CN204457796U - A kind of have the tunnel lining structure never removing lining cutting tire - Google Patents
A kind of have the tunnel lining structure never removing lining cutting tire Download PDFInfo
- Publication number
- CN204457796U CN204457796U CN201520131546.0U CN201520131546U CN204457796U CN 204457796 U CN204457796 U CN 204457796U CN 201520131546 U CN201520131546 U CN 201520131546U CN 204457796 U CN204457796 U CN 204457796U
- Authority
- CN
- China
- Prior art keywords
- lining cutting
- shelf
- tire
- steel arch
- cutting tire
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
There is the tunnel lining structure never removing lining cutting tire, be specifically related to a kind of lining cutting device be forever arranged between tunnel surrounding and steel arch-shelf.The utility model main body is lining cutting tire and steel arch-shelf, pass through numerical simulation, determine lining cutting tire installation location, and tire shape, the pressure uniform utilizing the suppleness of air and rubber that surrouding rock deformation is produced pass to steel arch-shelf, greatly reduce the requirement of sectional shape area and intensity, make full use of the utilization rate of steel arch-shelf, at utmost avoid steel arch-shelf local failure, high degree saves construction cost, ensure that country rock gives full play to self support capacity, prevent country rock local failure, improve safety.
Description
Technical field
The utility model relates to the device field of construction of tunnel, is specifically related to a kind of tunnel lining structure with never dismounting lining cutting tire.
Background technology
Now, along with the progress of construction technology, steel arch-shelf mounting technique is gradually improved, but tunnel soft rock and dilatancy soil layer problem annoying construction of tunnel always.After tunnel excavation, country rock can produce creep or Rheological Deformation after tunnel excavation, extruding rigid arch frame, and steel arch-shelf very easily deforms and unstability; Country rock inhomogeneous deformation (as Fig. 9-Figure 10) produces different pressures to steel arch-shelf different parts, make the different parts of steel arch-shelf can bear disalignment power, moment of flexure, the maximum value of axle power and moment of flexure can reach 20 times of minimum value, and the steel arch-shelf of prismatic design is as easy as rolling off a log causes waste of material; Too early installation steel arch-shelf then makes steel arch-shelf bear deformational pressure of surrounding rock too early, thus causes steelframe intensity to need to improve, and after installing steel arch-shelf late, the supporting at noon of surrouding rock deformation process, easily block breakoff phenomenon occurs.Device as described in the patent " the lining cutting tire between tunnel and steel arch-shelf " of applying for before, be that one can make surrouding rock deformation and steel arch-shelf internal force does not increase, and there is supporting power all the time in country rock, can not there is local failure in country rock, can ensure again that steel arch-shelf can not produce very large internal stress when destroying simultaneously.But this device can not forever be embedded in tunnel, can not really play the effect making steel arch-shelf bear pressure equalization, and there is the trouble of removing tire or removing steel arch-shelf.
Summary of the invention
The purpose of this utility model is to provide a kind of tunnel lining structure with never dismounting lining cutting tire, it makes the shaped steel utilization rate of steel arch-shelf greatly improve, and saves the use of shaped steel, cost-saving, also can prevent the unexpected unstability of country rock simultaneously, prevent steel arch-shelf from bearing greater impact power.
A kind of have the tunnel lining structure never removing lining cutting tire, a kind of have the tunnel lining structure never removing lining cutting tire, it comprises steel arch-shelf, lining cutting tire is provided with between steel arch-shelf and country rock, air is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, and let out a year bottom of device and be provided with transfer port, steel arch-shelf and lining cutting tire are fixed on country rock by the anchor pole on steel strand and country rock.
Described lining cutting tire individual layer section 5cm-15cm, wherein outside adopts the special TSR5 rubber layer of tire, thickness is 0.5cm-3cm, SCR10#C type rubber layer is adopted inside tire, its thickness is 8cm-10cm, have in the middle of lining cutting tire diameter to be the aperture space of 10cm ~ 30cm, the aperture space of described 10cm-30cm is close to 80% of Tunnel Displacement amount.
Between described steel arch-shelf and soft rock, spacing is at 20cm-50cm, and lining cutting tire gives country rock 10cm-30cm Free Transform space.
Described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, the device that described transfer port is exhaust, gas transmission is integrated.
Described anchor pole departs from steel arch-shelf side, distance steel bow member side 5cm, and one end that anchor pole exposes rock mass outside adopts hook type structure, and steel strand are linked closely by prestressed anchor.
The utility model has following beneficial effect: the utility model country rock is under certain supporting condition of tire, Free Transform (the aperture space that 10cm-30cm distance is of caused 10cm-30cm can be exhausted, it excessively will cause initial value stability and bubble-tight harmful effect close to 80% of Tunnel Displacement amount), in this exhaust process, tire can automatic deflation, and any effect can not be applied to steel arch-shelf in this course, give full play to self support capacity of country rock, prevent progressive destruction, avoid the steel arch-shelf of too early installation high strength.Adopt the larger position of the measurable tunnel deformation of numerical simulation, emphasis displacement discharges large position, and specific aim uses tire, the position that all the other displacements are little, can support by remaining portions rock mass.Tire can permanent placement in tunnel, and rubber is sealed in concrete completely, greatly can improve the ageing resistace of rubber tyre, and make rubber tyre transmit pressure from surrounding rock, the time that this function maintaining steel arch-shelf uniform force is improves greatly.Lining cutting tire can present with difformity, meets various tunnel-shaped requirement, is not only applicable to tunneling boring constructing tunnel, also meets the partial excavation method in tunnel.Rubber suppleness is high, fully makes country rock pass to the power homogenising of steel arch-shelf, avoids steel arch-shelf local to bear larger pressure, thus reduces steel arch-shelf cross-sectional area widely, saving steel.Every Pin installs lining cutting tire steel bow member and compares with the steel arch-shelf not installing lining cutting tire, greatly reduces shaped steel intensity and the sectional shape area of steel arch-shelf needs, every Pin steel arch-shelf cost-saved more than 10%.The threshold value of outlet valve is adjustable, and the diameter in the described tyre inflating space designed according to Tunnel Displacement amount, when top off, lining cutting tire can bear force value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is that front tunnel schematic diagram installed by lining cutting tire;
Fig. 2 is that lining cutting tire body installs tunnel schematic diagram;
Fig. 3 is lining cutting tire section schematic diagram;
Fig. 4 is that constructing tunnel completes schematic diagram;
Fig. 5 is steel arch-shelf, lining cutting tire, anchor pole, tunnel cross-section schematic diagram;
Fig. 6 is ground tackle detail drawing and steel strand connection diagram;
Fig. 7 is that lining cutting tire construction figure a is installed in local, tunnel;
Fig. 8 is that lining cutting tire construction figure b is installed in local, tunnel;
Fig. 9 is certain gateway opening type excavated section displacement vector figure;
Figure 10 is certain gateway opening type tunnel steel arch frame force diagram;
Figure 11 is power transmission force diagram a after certain gateway opening type tunnel installation lining cutting tire;
Figure 12 is power transmission force diagram b after certain gateway opening type tunnel installation lining cutting tire.
Detailed description of the invention
As in Fig. 1-12, a kind of have the tunnel lining structure never removing lining cutting tire, it comprises steel arch-shelf 7, lining cutting tire 3 is provided with between steel arch-shelf and country rock 1, air 2 is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, let out a year bottom of device and be provided with transfer port 4, steel arch-shelf and lining cutting tire are fixed on country rock by the anchor pole 6 on steel strand 8 and country rock, described lining cutting tire individual layer section 10cm, wherein outside adopts the special TSR5 rubber layer 11 of tire, thickness is 1cm, SCR10#C type rubber layer 12 is adopted inside tire, its thickness is 8cm-10cm, diameter is had in the middle of lining cutting tire to be the aperture space of 10cm-30cm, the aperture space of described 10cm-30cm is close to 80% of Tunnel Displacement amount, between described steel arch-shelf and soft rock, spacing is at 20cm-50cm, lining cutting tire gives country rock 10cm-30cm Free Transform space, described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, be convenient to remove, described transfer port is exhaust, the device that gas transmission is integrated, when gas pressure intensity in tire reach pressure that gas in tire can bear be greater than 30% of minimal support power minimum value required for country rock time, preferably, time in tire, gas pressure intensity reaches 3Mpa-8Mpa, then transfer port valve will by jack-up, gas is discharged, when pressure is less than this value, valve closing, do not discharge gas, described anchor pole departs from steel arch-shelf side, distance steel bow member side 5cm, one end that anchor pole exposes rock mass outside adopts hook type structure, steel strand are linked closely by prestressed anchor 5.Adopt the larger position of numerical Simulation Prediction tunnel deformation, emphasis displacement discharges large position, and specific aim uses lining cutting tire, the position that all the other displacements are little, remaining portions rock mass supports, and described lining cutting tire shape is according to tunnel surrounding stressing conditions and tunnel-shaped design.
This structure construction step is as follows:
1) according to actual demands of engineering, take different modes tunneling, tunnel excavation completes, the concrete that first just spray about 30mm is thick on country rock wall, and then plug anchor pole 6, install steel mesh reinforcement 9, reinforcing bar grid 10 all covers by jetting cement;
2) air is filled with lining cutting tire from transfer port, in gas transmission process by tire dolly in tunnel, make to be close to country rock outside tire;
3) steel arch-shelf is installed, and with steel strand, steel arch-shelf and anchor pole is coupled together, and surround tire;
4) one served as a contrast after, Tunnel Surrounding Rock Pressure finally passes to steel arch-shelf, and steel arch-shelf is stressed changes uniform stressed into by the past uneven stressed;
5) tire and steel arch-shelf installation are after that is a lining completes, diameter is had to be about the gas column of 10cm-30cm in lining cutting tire, tunnel surrounding will can produce distortion always, country rock is applied to pressure on tire, gas pressure intensity is increased to 3Mpa-8Mpa, gas discharges immediately, next has the following two kinds situation:
Claims (5)
1. one kind has the tunnel lining structure never removing lining cutting tire, it comprises steel arch-shelf (7), it is characterized in that, lining cutting tire (3) is provided with between steel arch-shelf and country rock (1), air (2) is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, lets out a year bottom of device and is provided with transfer port (4), and steel arch-shelf and lining cutting tire are fixed on country rock by the anchor pole (6) on steel strand (8) and country rock.
