CN102979529B - Jacking device of tunnel measuring hole and construction method thereof - Google Patents
Jacking device of tunnel measuring hole and construction method thereof Download PDFInfo
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- CN102979529B CN102979529B CN201210507259.6A CN201210507259A CN102979529B CN 102979529 B CN102979529 B CN 102979529B CN 201210507259 A CN201210507259 A CN 201210507259A CN 102979529 B CN102979529 B CN 102979529B
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- seal ring
- jack
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- jacking
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a jacking device of a tunnel measuring hole and a construction method thereof. The invention belongs to the technical field of tunnel measurement. The jacking device of the tunnel measuring hole is characterized by comprising a pre-embedded part, a seal ring, a steel pipe and a jack; the pre-embedded part is pre-embedded inside a duct segment and sleeved at the end part of the steel pipe; the seal ring is sleeved at the outer side of the steel pipe; the seal ring is connected with the pre-embedded part, and the lower part of the steel pipe is supported by the jack. The jacking construction method of the tunnel measurement hole is characterized by comprising the processes of embedding the pre-embedded part, fixedly installing a jacking device frame body, installing the seal ring, and welding and jacking the steel pipe. The jacking device has the advantages of being simple in structure, convenient to construct, wide in application range, high in construction efficiency and the like. Error control of late tunnel breakthrough is greatly improved by this method; zero error of a planimetric position of a tunnel breakthrough gesture is finally achieved, and the breakthrough accuracy of long-distance tunnel excavation is also guaranteed.
Description
Technical field
The invention belongs to tunnel survey technical field, particularly relate to a kind of tunnel survey hole lift-up device and construction method thereof.
Background technology
At present, in long-distance shield structure tunneling construction, due to the accumulation of measure error, the tunnel that more than 1500 linear meter(lin.m.)s have been carried out by connection survey orientation in simple slave site side can not meet holing through survey poor demand limit, the requirement of foundation " code for engineering surveying of subway and lignt " (GB50308-2008) and constructure scheme, easily cause accumulated error cannot complete tunnel holing through work smoothly more greatly, the technical problems such as the engineering construction efficiency had a strong impact on and programming, even can cause other construction works accidents etc.
Summary of the invention
The present invention provides a kind of tunnel survey hole lift-up device and construction method thereof for solving in known technology the technical problem that exists.
Jacking built-in fitting of the present invention is made up of two parts, is divided into: the spacing steel ring of built-in fitting, built-in fitting jacking drill bit.
Seal ring is made up of two parts equally, and concrete composition is: spacing steel plate and strain at device, and each several part assembly center line overlaps with tunnel center line and built-in fitting center line.
An object of the present invention is to provide has structure simply, the tunnel survey hole lift-up device of the features such as assemble compact, easy construction, error is little, economic and practical, applied widely.
The technical scheme that tunnel survey hole of the present invention lift-up device is taked is:
A kind of tunnel survey hole lift-up device, is characterized in: lift-up device comprises built-in fitting, seal ring, steel pipe and jack; Built-in fitting inside, pre-buried section of jurisdiction is also sleeved on steel tube end part, and seal ring is sleeved on outside steel pipe, and seal ring connects built-in fitting, is supported below steel pipe by jack
Tunnel survey hole of the present invention lift-up device can also adopt following technical scheme:
Described tunnel survey hole lift-up device, be characterized in: built-in fitting is made up of spacing steel ring and jacking drill bit, jacking drill bit supports steel ring by jacking drill bit cap and jacking drill bit and forms, and spacing steel ring is positioned at below jacking drill bit cap, is positioned at jacking drill bit and supports outside steel ring.
Described tunnel survey hole lift-up device, is characterized in: the upper surface that spacing steel ring contacts with jacking drill bit cap is provided with seal groove.
Described tunnel survey hole lift-up device, is characterized in: spacing steel ring upper surface seal groove is built with O RunddichtringO.
Described tunnel survey hole lift-up device, be characterized in: seal ring is made up of upper seal ring and lower seal ring, upper seal ring and lower seal ring are respectively by spacing steel plate with strain at mechanism and form, and upper seal ring and lower seal ring are nesting type structure, fit together by straining at mechanism.
Described tunnel survey hole lift-up device, is characterized in: jack is supported by cylinder bracket, and bottom is provided with steel and runs plate.
