CN108005685A - A kind of anchor spraying concrete wall for grouting construction method - Google Patents
A kind of anchor spraying concrete wall for grouting construction method Download PDFInfo
- Publication number
- CN108005685A CN108005685A CN201711314379.3A CN201711314379A CN108005685A CN 108005685 A CN108005685 A CN 108005685A CN 201711314379 A CN201711314379 A CN 201711314379A CN 108005685 A CN108005685 A CN 108005685A
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- China
- Prior art keywords
- layer
- concrete
- concrete layer
- grouting
- mesh sheet
- Prior art date
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Links
- 239000004567 concrete Substances 0.000 title claims abstract description 97
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000005507 spraying Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims 1
- 210000004233 talus Anatomy 0.000 description 7
- 239000011435 rock Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- 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
- E21D11/04—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 OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention relates to a kind of anchor spraying concrete wall for grouting construction method, step is：S1 is needing first just the first layer concrete of injection of the face for carrying out curtain-grouting paragraph；S2 applies total length binding type anchor pole on the first concrete layer, and anchor pole will add backing plate, and backing plate nut tightening is simultaneously closely connected with the outer surface of the first concrete layer；S3 hangs first layer mesh sheet in the outer surface of the first concrete layer, and the outer end spot welding of first layer mesh sheet and anchor pole connects；Outer jet second layer concretes of the S4 in the first concrete layer；Outer jet third layer concrete of the S5 in the second concrete layer；S6 applies second layer mesh sheet in the outer surface of the 3rd concrete layer；S7 the 3rd concrete layer the 4th layer concrete of outer jet, to wall for grouting require thickness, after intensity is met the requirements, you can carry out Curtain Grouting Construction.This wall for grouting construction method is not required that template, technique are simple, speed of application is fast, and the wall for grouting of formation is reliable effectively, good integrity.
Description
Technical field
The present invention relates to technical field of tunnel construction, more particularly to a kind of anchor spraying concrete wall for grouting structure and its construction party
Method.
Background technology
The scale of great Qian Shi ridges tunnel entrance talus is very big, and talus scope includes the almost whole massif of tunnel entrance,
26 °~38 ° of natural grade, talus thickness are 26.3m~48.4m, and body extends to korneforos near the mountain for Study on Rock lower part.Talus mainly by
Block stone composition not of uniform size, rock matter are early Sinian system fishing platform group (Z1d) quartzy sandstone, and block stone diameter is more in 0.5m~1.5m
Between, big 2~3m of person, block footpath is overall more homogeneous, in loose aerial construction, basic non-binding.Great Qian Shi ridges tunnel is from huge
Talus middle and upper part passes through, and tunnel top talus maximum gauge 50m, tunnel bottom highly reaches more than 32m from talus base rock.In order to
Ensure that project subject structure is safe, steel tube shed+curtain-grouting is the important working measure of one of which in hole.But carry out curtain note
During slurry, concrete wall for grouting is mainly concrete soil structure, and thickness, it is necessary to first shuttering, then is reinforced generally in more than 40cm, most
After-pouring concrete, complicated construction technique, time are long, of high cost, larger to site operation tissue effect.
The content of the invention
The present invention for solve known technology present in technical problem provide one kind be not required template, technique simply, apply
Work speed is fast, reliable effective, the anchor spraying concrete wall for grouting construction method of good integrity of wall for grouting of formation.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of anchor spraying concrete wall for grouting construction method, it is characterised in that including following construction procedure：
S1 is needing the face for carrying out curtain-grouting paragraph first just to spray the first layer concrete, forms the first concrete
Layer；
S2 applies total length binding type anchor pole on the first concrete layer, and anchor pole will add backing plate, backing plate with nut tightening simultaneously
It is closely connected with the outer surface of the first layer concrete.
S3 hangs first layer mesh sheet in the outer surface of the first concrete layer, and the outer end spot welding of first layer mesh sheet and anchor pole connects
Connect, easy to fixation；
S4 is in the second layer concrete of outer jet of the first concrete layer, the second concrete layer of formation；
S5 is in the outer jet third layer concrete of the second concrete layer, the 3rd concrete layer of formation；
S6 applies second layer mesh sheet in the outer surface of the 3rd concrete layer, and second layer mesh sheet is with being fixed on the 3rd concrete layer
On useless steel bar end exposed junction spot welding connection；
S7 the 3rd concrete layer the 4th layer concrete of outer jet, to wall for grouting require thickness, formed the 4th coagulation
Soil layer, after intensity is met the requirements, you can carry out Curtain Grouting Construction.
Further：The thickness of first concrete layer is 60mm, and the thickness of the second concrete layer is 120mm, the 3rd coagulation
The thickness of the layer is 120mm, and the thickness of the 4th concrete layer is 100mm.
Further：Anchor pole is process with φ 20mm screw-thread steels, length 1.5m, plate thickness 10mm, and size is
100mm×100mm。
Further：First layer mesh sheet and second layer mesh sheet are process using No. 8 iron wires, the grid spacing of two mesh sheet
It is 100mm × 100mm.
