CN108590703A - Tunnel arch and its installation method with elastic slip casting bag - Google Patents
Tunnel arch and its installation method with elastic slip casting bag Download PDFInfo
- Publication number
- CN108590703A CN108590703A CN201810352403.0A CN201810352403A CN108590703A CN 108590703 A CN108590703 A CN 108590703A CN 201810352403 A CN201810352403 A CN 201810352403A CN 108590703 A CN108590703 A CN 108590703A
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- China
- Prior art keywords
- slip casting
- arch
- casting bag
- country rock
- elastic
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- 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.)
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Links
- 238000007569 slipcasting Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 title claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000009412 basement excavation Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 239000013013 elastic material Substances 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000011440 grout Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 101150097977 arch-1 gene Proteins 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000008207 working 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
- E21D11/04—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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses the tunnel archs and its installation method of flexible slip casting bag.What arch was contacted with country rock is provided with slip casting bag on one side, slip casting bag is made of flexible elastic material, slip casting bag is adhesively glued at the arch back side, after arch installation, slurries are injected in slip casting bag, slip casting bag expands, and is full of the gap of arch and irregular country rock, and arch is bonded closely with country rock after grout cures.Compared with prior art, the advantages that present invention can give full play to the high capacity of arch, uniform force, of low cost, speed of application is fast, easy to operate, safe is widely portable in various drill+blast tunnels constructions.
Description
Technical field
The invention belongs to Tunnel Engineering drill bursting construction field, it is related to the tunnel arch with elastic slip casting bag and its installation
Method.
Background technology
Arch stability to tunnel and is applied using one of most important support unit during drilling and blasting method tunneling
The personal safety of worker person plays an important role.But it is meticulous regardless of excavating, excavation face is all rough, arch
It is difficult to closely, be comprehensively in direct contact with country rock, even if it is also part to have contact；It is not in place along with setting up, it may be said that
Arch and country rock are not closely connected, there is partially or fully hanging state.In this case, arch majority is by concentration of local
The effect of load or Eccentric Load, arch at this time is easily to deform（It is readily bent or surrenders）.For this purpose, arch is used after setting up
The wedgings such as cushion block, voussoir are allowed to give full play to support action with the distribution of adjustment force.Test result shows that arch connects with country rock
Contact is more, and contact is closer, and the bearing capacity of arch is higher.《Railway tunnel work construction technology guide》Middle regulation：" along arch
Outer rim is every 2 meters with gad or concrete precast block wedging ", but due to country rock surface irregularity, it is irregular to follow, encircle per Pin
Voussoir size needed for frame is all different, and manufacturing cost is very high；After the completion of arch is set up, wedge is squeezed between arch and the gap of country rock
Block, labor intensity is big, and the vibration force struck may shake the finger stone fallen in country rock, threaten the safety of construction personnel, because
This is not fitted closely in Practical Project middle arch rack with country rock completely..
Invention content
The purpose of the present invention be exactly in order to overcome the problems of the above-mentioned prior art, provide it is a kind of can be completely tight with country rock
The tunnel arch of closely connected conjunction, it has, and uniform force, high capacity, of low cost, speed of application is fast, easy to operate, safe etc.
Advantage.
The purpose of the present invention can be achieved through the following technical solutions：
Tunnel arch with elastic slip casting bag, which is characterized in that include n including arch and encircle section, wherein n is not less than 1
Positive integer, described n encircles in section, each one side m flexible resilient slip casting bag of setting for encircleing section and being contacted with country rock, and wherein m is
Positive integer not less than 1, the slip casting bag are provided with Grouting Pipe and exhaust pipe, and the Grouting Pipe connects filling system.
Preferably, the material of the slip casting bag is elastic geomembrane.
Preferably, the width of the slip casting bag is no more than 1.5 times of arch section width, and maximum volume is not less than arch after expansion
The volume in gap between section and country rock.
Preferably, the slip casting bag is adhesively glued in the one side that arch section is contacted with country rock.
