CN107387131A - A kind of asymmetric trouble hole supporting construction and its construction method - Google Patents
A kind of asymmetric trouble hole supporting construction and its construction method Download PDFInfo
- Publication number
- CN107387131A CN107387131A CN201710762725.8A CN201710762725A CN107387131A CN 107387131 A CN107387131 A CN 107387131A CN 201710762725 A CN201710762725 A CN 201710762725A CN 107387131 A CN107387131 A CN 107387131A
- Authority
- CN
- China
- Prior art keywords
- shaped steel
- hole
- steel arch
- arch
- main hole
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Abstract
The invention discloses a kind of asymmetric trouble hole supporting construction, including main hole, branch hole, in branch hole, from the side wall of branch hole one to another side wall across provided with complete first shaped steel arch；At branch hole and main hole boundary line the single shaped steel archs of a Pin second are provided with along intersection direction；The shaped steel arch of semi-arched the 3rd is provided with main hole, positioned at main hole and branch hole intersection；In main hole, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is fixed on the bottom plate in main hole, and the crown end of every shaped steel archs of a Pin the 3rd is vertical with the second shaped steel arch to be fixedly connected；Region in main hole, outside main hole and branch hole intersection scope, from the main side wall of hole one to another side wall across provided with complete 4th shaped steel arch.The asymmetric trouble hole supporting construction that the present invention designs so that excavate Cha Dong in the location of features as poor geologic condition and be possibly realized.Using the form of shaped steel arch supporting, arrangement is simple, easy for construction, and supporting effect is good.
Description
Technical field
The invention belongs to underground engineering construction field, and in particular to a kind of asymmetric trouble hole supporting construction and its construction party
Method.
Background technology
In current tunnel construction project, asymmetric Cha Dong is excavated if needed, can typically select the good ground of geological conditions
Duan Jinhang is excavated, and gets around the location of features as poor geologic condition as far as possible, in favor of ensureing adjoining rock stability.Excavated in the good location of geological conditions
Cha Dong, typically only need to take combined bolting and shotcrete to maintain adjoining rock stability.
But inevitably existing in Practical Project needs to excavate Cha Dong feelings in the position of features as poor geologic condition
Condition, in this case traditional bolt-spary supports be difficult to ensure that adjoining rock stability, the actual requirement of engineering can not be met, it is therefore desirable to one
Kind can excavate structure and construction method that asymmetric Cha Dong carries out supporting to the location of features as poor geologic condition.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of can excavate asymmetric Cha Dong to the location of features as poor geologic condition
Carry out the structure and construction method of supporting.
The technical scheme of the present invention that solves the problems, such as is：A kind of asymmetric trouble hole supporting construction, including main hole, in main hole side wall
The branch hole of upper bifurcated connection, in branch hole, from the side wall of branch hole one to another side wall across provided with complete first shaped steel arch；
At branch hole and main hole boundary line the single shaped steel archs of a Pin second are provided with along intersection direction；
The shaped steel arch of semi-arched the 3rd is provided with main hole, positioned at main hole and branch hole intersection；
In main hole, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is fixed on the bottom plate in main hole, the every shaped steel of a Pin the 3rd arch
The top of frame is fixedly connected by anchor pole with country rock, and the crown end of every shaped steel archs of a Pin the 3rd is hung down with the second shaped steel arch
Directly it is fixedly connected；
Region in main hole, outside main hole and branch hole intersection scope, from the main side wall of hole one to another side wall across setting
There is complete 4th shaped steel arch.
The form that such scheme is connected using the 3rd shaped steel arch and the second shaped steel arch, overcome main hole and branch hole and intersect
The problem of mouth supporting so that set asymmetric Cha Dong to be possibly realized in the location of features as poor geologic condition.
Further, first shaped steel arch, the second shaped steel arch, the 3rd shaped steel arch, the top of the 4th shaped steel arch
Concrete is sprayed between portion and country rock；
The top of every shaped steel archs of a Pin second is fixedly connected by anchor pole with country rock.
