CN201025038Y - Adjustable pre-stress steel arch frame - Google Patents
Adjustable pre-stress steel arch frame Download PDFInfo
- Publication number
- CN201025038Y CN201025038Y CNU2007200508527U CN200720050852U CN201025038Y CN 201025038 Y CN201025038 Y CN 201025038Y CN U2007200508527 U CNU2007200508527 U CN U2007200508527U CN 200720050852 U CN200720050852 U CN 200720050852U CN 201025038 Y CN201025038 Y CN 201025038Y
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- steel pipe
- connecting plate
- screw rod
- lower connecting
- steel
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Abstract
The utility model discloses an adjustable pre-stress steel arc rack, relating to the timbering apparatus in the underground excavation project construction, in particular to the steel arc rack. The utility model comprises arc joints between which an adjustable component is arranged; the adjustable component comprises an upper connecting plate, a lower connecting plate and an adjusting piece which is positioned between the upper and the lower connecting plates. The adjusting piece comprises a screw, a steel tube and a nut steel bar; the screw is fixedly connected with the upper connecting plate and can be spliced into the hole of the steel tube; the steel tube is fixedly connected with the lower connecting plate; the nut is spirally arranged on the screw and the lower end face of the nut is contacted with the end face of the steel tube hole. The utility model has the advantages that the adjustable component is arranged between the arc joints of the adjustable pre-stress steel arc rack; the length of the adjustable component can be adjusted to produce pre-stress so as to prevent or reduce the negative influence of the convergence and deformation of the walk rock to the surrounding environment.
Description
Technical field
The utility model relates to the support apparatus in the underground project dug underground construction, particularly steel bow member.
Background technology
In underground project dug underground was built, for example subway tunnel, mountain tunnel were at first wanted the tunneling earthwork, for preventing to cave in, dig certain distance after, carry out supporting, i.e. the supporting while excavating.The steel bow member is support apparatus commonly used.Existing steel bow member includes a plurality of arch joints, is combined into the steel bow member by the arch joint, and to support country rock, described country rock is meant the rock and the soil of steel bow member periphery.Its weak point is: the arch joint is formed by steel welding or riveted joint, does not have retractility, and during combination, the arch joint contacts with the arch joint.Arch joint is ready-made in advance, and the steel bow member overall dimensions after the combination and tunnel cross-section size are difficult in full accord, just needs to regulate when inconsistent, adds the method adjusting of choker block now with hoop, regulates cumbersomely, and can't get a desired effect.Adjusted even if add choker block, but environment is many-sided to be influenced owing to country rock is subjected to, and also might produce convergent deformation, will influence near the safety of the building in tunnel, or make pavement cracking, or influence the stability of massif.
Summary of the invention
Technical problem to be solved in the utility model is exactly to design in order to overcome above-mentioned weak point a kind of adjustable prestress steel bow member is provided, and settles preconditioning at the arch internode.The steel bow member is adjusted preregulated length after supporting country rock again, produces prestressing force, makes the steel bow member become the passive stressed active force that is in work progress, to prevent or to reduce the adverse effect that the country rock convergent deformation causes to surrounding environment.
The utility model adopts following technical scheme.
Adjustable prestress steel bow member comprises the arch joint, is mounted with and can regulates at the arch internode, can regulate including upper junction plate, lower connecting plate and regulating part, and regulating part is between upper junction plate and lower connecting plate.
Described regulating part comprises screw rod, steel pipe and nut, and screw rod is fixedlyed connected with upper junction plate and can be inserted in the hole of steel pipe, and steel pipe is fixedlyed connected with lower connecting plate, and nut revolves and is assigned on the screw rod, and its lower surface contacts with the steel pipe hole end surface.
Described regulating part comprises screw rod, following screw rod and nut, last screw rod is fixedlyed connected with upper junction plate, screw thread on it is a left hand thread, following screw rod is fixedlyed connected with lower connecting plate, screw thread on it is a right-handed thread, and the epimere of nut is a left hand thread, revolves with last screw rod and joins, its hypomere is a right-handed thread, revolves with following screw rod and joins.
