CN110374631A - Row tunnel pre-grouting construction method after a kind of soft stratum small-clear-distance tunnel - Google Patents
Row tunnel pre-grouting construction method after a kind of soft stratum small-clear-distance tunnel Download PDFInfo
- Publication number
- CN110374631A CN110374631A CN201910556308.7A CN201910556308A CN110374631A CN 110374631 A CN110374631 A CN 110374631A CN 201910556308 A CN201910556308 A CN 201910556308A CN 110374631 A CN110374631 A CN 110374631A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- grouting
- slip casting
- row
- clear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- E21D11/04—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
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The present invention is suitable for Tunnel Engineering technical field, provides row tunnel pre-grouting construction method after a kind of soft stratum small-clear-distance tunnel.Slip casting is after branch closing cyclization at the beginning of leading tunnel, and two linings pour preceding progress, and leading tunnel grouting fixing collar, just branch also serves as wall for grouting.The construction method includes the following steps: a, the side wall position setting-out alignment in the leading tunnel of small interval, marks injected hole hole location；B, according to design hole location and slip casting orifice angle, drilling machine position and dilling angle are adjusted, row tunnel direction sets injected hole backward from leading tunnel side wall position using drilling machine；C, mini-valve tube is installed in injected hole；D, capsule material is perfused；E, by Grouting Pipe, row tunnel direction carries out segmenting slip casting backward.By the side wall position of leading tunnel, row tunnel direction performs injected hole to the present invention backward, and by Grouting Pipe, row tunnel direction carries out slip casting and substantially shortens the construction period to reduce influence of the row tunnel mortar depositing construction to the whole duration after small-clear-distance tunnel backward.
Description
Technical field
The invention belongs to row tunnel after Tunnel Engineering technical field more particularly to a kind of soft stratum small-clear-distance tunnel is advanced
Grouting construction method.
Background technique
Pre-grouting is passed the imperial examinations at the provincial level as a kind of important water blockoff of soft stratum bored tunnel and stratum consolidation measure in tunnel construction
Sufficient weight.Conventional pre-grouting construction method is to perform injected hole forward at tunnel tunnel face to carry out pre-grouting, by dark
The limitation of excavation construction process characteristic, tunnel tunnel face is as unique operation side, and when carrying out pre-grouting construction, face is opened
The operations such as digging, supporting need to stop, after be excavated after the completion of pre-grouting.It is logical due to longer the time required to pre-grouting
Often every circulation slip casting needed for one to two weeks, and mortar depositing construction significantly impacts Tunnel Construction Schedule, causes claim for eot, bring indirectly
Unnecessary economic loss.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing row tunnel after a kind of soft stratum small-clear-distance tunnel
Pre-grouting construction method, it is intended to solve the soft stratum small-clear-distance tunnel pre-grouting construction method extreme influence of the prior art
Tunnel Construction Schedule, the problem of causing claim for eot and bring unnecessary economic loss indirectly.
The embodiments of the present invention are implemented as follows, and row tunnel pre-grouting is applied after providing a kind of soft stratum small-clear-distance tunnel
Work method, which comprises the steps of:
A, the side wall position setting-out alignment of the leading tunnel of small interval propped up at the beginning of performing the leading tunnel of completion, marks injected hole
Hole location；
B, according to design hole location and slip casting orifice angle, drilling machine position and dilling angle are adjusted, using drilling machine from leading tunnel
Row tunnel direction sets injected hole backward at side wall position；
C, mini-valve tube is installed in the injected hole；
D, capsule material is perfused；
E, by the Grouting Pipe, row tunnel direction carries out segmenting slip casting backward.
Further, axis of the Grouting Pipe perpendicular to rear row tunnel.
Further, the Grouting Pipe uses plastic material.
Further, the Grouting Pipe is laid in the injected hole using blossom type.
Further, in the step e, in slip casting from rear row tunnel top, bottom toward the layer-by-layer slip casting in middle part.
Further, in the step e, slurry casting machine is sent to the mini-valve tube bottom when slip casting, after being then segmented
Formula slip casting is moved back, slip casting order every time must one injected hole progress slip casting of tripping.
Further, before mortar depositing construction, grouting test is carried out, determines and optimize grouting parameter.
Further, the Grouting Pipe includes Grouting Pipe slip casting section and the non-slip casting section of Grouting Pipe, the Grouting Pipe slip casting section
After being arranged in row tunnel, the non-slip casting section of Grouting Pipe is arranged in the side wall position and neighbouring country rock of leading tunnel.
Further, in the step b, after branch closing cyclization at the beginning of carrying out leading tunnel in leading tunnel, secondary lining
Before course pours, from the side wall position of leading tunnel, row tunnel direction performs injected hole backward；
Further, it before the step a, is determined between slip casting dilation angle, Grouting Pipe arrangement according to country rock infiltration coefficient
Away from, every Grouting Pipe grouting amount, according to leading tunnel and rear row tunnel mutual alignment relation, rear row tunnel grouting reinforced region range
It determines slip casting length of tube, slip casting tube angulation, every Grouting Pipe slip casting segment length parameter, and formulates detailed injected hole arrangement；
Further, leading tunnel grouting fixing collar and leading tunnel, which just prop up, also serves as wall for grouting.
Compared with prior art, beneficial effect is the embodiment of the present invention: the present invention is infused in soft stratum small-clear-distance tunnel
Starch in work progress, can by the side wall position of leading tunnel, row tunnel direction performs injected hole backward, backward by Grouting Pipe
Row tunnel direction carries out slip casting, to reduce influence of the row tunnel mortar depositing construction to the whole duration after small-clear-distance tunnel, operation letter
List, difficulty of construction is low, exploitativeness is high, consolidation effect is good, and does not increase project cost additionally, can substantially shorten construction work
Phase has application value.
Detailed description of the invention
Fig. 1 is row tunnel pre-grouting construction section signal after soft stratum small-clear-distance tunnel provided in an embodiment of the present invention
Figure；
Fig. 2 is that the injected hole at the side wall position of leading tunnel provided in an embodiment of the present invention lays elevational schematic view.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It as shown in Figures 1 and 2, is that row tunnel is advanced after a kind of soft stratum small-clear-distance tunnel provided in an embodiment of the present invention
Grouting construction method, the construction method include the following steps:
A, the side wall position setting-out alignment of the leading tunnel 1 of small interval propped up at the beginning of performing the leading tunnel of completion, marks slip casting
6 hole location of hole, injected hole 6 are laid using blossom type；
B, according to design hole location and 6 angle of injected hole, drilling machine position and dilling angle are adjusted, using drilling machine from leading tunnel
1 side wall position sets injected hole 6 in 4 direction of row tunnel backward；
C, mini-valve tube is installed in injected hole 6；
D, capsule material is perfused.
E, by Grouting Pipe 7,4 direction of row tunnel carries out segmenting slip casting backward.
In above-described embodiment, Grouting Pipe 7 includes Grouting Pipe slip casting section 71 and the non-slip casting section 72 of Grouting Pipe, Grouting Pipe slip casting section
71 be arranged in after in row tunnel 4, the non-slip casting section 72 of Grouting Pipe is arranged in the side wall position and neighbouring country rock A of leading tunnel 1.Note
It starches pipe 7 and uses plastic material, the excavation of row tunnel 4 after being convenient for, injected hole 6 is laid using blossom type.
In above-described embodiment, before mortar depositing construction, grouting test is carried out, determines and optimize grouting parameter.In step e,
In slip casting from rear row tunnel 4 top, bottom toward the layer-by-layer slip casting in middle part, in slip casting, slurry casting machine is sent to mini-valve tube bottom, then into
Row segmentation retrusive slip casting, slip casting order, necessary one injected hole 6 of tripping carries out slip casting every time, to prevent string hole leakage when slip casting
Slurry.
It is secondary after propping up 2 closing cyclization in stepb, at the beginning of carrying out leading tunnel in leading tunnel 1 in above-described embodiment
Before lining cutting layer pours, injected hole 6 is performed in 4 direction of row tunnel backward from the side wall position of leading tunnel 1；Leading tunnel grouting and reinforcing
Circle 3 and leading tunnel just prop up 2 and also serve as wall for grouting.
In above-described embodiment, before step a, determine that slip casting dilation angle, Grouting Pipe 7 are arranged according to country rock A infiltration coefficient
Spacing, every 7 grouting amount of Grouting Pipe, according to leading tunnel 1 and rear 4 mutual alignment relation of row tunnel, rear row tunnel grouting and reinforcing
It encloses 5 ranges and determines 7 length of Grouting Pipe, 7 angle of Grouting Pipe, every 71 length parameter of Grouting Pipe slip casting section, and formulate detailed slip casting
6 arrangement of hole.
In conclusion the present invention is during soft stratum small-clear-distance tunnel mortar depositing construction, using sleeve valve barrel grouting technique,
Injected hole 6 is performed in 4 direction of row tunnel backward by the side wall position of leading tunnel 1, passes through 4 direction of row tunnel backward of Grouting Pipe 7
Slip casting is carried out, to reduce influence of 4 mortar depositing construction of row tunnel to the whole duration after small-clear-distance tunnel, easy to operate, construction hardly possible
It spends that low, exploitativeness is high, consolidation effect is good, and does not increase project cost additionally, can substantially shorten the construction period, have and promote
Application value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (11)
1. row tunnel pre-grouting construction method after a kind of soft stratum small-clear-distance tunnel, which comprises the steps of:
A, the side wall position setting-out alignment of the leading tunnel of small interval propped up at the beginning of performing the leading tunnel of completion, marks injected hole hole
Position；
B, according to design hole location and slip casting orifice angle, drilling machine position and dilling angle are adjusted, using drilling machine from leading tunnel side wall
Row tunnel direction sets injected hole backward at position；
C, mini-valve tube is installed in the injected hole；
D, capsule material is perfused；
E, by the Grouting Pipe, row tunnel direction carries out segmenting slip casting backward.
2. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
Axis of the Grouting Pipe perpendicular to rear row tunnel.
3. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
The Grouting Pipe uses plastic material.
4. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
The Grouting Pipe is laid in the injected hole using blossom type.
5. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
In the step e, in slip casting from rear row tunnel top, bottom toward the layer-by-layer slip casting in middle part.
6. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
In the step e, when slip casting, send slurry casting machine to the mini-valve tube bottom, then carries out segmentation retrusive slip casting, slip casting order,
It every time must one injected hole progress slip casting of tripping.
7. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
Before mortar depositing construction, grouting test is carried out, determines and optimize grouting parameter.
8. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
The Grouting Pipe includes Grouting Pipe slip casting section and the non-slip casting section of Grouting Pipe, after the Grouting Pipe slip casting section is arranged in row tunnel,
The non-slip casting section of Grouting Pipe is arranged in the side wall position and neighbouring country rock of leading tunnel.
9. row tunnel pre-grouting construction method after soft stratum small-clear-distance tunnel as described in claim 1, which is characterized in that
In the step b, after branch closing cyclization at the beginning of carrying out leading tunnel in leading tunnel, before secondary lining layer pours, from leading
Row tunnel direction performs injected hole backward at the side wall position of tunnel.
10. row tunnel pre-grouting construction party after soft stratum small-clear-distance tunnel as in one of claimed in any of claims 1 to 9
Method, which is characterized in that before the step a, according to country rock infiltration coefficient determine slip casting dilation angle, Grouting Pipe arrangement spacing,
Every Grouting Pipe grouting amount, it is true according to leading tunnel and rear row tunnel mutual alignment relation, rear row tunnel grouting reinforced region range
Determine slip casting length of tube, slip casting tube angulation, every Grouting Pipe slip casting segment length parameter, and formulates detailed injected hole arrangement.
11. row tunnel pre-grouting construction method, feature exist after soft stratum small-clear-distance tunnel as claimed in claim 9
In leading tunnel grouting fixing collar and leading tunnel just prop up and also serve as wall for grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556308.7A CN110374631B (en) | 2019-06-25 | 2019-06-25 | Advanced grouting construction method for backward tunnel of small clear distance tunnel in weak stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556308.7A CN110374631B (en) | 2019-06-25 | 2019-06-25 | Advanced grouting construction method for backward tunnel of small clear distance tunnel in weak stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374631A true CN110374631A (en) | 2019-10-25 |
| CN110374631B CN110374631B (en) | 2020-09-29 |
Family
ID=68249340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910556308.7A Active CN110374631B (en) | 2019-06-25 | 2019-06-25 | Advanced grouting construction method for backward tunnel of small clear distance tunnel in weak stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374631B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682055A (en) * | 2021-03-22 | 2021-04-20 | 中铁九局集团第四工程有限公司 | Small-clear-distance parallel tunnel shield tunneling construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03166494A (en) * | 1989-11-22 | 1991-07-18 | Daiho Constr Co Ltd | Multiple connected underground excavator |
| CN202520317U (en) * | 2012-02-17 | 2012-11-07 | 中国建筑第六工程局有限公司 | Minimum-clear-distance tunnel rear hole excavating construction structure |