2. according to claim 1 have the tunnel lining structure never removing lining cutting tire, it is characterized in that: described lining cutting tire individual layer section 5cm-15cm, wherein outside adopts the special TSR5 rubber layer (11) of tire, thickness is 0.5cm-3cm, SCR10#C type rubber layer (12) is adopted inside tire, its thickness is 8cm-10cm, and have in the middle of lining cutting tire diameter to be the aperture space of 10cm ~ 30cm, the aperture space of described 10cm-30cm is close to 80% of Tunnel Displacement amount.
3. according to claim 1 have the tunnel lining structure never removing lining cutting tire, and it is characterized in that: between described steel arch-shelf and soft rock, spacing is at 20cm-50cm, lining cutting tire gives country rock 10cm-30cm Free Transform space.
4. according to claim 1 have the tunnel lining structure never removing lining cutting tire, it is characterized in that: described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, the device that described transfer port is exhaust, gas transmission is integrated.
5. according to claim 1 have the tunnel lining structure never removing lining cutting tire, it is characterized in that: described anchor pole departs from steel arch-shelf side, distance steel bow member side 5cm, one end that anchor pole exposes rock mass outside adopts hook type structure, and steel strand are linked closely by prestressed anchor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131546.0U CN204457796U (en) | 2015-03-09 | 2015-03-09 | A kind of have the tunnel lining structure never removing lining cutting tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131546.0U CN204457796U (en) | 2015-03-09 | 2015-03-09 | A kind of have the tunnel lining structure never removing lining cutting tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457796U true CN204457796U (en) | 2015-07-08 |
Family
ID=53664698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520131546.0U Expired - Fee Related CN204457796U (en) | 2015-03-09 | 2015-03-09 | A kind of have the tunnel lining structure never removing lining cutting tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832186A (en) * | 2015-03-09 | 2015-08-12 | 三峡大学 | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure |
-
2015
- 2015-03-09 CN CN201520131546.0U patent/CN204457796U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832186A (en) * | 2015-03-09 | 2015-08-12 | 三峡大学 | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure |
| CN104832186B (en) * | 2015-03-09 | 2017-04-19 | 三峡大学 | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104727829A (en) | Tunnel lining structure with detachable lining tire and construction installation method thereof | |
| CN105696599B (en) | A kind of grouting under pressure method by using air bag plugging device | |
| CN104832186A (en) | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure | |
| CN203296780U (en) | Supporting and protecting lining device used for preventing surrounding rock from large deformation in underground cavern construction | |
| CN203742623U (en) | Water-pressure-resistant composite structure for tunnel | |
| CN105003299B (en) | A kind of gob side entry retaining flexible filling bag and its application method | |
| CN204267064U (en) | Embedded classification constant-resistance shearing resistance large deformation anchor device | |
| CN204456100U (en) | A kind of part adhesive type prestress anchorage cable with outer anchoring section | |
| CN103352582B (en) | The method of inner prestressed reinforcement bolt anchorage Concrete Hollow Block Masonry Structures | |
| CN204457796U (en) | A kind of have the tunnel lining structure never removing lining cutting tire | |
| CN106988780A (en) | A kind of girdle goaf paste body filling construction method | |
| CN108677944A (en) | Partition-type high pressure plug-hole grouted anchor bar and its grouting method | |
| CN207297041U (en) | A kind of changeable type inflatable waterstop for Tunneling by mining method | |
| CN108868786A (en) | A kind of novel steel bushing of shield closed origin reception | |
| CN106760021A (en) | A kind of articulated elements for being applied to antidetonation suspension and support | |
| CN204532366U (en) | A kind of tunnel lining structure with detachable lining cutting tire | |
| CN106368717B (en) | A kind of tunnel anti-collapse supporting construction | |
| CN203066088U (en) | Mountain slope protection structure | |
| CN103498685A (en) | Retaining and protecting device for pressure relief windows of base plate and two edges of extremely soft rock roadway | |
| CN209129621U (en) | Intelligent prestressed concrete liner tunnel | |
| CN106285779A (en) | Underground coal mine environment-friendly type inflated type fire dam | |
| CN203247576U (en) | Slide-resistant pile | |
| CN204898618U (en) | Hydraulic pressure lift dam | |
| CN104453912A (en) | Vertical reducible joint of freezing shaft wall | |
| CN207760722U (en) | A kind of bridge expanssion joint bottom liner structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170309 |