CN109252874A - A kind of Tunnel Base and its construction - Google Patents
A kind of Tunnel Base and its construction Download PDFInfo
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- CN109252874A CN109252874A CN201811357237.XA CN201811357237A CN109252874A CN 109252874 A CN109252874 A CN 109252874A CN 201811357237 A CN201811357237 A CN 201811357237A CN 109252874 A CN109252874 A CN 109252874A
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- prefabricated section
- inverted arch
- tunnel
- prefabricated
- tunnel base
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- 238000010276 construction Methods 0.000 title claims description 32
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention provides a kind of Tunnel Base, the Tunnel Base includes: the inverted arch prefabricated section that tunnel bottom is arranged in；It is mounted on the prefabricated filled layer on inverted arch prefabricated section top, the prefabricated filled layer includes two F type prefabricated sections for connecting and be in mirror-image arrangement with the bottom of tunnel two sides arch wall respectively, and the gate prefabricated section being fixedly connected between two F type prefabricated sections；Wherein, the prefabricated filled layer is adapted to installation with the inverted arch prefabricated section, and the inverted arch prefabricated section and the prefabricated filled layer are longitudinally continuous setting along tunnel bottom and form Tunnel Base.
Description
Technical field
The present invention relates to Tunnel Engineering construction technique fields, particularly relate to a kind of Tunnel Base.The invention further relates to
A kind of construction of Tunnel Base.
Background technique
In recent years, with the development of China Railway, Concerning Railway Tunnel Construction engineering is also become more and more important, investment fortune
The Tunnel Engineering of battalion is also more and more.
It is formed currently, Foundation Base in Railway Tunnel generallys use concreting.In the operation phase, the common disease of Tunnel Base has
Layering cracking, pucking, sink, rises soil, the diseases such as lining cracking.These are all serious to influence the safety in tunnel and normal
Operation, reduces liner structure to the bearing capacity of country rock.Meanwhile shop fixtures and inverted arch are damaged, lead to surface deformation, thus seriously
Jeopardize traffic safety.
Tunnel defect is very harmful, once discovery disease needs to be administered at once.It is existing in tunnel defect governance process
Tunnel Base change the long construction period for filling out and changeing inverted arch, construction efficiency is low.In addition, to the serious interference of tunnel surrounding, no
The bearing capacity for the Tunnel Base that only seriously affected that treated, and working security is poor, the construction of Tunnel Base and is supported
It protects at high cost.
Summary of the invention
For at least some technical problems as described above, the present invention is directed to propose a kind of Tunnel Base.The Tunnel Base
It being formed using prefabricated component assembly connection, prefabricated component is equipped with specific structure, and installation is easy to connect, and it is easy for construction, and effect of constructing
Rate is high.The support construction of Tunnel Base can guarantee that the Tunnel Base has excellent support capability, can effectively reduce tunnel disease
Evil, and the maintenance of Tunnel Base is convenient.The Tunnel Base also has good drainage performance and sealing waterproof performance.This
Outside, in building course, which significantly reduces construction pollution, substantially increases construction efficiency and quality safety level,
And effectively save resource, reduces construction and maintenance cost.
The present invention also provides a kind of constructions of Tunnel Base as described above.
For this purpose, according to the first aspect of the invention, providing a kind of Tunnel Base, the Tunnel Base includes: that setting exists
The inverted arch prefabricated section of tunnel bottom；It is connected to the prefabricated filled layer on inverted arch prefabricated section top, the prefabricated filled layer includes
Two connect with the bottom of tunnel two sides arch wall respectively and are in the F type prefabricated section of mirror-image arrangement, and are fixedly connected on two F
Gate prefabricated section between type prefabricated section；Wherein, the prefabricated filled layer is adapted to installation with the inverted arch prefabricated section, and described faces upward
Arch prefabricated section and the prefabricated filled layer are longitudinally continuous setting along tunnel bottom and form Tunnel Base.
In a preferred embodiment, several mounting grooves longitudinally extended are equipped in the upper end of the inverted arch prefabricated section,
And two sides are equipped with vertically extending connecting lateral plate, the end of the connecting lateral plate is equipped with the protrusion that longitudinal gap opens distribution.