Two of object of the present invention is to provide has easy construction, error is little, applied widely, greatly can improve the control errors of later stage tunnel holing through, finally ensure that the zero error of tunnel holing through attitude plan-position, the tunnel survey hole jack-up construction method of efficiency of construction high.
The technical scheme that tunnel survey hole of the present invention jack-up construction method is taked is:
A kind of tunnel survey hole jack-up construction method, is characterized in that jack-up construction method comprises that built-in fitting is buried underground, the fixed installation of Lifting Equipment support body, seal ring installs and steel-pipe welding jacking process:
Built-in fitting is buried underground: imbed in section of jurisdiction by built-in fitting in advance, and surrounding and section of jurisdiction reinforcement welding firmly, and add reinforcing muscle; Then with fine-stone concrete, space is clogged;
Lifting Equipment support body fixedly mounts: install Lifting Equipment, and Lifting Equipment supports fixing with cylinder bracket;
Seal ring is installed: dress seal ring nested type is equipped with on steel pipe, fits together by straining at mechanism's tension;
Steel-pipe welding jacking: adopt seamless steel pipe, coupling electric welding connects, the dead in line of a rear joint steel pipe and last joint steel pipe; Then by Lifting Equipment jacking built-in fitting, tunnel measured hole jack-up construction is completed.
Tunnel survey hole of the present invention jack-up construction method can also adopt following technical scheme:
Described tunnel survey hole jack-up construction method, is characterized in: after jack-up construction, utilizes the Grouting Pipe in tunnel to carry out grouting and reinforcing to the soil body dual slurry near jacking hole, makes soil solidifying outside tunnel.
Described tunnel survey hole jack-up construction method, is characterized in: Lifting Equipment is 100-300 ton two-stroke jack, and jack stroke is 3-5m, steel is housed bottom jack and runs plate.
Described tunnel survey hole jack-up construction method, be characterized in: during steel-pipe welding, groove is carried out in coupling, steel pipe single-unit length 2-5m.
The advantage that the present invention has and good effect are:
Tunnel survey hole lift-up device and construction method thereof, owing to have employed the brand-new technical scheme of the present invention, compared with prior art, have employed after measuring jacking hole technical scheme, compared with original connection survey performance data, it is simple that the present invention has structure, assembles compact, easy construction, error is little, economic and practical, the advantage such as applied widely, adopts the method to substantially increase the control errors of later stage tunnel holing through, finally ensure that the zero error of tunnel holing through attitude plan-position, efficiency of construction is high.
Accompanying drawing explanation
Fig. 1 is tunnel survey hole lift-up device structural representation;
Fig. 2 is steel beam column structural representation;
Fig. 3 is embedded part structure schematic diagram in section of jurisdiction;
Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3;
Fig. 5 is jacking drill bit structure schematic diagram;
Fig. 6 is lower seal ring TV structure schematic diagram;
Fig. 7 is the B-B sectional structure schematic diagram of Fig. 6;
Fig. 8 is upper seal ring TV structure schematic diagram;
Fig. 9 is the C-C sectional structure schematic diagram of Fig. 8.
In figure, 1, cylinder bracket, 2, jacking block, 3, steel runs plate, and 4, jack, 5, steel pipe, 6,7, jacking drill bit, 7.1, jacking drill bit cap, 7.2, jacking drill bit supports steel ring, 8,9, lower seal ring, 10, fine-stone concrete, 11, O RunddichtringO, 12,13,14, spacing steel ring, 15, upper seal ring.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Accompanying drawings 1 to Fig. 9.
Embodiment 1
A kind of tunnel survey hole lift-up device, comprises built-in fitting, seal ring, steel pipe and jack; Built-in fitting is sleeved on steel tube end part, and seal ring is sleeved on steel pipe 5, and seal ring connects built-in fitting, is supported below steel pipe by jack 4.Jack 4 is supported by cylinder bracket 1, and bottom is provided with steel and runs plate 3.
Built-in fitting is made up of spacing steel ring 14 and jacking drill bit 7, and jacking drill bit 7 supports steel ring 7.2 by jacking drill bit cap 7.1 and jacking drill bit and forms, and spacing steel ring 14 is positioned at below jacking drill bit cap 7.1, is positioned at jacking drill bit and supports outside steel ring 7.2.The upper surface that spacing steel ring 14 contacts with jacking drill bit cap 7.1 is provided with seal groove, and seal groove is built with O RunddichtringO 11.
Seal ring is made up of upper seal ring 15 and lower seal ring 9, and upper seal ring 15 and lower seal ring 9 are respectively by spacing steel plate with strain at mechanism and form, and upper seal ring 15 and lower seal ring 9 are nesting type structure, fit together by straining at bolt 16.
Embodiment 2
A kind of tunnel survey hole jack-up construction method, comprises that built-in fitting is buried underground, the fixed installation of Lifting Equipment support body, seal ring installs and steel-pipe welding jacking process:
Built-in fitting is buried underground: imbed in section of jurisdiction by built-in fitting in advance, and surrounding and section of jurisdiction reinforcement welding firmly, and add reinforcing muscle; Then with fine-stone concrete, space is clogged;
Lifting Equipment support body fixedly mounts: install Lifting Equipment, and Lifting Equipment supports fixing with cylinder bracket; Lifting Equipment is 100-300 ton two-stroke jack, and jack stroke is 3-5m, steel is housed bottom jack and runs plate.
Seal ring is installed: dress seal ring nested type is equipped with on steel pipe, fits together by straining at mechanism's tension;
Steel-pipe welding jacking: adopt seamless steel pipe, coupling electric welding connects, the dead in line of a rear joint steel pipe and last joint steel pipe; During steel-pipe welding, groove is carried out in coupling, steel pipe single-unit length 2-5m.Then by Lifting Equipment jacking built-in fitting, tunnel measured hole jack-up construction is completed.
After jack-up construction, utilize the Grouting Pipe in tunnel to carry out grouting and reinforcing to the soil body dual slurry near jacking hole, make soil solidifying outside tunnel.
The specific implementation process of the present embodiment:
Imbed in section of jurisdiction by built-in fitting in advance, surrounding and section of jurisdiction reinforcement welding firmly, and add reinforcing muscle.Then with space being clogged closely knit with section of jurisdiction with the C50 fine-stone concrete of strength grade.
Jacking steel pipe adopts Φ 273 seamless steel pipe.Lifting Equipment adopts 200 tons of two-stroke jack, and jack stroke is 3.5m.Steel pipe single-unit length 3m.
Coupling adopts electric welding to connect, and for ensureing that steel-pipe welding is firm, coupling must groove.After must ensureing during welding, the axis of a joint steel pipe and last joint steel pipe overlaps.
After steel pipe jacking, utilize the Grouting Pipe in tunnel to carry out grouting and reinforcing to the soil body dual slurry near jacking hole, make soil solidifying outside tunnel.
Guaranteeing that soil solidifying gets a desired effect, time when namely removing hole sealing collar in anhydrous infiltration tunnel, removing hole sealing collar.Then, with steel plate by integral for the Member Welding with pre-buried outside steel pipe, and reserved Grouting Pipe, carry out slip casting by the space of Grouting Pipe to steel pipe and section of jurisdiction.
After last connection survey completes, original ground present situation can be carried out and resume work.The steel pipe on ground is protruded in cutting, and hole adopts the closely knit backfill of cement mortar, recovers original ground meadow; Section of jurisdiction hole adopts rapid setting cement to carry out shutoff, guarantees the normal use of section of jurisdiction.
Claims (10)
1. a tunnel survey hole lift-up device, is characterized in that: lift-up device comprises built-in fitting, seal ring, steel pipe and jack; Built-in fitting inside, pre-buried section of jurisdiction is also sleeved on steel tube end part, and seal ring is sleeved on outside steel pipe, and seal ring connects built-in fitting, is supported below steel pipe by jack.
2. tunnel survey hole according to claim 1 lift-up device, it is characterized in that: built-in fitting is made up of spacing steel ring and jacking drill bit, jacking drill bit supports steel ring by jacking drill bit cap and jacking drill bit and forms, and spacing steel ring is positioned at below jacking drill bit cap, is positioned at jacking drill bit and supports outside steel ring.
3. tunnel survey hole according to claim 2 lift-up device, is characterized in that: the upper surface that spacing steel ring contacts with jacking drill bit cap is provided with seal groove.
4. tunnel survey hole according to claim 3 lift-up device, is characterized in that: spacing steel ring upper surface seal groove is built with O RunddichtringO.
5. the tunnel survey hole lift-up device according to the arbitrary claim of Claims 1-4, it is characterized in that: seal ring is made up of upper seal ring and lower seal ring, upper seal ring and lower seal ring are respectively by spacing steel plate with strain at mechanism and form, upper seal ring and lower seal ring are nesting type structure, fit together by straining at mechanism.
6. the tunnel survey hole lift-up device according to the arbitrary claim of Claims 1-4, is characterized in that: jack is supported by cylinder bracket, and bottom is provided with steel and runs plate.
7. a tunnel survey hole jack-up construction method, is characterized in that: jack-up construction method comprises that built-in fitting is buried underground, the fixed installation of Lifting Equipment support body, seal ring are installed and steel-pipe welding jacking process,
Built-in fitting is buried underground: imbed in section of jurisdiction by built-in fitting in advance, and surrounding and section of jurisdiction reinforcement welding firmly, and add reinforcing muscle; Then with fine-stone concrete, space is clogged;
Lifting Equipment support body fixedly mounts: install Lifting Equipment, and Lifting Equipment supports fixing with cylinder bracket;
Seal ring is installed: dress seal ring nested type is equipped with on steel pipe, fits together by straining at mechanism's tension;
Steel-pipe welding jacking: adopt seamless steel pipe, coupling electric welding connects, the dead in line of a rear joint steel pipe and last joint steel pipe; Then by Lifting Equipment jacking built-in fitting, tunnel measured hole jack-up construction is completed.
8. tunnel survey hole according to claim 7 jack-up construction method, is characterized in that: after jack-up construction, utilizes the Grouting Pipe in tunnel to carry out grouting and reinforcing to the soil body dual slurry near jacking hole, makes soil solidifying outside tunnel.
9. tunnel survey hole according to claim 7 jack-up construction method, is characterized in that: Lifting Equipment is 100-300 ton two-stroke jack, and jack stroke is 3-5m, steel is housed bottom jack and runs plate.
10. tunnel survey hole according to claim 7 jack-up construction method, it is characterized in that: during steel-pipe welding, groove is carried out in coupling, steel pipe single-unit length 2-5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507259.6A CN102979529B (en) | 2012-11-30 | 2012-11-30 | Jacking device of tunnel measuring hole and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507259.6A CN102979529B (en) | 2012-11-30 | 2012-11-30 | Jacking device of tunnel measuring hole and construction method thereof |
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| Publication Number | Publication Date |
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| CN102979529A CN102979529A (en) | 2013-03-20 |
| CN102979529B true CN102979529B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210507259.6A Expired - Fee Related CN102979529B (en) | 2012-11-30 | 2012-11-30 | Jacking device of tunnel measuring hole and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108678775B (en) * | 2018-07-06 | 2024-01-26 | 浙江大学城市学院 | Transverse oval deformation resistant shield tunnel reinforcing structure of embedded steel plate and construction method |
| CN113237644B (en) * | 2021-04-25 | 2022-07-26 | 湖南华鑫美好公路环境建设有限公司 | Device and method for detecting bearing capacity of jet fan supporting structure of road tunnel |
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| DE3633350C1 (en) * | 1986-10-01 | 1988-05-11 | Hochtief Ag Hoch Tiefbauten | Method of supplying compressed air to the working chamber and the personnel and materials lock of a manhole cylinder and device for carrying out the method |
| JP2001220996A (en) * | 2000-02-10 | 2001-08-17 | Ishikawajima Constr Materials Co Ltd | Method for constructing partition wall in tunnel |
| CN201712492U (en) * | 2010-08-31 | 2011-01-19 | 中铁十八局集团第三工程有限公司 | Fixing structure of contact network in tunnel |
| CN102466447A (en) * | 2010-11-18 | 2012-05-23 | 常萍 | Displacement measurement system applied to tunnel construction |
| CN202177380U (en) * | 2011-08-09 | 2012-03-28 | 山东大学 | Tunnel monitoring measurement point and TSP (Tunnel Seismic Predication) blast hole arranging device |
| CN203050718U (en) * | 2012-11-30 | 2013-07-10 | 天津第三市政公路工程有限公司 | Tunnel survey hole jacking device |
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Granted publication date: 20150107 Termination date: 20181130 |