CN106522979A - Anti-sinking non-pressure tunnel structure in collapsible loess - Google Patents
Anti-sinking non-pressure tunnel structure in collapsible loess Download PDFInfo
- Publication number
- CN106522979A CN106522979A CN201611030236.5A CN201611030236A CN106522979A CN 106522979 A CN106522979 A CN 106522979A CN 201611030236 A CN201611030236 A CN 201611030236A CN 106522979 A CN106522979 A CN 106522979A
- Authority
- CN
- China
- Prior art keywords
- secondary lining
- tunnel
- foundation pile
- preliminary bracing
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
-
- 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
Provided is an anti-sinking non-pressure tunnel structure in collapsible loess. The anti-sinking non-pressure tunnel structure comprises a tunnel, and a primary support and a secondary lining are sequentially arranged on the inner surface of the tunnel from outside to inside. The secondary lining comprises an arch ring, a side wall and an inverted arch. A light buffer layer is arranged between the secondary lining and the primary support and corresponds to the side wall and the arch ring, foundation piles are distributed on the lower surface of the inverted arch, the upper ends of the foundation piles are fixedly connected with the inverted arch, and the lower ends of the foundation piles penetrate through the primary support to be fixed into a stable stratum below the primary support. The secondary lining and the primary support are separated, the primary support can settle along with settling of the stratum, and the secondary lining is kept stable relatively; the light buffer layer is arranged between the primary support and the secondary lining, so that the shock resistance and impact resistance effects of the tunnel structure are obviously improved; the stress on the secondary lining is small, the consumption of reinforced concrete can be reduced, and the manufacturing cost of the tunnel is saved; and stress on the secondary lining of the tunnel is more reasonable, the emergency capacity is improved, and the headroom and line type in the tunnel are fully guaranteed.
Description
Technical field
The present invention relates to tunnel field, and in particular to anti-the sinking of collapsible loess exempts to press tunnel structure.
Background technology
In collapsible loess stratum, when stratum is settled due to Loess Collapsibility, the tunnel structure being embedded in stratum will
Sedimentation is produced therewith, headroom and circuit line style will be severely impacted in tunnel, be that this is more in the setting of inverted arch bottom in the design
Pile foundation maintaining the relatively stable of tunnel structure, so as to ensure stablizing for circuit.And conventional composite formula tunnel structure two serve as a contrast with just
Phase supporting is closely connected, both common eigenvectors, common stress, and when bottom arranges pile foundation to keep relative stability, two linings will be held with just propping up
By overlying earth pillar load and additional passive earth pressure, when buried depth is deeper, structure is difficult to bear and produce destruction, or cost
It is very high, it is unreasonable in design.
The content of the invention
The present invention is directed to the deficiencies in the prior art, proposes that anti-the sinking of collapsible loess exempts to press tunnel structure, concrete technical scheme
It is as follows：
A kind of anti-the sinking of collapsible loess exempts to press tunnel structure, including tunnel, and on the inner surface of tunnel, ecto-entad is set successively
Preliminary bracing (1) and secondary lining (3) are equipped with, which it is critical only that：The secondary lining (3) is including arch ring (3-1), abutment wall (3-
2) with inverted arch (3-3), set between the abutment wall (3-2) and the corresponding secondary lining (3) of arch ring (3-1) and preliminary bracing (1)
Lightweight cushion (2) is equipped with, foundation pile (4), the foundation pile (4) upper end and the inverted arch is distributed with the inverted arch (3-3) lower surface
(3-3) it is fixedly connected, lower end is fixed in the good ground below the preliminary bracing (1) through the preliminary bracing (1).
What the present invention was realized in：The secondary lining of the present invention is separated with preliminary bracing, under the inverted arch of secondary lining
Arrange support secondary lining foundation pile, in the good ground that foundation pile is fixed on below preliminary bracing through preliminary bracing, foundation pile and
Preliminary bracing contact portion is isolated, and makes both not produce phase mutual friction, and such preliminary bracing is being sunk by passive earth pressure
Or during deformation, the secondary lining of tunnel internal sinks and indeformable in the support of foundation pile, so that tunnel road surface and linear
Keep stable；Lightweight cushion is set between secondary lining and preliminary bracing, on the one hand makes secondary lining propose preliminary bracing
For certain supporting role, preliminary bracing is on the other hand made to provide certain effect of contraction to secondary lining, so as to improve overall structure
Antidetonation and impact resistance.
To better implement the present invention, may further be：
The foundation pile (4) is provided with steel pipe dado, is reinforced concrete structure in the steel pipe dado；On the foundation pile (4)
End is provided with pile crown (8) connection integrated with the inverted arch (3-3)；Preliminary bracing (1) bottom is offered for wearing
The hole of the foundation pile (4), is provided with steel ring (5), the steel ring (5) and the interior steel laid of the preliminary bracing (1) on the hole inwall
Bow member (7) is fixedly connected；Sliding material is filled between the steel ring (5) and the foundation pile (4), so, steel pipe dado makes base
Stake is firmer, and the pile crown that foundation pile top is arranged expands the area of foundation pile connection integrated with secondary lining, makes secondary lining more steady
Surely be connected on foundation pile, the part that contacts with foundation pile in supporting in the early stage in addition arranges steel ring, for isolate preliminary bracing and
Foundation pile, and sliding material is filled with therebetween, while reducing both frictions, also protect preliminary bracing not damaged by foundation pile
It is bad；
The lightweight cushion (2) is table tennis concrete layer, and the table tennis concrete layer is in crescent, meniscate institute
State that table tennis concrete layer is symmetrical with regard to the tunnel center line, adapt to the sedimentation of tunnel structure, meeting tunnel subsidence pressure-bearing will
Ask；
The sliding material is sand gravel (6), and sand gravel has mobility, reduces preliminary bracing and base slip effect is played
Between stake while frictional force, moreover it is possible to improve the antidetonation and impact resistance of foundation pile.
Beneficial effects of the present invention are：Secondary lining independent stress after separating with preliminary bracing, and arrange therebetween
There is lightweight cushion, make the shock resistance and anti-impact force performance of this structure be significantly improved, and secondary lining stress
It is less, armored concrete consumption can be reduced, the manufacturing cost in tunnel is saved；Tunnel Second Lining is not subject to larger overlying earth pillar
Pressure, stress are less, can increase safety stock and fortification measure, and in tunnel, headroom and line style can be fully ensured that, tunnel knot
Structure will not be affected by the change of surrounding formation condition；Secondary lining is supported using foundation pile, makes to present invention can be suitably applied to ground
Tunnel structure in base weakness and the big various unfavorable geological conditions of posterior settlement amount.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Structural representations of the Fig. 2 for secondary lining；
Fig. 3 is the schematic enlarged-scale view of foundation pile and secondary lining coupling part；
Fig. 4 is the schematic enlarged-scale view of preliminary bracing and foundation pile contact portion.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent clearly defines so as to make to protection scope of the present invention.
As shown in Figures 1 to 4：A kind of anti-the sinking of collapsible loess exempts to press tunnel structure, including tunnel, on the inner surface of tunnel
Ecto-entad is disposed with preliminary bracing 1 and secondary lining 3, and secondary lining 3 includes arch ring 3-1, abutment wall 3-2 and inverted arch 3-3,
Lightweight cushion 2 is provided between the corresponding secondary linings 3 of abutment wall 3-2 and arch ring 3-1 and preliminary bracing 1, under inverted arch 3-3
Surface distributed has foundation pile 4, and 4 upper end of foundation pile is fixedly connected with inverted arch 3-3, and lower end is fixed under preliminary bracing 1 through preliminary bracing 1
In the good ground of side；
Foundation pile 4 is provided with steel pipe dado, is reinforced concrete structure in steel pipe dado；4 upper end of foundation pile is provided with pile crown 8 simultaneously
Connection integrated with inverted arch 3-3；
1 bottom of preliminary bracing is offered for wearing the hole of foundation pile 4, and steel ring 5, steel ring 5 and initial stage are provided with the inwall of hole
In supporting 1, the steel arch-shelf 7 of laying is fixedly connected；Sliding material is filled between steel ring 5 and foundation pile 4, this sliding material is gravel
Stone 6；
Lightweight cushion 2 be table tennis concrete layer, table tennis concrete layer be in crescent, meniscate table tennis coagulation
Soil layer is symmetrical with regard to the center line in the tunnel.
During construction：The appropriate arch wall end face for expanding preliminary bracing 1 is excavated, and then applies preliminary bracing 1；Supporting 1 in the early stage
The hole position that bottom designs in advance is opened up for wearing the hole of foundation pile 4, is fixed with the steel arch-shelf 7 of cut-out in tapping steel ring 5
Connection, it is ensured that the integrality of steel arch-shelf 7, wears steel pipe dado in hole, wherein, the bottom of steel pipe dado is fixed on stably
The part of layer, steel pipe dado and the contact of preliminary bracing 1 sets steel form isolation, then irrigates reinforced concrete in the steel pipe dado
Soil；Steel form is taken out before applying secondary lining 3, sand gravel 6 is filled between foundation pile 4 and preliminary bracing 1, external mold is then set and is applied
Secondary lining 3, secondary lining 3 and foundation pile 4 just connect；With the moon between table tennis Concrete Filled preliminary bracing 1 and secondary lining 3
Thread form space.
Claims (4)
1. a kind of anti-the sinking of collapsible loess exempts to press tunnel structure, including tunnel, and on the inner surface of tunnel, ecto-entad sets gradually
There are preliminary bracing (1) and secondary lining (3), it is characterised in that：The secondary lining (3) includes arch ring (3-1), abutment wall (3-2)
With inverted arch (3-3), arrange between the abutment wall (3-2) and the corresponding secondary lining (3) of arch ring (3-1) and preliminary bracing (1)
There is lightweight cushion (2), foundation pile (4), the foundation pile (4) upper end and the inverted arch (3- is distributed with the inverted arch (3-3) lower surface
3) it is fixedly connected, lower end is fixed in the good ground below the preliminary bracing (1) through the preliminary bracing (1).
2. anti-the sinking of collapsible loess exempts to press tunnel structure according to claim 1, it is characterised in that：The foundation pile (4) is provided with
Steel pipe dado, is reinforced concrete structure in the steel pipe dado；Foundation pile (4) upper end be provided with pile crown (8) and with it is described
Inverted arch (3-3) integration connection；
Preliminary bracing (1) bottom is offered for wearing the hole of the foundation pile (4), and steel ring (5) is provided with the hole inwall,
The steel ring (5) is fixedly connected with the steel arch-shelf (7) of laying in the preliminary bracing (1)；The steel ring (5) and the foundation pile (4)
Between be filled with sliding material.
3. anti-the sinking of collapsible loess exempts to press tunnel structure according to claim 1, it is characterised in that：The lightweight cushion
(2) it is table tennis concrete layer, the table tennis concrete layer is in crescent, and the meniscate table tennis concrete layer is with regard to institute
State tunnel center line symmetrical.
4. anti-the sinking of collapsible loess exempts to press tunnel structure according to claim 2, it is characterised in that：The sliding material is sand
Gravel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030236.5A CN106522979A (en) | 2016-11-15 | 2016-11-15 | Anti-sinking non-pressure tunnel structure in collapsible loess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030236.5A CN106522979A (en) | 2016-11-15 | 2016-11-15 | Anti-sinking non-pressure tunnel structure in collapsible loess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106522979A true CN106522979A (en) | 2017-03-22 |
Family
ID=58352870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611030236.5A Pending CN106522979A (en) | 2016-11-15 | 2016-11-15 | Anti-sinking non-pressure tunnel structure in collapsible loess |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522979A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842372A (en) * | 2017-11-22 | 2018-03-27 | 浙江海洋大学 | A kind of tunnel structure of high-strength anti-seismic |
| CN110005444A (en) * | 2019-05-05 | 2019-07-12 | 西南交通大学 | Highly seismic region method for tunnel construction and tunnel support structure |
| CN110159314A (en) * | 2019-05-07 | 2019-08-23 | 山东大学 | A kind of tunnel flexibility ring type support system suitable for passing through active breaking belt |
| CN110645016A (en) * | 2019-06-27 | 2020-01-03 | 国网浙江省电力有限公司经济技术研究院 | Pipe jacking tunnel position accurate adjustment device and method based on adjustable grouting container |
| CN114320345A (en) * | 2022-01-04 | 2022-04-12 | 甘肃二车高等级公路项目管理有限公司 | Inverted arch prefabricated assembly structure suitable for loess highway tunnel and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562091A (en) * | 2012-01-30 | 2012-07-11 | 中铁七局集团有限公司 | Foam concrete shock absorbing structure of tunnel and construction method of foam concrete shock absorbing structure |
| CN203515597U (en) * | 2013-10-18 | 2014-04-02 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel structure applicable to soft stratum |
| CN203547760U (en) * | 2013-10-23 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Base weak stratum channel bent wall belt flat base inverted arch lining structure |
| CN205225280U (en) * | 2015-11-11 | 2016-05-11 | 中铁二院工程集团有限责任公司 | A combined supporting structure that is used for steel -pipe pile bar planting tunnel composite lining of soft base |
-
2016
- 2016-11-15 CN CN201611030236.5A patent/CN106522979A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562091A (en) * | 2012-01-30 | 2012-07-11 | 中铁七局集团有限公司 | Foam concrete shock absorbing structure of tunnel and construction method of foam concrete shock absorbing structure |
| CN203515597U (en) * | 2013-10-18 | 2014-04-02 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel structure applicable to soft stratum |
| CN203547760U (en) * | 2013-10-23 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Base weak stratum channel bent wall belt flat base inverted arch lining structure |
| CN205225280U (en) * | 2015-11-11 | 2016-05-11 | 中铁二院工程集团有限责任公司 | A combined supporting structure that is used for steel -pipe pile bar planting tunnel composite lining of soft base |
Non-Patent Citations (1)
| Title |
|---|
| 郑智雄: "高地应力软岩隧道泡沬混凝土卸压机理分析", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842372A (en) * | 2017-11-22 | 2018-03-27 | 浙江海洋大学 | A kind of tunnel structure of high-strength anti-seismic |
| CN110005444A (en) * | 2019-05-05 | 2019-07-12 | 西南交通大学 | Highly seismic region method for tunnel construction and tunnel support structure |
| CN110159314A (en) * | 2019-05-07 | 2019-08-23 | 山东大学 | A kind of tunnel flexibility ring type support system suitable for passing through active breaking belt |
| CN110159314B (en) * | 2019-05-07 | 2020-08-25 | 山东大学 | Tunnel flexible ring type supporting system suitable for penetrating through movable fracture zone |
| CN110645016A (en) * | 2019-06-27 | 2020-01-03 | 国网浙江省电力有限公司经济技术研究院 | Pipe jacking tunnel position accurate adjustment device and method based on adjustable grouting container |
| CN110645016B (en) * | 2019-06-27 | 2021-06-29 | 国网浙江省电力有限公司经济技术研究院 | Pipe jacking tunnel position accurate adjustment device and method based on adjustable grouting container |
| CN114320345A (en) * | 2022-01-04 | 2022-04-12 | 甘肃二车高等级公路项目管理有限公司 | Inverted arch prefabricated assembly structure suitable for loess highway tunnel and construction method |
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| PB01 | Publication | ||
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Application publication date: 20170322 |