Further：The concrete grade of injection is C25, and the compacting agent with accelerator equivalent is mixed in concrete.
The present invention has the advantages and positive effects of：
1st, this wall for grouting construction method mainly forms wall for grouting by spraying multi-layer concrete, it is not necessary to template, technique
Simply, speed of application is fast, so as to save investment and labour, shortens the duration.
2nd, concrete spray coating has high-adhesiveness, cementing loose sillar, and filling fracture simultaneously gos deep into rock interior, makes spray-up
With the common bearing load in rock stratum, reach preferable globality.
3rd, the wall for grouting that this construction method is formed have high density or high intensity, it is reliable effectively, disclosure satisfy that grouting pressure>
The construction requirement of 1MPa.
Brief description of the drawings
Fig. 1 is the sectional schematic diagram of wall for grouting of the present invention.
In figure：1st, the first concrete layer；2nd, anchor pole；3rd, backing plate；4th, nut；5th, first layer mesh sheet；6th, the second concrete layer；
7th, the 3rd concrete layer；8th, second layer mesh sheet；9th, the 4th concrete layer；1,, scar.
Embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and with reference to attached drawing
Describe in detail as follows：
Fig. 1 is referred to, a kind of anchor spraying concrete wall for grouting construction method, its innovative point is, including following construction procedure：
S1 is needing the face (scar 1) for carrying out curtain-grouting paragraph first just to spray the first layer concrete, forms first
Concrete layer 1.
S2 applies total length binding type anchor pole 2 on the first concrete layer, and anchor pole will add backing plate 3, and backing plate nut 4 tightens
And it is closely connected with the outer surface of the first concrete layer, the purpose for setting anchor pole mainly ensures that whole wall for grouting is fixed on by anchor pole
On scar, prevent grouting pressure from crossing the extruding of senior general's slip casting wall and collapsing.
S3 hangs first layer mesh sheet 5 in the outer surface of the first concrete layer, and the outer end spot welding of first layer mesh sheet and anchor pole connects
Connect, easy to fixation, the purpose of setting first layer mesh sheet：Strengthen the globality and compression strength of whole wall for grouting.
S4 is in the second layer concrete of outer jet of the first concrete layer, the second concrete layer 6 of formation；
S5 is in the outer jet third layer concrete of the second concrete layer, the 3rd concrete layer 7 of formation；
S6 applies second layer mesh sheet 8 in the outer surface of the second concrete layer, and second layer mesh sheet is with being fixed on the 3rd concrete
The exposed junction spot welding connection of useless steel bar end on layer.Mixed specifically, being ordered with the drilling of about 10cm long φ 20mm screw-thread steels into third layer
On solidifying soil, expose about 2cm, second layer mesh sheet is connected with steel bar end exposed junction spot welding.The purpose of second layer mesh sheet is set：Equally it is
To strengthen the globality and compression strength of whole wall for grouting.
S7 the 3rd concrete layer the 4th layer concrete of outer jet, to wall for grouting require thickness, formed the 3rd coagulation
Soil layer 9, after intensity is met the requirements, you can carry out Curtain Grouting Construction.
In above-mentioned wall for grouting construction method：The thickness of each concrete layer is further preferably as follows：
The thickness of first concrete layer is 60mm, and the thickness of the second concrete layer is 120mm, the thickness of the 3rd concrete layer
For 120mm, the thickness of the 4th concrete layer is 100mm.
In above-mentioned wall for grouting construction method：The size of anchor pole and cushion block is preferably as follows：
Anchor pole is process with φ 20mm screw-thread steels, length 1.5m；Plate thickness 10mm, size for 100mm ×
100mm。
In above-mentioned wall for grouting construction method：The iron wire diameter dimension and grid spacing of two layers mesh sheet are as follows：
First layer mesh sheet and second layer mesh sheet are process using No. 8 iron wires, and the grid spacing of two mesh sheet is 100mm
×100mm。
In above-mentioned wall for grouting construction method：The concrete of injection preferably uses the concrete marked as C25, is mixed in concrete
Enter that (compacting agent often there are siliceous compacting agents of JH etc. with model, and accelerator often has Red Star I with model with the compacting agent of accelerator equivalent
Type, 7 II types, 782 types, 8604 types etc.), to ensure that slip casting rear slurry does not ooze out.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, can also be on the premise of present inventive concept not be departed from the knowledge that one skilled in the relevant art possesses
Various changes can be made, belongs to protection scope of the present invention.
Claims (5)
1. a kind of anchor spraying concrete wall for grouting construction method, it is characterised in that including following construction procedure：
S1 is needing the face for carrying out curtain-grouting paragraph first just to spray the first layer concrete, forms the first concrete layer；
S2 applies total length binding type anchor pole on the first concrete layer, and anchor pole will add backing plate, backing plate nut tightening and with
The outer surface of one concrete layer is closely connected.
