CN203961997U - Shield structure hole glass fiber muscle fender post partial reinforced structure - Google Patents
Shield structure hole glass fiber muscle fender post partial reinforced structure Download PDFInfo
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- CN203961997U CN203961997U CN201420382452.6U CN201420382452U CN203961997U CN 203961997 U CN203961997 U CN 203961997U CN 201420382452 U CN201420382452 U CN 201420382452U CN 203961997 U CN203961997 U CN 203961997U
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- glass fiber
- fiber muscle
- shield structure
- stirrup
- fender post
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- Expired - Fee Related
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Abstract
A kind of shield structure hole glass fiber muscle fender post partial reinforced structure, shield structure vertical shaft fender post adopts glass fiber muscle corresponding to the arrangement of reinforcement of the shield structure openings position through shield machine, and other positions adopt reinforcing bar; Between glass fiber muscle and reinforcing bar, mutually overlap, and with being no less than two U-shaped buckle mechanical connections of steel; The region of glass fiber muscle covers shield structure hole periphery; Reinforcing bar and glass fiber muscle are made up of many axial ribs and the stirrup that is centered around axial ribs.The region that described fender post is adjacent with shield structure hole periphery is provided with glass fiber muscle stirrup and strengthens district, and the stirrup spacing in glass fiber muscle stirrup reinforcement district is less than the stirrup spacing of the glass fiber muscle in other regions.The utility model beneficial effect is: the stirrup ratio that increases glass fiber muscle stirrup by part, not only for shield structure well excavation has improved safety stock, and strengthen the shear-carrying capacity of hole edge glass fiber muscle stake, prevent integral anti-shearing and destroy, the safety that has greatly improved shield launching.
Description
Technical field
The utility model relates to hole glass fiber muscle fender post in shield tunnel construction, and specifically the local structure of strengthening of a kind of shield structure hole glass fiber muscle fender post, may extend to the application of the glass fiber muscle diaphragm wall of shield launching, reception place.
Background technology
Shield tunnel is domestic and international application the most a kind of tunnel piercing method at present, and shield construction is generally divided into three phases, i.e. shield launching, normal driving, reception.At present subway station or shield structure well be shield machine 3(as shown in Figure 1) start and the necessary condition receiving, in shield launching and arrival and must abolish the reinforcing bar of end well fender post 1 inside at hole before passing through, abolishing, construction safety risk and duration that in process, existence is larger are longer, as stratum, outside after abolishing directly exposes, be prone to water burst and cave in, cause stratum settlement around, even landslide, and then cause shield structure normally to start and receive etc.Station as logical in Line of Nanjing Subway unit, workman in 2007 is in the time cutting off hole place supporting and protection structure reinforcing bar, and the soil body caves in suddenly, and Sand phenomenon occurs, and causes ground gross distortion to subside, and the length of subsiding reaches 150m; Such accident is too numerous to enumerate, and such accident all appearred in the areas such as Shanghai, Changsha, Tianjin.Seeking a kind of method that can utilize shield cutter directly to cut is the problem of pendulum in face of engineers and technicians.Glass fiber muscle (Glass Fiber Reinforced Polymer Rebar), is called for short GFRP, is a kind of glass fibre reinforced composion, is merged and forms through heat by glass fiber and resin, can be processed into the form the same with reinforcing bar and size.Compared with reinforcing bar, GFRP muscle has that tensile strength is high, lightweight, can cutting good, corrosion resistance is good, heat conduction and the advantage such as electrical conduction ability is low, can be used for replacing under many circumstances plain bars.The region (tunnel opening area) 2 of the fender post 1 passing at shield machine 3 adopts after glass fiber muscle Part Substitution reinforcing bars, and shield machine 3 can directly cut fender post 1, and sets up soil pressure, and shield structure is reinforced in a small amount of termination and the not safety construction of starting under precipitation condition.
After application glass fiber muscle Part Substitution reinforcing bar there are some problems in shield launching.Because glass fiber muscle has lower shear strength, after shield structure thrust and stake, under soil pressure effect, easily there is general shear failure in the upper and lower edge in shield structure hole glass fiber muscle fender post.
