair
It is bright not limit.
As preferred scheme, 121 a diameter of 40~φ of φ 50 of steel bushing, it is preferable that a diameter of φ 45, steel bushing 121
Both ends be fixedly arranged on respectively by way of anchoring first segment two lining 109 with second section two lining 111 in.It is being attached
When, a diameter of 45 left end of steel sleeve is anchored in I sections of lining cutting, and right end is poured in next mould two lining after complete light foam concrete to be assembled
II sections of lining cutting are anchored in when building.
In the present embodiment, Fig. 3 and Fig. 4 are referred to, light foam concrete block 119 includes 7~9 pieces of lightweights in arcuation
Foam concrete flat moulded prefabricated block, and 7~9 pieces of light foam concrete flat moulded prefabricated blocks form tunnel ring-type.Light foam mixes
Solidifying soil block 119 directly can carry out Replacement and Repair after destroying with precast segment.
As preferred scheme, it is provided at the top of 7~9 pieces of light foam concrete flat moulded prefabricated blocks multiple wedge shaped
Bind jacking block, and the jacking block piecemeal that binds is installed on cricoid light foam concrete block 119.
As preferred scheme, there is I-steel 129, and the position of I-steel 129 and flexible joint 113 in preliminary bracing
Position it is corresponding.
It should be noted that 113 primary condition of flexible joint is for across active fault Tunnel Design, but application range
Scope shown in more than Fig. 1 to Fig. 5 suitable for attached drawing can be applicable to the weak intersection of country rock 101.The design is without tunnel
Road digs, and connector main reinforcement is consistent with two lining arrangements of reinforcement, removes the individually designed trouble individually constructed from.Connector is to waterproof measure requirement
It is low, there is prefabricated installation, quick dismounting and easily repair characteristic, considerably increase the practicability and applicability of connector.
The present embodiment additionally provides a kind of tunnel, prefabricated soft including at least one above-mentioned across active breaking belt tunnel-liner
Property joint structure 100.
The prefabricated flexible joint structure 100 of across active breaking belt tunnel-liner and the work in tunnel that the embodiment of the present invention provides
Make principle and have the beneficial effect that：
What the prefabricated flexible joint structure 100 of across active breaking belt tunnel-liner provided included setting gradually from outside to inside encloses
Rock 101, Tunnel 103, splash guard 105, two serve as a contrast section 107.The first segment two that two lining sections 107 include being oppositely arranged serves as a contrast
109th, the lining of second section two 111 and the flexible joint 113 for connecting the lining of first segment two 109 and the lining of second section two 111,
Flexible joint 113 is used to undertake the destruction of differential displacement, alternate displacement and macroseism energy between stratum and structure under macroseism, in mistake
Under dynamic and strong motion, the lining of first segment two 109 and the connecting pin of the lining of second section two 111 and flexible joint 113 can be longitudinal
It freely stretches and circumferential deformation.
It so designs, actively guides differential displacement, alternate displacement and macroseism energy between stratum and structure to tunnel section
Intersegmental 113 sections of specific compliance connector.Ensure tunnel lining structure have stronger shock resistance, flexible joint 113 undertake the changing of the relative positions and
Strong motion destroys, and is the peace of personnel's plant so as to reach the shock resisting purpose of Cross-fault leveling and large-scale activity fracture belt tunnel
Reparation of speedily carrying out rescue work after complete and shake provides safeguard.
Flexible joint 113 is set between 101 rigidity change dramatically region liner structure segmentation of country rock, segment and is added embedding
Vibration-absorptive material is stitched, achievees the effect that error resilience shock absorbing.The design based on by previous common " passive " it is " anti-" shake, " subtracting " shake thinking
To " active " by the thinking of structure earthquake " guiding " to specific compliance region, tunnel is made integrally to have and adapts to Cross-fault leveling large deformation
Ability and avoid under the changing of the relative positions and macroseism liner structure generate it is serious destroy, achieve the purpose that ensure liner structure safety.