Described regulating part comprises steel pipe, following steel pipe and latch, last steel pipe is fixedlyed connected with upper junction plate, and following steel pipe is fixedlyed connected with lower connecting plate, and last steel pipe inserts in the following steel pipe, all porose on the face of cylinder of upper and lower steel pipe, latch can insert in the hole on the upper and lower steel pipe face of cylinder the two connection.
Described regulating part is a jack, and the base of jack is connected with lower connecting plate, and fore-set is connected with upper junction plate.
Advantage of the present utility model is: owing to be provided with and can regulate at the arch internode of adjustable prestress steel bow member, behind steel bow member supporting country rock, by adjusting adjustable length, apply prestressing force for adjustable prestressing force, produce the outside pre-support power of hoop, make the passive stressed steel bow member predeformation generation hoop thrust that is of steel bow member after becoming the country rock convergent deformation.Structure of the present utility model makes this easy to adjust quick.Behind adjustable prestress steel bow member supporting country rock, adjust the length of steel bow member again, produce prestressing force, can prevent or reduce the adverse effect that the country rock convergent deformation brings to surrounding environment.
Description of drawings
Fig. 1 is the structural representation of the utility model steel bow member and contacts schematic diagram with country rock;
Fig. 2 is for can regulate embodiment one structural representation;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is for can regulate embodiment two structural representations;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is for can regulate embodiment three structural representations;
Fig. 7 is the C-C sectional view of Fig. 6;
Fig. 8 is for can regulate embodiment four structural representations;
Fig. 9 is for can regulate embodiment five structural representations;
Figure 10 is the D-D sectional view of Fig. 9.
The specific embodiment
With accompanying drawing the utility model is further described in conjunction with the embodiments.
Referring to Fig. 1, adjustable prestress steel bow member comprises the arch joint, is mounted with at 2 at arch joint and can regulates 1.There is end plate at the two ends of arch joint, can regulate between the end plate that is placed in two arch joints.Adjustable prestress steel bow member shown in Figure 1 has been placed in the tunnel, and the periphery of steel bow member is a country rock.Adjustable prestress steel bow member among the figure shown in the solid line is the form before the preset, adjusts adjustable length and adds form behind the prestressing force for shown in the dotted line among the figure.
Can regulate including upper junction plate 11, lower connecting plate 12 and regulating part, regulating part is between upper junction plate and lower connecting plate.A plurality of embodiment can have been regulated.Can regulate regulate after, its upper junction plate is connected with the end plate of arch joint, its lower connecting plate encircles the end plate that saves with another and is connected.
Can regulate embodiment one: referring to Fig. 2, Fig. 3, described regulating part comprises screw rod 20, steel pipe 21 and nut 22, screw rod 20 is fixedlyed connected with upper junction plate 11 and can be inserted in the hole of steel pipe 21, steel pipe 21 is fixedlyed connected with lower connecting plate 12, nut 22 revolves and is assigned on the screw rod 20, and its lower surface contacts with the steel pipe hole end surface.Control method is: withstand upper and lower junction plate with jack, turn nut 22, make the nut lower surface leave the steel pipe hole end surface, operate jack then, change adjustable length, after determining, turn nut again, the nut lower surface is contacted with the steel pipe hole end surface, withdraw jack then.
Can regulate embodiment two: referring to Fig. 4, Fig. 5, described regulating part comprises screw rod 23, following screw rod 24 and nut 25, last screw rod 23 is fixedlyed connected with upper junction plate 11, screw thread on it is a left hand thread, and following screw rod 24 is fixedlyed connected with lower connecting plate 12, and the screw thread on it is a right-handed thread, the epimere of nut 25 is a left hand thread, revolve with last screw rod and to join, its hypomere is a right-handed thread, revolves with following screw rod and joins.Control method is: turn nut 25, can make the distance of upper and lower junction plate become big or diminish.
