CN104612708B - A kind of suspension device and method for protecting support of loess tunnel - Google Patents
A kind of suspension device and method for protecting support of loess tunnel Download PDFInfo
- Publication number
- CN104612708B CN104612708B CN201410811037.2A CN201410811037A CN104612708B CN 104612708 B CN104612708 B CN 104612708B CN 201410811037 A CN201410811037 A CN 201410811037A CN 104612708 B CN104612708 B CN 104612708B
- Authority
- CN
- China
- Prior art keywords
- plank
- tunnel
- steel arch
- shelf
- arch
- 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.)
- Expired - Fee Related
Links
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
- E21D11/02—Lining predominantly with wood
-
- 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
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- 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
Abstract
The invention discloses the suspension device and method for protecting support of a kind of loess tunnel, including：Plank one is arranged on the outermost layer of suspension device, is close to Tunnel wall and surrounds tunnel one week, forms Load -carring arch；In some steel arch-shelfs of internal layer interval setting of the plank one, the steel arch-shelf is close to one setting of plank；Plank two, the plank two and steel arch-shelf flush are filled between the adjacent two Pin steel arch-shelfs；The prefabricated reinforced concrete segment is close to the internal layer of steel arch-shelf and plank two, is arranged on the innermost layer of suspension device.Beneficial effect of the present invention：Easy construction, supporting intensity is high, it is safe and reliable, whole process need not all use water, the quantity and spacing of steel arch-shelf can be adjusted according to on-site actual situations, two linings more can ensure that construction quality than conventional anchor spraying concrete using prefabricated reinforced concrete segment, and prefabricated reinforced concrete segment also causes tunnel more attractive in appearance.
Description
Technical field
The present invention relates to constructing tunnel support technology field, more particularly to a kind of collapsible loess tunnel suspension device and
Maintaining method.
Background technology
The settlement by soaking of loess is a kind of special engineering geological property of loess.Loess is with deadweight or outside loading
Under, the property for occurring to sink suddenly is destroyed rapidly by structure after water-soaked.The reason for causing saturated yielding be because loess with powder and
Based on hydrophilic weak mineral, with macroporous structure, natural moisture content is little, strong cementing with salinity with reference to water link with cosmid
Link, a constant load can be undertaken when being dried and deformed less, but after soaking, grogs link is obviously reduced, and causes soil structure
Destruction produces Collapsing Deformation.
Having settlement by soaking the loess for being distributed widely in China northeast, northwest, Central China and East China some areas more.Collapsibility of loess
Harm to Human dried bloodstains is very big, often damages building, channel, storehouse bank.Therefore, in Collapsible Loess District
When being built, to pay special attention to prevent the infiltration of water, and take necessary artificial soil improvement or other prophylactico-therapeutic measuress.But
Tunnel is usually the method for protecting support for adding gunite concrete using anchor pole, and as water is necessarily entrained with during gunite concrete, loess is inhaled
The moisture content received in concrete easily becomes unstable, and this causes Canal in Loess Area to be not suitable for adding gunite concrete using traditional anchor pole
Support pattern.And be applied to the shield machine of weak soil due to being, using mud and water balance principle, water equally to be had in excavation face so that
The water suction of excavation face loess easily becomes unstable.Also no supporting scheme carried out under water-less environment in existing method, because
This, the method for tunnel construction studied under the absolutely dry environment in Canal in Loess Area has great importance.
The content of the invention
The purpose of the present invention is exactly to solve above-mentioned technical problem, there is provided a kind of supporting dress of collapsible loess tunnel
Put and method for protecting support, the quantity and spacing of steel arch-shelf, and prefabricated armored concrete can be adjusted according to on-site actual situations
Section of jurisdiction also causes tunnel more attractive in appearance.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of suspension device of loess tunnel, including：Some planks one and steel arch-shelf for tunnel support, prefabricated steel
Reinforced concrete section of jurisdiction and the plank two being filled between two Pin steel arch-shelfs；
The plank one is arranged on the outermost layer of suspension device, is close to Tunnel wall and surrounds tunnel one week, is formed and is carried
Arch；In some steel arch-shelfs of internal layer interval setting of the plank one, the steel arch-shelf is close to one setting of plank；Described adjacent two
Plank two, the plank two and steel arch-shelf flush are filled between Pin steel arch-shelfs；The prefabricated reinforced concrete segment is tight
Patch steel arch-shelf and the inner layer wall of plank two, are arranged on the innermost layer of suspension device.
Fixed with reinforcement welding between the two Pin steel arch-shelfs.
It is fixedly connected between the plank one so that plank forms a Load -carring arch.
A kind of method for protecting support of loess tunnel, including：
After tunnel excavation is complete, is close to Tunnel ledge and sets some planks one for tunnel support, the plank one it
Between be fixedly connected, formed Load -carring arch；
It is close to one internal layer of plank interval and sets up some steel arch-shelfs, is fixed with reinforcement welding between adjacent two Pin steel arch-shelfs, phase
Fill the plank two of suitable size, plank two and steel arch-shelf flush in space between adjacent two Pin steel arch-shelfs；
Prefabricated reinforced concrete segment is installed after the setting time of interval, propping up for loess tunnel is completed under anhydrous environment
Shield.
Beneficial effect of the present invention：
Compared with prior art, the invention provides a kind of method that tunnel support is carried out under water-less environment.The present invention
With easy construction, supporting intensity is high, and the advantages of safe and reliable, whole process need not all use water, can be according to live real
Border situation adjusts the quantity and spacing of steel arch-shelf, and two linings adopt prefabricated reinforced concrete segment than conventional anchor spraying concrete more
Construction quality is can ensure that, and prefabricated reinforced concrete segment also causes tunnel more attractive in appearance.
Set up plank after tunnel excavation immediately and steel arch-shelf can provide supporting power to tunnel after tunnel excavation in time, in time
Constraint tunnel deformation, be conducive to stablizing for tunnel；It is connected with nail between plank one so that plank one itself is formed
The Load -carring arch of one entirety, can effectively prevent coming off for the Tunnel wall surface soil body.
Steel arch-shelf and plank one constitute Load -carring arch jointly, and steel arch-shelf can provide very high supporting power, be main load-bearing
Component, is fixed with reinforcement welding between two Pin steel arch-shelfs so that steel arch-shelf becomes stable entirety, prevents steel arch-shelf unstable failure.
The plank of suitable size is filled in space between two Pin steel arch-shelfs, and a lining and two lining energy can be caused after two lining constructions
Enough to be closely combined together, common stress makes tunnel in stress advantageously.
Between at regular intervals after prefabricated reinforced concrete segment is installed again can play itself certain bearing capacity of tunnel,
Reduce the stress of tunnel double-lining, increase the safety stock in tunnel.Prefabricated reinforced concrete segment also can preferably guarantee two linings
Quality；The supporting that loess tunnel is completed under anhydrous environment can avoid loess from meeting water generation settlement by soaking and dilatancy etc.
Harm.
Description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present invention；
Fig. 2 is vertical structure schematic diagram of the present invention；
Wherein 1. planks one, 2. steel arch-shelf, 3. prefabricated reinforced concrete segment, the wood 4. filled between liang Pin steel arch-shelfs
Plate two.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.
It is a kind of supporting construction of collapsible loess tunnel as depicted in figs. 1 and 2, including：The wood adopted by tunnel support
Plate 1, the steel arch-shelf 2 adopted by tunnel support, the wood filled between prefabricated reinforced concrete segment 3 and two Pin steel arch-shelfs
Plate 24.
Tunnel support is divided into two numbers support, and (near the hole wall) of the inside is referred to as a lining, and referred to as the two of outside serves as a contrast, based on a lining
The primary structure member wanted, two linings also take on power, and two linings are mainly as safety stock.
Plank 1 and the composition of steel arch-shelf 2 one are served as a contrast, and plank 1 surrounds tunnel one week, prevents the tunnel surface soil body from coming off, shape
Into Load -carring arch, but the low intensity of plank 1, need steel arch-shelf 2 to provide enough supporting drags, steel arch-shelf 2 be spaced be for
Saving cost, fills plank 24 and causes a lining to become a common entirety, be conducive to undertaking tunnel between steel arch-shelf 2
Confined pressure.Plank 1 is close to Tunnel wall for one week around tunnel, and steel arch-shelf 2 is close to plank 1, i.e. steel arch-shelf 2 and supports plank 1,
Plank 1 supports tunnel.Also around the one week filling plank 24 in tunnel between steel arch-shelf 2,2 table of 24 surface of plank and steel arch-shelf is made
Which is put down in face, and the plank 24 for being then close to steel arch-shelf 2 and filling again installs prefabricated concrete pipe sheet 3, prefabricated armored concrete
Section of jurisdiction 3 is two linings.
Prefabricated 3 direct one pieces of blocks of reinforced concrete segment are assembled into a complete similar oval structure, form one
Annular, it is assembled similar to shield machine segment.
It is embodied as being after the short drilling depth in tunnel is excavated to set up some planks 1 and steel arch-shelf 2 immediately, between plank 1
Be connected with nail, then between two Pin steel arch-shelfs 2 with several reinforcement weldings together, it is ensured that steel arch-shelf 2 is stablized, it is to avoid
Steel arch-shelf unstability, then between two Pin steel arch-shelfs 2 fill plank 24 so that plank 1 and steel arch-shelf 2 collectively constitute one
It is overall, at regular intervals after prefabricated reinforced concrete segment 3 is installed again, complete loess tunnel under anhydrous environment
Supporting.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
The various modifications made by needing to pay creative work or deformation are still within protection scope of the present invention.
Claims (3)
1. a kind of method for protecting support of loess tunnel, is characterized in that, the suspension device adopted by the method for protecting support of the loess tunnel
Including：Some planks one and steel arch-shelf for tunnel support, prefabricated reinforced concrete segment and it is filled in two Pin steel arches
Plank two between frame；The plank one is arranged on the outermost layer of suspension device, is close to Tunnel wall and surrounds tunnel one week, shape
Into Load -carring arch；In some steel arch-shelfs of internal layer interval setting of the plank one, the steel arch-shelf is close to one setting of plank；Adjacent
Plank two, the plank two and steel arch-shelf flush are filled between two Pin steel arch-shelfs；The prefabricated reinforced concrete segment
It is close to the internal layer of steel arch-shelf and plank two, is arranged on the innermost layer of suspension device；
The method for protecting support of the loess tunnel, including：After tunnel excavation is complete, it is close to Tunnel ledge and sets some for tunnel
The plank one of shield, is fixedly connected between the plank one, forms Load -carring arch；It is close to one internal layer of plank interval and sets up some steel arches
Frame, is fixed with reinforcement welding between adjacent two Pin steel arch-shelfs, and the wood of suitable size is filled in the space between adjacent two Pin steel arch-shelfs
Plate two, plank two and steel arch-shelf flush；Prefabricated reinforced concrete segment is installed after the setting time of interval, in anhydrous ring
The supporting of loess tunnel is completed under border.
2. a kind of method for protecting support of loess tunnel as claimed in claim 1, is characterized in that, use steel between the two Pin steel arch-shelfs
Muscle is welded and fixed.
