CN108979676A - A kind of small interval overlapping tunnel folder rock ruggedized construction and its construction method - Google Patents
A kind of small interval overlapping tunnel folder rock ruggedized construction and its construction method Download PDFInfo
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- CN108979676A CN108979676A CN201811069449.8A CN201811069449A CN108979676A CN 108979676 A CN108979676 A CN 108979676A CN 201811069449 A CN201811069449 A CN 201811069449A CN 108979676 A CN108979676 A CN 108979676A
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- 239000011435 rock Substances 0.000 title claims abstract description 61
- 238000010276 construction Methods 0.000 title claims abstract description 54
- 238000009412 basement excavation Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 239000004567 concrete Substances 0.000 claims description 29
- 238000009826 distribution Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D20/00—Setting anchoring-bolts
Abstract
The present invention provides a kind of small interval overlapping tunnel folder rock ruggedized construction and its construction method, and wherein ruggedized construction includes the Counter-pulled bolts that the crown pipe canopy, the inverted arch pipe canopy and abutment wall pipe canopy and drawknot that upper layer tunnel bottom is arranged in of lower layer's tunnel top is arranged between upper layer tunnel and lower layer tunnel；For Counter-pulled bolts arranged for interval in the lap position of upper layer tunnel bottom and lower layer's tunnel top, both ends are connected to upper layer, in lower layer tunnel, in the folder rock that main body is threaded through between upper layer, lower layer tunnel；It in construction, first applies pipe canopy and carries out tunnel excavation again, wherein first carrying out the excavation in lower layer tunnel, set Counter-pulled bolts, sequence of excavation is to press from both sides at rock certainly from the near to the remote；After the completion of lower layer tunnel, to upper layer tunnel excavation, sequentially to press from both sides at rock from far near, and fixed Counter-pulled bolts.Ruggedized construction of the present invention forms the effect of clamping and reinforcing to small interval overlapping tunnel folder rock, has effectively shared upper load, and construction method is simple, easily operated.
Description
Technical field
The present invention relates to constructing tunnel field, in particular to a kind of small interval overlapping tunnel folder rock ruggedized construction and its construction
Method.
Background technique
With the fast development of infrastructure construction in china, engineering space constantly extends, and Tunnel Engineering also gradually increases, and
In small interval, more caverns, big cross section trend, to Tunnel Design construction bring new challenge.It is built in small interval overlapping tunnel
If in, it is to influence that since upper and lower constructing tunnel disturbs repeatedly, folder petrosa position is often the weakest between tunnel, and stress is the most complicated
The key link of overlapping tunnel overall stability, therefore often certain technological means need to be taken to carry out at reinforcing it in work progress
Reason.Currently, being front pre-grouting to the overlapping tunnel folder most common reinforcing means of rock, but front pre-grouting is suitable for weak broken
Rock stratum, and for relatively compact stratum, slip casting relative difficulty, consolidation effect is extremely limited, it is, therefore, desirable to provide a kind of be applicable in
In the ruggedized construction and its construction method of small interval overlapping tunnel folder rock.
Summary of the invention
The present invention propose a kind of small interval overlapping tunnel folder rock ruggedized construction and its construction method to solve the above problems,
Specific technical solution are as follows:
A kind of small interval overlapping tunnel folder rock ruggedized construction, including the crown pipe canopy of lower layer's tunnel top is arranged in, is arranged upper
Counter-pulled bolts of the inverted arch pipe canopy and abutment wall pipe canopy and drawknot of layer tunnel bottom between upper layer tunnel and lower layer tunnel；It is described
For Counter-pulled bolts arranged for interval in the lap position of upper layer tunnel bottom and lower layer's tunnel top, both ends are connected to upper layer tunnel
In road and lower layer tunnel, main body is threaded through in the folder rock between upper layer tunnel and lower layer tunnel.
The crown pipe canopy and inverted arch pipe canopy include the pipe fitting of one group of parallel interval distribution；The abutment wall pipe canopy is symmetrically set
It is placed in the two sides inverted arch Guan Peng and is installed along tunnel side wall, every side wall coil canopy includes the pipe fitting of one group of parallel interval distribution.
The pipe fitting of the crown pipe canopy, inverted arch pipe canopy and abutment wall pipe canopy is longitudinally therethrough the tunnel not excavated each along tunnel
Interior, the pipe fitting is slip casting pipe fitting.