Preferably, the slip casting bag side is provided with Grouting Pipe, and the other side is provided with exhaust pipe, the Grouting Pipe and
Exhaust pipe is furnished with pipe stopper.
The installation method of tunnel arch with elastic slip casting bag, this method specifically include following steps：
Step 1：After tunnel excavation, the volume in gap between arch section and country rock is obtained with three-dimensional laser scanner scanning；
Step 2：The width for choosing slip casting bag is not more than 1.5 times of arch section width, and maximum volume is not less than arch section after expansion
The slip casting bag of the volume in gap between country rock, by its with gluing knot arch section in the one side of the contact of country rock；
Step 3：Set up arch section；
Step 4：Connect Grouting Pipe and filling system；
Step 5：Valve is opened, grouting pump is started, slurries are injected into slip casting bag, and record the reading of flowmeter and pressure gauge；
Step 6：Reach arch maximum when flow meter reading is equal to the volume in gap or pressure gauge reading between arch section and country rock and hold
When carrying power, stop slip casting, disconnect Grouting Pipe and filling system, Grouting Pipe and exhaust pipe are blocked with pipe stopper.
Compared with prior art, the invention has the characteristics that：
1. slip casting bag material is flexible elastic material, in bag after the sufficient slurries of injection, no matter how uneven excavation face is, and note
Slurry bag can be filled up completely the gap between arch and country rock, make arch uniform force, can give full play to the bearing capacity of arch；
2. slip casting bag is made of common earth working material, of low cost；
3. slip casting bag is installed using adhesive type, simple and fast；
4. finger stone is fallen caused by avoiding conventional method impact wedge block possibility, safe.
Description of the drawings
Fig. 1 is the tunnel arch overall schematic for having in embodiment 1 elastic slip casting bag；
Fig. 2 is certain section of arch elasticity slip casting bag grouting filling schematic diagram in embodiment 1；
Description of symbols in figure：
1-arch section, 2-country rocks, 3-slip casting bags, 31-slurries, 32-glue, 33-Grouting Pipes, 34-exhaust pipes, 35-pluggings
Plug, 6-filling systems, 61-flowmeters, 62-pressure gauges, 63-valves, 64-grouting pumps.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
1 frame of tunnel arch with elastic slip casting bag, structure is as depicted in figs. 1 and 2, including two arch sections 1, each to encircle section 1
1 slip casting bag 3 is arranged in the one side contacted with country rock 2.Slip casting bag 3 is made of elastic geomembrane, and width is arch 1 width 1.5 of section
Times, maximum volume is equal to the volume in gap between arch section 1 and country rock 2 after expansion, and 3 side of slip casting bag is provided with Grouting Pipe 33, separately
Side is provided with exhaust pipe 34, and slip casting bag 3 is fixed on glue 32 on arch.After arch is set up, Grouting Pipe 33 connects with filling system 6
It connects, after the completion of slip casting, Grouting Pipe 33 and exhaust pipe 34 is blocked with pipe stopper 35.
The installation method of tunnel arch with elastic slip casting bag, this method specifically include following steps：
Step 1：After tunnel excavation, the volume in gap between arch section 1 and country rock 2 is obtained with three-dimensional laser scanner scanning；
Step 2：1.5 times that width is equal to arch section width are chosen, and maximum volume is equal between arch section 1 and country rock 2 after expansion
The slip casting bag 3 of the volume in gap, by its with glue 32 be bonded in arch section 1 in the one side of the contact of country rock 2；
Step 3：Set up arch section 1；
Step 4：Connect Grouting Pipe 33 and filling system 6；
Step 5：Valve 63 is opened, grouting pump 64 is started, slurries 31 are injected into slip casting bag 3, and record flowmeter 61 and pressure gauge
62 reading；
Step 6：Reach arch when the reading of flowmeter 61 is equal to the volume in gap or the reading of pressure gauge 62 between arch section 1 and country rock 2
When maximum load capacity, stop slip casting, disconnect Grouting Pipe 33 and filling system 6, Grouting Pipe 33 and exhaust pipe are blocked with pipe stopper 35
34。
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
Claims (7)
1. the tunnel arch with elastic slip casting bag, which is characterized in that include n including arch and encircle section（1）, wherein n is not small
In 1 positive integer, described n arch section（1）In, each encircle section（1）With country rock（2）M flexible resilient is arranged in the one side of contact
Slip casting bag（3）, wherein m is the positive integer not less than 1, the slip casting bag（3）It is provided with Grouting Pipe（33）And exhaust pipe（34）,
The Grouting Pipe（33）Connect filling system（6）.
2. the tunnel arch with elastic slip casting bag according to claim 1, which is characterized in that the slip casting bag（3）
Material be elastic geomembrane.
3. the tunnel arch with elastic slip casting bag according to claim 2, which is characterized in that the elastic geomembrane
It is at least one layer of.
4. the tunnel arch with elastic slip casting bag according to claim 1, which is characterized in that slip casting bag（3）Width
No more than arch section（1）1.5 times of width, maximum volume is not less than arch section after expansion（1）With country rock（2）Between gap volume.
5. the tunnel arch with elastic slip casting bag according to claim 1, which is characterized in that slip casting bag（3）By glue
（32）It is bonded in arch section（1）With country rock（2）In the one side of contact.
6. the tunnel arch with elastic slip casting bag according to claim 1, which is characterized in that slip casting bag（3）Side is set
It is equipped with Grouting Pipe（33）, the other side is provided with exhaust pipe（34）, Grouting Pipe（33）And exhaust pipe（34）Equipped with pipe stopper（35）.
7. a kind of such as claim 1 to 6 any one of them has the installation method of the tunnel arch of elastic slip casting bag, feature
It is, this method specifically includes following steps：
Step 1：After tunnel excavation, arch section is obtained with three-dimensional laser scanner scanning（1）With country rock（2）Between gap volume；
Step 2：Choose slip casting bag（3）Width no more than arch section（1）1.5 times of width, and maximum volume is not small after expansion
In arch section（1）With country rock（2）Between gap volume slip casting bag（3）, used glue（32）It is bonded in arch section（1）With country rock
（2）Contact one side on；
Step 3：Set up arch section（1）；
Step 4：Connect Grouting Pipe（33）With filling system（6）；
Step 5：Open valve（63）, start grouting pump（64）, by slurries（31）Inject slip casting bag（3）, and record flowmeter
（61）And pressure gauge（62）Reading；
Step 6：Work as flowmeter（61）Reading is equal to arch section（1）With country rock（2）Between gap volume or pressure gauge（62）Reading
When reaching arch maximum load capacity, stop slip casting, disconnects Grouting Pipe（33）With filling system（6）, use pipe stopper（35）Block note
Slurry pipe（33）And exhaust pipe（34）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810352403.0A CN108590703A (en) | 2018-04-19 | 2018-04-19 | Tunnel arch and its installation method with elastic slip casting bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810352403.0A CN108590703A (en) | 2018-04-19 | 2018-04-19 | Tunnel arch and its installation method with elastic slip casting bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108590703A true CN108590703A (en) | 2018-09-28 |
Family
ID=63613758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810352403.0A Pending CN108590703A (en) | 2018-04-19 | 2018-04-19 | Tunnel arch and its installation method with elastic slip casting bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590703A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798121A (en) * | 2019-03-22 | 2019-05-24 | 中建八局轨道交通建设有限公司 | The construction method of existing structure bottom plate is worn under bored tunnel is closely connected |
| CN109882193A (en) * | 2019-04-08 | 2019-06-14 | 安徽理工大学 | A kind of circulation internal pressure loading method of large scale simulation roadway support body |
| CN109931077A (en) * | 2019-03-29 | 2019-06-25 | 中南大学 | Support system and its construction method for Segment rehabilitation |
| CN110094215A (en) * | 2019-05-30 | 2019-08-06 | 三峡大学 | Non-newtonian fluid liner supporting structure and construction method |
| CN111305871A (en) * | 2020-03-09 | 2020-06-19 | 南昌大学 | Telescopic grouting filling type shield segment soil supporting device and construction method |
| CN113982656A (en) * | 2021-11-17 | 2022-01-28 | 山东建筑大学 | Steel-film composite restrained arch frame for roadway (tunnel) support and construction process |
| CN114109441A (en) * | 2021-10-08 | 2022-03-01 | 陕西同人应用材料有限公司 | Composite cavity vacuum tension elastic die and rapid construction process using same |
| CN114857367A (en) * | 2022-04-02 | 2022-08-05 | 中国一冶集团有限公司 | Post-grouting expansive underground pipeline joint plugging structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895480A (en) * | 1987-09-11 | 1990-01-23 | Signode Corporation | Method and apparatus for formation of a tunnel lining |
| CN103790597A (en) * | 2014-01-26 | 2014-05-14 | 太原理工大学 | Active backfilling support method with pressure support used |
| CN107191197A (en) * | 2017-06-14 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of shield duct piece and its pushed away in shield sky by the application in Tunneling by mining method |
| CN206668280U (en) * | 2017-04-24 | 2017-11-24 | 黄河勘测规划设计有限公司 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
-
2018
- 2018-04-19 CN CN201810352403.0A patent/CN108590703A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895480A (en) * | 1987-09-11 | 1990-01-23 | Signode Corporation | Method and apparatus for formation of a tunnel lining |
| CN103790597A (en) * | 2014-01-26 | 2014-05-14 | 太原理工大学 | Active backfilling support method with pressure support used |
| CN206668280U (en) * | 2017-04-24 | 2017-11-24 | 黄河勘测规划设计有限公司 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
| CN107191197A (en) * | 2017-06-14 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of shield duct piece and its pushed away in shield sky by the application in Tunneling by mining method |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798121A (en) * | 2019-03-22 | 2019-05-24 | 中建八局轨道交通建设有限公司 | The construction method of existing structure bottom plate is worn under bored tunnel is closely connected |
| CN109931077A (en) * | 2019-03-29 | 2019-06-25 | 中南大学 | Support system and its construction method for Segment rehabilitation |
| CN109882193A (en) * | 2019-04-08 | 2019-06-14 | 安徽理工大学 | A kind of circulation internal pressure loading method of large scale simulation roadway support body |
| CN109882193B (en) * | 2019-04-08 | 2021-10-01 | 安徽理工大学 | Cyclic internal pressure loading method for large-size simulation roadway support body |
| CN110094215A (en) * | 2019-05-30 | 2019-08-06 | 三峡大学 | Non-newtonian fluid liner supporting structure and construction method |
| CN111305871A (en) * | 2020-03-09 | 2020-06-19 | 南昌大学 | Telescopic grouting filling type shield segment soil supporting device and construction method |
| CN114109441A (en) * | 2021-10-08 | 2022-03-01 | 陕西同人应用材料有限公司 | Composite cavity vacuum tension elastic die and rapid construction process using same |
| CN114109441B (en) * | 2021-10-08 | 2024-05-28 | 陕西同人应用材料有限公司 | Composite cavity vacuum tension elastic die and rapid construction process using same |
| CN113982656A (en) * | 2021-11-17 | 2022-01-28 | 山东建筑大学 | Steel-film composite restrained arch frame for roadway (tunnel) support and construction process |
| CN113982656B (en) * | 2021-11-17 | 2024-01-09 | 山东建筑大学 | Steel-film composite constraint arch frame for roadway (tunnel) support and construction process |
| CN114857367A (en) * | 2022-04-02 | 2022-08-05 | 中国一冶集团有限公司 | Post-grouting expansive underground pipeline joint plugging structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180928 |