Can regulate embodiment three: referring to Fig. 6, Fig. 7, described regulating part comprises steel pipe 26, following steel pipe 27 and latch 28, last steel pipe 26 is fixedlyed connected with upper junction plate 11, following steel pipe 27 is fixedlyed connected with lower connecting plate 12, last steel pipe inserts in the following steel pipe, all porose on the face of cylinder of upper and lower steel pipe, latch 28 can insert in the hole on the upper and lower steel pipe face of cylinder the two connection.Control method: withstand upper and lower junction plate with jack, extract latch 28, operate jack, change the distance of upper and lower junction plate, after determining, insert latch again, withdraw jack then.
Can regulate embodiment four: referring to Fig. 8, described regulating part is a jack 29, and the base of jack is connected with lower roof plate 12, and fore-set is connected with upper junction plate 11.Control method: jack withstands upper and lower junction plate, operates jack, can change the distance of upper and lower junction plate, after determining, and the locking jack.
Can regulate embodiment five: referring to Fig. 9, Figure 10, described regulating part comprises reinforcing bar 3 and following reinforcing bar 31, and last reinforcing bar 30 is fixedlyed connected with upper junction plate 11, and following reinforcing bar 31 is fixedlyed connected with lower connecting plate 12.Control method is: withstand upper and lower junction plate with jack, operate jack then and change the distance that goes up lower connecting plate, after regulating upper and lower reinforcing bar is welded to connect, remove the back jack.
In construction subsequently, the injected concrete of adjustable prestress steel bow member covers, and forms preliminary bracing.
Claims (6)
1. an adjustable prestress steel bow member comprises the arch joint, and it is characterized in that: be mounted with preconditioning (1) between arch joint (2), preconditioning includes upper junction plate (11), lower connecting plate (12) and regulating part, and regulating part is between upper junction plate and lower connecting plate.
2. adjustable prestress steel bow member according to claim 1, it is characterized in that: described regulating part comprises screw rod (20), steel pipe (21) and nut (22), screw rod (20) is fixedlyed connected with upper junction plate (11) and can be inserted in the hole of steel pipe (21), steel pipe (21) is fixedlyed connected with lower connecting plate (12), nut (22) revolves and is assigned on the screw rod (20), and its lower surface contacts with the steel pipe hole end surface.
3. adjustable prestress steel bow member according to claim 1, it is characterized in that: described regulating part comprises screw rod (23), following screw rod (24) and nut (25), last screw rod (23) is fixedlyed connected with upper junction plate (11), screw thread on it is a left hand thread, and following screw rod (24) is fixedlyed connected with lower connecting plate (12), and the screw thread on it is a right-handed thread, the epimere of nut (25) is a left hand thread, revolve with last screw rod and to join, its hypomere is a right-handed thread, revolves with following screw rod and joins.
4. adjustable prestress steel bow member according to claim 1, it is characterized in that: described regulating part comprises steel pipe (26), plays steel pipe (27) and the last steel pipe (26) of latch (28) to fixedly connected with upper junction plate (11), following steel pipe (27) is fixedlyed connected with lower connecting plate (12), last steel pipe inserts in the following steel pipe, all porose on the face of cylinder of upper and lower steel pipe, latch (28) can insert in the hole on the upper and lower steel pipe face of cylinder the two connection.
5. adjustable prestress steel bow member according to claim 1 is characterized in that: described regulating part is jack (29), and the base of jack is connected with lower connecting plate (12), and fore-set is connected with upper junction plate (12).