In conclusion under the coupling of strong motion and fault movement large deformation, Cross-fault leveling and large-scale activity fracture belt
Tunnel Zhong Ge tunnels segment strain gaining rate will be substantially reduced；Engineering institute is added in the case where ensureing the shearing resistance tensile capacity of sufficient intensity
The integrally-built deformation ductility in the case where 101 rigidity of country rock is mutated environment；Simultaneously by " anti-" shake of previous common " passive ", " subtracting "
Shake thinking is converted to " active " by structure earthquake " guiding " to specific compliance region, by Earthquake Inertia Force Acting and 101 changing of the relative positions of country rock mistake
The reasons such as steady draw the earthquakes performances such as the relative settlement that tunnel structure generates and crack to combine in 113 position of flexible joint；Connector makes
Cross-fault leveling large deformation is adapted to with liner structure segmentation, and accumulation greater stiffness structure in tunnel segment can be released effectively
Internal force and strain；Connector simplicity is easy to remove after constructing operation and calamity using light foam concrete precast block rebuilds.Originally connect
Head design reaches the shock resisting purpose in Cross-fault leveling tunnel, for after normal traffic maintenance, the safety of personnel's plant and shake
Reparation of speedily carrying out rescue work provides safeguard.
The tunnel of offer, including at least one above-mentioned across active breaking belt prefabricated flexible joint structure 100 of tunnel-liner.
This tunnel safety is reliable, highly practical.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of across active breaking belt prefabricated flexible joint structure of tunnel-liner, which is characterized in that including setting successively from outside to inside
Tunnel, splash guard, two lining sections and the flexible joint put；
The first segment two that the two linings section includes being oppositely arranged serves as a contrast, second section two serves as a contrast, and the flexible joint is used to connect institute
It states the lining of first segment two to serve as a contrast with the second section two, the flexible joint is poor between stratum and structure under strong motion for undertaking
Dystopy is moved, the destruction of alternate displacement and macroseism energy, and under the changing of the relative positions and strong motion, the first segment two is lined with and described second
Segment two serves as a contrast and the connecting pin of the flexible joint longitudinally can freely stretch and circumferential deformation.
2. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 1, which is characterized in that described
The lining of first segment two has first segment main reinforcement, and the lining of second section two has second segment main reinforcement, the first segment main reinforcement and institute
Second segment main reinforcement overlap joint is stated to set；
The flexible joint includes at least one light foam concrete block and at least two longitudinally disposed steel bushings, described
Steel bushing is arranged in the light foam concrete block, and the both ends of the steel bushing, which are respectively protruding into, is anchored in the first segment
In two linings and the second section two serve as a contrast, and the steel bushing has preformed hole, the first segment main reinforcement and the second segment master
Muscle is used to stretch into the preformed hole of the steel bushing of correspondence position, under the changing of the relative positions and strong motion, the first segment master
Muscle and the second segment main reinforcement can freely stretch circumferential deformation longitudinal direction in the steel bushing.
3. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 2, which is characterized in that described
The total length of flexible joint is 35~45cm, preferred length 40cm；
It is further preferred that the steel bushing, which stretches into, is anchored in the lining of first segment two and the length in the second section two lining
Degree is at least 5cm respectively.
4. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 2, which is characterized in that described
First segment main reinforcement and the HRB400 grade reinforcing bars that the second segment main reinforcement is that diameter specifications are φ 20, the first segment main reinforcement and institute
The least anchorage length for stating second segment main reinforcement is 77.3~110.4cm.
5. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 2, which is characterized in that described
It is C35 that first segment two, which is served as a contrast with the concrete strength of the second section two lining,.
6. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 2, which is characterized in that described
A diameter of 40~the φ of φ 50 of steel bushing, it is preferable that a diameter of φ 45, the both ends of the steel bushing are consolidated by way of anchoring respectively
In the first segment two lining is served as a contrast with the second section two.
7. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 2, which is characterized in that described
Light foam concrete block includes 7~9 pieces of light foam concrete flat moulded prefabricated blocks in arcuation, and 7~9 pieces of lightweights bubbles
It is annular that foam concrete flat moulded prefabricated block forms tunnel.
8. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to claim 7, which is characterized in that 7~9
Multiple wedge shaped jacking blocks that bind, the jacking block point that binds are provided with described in block at the top of light foam concrete flat moulded prefabricated block
Block is installed on the cricoid light foam concrete block.
9. the prefabricated flexible joint structure of across active breaking belt tunnel-liner according to any one of claim 1 to 8, special
Sign is there is I-steel in the preliminary bracing, and the position of the I-steel is corresponding with the position of the flexible joint.
10. a kind of tunnel just build structure, which is characterized in that including any one of at least one claim 1 to 9 across work
The prefabricated flexible joint structure of dynamic fracture belt tunnel-liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108593892A (en) * | 2018-06-22 | 2018-09-28 | 西南交通大学 | Tunnel-liner model, the experimental rig and experimental method for simulating tunnel longitudinal effect |
| CN108915723A (en) * | 2018-07-27 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of shield tunnel chip architecture for passing through vertical fault active fault |
| CN110005438A (en) * | 2019-04-02 | 2019-07-12 | 中交铁道设计研究总院有限公司 | A kind of design of large deformation tunnel cast-in-place structural and construction method for passing through active fault |
| CN110030018A (en) * | 2019-04-30 | 2019-07-19 | 中铁第四勘察设计院集团有限公司 | A kind of Support System in Soft Rock Tunnels suspension device |
| CN110792452A (en) * | 2019-11-15 | 2020-02-14 | 伍永伶 | Tunnel combination supporting construction suitable for aeolian sand stratum |
| CN111287756A (en) * | 2020-03-05 | 2020-06-16 | 西南交通大学 | Anti-dislocation tunnel structure and construction method thereof |
| CN111706354A (en) * | 2020-07-06 | 2020-09-25 | 四川农业大学 | Frozen soil layer fracture zone tunnel shock-absorbing structure |
| CN112031815A (en) * | 2020-09-22 | 2020-12-04 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112267901A (en) * | 2020-10-23 | 2021-01-26 | 西南交通大学 | Tunnel structure penetrating through creeping active fault |
| CN113006143A (en) * | 2021-02-09 | 2021-06-22 | 重庆交通大学 | Suspension tunnel tube joint structure |
| CN113323670A (en) * | 2021-05-28 | 2021-08-31 | 广州大学 | Immersed tube tunnel suitable for crossing geological fault and construction process thereof |
| CN113605926A (en) * | 2021-08-26 | 2021-11-05 | 西南交通大学 | Cross-fault tunnel segment lining passive vector type flexible joint structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108593892A (en) * | 2018-06-22 | 2018-09-28 | 西南交通大学 | Tunnel-liner model, the experimental rig and experimental method for simulating tunnel longitudinal effect |
| CN108915723A (en) * | 2018-07-27 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of shield tunnel chip architecture for passing through vertical fault active fault |
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| CN110005438A (en) * | 2019-04-02 | 2019-07-12 | 中交铁道设计研究总院有限公司 | A kind of design of large deformation tunnel cast-in-place structural and construction method for passing through active fault |
| CN110030018A (en) * | 2019-04-30 | 2019-07-19 | 中铁第四勘察设计院集团有限公司 | A kind of Support System in Soft Rock Tunnels suspension device |
| CN110792452A (en) * | 2019-11-15 | 2020-02-14 | 伍永伶 | Tunnel combination supporting construction suitable for aeolian sand stratum |
| CN110792452B (en) * | 2019-11-15 | 2021-08-06 | 伍永伶 | Tunnel combination supporting construction suitable for aeolian sand stratum |
| CN111287756A (en) * | 2020-03-05 | 2020-06-16 | 西南交通大学 | Anti-dislocation tunnel structure and construction method thereof |
| CN111706354A (en) * | 2020-07-06 | 2020-09-25 | 四川农业大学 | Frozen soil layer fracture zone tunnel shock-absorbing structure |
| CN112031815B (en) * | 2020-09-22 | 2022-04-26 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112031815A (en) * | 2020-09-22 | 2020-12-04 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112267901A (en) * | 2020-10-23 | 2021-01-26 | 西南交通大学 | Tunnel structure penetrating through creeping active fault |
| CN112267901B (en) * | 2020-10-23 | 2022-03-08 | 西南交通大学 | Tunnel structure penetrating through creeping active fault |
| CN113006143B (en) * | 2021-02-09 | 2022-10-18 | 重庆交通大学 | Suspension tunnel tube joint structure |
| CN113006143A (en) * | 2021-02-09 | 2021-06-22 | 重庆交通大学 | Suspension tunnel tube joint structure |
| CN113323670A (en) * | 2021-05-28 | 2021-08-31 | 广州大学 | Immersed tube tunnel suitable for crossing geological fault and construction process thereof |
| CN113605926A (en) * | 2021-08-26 | 2021-11-05 | 西南交通大学 | Cross-fault tunnel segment lining passive vector type flexible joint structure |
| CN113605926B (en) * | 2021-08-26 | 2022-06-21 | 西南交通大学 | Cross-fault tunnel segment lining passive vector type flexible joint structure |
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