CN207960628U - Tunnel tunnel face pre-add fixing structure - Google Patents
Tunnel tunnel face pre-add fixing structure Download PDFInfo
- Publication number
- CN207960628U CN207960628U CN201721869985.7U CN201721869985U CN207960628U CN 207960628 U CN207960628 U CN 207960628U CN 201721869985 U CN201721869985 U CN 201721869985U CN 207960628 U CN207960628 U CN 207960628U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- face
- bracing means
- steel pipe
- fixing structure
- 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.)
- Expired - Fee Related
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of tunnel tunnel face pre-add fixing structures, including the first bracing means, the second bracing means and third bracing means；First bracing means is along face arch insert into stratum and the circumferential steel pipe laid；Second bracing means is along face front insert into stratum and the front anchor pole parallel with the longitudinal centre line in the tunnel；The third bracing means is injection in the positive concrete layer of the face；The steel pipe includes the drilling section equipped with through-hole, the longitudinal centre line irrelevancy row of the steel pipe and the tunnel.The utility model carries out pre-reinforcement using three kinds of bracing means to tunnel tunnel face, can be reinforced well to face, and simple in structure, easy for construction, can effectively promote constructing tunnel efficiency.Three kinds of structure synergistic effects, sequence of construction can be flexible and changeable, adaptation to local conditions, can reach preferable face support effect for Different Strata structure.
Description
Technical field
The utility model is related to tunnel tunnel face reinforcement technique fields, are consolidated in particular to tunnel tunnel face pre-add
Structure.
Background technology
" Xigeda Formation " is a kind of soft stratum of China's Panxi Diqu, is gained the name in the Panzhihua City Yanbian County townshiies Hong Ge former times lattice
Up to village.Xigeda Formation stratum has the characteristics that easy-weathering, chance water easy disintegrating after carrying force difference, excavation.Also, when Xigeda Formation
After layer is disturbed, permeability increases, and pole is unfavorable for the stabilization of country rock and face.It is known that tunnel is passing through weakness
When the bad geological section of country rock, easily occur wall damage, unstability, roof fall phenomena such as.In order to avoid the above situation, need to area
Face carries out pre-reinforcement processing, to realize the safety of full section of tunnel, ensures that tunnel being capable of smooth construction.
China builds tunnel in Xigeda Formation stratum area and lacks experience at present, most of still to use traditional face
Reinforcement means, cost is high, and underaction influences construction efficiency.
Utility model content
The main purpose of the utility model is to provide tunnel tunnel face pre-add fixing structures, traditional in the prior art to solve
Solidifying of the working face method existing for cost is high, underaction and the problem of influence construction efficiency.
To achieve the goals above, the utility model provides a kind of tunnel tunnel face pre-add fixing structure.The tunnel face
Face pre-add fixing structure includes the first bracing means, the second bracing means and third bracing means；First bracing means is edge
Face arch insert into stratum and the circumferential steel pipe laid；Second bracing means is to be inserted into along the face front
Stratum and the front anchor pole parallel with the longitudinal centre line in the tunnel；The third bracing means is injection in the face
Positive concrete layer；The steel pipe includes the drilling section equipped with through-hole, and the longitudinal centre line in the steel pipe and the tunnel is not
It is parallel.
The utility model carries out pre-reinforcement using three kinds of bracing means to tunnel tunnel face, can be well to face
It is reinforced, and simple in structure, it is easy for construction, it can effectively promote constructing tunnel efficiency.Through-hole on steel pipe can conduct
Injected hole and osculum not only carry out pre-reinforcement to face, moreover it is possible to the underground water near face drained, therefore can
Solves the problems, such as well permeability increases after stratum is disturbed, meet water easy disintegrating and excavation after easy-weathering.Three kinds of structure collaborations
Effect, sequence of construction can be flexible and changeable, adaptation to local conditions, can reach preferable face support effect for Different Strata structure
Fruit.The utility model is applicable not only to Xigeda Formation earth formation, applies also for other earth formations with similar structure, when
So it also can be suitably used for common earth formation.
Further, the through-hole is injected hole, and the angle between the steel pipe and the longitudinal centre line in the tunnel is 1
~3 °.At this point it is possible to which steel pipe is known as Grouting Pipe, effect is that slurry is injected into earth formation, is reinforced around face
Stratum, phenomena such as preventing wall damage, unstability, roof fall.Angle between the steel pipe and the longitudinal centre line in the tunnel
When being 1~3 °, it is ensured that faster injection speed and preferable consolidation effect.
Further, the through-hole is osculum, and the angle between the steel pipe and the longitudinal centre line in the tunnel is
15~20 °.At this point it is possible to which steel pipe is known as tapping pipe, effect is the water being discharged in the higher earth formation of water content, is reduced
Hydraulic pressure prevents stratum water disintegration.Water can be discharged outside tunnel by the pumping equipment in tunnel by the water of tapping pipe discharge.
When the angle between the steel pipe and the longitudinal centre line in the tunnel is 15~20 °, it is ensured that sluice speed faster.
It, can be only with Grouting Pipe for the less section of water content.
Further, the steel pipe further includes do not drill section and the conehead for being located at the drilling section both ends.It ties as a result,
Structure is simple, convenient for the insertion angle of control steel pipe, accelerates speed of application.
Further, the thickness of the concrete layer is 3~10cm.It, can be first for the higher location of water content
Forms the concrete layer before bracing means installation, to prevent the discharge of stopping leak water pipe water and slacking to the stabilization of face
Property have an impact, while reducing disturbance to face.When concrete has above-mentioned thickness, not only there is preferable face
Stabilization is also convenient for the construction of front anchor pole.
Further, the front anchor pole is glass fibre grouted anchor bar.Glass fibre grouted anchor bar has intensity height, matter
The features such as light is measured, the stability of the core soil body to be dug can be greatly improved, and directly can excavate to abolish and pass through, not damage excavation
The service life of mechanical equipment.
Further, the tunnel is Xigeda Formation formation tunnel.The utility model is very suitable for Xigeda Formation stratum
The reinforcing of tunnel tunnel face, low cost, degree of flexibility is high, can be obviously improved construction efficiency.
As it can be seen that the utility model economical rationality, the type of required material is less, simple and reliable, can improve tunnel
Construction efficiency.The structure not only carries out pre-reinforcement to face, moreover it is possible to be drained to the underground water near face.It can be very
After good solution Misuse Intrusion Detection is disturbed, permeability increases and chance water easy disintegrating, after excavation the problem of easy-weathering, to real
The safety of existing full section of tunnel ensures that tunnel being capable of smooth construction.
The utility model is described further with reference to the accompanying drawings and detailed description.The utility model is additional
Aspect and advantage will be set forth in part in the description, and partly will become apparent from the description below, or pass through this practicality
Novel practice is recognized.
Description of the drawings
The attached drawing for constituting the part of the utility model is used for assisting understanding to the utility model, provided in attached drawing
Content and its related explanation can be used for explaining the utility model in the present invention, but is not constituted to the utility model not
Work as restriction.In the accompanying drawings：
Fig. 1 is the front view of the tunnel tunnel face pre-add fixing structure of the utility model embodiment 1.
Fig. 2 is the side view of the tunnel tunnel face pre-add fixing structure of the utility model embodiment 1.
Fig. 3 is the structural schematic diagram of the steel pipe of the utility model embodiment 1.
Fig. 4 is the front view of the tunnel tunnel face pre-add fixing structure of the utility model embodiment 2.
Fig. 5 is the side view of the tunnel tunnel face pre-add fixing structure of the utility model embodiment 2.
Related label in above-mentioned attached drawing be：
100：Face；
1：Steel pipe；
11：Grouting Pipe；
12：Tapping pipe；
101：Drill section；
102：Do not drill section；
103：Conehead；
104：Through-hole；
2：Front anchor pole；
3：Concrete layer；
∠1：Angle between Grouting Pipe and the longitudinal centre line in tunnel；
∠2：Angle between tapping pipe and the longitudinal centre line in tunnel；
∠3：The distribution angle of steel pipe.
Specific implementation mode
Clear, complete explanation is carried out to the utility model below in conjunction with the accompanying drawings.Those of ordinary skill in the art based on
The utility model will be realized in the case of these explanations.Before being illustrated to the utility model in conjunction with attached drawing, spy is needed
It is not pointed out that：
Technical solution and technical characteristic in the utility model provided in each section including following the description,
In the case of not conflicting, these technical solutions and technical characteristic can be combined with each other.
In addition, involved in following the description to the embodiments of the present invention be generally only the utility model part reality
Example is applied, instead of all the embodiments.Therefore, the embodiments of the present invention are based on, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, should all belong to the model of the utility model protection
It encloses.
About term in the utility model and unit.The specification and claims of the utility model and related part
In term " comprising ", " having " and their any deformation, it is intended that cover and non-exclusive include.
Embodiment 1
Tunnel tunnel face pre-add fixing structure as shown in Figs. 1-2, including the first bracing means, the second bracing means and third
Bracing means, the tunnel are Xigeda Formation formation tunnel.
First bracing means is along 100 arch insert into stratum of the face and the circumferential steel pipe 1 laid, the steel
Pipe 1 is seamless steel pipe；The steel pipe 1 as shown in Figure 3 includes being equipped with the drilling section 101 of through-hole 104 and being located at described
104 quantity of through-hole of do not drill section 102 and the conehead 103 at 101 both ends of the section that drills, each end face is three.The steel pipe 1 is all
For Grouting Pipe 11, at this point, the through-hole 104 is injected hole, between the Grouting Pipe 11 and the longitudinal centre line in the tunnel
Angle ∠ 1 is 2 °.
Second bracing means be along 100 front insert into stratum of the face and with the longitudinal centre line in the tunnel
Parallel front anchor pole 2；The front anchor pole 2 is glass fibre grouted anchor bar.
The third bracing means is injection in 100 positive concrete layer 3 of the face；The concrete layer 3
Thickness is 5cm.
The present embodiment is mainly used in the less geology section of water content, in use, first along 100 arch of face about
(i.e. ∠ 3=150 °) is circumferential within the scope of 150 ° lays steel pipe 1, and all carries out slip casting, the water of surrounding is blocked with slip casting, and fill
Divide and stablizes the 100 top soil body of face.Then it to the concrete layer 3 of 100 injection design thickness of face, avoids squeezing into just below
Face anchor pole 2 or other working procedures of tunnel destroy the stability of face 100.Finally drills again and squeeze into front anchor pole 2 simultaneously
Implantation glass fibre stuff, to achieve the effect that stable face 100.
Embodiment 2
Tunnel tunnel face pre-add fixing structure as illustrated in figures 4-5, including the first bracing means, the second bracing means and third
Bracing means, the tunnel are Xigeda Formation formation tunnel.
First bracing means is along 100 arch insert into stratum of the face and the circumferential steel pipe 1 laid, the steel
Pipe 1 is seamless steel pipe；As shown in figure 3, the steel pipe 1 includes being equipped with the drilling section 101 of through-hole 104 and being located at described
104 quantity of through-hole of do not drill section 102 and the conehead 103 at 101 both ends of the section that drills, each end face is three.The steel pipe 1 includes
Grouting Pipe 11 and tapping pipe 12, at this point, the through-hole 104 is injected hole or osculum, the Grouting Pipe 11 and the tunnel
Angle ∠ 1 between longitudinal centre line is 2 °, and the angle ∠ 2 between the tapping pipe 12 and the longitudinal centre line in the tunnel is
18°。
Second bracing means be along 100 front insert into stratum of the face and with the longitudinal centre line in the tunnel
Parallel front anchor pole 2；The front anchor pole 2 is glass fibre grouted anchor bar.
The third bracing means is injection in 100 positive concrete layer 3 of the face；The concrete layer 3
Thickness is 5cm.
The present embodiment is mainly used in the more geology section of water content, in use, thick to 100 injection design of face first
The concrete layer 3 of degree, prevent tapping pipe 12 be discharged water and slacking the stability of face 100 is had an impact and
Disturbance to face 100.Then Grouting Pipe 11 is being squeezed into along (i.e. ∠ 3=150 °) within the scope of about 150 ° of 100 arch of face
With tapping pipe 12, tapping pipe 12 can drain the water around country rock, reduce hydraulic pressure, and will by the pumping equipment in tunnel
Water is discharged outside tunnel, and the slurry that Grouting Pipe 11 is injected can block the water of surrounding, and substantially stabilized 100 top of face soil
Body.It finally drills to face 100, squeezes into front anchor pole 2 and slip casting, further reinforce face 100.
The related content of the utility model is illustrated above.Those of ordinary skill in the art are based on these explanations
In the case of will realize the utility model.The above based on the utility model, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, should all belong to the model of the utility model protection
It encloses.
Claims (7)
1. tunnel tunnel face pre-add fixing structure, it is characterised in that：It is reinforced including the first bracing means, the second bracing means and third
Device；First bracing means is along the face (100) arch insert into stratum and the circumferential steel pipe (1) laid；It is described
Second bracing means is along the face (100) front insert into stratum and the front parallel with the longitudinal centre line in the tunnel
Anchor pole (2)；The third bracing means is injection in the face (100) positive concrete layer (3)；The steel pipe (1)
Drilling section (101) including being equipped with through-hole (104), the longitudinal centre line irrelevancy row of the steel pipe and the tunnel.
2. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The through-hole (104) is injected hole,
Angle between the steel pipe (1) and the longitudinal centre line in the tunnel is 1~3 °.
3. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The through-hole (104) is osculum,
Angle between the steel pipe (1) and the longitudinal centre line in the tunnel is 15~20 °.
4. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The steel pipe (1) further includes difference
The section that do not drill (102) and conehead (103) positioned at described drilling section (101) both ends.
5. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The thickness of the concrete layer (3)
For 3~10cm.
6. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The front anchor pole (2) is glass
Fiber grouted anchor bar.
7. tunnel tunnel face pre-add fixing structure as described in claim 1, it is characterised in that：The tunnel is Xigeda Formation stratum
Tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869985.7U CN207960628U (en) | 2017-12-28 | 2017-12-28 | Tunnel tunnel face pre-add fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869985.7U CN207960628U (en) | 2017-12-28 | 2017-12-28 | Tunnel tunnel face pre-add fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207960628U true CN207960628U (en) | 2018-10-12 |
Family
ID=63730137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721869985.7U Expired - Fee Related CN207960628U (en) | 2017-12-28 | 2017-12-28 | Tunnel tunnel face pre-add fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207960628U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578035A (en) * | 2018-11-06 | 2019-04-05 | 四川路航建设工程有限责任公司 | Steel pipe draining lock foot stake and construction method |
| CN109653749A (en) * | 2018-11-30 | 2019-04-19 | 中铁二局第五工程有限公司 | A kind of loose slide rock rubble soil section tunnel excavation construction method of high altitude localities shallow embedding |
| CN109826657A (en) * | 2019-03-08 | 2019-05-31 | 西南交通大学 | One kind being used for soft rock tunnel solidifying of the working face device and its construction method |
| CN112324471A (en) * | 2020-12-15 | 2021-02-05 | 中铁第一勘察设计院集团有限公司 | Tunnel face advanced precipitation anchor rod for water-rich red sandstone stratum and construction method |
-
2017
- 2017-12-28 CN CN201721869985.7U patent/CN207960628U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578035A (en) * | 2018-11-06 | 2019-04-05 | 四川路航建设工程有限责任公司 | Steel pipe draining lock foot stake and construction method |
| CN109578035B (en) * | 2018-11-06 | 2024-04-30 | 四川路航建设工程有限责任公司 | Steel pipe drainage lock foot pile and construction method |
| CN109653749A (en) * | 2018-11-30 | 2019-04-19 | 中铁二局第五工程有限公司 | A kind of loose slide rock rubble soil section tunnel excavation construction method of high altitude localities shallow embedding |
| CN109826657A (en) * | 2019-03-08 | 2019-05-31 | 西南交通大学 | One kind being used for soft rock tunnel solidifying of the working face device and its construction method |
| CN112324471A (en) * | 2020-12-15 | 2021-02-05 | 中铁第一勘察设计院集团有限公司 | Tunnel face advanced precipitation anchor rod for water-rich red sandstone stratum and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207960628U (en) | Tunnel tunnel face pre-add fixing structure | |
| CN107762533B (en) | A kind of front pre-grouting method of high-pressure water-enriched weak surrounding rock mountain tunnel | |
| CN103334770B (en) | One is grown up reverse-slope tunnel ultra high water pressure rich water zone of fracture construction method | |
| CN106499413B (en) | A kind of Shallow-buried section tunnel stratum consolidation construction method | |
| CN106437726B (en) | Shallow-depth-excavation tunnel crosses ground fissure crushed zone construction method | |
| CN102808628B (en) | Construction method of passage of large-section tunnel by water diversion fault | |
| CN206174963U (en) | Cross shallow undercut tunnel supporting construction of burying of ground fissure crushed zone | |
| CN107060774B (en) | A kind of anti-tunnel portal wall damage device and construction method | |
| CN105781571A (en) | Construction method for soft rock deformation tunnel lining support dismantling-replacing arch | |
| CN202866826U (en) | Shield tunnel working well outer end socket stratum reinforced structure | |
| CN103032097B (en) | Be applicable to tunnel drainage structure and the construction method thereof of bias voltage water rich strata | |
| CN105041325A (en) | Construction method of high-tension water-rich extra-large-section weak breccia tunnel | |
| CN206487508U (en) | A kind of draining steel pipe device for rich water class earth tunnel face | |
| CN105155563A (en) | Reinforcing and treating method for water burst of soft-flow muddy stratum of foundation pit | |
| CN103758123A (en) | Method for constructing protecting wall lining of cast-in-place manual hole digging pile | |
| CN103981782A (en) | Method and structure for reinforcing flat hole grouting roadbed without damaging road surface | |
| CN104234062A (en) | Landslide control method of ionic type rare earth in-situ mineral leaching stope | |
| CN104533451A (en) | Tunnel advance pre-supporting technology used in discrete gravelly soil and broken surrounding rock | |
| CN208965598U (en) | The Anti-seeping technology structure of grout curtain and underground chamber intersection area | |
| CN106988760A (en) | Facility-sliding strata tunnel portal reinforcing construction and construction method | |
| CN108678753B (en) | Reverse-slope tunnel construction method | |
| CN105484266B (en) | The grouting equipment and its construction method of a kind of multifunctional information | |
| CN115539048A (en) | Construction method for shallow-buried bias tunnel portal | |
| CN109339800A (en) | A kind of Rapid Construction of Tunnels method in the connected section of bridge tunnel | |
| CN107829747A (en) | Construction method suitable for shallow-buried underground excavation tunnel in expansive soil area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20181012 Termination date: 20201228 |