Specifically, used in first shaped steel arch, the second shaped steel arch, the 3rd shaped steel arch, the 4th shaped steel arch
Shaped steel is I-steel, and anchor pole lower end bending is L-shaped, and horizontal part and the I-steel bottom flange of the bending of anchor pole lower end weld.
The edge of a wing of the edge of a wing at the crown end of every shaped steel archs of a Pin the 3rd with the second shaped steel arch is by being connected crab bolt
Connection.
Generally, angle between the branch hole and main hole be present, first shaped steel arch is radially set；
3rd shaped steel arch and the 4th shaped steel arch are arranged perpendicular to main hole axis.
Preferably, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is equipped with base, is fixed on main hole by base support
On bottom plate.
Accordingly, the present invention also provides a kind of construction method of asymmetric trouble hole supporting construction, it is characterised in that including such as
Lower step：
（a）Branch hole is excavated, linked network and first shotcrete support are done after excavating shaping；
（b）In branch hole, from the side wall of branch hole one to another side wall across complete first shaped steel arch is set up, until branch hole and master
The intersection in hole, and the multiple pneumatically placed concrete between the first shaped steel arch and branch hole hole wall simultaneously；
（c）The single shaped steel archs of a Pin second are set up along intersection direction at the intersection boundary line in branch hole and main hole, then
By anchor pole one end insertion concrete until being welded in the top girth rock of branch hole, at the top of the other end and the second shaped steel arch；
（d）Main hole is excavated, linked network and first shotcrete support are done after excavating shaping；
（e）In main hole, the 3rd shaped steel arch, every shaped steel archs of a Pin the 3rd are set up in the range of main hole and branch hole intersection
Non-top arch abutment be fixed on the bottom plate in main hole；And the crown end of every shaped steel archs of a Pin the 3rd is hung down with the second shaped steel arch
Directly it is fixedly connected；Meanwhile the multiple pneumatically placed concrete between the 3rd shaped steel arch and main hole hole wall, coagulation is then inserted into anchor pole one end
Soil in main hole top girth rock, at the top of the other end and the 3rd shaped steel arch until weld；
（f）Region in main hole, outside main hole and branch hole intersection, from the main side wall of hole one to another side wall across erection
Complete 4th shaped steel arch, and the multiple pneumatically placed concrete between the 4th shaped steel arch and main hole hole wall simultaneously,；
The sequence of construction of above-mentioned steps is（a）—（b）—（c）—（d）—（e）—（f）, or（d）—（c）—（e）—（f）—
（a）—（b）；Wherein step（e）And step（f）Sequencing can exchange.
Further, first shaped steel arch, the second shaped steel arch, the 3rd shaped steel arch, used in the 4th shaped steel arch
Shaped steel be I-steel, anchor pole lower end bending is L-shaped, and the horizontal part of anchor pole lower end bending welds with I-steel bottom flange
Connect.
Step（e）In, the crown end of every shaped steel archs of a Pin the 3rd is vertical with the second shaped steel arch when being fixedly connected, be by
Both edges of a wing pass through connecting plate bolt connection.
Angle, step be present between the branch hole and main hole（b）In the first shaped steel arch radially set；
Step（e）~（f）In, the 3rd shaped steel arch and the 4th shaped steel arch are arranged perpendicular to main hole axis.
Step（e）In, every shaped steel arch non-top arch abutments of a Pin the 3rd are equipped with base, are fixed on main hole by base support
On bottom plate.
The asymmetric trouble hole supporting construction that the present invention designs so that features as poor geologic condition location excavate Cha Dong turn into can
Energy.Using the form of shaped steel arch supporting, arrangement is simple, easy for construction, has reached good supporting effect.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is asymmetric trouble hole shaped steel arch horizontal layout schematic diagram.
Fig. 2 is main hole and branch hole intersection shaped steel arch connection diagram.
In figure：The main holes of 1-, 2- branch hole, the shaped steel archs of 3- first, the shaped steel archs of 4- the 4th, the shaped steel archs of 5- the 3rd, 6-
Two shaped steel archs, 7- connecting plates, 9- anchor poles, 10- concrete, the 11- edges of a wing.
Embodiment
As shown in Fig. 1~2, a kind of asymmetric trouble hole supporting construction, including main hole 1, the bifurcated connection in the main side wall of hole 1
Branch hole 2.Angle be present between the branch hole 2 and main hole 1.
In branch hole 2, from the side wall of branch hole 2 one to another side wall across provided with complete first shaped steel arch 3.Described first
Shaped steel arch 3 is radially set.
At branch hole 2 and the main boundary line of hole 1 single the second shaped steel archs of a Pin 6 are provided with along intersection direction.
The shaped steel arch 5 of semi-arched the 3rd is provided with main hole 1, positioned at main hole 1 and the intersection of branch hole 2.
In main hole 1, the non-top arch abutment of every shaped steel archs 5 of a Pin the 3rd is equipped with base, every shaped steel archs 5 of a Pin the 3rd
Non-top arch abutment be fixed on the bottom plate in main hole 1, the top of every shaped steel archs 5 of a Pin the 3rd is fixed by anchor pole 9 with country rock
Connection, the crown ends of every shaped steel archs 5 of a Pin the 3rd is vertical with the second shaped steel arch 6 to be fixedly connected.
Region in main hole 1, outside main hole 1 and the intersection scope of branch hole 2, from the main side wall of hole 1 one to opposite side
Wall is across provided with complete 4th shaped steel arch 4.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the top of the 4th shaped steel arch 4 are with enclosing
Concrete 10 is sprayed between rock.
The top of every the second shaped steel archs of a Pin 6 is fixedly connected by anchor pole 9 with country rock.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the shaped steel used in the 4th shaped steel arch 4
For I-steel.The lower end bending of anchor pole 9 is L-shaped, and the horizontal component of the lower end bending of anchor pole 9 welds with I-steel bottom flange 11
Connect.
The edge of a wing 11 at the crown end of every shaped steel archs 5 of a Pin the 3rd passes through with the edge of a wing 11 of the second shaped steel arch 6 to be connected
The bolt connection of plate 7.
3rd shaped steel arch 5 and the 4th shaped steel arch 4 are arranged perpendicular to the main axis of hole 1.
Accordingly, the present embodiment also provides a kind of construction method of asymmetric trouble hole supporting construction, it is characterised in that including
Following steps：
（a）Branch hole 2 is excavated, linked network and first shotcrete support are done after excavating shaping.
（b）In branch hole 2, from the side wall of branch hole 2 one to another side wall radially across the complete first shaped steel arch of erection
Frame 3, until the intersection in branch hole 2 and main hole 1, and coagulation is sprayed again between the first shaped steel arch 3 and the hole wall of branch hole 2 simultaneously
Soil.（c）At the intersection boundary line in branch hole 2 and main hole 1 single the second shaped steel archs of a Pin 6 are set up along intersection direction.So
Concrete 10 is inserted into the one end of anchor pole 9 afterwards until being welded in the top girth rock of branch hole 2, at the top of the other end and the second shaped steel arch 6.
（d）Main hole 1 is excavated, linked network and first shotcrete support are done after excavating shaping.
（e）In main hole 1, in the range of main hole 1 and the intersection of branch hole 2 the 3rd shaped steel is set up perpendicular to the main axis of hole 1
Bow member 5.The non-top arch abutment of every shaped steel archs 5 of a Pin the 3rd is fixed on the bottom plate in main hole 1.And by every shaped steel archs of a Pin the 3rd
5 crown end is vertical with the second shaped steel arch 6 to be fixedly connected.It is that both edges of a wing 11 are passed through into company when being vertically fixedly connected
The bolt connection of fishplate bar 7.Meanwhile the multiple pneumatically placed concrete between the 3rd shaped steel arch 5 and the hole wall of main hole 1.Then the one end of anchor pole 9 is inserted
Enter concrete 10 until being welded in the main top girth rock of hole 1, at the top of the other end and the 3rd shaped steel arch 5.
（f）Region in main hole 1, outside main hole 1 and the intersection of branch hole 2, from the main side wall of hole 1 one to another side wall
Perpendicular to the main axis of hole 1 across setting up complete 4th shaped steel arch 4, and simultaneously the 4th shaped steel arch 4 and the main hole wall of hole 1 it
Between multiple pneumatically placed concrete.
