CN109139041A - A method of improving jacking pipe joints globality - Google Patents
A method of improving jacking pipe joints globality Download PDFInfo
- Publication number
- CN109139041A CN109139041A CN201810995231.9A CN201810995231A CN109139041A CN 109139041 A CN109139041 A CN 109139041A CN 201810995231 A CN201810995231 A CN 201810995231A CN 109139041 A CN109139041 A CN 109139041A
- Authority
- CN
- China
- Prior art keywords
- pipe joints
- jacking pipe
- tunnel
- prestressing force
- jacking
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
Abstract
The invention discloses a kind of methods for improving jacking pipe joints globality, include the following steps: S1, in the manufacturing process of jacking pipe joints, the prestressing force hole at several perforation jacking pipe joints both ends is reserved on the tube wall of each jacking pipe joints, and the position of the prestressing force hole of each jacking pipe joints corresponds；S2, using prepared jacking pipe joints, the construction in tunnel is completed by the way of jacking construction；S3, respectively with prestress anchorage cable pass through each jacking pipe joints in the corresponding prestressing force hole in position, the both ends in the tunnel first constructed are exposed at the both ends of each prestress anchorage cable respectively；S4, the both ends simultaneous tension prestress anchorage cable in tunnel；S5, using prestressing force pretensioning method, finally by prestress anchorage cable tensioning to pre-stress design controlling value；S6, the last casting concrete in prestressing force hole.The present invention can effectively improve the globality of tunnel structure, with the lateral force that construction tunnel work progress after resistance generates, be particularly suitable for the pipe-jacking project of left and right tunnel spacing very little.
Description
Technical field
The present invention relates to technical field of tunnel construction, and in particular to a method of improve jacking pipe joints globality.
Background technique
In some pipe-jacking projects, left and right tunnel spacing very little (such as 10cm), after the completion of a tunnel, an other tunnel
Road can generate extruding to the soil body on periphery during jacking construction, to generate one to the structure in the tunnel that side is first completed
A lateral force, this is likely to result in the tunnel first completed being generated uneven offset by the tube coupling of lateral force and other tube couplings,
The accident integrally destroyed in tunnel even occurs, it is therefore necessary to take method to improve the globality of the structure in the tunnel first constructed, with
The lateral force that construction tunnel work progress generates after resistance.
Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of method for improving jacking pipe joints globality, Ke Yiyou
Effect improves the globality of tunnel structure, with the lateral force that construction tunnel work progress after resistance generates, is particularly suitable for left and right tunnel
The pipe-jacking project of road spacing very little.
To achieve the goals above, the present invention adopts the following technical scheme:
A method of jacking pipe joints globality is improved, is included the following steps:
S1, in the manufacturing process of jacking pipe joints, several perforations push pipes are reserved on the tube wall of each jacking pipe joints
The prestressing force hole at tube coupling both ends, and the position of the prestressing force hole of each jacking pipe joints corresponds；
S2, using the prepared jacking pipe joints of step S1, the construction in tunnel is completed by the way of jacking construction；
S3, respectively with prestress anchorage cable pass through each jacking pipe joints in the corresponding prestressing force hole in position, each prestressing force
Expose the both ends in the tunnel first constructed respectively in the both ends of anchor cable；
S4, the both ends simultaneous tension prestress anchorage cable in tunnel；
S5, using prestressing force pretensioning method, finally by prestress anchorage cable tensioning to pre-stress design controlling value；
The structure of S6, the casting concrete in prestressing force hole, tunnel substantially increase under the action of prestress anchorage cable
Globality.
Further, in step S1, several perforation jacking pipe joints two specifically are reserved around the even tube wall of jacking pipe joints
The prestressing force hole at end.
Further, in step S3, tapered reamer is installed on the anchor cable head of prestress anchorage cable, utilizes tapered reamer
Prestress anchorage cable is passed through to the prestressing force hole reserved in jacking pipe joints.
The beneficial effects of the present invention are: it can effectively improve the globality of tunnel structure through the invention, after resisting
The lateral force that construction tunnel work progress generates, is particularly suitable for the pipe-jacking project of left and right tunnel spacing very little.
Detailed description of the invention
Fig. 1 is the prefabricated jacking pipe joints front schematic view obtained of step S1 in the embodiment of the present invention；
Fig. 2 is the tunnel schematic top plan view in the embodiment of the present invention after the completion of step S3；
Fig. 3 is the scheme of installation that prestress anchorage cable loads onto tapered reamer in the embodiment of the present invention.
Specific embodiment
Below with reference to attached drawing, the invention will be further described, it should be noted that following embodiment is with this technology
Premised on scheme, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to this
Embodiment.
A method of jacking pipe joints globality is improved, is included the following steps:
S1, as shown in Figure 1, in the manufacturing process of jacking pipe joints 100, reserved on the tube wall of each jacking pipe joints 100
The prestressing force hole 101 at several perforation 100 both ends of jacking pipe joints, and the position of the prestressing force hole 101 of each jacking pipe joints
Set one-to-one correspondence；
In practical applications, as shown in Fig. 2, tunnel is usually made of multiple jacking pipe joints 100, need to guarantee each push pipe
The position of the prestressing force hole of tube coupling corresponds, and can pass through each jacking pipe joints convenient for prestress anchorage cable to pass through
Entire tunnel；
S2, using the prepared jacking pipe joints 100 of step S1, the tunnel first constructed is completed by the way of jacking construction
200 construction；
S3, prestress anchorage cable 102 is used to pass through the corresponding prestressing force hole 101 in position in each jacking pipe joints 100 respectively, respectively
Expose the both ends in the tunnel 200 first constructed respectively in the both ends 1021 of root prestress anchorage cable 102；
S4, the tunnel 200 formerly constructed both ends simultaneous tension prestress anchorage cable 102 both ends 1021；
S5, using prestressing force pretensioning method, finally by 102 tensioning of prestress anchorage cable to pre-stress design controlling value；
S6, the casting concrete in prestressing force hole 101, the structure in the tunnel 200 first constructed is in prestress anchorage cable 102
Globality is substantially increased under effect, the lateral force that the tunnel so as to construct after being effective against is generated in work progress, especially
It is suitable for the pipe-jacking projects of left and right tunnel spacing very little.
Further, in step S1, several perforation jacking pipe joints specifically are reserved around the even tube wall of jacking pipe joints 100
The prestressing force hole 101 at both ends, as shown in Figure 1.
Further, in step S3, tapered reamer 103 is installed on the anchor cable head of prestress anchorage cable 102, utilizes taper
Prestress anchorage cable 102 is passed through the prestressing force hole 101 reserved in jacking pipe joints 100 by reamer 103, as shown in Figure 3.
For those skilled in the art, it can be provided various corresponding according to above technical solution and design
Change and modification, and all these change and modification, should be construed as being included within the scope of protection of the claims of the present invention.
Claims (3)
1. a kind of method for improving jacking pipe joints globality, which comprises the steps of:
S1, in the manufacturing process of jacking pipe joints, several perforations jacking pipe joints are reserved on the tube wall of each jacking pipe joints
The prestressing force hole at both ends, and the position of the prestressing force hole of each jacking pipe joints corresponds；
S2, using the prepared jacking pipe joints of step S1, the construction in tunnel is completed by the way of jacking construction；
S3, respectively with prestress anchorage cable pass through each jacking pipe joints in the corresponding prestressing force hole in position, each prestress anchorage cable
Both ends expose the both ends in the tunnel first constructed respectively；
S4, the both ends simultaneous tension prestress anchorage cable in tunnel；
S5, using prestressing force pretensioning method, finally by prestress anchorage cable tensioning to pre-stress design controlling value；
S6, the last casting concrete in prestressing force hole.
2. the method according to claim 1 for improving jacking pipe joints globality, which is characterized in that in step S1, specifically
The prestressing force hole at several perforation jacking pipe joints both ends is reserved around the even tube wall of jacking pipe joints.
3. the method according to claim 1 for improving jacking pipe joints globality, which is characterized in that in step S3, answering in advance
Tapered reamer is installed on the anchor cable head of power anchor cable, is reserved prestress anchorage cable in jacking pipe joints using tapered reamer
Prestressing force hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995231.9A CN109139041A (en) | 2018-08-29 | 2018-08-29 | A method of improving jacking pipe joints globality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995231.9A CN109139041A (en) | 2018-08-29 | 2018-08-29 | A method of improving jacking pipe joints globality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139041A true CN109139041A (en) | 2019-01-04 |
Family
ID=64829014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810995231.9A Pending CN109139041A (en) | 2018-08-29 | 2018-08-29 | A method of improving jacking pipe joints globality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139041A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520539A (en) * | 2020-05-09 | 2020-08-11 | 无锡市锡山三建实业有限公司 | Device for jacking construction of pipeline |
| CN112253166A (en) * | 2020-10-23 | 2021-01-22 | 中铁工程装备集团有限公司 | Prefabricated coupling device between pipe joints and construction method applying prefabricated coupling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392654A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | Shield tunnel segment lining-anchor rod structure system |
| CN204476444U (en) * | 2015-01-30 | 2015-07-15 | 安徽理工大学 | A kind of self-drilling hollow grouting cable anchor |
| CN104976424A (en) * | 2015-05-15 | 2015-10-14 | 中铁二局股份有限公司 | Anchor cable construction method for rectangular top pipe joint connecting and strengthening |
| CN106948343A (en) * | 2017-04-20 | 2017-07-14 | 大连理工大学 | The tonnage anchor cable and peace method processed of a kind of tension and compression combination bearing mode |
-
2018
- 2018-08-29 CN CN201810995231.9A patent/CN109139041A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392654A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | Shield tunnel segment lining-anchor rod structure system |
| CN204476444U (en) * | 2015-01-30 | 2015-07-15 | 安徽理工大学 | A kind of self-drilling hollow grouting cable anchor |
| CN104976424A (en) * | 2015-05-15 | 2015-10-14 | 中铁二局股份有限公司 | Anchor cable construction method for rectangular top pipe joint connecting and strengthening |
| CN106948343A (en) * | 2017-04-20 | 2017-07-14 | 大连理工大学 | The tonnage anchor cable and peace method processed of a kind of tension and compression combination bearing mode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520539A (en) * | 2020-05-09 | 2020-08-11 | 无锡市锡山三建实业有限公司 | Device for jacking construction of pipeline |
| CN112253166A (en) * | 2020-10-23 | 2021-01-22 | 中铁工程装备集团有限公司 | Prefabricated coupling device between pipe joints and construction method applying prefabricated coupling device |
| CN112253166B (en) * | 2020-10-23 | 2022-03-04 | 中铁工程装备集团有限公司 | Prefabricated coupling device between pipe joints and construction method applying prefabricated coupling device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190104 |