CN207315411U - The first branch structure of straight median septum under song on two side-wall pilot tunnel bored tunnel - Google Patents
The first branch structure of straight median septum under song on two side-wall pilot tunnel bored tunnel Download PDFInfo
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- CN207315411U CN207315411U CN201721342938.7U CN201721342938U CN207315411U CN 207315411 U CN207315411 U CN 207315411U CN 201721342938 U CN201721342938 U CN 201721342938U CN 207315411 U CN207315411 U CN 207315411U
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- steel
- median septum
- tunnel
- pilot tunnel
- arch
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 239000011378 shotcrete Substances 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 6
- 230000008093 supporting effect Effects 0.000 claims abstract description 6
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 17
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses branch structure at the beginning of straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel, including steel grating, I-steel, steel arch-shelf, connecting plate and concrete；The first branch even structure is arranged on tunnel Longitudinal extending direction；Steel arch-shelfAdd gunite concrete median septum, steel arch-shelfAdd the interim inverted arch of gunite concrete；Median septum uses the support form of upper curve lower part straight line, selects steel grating to carry out top median septumSupporting erection and barrel supporting, using I-steel as lower part median septumSkeleton is set up, and junction, as connecting plate, preliminary bracing system is collectively forming with gunite concrete using steel plate.The utility model can reduce reinforcing bar it is curved cut with welding job amount, improve construction efficiency, reduce support replacement process, effectively shorten the construction period, reduce trolley volume, easy to construct, at the same reduce the soil disturbance caused by construction period is long, it is ensured that construction safety.
Description
Technical field
Bored tunnel field is the utility model is related to, at the beginning of particularly a kind of bored tunnel based on two side-wall pilot tunnel construction
Branch structure.
Background technology
For the bored tunnel of two side-wall pilot tunnel construction, the excavation carried out especially in Urban underground Tunnel, over the ground
The sedimentation of table with construction built up, the excavation of lower pilot tunnel is carried out after top heading excavation to certain distance, under lead
Construction of the excavation in hole to upper pilot tunnel has a certain impact, when existing lower pilot drive support pattern causes lower pilot drive supporting
Between it is long, influence overall construction speed.
Do not increasing to carry out the engineering method that can accelerate construction progress again of soil disturbance increase settling amount gram it would therefore be desirable to have a kind of
Clothes mitigate drawbacks described above.
The content of the invention
The utility model is in view of the deficiencies of the prior art, there is provided straight interval under song on a kind of two side-wall pilot tunnel bored tunnel
The first branch structure of wall.
To achieve these goals, the utility model employs following technical scheme：
Straight median septum just branch structure, including steel grating, I-steel, steel arch under song on a kind of two side-wall pilot tunnel bored tunnel
Frame, connecting plate and concrete；The first branch even structure is arranged on tunnel Longitudinal extending direction；The steel grating is arranged on
Upper mid-board internal face and upper pilot tunnel internal face, the steel grating set on upper mid-board internal face add gunite concrete to form two
Side median septum, the steel grating that is set on upper pilot tunnel internal face adds pneumatically placed concrete to form barrel supporting；The steel arch-shelfIf
The pilot tunnel bottom on being arranged on is put, the steel arch-shelf set on upper pilot tunnel bottomGunite concrete is added to form median septum；It is described
Steel arch-shelfLower pilot tunnel internal face is arranged on, the steel arch-shelf set on lower pilot tunnel internal faceAdd gunite concrete to be formed to face
When inverted arch；The I-steel is arranged on lower mid-board internal face, and the I-steel set on lower mid-board internal face adds spray mixed
Solidifying soil forms both sides median septum；The I-steel, steel grating, the junction of steel arch-shelf are connected by connecting plate；Described
Median septumCurve support form is presented；The median septumStraight line support form is presented.
As the further explanation of the utility model, the I-steel uses work 25a I-steel.
As the further explanation of the utility model, the material that the connecting plate uses is steel plate.
As the further explanation of the utility model, the both sides median septumBetween form shape space wide at the top and narrow at the bottom.
As the further explanation of the utility model, the both sides median septumBetween form wide space up and down.
The utility model has the following advantages：
1. reduce reinforcing bar it is curved cut with welding job amount, using the I-steel of canonical form, improve construction efficiency, effectively contracting
Casual labourer's phase.
2. be not required to remove steel skeleton when inverted arch pours, avoid the occurrence of because tearing excessive, the reduction support replacement process that overhangs existing sedimentation open,
Reduce the destruction to preliminary bracing system, it is ensured that construction safety.