| CN102966360A (en) * | 2012-11-26 | 2013-03-13 | 中铁四局集团第二工程有限公司 | Method for reinforcing rock walls in neighborhood tunnel |
| CN104847365A (en) * | 2015-05-20 | 2015-08-19 | 深圳市市政设计研究院有限公司 | Construction method for small-clear-distance four-lane shallow-buried large-span tunnel |
| CN204646253U (en) * | 2015-05-20 | 2015-09-16 | 深圳市市政设计研究院有限公司 | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel structure |
| CN106050240A (en) * | 2016-05-11 | 2016-10-26 | 上海交通大学 | Stability control method for mountainous area weak surrounding rock small-distance tunnel mid-adjacent rock |
| CN109826635A (en) * | 2019-03-08 | 2019-05-31 | 中铁十二局集团有限公司 | Reinforce the construction method for the shield reception space periphery soil body that subsurface excavation method applies |
-
2019
- 2019-06-25 CN CN201910556308.7A patent/CN110374631B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03166494A (en) * | 1989-11-22 | 1991-07-18 | Daiho Constr Co Ltd | Multiple connected underground excavator |
| CN202520317U (en) * | 2012-02-17 | 2012-11-07 | 中国建筑第六工程局有限公司 | Minimum-clear-distance tunnel rear hole excavating construction structure |
| CN102966360A (en) * | 2012-11-26 | 2013-03-13 | 中铁四局集团第二工程有限公司 | Method for reinforcing rock walls in neighborhood tunnel |
| CN104847365A (en) * | 2015-05-20 | 2015-08-19 | 深圳市市政设计研究院有限公司 | Construction method for small-clear-distance four-lane shallow-buried large-span tunnel |
| CN204646253U (en) * | 2015-05-20 | 2015-09-16 | 深圳市市政设计研究院有限公司 | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel structure |
| CN106050240A (en) * | 2016-05-11 | 2016-10-26 | 上海交通大学 | Stability control method for mountainous area weak surrounding rock small-distance tunnel mid-adjacent rock |
| CN109826635A (en) * | 2019-03-08 | 2019-05-31 | 中铁十二局集团有限公司 | Reinforce the construction method for the shield reception space periphery soil body that subsurface excavation method applies |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682055A (en) * | 2021-03-22 | 2021-04-20 | 中铁九局集团第四工程有限公司 | Small-clear-distance parallel tunnel shield tunneling construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110374631B (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101832142B (en) | Tunnel information tracing accurate grouting method | |
| CN101798930B (en) | Rapid construction method of high-pressure water-rich fault zone of tunnel | |
| CN103334770B (en) | One is grown up reverse-slope tunnel ultra high water pressure rich water zone of fracture construction method | |
| CN110230309A (en) | Karst region bridge solution cavity pile base construction method | |
| CN102562099B (en) | Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits | |
| CN105200978B (en) | A kind of protrusive localization two-liquid grouting device and construction method | |
| CN104975594B (en) | A kind of Grouting Pipe and construction method for miscellaneous fill stratum | |
| CN208380586U (en) | A kind of tunnel lining trolley vault comprehensive grouting pipe device | |
| CN111119940B (en) | Grouting construction treatment method | |
| CN105863648B (en) | A kind of tunneling is shallow to cover large-section tunnel construction method | |
| CN110130936A (en) | It dashes forward in a kind of shield tunneling process and meets the construction method of untreated solution cavity or crack | |
| CN107762533A (en) | A kind of front pre-grouting method of high-pressure water-enriched weak surrounding rock mountain tunnel | |
| CN107725056A (en) | One kind passes through silly stratum tunnel loopful quick grouting construction method in advance | |
| CN109630193A (en) | Subway Tunnel service channel excavates the administering method for water burst phenomenon occur | |
| CN105626096A (en) | Pea gravel hydraulic filling construction process for TBM | |
| CN104453946A (en) | Advanced reinforcing construction method for building tunnel in soft surrounding rock | |
| CN110067564A (en) | A kind of soft rock large cross-section tunnel big machinery melts cut construction method | |
| CN110295597A (en) | Close to buildings Soft Clay pattern foundation pit supporting structure steel sheet pile is pulled out and grouting strengthening method | |
| CN108612545B (en) | A kind of sand-pebble layer passes through the compound slip-casting lifting engineering method of existing facility active control | |
| CN208965598U (en) | The Anti-seeping technology structure of grout curtain and underground chamber intersection area | |
| CN110261403A (en) | A kind of device and method for grouting construction stage detection sleeve grouting full weight | |
| CN110374631A (en) | Row tunnel pre-grouting construction method after a kind of soft stratum small-clear-distance tunnel | |
| CN105909265A (en) | Heaving-prevention retrusive deep-hole grouting system and method for passing through existing shield tunnel | |
| CN107938649A (en) | A kind of solution cavity foundation reinforcement method | |
| CN107675703B (en) | Rectangular anti-slide pile construction method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Unit 1205, block C, building 1, Xinghe legend Garden Phase III, Longtang community, Minzhi street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen comprehensive transportation and municipal engineering design and Research Institute Co.,Ltd. Address before: 518000 No.9 Tianbei 4th Road, Luohu District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TRANSPORTATION DESIGN & RESEARCH INSTITUTE Co.,Ltd. |