6. adjustable prestress steel bow member according to claim 1, it is characterized in that: described regulating part comprises reinforcing bar (30) and following reinforcing bar (31), last reinforcing bar (30) is fixedlyed connected with upper junction plate (11), and following reinforcing bar (31) is fixedlyed connected with lower connecting plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200508527U CN201025038Y (en) | 2007-04-27 | 2007-04-27 | Adjustable pre-stress steel arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200508527U CN201025038Y (en) | 2007-04-27 | 2007-04-27 | Adjustable pre-stress steel arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025038Y true CN201025038Y (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200508527U Expired - Fee Related CN201025038Y (en) | 2007-04-27 | 2007-04-27 | Adjustable pre-stress steel arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025038Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011597A (en) * | 2010-11-29 | 2011-04-13 | 成都中铁隆工程有限公司 | Method and structure for supporting weak surrounding rocks of tunnel |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
| CN103967508A (en) * | 2014-04-24 | 2014-08-06 | 西南交通大学 | Stretchable quick stress compensation type steel frame connection structure |
| CN104047619A (en) * | 2014-06-06 | 2014-09-17 | 中国水电顾问集团华东勘测设计研究院有限公司 | Steel grating lagging jack with adjustable size and construction method thereof |
| CN104329050A (en) * | 2014-09-29 | 2015-02-04 | 平顶山天安煤业股份有限公司 | Movable internal supporting crib ring for wall of well during backfill grouting |
| CN105888700A (en) * | 2016-06-16 | 2016-08-24 | 中交四航局第二工程有限公司 | Telescopic steel frame joint suitable for large tunnel deformation |
| CN106321118A (en) * | 2016-11-03 | 2017-01-11 | 四川奥特机械设备有限公司 | Assembled type tunnel supporting and protecting shed frame |
| CN112377220A (en) * | 2020-11-30 | 2021-02-19 | 华侨大学 | Deformation control device for tunnel with ultra-large section and use method |
| CN113846652A (en) * | 2021-11-15 | 2021-12-28 | 福建路港（集团）有限公司 | Adjustable prestress stainless steel pipe arch foundation pit supporting system |
-
2007
- 2007-04-27 CN CNU2007200508527U patent/CN201025038Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011597B (en) * | 2010-11-29 | 2012-05-23 | 成都中铁隆工程有限公司 | Method and structure for supporting weak surrounding rocks of tunnel |
| CN102011597A (en) * | 2010-11-29 | 2011-04-13 | 成都中铁隆工程有限公司 | Method and structure for supporting weak surrounding rocks of tunnel |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
| CN102505946B (en) * | 2011-11-21 | 2014-10-15 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
| CN103967508A (en) * | 2014-04-24 | 2014-08-06 | 西南交通大学 | Stretchable quick stress compensation type steel frame connection structure |
| CN104047619B (en) * | 2014-06-06 | 2016-10-05 | 中国水电顾问集团华东勘测设计研究院有限公司 | The steel grating bow member of size adjustable and construction method thereof |
| CN104047619A (en) * | 2014-06-06 | 2014-09-17 | 中国水电顾问集团华东勘测设计研究院有限公司 | Steel grating lagging jack with adjustable size and construction method thereof |
| CN104329050A (en) * | 2014-09-29 | 2015-02-04 | 平顶山天安煤业股份有限公司 | Movable internal supporting crib ring for wall of well during backfill grouting |
| CN105888700A (en) * | 2016-06-16 | 2016-08-24 | 中交四航局第二工程有限公司 | Telescopic steel frame joint suitable for large tunnel deformation |
| CN105888700B (en) * | 2016-06-16 | 2018-06-19 | 中交第四航务工程局有限公司 | A kind of scalable steelframe connector suitable for serious deformation |
| CN106321118A (en) * | 2016-11-03 | 2017-01-11 | 四川奥特机械设备有限公司 | Assembled type tunnel supporting and protecting shed frame |
| CN112377220A (en) * | 2020-11-30 | 2021-02-19 | 华侨大学 | Deformation control device for tunnel with ultra-large section and use method |
| CN113846652A (en) * | 2021-11-15 | 2021-12-28 | 福建路港（集团）有限公司 | Adjustable prestress stainless steel pipe arch foundation pit supporting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY 13TH BUREAU GROUP CO. Free format text: FORMER OWNER: HUI ZHONGHUA Effective date: 20080523 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080523 Address after: No. 2138, East Ling Road, two district, Jilin, Changchun: 130031 Patentee after: China Railway 13th Bureau Group Co., Ltd. Address before: Guangdong province Dongguan City Wanjiang total joint House Village East two lane five, No. 6, zip code: 523000 Patentee before: Hui Zhonghua |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100427 |