3. the interim inverted arch of joint, provides operation side for the lining construction of arch two, reduces trolley volume, easy to construct, carry
High workload efficiency.
4. reducing the bored tunnel construction period using two side-wall pilot tunnel, production efficiency is improved, while reduce because of construction
Soil disturbance caused by excessive cycle.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model.
Reference numeral：1- median septums, 2- median septums, 3- median septums, 4- connecting plates, 5- barrel supportings, 6- inverted arch.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Embodiment 1：
Straight median septum just branch structure, including steel grating, I-steel, steel arch under song on a kind of two side-wall pilot tunnel bored tunnel
Frame, connecting plate 4 and concrete；The first branch even structure is arranged on tunnel Longitudinal extending direction；The steel grating is set
In upper mid-board internal face and upper pilot tunnel internal face, the steel grating set on upper mid-board internal face adds gunite concrete to be formed
Both sides median septum1, the steel grating set on upper pilot tunnel internal face adds pneumatically placed concrete to form barrel supporting 5；The steel arch-shelfPilot tunnel bottom is arranged on, the steel arch-shelf set on upper pilot tunnel bottomGunite concrete is added to form median septum2；
The steel arch-shelfLower pilot tunnel internal face is arranged on, the steel arch-shelf set on lower pilot tunnel internal faceAdd gunite concrete shape
Into interim inverted arch 6；The I-steel is arranged on lower mid-board internal face, and the I-steel set on lower mid-board internal face adds
Pneumatically placed concrete forms both sides median septum3；The I-steel, steel grating, the junction of steel arch-shelf are connected by connecting plate 4；
The median septum1 is presented curve support form；The median septum3 are presented straight line support form.
The I-steel uses work 25a I-steel.
The material that the connecting plate 4 uses is steel plate.
The both sides median septumShape space wide at the top and narrow at the bottom is formed between 1.
The both sides median septumSpace wide up and down is formed between 3.
The construction technology of the utility model, Specific construction flow step sequence are：
Preliminary bracing, median septum are carried out after the completion of top heading excavation1 adds gunite concrete to construct using steel grating,
Steel arch-shelfReserve and lower pilot tunnel median septum lower part3 connecting portions.
Lower pilot drive is excavated using benching tunnelling method, is excavated Internal periphery and is used stalk form, in being carried out using work 25a I-steel
Next door3 skeletal supports, with upper pilot tunnel median septum1 is attached using steel connecting plate 4, median septumI-steel connects in 3
It is attached using connecting plate 4, gunite concrete forms just branch median septum system.
When inverted arch 6 is laid with, concrete between I-steel is abolished, reinforcing bar binding is carried out, runs into reinforcing bar and conflict with I-steel position
When, it can be passed through in I-steel belly jewel hole.Pay attention to the uncured waterproof material of rubber asphalt and applying at EVA splash guard lap joints
Work quality control, pre-buried good Grouting Pipe.Top median septum1 is removed before carrying out the lining of arch two and pouring, lower part median septum3 are removed after the completion of two linings perform, and the cutting of steel skeleton is carried out from 6 surface of inverted arch.
Claims (5)
1. just branch structure, the first branch even structure are arranged on straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel
Tunnel Longitudinal extending direction；It is characterized in that：Including steel grating, I-steel, steel arch-shelf, steel arch-shelf, connecting plate（4）With it is mixed
Solidifying soil；The steel grating is arranged on mid-board internal face and upper pilot tunnel internal face, is set on upper mid-board internal face
Steel grating adds gunite concrete to form median septum（1）, the steel grating that is set on upper pilot tunnel internal face adds pneumatically placed concrete to form hole
Body supporting（5）；The steel arch-shelfPilot tunnel bottom is arranged on, the steel arch-shelf set on upper pilot tunnel bottomAdd injection coagulation
Soil forms median septum（2）；The steel arch-shelfLower pilot tunnel internal face is arranged on, the steel arch set on lower pilot tunnel internal face
FrameGunite concrete is added to form interim inverted arch（6）；The I-steel is arranged on lower mid-board internal face, in lower mid-board
The I-steel set on wall adds pneumatically placed concrete to form median septum（3）；The I-steel, steel grating, steel arch-shelf, steel arch
FrameBetween junction pass through connecting plate（4）Connection；The median septum（1）Curve support form is presented；The interval
Wall（3）Straight line support form is presented.
2. the first branch structure of straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel according to claim 1, it is special
Sign is：The I-steel uses work 25a I-steel.