Summary of the invention
The purpose of this utility model is: provide a kind of shield structure hole glass fiber muscle fender post the local structure of strengthening, and not enough and easily cause the problem of engineering accident to solve the upper and lower edge in shield structure hole glass fiber muscle fender post shear-carrying capacity that prior art exists.
The technical solution of the utility model is: a kind of shield structure hole glass fiber muscle fender post partial reinforced structure, and shield structure vertical shaft fender post adopts glass fiber muscle corresponding to the arrangement of reinforcement of the shield structure openings position through shield machine, and other positions adopt reinforcing bar; Overlap joint mutually between glass fiber muscle and reinforcing bar, and with at least two U-shaped buckle mechanical connections of steel; The region of glass fiber muscle covers shield structure hole periphery; Reinforcing bar and glass fiber muscle are made up of many axial ribs and the stirrup that is centered around axial ribs, it is characterized in that, the region that described fender post is adjacent with shield structure hole periphery is provided with glass fiber muscle stirrup and strengthens district, and the stirrup spacing in glass fiber muscle stirrup reinforcement district is less than the stirrup spacing of the glass fiber muscle in other regions.
Be positioned at the fender post of shield structure hole above-below direction diametrical position, centered by edge, shield structure hole, within the scope of the each 500mm in both sides, be provided with described glass fiber muscle stirrup reinforcement district up and down; It is 2000mm that the glass fiber muscle stirrup that is positioned at the fender post of shield structure hole the right and left is strengthened the length in district, centered by the center intersection point of edge, shield structure hole and fender post up and down respectively as 1000mm.
The stirrup spacing of described reinforcing bar and glass fiber muscle is 200mm, and the stirrup spacing that described glass fiber muscle stirrup is strengthened district is 100mm.
Lap length between described reinforcing bar and glass fiber muscle is 40 times of axial ribs diameter.
The utility model beneficial effect is: the stirrup ratio that increases glass fiber muscle stirrup by part, not only for shield structure well excavation has improved safety stock, and strengthen the shear-carrying capacity of hole edge glass fiber muscle stake, prevent integral anti-shearing and destroy, the safety that has greatly improved shield launching.
Brief description of the drawings
Fig. 1 is the accessible schematic diagram starting of shield structure;
Fig. 2 is a left side (right side) view (broken section) of fender post in Fig. 1;
Fig. 3 is the utility model shield structure hole fender post glass fiber muscle, reinforcement placement schematic diagram;
Fig. 4 is the enlarged drawing at P place in Fig. 3.
Detailed description of the invention
Referring to Fig. 3 and Fig. 4, a kind of shield structure hole glass fiber muscle fender post partial reinforced structure, the fender post 1 of shield structure vertical shaft adopts glass fiber muscle 54 corresponding to the arrangement of reinforcement 5 of 4 positions, shield structure hole through shield machine, and other positions adopt reinforcing bar 51; Between glass fiber muscle 54 and reinforcing bar 51, mutually overlap, (glass fiber muscle 54 and reinforcing bar 51) overlap 52 use are no less than two U-shaped buckle mechanical connections of steel (for the patented technology of our unit).The region of glass fiber muscle covers shield structure hole 4 scopes (overlap 52 is positioned at outside 4 peripheries of shield structure hole).Reinforcing bar 51 and glass fiber muscle 54 form (prior art) by many axial ribs and the stirrup that is centered around axial ribs.It is characterized in that, described fender post 1 region adjacent with shield structure hole 4 peripheries is provided with glass fiber muscle stirrup and strengthens district 53, and the stirrup spacing in glass fiber muscle stirrup reinforcement district 53 is less than stirrup 54 spacing of the glass fiber muscle in other regions.
In illustrated embodiment, the fender post 1(that is arranged in shield structure hole 4 above-below direction diametrical position is the fender post in the middle of Fig. 3), centered by 4 edges, shield structure hole, within the scope of the each 500mm in both sides, be provided with described glass fiber muscle stirrup reinforcement district 53 up and down; It is 2000mm that the glass fiber muscle stirrup that is positioned at the fender post 1 of shield structure hole 4 the right and lefts is strengthened the length in district 53, centered by the edge at shield structure hole 4 and the center intersection point of fender post 1 up and down respectively as 1000mm.
Described reinforcing bar 51 and the stirrup spacing of glass fiber muscle 54 are 200mm, and the stirrup spacing that described glass fiber muscle stirrup is strengthened district 53 is 100mm.
Lap length (being the length of overlap 52) between described reinforcing bar 51 and glass fiber muscle 54 is 40 times of axial ribs (main muscle) diameter.
In Fig. 3 and Fig. 4,1 footpath 800mm of fender post, the diameter 6000mm at shield structure hole 4, the pile spacing 1200mm of fender post 1.The overlap 52, glass fiber muscle stirrup that the arrangement of reinforcement 5 of each fender post 1 is followed successively by reinforcing bar (district) 51, glass fiber muscle and reinforcing bar from top to bottom strengthened district 53, glass fiber muscle (district) 54, glass fiber muscle stirrup and strengthens overlap 52, the reinforcing bar (district) 51 of district 53, glass fiber muscle and reinforcing bar.
Claims (4)
1. a shield structure hole glass fiber muscle fender post partial reinforced structure, shield structure vertical shaft fender post adopts glass fiber muscle corresponding to the arrangement of reinforcement of the shield structure openings position through shield machine, and other positions adopt reinforcing bar; Overlap joint mutually between glass fiber muscle and reinforcing bar, and with at least two U-shaped buckle mechanical connections of steel; The region of glass fiber muscle covers shield structure hole periphery; Reinforcing bar and glass fiber muscle are made up of many axial ribs and the stirrup that is centered around axial ribs, it is characterized in that, the region that described fender post is adjacent with shield structure hole periphery is provided with glass fiber muscle stirrup and strengthens district, and the stirrup spacing in glass fiber muscle stirrup reinforcement district is less than the stirrup spacing of the glass fiber muscle in other regions.
2. shield structure according to claim 1 hole glass fiber muscle fender post partial reinforced structure, it is characterized in that, be positioned at the fender post of shield structure hole above-below direction diametrical position, centered by edge, shield structure hole, within the scope of the each 500mm in both sides, be provided with described glass fiber muscle stirrup reinforcement district up and down; It is 2000mm that the glass fiber muscle stirrup that is positioned at the fender post of shield structure hole the right and left is strengthened the length in district, centered by the center intersection point of edge, shield structure hole and fender post up and down respectively as 1000mm.
3. shield structure according to claim 1 hole glass fiber muscle fender post partial reinforced structure, is characterized in that, the stirrup spacing of described reinforcing bar and glass fiber muscle is 200mm, and the stirrup spacing that described glass fiber muscle stirrup is strengthened district is 100mm.
4. shield structure according to claim 1 hole glass fiber muscle fender post partial reinforced structure, is characterized in that, the lap length between described reinforcing bar and glass fiber muscle is 40 times of axial ribs diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382452.6U CN203961997U (en) | 2014-07-11 | 2014-07-11 | Shield structure hole glass fiber muscle fender post partial reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382452.6U CN203961997U (en) | 2014-07-11 | 2014-07-11 | Shield structure hole glass fiber muscle fender post partial reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961997U true CN203961997U (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420382452.6U Expired - Fee Related CN203961997U (en) | 2014-07-11 | 2014-07-11 | Shield structure hole glass fiber muscle fender post partial reinforced structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203961997U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060997A (en) * | 2014-07-11 | 2014-09-24 | 北京建筑大学 | Method for conducting construction by enabling shield tunneling machine to penetrate through inspection well |
| CN104806267A (en) * | 2015-04-29 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof |
| CN106988760A (en) * | 2017-04-12 | 2017-07-28 | 中铁二院工程集团有限责任公司 | Facility-sliding strata tunnel portal reinforcing construction and construction method |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
-
2014
- 2014-07-11 CN CN201420382452.6U patent/CN203961997U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060997A (en) * | 2014-07-11 | 2014-09-24 | 北京建筑大学 | Method for conducting construction by enabling shield tunneling machine to penetrate through inspection well |
| CN104060997B (en) * | 2014-07-11 | 2016-03-30 | 北京建筑大学 | The construction method of shield crossing manhole |
| CN104806267A (en) * | 2015-04-29 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof |
| CN106988760A (en) * | 2017-04-12 | 2017-07-28 | 中铁二院工程集团有限责任公司 | Facility-sliding strata tunnel portal reinforcing construction and construction method |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
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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: 20141126 Termination date: 20170711 |