In a preferred embodiment, the F type prefabricated section includes body part, and vertical with the body part
The first connecting plate and the second connecting plate for connecting and being separated from each other, the body part be equipped with longitudinally extend and can with it is described
The groove of protrusion adaptation installation.
In a preferred embodiment, the gate prefabricated section includes entity plate and is vertically connected on the entity plate two
The connecting lateral plate at end, first connecting plate, the second connecting plate and the connecting lateral plate adaptation of the F type prefabricated section are installed to
In the mounting groove, so that the prefabricated filled layer is installed on the inverted arch prefabricated section.
In a preferred embodiment, the tongue-and-groove being laterally extended is equipped on the longitudinal terminal surface of the inverted arch prefabricated section,
The longitudinally adjacent inverted arch prefabricated section forms connection by the tongue-and-groove.
In a preferred embodiment, the longitudinally extended along tunnel is equipped at the middle part of inverted arch prefabricated section upper end
One gutter, tunnel a sidewall bottom and the second row longitudinally extended along tunnel is equipped on the F type prefabricated section
Ditch.
In a preferred embodiment, the middle part of the inverted arch prefabricated section is equipped with several vertically extending drainpipes,
The lower part of the inverted arch prefabricated section and longitudinal water-permeable pipe, first gutter are arranged right below in first gutter
It is connected to by the drainpipe with longitudinal water-permeable pipe.
In a preferred embodiment, it is equipped in the junction of the prefabricated filled layer and the inverted arch prefabricated section anti-
Shake bed course, and is equipped with the waterstop of water-swellable in the inside of the inverted arch prefabricated section.
In a preferred embodiment, inspection shaft is equipped on the gate prefabricated section for be longitudinally continuous connection, it is described
Inspection shaft is along tunnel longitudinally evenly-spaced distribution.
According to the second aspect of the invention, a kind of construction of Tunnel Base as described above is provided, including following
Step:
Tunnel bottom is excavated and clears up, and bottom excavation face does the flat processing of essence, and cast-in-place screed-coat；
After the concrete of the screed-coat reaches respective strengths, the inverted arch prefabricated section is placed in lifting, and assembly places three
After inverted arch prefabricated section described in ring, the gap casting cement grouting material between the inverted arch prefabricated section and the screed-coat is tamped；
It is laid with the antivibration bed course on the joint face with the prefabricated filled layer of the inverted arch prefabricated section, first lifting is put
The F type prefabricated section of two sides is set, then lifts and places the gate prefabricated section, so that the prefabricated filled layer adaptation is installed to
On the inverted arch prefabricated section, and it is fastenedly connected；
Above steps is repeated, is longitudinally continuous construction along tunnel until Tunnel Base is laid with completion；
Place prefabricated the first gutter and the second gutter.
Detailed description of the invention
The present invention will be described below with reference to accompanying drawings.
Fig. 1 shows the schematic diagram of the transversal cross-section of Tunnel Base according to the present invention.
Fig. 2 shows the structure of inverted arch prefabricated section shown in Fig. 1.
Fig. 3 shows that inverted arch prefabricated section is longitudinally continuous the top view of mounting structure.
Fig. 4 and Fig. 5 shows the structure of the F type prefabricated section in Tunnel Base shown in Fig. 1.
Fig. 6 and Fig. 7 shows the structure of the gate prefabricated section in Tunnel Base shown in Fig. 1.
Fig. 8 shows that prefabricated filled layer is longitudinally continuous the top view of mounting structure.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principle of the present invention, and not by real
Border ratio is drawn.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
It should be noted that be " transverse direction " by the horizontal line direction definition in the cross section of Tunnel Base in this application,
And the extending direction in tunnel is defined as " longitudinal direction ", it will be " vertical " with the direction definition of horizontal plane.And by the application
Used in Directional terms or the similar terms such as determiner " upper end ", " lower end " be for the attached drawing of institute's reference, it
Be not used to limit the absolute position of involved components, but can change as the case may be.
Fig. 1 shows the schematic diagram of the transversal cross-section of Tunnel Base 100 according to the present invention.As shown in Figure 1, Tunnel Base
100 are mounted on the bottom in tunnel 200.According to the present invention, Tunnel Base 100 is prefabricated component.Tunnel Base 100 includes being arranged in tunnel
The inverted arch prefabricated section 110 of 210 bottom of road arch wall, and the prefabricated filled layer 120 that connection is mounted on inverted arch prefabricated section 110.