3. the first branch structure of straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel according to claim 1, it is special
Sign is：The connecting plate（4）Using steel plate.
4. the first branch structure of straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel according to claim 1, it is special
Sign is：The median septum of the upper mid-board both sides（1）Between form shape space wide at the top and narrow at the bottom.
5. the first branch structure of straight median septum under song on a kind of two side-wall pilot tunnel bored tunnel according to claim 1, it is special
Sign is：The median septum of the lower mid-board both sides（3）Between form wide space up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721342938.7U CN207315411U (en) | 2017-10-18 | 2017-10-18 | The first branch structure of straight median septum under song on two side-wall pilot tunnel bored tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721342938.7U CN207315411U (en) | 2017-10-18 | 2017-10-18 | The first branch structure of straight median septum under song on two side-wall pilot tunnel bored tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315411U true CN207315411U (en) | 2018-05-04 |
Family
ID=62381763
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721342938.7U Expired - Fee Related CN207315411U (en) | 2017-10-18 | 2017-10-18 | The first branch structure of straight median septum under song on two side-wall pilot tunnel bored tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207315411U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751063A (en) * | 2019-02-26 | 2019-05-14 | 中铁第四勘察设计院集团有限公司 | A kind of large section tunnel supporting construction and its construction method |
| CN109973100A (en) * | 2019-05-21 | 2019-07-05 | 中铁第六勘察设计院集团有限公司 | A kind of support form that realizing Tunneling by mining method minor-circle turn and construction method |
| CN110566228A (en) * | 2019-09-24 | 2019-12-13 | 中铁第六勘察设计院集团有限公司 | tunnel middle partition wall with repeated jacking and locking functions and construction method thereof |
| CN110863841A (en) * | 2019-11-29 | 2020-03-06 | 中交第二航务工程局有限公司 | Two-lining three-step construction method for large-span shallow-buried underground excavation tunnel |
| CN111828051A (en) * | 2020-07-28 | 2020-10-27 | 中建七局安装工程有限公司 | Construction method of two-lining middle partition wall injection tunnel with support |
| CN112253139A (en) * | 2020-11-03 | 2021-01-22 | 中铁隆工程集团有限公司 | Construction method for channel range main hole excavation flow |
-
2017
- 2017-10-18 CN CN201721342938.7U patent/CN207315411U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751063A (en) * | 2019-02-26 | 2019-05-14 | 中铁第四勘察设计院集团有限公司 | A kind of large section tunnel supporting construction and its construction method |
| CN109973100A (en) * | 2019-05-21 | 2019-07-05 | 中铁第六勘察设计院集团有限公司 | A kind of support form that realizing Tunneling by mining method minor-circle turn and construction method |
| CN109973100B (en) * | 2019-05-21 | 2024-02-09 | 中铁第六勘察设计院集团有限公司 | Supporting form for realizing small-radius turning of tunnel by mining method and construction method |
| CN110566228A (en) * | 2019-09-24 | 2019-12-13 | 中铁第六勘察设计院集团有限公司 | tunnel middle partition wall with repeated jacking and locking functions and construction method thereof |
| CN110566228B (en) * | 2019-09-24 | 2024-02-09 | 中铁第六勘察设计院集团有限公司 | Tunnel middle partition wall with repeated supporting and locking functions and construction method thereof |
| CN110863841A (en) * | 2019-11-29 | 2020-03-06 | 中交第二航务工程局有限公司 | Two-lining three-step construction method for large-span shallow-buried underground excavation tunnel |
| CN111828051A (en) * | 2020-07-28 | 2020-10-27 | 中建七局安装工程有限公司 | Construction method of two-lining middle partition wall injection tunnel with support |
| CN111828051B (en) * | 2020-07-28 | 2022-04-15 | 中建七局安装工程有限公司 | Construction method of two-lining middle partition wall injection tunnel with support |
| CN112253139A (en) * | 2020-11-03 | 2021-01-22 | 中铁隆工程集团有限公司 | Construction method for channel range main hole excavation flow |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300350 Tianjin city Jinnan District double Township Co-patentee after: CHINA RAILWAY 18 BUREAU GROUP MUNICIPAL ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY 18 BUREAU GROUP Co.,Ltd. Address before: 300350 Tianjin city Jinnan District double Township Co-patentee before: CHINA RAILWAY 18 BUREAU GROUP TRACK TRAFFIC PROJECT Co.,Ltd. Patentee before: CHINA RAILWAY 18 BUREAU GROUP Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 |