CN203050736U - Waterproof earth pressure balance rectangular jacking pipe joint for large-section motor vehicle tunnel - Google Patents
Waterproof earth pressure balance rectangular jacking pipe joint for large-section motor vehicle tunnel Download PDFInfo
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- CN203050736U CN203050736U CN 201320040962 CN201320040962U CN203050736U CN 203050736 U CN203050736 U CN 203050736U CN 201320040962 CN201320040962 CN 201320040962 CN 201320040962 U CN201320040962 U CN 201320040962U CN 203050736 U CN203050736 U CN 203050736U
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- waterproof
- tube coupling
- push pipe
- groove
- pipe joint
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Abstract
The utility model discloses a waterproof earth pressure balance rectangular jacking pipe joint for a large-section motor vehicle tunnel. The waterproof earth pressure balance rectangular jacking pipe joint is provided with two layers of waterproof structures. First layers of waterproof structures are arranged on two end portions of the jacking pipe joint. Embedded steel ring grooves and socket-and-spigot joint steel rings are arranged at the rear end of the circumferential surface of the jacking pipe joint. Water check steel rings are arranged on the pipe wall at the root portions of the socket-and-spigot joint steel rings. Two stepped grooves are adjacently arranged at the front end of the circumferential surface of the jacking pipe joint, and are respectively a waterproof setting groove and a socket-and-spigot groove from the front to the back. Waterproof protective steel rings are arranged in the waterproof setting groove at intervals. First water check strips are arranged in the waterproof setting groove and located outside the waterproof protective steel rings. The second layers of waterproof structures comprise annular cork wood base plates at the front end of the jacking pipe joint, rear annular grooves arranged in the rear end of the jacking pipe joint, and front annular grooves arranged in the front end of the jacking pipe joint. The jacking pipe joint achieves a permanent waterproof function, and greatly reduces operation and maintenance costs in the later stage.
Description
Technical field
The utility model relates to the underground engineering construction field, relates in particular to Rectangular Tunnel earth pressure balance push pipe tube coupling and job practices, can be applicable to down wear in the construction of tunnel earth pressure balance jacking construction of other structure such as town road, railway or river course.
Background technology
Latest developments to the research of earth pressure balance rectangular top pipe both at home and abroad are the municipal enforcement aspect of crossing street passage and walkway, subterranean commercial area.At present, the cross section of existing earth pressure balance rectangular top pipe is the less rectangle of size, and it has following defective: 1. the top of existing earth pressure balance rectangular top pipe is that the plane arranges, and four jiaos of places are right angle corner, and supporting capacity is little.2. along construction direction, metalworks such as socket joint steel loop in the waterproof construction of push pipe joint portion, front and back are being damaged because of corrosion after using all the year round easily, the waterproof construction of push pipe joint portion can not be as the permanent waterproof structure before and after causing, therefore the tunnel that utilizes existing earth pressure balance rectangular top pipe construction to form produces tube coupling section header drainage easily in the long-term back (20-30) of using, influence the normal use in tunnel, increase the later stage operation maintenance cost.Generally be no less than 100 years the projected life in tunnel, therefore in the tunnel in most of cycle in application life, and the puzzlement that the tunnel that utilizes existing earth pressure balance rectangular top pipe construction to form is safeguarded by waterproof all.Certainly, owing to the earth pressure balance rectangular top pipe just is being used widely in recent years, so drainage does not also display on a large scale.3. the mechanical structure of existing earth pressure balance rectangular top pipe has determined that its cross section is less, according to the requirement to tunnel machine motor-car lane width and limit for height of related specifications (urban road engineering design specifications CJJ37-2012), various places planning department, existing rectangular top pipe cross dimensions also is difficult to meet the demands.4. because existing rectangular top pipe tube coupling joint is flexible spigot-and-socket joint, easily produce the tube coupling dislocation when bearing vertical or side direction larger difference load for different tube couplings, cause that joint waterproofing lost efficacy, even the forfeiture function of use.5. the application of existing earth pressure balance rectangular top pipe is that municipal administration crosses street passage and walkway, subterranean commercial area, this type of tunnel has that length is short, no motor vehicle by thereby do not have an influence of unbalanced dynamic load.If existing big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling bears unbalanced dynamic load for a long time, the phenomenon that the push pipe tube coupling misplaces easily in then using for a long time.
In a word, the motor vehicle tunnel compare with underground pedestrian passageway have that section is big, earthing and vertical load is big, the longer characteristics in tunnel, present earth pressure balance rectangular top pipe can not solve the seepy question after the long-term use, can not guarantee between the push pipe tube coupling of long-term use back inconsistent phenomenon not to take place, can not apply to the motor vehicle tunnel.
Summary of the invention
The purpose of this utility model is to provide a kind of big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling.
For achieving the above object, big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling of the present utility model is provided with two-layer waterproof construction; The first floor waterproof construction is arranged on the both ends of push pipe tube coupling; Direction with the push pipe jacking is forward direction, the rear end of push pipe tube coupling circumferential surface is provided with the pre-buried steel annular groove, pre-buried steel annular groove place is connected with the socket joint steel loop, the tube wall at socket joint steel loop root place is provided with and the close-fitting sealing steel loop of socket joint steel loop, and the end radial depressions of pre-buried steel annular groove is provided with the fluid sealant preformed groove; The front end of push pipe tube coupling circumferential surface is adjacent to be provided with two step grooves, two step grooves are respectively that waterproof arranges groove and socket joint groove after by forward direction, waterproof arranges the groove external diameter less than socket joint groove external diameter, waterproof arranges and is interval with the waterproofing protection steel ring in the groove, waterproof beyond the waterproofing protection steel ring arranges and is provided with first sealing rod in the groove, and first sealing rod cooperates for pressing with the socket joint steel loop of adjacent push pipe tube coupling; The socket joint groove be used for adjacent push pipe tube coupling on the socket joint steel loop plug; Second layer waterproof construction comprises the annular cork backing plate that is connected push pipe tube coupling front end, the back cannelure of push pipe tube coupling rear end setting and the preceding cannelure that push pipe tube coupling front end arranges; The middle part of annular cork backing plate is provided with the backing plate cannelure, is provided with the back sealing rod in the back cannelure, is provided with preceding sealing rod in the preceding cannelure, backing plate cannelure and described back sealing rod and the described preceding corresponding setting of sealing rod.
The utlity model has following advantage:
In the two-layer waterproof construction of the present utility model, the first floor waterproof construction is located at the outer rim place of push pipe, has metal parts in its concrete structure, will be limited in 20-30 in application life of first floor waterproof construction.After the first floor waterproof construction damages, second layer waterproof construction will be brought into play its waterproof action.Owing to do not have metal parts in the second layer waterproof construction, rely on sealing rod to realize water-proof function, thereby its application life more than 100 years, can guarantee that the tunnel all has favorable waterproof property within its design service life.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view that removes Fig. 1 behind the socket joint steel loop;
Fig. 3 is the enlarged drawing at A place among Fig. 2;
Fig. 4 is the A-A sectional view of Fig. 1;
Fig. 5 is the structural representation at joints of segment place before and after the push pipe;
Fig. 6 is the enlarged drawing at B place among Fig. 5.
The specific embodiment
In the utility model, along the length of tunnel direction, be forward direction with the direction of push pipe jacking, on the contrary be the back to.
As Fig. 1 (direction of advance of push pipe when direction shown in the arrow is for construction among Fig. 2, Fig. 4 and Fig. 5) extremely shown in Figure 5, the utility model discloses a kind of big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling, described push pipe tube coupling circumferentially is interval with the injected hole 2 that radially connects tube wall in edge, outside wall surface middle part, the middle part of four faces of described push pipe tube coupling all is provided with two holes for hoist 1, and described push pipe tube coupling is anterior along circumferentially being interval with the radially thixotropic slurry mud jacking hole 4 that connects tube wall in outside wall surface.Thixotropic slurry mud jacking hole 4 is used for reducing the jacking resistance, is prior art, so does not do to amplify among the figure to show.The top of described push pipe tube coupling is arch, and the cross section of described tube coupling is all the circular arc chamfering structure for four jiao 21.
Big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling of the present utility model is provided with two-layer waterproof construction.
Extremely shown in Figure 6 as Fig. 1, the first floor waterproof construction is arranged on the both ends of push pipe tube coupling, the rear end of push pipe tube coupling circumferential surface is provided with pre-buried steel annular groove 5, pre-buried steel annular groove 5 places are connected with socket joint steel loop 8, the tube wall at socket joint steel loop 8 root places is provided with and socket joint steel loop 8 close-fitting sealing steel loops 9, and the end radial depressions of pre-buried steel annular groove 5 is provided with fluid sealant preformed groove 10.
Extremely shown in Figure 5 as Fig. 1, the front end of push pipe tube coupling circumferential surface is adjacent to be provided with two step grooves, two step grooves are respectively that waterproof arranges groove 7 and socket joint groove 6 after by forward direction, waterproof arranges the external diameter of groove 7 less than the external diameter of socket joint groove 6, waterproof arranges and is interval with waterproofing protection steel ring 11 in the groove 7, waterproof beyond the waterproofing protection steel ring 11 arranges and is provided with first sealing rod, 12, the first sealing rods 12 in the groove 7 and is used for pressing with the socket joint steel loop 8 of adjacent push pipe tube coupling and cooperates; Socket joint groove 6 be used for adjacent push pipe tube coupling on socket joint steel loop 8 plug.
As shown in Figure 6 and referring to figs. 1 to Fig. 5, the mode that second layer waterproof construction comprises pasting is connected the preceding cannelure 23 that the annular cork backing plate 15 of push pipe tube coupling front end, back cannelure 22 that push pipe tube coupling rear end arranges and push pipe tube coupling front end arrange.
The middle part of annular cork backing plate 15 is provided with backing plate cannelure 25, be provided with back sealing rod 13 in the mode of pasting in the back cannelure 22, be provided with preceding sealing rod 24 in the modes of pasting in the preceding cannelure 23, backing plate cannelure 25 and described back sealing rod 13 and described preceding sealing rod 24 corresponding settings, forward and backward sealing rod 24,13 phase crimping also all are positioned at backing plate cannelure 25 and forward and backward cannelure 23,22 cavitys that surround during use.
As depicted in figs. 1 and 2, along the length direction in tunnel, the interior circle axial prestress duct 3 that is circumferentially with along tube coupling of described push pipe tube coupling.
The top of push pipe tube coupling is arch in the utility model, the cross section of tube coupling is all the circular arc chamfering structure for four jiaos, compare the load-carrying properties that in the past strengthened the push pipe tube coupling greatly, thereby the size of push pipe tube coupling is strengthened, and then the dimensional requirement in adaline motor-car tunnel, especially be fit to be applied to width dimensions greater than all kinds of large cross-section tunnels constructions (the tube coupling cross dimensions reality through trial-production and test has reached 10.1x7.25m) greater than 4.5 meters of 8 meters, limit for height size.Certainly, the concrete size of push pipe tube coupling can be adjusted according to the characteristics in different tunnels in the utility model, preferred sizes is: tube coupling length 1.5m(rice), section out-to-out is 10.10m * 7.25m, the tube coupling characteristics are the top arch camber, inside and outside side corner sections arranges rounded corner, and suitable thickness of earth-fill cover has the water stratum between 4.0～8.0m, and anhydrous stratum is between 4.0～10.0m.
Push pipe tube coupling of the present utility model cooperates earth pressure balance rectangular top pipe development machine to use, at first make mould according to the tube coupling section, colligation tube coupling reinforcing bar, and hole for hoist 1(referred to preprepared hole for hoist 1 hole pipe herein, following injected hole, prestressed pore passage 3 and thixotropic slurry mud jacking hole 4 indications are all preprepared respective line), injected hole, prestressed pore passage 3, thixotropic slurry mud jacking hole 4, socket joint steel loop 8, sealing steel loop 9, waterproofing protection steel ring 11 fix at mould, wherein socket joint steel loop 8 is arranged on pre-buried steel annular groove 5 places; Fluid concrete and maintenance reach stripping after the design strength.
The invention also discloses the job practices of above-mentioned big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling, this method in turn includes the following steps:
The firstth, transport the push pipe tube coupling to the job site;
The secondth, before lifting, first sealing rod 12 is sticked on waterproof groove 7 places are set, use fluid sealant that fluid sealant preformed groove 10 is carried out encapsulation process; Cork backing plate 15 is sticked on the front end side wall of jacking tube coupling, forward and backward sealing rod 24,13 is sticked on respectively in preceding cannelure 23 and the back cannelure 22;
The 3rd is that the lifting tube coupling is in place, and the tube coupling placement direction is that socket joint groove 6 is positioned at the jacking rear, and socket joint steel loop 8 is positioned at jacking the place ahead;
The 4th is jacking construction;
The 5th is to use prestress wire to pass fixedly tube coupling of prestressed pore passage 3 stretch-draw after jacking construction finishes, and carries out filleting with 14 pairs of joints of fluid sealant radially inner side seam at last and handles.
Claims (1)
1. big section motor vehicle tunnel water proofing type earth pressure balance rectangular top pipe tube coupling, it is characterized in that: this push pipe tube coupling is provided with two-layer waterproof construction;
The first floor waterproof construction is arranged on the both ends of push pipe tube coupling; Direction with the push pipe jacking is forward direction, the rear end of push pipe tube coupling circumferential surface is provided with the pre-buried steel annular groove, pre-buried steel annular groove place is connected with the socket joint steel loop, the tube wall at socket joint steel loop root place is provided with and the close-fitting sealing steel loop of socket joint steel loop, and the end radial depressions of pre-buried steel annular groove is provided with the fluid sealant preformed groove;
The front end of push pipe tube coupling circumferential surface is adjacent to be provided with two step grooves, two step grooves are respectively that waterproof arranges groove and socket joint groove after by forward direction, waterproof arranges the groove external diameter less than socket joint groove external diameter, waterproof arranges and is interval with the waterproofing protection steel ring in the groove, waterproof beyond the waterproofing protection steel ring arranges and is provided with first sealing rod in the groove, and first sealing rod cooperates for pressing with the socket joint steel loop of adjacent push pipe tube coupling; The socket joint groove be used for adjacent push pipe tube coupling on the socket joint steel loop plug;
Second layer waterproof construction comprises the annular cork backing plate that is connected push pipe tube coupling front end, the back cannelure of push pipe tube coupling rear end setting and the preceding cannelure that push pipe tube coupling front end arranges;
The middle part of annular cork backing plate is provided with the backing plate cannelure, is provided with the back sealing rod in the back cannelure, is provided with preceding sealing rod in the preceding cannelure, backing plate cannelure and described back sealing rod and the described preceding corresponding setting of sealing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040962 CN203050736U (en) | 2013-01-25 | 2013-01-25 | Waterproof earth pressure balance rectangular jacking pipe joint for large-section motor vehicle tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040962 CN203050736U (en) | 2013-01-25 | 2013-01-25 | Waterproof earth pressure balance rectangular jacking pipe joint for large-section motor vehicle tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050736U true CN203050736U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040962 Expired - Fee Related CN203050736U (en) | 2013-01-25 | 2013-01-25 | Waterproof earth pressure balance rectangular jacking pipe joint for large-section motor vehicle tunnel |
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| CN (1) | CN203050736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061782A (en) * | 2013-01-28 | 2013-04-24 | 中铁隧道勘测设计院有限公司 | Large-section earth pressure balancing rectangular jacking pipe joint of motor vehicle tunnel and method for constructing large-section earth pressure balancing rectangular jacking pipe |
| CN109026083A (en) * | 2018-10-22 | 2018-12-18 | 中铁隧道局集团有限公司 | Big cross section rectangle pipe jacking tube coupling waterproof construction |
| CN110685712A (en) * | 2019-10-12 | 2020-01-14 | 北京中岩智泊科技有限公司 | Rectangular pipe jacking pipe joint capable of being assembled |
-
2013
- 2013-01-25 CN CN 201320040962 patent/CN203050736U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061782A (en) * | 2013-01-28 | 2013-04-24 | 中铁隧道勘测设计院有限公司 | Large-section earth pressure balancing rectangular jacking pipe joint of motor vehicle tunnel and method for constructing large-section earth pressure balancing rectangular jacking pipe |
| CN103061782B (en) * | 2013-01-28 | 2015-04-15 | 中铁隧道勘测设计院有限公司 | Large-section earth pressure balancing rectangular jacking pipe joint of motor vehicle tunnel and method for constructing large-section earth pressure balancing rectangular jacking pipe |
| CN109026083A (en) * | 2018-10-22 | 2018-12-18 | 中铁隧道局集团有限公司 | Big cross section rectangle pipe jacking tube coupling waterproof construction |
| CN110685712A (en) * | 2019-10-12 | 2020-01-14 | 北京中岩智泊科技有限公司 | Rectangular pipe jacking pipe joint capable of being assembled |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180615 Address after: 300000 Tianjin free trade zone (Airport Economic Zone), 21-316 South Road 88. Patentee after: CHINA RAILWAY LIUYUAN GROUP Co.,Ltd. Address before: 300132 Tianjin Hongqiao District Bridge South East Railway Tunnel hospital Patentee before: CHINA RAILWAY TUNNEL SURVEY & DESIGN INSTITUTE Co.,Ltd. |
|
| 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: 20130710 Termination date: 20220125 |