3. a kind of method for protecting support of loess tunnel as claimed in claim 1, is characterized in that, be fixedly connected between the plank one
So that plank forms a Load -carring arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811037.2A CN104612708B (en) | 2014-12-22 | 2014-12-22 | A kind of suspension device and method for protecting support of loess tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811037.2A CN104612708B (en) | 2014-12-22 | 2014-12-22 | A kind of suspension device and method for protecting support of loess tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612708A CN104612708A (en) | 2015-05-13 |
| CN104612708B true CN104612708B (en) | 2017-04-05 |
Family
ID=53147333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410811037.2A Expired - Fee Related CN104612708B (en) | 2014-12-22 | 2014-12-22 | A kind of suspension device and method for protecting support of loess tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612708B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484763B (en) * | 2015-12-03 | 2018-05-25 | 中国矿业大学(北京) | A kind of semiclosed reinforced concrete segment method for protecting support of deep coalmine |
| CN105781574B (en) * | 2016-04-19 | 2017-06-16 | 长安大学 | A kind of tunnel assembled support system and its construction method |
| CN106089239A (en) * | 2016-08-05 | 2016-11-09 | 陕西省建筑科学研究院 | A kind of wood centering of Stabilization of Loess cave dwelling |
| CN107725068A (en) * | 2017-11-06 | 2018-02-23 | 山东建筑大学 | A kind of assembled supporting construction and its construction method based on outside steel arch-shelf and inner side concrete slab |
| CN108442950B (en) * | 2018-03-09 | 2020-01-07 | 中国矿业大学(北京) | In-situ reinforcement method for U-shaped steel bracket |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737063B (en) * | 2009-11-16 | 2011-12-14 | 西安理工大学 | Ground fissure tunnel asphalt concrete composite lining and supporting method thereof |
| CN202247907U (en) * | 2011-10-21 | 2012-05-30 | 中冶建工集团有限公司 | Supporting structure of urban track traffic super-large section cut-and-cover section tunnel |
| CN104047610B (en) * | 2014-05-30 | 2017-06-16 | 甘肃省交通规划勘察设计院有限责任公司 | Composite lining structure |
| CN204591298U (en) * | 2014-12-22 | 2015-08-26 | 山东大学 | A kind of suspension device of loess tunnel |
-
2014
- 2014-12-22 CN CN201410811037.2A patent/CN104612708B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104612708A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612708B (en) | A kind of suspension device and method for protecting support of loess tunnel | |
| CN205895312U (en) | Be used for rich irrigated land section tunnel water handling system | |
| WO2016095631A1 (en) | Support structure for tunnel having ultra-large variable section | |
| CN205206838U (en) | Collapsible loess tunnel supporting construction | |
| CN104389628B (en) | Landslide location tunnel reinforcement device and reinforced construction method | |
| CN104563131B (en) | Rectangular enclosure pile, and construction method using rectangular enclosure pile as main structure | |
| CN204024678U (en) | A kind of tunnel support equipment | |
| CN103088830A (en) | Construction method for composite outer wall structure of ultra-deep basement | |
| CN205503151U (en) | Be applied to deep tunnel drainage engineering's underground structure | |
| CN109209443A (en) | A kind of construction method of breaking surrounding rock tunnel structure | |
| CN106567393A (en) | Collapsible loess deep foundation pit support construction method | |
| CN205558295U (en) | Concrete hopper | |
| CN103939115B (en) | A kind of method of half shallow mining method hangar tunnel and structure | |
| CN204002836U (en) | The high-strength yield supporting structure of heavily stressed broken soft rock chamber | |
| CN103939104B (en) | Colliery dark vertical disturbance rejection ingate structure | |
| CN110273700A (en) | It is a kind of to control red shale tunnel strength bolt-grouting support structure and its construction method | |
| CN104074183A (en) | Drilling and concrete injected root composite pile implanting pile structure and construction method | |
| CN105065032B (en) | Suitable for the large cross-section tunnel support system construction method of steep dip stratified rock masses | |
| CN205604242U (en) | Be applied to self -drilling stock of personally experiencing sth. part of body that expands of weak soil | |
| CN204591298U (en) | A kind of suspension device of loess tunnel | |
| CN204783020U (en) | Shallow undercut tunnel construction equipment that buries of large -span | |
| CN110159276A (en) | Tunnel excavation technique in a kind of disintegration in water ultimate soft rock stratum | |
| CN215629929U (en) | Novel site operation structure of anti-floating anchor rod | |
| CN104695980B (en) | For the regional Lining of Power Tunnel structure of high buried depth, High-geotemperature, high stress rock burst | |
| CN203809010U (en) | Cavern stability improving structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20171222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |