CN108222989A - A kind of constructing tunnel anchor pole securing device and its installation method - Google Patents
A kind of constructing tunnel anchor pole securing device and its installation method Download PDFInfo
- Publication number
- CN108222989A CN108222989A CN201810107967.8A CN201810107967A CN108222989A CN 108222989 A CN108222989 A CN 108222989A CN 201810107967 A CN201810107967 A CN 201810107967A CN 108222989 A CN108222989 A CN 108222989A
- Authority
- CN
- China
- Prior art keywords
- plate
- anchor pole
- component
- firm
- firm component
- 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
- 238000009434 installation Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 8
- 239000011435 rock Substances 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000739 chaotic effect Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of constructing tunnel anchor pole securing device, including：Firm component one and firm component two.Firm component one and firm component two include：Horizontal splice plate, vertical plate and bottom connecting plate, tail portion and the vertical plate top of horizontal splice plate are vertically connected, and head and the vertical plate bottom end of bottom connecting plate are vertically connected, and the extending direction of horizontal splice plate is opposite with the extending direction of bottom connecting plate.Anchor pole location hole is set on horizontal splice plate；Bolt hole is set on bottom connecting plate.The present invention needs the circumferentially prepared screw-bolt hole at a certain distance on the steelframe edge of a wing before implementing, can improve the phenomenon that system anchor bolt layout is chaotic under the prior art, the globality of lifting system suspension roof support in tunnel longer-range by the position for arranging bolt hole.
Description
Technical field
The present invention relates to engineering support apparatus fields, and in particular to a kind of constructing tunnel anchor pole securing device and its installation
Method.
Background technology
In recent years, with China's double track railway, Railway Tunnel and two tracks, three lanes, four lane road tunnel
It builds, large cross-section tunnel and Complicated Geologic Condition are also more and more.In soft stratum（IV, V, VI grades of country rocks）Under the conditions of, tunnel
Initial stage is mainly formed using some supports combined measures such as steelframe, gunite concrete, bar-mat reinforcement, system anchor bolts.And wherein by spraying
Concrete is penetrated just to be applied widely early in 20 70 ~ eighties of century with the combined bolting and shotcrete that anchor pole forms, it can be seen that, anchor pole
Supporting is always in occupation of critical role in Tunnel system.
In tunnel support parameter designing, often in the system anchor bolt radially squeezed into of tunnel cross-section design certain amount, use
To reinforce country rock.However in practice of construction, the setting of radial system anchor pole often more arbitrarily, is mainly reflected in：It squeezes into
Angle is random, even deviates from radially larger angle sometimes；It is random to squeeze into position, it is difficult to accurately be arranged among two Pin steelframes.Cause
This, since scene lacks for the effective normalized construction device of system anchor bolt and means at present, leads to the construction of system anchor bolt
It is difficult to meet design requirement, while its support action played is also caused to be had a greatly reduced quality.
Invention content
The purpose of the present invention is to solve the problem of radial direction system anchor bolt construction effect is bad in current constructing tunnel, carry
Integrated device can be simultaneously formed with steelframe for improving tunnel system suspension roof support performance for a kind of, can not only make system anchor bolt
Support action be not fully exerted, can also with steelframe formed integer support system, so as to improve initial stage branch in weak surrounding rock
The bearing capacity of shield.
The invention is realized by the following technical scheme：
A kind of constructing tunnel anchor pole securing device, including：Firm component one and firm component two；The firm component one and steady
Gu component two includes：Horizontal splice plate, vertical plate and bottom connecting plate, tail portion and the vertical plate top of the horizontal splice plate
Be vertically connected, head and the vertical plate bottom end of the bottom connecting plate are vertically connected, the extending direction of the horizontal splice plate with
The extending direction of bottom connecting plate is opposite；Anchor pole location hole is set on the horizontal splice plate；It is set on the bottom connecting plate
Bolt hole；The bottom surface of the horizontal splice plate of firm component one is recessed into slab section and thin plate section upwards, consolidates the level of component two
The top surface of splice plate recessed down is in slab section and thin plate section；The slab section is connect with vertical plate, and anchor pole is set in thin plate section
Location hole.
Further, the slab section of the horizontal splice plate of the firm component one and the horizontal splice plate of firm component two
The thickness of slab section is identical；The recess of the horizontal splice plate of the firm component one and the horizontal splice plate of firm component two
Recess matches, and consolidates the sum of the thickness of one thin plate section of component and the thickness of firm two thin plate section of component and is equal to firm component one
Horizontal splice plate slab section thickness.The splice plate of i.e. firm component one can engage with the splice plate of firm component two.
Further, the anchor pole location hole of the firm component one and firm component two is arranged at its thin plate segment length
At half.