The sequence of construction of above-mentioned steps is（a）—（b）—（c）—（d）—（e）—（f）, or（d）—（c）—（e）—
（f）—（a）—（b）；Wherein step（e）And step（f）Sequencing can exchange.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the shaped steel used in the 4th shaped steel arch 4
For I-steel, the lower end bending of anchor pole 9 is L-shaped, and the horizontal part of the lower end bending of anchor pole 9 welds with I-steel bottom flange 11.
Claims (11)
1. a kind of asymmetric trouble hole supporting construction, including main hole（1）, in main hole（1）The branch hole that bifurcated connects in side wall（2）, its
It is characterised by：In branch hole（2）It is interior, from branch hole（2）One side wall is to another side wall across provided with complete first shaped steel arch（3）；
In branch hole（2）With main hole（1）At boundary line the single shaped steel archs of a Pin second are provided with along intersection direction（6）；
In main hole（1）It is interior, positioned at main hole（1）With branch hole（2）Intersection is provided with the shaped steel arch of semi-arched the 3rd（5）；
In main hole（1）It is interior, every shaped steel archs of a Pin the 3rd（5）Non-top arch abutment be fixed on main hole（1）Bottom plate on, every Pin
Three shaped steel archs（5）Top pass through anchor pole（9）It is fixedly connected with country rock, every shaped steel archs of a Pin the 3rd（5）Crown end
With the second shaped steel arch（6）Vertically it is fixedly connected；
In main hole（1）It is interior, in main hole（1）With branch hole（2）Region outside the scope of intersection, from main hole（1）One side wall is to separately
One side wall is across provided with complete 4th shaped steel arch（4）.
2. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：First shaped steel arch（3）,
Two shaped steel archs（6）, the 3rd shaped steel arch（5）, the 4th shaped steel arch（4）Top and country rock between be sprayed with concrete
（10）；
Every shaped steel archs of a Pin second（6）Top pass through anchor pole（9）It is fixedly connected with country rock.
3. asymmetric trouble hole supporting construction according to claim 2, it is characterised in that：First shaped steel arch（3）,
Two shaped steel archs（6）, the 3rd shaped steel arch（5）, the 4th shaped steel arch（4）Shaped steel used is I-steel, the anchor pole（9）Under
Hold bending L-shaped, anchor pole（9）The horizontal part of lower end bending and I-steel bottom flange（11）Welding.
4. asymmetric trouble hole supporting construction according to claim 3, it is characterised in that：Every shaped steel archs of a Pin the 3rd（5）
Crown end the edge of a wing（11）With the second shaped steel arch（6）The edge of a wing（11）Pass through connecting plate（7）Bolt connection.
5. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：The branch hole（2）With main hole（1）It
Between angle, first shaped steel arch be present（3）Radially set；
3rd shaped steel arch（5）With the 4th shaped steel arch（4）Perpendicular to main hole（1）Axis is arranged.
6. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：Every shaped steel archs of a Pin the 3rd（5）
Non-top arch abutment be equipped with base, by base support be fixed on main hole（1）On bottom plate.
7. a kind of construction method of trouble hole supporting construction asymmetric as claimed in claim 2, it is characterised in that comprise the following steps：
（a）Excavate branch hole（2）, linked network and first shotcrete support are done after excavating shaping；
（b）In branch hole（2）It is interior, from branch hole（2）One side wall is to another side wall across complete first shaped steel arch of erection（3）, directly
To branch hole（2）With main hole（1）Intersection, and simultaneously in the first shaped steel arch（3）With branch hole（2）Coagulation is sprayed again between the wall of hole
Soil；
（c）In branch hole（2）With main hole（1）Intersection boundary line at along intersection direction set up single shaped steel archs of a Pin second
（6）, then by anchor pole（9）Concrete is inserted in one end（10）Until branch hole（2）In top girth rock, the other end and the second shaped steel arch
（6）Welding；
（d）Excavate main hole（1）, linked network and first shotcrete support are done after excavating shaping；
（e）In main hole（1）It is interior, positioned at main hole（1）With branch hole（2）The 3rd shaped steel arch is set up in the range of intersection（5）, every Pin
3rd shaped steel arch（5）Non-top arch abutment be fixed on main hole（1）Bottom plate on；And by every shaped steel archs of a Pin the 3rd（5）Top
Arch abutment with the second shaped steel arch（6）Vertically it is fixedly connected；Meanwhile in the 3rd shaped steel arch（5）With main hole（1）It is multiple between the wall of hole
Pneumatically placed concrete, then by anchor pole（9）Concrete is inserted in one end（10）Until main hole（1）In top girth rock, the other end and the 3rd shaped steel
Bow member（5）Welding；
（f）In main hole（1）It is interior, in main hole（1）With branch hole（2）Region outside intersection, from main hole（1）One side wall is to another
Side wall is across complete 4th shaped steel arch of erection（4）, and simultaneously in the 4th shaped steel arch（4）With main hole（1）It is multiple between the wall of hole
Pneumatically placed concrete；
The sequence of construction of above-mentioned steps is（a）—（b）—（c）—（d）—（e）—（f）, or（d）—（c）—（e）—（f）—
（a）—（b）；Wherein step（e）And step（f）Sequencing can exchange.
8. construction method according to claim 7, it is characterised in that：First shaped steel arch（3）, the second shaped steel arch
（6）, the 3rd shaped steel arch（5）, the 4th shaped steel arch（4）Shaped steel used is I-steel, the anchor pole（9）Lower end is bent into L
Shape, anchor pole（9）The horizontal part of lower end bending and I-steel bottom flange（11）Welding.
9. construction method according to claim 8, it is characterised in that：Step（e）In, every shaped steel archs of a Pin the 3rd（5）
Crown end and the second shaped steel arch（6）It is by both edges of a wing when being vertically fixedly connected（11）Pass through connecting plate（7）Bolt connects
Connect.
10. construction method according to claim 7, it is characterised in that：The branch hole（2）With main hole（1）Between exist folder
Angle, step（b）In the first shaped steel arch（3）Radially set；
Step（e）~（f）In, the 3rd shaped steel arch（5）With the 4th shaped steel arch（4）Perpendicular to main hole（1）Axis is arranged.
11. construction method according to claim 7, it is characterised in that：Step（e）In, every shaped steel archs of a Pin the 3rd（5）
Non-top arch abutment is equipped with base, is fixed on main hole by base support（1）On bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762725.8A CN107387131A (en) | 2017-08-30 | 2017-08-30 | A kind of asymmetric trouble hole supporting construction and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762725.8A CN107387131A (en) | 2017-08-30 | 2017-08-30 | A kind of asymmetric trouble hole supporting construction and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387131A true CN107387131A (en) | 2017-11-24 |
Family
ID=60348233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710762725.8A Pending CN107387131A (en) | 2017-08-30 | 2017-08-30 | A kind of asymmetric trouble hole supporting construction and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387131A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664205A (en) * | 2020-12-28 | 2021-04-16 | 浙江省水利水电勘测设计院 | Tunnel excavation supporting method for crossroads |
| CN113586079A (en) * | 2021-08-24 | 2021-11-02 | 中国电建集团中南勘测设计研究院有限公司 | Tunnel crossroad structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650212A (en) * | 2012-05-04 | 2012-08-29 | 中国十七冶集团有限公司 | Construction method for protecting partition wall in double-arch tunnel through temporary support of middle pilot tunnel |
| CN204920988U (en) * | 2015-08-28 | 2015-12-30 | 中铁十九局集团第七工程有限公司 | Caunch steelframe and strut in tunnel crossing |
| CN106907161A (en) * | 2017-04-28 | 2017-06-30 | 中铁二十二局集团第五工程有限公司 | A kind of novel tunnel inclined shaft chooses item special project construction method |
| CN206309406U (en) * | 2016-12-10 | 2017-07-07 | 中铁二十局集团第六工程有限公司 | A kind of inclined shaft is become a full member the structure of caunching in hole |
| CN207093102U (en) * | 2017-08-30 | 2018-03-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of asymmetric trouble hole supporting construction |
-
2017
- 2017-08-30 CN CN201710762725.8A patent/CN107387131A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650212A (en) * | 2012-05-04 | 2012-08-29 | 中国十七冶集团有限公司 | Construction method for protecting partition wall in double-arch tunnel through temporary support of middle pilot tunnel |
| CN204920988U (en) * | 2015-08-28 | 2015-12-30 | 中铁十九局集团第七工程有限公司 | Caunch steelframe and strut in tunnel crossing |
| CN206309406U (en) * | 2016-12-10 | 2017-07-07 | 中铁二十局集团第六工程有限公司 | A kind of inclined shaft is become a full member the structure of caunching in hole |
| CN106907161A (en) * | 2017-04-28 | 2017-06-30 | 中铁二十二局集团第五工程有限公司 | A kind of novel tunnel inclined shaft chooses item special project construction method |
| CN207093102U (en) * | 2017-08-30 | 2018-03-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of asymmetric trouble hole supporting construction |
Non-Patent Citations (2)
| Title |
|---|
| 刘天山: "《湿陷性黄土隧洞主洞与支洞交叉口施工技术》", 《甘肃水利水电技术》 * |
| 孙进玲: "《隧道通风斜井与主洞交叉口施工方法探讨》", 《桥隧工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664205A (en) * | 2020-12-28 | 2021-04-16 | 浙江省水利水电勘测设计院 | Tunnel excavation supporting method for crossroads |
| CN113586079A (en) * | 2021-08-24 | 2021-11-02 | 中国电建集团中南勘测设计研究院有限公司 | Tunnel crossroad structure and construction method thereof |
| CN113586079B (en) * | 2021-08-24 | 2024-02-13 | 中国电建集团中南勘测设计研究院有限公司 | Tunnel cross intersection structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109372129A (en) | The novel full assembly concrete frame joint of one kind and its construction method | |
| CN103603679A (en) | Vault steel frame for support tunnel arch and tunnel construction method | |
| CN104790973A (en) | Construction method of tunnel steel arch feet-lock bolts | |
| CN105822329B (en) | A kind of construction method of support bracket, supporting construction and supporting construction | |
| CN107387131A (en) | A kind of asymmetric trouble hole supporting construction and its construction method | |
| CN205475725U (en) | Post -construction concrete floor beam board steel bar connection device stagnates | |
| CN103835374A (en) | Novel square steel tube column-H-shaped steel beam splicing outer sleeve type connecting method | |
| CN107313790A (en) | A kind of symmetrical trouble hole supporting construction and its construction method | |
| CN207093102U (en) | A kind of asymmetric trouble hole supporting construction | |
| CN208982069U (en) | A kind of gas tunnel soft stratum steel arch-shelf longitudinal connecting component | |
| CN204551549U (en) | The connected node of steel pipe post and pile foundation, underframe longitudinal member in sheltered reverse excavation foundation ditch | |
| CN207161119U (en) | A kind of symmetrical trouble hole supporting construction | |
| CN103882808B (en) | Ramp bridge and main line bridge join the construction method across erecting beam support system | |
| CN206816278U (en) | The new recyclable supporting steel arch-shelf of horizontal ground settlement and tunnel | |
| CN211498507U (en) | Whole reassembling type protection rack | |
| CN106759365B (en) | A kind of counterfort wing wall waterproof curtain construction method of foundation pit enclosure wall | |
| CN102817617B (en) | Novel inhaul cable type shield originating backrest substrate system | |
| CN207863157U (en) | A kind of reinforced beam-column node structure | |
| CN203684102U (en) | Supporting system for precast beam formed by connecting span erection of ramp bridge and main line bridge | |
| CN214245300U (en) | Pipeline suspension structure spanning long and narrow foundation pit | |
| CN205348192U (en) | Shoring of trench lattice formula stand structure | |
| CN208073517U (en) | A kind of twisted steel positioning reinforcing device | |
| CN206928956U (en) | A kind of structure of PBA grids | |
| CN205242410U (en) | Fixed steel shotcrete and concrete guan liang's member in foundation ditch engineering | |
| CN204371356U (en) | A kind of tunnel vault earth terminal pre-embedded device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |