CN110318793A - Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole - Google Patents
Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole Download PDFInfo
- Publication number
- CN110318793A CN110318793A CN201910630192.7A CN201910630192A CN110318793A CN 110318793 A CN110318793 A CN 110318793A CN 201910630192 A CN201910630192 A CN 201910630192A CN 110318793 A CN110318793 A CN 110318793A
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- Prior art keywords
- construction
- anchor pole
- inverted arch
- tunnel
- long anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 104
- 239000011435 rock Substances 0.000 title claims abstract description 47
- 210000002966 serum Anatomy 0.000 claims abstract description 12
- 238000007569 slipcasting Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000011440 grout Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 abstract description 46
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- -1 For example Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 239000002699 waste material Substances 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
- E21D11/14—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 OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- 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
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the 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)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides the construction method that a kind of soft rock large deformation section tunnel inverted arch handles long anchor pole, the construction method is the following steps are included: S1) inverted arch position in tunnel is longitudinal according to the multiple construction rings of the first pitch mark along tunnel, and according to the first multiple construction points of circumferential direction pitch mark on each construction ring；S2) long anchor pole is performed in the construction point of each construction ring in the tunnel；S3) mixed serum is injected into long anchor pole；S4 after) slip casting in long anchor pole is completed and continues first time period, anchor plate and nut are installed in the exposed junction of each long anchor pole.Construction method provided by the invention by performing long anchor pole to the inverted arch portion of tunnel deformation segment as requested, and the soil body by reinforcing country rock around deformation section inverted arch portion to long bolt grouting, the soil body of country rock around tunnel deformation segment inverted arch portion can be stablized, it is ensured that the country rock soil body no longer deforms around inverted arch portion after the completion of the construction of subsequent tunnel deformation section inverted arch portion.
Description
Technical field
The present invention relates to technical field of tunnel construction, and in particular, to a kind of processing of soft rock large deformation section tunnel inverted arch is used
The construction method of long anchor pole.
Background technique
Your it is located at railway Zhenxiong into complete segmental construction in the tunnel Gao Po, overall length 7939m, one-tunnel two-tracks, route longitudinal slope
Single side goes up a slope, maximum buried depth about 445m, the tunnel Gao Po soft rock large deformation Disease Processing segment length 457.4m, and when constructing tunnel need to lead to
Cross tomography at 3, at 1 to tiltedly, large size joint band at anticline and 2 at 2, also to pass through P in the middle part of tunnel2L high methane coal measure strata, tunnel
It is influenced and the influence of the unfavorable factors such as construction, multiple electrodes after road construction by complicated landform, is occurred after the completion of constructing tunnel
Supporting Structure deformation causes inverted arch fill surface in tunnel phenomena such as drum swells in appearance in crack and fill surface longitudinally occur, on
The generation of phenomenon is stated mainly since the Supporting Structure deformation in tunnel inverted arch portion causes, inverted arch portion supporting construction is deformed in tunnel
Mainly due to around tunnel inverted arch portion the country rock soil body deform so that oppress inverted arch portion supporting construction so that the supporting of inverted arch portion
Structure deforms, and therefore, to solve tunnel inverted arch portion Supporting Structure deformation and need soil to country rock around tunnel inverted arch position
Body is reinforced, it is ensured that country rock inside soil body is stablized around inverted arch, and the country rock soil body around inverted arch is avoided to deform and destroy
Inverted arch supporting construction, while preventing the country rock soil body after the completion of subsequent inverted arch supporting from deforming again, therefore, need a kind of construction
Method removes the soil body reinforced around inverted arch position.
Summary of the invention
The purpose of the present invention is for the country rock inside soil body in the Tunnel in solution soft rock strata because of tunnel perimeter
Large deformation occurs for structural instability, causes inverted arch Supporting Structure deformation that inverted arch fill surface is caused longitudinally to occur in crack and fill surface
Before the problems such as drum swells in appearance, a kind of processing of soft rock large deformation section tunnel inverted arch is provided with the construction method of long anchor pole to tunnel
The soil body around road inverted arch is reinforced, and the danger that surrounding soil deforms again after the completion of inverted arch supporting is prevented, after avoiding
The supporting construction of continuous inverted arch is destroyed again.
To achieve the goals above, the embodiment of the present invention provides a kind of soft rock large deformation section tunnel inverted arch and handles long anchor pole
Construction method, the construction method is the following steps are included: S1) inverted arch position in tunnel is between tunnel is longitudinal according to first
Away from the multiple construction rings of label, and according to the first multiple construction points of circumferential pitch mark on each construction ring；S2) in the tunnel
Each construction ring construction point on perform long anchor pole；S3) mixed serum is injected into the long anchor pole；S4) in the long anchor
After the slip casting of bar is completed and continues first time period, anchor plate and nut are installed in the exposed junction of each long anchor pole.
Specifically, first spacing is between 1.2m-1.5m, and the described first circumferential spacing is between 1.2m-1.5m.
Specifically, it is located at different horizontal planes per the construction point on two adjacent construction rings.
Specifically, the long anchor pole includes: two connector sleeves and three hollow bolt bodies with the first given length.
Specifically, first given length is 4.2m.
Specifically, the hollow bolt body is made of seamless steel pipe.
Specifically, step S2) in perform long anchor pole in the construction point of each construction ring in the tunnel, comprising: every
The bolthole with the first given depth is drilled out in one construction point；Assemble the long anchor pole, and the long anchor that assembling will be completed
Bar is placed in the bolthole.
Specifically, first given depth is 12m.
Specifically, the mixed serum is cement grout.
Soft rock large deformation section provided by the invention tunnel inverted arch handles the construction method of long anchor pole, and tunnel is in soft rock geology
Completed inverted arch supporting in environment, the country rock around tunnel occur large deformation due to cause inverted arch Supporting Structure deformation to draw
Hair inverted arch fill surface longitudinally occur occurring in crack and fill surface on drum protuberance the problems such as, when solving the above problems, need pair
The soil body around inverted arch portion is reinforced, it is ensured that inverted arch portion surrounding soil is stablized, and construction method provided by the invention can be to tunnel
The soil body around the inverted arch portion of road deformation section is reinforced, the ability after the reinforcing for completing tunnel deformation segment inverted arch portion surrounding soil
Ensure that the soil stabilization of the country rock around inverted arch portion after the completion of subsequent inverted arch supporting will not deform again, avoids inverted arch branch
Protection structure is deformed again by destroying, solve inverted arch fill surface longitudinally occur occurring in crack and fill surface on drum protuberance
The problems such as generation again；In the soil body reinforced around deformation section inverted arch, first at tunnel inverted arch position along the longitudinal direction in tunnel
According to the multiple construction rings of the first pitch mark, the longitudinal pitch of long anchor pole is determined, then according to first on each construction ring
The given circumferential direction multiple construction points of pitch mark determine the horizontal spacing between long anchor pole, and the construction point marked is determined most
The construction location of long anchor pole eventually, performs long anchor pole in each construction point, by long bolt grouting with Strengthening Tunnel deformation section
The soil body of country rock around inverted arch installs anchor plate and spiral shell in the exposed junction of long anchor pole after slip casting is completed to continue first time period
It is female.
Construction method provided by the invention is passed through by performing long anchor pole as requested to the inverted arch portion of tunnel deformation segment
The depth of the soil body of country rock is deeper around the inverted arch portion that long bolt grouting can be reinforced, and can preferably stable tunnel deformation segment face upward
The soil body of country rock around arch, it is ensured that subsequent tunnel deformation section inverted arch portion country rock soil body around inverted arch portion after the completion of supporting construction
It no longer deforms, subsequent inverted arch supporting is avoided to be destroyed again and inverted arch fill surface is caused crack and fill surface longitudinally occur
Appearance again in upper appearance the problems such as drum protuberance.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the construction method that the soft rock large deformation section tunnel inverted arch that embodiment of the present invention provides handles long anchor pole
Flow chart.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings either for it is vertical, on vertical or gravity direction for each component mutual alignment relation
Word is described.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment of the present invention provides the construction method that a kind of soft rock large deformation section tunnel inverted arch handles long anchor pole, Fig. 1
The flow chart that the construction method of long anchor pole is handled for soft rock large deformation section tunnel inverted arch, as shown in Figure 1, the construction method packet
Including following steps: S1) inverted arch position in tunnel is longitudinal according to the multiple construction rings of the first pitch mark along tunnel, and each
According to the first multiple construction points of circumferential pitch mark on construction ring；S2 it) is applied in the construction point of each construction ring in the tunnel
Do long anchor pole；S3) mixed serum is injected into the long anchor pole；S4) when the slip casting of the long anchor pole is completed and continues first
Between after section, install anchor plate and nut in the exposed junction of each long anchor pole.
Soft rock large deformation section provided by the invention tunnel inverted arch handles the construction method of long anchor pole, sends out using in tunnel
The inverted arch position for the shape that changes marks multiple construction rings, then marks construction point on each construction ring, passes through the first of setting
What spacing and the first circumferential spacing determined the i.e. each anchor pole of construction point performs position, in each construction after determining construction point
Perform long anchor pole on point, backward long anchor pole injection mixed serum, the mixed serum of injection penetrates into around deformation section inverted arch portion
In the soil body of country rock, reinforced together with the long anchor pole being embedded into the country rock soil body around deformation section inverted arch portion after mixed serum solidification
The soil body in country rock installs anchor plate and nut in the exposed junction of each long anchor pole after slip casting is completed to continue first time period,
Construction method provided by the invention can reinforce inverted arch portion before the inverted arch portion progress supporting to tunnel deformation segment by long anchor pole
The soil body around position, and reinforcement depth is deeper, it is ensured that subsequent tunnel deformation section inverted arch portion's supporting is more stable, avoids subsequent inverted arch
Supporting is destroyed again, solves inverted arch fill surface and the problems such as drum swells in appearance in crack and fill surface longitudinally occurs.
For the soil body for enabling long anchor pole to reinforce around inverted arch portion and the use of long anchor pole is saved, it is specifically, described
First spacing is between 1.2m-1.5m, and the described first circumferential spacing is between 1.2m-1.5m.By the first spacing and the first circumferential spacing
Be arranged after it between 1.2m.-1.5m, can guarantee to perform a root long anchor pole in construction point injected by long anchor pole it is mixed
The range of scatter of slurries is closed in default range, both will not over range cause to waste, too small influence pair will not be spread
The consolidation effect of the soil body.
When setting performs, specifically, it is located at different horizontal planes per the construction points on two adjacent construction rings.It will
Construction point setting on two adjacent construction rings is in different level, conducive to the uniform soil for reinforcing country rock around inverted arch portion
Body, for example, can may insure in this way in certain regional scope can all there is length by multiple construction points according to quincuncial arrangement
The soil body of country rock around bolt anchorage inverted arch portion avoids soil stabilization caused by long anchor pole is concentrated and concentrates.
In one embodiment, for the soil body more preferably reinforced around deformation section inverted arch portion, specifically, the long anchor pole packet
It includes: two connector sleeves and three hollow bolt bodies with the first given length.When in use according to hollow bolt body, connection
The sequence of set, hollow bolt body, connector sleeve and hollow bolt body, which successively assembles, forms the long anchor pole with certain length,
In, hollow bolt body is selectedSteel pipe be made, it is preferable that the hollow bolt body is made of seamless steel pipe, specifically
Ground selects Q345 seamless steel pipe to make hollow bolt body, it is preferable that first given length is 4.2m, i.e., each middle spare anchor
Body of rod length is 4.2m, ease of assembly at different length anchor pole, by the test in identical geological environment, after reference test
Perform efficiency, loss and cost consideration, select D42/R32L120 type, the reinforced connection interplanting of long 120mm, wall thickness 5mm
For long anchor pole connector sleeve, it is threadedly coupled between hollow bolt body and connector sleeve, the long rock-bolt length being assembled into is about 12.6m, this
Using the soil body of country rock around the longer long bolt anchorage inverted arch portion of length, reinforcing area is deeper, wider for invention, is conducive to stable become
The soil body of country rock around shape section inverted arch portion.
In one embodiment, select safe industry TY400 Down-hole rolling rig as length when performing long anchor pole in each construction point
Construction equipment used when anchor pole, specifically, step S2) in perform long anchor in the construction point of each construction ring in the tunnel
Bar, comprising: drill out the bolthole with the first given depth in each construction point；The long anchor pole is assembled, and will be complete
It is placed in the bolthole at the long anchor pole of assembling.When construction, first is first drilled out in construction point using TY400 Down-hole rolling rig
The bolthole of given depth, it is preferable that first given depth is 12m, and after drilling out bolthole, assembling is placed in into bolthole
Good long anchor pole is placed in after long anchor pole and injects mixed serum by long anchor pole, and specifically, the mixed serum is cement grout,
For example, cement single slurry, cement single slurry ratio of mud 0.8:1, slip casting is made using P42.5 ordinary cement in the cement grout of injection
Whole pore pressure force control is in 1.5~2Mpa, in order to ensure mixed serum can reinforce the soil body of country rock around deformation section inverted arch portion, to
Grouting amount in each long anchor pole controls more than design flow, just can ensure that grouting amount abundance, guarantees to deformation section inverted arch portion week
The reinforcing of the country rock soil body.
Soft rock large deformation section provided by the invention tunnel inverted arch handles the construction method of long anchor pole, and tunnel is in soft rock geology
Completed inverted arch supporting in environment, the country rock around tunnel occur large deformation due to cause inverted arch Supporting Structure deformation to draw
Hair inverted arch fill surface longitudinally occur occurring in crack and fill surface on drum protuberance the problems such as, when solving the above problems, need pair
The soil body around inverted arch portion is reinforced, it is ensured that inverted arch portion surrounding soil is stablized, and construction method provided by the invention can be to tunnel
The soil body around the inverted arch portion of road deformation section is reinforced, the ability after the reinforcing for completing tunnel deformation segment inverted arch portion surrounding soil
Ensure that the soil stabilization of the country rock around inverted arch portion after the completion of subsequent inverted arch supporting will not deform again, avoids inverted arch branch
Protection structure is deformed again by destroying, solve inverted arch fill surface longitudinally occur occurring in crack and fill surface on drum protuberance
The problems such as generation again；In the soil body reinforced around deformation section inverted arch, first at tunnel inverted arch position along the longitudinal direction in tunnel
According to the multiple construction rings of the first pitch mark, the longitudinal pitch of long anchor pole is determined, then according to first on each construction ring
The given circumferential direction multiple construction points of pitch mark determine the horizontal spacing between long anchor pole, and the construction point marked is determined most
The construction location of long anchor pole eventually, performs long anchor pole in each construction point, by long bolt grouting with Strengthening Tunnel deformation section
The soil body of country rock around inverted arch installs anchor plate and spiral shell in the exposed junction of long anchor pole after slip casting is completed to continue first time period
It is female.
Construction method provided by the invention is passed through by performing long anchor pole as requested to the inverted arch portion of tunnel deformation segment
The depth of the soil body of country rock is deeper around the inverted arch portion that long bolt grouting can be reinforced, and can preferably stable change tunnel-type section face upward
The soil body of country rock around arch, it is ensured that subsequent tunnel deformation section inverted arch portion country rock soil body around inverted arch portion after the completion of supporting construction
It no longer deforms, subsequent inverted arch supporting is avoided to be destroyed again and inverted arch fill surface is caused crack and fill surface longitudinally occur
Appearance again in upper appearance the problems such as drum protuberance.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. the construction method that a kind of soft rock large deformation section tunnel inverted arch handles long anchor pole, which is characterized in that the construction method
The following steps are included:
S1) the inverted arch position in tunnel is longitudinal according to the multiple construction rings of the first pitch mark along tunnel, and in each construction ring
On according to the first circumferential multiple construction points of pitch mark；
S2) long anchor pole is performed in the construction point of each construction ring in the tunnel；
S3) mixed serum is injected into the long anchor pole；
S4 it) after the slip casting of the long anchor pole is completed and continues first time period, is installed in the exposed junction of each long anchor pole
Anchor plate and nut.
2. construction method according to claim 1, which is characterized in that first spacing is between 1.2m-1.5m, and described
One circumferential spacing is between 1.2m-1.5m.
3. construction method according to claim 1, which is characterized in that be located at per the construction point on two adjacent construction rings
Different horizontal planes.
4. construction method according to claim 1, which is characterized in that the long anchor pole includes: two connector sleeves and three
Hollow bolt body with the first given length.
5. construction method according to claim 4, which is characterized in that first given length is 4.2m.
6. construction method according to claim 4, which is characterized in that the hollow bolt body is made of seamless steel pipe.
7. construction method according to claim 1, which is characterized in that step S2) in the tunnel each construction ring
Construction point on perform long anchor pole, comprising:
The bolthole with the first given depth is drilled out in each construction point；
The long anchor pole is assembled, and the long anchor pole for completing assembling is placed in the bolthole.
8. construction method according to claim 7, which is characterized in that first given depth is 12m.
9. construction method according to claim 1, which is characterized in that the mixed serum is cement grout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630192.7A CN110318793A (en) | 2019-07-12 | 2019-07-12 | Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630192.7A CN110318793A (en) | 2019-07-12 | 2019-07-12 | Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110318793A true CN110318793A (en) | 2019-10-11 |
Family
ID=68123225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910630192.7A Pending CN110318793A (en) | 2019-07-12 | 2019-07-12 | Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole |
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| CN (1) | CN110318793A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203756203U (en) * | 2014-06-11 | 2014-08-06 | 泰安振声科技工程有限公司 | Self-drilling type full-thread bolt grouting anchor rod |
| CN104847374A (en) * | 2015-04-24 | 2015-08-19 | 长安大学 | Soft rock large-deformation tunnel supporting system and construction method thereof |
| US20150308269A1 (en) * | 2013-05-16 | 2015-10-29 | MatLok, Inc. | Mine roof bolt system |
| CN105937396A (en) * | 2016-05-27 | 2016-09-14 | 中铁隧道集团有限公司 | Support method for ridge section extreme-high geostress soft rock tunnel construction deformation control |
| CN106593483A (en) * | 2016-12-14 | 2017-04-26 | 中铁十局集团第四工程有限公司 | Construction method for weak surrounding rock tunnel inverted arch long anchor rod |
| CN208310824U (en) * | 2018-05-17 | 2019-01-01 | 中交第一公路勘察设计研究院有限公司 | It is a kind of to increase the resistance long anchor structure of Extensible type suitable for the multistage of large deformation tunnel |
-
2019
- 2019-07-12 CN CN201910630192.7A patent/CN110318793A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150308269A1 (en) * | 2013-05-16 | 2015-10-29 | MatLok, Inc. | Mine roof bolt system |
| CN203756203U (en) * | 2014-06-11 | 2014-08-06 | 泰安振声科技工程有限公司 | Self-drilling type full-thread bolt grouting anchor rod |
| CN104847374A (en) * | 2015-04-24 | 2015-08-19 | 长安大学 | Soft rock large-deformation tunnel supporting system and construction method thereof |
| CN105937396A (en) * | 2016-05-27 | 2016-09-14 | 中铁隧道集团有限公司 | Support method for ridge section extreme-high geostress soft rock tunnel construction deformation control |
| CN106593483A (en) * | 2016-12-14 | 2017-04-26 | 中铁十局集团第四工程有限公司 | Construction method for weak surrounding rock tunnel inverted arch long anchor rod |
| CN208310824U (en) * | 2018-05-17 | 2019-01-01 | 中交第一公路勘察设计研究院有限公司 | It is a kind of to increase the resistance long anchor structure of Extensible type suitable for the multistage of large deformation tunnel |
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Application publication date: 20191011 |
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