CN105422131A - Longitudinal tensioning device for shield segment and using method of longitudinal tensioning device - Google Patents
Longitudinal tensioning device for shield segment and using method of longitudinal tensioning device Download PDFInfo
- Publication number
- CN105422131A CN105422131A CN201511002868.6A CN201511002868A CN105422131A CN 105422131 A CN105422131 A CN 105422131A CN 201511002868 A CN201511002868 A CN 201511002868A CN 105422131 A CN105422131 A CN 105422131A
- Authority
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- China
- Prior art keywords
- steel strand
- duct piece
- shield duct
- anchor
- clip type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 1
- 230000008676 import Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a longitudinal tensioning device for a shield segment and a using method of the longitudinal tensioning device. The proposed longitudinal tensioning device for the shield segment has the advantages of small size, light weight, convenience in mounting and dismounting and the like and is capable of providing a precise and reliable tension force through the tensioning of a steel strand and stable in tension force. When the shield segment is longitudinally tensioned by using the longitudinal tensioning device, the shield segment at a hole entering or exiting section can be effectively and reliably tensioned, the sealing and waterproof effects of the shield segment can be ensured, and the problems of shield segment looseness, water leakage and the like easily caused at the hole entering or exiting section can be avoided.
Description
Technical field
The present invention relates to Metro Tunnel technical field of construction, particularly relate to a kind of device for the longitudinal tension of shield duct piece and using method thereof.
Background technology
With shield machine carry out tunnel construction have automaticity high, save that manpower, speed of application are fast, cavitation, weatherproof, excavation time controllably face sedimentation, reduce on the impact of above ground structure and under water excavation time do not affect the features such as water surface traffic,, buried depth longer at the hole line of tunnel is larger, with shield machine construction more economical rationality.
In shield machine export & import process, support and enter hole segment pipe sheet and can relax owing to going out hole segment pipe sheet losing backing section of jurisdiction after losing shield structure thrust and cause section of jurisdiction circumferential weld to open, affect sealed waterproof effect, and then tunnel structure or surrounding enviroment are had a negative impact, so need to arrange shield duct piece take-up device in export & import section and carry out longitudinal tension to many endless tubes sheet, and remain to portal cast-in-situ steel reinforced concrete and reach design strength.
The longitudinal tension method of existing shield duct piece has channel-section steel to strain and wire rope tension, and its weak point is: channel-section steel tension is mechanical position limitation, and can only play the effect of longitudinal drawknot, tightening force is limited, is difficult to tension; And wire rope tension relies on the feel of operator completely, tightening force is uncertain and uneven, and longitudinal tension effect is also limited.
Summary of the invention
The object of the present invention is to provide a kind of device for the longitudinal tension of shield duct piece and using method thereof, can the problems referred to above be avoided, improve longitudinal tension effect.
To achieve these goals, the present invention proposes a kind of device longitudinally strained for shield duct piece, comprising:
Fastener, underframe, steel strand, draw-gear and holdout device, wherein, described fastener one end is fixed on described shield duct piece, described draw-gear and holdout device are all fixed on described underframe, one end of described steel strand is fixed on described fastener, the other end is fixed on described draw-gear through described holdout device, described draw-gear pulls described fastener by steel strand, realize carrying out tension process to shield duct piece, described holdout device can fix described steel strand, maintains the tightening force provided shield duct piece.
Further, in the described device longitudinally strained for shield duct piece, described fastener comprises lifting bolt, drawing head and end anchor, wherein, described drawing head and end anchor fix, described drawing head is fixed on described shield duct piece by hex bolts and lifting bolt, and one end of described steel strand is passed anchor of the described end and is fixed on described drawing head.
Further, in the described device for the longitudinal tension of shield duct piece, described draw-gear comprises front clip type jack, rear anchor and tight anchors, and described steel strand and described rear anchor and tightly anchors are all fixed on described front clip type jack.
Further, in the described device longitudinally strained for shield duct piece, described holdout device comprises front anchor, and described steel strand are connected with front clip type jack through described front anchor.
Further, in the described device for the longitudinal tension of shield duct piece, also comprise discharge mechanism, described discharge mechanism comprises a jacking block and unloads anchor bolt, described in unload anchor bolt and described jacking block and described front anchor with the use of.
The invention allows for a kind of using method of longitudinal take-up device, use the device longitudinally strained for shield duct piece as described above, comprise step:
Use draw-gear traction steel strand, by fastener for shield duct piece provides tightening force;
Use holdout device to fix described steel strand, make described steel strand by fastener for shield duct piece continues to provide tightening force.
