CN203835410U - Notch type hinge structure of fender post and bored tunnel vault and base plate structure - Google Patents
Notch type hinge structure of fender post and bored tunnel vault and base plate structure Download PDFInfo
- Publication number
- CN203835410U CN203835410U CN201320402419.0U CN201320402419U CN203835410U CN 203835410 U CN203835410 U CN 203835410U CN 201320402419 U CN201320402419 U CN 201320402419U CN 203835410 U CN203835410 U CN 203835410U
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- Prior art keywords
- fender post
- notch
- bored tunnel
- tunnel
- post
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- Expired - Fee Related
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Abstract
The utility model relates to a notch type hinge structure of a fender post and bored tunnel vault and a base plate structure. According to the notch type hinge structure, right-angle-shaped notches with upper left openings or right-angle-shaped notches with upper right openings are formed in the connecting positions of the vault or base plate structure of a bored tunnel and a fender post, waterproof layers are arranged on the notches, post bottom straining beams of the bored tunnel abut against the bottoms of the notches, the lower end of the fender post arranged in an upper guide hole and the post bottom straining beams at the bottoms are anchored together, the bored tunnel comprises a secondary lining of an arch portion, right-angle-shaped notches with lower left openings or right-angle-shaped notches with lower right openings are formed in the connecting positions of the secondary lining of the arch portion and a crown beam of the fender post, crown beam tops are arranged in the notches, the clearances between fender post top crown beams and the post bottom straining beams and the upper guide hole and a lower guide hole are filled with plain concrete, and the complete hinge structure of the fender post tops and bottoms is formed. The structure is easy to construct, and facilitates water prevention, and the stability and safety of the whole structure are guaranteed.
Description
Technical field
The utility model relates to underground structrue engineering technical field, relates in particular to while adopting fender post to double as tunnel vertical supporting structure the notch type articulated structure pattern between the top of fender post and bottom and tunnel structure.
Background technology
Underground engineering is built in the Downtown busy in traffic above-ground, network of underground is densely covered, for reducing the impact of work progress on surrounding enviroment, traffic above-ground, often adopts hidden construction process construction.
For the shortcoming such as overcome that traditional hidden construction process (CD method, CRD method etc.) construction conversion is many, structural stability is poor and expandability is poor, often adopt at present the fender post that first applies both sides, tunnel in little tunnel, using fender post as resisting lateral earth pressure and the novel excavation method (engineering method) of bearing vertical load member, as supporting arch hidden digging top-down method, PBA method etc.In this class engineering method, being connected between fender post and its top and bottom tunnel structure is very important, determines safety, stability and the durability of structure.Traditional joint geometry is for being rigidly connected, and the reinforcing bar of fender post anchors in the connected tunnel structure in top and bottom.This method of attachment is because the reinforcing bar of fender post and vault and base arrangement Nodes is intensive, and difficulty of construction is large, and the outer packaging waterproof layer of tunnel structure can not be continuous, and its waterproof effect is difficult to ensure.The utility model proposes a kind of novel notch type articulated structure structure that can the above-mentioned connectivity problem of fine solution.
Utility model content
The purpose of this utility model is the stake and the connected mode of top and bottom tunnel structure while utilizing fender post as tunnel vertical supporting member by change, overcome conventional node way waterproofing course can not be continuously and node cause difficulty of construction large because reinforcing bar is intensive, the problem that quality should not ensure.Its main core concept is to utilize notch type hinged structures to substitute traditional Bar Anchorage formula structure.
The technical solution of the utility model is:
After lower pilot drive completes, first build the base plate secondary liner structure in tunnel, the position that need to be connected with fender post at base arrangement arranges upper left opening right angle type,
shape or upper right opening right angle type,
the notch of shape;
Further, the water layer of setting up defences of precoating in notch, the waterproofing course of waterproofing course and base plate keeps continuously, and throws away the follow-up length that is connected needs with integral waterproofing layer.Then the straining beam at the bottom of building, drops on notch bottom at the bottom of straining beam;
Further, at the upper in-cavity construction fender post of leading, the lower end of fender post and bottom straining beam anchoring are integral;
Further, the Guan Liang on construction stake top, serves as a contrast the binding site water layer of setting up defences of precoating, and throws away the follow-up length that is connected needs with integral waterproofing layer in hat back and arch two;
Further, the secondary lining of construction arch, the secondary lining of arch is arranging lower-left opening right angle type with going along with sb. to guard him dowel crown beam interface,
shape or bottom right opening right angle type,
the notch of shape, hat back portion is against in notch.
Between the straining beam of fender post bottom and the Guan Liang at top and bottom secondary lining and top secondary lining, all do not take anchor measure, form articulated form, the effect between side (riser) structure of notch and straining beam or hat beam can ensure integrally-built stability under loading.
Further, with plain concrete or other materials, fill the space between fender post stake apical cap beam and stake end straining beam and pilot tunnel, form thus complete fender post top and the syndeton of bottom.
The beneficial effects of the utility model are:
(1) solve conventional rigid and connected complex structure, problem that difficulty of construction is large;
(2) outer packaging waterproof layer can be laid continuously by discontinuous the changing into of traditional method, is conducive to ensure waterproof effect;
(3) adopt notch type hinged structures, can ensure stability and the safety of construction stage structural system.
Brief description of the drawings
Fig. 1: the notch type hinged structures schematic diagram (supporting arch hidden digging top-down engineering method) of fender post top, bottom and tunnel vault, base arrangement.
Fig. 2: notch type hinged structures waterproofing course top schematic diagram (supporting arch hidden digging top-down engineering method).
Fig. 3: notch type hinged structures waterproofing course bottom schematic diagram (supporting arch hidden digging top-down engineering method).
Fig. 4: the notch type hinged structures schematic diagram (PBA engineering method) of fender post and bored tunnel vault and base arrangement.
Fig. 5: notch type hinged structures waterproofing course top schematic diagram (PBA engineering method).
Fig. 6: notch type hinged structures waterproofing course bottom schematic diagram (PBA engineering method).
Description of reference numerals: pilot tunnel on 1; 2 times pilot tunnels; 3 waterproofing courses; 4 tunnel floor structures; 5 tunnel sidewalls structures; 6 fender posts; 7 apical cap beams; Straining beam at the bottom of 8; 9 backfilling materials; 10 tunnel vault structures
Detailed description of the invention
By reference to the accompanying drawings, detailed description of the invention of the present utility model is illustrated as follows:
(1) adopt hidden construction process to apply after pilot tunnel 1 and lower pilot tunnel 2, at lower pilot tunnel 2 base plate paving full-packaging waterproof layers 3, apply tunnel floor structure 4, and build out part tunnel sidewalls structure 5.
(2) apply at the bottom of straining beam 8, fender post 6 and stake apical cap beam 7, build the backfilling material 9 between fender post 6 and lower pilot tunnel 2;
(3) after fender post 6 has applied, lay arch waterproofing course 3, build tunnel vault structure 10 and part tunnel sidewalls structure 5, build backfilling material 9 in the space of 1 of the same pilot tunnel of fender post simultaneously.
Claims (1)
1. the notch type hinged structures of a fender post and bored tunnel vault and base arrangement, described notch type hinged structures comprises that the vault of bored tunnel or the position that base arrangement is connected with fender post are the notch of upper left opening right angle type or upper right opening right angle type, on notch, be provided with waterproofing course, at the bottom of the stake end straining beam of bored tunnel in notch bottom, the stake end straining beam anchoring that is arranged on fender post lower end in pilot tunnel and bottom is integral, bored tunnel comprises the secondary lining of arch, the secondary lining of arch is arranging the notch of lower-left opening right angle type or bottom right opening right angle type with the hat beam interface of fender post, hat back portion is in notch, fender post stake apical cap beam and stake end straining beam and upper, space between lower pilot tunnel is filled with plain concrete, form complete fender post top and the hinged structures of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402419.0U CN203835410U (en) | 2013-07-08 | 2013-07-08 | Notch type hinge structure of fender post and bored tunnel vault and base plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402419.0U CN203835410U (en) | 2013-07-08 | 2013-07-08 | Notch type hinge structure of fender post and bored tunnel vault and base plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835410U true CN203835410U (en) | 2014-09-17 |
Family
ID=51513266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320402419.0U Expired - Fee Related CN203835410U (en) | 2013-07-08 | 2013-07-08 | Notch type hinge structure of fender post and bored tunnel vault and base plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201516A (en) * | 2015-10-10 | 2015-12-30 | 中铁二十局集团第一工程有限公司 | Subway station body structure and four-joint-arch PBA underground excavation construction method thereof |
| CN112065467A (en) * | 2020-09-23 | 2020-12-11 | 中铁工程装备集团有限公司 | Underground engineering supporting structure and construction method thereof |
-
2013
- 2013-07-08 CN CN201320402419.0U patent/CN203835410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201516A (en) * | 2015-10-10 | 2015-12-30 | 中铁二十局集团第一工程有限公司 | Subway station body structure and four-joint-arch PBA underground excavation construction method thereof |
| CN112065467A (en) * | 2020-09-23 | 2020-12-11 | 中铁工程装备集团有限公司 | Underground engineering supporting structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210708 |