S3 hangs first layer mesh sheet in the outer surface of the first concrete layer, and the outer end spot welding of first layer mesh sheet and anchor pole connects, just
In fixation；
S4 is in the second layer concrete of outer jet of the first concrete layer, the second concrete layer of formation；
S5 is in the outer jet third layer concrete of the second concrete layer, the 3rd concrete layer of formation；
S6 applies second layer mesh sheet in the outer surface of the 3rd concrete layer, and second layer mesh sheet is with being fixed on the 3rd concrete layer
The exposed junction spot welding connection of useless steel bar end；
S7 the 3rd concrete layer the 4th layer concrete of outer jet, to wall for grouting require thickness, formed the 4th concrete layer,
After intensity is met the requirements, you can carry out Curtain Grouting Construction.
2. anchor spraying concrete wall for grouting construction method according to claim 1, it is characterised in that：The thickness of first concrete layer
Spend for 60mm, the thickness of the second concrete layer is 120mm, and the thickness of the 3rd concrete layer is 120mm, the thickness of the 4th concrete layer
Spend for 100mm.
3. anchor spraying concrete wall for grouting construction method according to claim 2, it is characterised in that：Anchor pole φ 20mm screw threads
Steel is process, length 1.5m；Plate thickness 10mm, size are 100mm × 100mm.
4. anchor spraying concrete wall for grouting construction method according to claim 1, it is characterised in that：First layer mesh sheet and second
Floor mesh sheet is process using No. 8 iron wires, and the grid spacing of two mesh sheet is 100mm × 100mm.
5. anchor spraying concrete wall for grouting construction method according to claim 1, it is characterised in that：The concrete grade of injection
For C25, incorporation and the compacting agent of accelerator equivalent in concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711314379.3A CN108005685B (en) | 2017-12-12 | 2017-12-12 | A kind of anchor spraying concrete wall for grouting construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711314379.3A CN108005685B (en) | 2017-12-12 | 2017-12-12 | A kind of anchor spraying concrete wall for grouting construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005685A true CN108005685A (en) | 2018-05-08 |
| CN108005685B CN108005685B (en) | 2019-05-31 |
Family
ID=62058127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711314379.3A Active CN108005685B (en) | 2017-12-12 | 2017-12-12 | A kind of anchor spraying concrete wall for grouting construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005685B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825301A (en) * | 2018-06-05 | 2018-11-16 | 太原理工大学 | A kind of quick walling method of heap pneumatically placed concrete for underground coal mine |
| CN109372555A (en) * | 2018-12-26 | 2019-02-22 | 中国矿业大学 | A kind of fault disruption zone area tunnel 3 D stereo grouting support method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988077A (en) * | 1995-07-13 | 1997-03-31 | Sango:Kk | Repair method of falling rock preventive concrete wall of slope |
| CN204212163U (en) * | 2014-10-22 | 2015-03-18 | 贵州正业工程技术投资有限公司 | Karst depression talus off-load reinforced structure |
| CN204371365U (en) * | 2014-12-22 | 2015-06-03 | 中铁十九局集团轨道交通工程有限公司 | Deep hole sealing filling system |
| CN206205915U (en) * | 2016-11-10 | 2017-05-31 | 河南理工大学 | A kind of flexible entirety concrete spray-up structure of deep tunnel bolt-spary supports |
| CN206636570U (en) * | 2017-04-13 | 2017-11-14 | 中国电建集团成都勘测设计研究院有限公司 | A kind of tunnel abutment wall collapses the supporting construction at place |
-
2017
- 2017-12-12 CN CN201711314379.3A patent/CN108005685B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988077A (en) * | 1995-07-13 | 1997-03-31 | Sango:Kk | Repair method of falling rock preventive concrete wall of slope |
| CN204212163U (en) * | 2014-10-22 | 2015-03-18 | 贵州正业工程技术投资有限公司 | Karst depression talus off-load reinforced structure |
| CN204371365U (en) * | 2014-12-22 | 2015-06-03 | 中铁十九局集团轨道交通工程有限公司 | Deep hole sealing filling system |
| CN206205915U (en) * | 2016-11-10 | 2017-05-31 | 河南理工大学 | A kind of flexible entirety concrete spray-up structure of deep tunnel bolt-spary supports |
| CN206636570U (en) * | 2017-04-13 | 2017-11-14 | 中国电建集团成都勘测设计研究院有限公司 | A kind of tunnel abutment wall collapses the supporting construction at place |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825301A (en) * | 2018-06-05 | 2018-11-16 | 太原理工大学 | A kind of quick walling method of heap pneumatically placed concrete for underground coal mine |
| CN108825301B (en) * | 2018-06-05 | 2020-07-03 | 太原理工大学 | Quick wall building method for underground coal mine through pile-spraying concrete |
| CN109372555A (en) * | 2018-12-26 | 2019-02-22 | 中国矿业大学 | A kind of fault disruption zone area tunnel 3 D stereo grouting support method |
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| Publication number | Publication date |
|---|---|
| CN108005685B (en) | 2019-05-31 |
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