The Counter-pulled bolts are arranged drawing along upper layer tunnel and lower layer's tunnel cross section lap outer profile, along upper layer tunnel
Road and lower layer tunnel are longitudinally in the distribution of plum blossom-shaped parallel interval.
Upper layer tunnel bottom excavation contour line or more is protruded into the upper end of the Counter-pulled bolts, and the end of Counter-pulled bolts is cast in
In shotcrete layer, at least two layers of the concrete layer.
The concrete layer is to be close to be equipped with reinforced mesh, the reinforcing bar between folder rock bottom concrete and upper layer concrete
Mesh sheet is equipped with W steel band of model.
The upper end of the Counter-pulled bolts sequentially passes through reinforced mesh, W steel band of model, backing plate, Counter-pulled bolts end from the bottom to top
Bending is connect with backing plate, to be fixed in W steel band of model, and be further cast in concrete.
The lower end of the Counter-pulled bolts passes through concrete layer and reinforced mesh and W steel band of model, and by roof bolt plate and
Fixing bolt anchoring.
The W fashioned iron is arranged with one group and along tunnel longitudinal direction parallel interval, and every W steel band of model is correspondingly connected with one
Counter-pulled bolts in cross section.
A kind of construction method of small interval overlapping tunnel folder rock ruggedized construction, specific implementation step are as follows:
Step 1: before upper layer tunnel and lower layer's tunnel excavation, first in lower layer's umbrella arch position, upper layer tunnel inverted arch and abutment wall
Position applies pipe shed support；
Step 2: after the completion of pipe canopy applies, lower layer tunnel of first constructing, for lower layer's tunnel partial excavation, first excavation lower layer's tunnel
The corresponding tunnel segment in the road position Zhong Jiayan exposes folder rock sufficiently；
Step 3: successively carrying out first layer construction of shotcrete and armature boring after pressing from both sides rock exposure, successively being installed after borehole cleaning
Reinforced mesh, W steel band of model, Counter-pulled bolts, and bored grouting is carried out, termination point of anchor rod is fixed in W steel band of model by roof bolt plate,
The second layer concrete is sprayed again, to complete the Counter-pulled bolts construction in lower layer tunnel；
Step 4: continuing to excavate lower layer tunnel remainder and carrying out preliminary bracing, after secondly switching to top after the completion of lining construction
Constructing tunnel, wherein rock-bolt length gos deep into upper layer tunnel excavation contour line to be onstructed or more；
Step 5: upper layer tunnel is constructed using branch, from far from folder rock at nearly folder rock successively propelling construction until finally leaning on
Nearly one, rock, folder；
Step 6: when excavating near anchor pole end, switch to hand excavation, after excavation, spray the first layer concrete first,
Then it is laid with reinforced mesh in first layer concrete surface, W steel band of model and backing plate is installed, cut off anchor pole excessive portion, bend anchor
Rod end head, and be connected with backing plate, the second layer concrete is sprayed again, to complete the strengthening construction of folder rock.
The invention has the following advantages:
The present invention is formed with the bimetallic tube canopy by lower layer tunnel and upper layer tunnel with inclination Counter-pulled bolts to small interval folder rock
The clamping action of effect improves and presss from both sides the bearing capacity of rock and the overall stability of overlapping tunnel in work progress, and is consequently formed
" rock beam " carrying system play certain supporting role, can effectively share top country rock, structure and operation load；Counter-pulled bolts
End using the measures such as W steel band of model and backing plate, may make Counter-pulled bolts and small interval to press from both sides the interaction between rock and reinforce, improve
Folder rock integral reinforcing effect and bearing capacity；It present invention can be suitably applied to the more close and loose type of folder rock rock mass, using model
Enclose relatively wide, sectional branch constructs when construction, and construction technology is simple, effectively saves working hour, improves construction efficiency.
Detailed description of the invention
Fig. 1 is small interval overlapping tunnel folder rock ruggedized construction schematic diagram；
Fig. 2 is Counter-pulled bolts schematic diagram.
Appended drawing reference: 1- lower layer tunnel；The upper layer 2- tunnel；3- presss from both sides rock；4- crown pipe canopy；5- inverted arch pipe canopy；6- abutment wall pipe
Canopy；7- Counter-pulled bolts；8-W steel band of model；9- reinforced mesh；The first layer concrete of 10-；The second layer concrete of 11-；12- screw-thread steel
Pipe；13- snorkel；14- air inlet；15- grouting port；16- grout outlet；17- hollow bolt；18- roof bolt plate；19- backing plate；
The gas outlet 20-.
Specific embodiment
As shown in Figure 1, overlapping tunnel is in the distribution of falling isosceles triangle in the present embodiment, it is a lower layer tunnel 1, two upper layer tunnels
Road 2 has small interval at two to press from both sides rock 3 respectively between lower layer tunnel 1 and upper layer tunnel 2, crown pipe canopy is arranged at the top of lower layer tunnel 1
4, inverted arch pipe canopy 5 and abutment wall pipe canopy 6 and drawknot are set between upper layer tunnel 2 and lower layer tunnel 1 in 2 bottom of upper layer tunnel
Counter-pulled bolts 7；Lap position of 7 arranged for interval of Counter-pulled bolts at the top of 2 bottom of upper layer tunnel and lower layer tunnel 1, two
In the folder rock 3 that end is connected in upper layer tunnel 2 and lower layer tunnel 1, main body is threaded through between upper layer tunnel 2 and lower layer tunnel 1.
As shown in Fig. 2, use Counter-pulled bolts 7 for hollow grouting anchor in the present embodiment, comprising threaded steel pipe 12 and hollow
Anchor pole 17,12 one end of threaded steel pipe are located at upper layer tunnel, and one end is connected with 17 one end of hollow bolt, and connecting place is located in folder rock,
And having grout outlet 16 in junction, 17 other end of hollow bolt is located at lower layer tunnel 1；Snorkel is provided in Counter-pulled bolts 7
13, the air inlet 14 of snorkel 13 is located on the outside of 12 end of threaded steel pipe, and snorkel 13 passes through threaded steel pipe 12 and hollow bolt
Gas outlet 20 is arranged in its end port through 17 body of rod of hollow bolt in 17 junctions.
7 both ends of Counter-pulled bolts are injected with two layer concretes in the present embodiment, are provided with reinforced mesh between two layer concretes
9, the bending of 12 end of threaded steel pipe, bending end sprays in the second layer concrete 11, and backing plate 19 is welded with below bending end,
Backing plate 19 is placed in W steel band of model 8；17 lower end of hollow bolt is bolted, and is connected with roof bolt plate 18 in turn above bolt
With W steel band of model 8；Grouting port 15 is arranged in 17 lower end of hollow bolt, and mortar passes through hollow bolt 17, injects and bores in grout outlet 16
In hole.
Specific implementation steps are as follows:
Step 1, overlapping tunnel apply at 1 crown position of lower layer tunnel with 2 inverted arch of upper layer tunnel and abutment wall position first before excavating
Pipe shed support.In this example, long 45 m of pipe canopy, using the φ mm round steel pipe of 127 mm × 6,40 cm of spacing, 1 crown pipe of lower layer tunnel
The angle that 4 endpoint of canopy is formed is 130 °, and the equal stringing canopy in 2 inverted arch position of upper layer tunnel simultaneously extends to 2.5 m of abutment wall.By upper and lower
Tunneltron canopy forms clamping to folder rock 3.
Step 2: overlapping tunnel is according to the sequence of construction of " getting on, get off ", first construction lower layer's tunnel after the completion of pipe canopy applies
Road 1 is constructed in this example using two side-wall pilot tunnel using Microseismic controlled blasting or mechanical means partial excavation, rock 3 to be pressed from both sides
After exposure (excavate 1. or 2. behind part), the construction of the first layer concrete 10 and armature boring are successively carried out, is successively installed after borehole cleaning
Reinforced mesh 9, W steel band of model 8, hollow grouting anchor, and bored grouting is carried out, termination point of anchor rod passes through 18 anchor of bolt and roof bolt plate
Gu the second layer concrete 11 is sprayed again after the completion of slip casting in W steel band of model 8, so that the Counter-pulled bolts 7 for completing lower layer tunnel 1 are constructed.
Step 3: in construction, 7 length of Counter-pulled bolts should be enough to go deep into upper layer 50 cm of tunnel excavation contour line to be onstructed with
On, to guarantee to meet counter brace part.In this example, Counter-pulled bolts 7 use 22 Combined hollow grouted anchor bar of φ, circumferential and longitudinal cloth
Setting spacing is respectively 0.8 m and 0.5 m, and circumferentially disposed length is 3 m.
Step 4: continuing to excavate 1 remainder of lower layer tunnel (3.~6. portion) and applying preliminary bracing in time, serves as a contrast and apply to two
Switch to the construction of upper layer tunnel 2 after the completion of work.
Step 5: upper layer tunnel 2 carries out branch's construction using Microseismic controlled blasting or mechanical means, this example uses CD method,
8. → 9. from far from folder rock 3 to successively promoting (7. → → 10.) at nearly folder rock 3, construction to it is last close to 3 one, rock of folder (10.
Portion) when, hand excavation should be switched to, the integrality of its internal anchor pole is squeezed into protection, and after the folder exposure of rock 3, injection first layer first is mixed
Solidifying soil 10 is simultaneously laid with reinforced mesh 9, and W steel band of model 8 and backing plate 19 are successively installed on Counter-pulled bolts 7, it is too long to cut off Counter-pulled bolts 7
Part bends 7 end of Counter-pulled bolts, and is weldingly connected with backing plate 19, sprays the second layer concrete 11 again, thus completes overlapping tunnel
Press from both sides the construction of rock ruggedized construction.
Obviously, above-described embodiment is only intended to clearly illustrate made by outstanding feature of the invention and illustrates, and is not pair
The restriction of embodiment of the present invention；It, still can be on the basis of above explained use for those skilled in the art
It makes other variations or changes in different ways, if not carrying out inventive improvements to it, all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of small interval overlapping tunnel presss from both sides rock ruggedized construction, it is characterised in that: including the top being arranged at the top of lower layer tunnel (1)
Inverted arch pipe canopy (5) and abutment wall pipe canopy (6) and drawknot in upper layer tunnel (2) bottom is arranged in upper layer tunnel in arch tube canopy (4)
(2) Counter-pulled bolts (7) between lower layer tunnel (1)；
Lap position of Counter-pulled bolts (7) arranged for interval at the top of upper layer tunnel (2) bottom and lower layer tunnel (1), two
End is connected in upper layer tunnel (2) and lower layer tunnel (1), main body is threaded through between upper layer tunnel (2) and lower layer tunnel (1)
It presss from both sides in rock (3).
2. a kind of small interval overlapping tunnel according to claim 1 presss from both sides rock ruggedized construction, it is characterised in that: the crown pipe
The pipe fitting of canopy (4) and inverted arch pipe canopy (5) comprising the distribution of one group of parallel interval；The abutment wall pipe canopy (6) is symmetrically disposed on inverted arch
It pipe canopy (5) two sides and is installed along tunnel side wall, every side wall coil canopy (6) includes the pipe fitting of one group of parallel interval distribution.
3. a kind of small interval overlapping tunnel according to claim 2 presss from both sides rock ruggedized construction, it is characterised in that: the crown pipe
The pipe fitting of canopy (4), inverted arch pipe canopy (5) and abutment wall pipe canopy (6) is longitudinally therethrough in the tunnel not excavated each along tunnel, the pipe fitting
For slip casting pipe fitting.
4. a kind of small interval overlapping tunnel according to claim 1 presss from both sides rock ruggedized construction, it is characterised in that: described pair of drawing anchor
Bar (7) along upper layer tunnel (2) and lower layer tunnel (1) cross section lap outer profile to draw be arranged, along upper layer tunnel (2) and under
Layer tunnel (1) is longitudinally distributed in plum blossom-shaped parallel interval.
5. a kind of small interval overlapping tunnel according to claim 4 presss from both sides rock ruggedized construction, it is characterised in that: described pair of drawing anchor
Upper layer tunnel (2) bottom excavation contour line or more is protruded into the upper end of bar (7), and the end of Counter-pulled bolts (7) is cast in injection coagulation
In soil layer, at least two layers of the concrete layer.
6. a kind of small interval overlapping tunnel according to claim 5 presss from both sides rock ruggedized construction, it is characterised in that: the concrete
Layer is set on the reinforced mesh (9) to be close to be equipped with reinforced mesh (9) between folder rock (3) bottom concrete and upper layer concrete
There are W steel band of model (8).
7. a kind of small interval overlapping tunnel according to claim 6 presss from both sides rock ruggedized construction, it is characterised in that: described pair of drawing anchor
The upper end of bar (7) sequentially passes through reinforced mesh (9), W steel band of model (8), backing plate (18) from the bottom to top, and Counter-pulled bolts (7) end is curved
Folding is connect with backing plate (18), to be fixed on W steel band of model (8), and is further cast in concrete.
8. a kind of small interval overlapping tunnel according to claim 6 presss from both sides rock ruggedized construction, it is characterised in that: described pair of drawing anchor
The lower end of bar (7) passes through concrete layer and reinforced mesh (9) and W steel band of model (8), and passes through roof bolt plate (18) and fixed spiral shell
Bolt anchoring.
9. a kind of small interval overlapping tunnel according to claim 7 or 8 presss from both sides rock ruggedized construction, it is characterised in that: the W type
Steel band (8) has one group and is arranged along tunnel longitudinal direction parallel interval, and every W steel band of model (8) is correspondingly connected in a cross section
Counter-pulled bolts (7).
10. a kind of construction method of small interval overlapping tunnel folder rock ruggedized construction according to claim 9, feature exist
In specific implementation step is as follows:
Step 1: before upper layer tunnel (2) and lower layer tunnel (1) are excavated, first at lower layer tunnel (1) crown position, upper layer tunnel
(2) inverted arch and abutment wall position apply pipe shed support；
Step 2: first lower layer tunnel (1) partial excavation is excavated in construction lower layer tunnel (1) first after the completion of pipe canopy applies
The corresponding tunnel segment in folder rock (3) position in lower layer tunnel (1) makes to press from both sides rock (3) sufficiently exposure；
Step 3: first layer gunite concrete (10) construction and armature boring are successively carried out, after borehole cleaning after pressing from both sides rock (3) exposure
Reinforced mesh (9), W steel band of model (8), Counter-pulled bolts (7) are successively installed, and carry out bored grouting, termination point of anchor rod passes through anchor pole pad
Plate (18) is fixed on W steel band of model (8), sprays the second layer concrete (11) again, to complete the Counter-pulled bolts of lower layer tunnel (1)
(7) it constructs；
Step 4: continuing to excavate lower layer tunnel (1) remainder and carrying out preliminary bracing, after secondly switching to after the completion of lining construction
Portion's constructing tunnel, wherein rock-bolt length gos deep into upper layer tunnel (2) excavation contour line to be onstructed or more；
Step 5: upper layer tunnel (2) are constructed using branch, to closely pressing from both sides at rock (3), successively propelling construction is straight from far from folder rock (3)
To last close to (3) one, rock, folder；
Step 6: when excavating near anchor pole end, switch to hand excavation, after excavation, sprays the first layer concrete first
(10), reinforced mesh (9) then are laid on the first layer concrete (10) surface, installation W steel band of model (8) and backing plate (19) are cut off
Anchor pole excessive portion bends termination point of anchor rod, and is connected with backing plate (19), sprays the second layer concrete (11) again, to complete folder rock
(3) strengthening construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069449.8A CN108979676B (en) | 2018-09-13 | 2018-09-13 | Small-clear-distance overlapped tunnel rock clamping reinforcing structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069449.8A CN108979676B (en) | 2018-09-13 | 2018-09-13 | Small-clear-distance overlapped tunnel rock clamping reinforcing structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN108979676A true CN108979676A (en) | 2018-12-11 |
| CN108979676B CN108979676B (en) | 2024-03-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318771A (en) * | 2019-07-30 | 2019-10-11 | 湖南科技大学 | Shared Rock of Neighborhood Tunnel bracing means and Counter-pulled bolts brace pre axial force determine method |