Prefabricated filled layer 120 includes two F type prefabricated sections 130 connecting respectively with the bottom of the tunnel arch wall 210 of tunnel two sides, with
And it is fixedly connected on the gate prefabricated section 140 between two F type prefabricated sections 130.Two F type prefabricated sections 130 and gate prefabricated section
140 be fixedly connected after be adapted to and be installed on inverted arch prefabricated section 130.Prefabricated filled layer 120 is adapted to installation with inverted arch prefabricated section 110,
And setting is longitudinally continuous along tunnel bottom and forms Tunnel Base 100.
In one embodiment, tunnel arch wall 210 is made of C30 armored concrete.Tunnel arch wall 210 can have
Effect guarantees the support protective performance in tunnel.
Fig. 2 shows the structure of inverted arch prefabricated section 110.As shown in Fig. 2, the bottom of inverted arch prefabricated section 110 is configured to circular arc
Shape.Several mounting grooves 111 longitudinally extended are equipped in the upper end of inverted arch prefabricated section 110, mounting groove 111 is horizontally according to certain
Distance interval, which opens up, sets.Meanwhile vertically extending connecting lateral plate 112, connecting lateral plate are equipped in the two sides of inverted arch prefabricated section 110
112 end is equipped with the protrusion 113 that longitudinal gap opens distribution.Mounting groove 111 and protrusion 113 are used for the prefabricated filled layer of location and installation
120.In addition, being equipped with tongue-and-groove 114 on the longitudinal terminal surface of inverted arch prefabricated section 110, tongue-and-groove 114 is extended transversely.Adjacent inverted arch
Prefabricated section 110 is connected with each other by tongue-and-groove 114.
Fig. 3 shows the top view of the inverted arch prefabricated section 110 after being laid with.As shown in figure 3, inverted arch prefabricated section 110 is equipped with
Drainpipe 115.The middle part of inverted arch prefabricated section 110 is arranged in drainpipe 115, and vertically extending.Drainpipe 115 is equal in the longitudinal direction
Even distribution spaced apart.In one embodiment, the longitudinal pitch of drainpipe 115 is set as 25m.The purposes of drainpipe 115 will be
Hereafter it is introduced.
In addition, inverted arch prefabricated section 110 is additionally provided with oblique bolt hole 117, it is adjacent to connect that oblique bolt is installed in oblique bolt hole
Inverted arch prefabricated section 110.In one embodiment, high-strength bolt of the oblique bolt using M24, strength grade 10.9S, and tiltedly
M24 locking washer is used between bolt.Longitudinally adjacent inverted arch prefabricated section 110 connects joint bolt using tongue-and-groove as a result,
The mode of connection is connected.And hole for hoist 118 used for positioning is equipped on inverted arch prefabricated section 110.In addition, in order to guarantee inverted arch
Sealing waterproof performance between prefabricated section 110 is equipped with the waterstop 116 of water-swellable in the inside of inverted arch prefabricated section 110.Together
When, antivibration bed course is equipped in the junction of inverted arch prefabricated section 110.Antivibration bed course can also adjust between inverted arch prefabricated section 110
Gap, so that the splicing accuracy between adjacent inverted arch prefabricated section 110 is improved, to guarantee the performance of Tunnel Base 100.
Fig. 4 and Fig. 5 shows the structure of F type prefabricated section 130.As shown in Figure 4 and Figure 5, F type prefabricated section 130 includes ontology
Part 131, and first connecting plate 132 of one end of body part 131 is set and the middle part of body part 131 is set
Second connecting plate 133.First connecting plate 132 and the second connecting plate 133 are vertical with body part 131, and are arranged in body part
Divide on 131 end face.Longitudinal prolong is equipped on the end face of one end for being not provided with the first connecting plate 132 of body part 131
The groove 135 stretched.Groove 135 is used to be adapted to installation with the protrusion 113 on inverted arch prefabricated section 110.In the embodiment shown in fig. 5,
Connecting hole 134 there are four being set on the first connecting plate 132.Meanwhile oblique bolt hole 136, oblique bolt are equipped on body part 131
Hole 136 is for installing oblique bolt to connect longitudinally adjacent F type prefabricated section 130.
Fig. 6 and Fig. 7 shows the structure of gate prefabricated section 140.As shown in Figure 6 and Figure 7, gate prefabricated section 140 includes structure
The entity plate 141 of rectangular plate-like is caused, and is connected to the connecting lateral plate 142 at 141 both ends of entity plate.Connecting lateral plate 142 is arranged
On an end face of entity plate 141, and it is vertical with entity plate 141.It is imported in embodiment illustrated in fig. 7 in Fig. 6, in connecting lateral plate
Bolt hole 143 there are four being set on 142.Connecting hole 143 can be with the connecting hole on the first connecting plate 132 of F type prefabricated section 130
134 is corresponding, to install connection bolt, to being fixed together F type prefabricated section 130 and gate prefabricated section 140 with shape
At prefabricated filled layer 120.Meanwhile oblique bolt hole 144 also is provided on entity plate 141, oblique bolt hole 144 is for installing oblique bolt
To connect longitudinally adjacent gate prefabricated section 140.
In the present embodiment, in the connecting lateral plate of the first connecting plate 132 and gate prefabricated section 140 of F type prefabricated section 130
Antivibration bed course is equipped between 142.In one embodiment, antivibration bed course uses EPDM elastic packing rubber pad.Antivibration pad
Layer can guarantee the sealing waterproof performance between F type prefabricated section 130 and gate prefabricated section 140, and can adjust F type prefabricated section
Gap between 130 and gate prefabricated section 140 improves the splicing accuracy between F type prefabricated section 130 and gate prefabricated section 140,
Further ensure the performance of Tunnel Base 100.
When lifting connects prefabricated filled layer 120 with inverted arch prefabricated section 110, F type prefabricated section 130 and gate prefabricated section 140 are logical
It crosses connection bolt and is fixedly connected to form prefabricated filled layer 120.Protrusion 113 on the connecting lateral plate 112 of inverted arch prefabricated section 110 with it is recessed
Slot 135 adaptation installation, and the first connecting portion 131 of F type prefabricated section 130, second connecting portion 133 and gate prefabricated section 140
The adaptation of connecting lateral plate 142 is installed in the mounting groove 111 of inverted arch prefabricated section 110.Prefabricated filled layer 120 and inverted arch are completed as a result,
The installation of prefabricated section 110 connects, to form Tunnel Base 100.In one embodiment, Tunnel Base 100 passes through pre-buried steel
Muscle hole is connect with the bottom of tunnel arch wall 210.This structure of Tunnel Base 100 makes it have lifting construction convenience, construction effect
The advantages that rate is high, security performance is high, easy to maintain.
Fig. 8 shows that prefabricated filled layer 120 is longitudinally continuous the top view of mounting structure.As shown in figure 8, F type prefabricated section 130
Body part 131 be equipped with for lifting operation hole for hoist 137.And it also is provided on the entity plate 141 of gate prefabricated section 140
Hole for hoist 147 for lifting operation.
In one embodiment, the entity plate 141 of gate prefabricated section 140 continuously coupled in the longitudinal direction is equipped with inspection shaft
145.As shown in figure 8, the middle part of gate prefabricated section 140 is arranged in inspection shaft 145, and along tunnel longitudinally evenly-spaced setting.
In one embodiment, spacing is set as 25m to inspection shaft 145 in the longitudinal direction.Inspection shaft 145 is set as rectangular opening, is used for inspection door
The intracorporal situation of the chamber of type prefabricated section 140, with the situation inside inspection and maintenance Tunnel Base 100.
In one embodiment, inverted arch prefabricated section 110, F type prefabricated section 130 and gate prefabricated section 140 are all made of C40 steel
Reinforced concrete material is made.As a result, inverted arch prefabricated section 110 and prefabricated filled layer 120 have good support protective performance,
The support performance for effectively increasing Tunnel Base 100 improves the security performance of Tunnel Base.
According to the present invention, Tunnel Base 100 is additionally provided with the first gutter 150 and the second gutter longitudinally extended along tunnel
160.As shown in Figure 1, the middle part of 110 upper end of inverted arch prefabricated section is arranged in the first gutter 150.The setting of second gutter 160 exists
The bottom of one side wall in tunnel and the upper end for being in F type prefabricated section 130.In one embodiment, the first gutter 150 and
Two gutters 160 are equipped with cover board, and are prefabricated component.Preferably, the first gutter 150, the second gutter 160 and cover board
Fiber glass reinforcement is all made of to be made.
In addition, being equipped with longitudinal water-permeable pipe for draining in the lower part of inverted arch prefabricated section 110.Longitudinal water-permeable pipe is in first
The underface in gutter 150, and it is parallel with the first gutter 150 along tunnel longitudinally extension.In one embodiment, Zong Xiangtou
Water pipe uses φ 300HDPE water-permeable pipe.Preferably, filter layer 170 is surrounded by longitudinal water-permeable pipe.As shown in Figure 1, filter layer
170 cross-sectional configuration is at trapezoidal.In one embodiment, filter layer 170 is equipped with concrete bed, and is in inverted arch prefabricated section
Rubble filter layer between 110 and longitudinal water-permeable pipe.Filter layer 170 can effectively filter the impurity in tunnel rock.In this reality
It applies in example, the first gutter 150 is connected to by drainpipe 115 with longitudinal water-permeable pipe.Ponding in first gutter 150 can flow
Longitudinal water-permeable pipe is flowed by drainpipe 115, and passes through longitudinal water-permeable pipe discharge.Influence of the ponding to tunnel is reduced as a result, is subtracted
The generation for having lacked 100 disease of Tunnel Base improves the security performance of Tunnel Base 100.
According to the present invention, the Tunnel Base 100 being connect by inverted arch prefabricated section 110 with prefabricated 120 assembled of filled layer with enclose
Rock contact uses the smart stone concrete screed-coat combination grouting mode of 5-10cm.In one embodiment, cast-in-place screed-coat uses
C20 concrete material is made.
The construction of brief description Tunnel Base 100 according to the present invention.
Firstly, excavating and clearing up tunnel bottom, and the excavation face of tunnel bottom does the flat processing of essence, and cast-in-place cement mortar
Screed-coat.Meanwhile in the embedded longitudinal water-permeable pipe of tunnel bottom.After the concrete of screed-coat reaches respective strengths, lifting is placed
After tricyclic inverted arch prefabricated section 110 is placed in assembly, the gap between inverted arch prefabricated section and screed-coat is poured for inverted arch prefabricated section 110
Cement grout material tamps.Later, the lifting for carrying out the prefabricated filled layer 120 of every ring is placed.The installation process of prefabricated filled layer 120 is such as
Under, antivibration bed course is first laid on the joint face of inverted arch prefabricated section 110, then, the F type prefabricated section of tunnel two sides is placed in lifting
130, then lift and place gate prefabricated section 140, connection is mounted between the F type prefabricated section 130 of two sides, and is fastenedly connected.
In this installation process of prefabricated filled layer 120, F type prefabricated section 130 passes through the pre-buried steel on corresponding inverted arch prefabricated section 110
Muscle hole and mounting groove 111 carry out positioning lifting.And before F type prefabricated section 130 and gate prefabricated section 140 lift, it is connected accordingly
Connection installation antivibration bed course at position.In a longitudinal direction, between adjacent F type prefabricated section 130 and adjacent gate is prefabricated
It is formed a fixed connection by connecting bolt between block 140.The prefabricated adaptation of filled layer 120 of tricyclic is installed to as a result, and has been pacified
On the tricyclic inverted arch prefabricated section 110 installed, to complete the laying construction of tricyclic Tunnel Base.Later, above steps is repeated,
It is that a circulation is longitudinally continuous construction until the laying of Tunnel Base 100 is completed along tunnel with tricyclic.Finally, placing prefabricated first
Gutter 150 and the second gutter 160.
According to the present invention, in the lifting placement process of tricyclic Tunnel Base.To inverted arch prefabricated section 110 and prefabricated filled layer
After the completion of 120 assembly, need first to check the splicing accuracy of inverted arch prefabricated section 110 Yu prefabricated 120 structure of filled layer.If meeting installation
It is required that then with pneumatic impact spanner is turned round surely by all connection bolts of preset torque fastening, first screwing torque is the 50% of construction torque, to protect
Card inverted arch prefabricated section 110 and tongue-and-groove are closely joined together.In one embodiment, the construction torsional moment of each nut is not small
In 660Nm.When with impact wrench, twists and pull the time and continue 2s-5s.Later, tunnel is successively laid on longitudinal direction in the above manner
Road substrate.
During the assembly of inverted arch prefabricated section 110 and prefabricated filled layer 120, the top surface of gate prefabricated section 140 is led with flat
The vertical axis of liner structure horizontal axis distance and gate prefabricated section 140 and flat guide bush block structural vertical axial line distance are equal
In error range in ± 10mm, the smooth connection between inverted arch prefabricated section 110 and prefabricated filled layer 120 ensure that.It is facing upward
Encircle prefabricated section 110 and prefabricated filled layer 120 longitudinally, laterally and vertically junction is respectively provided with antivibration bed course.Inverted arch is pre- as a result,
The assembled error occurred between clamp dog 110 and prefabricated filled layer 120 can adjust gap by antivibration bed course, to realize that inverted arch is pre-
The control of splicing accuracy between clamp dog 110 and prefabricated filled layer 120, meanwhile, realize inverted arch prefabricated section 110 and prefabricated filled layer
The fitting of 120 pairs of sweeps.In the present embodiment, when antivibration bed course is installed, it should be ensured that antivibration bed course and respective planes
Angle is unanimously to prevent inverted arch prefabricated section 110 and prefabricated filled layer 120 to be uneven.
According to the present invention, in the work progress of Tunnel Base 100, in inverted arch prefabricated section 110 and prefabricated filled layer 120
Corresponding position is pre-buried for measuring the sensor of different data, to monitor 120 structure of inverted arch prefabricated section 110 and prefabricated filled layer
Stabilization, meanwhile, for examining the Tunnel Base 100 under practice of construction load real works situations such as (including) transporting, lift
Bottom structure bearing capacity.The situation of Tunnel Base 100 is analyzed by the data that sensor detects, and takes corresponding answer
To measure, so as to which the disease of Tunnel Base is effectively reduced.
Tunnel Base 100 according to the present invention, the Tunnel Base 100 is using prefabricated component inverted arch prefabricated section 110 and prefabricated fills out
It fills 120 assembly connection of layer to form, inverted arch prefabricated section 110 and prefabricated filled layer 120 have compatible connection structure, and installation connects
It connects conveniently, it is easy for construction, and construction efficiency is high.It is good that the support construction of Tunnel Base 100 can guarantee that the Tunnel Base 100 has
Good support performance can effectively reduce tunnel defect, and the maintenance of Tunnel Base 100 is convenient.The Tunnel Base also has
There are good drainage performance and sealing waterproof performance.In addition, in work progress, Tunnel Base 100 significantly reduce construction pollution,
It substantially increases construction efficiency and quality safety is horizontal, and effectively save resource, reduce construction and maintenance cost.
Finally it should be noted that the foregoing is merely the preferred embodiments of the invention, do not constitute to the present invention
Any restrictions.Although referring to foregoing embodiments, invention is explained in detail, for the technology of this field
It for personnel, can still modify to technical solution documented by previous embodiment, or to part of technical characteristic
It is equivalently replaced.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all wrap
Containing within protection scope of the present invention.
Claims (10)
1. a kind of Tunnel Base (100), which is characterized in that the Tunnel Base includes:
The inverted arch prefabricated section (110) of tunnel bottom is set；
Be connected to the prefabricated filled layer (120) on inverted arch prefabricated section top, the prefabricated filled layer include two respectively with tunnel
The bottom of road two sides arch wall connects and is in the F type prefabricated section (130) of mirror-image arrangement, and to be fixedly connected on two F types pre-
Gate prefabricated section (140) between clamp dog；
Wherein, the prefabricated filled layer is adapted to installation with the inverted arch prefabricated section, and the inverted arch prefabricated section and described prefabricated fills out
It fills layer and is longitudinally continuous setting along tunnel bottom and form Tunnel Base.
2. Tunnel Base according to claim 1, which is characterized in that be equipped in the upper end of the inverted arch prefabricated section several vertical
It is equipped with vertically extending connecting lateral plate (112) to the mounting groove (111) of extension and two sides, the end of the connecting lateral plate is set
There is longitudinal gap to open the protrusion (113) of distribution.
3. Tunnel Base according to claim 2, which is characterized in that the F type prefabricated section includes body part (131),
And the first connecting plate (132) and the second connecting plate (133) for connecting and being separated from each other vertical with the body part, it is described
Body part is equipped with groove (135) longitudinally extend and that installation can be adapted to the protrusion.
4. Tunnel Base according to claim 3, which is characterized in that the gate prefabricated section include entity plate (141) and
It is vertically connected on the connecting lateral plate (142) of the ontology board ends, first connecting plate of the F type prefabricated section, second connect
Fishplate bar and connecting lateral plate adaptation are installed in the mounting groove, so that it is pre- that the prefabricated filled layer is installed to the inverted arch
On clamp dog.
5. Tunnel Base according to any one of claims 1 to 4, which is characterized in that in the vertical of the inverted arch prefabricated section
The tongue-and-groove (114) being laterally extended is equipped with to end face, the longitudinally adjacent inverted arch prefabricated section forms connection by the tongue-and-groove.
6. Tunnel Base according to any one of claims 1 to 4, which is characterized in that in inverted arch prefabricated section upper end
Middle part be equipped with the first gutter (150) for longitudinally extending along tunnel, tunnel a sidewall bottom and in the F type it is pre-
Clamp dog is equipped with the second gutter (160) longitudinally extended along tunnel.
7. Tunnel Base according to claim 6, which is characterized in that the middle part of the inverted arch prefabricated section is equipped with several vertical
The drainpipe (115) of extension, the inverted arch prefabricated section lower part and be arranged right below longitudinal direction in first gutter
Water-permeable pipe, first gutter are connected to by the drainpipe with longitudinal water-permeable pipe.
8. Tunnel Base according to any one of claims 1 to 4, which is characterized in that in the prefabricated filled layer and institute
The junction for stating inverted arch prefabricated section is equipped with antivibration bed course, and is equipped with the sealing of water-swellable in the inside of the inverted arch prefabricated section
Band (116).
9. Tunnel Base according to any one of claims 1 to 4, which is characterized in that be longitudinally continuous described in connection
Gate prefabricated section is equipped with inspection shaft (145), and the inspection shaft is along tunnel longitudinally evenly-spaced distribution.
10. one kind according to claim 1 to the construction of Tunnel Base described in any one of 9, which is characterized in that including with
Lower step:
Tunnel bottom is excavated and clears up, and bottom excavation face does the flat processing of essence, and cast-in-place screed-coat；
It after the concrete of the screed-coat reaches respective strengths, lifts and places the inverted arch prefabricated section, described in assembled complete tricyclic
After inverted arch prefabricated section, the gap casting cement grouting material between the inverted arch prefabricated section and the screed-coat is tamped；
It is laid with the antivibration bed course on the joint face with the prefabricated filled layer of the inverted arch prefabricated section, first lifting places two
The F type prefabricated section of side, then lift and place the gate prefabricated section, to the prefabricated filled layer adaptation is installed to described
On inverted arch prefabricated section, and it is fastenedly connected；
Above steps is repeated, is longitudinally continuous construction along tunnel until Tunnel Base is laid with completion；
Place prefabricated the first gutter and the second gutter.
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| CN201811357237.XA CN109252874B (en) | 2018-11-15 | 2018-11-15 | Tunnel substrate and construction method thereof |
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| CN201811357237.XA CN109252874B (en) | 2018-11-15 | 2018-11-15 | Tunnel substrate and construction method thereof |
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| CN109826646A (en) * | 2019-03-06 | 2019-05-31 | 中铁十一局集团第五工程有限公司 | One-time formed tunnel segment assembly |
| CN110344442A (en) * | 2019-07-31 | 2019-10-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of prefabricated assembled railway open cut tunnel and its construction method |
| CN110821514A (en) * | 2019-09-30 | 2020-02-21 | 中铁隧道局集团建设有限公司 | Construction method of assembled primary support structure of tunnel in water-rich area |
| CN111878115A (en) * | 2020-07-17 | 2020-11-03 | 山东交通学院 | Cavity assembly type tunnel inverted arch and construction method |
| CN112627853A (en) * | 2020-11-27 | 2021-04-09 | 中铁第一勘察设计院集团有限公司 | Tunnel inverted arch structure |
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| CN109252874B (en) | 2024-04-05 |
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