CN108331605A - A kind of tunnel exhausting duct precast assembly method - Google Patents
A kind of tunnel exhausting duct precast assembly method Download PDFInfo
- Publication number
- CN108331605A CN108331605A CN201711433049.6A CN201711433049A CN108331605A CN 108331605 A CN108331605 A CN 108331605A CN 201711433049 A CN201711433049 A CN 201711433049A CN 108331605 A CN108331605 A CN 108331605A
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- channel base
- air channel
- base plate
- prefabricated
- hold
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
- E21F1/06—Duct connections
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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)
- Lining And Supports For Tunnels (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses a kind of tunnel exhausting duct precast assembly methods, prefabricated air channel base plate piecemeal is erected on the bracket of cast-in-place air duct side wall, and the operations such as notch filling pea gravel concreten, hold-down bolt between cast-in-place side wall bracket and prefabricated air channel base plate, bottom plate set up with prefabricated air channel base plate piecemeal and implement, working strength and difficulty so are can obviously reduce, saves human cost.Advantages of the present invention is：Exempt and tear template operation in long and narrow air duct open, hence it is evident that reduces operation intensity and difficulty, save human cost；Meet " green " construction requirement；Use hold-down bolt, connection bolt can effectively prevent vehicle traveling generate vibration and tunnel internal such as top plate and air channel base plate to be installation fire-proof plate cause between prefabricated air duct plate gap to expand to leak out and lead to influence exhaust effect using drilling setting anchor bolt operation vibration；The air channel base plate being damaged such as in the accidents such as tunnel fire hazard is easily changed.
Description
Technical field
The present invention is suitable for tunnel or the tunnel exhausting duct of longitudinal long range underground structure top plate setting rectangular duct is pre-
Assembling method processed.
Background technology
Being built in business district underground loop generally uses loop top plate setting rectangle exhausting duct in underground to be used for loop air draft, commonly uses
Rectangle exhausting duct height it is smaller, template inside air duct need to be removed using monolithic reinforced concrete structure, due to net in exhausting duct
Outage degree is small, and form removal personnel can only be over long distances（The length of deformation joint spacing, typically no less than 25m）Crawling operations, work
Environment is poor, and working strength is larger, and thus installation prefabricated to air duct proposes demand.
Invention content
The purpose of the present invention is to provide a kind of tunnel exhausting duct precast assembly method, the work that can obviously reduce installation is strong
Degree and difficulty, save human cost.
To achieve the goals above, technical scheme is as follows：A kind of tunnel exhausting duct precast assembly method, it is special
Sign is：The prefabricated installation method of tunnel exhausting duct includes the following steps：
A, prefabricated air channel base plate is made, air duct is divided into the prefabricated air channel base plate of several unit lengths along its length；
B, cast-in-place tunnel roof and air duct side wall, the air duct side wall bracket positioned at air duct lower sidewall, before casting and compacting of concrete
Hold-down bolt built-in pipe is installed and is located in air duct side wall bracket position；
C, prefabricated air channel base plate rubber spacer is pasted on the side wall bracket of air duct after concrete reaches intensity；
D, by prefabricated air channel base plate, both ends are erected on the side wall bracket of air duct in the width direction, prefabricated air channel base plate both ends and air duct
There are cast-in-place notches between side wall；Both sides upper end to the middle part of the prefabricated air channel base plate along its length is equipped with a connection and lacks
Mouthful, lower end sets hand hole notch, and connector reinforcing bar is reserved at connection breach, and hand hole indentation, there sets built-in fitting, adjacent two pieces of prefabricated wind
The connection breach of road bottom plate cooperatively form a connection pouring area, and the hand hole notch of adjacent two pieces of prefabricated air channel base plates cooperatively forms hand
Hole, the built-in fitting of adjacent two pieces of prefabricated air channel base plates is equipped with matched link bolt hole in hand hole, described；
E, hold-down bolt is inserted in hold-down bolt built-in pipe, connection bolt is put into the link bolt hole of pre-embedded steel slab in hand hole
Interior and coordination is gradually tightened；
F, it is built into prefabricated air channel base plate in the connection pouring area and connects longitudinal reinforcement；
G, between air duct side wall and prefabricated air channel base plate pouring area is connected between cast-in-place notch and adjacent two pieces of prefabricated air channel base plates
Pea gravel concreten is inside filled respectively, can mix swelling agent；
H, it after after the tunnel air duct of certain length section, installation is complete, is stitched between cast-in-place air duct side wall bracket and prefabricated air channel base plate
Gap uses clay pointing between gap and adjacent two pieces of prefabricated air channel base plates.
Further, in step E, hold-down bolt elbow is arranged in the hold-down bolt upper end, and hold-down bolt inner side of elbow is set
There is hold-down bolt screens bar, with hold-down bolt elbow at 90 degree of positioning weldings, hold-down bolt hypomere is inserted into hold-down bolt screens bar
In hold-down bolt built-in pipe, epimere is located in cast-in-place notch, and after tightening, hold-down bolt screens bar is located in cast-in-place notch, compresses
Bolt elbow exposes outside cast-in-place notch.Hold-down bolt screens bar forms 90 degree of right angles with hold-down bolt elbow, can be easy to compress spiral shell
Bolt elbow effectively push down prefabricated air channel base plate and meanwhile tightened on the outside of air duct nut due to hold-down bolt screens bar screens yes
Screw rod can not possibly be rotated with tightening nut.
Further, the root of the reserved connector reinforcing bar at the connection breach is embedded in prefabricated air channel base plate, end
Portion extends into connection breach, and extends to beyond being bent obliquely upward after pre-buried air channel base plate range, adjacent two pieces of prefabricated wind
The reserved connector reinforcing bar bending part of road bottom plate is interlaced, formation U-shaped structure, in step F, prefabricated air channel base plate is connected vertical
To steel-bar arrangement in U-shaped structure.
Further, cast-in-place air duct side wall bracket is arranged the lower section of cast-in-place air duct side wall, and towards cast-in-place air duct side wall
Inside extends, and the upper surface of extension forms the low inclined-plane in the high inside in outside, and prefabricated air channel base plate rubber spacer is pasted described
The inside on inclined-plane, the setting of both ends bottom and the matched inclined-plane in the inclined-plane of the prefabricated air channel base plate.
Further, the hand hole indentation, there sets built-in fitting as pre-embedded steel slab, and connection bolt is equipped in the pre-embedded steel slab
Hole and embedded bar in prefabricated air channel base plate is stretched into, the pre-embedded steel slab of adjacent two pieces of prefabricated air channel base plates passes through prefabricated air duct
Bottom plate connector rubber pad connects, and is connected with connection between the respective bolt holes of the pre-embedded steel slab of adjacent two pieces of prefabricated air channel base plates
Bolt.
Exhausting duct method for prefabricating in tunnel of the present invention is not required to creep form removal and by prefabricated air channel base plate piecemeal（Piecemeal length
Generally no greater than 2m）It is erected on the bracket of cast-in-place air duct side wall, and between cast-in-place side wall bracket and prefabricated air channel base plate, bottom plate
Notch filling pea gravel concreten, the operations such as hold-down bolt set up and implement with prefabricated air channel base plate piecemeal, so can obviously reduce
Working strength and difficulty save human cost, while also complying with " green " construction requirement.
Advantages of the present invention is as described below：
1. exempting in long and narrow air duct and tearing template operation open, hence it is evident that reduce operation intensity and difficulty, save human cost；
2. meeting " green " construction requirement；
3. vehicle traveling can be effectively prevent to generate vibration and tunnel internal such as top plate and air duct using hold-down bolt, connection bolt
Gap, which expands to leak out, between bottom plate uses the vibrations such as setting anchor bolt operation that drill to cause prefabricated air duct plate for installation fire-proof plate leads
It causes to influence exhaust effect；
4. being easily changed for the air channel base plate being damaged such as in the accidents such as tunnel fire hazard.
Description of the drawings
Fig. 1 is tunnel cross section figure.
Fig. 2 is prefabricated air channel base plate mounting plane figure.
Fig. 3 is that cross-sectional view is installed in air duct processed.
Fig. 4 is cast-in-place air duct sidewall profile figure.
Fig. 5 is air channel base plate and cast-in-place side wall detail drawing of installation（Detail drawing）.
Fig. 6 is hold-down bolt detail drawing.
Fig. 7 is prefabricated air channel base plate longitudinal seam detail drawing（1-1 sectional views）.
Fig. 8 is prefabricated air channel base plate built-in fitting detail drawing（Detail drawing）.
Each unit number indicates as follows in figure：
Cast-in-place air duct side wall；
The cast-in-place air duct side wall brackets of 1-1；
2. prefabricated air channel base plate；
The prefabricated air channel base plate side-struts of 2-1, the prefabricated air channel base plate connector notches of 2-2,2-3 reserve connector reinforcing bar, 2-4 bolts peace
Fill hand hole, the prefabricated air channel base plate built-in fittings of 2-5；The filling of 2-6 clay, 2-7 connections bolt, the prefabricated air channel base plate connector rubber of 2-8
The prefabricated air channel base plate connector pea gravel concreten filling of pad, 2-9, the prefabricated air channel base plates of 2-10 connect longitudinal reinforcement；
3. air channel top board；
4. clay is filled；
5. prefabricated air channel base plate rubber spacer；
6. hold-down bolt；
6-1 hold-down bolt screens bar, 6-2 hold-down bolt elbows；
7. hold-down bolt built-in pipe；
8. air duct side wall is filled with prefabricated panel connector pea gravel concreten；
9. prefabricated steel；
9-1 embedded part bolts hole, 9-2 built-in fitting anchor bars；
10. air duct.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
A kind of tunnel exhausting duct precast assembly structure as shown in the figure, including cast-in-place air duct side wall 1, it is characterised in that the tunnel
Exhausting duct precast assembly structure further includes
Cast-in-place air duct side wall bracket 1-1, the cast-in-place air duct side wall bracket 1-1 are arranged on the inside of the lower section of cast-in-place air duct side wall 1；
The prefabricated air channel base plate 2 of several unit lengths, both ends are erected at several described prefabricated air channel base plates 2 in the width direction
On cast-in-place air duct side wall bracket 1-1, there are cast-in-place notches between 2 both ends of prefabricated air channel base plate and cast-in-place air duct side wall 1；If described
Dry prefabricated air channel base plate 2 is spliced successively along its length；
Hold-down bolt built-in pipe 7, hold-down bolt built-in pipe 7 is arranged in cast-in-place air duct side wall bracket 1-1, and the hold-down bolt
Built-in pipe 7 should be located at the position below cast-in-place notch close to inside；
Hold-down bolt 6,6 hypomere of the hold-down bolt are inserted into hold-down bolt built-in pipe 7, and epimere is located in cast-in-place notch, described
Hold-down bolt elbow 6-2 is arranged in 6 upper end of hold-down bolt, and hold-down bolt screens bar 6-1, pressure are equipped on the inside of hold-down bolt elbow 6-2
Tight bolt screens bar 6-1 and hold-down bolt elbow 6-2 is at 90 degree of positioning weldings；
Cast-in-place interconnecting piece, the cast-in-place interconnecting piece are to be filled between prefabricated air channel base plate both ends and air duct side wall in cast-in-place notch
Pea gravel concreten, the epimere and hold-down bolt screens bar of the hold-down bolt be respectively positioned in cast-in-place interconnecting piece, and hold-down bolt is curved
Head is located at outside cast-in-place interconnecting piece.
Further, both sides upper end to the middle part of the prefabricated air channel base plate 2 along its length is equipped with a connection breach, under
End sets hand hole notch, and connector reinforcing bar 2-3 is reserved at connection breach, and hand hole indentation, there sets prefabricated air channel base plate built-in fitting 2-5, phase
The connection breach of adjacent two pieces of prefabricated air channel base plates 2 cooperatively form a connection pouring area, the hand hole of adjacent two pieces of prefabricated air channel base plates 2
Notch cooperatively forms hand hole, and adjacent two pieces of prefabricated air channel base plate built-in fitting 2-5 are equipped with matched link bolt hole, institute in hand hole
It states and is connected with connection bolt 2-7 between matched link bolt hole.
Further, the root of the reserved connector reinforcing bar 2-3 at the connection breach is embedded in prefabricated air channel base plate,
End extends into connection breach, and extends to beyond being bent obliquely upward after 2 range of pre-buried air channel base plate, and adjacent two pieces prefabricated
The reserved connector reinforcing bar 2-3 bending parts of air channel base plate 2 are interlaced, form U-shaped structure, the prefabricated longitudinal steel of air channel base plate connection
Muscle is set in U-shaped structure.
Further, cast-in-place air duct side wall bracket 1-1 is arranged the lower section of cast-in-place air duct side wall 1, and towards cast-in-place air duct side
The inside of wall 1 extends, and the upper surface of extension forms the low inclined-plane in the high inside in outside, and prefabricated air channel base plate rubber spacer 5 is pasted
Inside on the inclined-plane.
Further, the hand hole indentation, there sets prefabricated air channel base plate built-in fitting 2-5, specific implementation according to the present invention
Example, the prefabricated air channel base plate built-in fitting are pre-embedded steel slab 9, and link bolt hole is equipped in the pre-embedded steel slab 9 and is stretched into pre-
The pre-embedded steel slab of embedded bar in air channel base plate processed, adjacent two pieces of prefabricated air channel base plates passes through prefabricated air channel base plate connector rubber
Pad connection, and it is connected with connection bolt between the respective bolt holes of the pre-embedded steel slab of adjacent two pieces of prefabricated air channel base plates.
A kind of tunnel exhausting duct precast assembly method of the present invention, steps are as follows for implementation：
A, prefabricated air channel base plate is made, air duct is divided into the prefabricated air channel base plate of several unit lengths along its length；
B, cast-in-place tunnel roof and air duct side wall, the air duct side wall bracket positioned at air duct lower sidewall, before casting and compacting of concrete
Hold-down bolt built-in pipe is installed and is located in air duct side wall bracket position；
C, prefabricated air channel base plate rubber spacer is pasted on the side wall bracket of air duct after concrete reaches intensity；
D, by prefabricated air channel base plate, both ends are erected on the side wall bracket of air duct in the width direction, prefabricated air channel base plate both ends and air duct
There are cast-in-place notches between side wall；Both sides upper end to the middle part of the prefabricated air channel base plate along its length is equipped with a connection and lacks
Mouthful, lower end sets hand hole notch, and connector reinforcing bar is reserved at connection breach, and hand hole indentation, there sets built-in fitting, adjacent two pieces of prefabricated wind
The connection breach of road bottom plate cooperatively form a connection pouring area, and the hand hole notch of adjacent two pieces of prefabricated air channel base plates cooperatively forms hand
Hole, the built-in fitting of adjacent two pieces of prefabricated air channel base plates is equipped with matched link bolt hole in hand hole, described；
E, hold-down bolt is inserted in hold-down bolt built-in pipe, connection bolt is put into the link bolt hole of pre-embedded steel slab in hand hole
Interior and coordination is gradually tightened；
F, it is built into prefabricated air channel base plate in the connection pouring area and connects longitudinal reinforcement；
G, between air duct side wall and prefabricated air channel base plate pouring area is connected between cast-in-place notch and adjacent two pieces of prefabricated air channel base plates
Pea gravel concreten is inside filled respectively, can mix swelling agent；
H, it after after the tunnel air duct of certain length section, installation is complete, is stitched between cast-in-place air duct side wall bracket and prefabricated air channel base plate
Gap uses clay pointing between gap and adjacent two pieces of prefabricated air channel base plates.
Further, in step E, hold-down bolt elbow is arranged in the hold-down bolt upper end, and hold-down bolt inner side of elbow is set
There is hold-down bolt screens bar, with hold-down bolt elbow at 90 degree of positioning weldings, hold-down bolt hypomere is inserted into hold-down bolt screens bar
In hold-down bolt built-in pipe, epimere is located in cast-in-place notch, and after tightening, hold-down bolt screens bar is located in cast-in-place notch, compresses
Bolt elbow exposes outside cast-in-place notch.Hold-down bolt screens bar forms 90 degree of right angles with hold-down bolt elbow, can be easy to compress spiral shell
Bolt elbow effectively push down prefabricated air channel base plate and meanwhile tightened on the outside of air duct nut due to hold-down bolt screens bar screens yes
Screw rod can not possibly be rotated with tightening nut.
Further, the root of the reserved connector reinforcing bar 2-3 at the connection breach is embedded in prefabricated air channel base plate,
End extends into connection breach, and extends to beyond being bent obliquely upward after 2 range of pre-buried air channel base plate, and adjacent two pieces prefabricated
The reserved connector reinforcing bar 2-3 bending parts of air channel base plate 2 are interlaced, form U-shaped structure, the prefabricated longitudinal steel of air channel base plate connection
Muscle is set in U-shaped structure.
Further, cast-in-place air duct side wall bracket 1-1 is arranged the lower section of cast-in-place air duct side wall 1, and towards cast-in-place air duct side
The inside of wall 1 extends, and the upper surface of extension forms the low inclined-plane in the high inside in outside, and prefabricated air channel base plate rubber spacer 5 is pasted
Inside on the inclined-plane.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", " perpendicular
To ", " transverse direction ", "top", "bottom", "inner", the instructions such as "outside" orientation or positional relationship be orientation based on ... shown in the drawings or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (5)
1. a kind of tunnel exhausting duct precast assembly method, it is characterised in that：The prefabricated installation method of tunnel exhausting duct includes
Following steps：
A, prefabricated air channel base plate is made, air duct is divided into the prefabricated air channel base plate of several unit lengths along its length；
B, cast-in-place tunnel roof and air duct side wall, the air duct side wall bracket positioned at air duct lower sidewall, before casting and compacting of concrete
Hold-down bolt built-in pipe is installed and is located in air duct side wall bracket position；
C, prefabricated air channel base plate rubber spacer is pasted on the side wall bracket of air duct after concrete reaches intensity；
D, by prefabricated air channel base plate, both ends are erected on the side wall bracket of air duct in the width direction, prefabricated air channel base plate both ends and air duct
There are cast-in-place notches between side wall；Both sides upper end to the middle part of the prefabricated air channel base plate along its length is equipped with a connection and lacks
Mouthful, lower end sets hand hole notch, and connector reinforcing bar is reserved at connection breach, and hand hole indentation, there sets built-in fitting, adjacent two pieces of prefabricated wind
The connection breach of road bottom plate cooperatively form a connection pouring area, and the hand hole notch of adjacent two pieces of prefabricated air channel base plates cooperatively forms hand
Hole, the built-in fitting of adjacent two pieces of prefabricated air channel base plates is equipped with matched link bolt hole in hand hole, described；
E, hold-down bolt is inserted in hold-down bolt built-in pipe, connection bolt is put into the link bolt hole of pre-embedded steel slab in hand hole
Interior and coordination is gradually tightened；
F, it is built into prefabricated air channel base plate in the connection pouring area and connects longitudinal reinforcement；
G, between air duct side wall and prefabricated air channel base plate pouring area is connected between cast-in-place notch and adjacent two pieces of prefabricated air channel base plates
Pea gravel concreten is inside filled respectively, can mix swelling agent；
H, it after after the tunnel air duct of certain length section, installation is complete, is stitched between cast-in-place air duct side wall bracket and prefabricated air channel base plate
Gap uses clay pointing between gap and adjacent two pieces of prefabricated air channel base plates.
2. exhausting duct precast assembly method in tunnel as described in claim 1, it is characterised in that in step E, the hold-down bolt
Hold-down bolt elbow is arranged in upper end, and hold-down bolt inner side of elbow is equipped with hold-down bolt screens bar, hold-down bolt screens bar and compression
Bolt elbow is inserted at 90 degree of positioning weldings, hold-down bolt hypomere in hold-down bolt built-in pipe, and epimere is located in cast-in-place notch, is twisted
Next, hold-down bolt screens bar is located in cast-in-place notch, and hold-down bolt elbow exposes outside cast-in-place notch；
Hold-down bolt screens bar forms 90 degree of right angles with hold-down bolt elbow, can be easy to hold-down bolt elbow and effectively pushes down prefabricated wind
Road bottom plate tightens screw rod that nut is due to the screens of hold-down bolt screens bar on the outside of air duct simultaneously can not possibly be with screwing spiral shell
It is female and rotate.
3. exhausting duct precast assembly method in tunnel as described in claim 1, it is characterised in that reserved at the connection breach
The root of connector reinforcing bar is embedded in prefabricated air channel base plate, and end extends into connection breach, and is extended to beyond pre-buried wind
It being bent obliquely upward after road bottom plate range, the reserved connector reinforcing bar bending part of adjacent two pieces of prefabricated air channel base plates is interlaced,
U-shaped structure is formed, in step F, prefabricated air channel base plate connection longitudinal reinforcement is set in U-shaped structure.
4. exhausting duct precast assembly method in tunnel as described in claim 1, it is characterised in that cast-in-place air duct side wall bracket setting
The lower section of cast-in-place air duct side wall, and extend towards the inside of cast-in-place air duct side wall, the upper surface of extension forms the high inside in outside
Low inclined-plane, prefabricated air channel base plate rubber spacer are pasted in the inside on the inclined-plane, the both ends bottom of the prefabricated air channel base plate
Setting and the matched inclined-plane in the inclined-plane.
5. exhausting duct precast assembly method in tunnel as described in claim 1, it is characterised in that the hand hole indentation, there sets pre-buried
Part is pre-embedded steel slab, and link bolt hole is equipped in the pre-embedded steel slab and stretches into the embedded bar in prefabricated air channel base plate, phase
The pre-embedded steel slab of adjacent two pieces of prefabricated air channel base plates is connected by prefabricated air channel base plate connector rubber pad, and adjacent two pieces of prefabricated air ducts
Connection bolt is connected between the respective bolt holes of the pre-embedded steel slab of bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433049.6A CN108331605B (en) | 2017-12-26 | 2017-12-26 | Prefabricated assembly method for tunnel exhaust duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433049.6A CN108331605B (en) | 2017-12-26 | 2017-12-26 | Prefabricated assembly method for tunnel exhaust duct |
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| Publication Number | Publication Date |
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| CN108331605A true CN108331605A (en) | 2018-07-27 |
| CN108331605B CN108331605B (en) | 2024-01-19 |
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| CN201711433049.6A Active CN108331605B (en) | 2017-12-26 | 2017-12-26 | Prefabricated assembly method for tunnel exhaust duct |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230381A (en) * | 2019-07-01 | 2019-09-13 | 中铁七局集团有限公司 | A kind of precast underground railway station rail top air channel structure and its construction method |
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| CN205369525U (en) * | 2016-01-21 | 2016-07-06 | 东南大学 | Local prestressing force assembled power consumption beam column node |
| CN106049704A (en) * | 2016-07-28 | 2016-10-26 | 杭州江润科技有限公司 | Prefabricated, cast-in-situ, combined type bare concrete exterior wall structure and construction method |
| CN106436758A (en) * | 2016-09-06 | 2017-02-22 | 沈阳建筑大学 | Precast fabricated concrete subway substation |
| CN207960659U (en) * | 2017-12-26 | 2018-10-12 | 上海市政工程设计研究总院（集团）有限公司 | A kind of tunnel exhausting duct precast assembly structure |
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| CN110230381A (en) * | 2019-07-01 | 2019-09-13 | 中铁七局集团有限公司 | A kind of precast underground railway station rail top air channel structure and its construction method |
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