| CN110318774A (en) * | 2019-06-28 | 2019-10-11 | 中国建筑第八工程局有限公司 | The reinforcement means of rock is pressed from both sides in proximity lamination tunnel |
| CN110424982A (en) * | 2019-07-02 | 2019-11-08 | 中国建筑第八工程局有限公司 | The reinforcement means of proximity lamination tunnel folder rock |
| CN110924985A (en) * | 2019-12-04 | 2020-03-27 | 中铁二院贵阳勘察设计研究院有限责任公司 | Long rock pillar construction method suitable for overlying thin rock stratum |
| CN111648793A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Small clear distance overlapping tunnel construction method |
| CN112267897A (en) * | 2020-11-03 | 2021-01-26 | 中国建筑土木建设有限公司 | Laminated tunnel cave group excavation construction method |
| CN112727512A (en) * | 2020-12-31 | 2021-04-30 | 同济大学 | Advanced detection, shock insulation and advanced transverse counter-pulling anchor rod system of ultra-small clear distance tunnel |
| CN113236321A (en) * | 2021-06-29 | 2021-08-10 | 招金矿业股份有限公司 | Anchor rod supporting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968655A (en) * | 1973-07-13 | 1976-07-13 | Mcglothlin William K | Method of reinforcing tunnels before excavation |
| CN102155234A (en) * | 2011-04-08 | 2011-08-17 | 中铁上海设计院集团有限公司 | Excavation construction method for unsymmetrical small-space tunnel |
| CN103628884A (en) * | 2012-08-29 | 2014-03-12 | 中国水电顾问集团华东勘测设计研究院 | Neighborhood tunnel middle clamping rock strengthening method |
| CN103939110A (en) * | 2014-05-07 | 2014-07-23 | 中铁第一勘察设计院集团有限公司 | Strengthening system for slight cracking of existing tunnel arch portion lining |
| CN208918561U (en) * | 2018-09-13 | 2019-05-31 | 中国建筑土木建设有限公司 | A kind of small interval overlapping tunnel folder rock ruggedized construction |
-
2018
- 2018-09-13 CN CN201811069449.8A patent/CN108979676B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968655A (en) * | 1973-07-13 | 1976-07-13 | Mcglothlin William K | Method of reinforcing tunnels before excavation |
| CN102155234A (en) * | 2011-04-08 | 2011-08-17 | 中铁上海设计院集团有限公司 | Excavation construction method for unsymmetrical small-space tunnel |
| CN103628884A (en) * | 2012-08-29 | 2014-03-12 | 中国水电顾问集团华东勘测设计研究院 | Neighborhood tunnel middle clamping rock strengthening method |
| CN103939110A (en) * | 2014-05-07 | 2014-07-23 | 中铁第一勘察设计院集团有限公司 | Strengthening system for slight cracking of existing tunnel arch portion lining |
| CN208918561U (en) * | 2018-09-13 | 2019-05-31 | 中国建筑土木建设有限公司 | A kind of small interval overlapping tunnel folder rock ruggedized construction |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318774A (en) * | 2019-06-28 | 2019-10-11 | 中国建筑第八工程局有限公司 | The reinforcement means of rock is pressed from both sides in proximity lamination tunnel |
| CN110424982A (en) * | 2019-07-02 | 2019-11-08 | 中国建筑第八工程局有限公司 | The reinforcement means of proximity lamination tunnel folder rock |
| CN110318771A (en) * | 2019-07-30 | 2019-10-11 | 湖南科技大学 | Shared Rock of Neighborhood Tunnel bracing means and Counter-pulled bolts brace pre axial force determine method |
| CN110318771B (en) * | 2019-07-30 | 2024-01-26 | 湖南科技大学 | Device for reinforcing rock clamping in small clear distance tunnel and method for determining pre-applied axial force of opposite-pulling anchor rod |
| CN110924985A (en) * | 2019-12-04 | 2020-03-27 | 中铁二院贵阳勘察设计研究院有限责任公司 | Long rock pillar construction method suitable for overlying thin rock stratum |
| CN111648793A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Small clear distance overlapping tunnel construction method |
| CN111648793B (en) * | 2020-04-24 | 2022-03-04 | 高军 | Small clear distance overlapping tunnel construction method |
| CN112267897A (en) * | 2020-11-03 | 2021-01-26 | 中国建筑土木建设有限公司 | Laminated tunnel cave group excavation construction method |
| CN112267897B (en) * | 2020-11-03 | 2022-06-17 | 中国建筑土木建设有限公司 | Construction method of laminated tunnel hole group |
| CN112727512A (en) * | 2020-12-31 | 2021-04-30 | 同济大学 | Advanced detection, shock insulation and advanced transverse counter-pulling anchor rod system of ultra-small clear distance tunnel |
| CN113236321A (en) * | 2021-06-29 | 2021-08-10 | 招金矿业股份有限公司 | Anchor rod supporting method |
| CN113236321B (en) * | 2021-06-29 | 2022-05-24 | 招金矿业股份有限公司 | Anchor rod supporting method |
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