Further, the horizontal splice plate, vertical plate and bottom connecting plate three are fixedly connected by welding.
Further, the thickness of two thin plate section of the firm component one and firm component is the one of its slab section thickness
Half.
In addition the present invention also provides a kind of constructing tunnel anchor pole securing device and its installation method of installation method, including
Following steps：
The first step, tunnel excavation face and the substantially smooth rear positioning for carrying out steelframe of tunnel contour, installation, the steelframe is I-shaped
Steelframe；
Second step sets longitudinally connected muscle and bar-mat reinforcement on tunnel surrounding, sets the bolt in advance on the edge of a wing of steelframe
Hole；
Third walks, and the horizontal splice plate of firm component one and firm component two is withstood under country rock, and anchor pole thereon is positioned
Hole centering squeezes into position to scheduled anchor pole, and firm component one and two mirror of firm component are to being arranged in steelframe both sides；
By the bolt hole centering on the bolt hole and steelframe on bottom connecting plate, fixation is bolted in 4th step；
5th step squeezes into anchor pole towards in anchor pole location hole, and installs stop grouting plug and roof bolt plate, blending bolt on anchor pole successively
Fastening.
The beneficial effects of the present invention are：
（1）The present invention provides a kind of tunnel radial system anchor pole scene specification from the angle of system anchor bolt location and installation
Change the method for construction, be conducive to give full play to the support action of system anchor bolt.
（2）Bottom connecting plate is bolted on the edge of a wing of front and rear steelframe in the present invention, make system anchor bolt with it is front and rear
Steelframe forms integer support system, is conducive to reduce the sedimentation of steel arch-shelf.
（3）The present invention needs the circumferentially prepared screw-bolt hole at a certain distance on the steelframe edge of a wing before implementing, by arranging bolt
The position in hole can improve the phenomenon that system anchor bolt layout is chaotic under the prior art, the lifting system anchor pole branch in tunnel longer-range
The globality of shield.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is mounting structure schematic diagram of the present invention.
In figure：1st, component one is consolidated；2nd, component two is consolidated；3rd, horizontal splice plate；4th, vertical plate；5th, bottom connecting plate；6、
Anchor pole location hole；7th, bolt hole；8th, slab section；9th, thin plate section；10th, steelframe；11st, country rock；12nd, anchor pole；13rd, stop grouting plug；14th, anchor
Bar backing plate.
Specific embodiment
In order to clearly illustrate the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and it is embodied
The example technical solution that the present invention will be described in detail provides.Other than each embodiment described in this part, the present invention also is able to
Implemented by other different modes, those skilled in the art can be correspondingly improved, deform and replace, therefore the present invention
It is not limited by specific embodiment disclosed in the part.
A kind of constructing tunnel anchor pole securing device as shown in Figure 1, including：Firm component 1 and firm component 22.Surely
Gu component 1 and firm component 22 include：Horizontal splice plate 3, vertical plate 4 and bottom connecting plate 5, the tail of horizontal splice plate 3
Portion is fixed with 4 top vertical welding of vertical plate, and head and 4 bottom end of vertical plate of bottom connecting plate 5 are vertically connected, horizontal splice plate
3 extending direction is opposite with the extending direction of bottom connecting plate 5.
Horizontal splice plate 3 is process by a block length 58cm, the steel plate of thick 2cm, sets 12 location hole 6 of anchor pole thereon；Bottom
Portion's connecting plate 5 is a block length 50cm, and the steel plate of thick 1cm sets bolt hole 7 thereon.The horizontal splice plate 3 of firm component 1
Bottom surface is recessed 1cm upwards, is divided into slab section 8 and thin plate section 9, and the top surface for consolidating the horizontal splice plate 3 of component 22 is recessed down
1cm is divided into slab section 8 and thin plate section 9.Slab section 8 is connect with vertical plate 4, and anchor pole location hole 6 is set in thin plate section 9；Firm structure
The recess of the horizontal splice plate 3 of part 1 and the recess of the horizontal splice plate 3 of firm component 22 match, i.e., firm component
The thin plate section 9 of one 1 horizontal splice plate 3 and the horizontal splice plate 3 of firm component 22 can be mutually clamped.
The anchor pole location hole 6 of firm component 1 and firm component 22 is arranged at the half of its 9 length of thin plate section
Place, 6 diameter of anchor pole location hole are more than bolt diameter.
As shown in Fig. 2, after the completion of firm component 1 and firm component 22 are prefabricated, installed, installed at country rock 11
Specifically include following steps：
The first step, tunnel excavation face and the substantially smooth rear positioning for carrying out steelframe 10 of tunnel contour, installation, the steelframe 10 is work
Font steelframe 10；
Second step sets longitudinally connected muscle and bar-mat reinforcement on tunnel surrounding 11, on the edge of a wing of steelframe 10 described in setting in advance
Bolt hole 7；
Third walks, and the horizontal splice plate 3 of firm component 1 and firm component 22 is withstood under country rock 11, and by anchor pole thereon
6 centering of location hole squeezes into position to scheduled anchor pole 12, consolidates component 1 and 22 mirror-image arrangement of firm component in 10 liang of steelframe
Side；
By 7 centering of bolt hole on the bolt hole 7 on bottom connecting plate 5 and steelframe 10, fixation is bolted in 4th step；
5th step squeezes into anchor pole 12 towards in anchor pole location hole 6, specifically sets means depending on practical 11 situation of country rock：If country rock
11 conditions are poor（V, VI grades of country rocks 11）, such as loosely and without self-stability, anchor pole 12 then directly can be pierced country rock 11 by difficult pore-forming；
Such as 11 conditions permit of country rock, also can first pore-forming anchor pole 12 is installed again.Stop grouting plug 13 and anchor pole are finally installed on anchor pole 12 successively
Backing plate 14, blending bolt fastening.
Claims (6)
1. a kind of constructing tunnel anchor pole securing device, which is characterized in that including：Firm component one and firm component two；It is described
Firm component one and firm component two include：Horizontal splice plate, vertical plate and bottom connecting plate, the tail of the horizontal splice plate
Portion is vertically connected with vertical plate top, and head and the vertical plate bottom end of the bottom connecting plate are vertically connected, the horizontal splicing
The extending direction of plate is opposite with the extending direction of bottom connecting plate；Anchor pole location hole is set on the horizontal splice plate；The bottom
The bottom surface of horizontal splice plate for bolt hole being set to consolidate component one on portion's connecting plate is recessed into slab section and thin plate section upwards, consolidates
The top surface of the horizontal splice plate of component two is recessed down into slab section and thin plate section；The slab section is connect with vertical plate, thin plate
Anchor pole location hole is set in section.
2. a kind of constructing tunnel anchor pole securing device as described in claim 1, which is characterized in that the firm component one
The slab section of horizontal splice plate is identical with the thickness of the slab section of the horizontal splice plate of firm component two；The firm component one
The recess of horizontal splice plate and the recess of the horizontal splice plate of firm component two match, and consolidate the thickness of one thin plate section of component
The sum of degree and the thickness of firm two thin plate section of component are equal to the slab section thickness of the horizontal splice plate of firm component one.
A kind of 3. constructing tunnel anchor pole securing device as described in claim 1, which is characterized in that firm one He of component
The anchor pole location hole of firm component two is arranged at the half of its thin plate segment length.
4. a kind of constructing tunnel anchor pole securing device as described in claim 1, which is characterized in that the horizontal splice plate,
Vertical plate and bottom connecting plate three are fixedly connected by welding.
A kind of 5. constructing tunnel anchor pole securing device as described in claim 1, which is characterized in that firm one He of component
The thickness of two thin plate section of firm component is the half of its slab section thickness.
6. the installation method of a kind of constructing tunnel anchor pole securing device as described in claim 1, which is characterized in that including such as
Lower step：
The first step, tunnel excavation face and the substantially smooth rear positioning for carrying out steelframe of tunnel contour, installation, the steelframe is I-shaped
Steelframe；
Second step sets longitudinally connected muscle and bar-mat reinforcement on tunnel surrounding, and bolt hole is set in advance on the edge of a wing of steelframe；
Third walks, and the horizontal splice plate of firm component one and firm component two is withstood under country rock, and anchor pole thereon is positioned
Hole centering squeezes into position to scheduled anchor pole, and firm component one and two mirror of firm component are to being arranged in steelframe both sides；
By the bolt hole centering on the bolt hole and steelframe on bottom connecting plate, fixation is bolted in 4th step；
5th step squeezes into anchor pole towards in anchor pole location hole, and installs stop grouting plug and roof bolt plate, blending bolt on anchor pole successively
Fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107967.8A CN108222989B (en) | 2018-02-02 | 2018-02-02 | Anchor rod stabilizing device for tunnel construction and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107967.8A CN108222989B (en) | 2018-02-02 | 2018-02-02 | Anchor rod stabilizing device for tunnel construction and mounting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222989A true CN108222989A (en) | 2018-06-29 |
| CN108222989B CN108222989B (en) | 2024-03-22 |
Family
ID=62669374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810107967.8A Active CN108222989B (en) | 2018-02-02 | 2018-02-02 | Anchor rod stabilizing device for tunnel construction and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222989B (en) |
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