Further, in the using method of described longitudinal take-up device, described draw-gear comprises front clip type jack, rear anchor and tight anchors, fuel feeding is carried out to described front clip type jack, described front clip type jack is made to stretch cylinder, steel strand are compressed by rear anchor, and steel strand are stretched cylinder with front clip type jack and are tightened up.
Further, in the using method of described longitudinal take-up device, described tightening force is regulated by the oil supply pressure of front clip type jack.
Further, in the using method of described longitudinal take-up device, walk completely at described front clip type jack stroke, unscrew tight anchors, steel strand are maintained device and compress, and make front clip type jack contracting cylinder, after contracting cylinder puts in place, tight anchors is screwed, continues to do and stretch cylinder action, until steel strand reach setting tightening force.
Further, in the using method of described longitudinal take-up device, after unscrewing tight anchors, install a jacking block and unload anchor bolt, screwing and unload anchor bolt, a jacking block withstands described holdout device, steel strand is relaxed, dismantles all devices.
Compared with prior art, beneficial effect of the present invention is mainly reflected in: it is little, lightweight that the device for the longitudinal tension of shield duct piece of proposition has volume, the advantages such as installation, convenient disassembly, can provide accurately tightening force reliably by steel strand tension, and tightening force is stablized.By the present invention, longitudinal tension is carried out to shield duct piece, export & import section shield duct piece can be strained effectively reliably, guarantee section of jurisdiction sealed waterproof effect, the section of jurisdiction avoiding export & import section easily to occur is lax, the problem such as percolating water.
Accompanying drawing explanation
Fig. 1 is the lateral view for the device of the longitudinal tension of shield duct piece in one embodiment of the invention;
Fig. 2 is the top view for the device of the longitudinal tension of shield duct piece in one embodiment of the invention;
Fig. 3 is the detonation configuration schematic diagram for the device of the longitudinal tension of shield duct piece in one embodiment of the invention.
Detailed description of the invention
Below in conjunction with schematic diagram, the device for the longitudinal tension of shield duct piece of the present invention and using method thereof are described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here, and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the present invention chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
In the following passage, more specifically the present invention is described by way of example with reference to accompanying drawing.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1 to Fig. 3, in the present embodiment, propose a kind of device longitudinally strained for shield duct piece, comprise: fastener, underframe 1, steel strand 7, draw-gear and holdout device, wherein, described fastener one end is fixed on shield duct piece, described draw-gear and holdout device are all fixed on described underframe 1, one end of described steel strand 7 is fixed on described fastener, the other end is fixed on described draw-gear through described holdout device, described draw-gear pulls described fastener by steel strand 7, realize carrying out tension process to shield duct piece, described holdout device can fix described steel strand 7, maintain the tightening force that shield duct piece is provided.
Concrete, in the present embodiment, described fastener comprises lifting bolt 4, drawing head 5 and end anchor 6, wherein, described drawing head 4 fixes with end anchor 6, described drawing head 5 is fixed on described shield duct piece by hex bolts 8 and lifting bolt 4, and one end of described steel strand 7 is passed anchor of the described end 6 and is fixed on described drawing head 5.
Described draw-gear comprises front clip type jack 2, rear anchor 9 and tight anchors 10, and described steel strand 7 are all fixed on described front clip type jack 2 with described rear anchor 9 and tight anchors 10.
Described holdout device comprises front anchor 3, and described steel strand 7 are connected with front clip type jack 2 through described front anchor 3.The described device for the longitudinal tension of shield duct piece also comprises discharge mechanism, and described discharge mechanism comprises a jacking block 11 and unloads anchor bolt 12, described in unload anchor bolt 12 and described jacking block 11 and described front anchor 3 with the use of.
When mounted, underframe 1 can be fixed on shield duct piece by the lifting bolt 4 of shield duct piece, clip type jack 2 before underframe 1 is installed, by lifting bolt 4, hex bolts 8, drawing head 5 is arranged on the shield duct piece of the termination that will strain, end anchor 6 is installed simultaneously, in the middle of end anchor 6 with front clip type jack 2, connect steel strand 7, front anchor 3, rear anchor 9, tight anchors 10 are installed, now this device installation when connecting steel strand 7.
In the present embodiment, also proposed the using method of above-mentioned take-up device, comprise step:
Use draw-gear traction steel strand, by fastener for shield duct piece provides tightening force;
Use holdout device to fix described steel strand, make described steel strand by fastener for shield duct piece continues to provide tightening force.
Concrete, when straining, can be front clip type jack 2 fuel feeding, make front clip type jack 2 stretch cylinder, now steel strand 7 are compressed by rear anchor 9, and front anchor 3 relaxes, steel strand 7 are stretched cylinder with front clip type jack 2 and strain, and tightening force can be regulated by the oil supply pressure of front clip type jack 2.
Then, front clip type jack 2 stroke is walked completely, and unscrew tight anchors 10, now steel strand 7 are compressed by front anchor 3, make front clip type jack 2 contracting cylinder again, after contracting cylinder puts in place, tight anchors 10 is screwed, continue to do and stretch cylinder action, repeatedly so, until steel strand 7 reach setting stretching force.
When dismantling, after unscrewing tight anchors 10, a jacking block 11 being installed and unloading anchor bolt 12, slowly screwing and unload anchor bolt 12, until steel strand 7 relax, thus dismantling all devices.
To sum up, the embodiment of the present invention provide in the shield duct piece longitudinally device of tension and using method thereof, it is little that the device for the longitudinal tension of shield duct piece proposed has volume, lightweight, the advantages such as installation, convenient disassembly, can provide accurately tightening force reliably by steel strand tension, and tightening force is stablized.By the present invention, longitudinal tension is carried out to shield duct piece, export & import section shield duct piece can be strained effectively reliably, guarantee section of jurisdiction sealed waterproof effect, the section of jurisdiction avoiding export & import section easily to occur is lax, the problem such as percolating water.
Above are only the preferred embodiments of the present invention, any restriction is not played to the present invention.Any person of ordinary skill in the field; in the scope not departing from technical scheme of the present invention; the technical scheme disclose the present invention and technology contents make the variations such as any type of equivalent replacement or amendment; all belong to the content not departing from technical scheme of the present invention, still belong within protection scope of the present invention.
Claims (10)
1. the device longitudinally strained for shield duct piece, it is characterized in that, comprise: fastener, underframe, steel strand, draw-gear and holdout device, wherein, described fastener one end is fixed on shield duct piece, described draw-gear and holdout device are all fixed on described underframe, one end of described steel strand is fixed on described fastener, the other end is fixed on described draw-gear through described holdout device, described draw-gear pulls described fastener by steel strand, realize carrying out tension process to shield duct piece, described holdout device can fix described steel strand, maintain the tightening force that shield duct piece is provided.
2. as claimed in claim 1 for the device of the longitudinal tension of shield duct piece, it is characterized in that, described fastener comprises lifting bolt, drawing head and end anchor, wherein, described drawing head and end anchor fix, described drawing head is fixed on described shield duct piece by hex bolts and lifting bolt, and one end of described steel strand is passed anchor of the described end and is fixed on described drawing head.
3. as claimed in claim 1 for the device of the longitudinal tension of shield duct piece, it is characterized in that, described draw-gear comprises front clip type jack, rear anchor and tight anchors, and described steel strand and described rear anchor and tightly anchors are all fixed on described front clip type jack.
4. as claimed in claim 3 for the device that shield duct piece is longitudinally strained, it is characterized in that, described holdout device comprises front anchor, and described steel strand are connected with front clip type jack through described front anchor.
5., as claimed in claim 4 for the device of the longitudinal tension of shield duct piece, it is characterized in that, also comprise discharge mechanism, described discharge mechanism comprises a jacking block and unloads anchor bolt, described in unload anchor bolt and described jacking block and described front anchor with the use of.
6. a using method for longitudinal take-up device, uses the device longitudinally strained for shield duct piece according to any one of following claims 1 to 5, it is characterized in that, comprise step:
Use draw-gear traction steel strand, by fastener for shield duct piece provides tightening force;
Use holdout device to fix described steel strand, make described steel strand by fastener for shield duct piece continues to provide tightening force.
7. the using method of longitudinal take-up device as claimed in claim 6, it is characterized in that, described draw-gear comprises front clip type jack, rear anchor and tight anchors, fuel feeding is carried out to described front clip type jack, described front clip type jack is made to stretch cylinder, steel strand are compressed by rear anchor, and steel strand are stretched cylinder with front clip type jack and are tightened up.
8. the using method of longitudinal take-up device as claimed in claim 7, is characterized in that, described tightening force is regulated by the oil supply pressure of front clip type jack.
9. the using method of longitudinal take-up device as claimed in claim 7, it is characterized in that, walk completely at described front clip type jack stroke, unscrew tight anchors, steel strand are maintained device and compress, and make front clip type jack contracting cylinder, after contracting cylinder puts in place, tight anchors is screwed, continues to do and stretch cylinder action, until steel strand reach setting tightening force.
10. the using method of longitudinal take-up device as claimed in claim 6, is characterized in that, after unscrewing tight anchors, install a jacking block and unload anchor bolt, screwing and unload anchor bolt, a jacking block withstands described holdout device, steel strand is relaxed, dismantles all devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002868.6A CN105422131B (en) | 2015-12-28 | 2015-12-28 | The device and its application method longitudinally tensed for shield duct piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002868.6A CN105422131B (en) | 2015-12-28 | 2015-12-28 | The device and its application method longitudinally tensed for shield duct piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422131A true CN105422131A (en) | 2016-03-23 |
| CN105422131B CN105422131B (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002868.6A Active CN105422131B (en) | 2015-12-28 | 2015-12-28 | The device and its application method longitudinally tensed for shield duct piece |
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| CN (1) | CN105422131B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041988A (en) * | 1988-10-15 | 1990-05-09 | 卢锡焕 | Protect the strong pre-power reaming of earth anchor earth anchor worker's method and detection ground rock anchor pulling force and repeat to execute the device that draws pre-power |
| DE9017672U1 (en) * | 1990-12-06 | 1991-07-04 | Bauer Spezialtiefbau Gmbh, 8898 Schrobenhausen, De | |
| JPH08291700A (en) * | 1995-04-20 | 1996-11-05 | Kajima Corp | Shield segment |
| JP2002106297A (en) * | 2000-10-02 | 2002-04-10 | Sumitomo Heavy Ind Ltd | Mounting device for segment wire tensioning jack in shield machine |
| CN1424465A (en) * | 2003-01-08 | 2003-06-18 | 柳州市威尔姆预应力有限公司 | Low stressed self anchoring method for group anchor steel tension cables |
| CN2652905Y (en) * | 2003-06-10 | 2004-11-03 | 焦金太 | Prestress hydraulic pre-press anti-rotary front clamp type jack |
| JP2004360399A (en) * | 2003-06-06 | 2004-12-24 | Sumiken Concrete Kogyo Kk | Concrete member |
| CN2666876Y (en) * | 2003-12-18 | 2004-12-29 | 柳州欧维姆机械股份有限公司 | Stretching jack with spacing device |
| KR20100043157A (en) * | 2010-03-08 | 2010-04-28 | 성균관대학교산학협력단 | Tensioning apparatus for steel wire rope |
| CN102953549A (en) * | 2011-08-30 | 2013-03-06 | 中铁十局集团有限公司 | Novel quick tensioning construction method for front-blocked jack |
| CN104264593A (en) * | 2014-09-05 | 2015-01-07 | 华侨大学 | Surface embedded bar reinforced prestress tension method and device |
| CN205277436U (en) * | 2015-12-28 | 2016-06-01 | 上海市机械施工集团有限公司 | A device that is used for shield structure section of jurisdiction vertically taut |
-
2015
- 2015-12-28 CN CN201511002868.6A patent/CN105422131B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041988A (en) * | 1988-10-15 | 1990-05-09 | 卢锡焕 | Protect the strong pre-power reaming of earth anchor earth anchor worker's method and detection ground rock anchor pulling force and repeat to execute the device that draws pre-power |
| DE9017672U1 (en) * | 1990-12-06 | 1991-07-04 | Bauer Spezialtiefbau Gmbh, 8898 Schrobenhausen, De | |
| JPH08291700A (en) * | 1995-04-20 | 1996-11-05 | Kajima Corp | Shield segment |
| JP2002106297A (en) * | 2000-10-02 | 2002-04-10 | Sumitomo Heavy Ind Ltd | Mounting device for segment wire tensioning jack in shield machine |
| CN1424465A (en) * | 2003-01-08 | 2003-06-18 | 柳州市威尔姆预应力有限公司 | Low stressed self anchoring method for group anchor steel tension cables |
| JP2004360399A (en) * | 2003-06-06 | 2004-12-24 | Sumiken Concrete Kogyo Kk | Concrete member |
| CN2652905Y (en) * | 2003-06-10 | 2004-11-03 | 焦金太 | Prestress hydraulic pre-press anti-rotary front clamp type jack |
| CN2666876Y (en) * | 2003-12-18 | 2004-12-29 | 柳州欧维姆机械股份有限公司 | Stretching jack with spacing device |
| KR20100043157A (en) * | 2010-03-08 | 2010-04-28 | 성균관대학교산학협력단 | Tensioning apparatus for steel wire rope |
| CN102953549A (en) * | 2011-08-30 | 2013-03-06 | 中铁十局集团有限公司 | Novel quick tensioning construction method for front-blocked jack |
| CN104264593A (en) * | 2014-09-05 | 2015-01-07 | 华侨大学 | Surface embedded bar reinforced prestress tension method and device |
| CN205277436U (en) * | 2015-12-28 | 2016-06-01 | 上海市机械施工集团有限公司 | A device that is used for shield structure section of jurisdiction vertically taut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422131B (en) | 2018-07-06 |
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