CN108150191A - A kind of tunnel bottom structure and its construction method - Google Patents
A kind of tunnel bottom structure and its construction method Download PDFInfo
- Publication number
- CN108150191A CN108150191A CN201810041516.9A CN201810041516A CN108150191A CN 108150191 A CN108150191 A CN 108150191A CN 201810041516 A CN201810041516 A CN 201810041516A CN 108150191 A CN108150191 A CN 108150191A
- Authority
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- China
- Prior art keywords
- floral tube
- steel floral
- concrete
- tunnel
- inverted arch
- Prior art date
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- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 38
- 239000011380 pervious concrete Substances 0.000 claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 9
- 230000010412 perfusion Effects 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 201000010099 disease Diseases 0.000 abstract description 22
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 22
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000019082 Osmanthus Nutrition 0.000 description 1
- 241000333181 Osmanthus Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- E21D11/04—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
- E21D11/04—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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
Abstract
A kind of tunnel bottom structure and its construction method the defects of to eliminate the easy disease in the region tunnel of underground water prosperity, improve the bearing capacity of tunnel structure bottom itself, while effectively reduce influence of the underground water to tunnel bottom structure.Tunnel bottom structure includes inverted arch and the lateral sulcus of both sides, armoured concrete slab is set between the both sides lateral sulcus, pervious concrete filling body is set between armoured concrete slab bottom surface and inverted arch surface, vertically and horizontally spaced steel floral tube is passed down through pervious concrete filling body and inverted arch is inserted into basement rock, and the upper end of each steel floral tube is fixedly connected with armoured concrete slab.The pervious concrete filling body bottom centre position sets gutter.
Description
Technical field
The present invention relates to tunnel structures, and in particular to a kind of tunnel bottom structure and its construction method.
Background technology
It is shown according to related data, the existing railway tunnel in China passes through the operation of many decades, particularly in underground water prosperity
In the case of, it is flourishing that situations such as cracking, percolating water, bottom disease, particularly underground water more generally occurs in supporting construction
Limestone and can lava stratum.It is entirely local to share 1995 by taking the tunnel investigation in Chengdu Railway Bureau administration in 2010 as an example
Seat tunnel, total kilometrage is up to 1397 kilometers, wherein there is 1418 tunnels disease occur, occur disease tunnel account for institute it is cunicular
71.08%.From the quantity of disease, 84.6% disease is Lining cracks and percolating water.Come from the quantity in disease tunnel
It sees, 70.5% disease is percolating water, pumping equipment damage and bottom are risen soil inside and outside hole.Even create into reaching soon
Into new line, 35% tunnel is also different degrees of to there is the situation of percolating water.The Guizhou Province particularly just built up and be open to traffic 1 year
Osmanthus line sinks and rises soil wherein there is 9 tunnels more serious bottom occur, seriously affected traffic safety.
It is tunnel structure bottom disease traffic safety to be influenced in disease maximum, and principal mode is that substrate is emptied, bursts and become muddy when a thaw sets in
Mud and track settlement etc. are emitted, the generation of these diseases is all related with underground water without exception.Simultaneously substrate scum silica frost do not clean up,
The intensity of inverted arch or bottom plate is insufficient or missing is often to cause the human factor of bottom disease.
Processing currently for tunnel structure bottom disease is all often by the way of grouting and reinforcing or clump of piles anchoring.
From the point of view of construction effect, slip casting effect is unsatisfactory, since underground water is flourishing and the problem of bottom structure itself, underground water is often
It cannot be completely exhausted out outside hole, and structure can also undertake certain water pressure, push wave can be played to bottom structure disease
Help the effect of billows.
Invention content
The technical problem to be solved in the present invention is to provide a kind of tunnel bottom structure, to eliminate the region tunnel of underground water prosperity
The defects of easy disease in road, improves the bearing capacity of tunnel structure bottom itself, while effectively reduces underground water to tunnel bottom knot
The influence of structure.
The present invention solves above-mentioned technical problem and uses the technical solution taken as follows：
A kind of tunnel bottom structure of the present invention, the lateral sulcus including inverted arch and both sides, it is characterized in that：The both sides lateral sulcus it
Between armoured concrete slab is set, between armoured concrete slab bottom surface and inverted arch surface set pervious concrete filling body, vertically and horizontally
Spaced steel floral tube is passed down through pervious concrete filling body and inverted arch is inserted into basement rock, the upper end of each steel floral tube and reinforcing bar
Concrete slab is fixedly connected；The pervious concrete filling body bottom centre position sets gutter.
Concrete perfusion in the steel floral tube.
Another technical problem to be solved by this invention is to provide a kind of construction method of above-mentioned tunnel bottom structure, the party
Method includes the following steps：
1. after the completion of tunnel excavation, construction inverted arch and both sides lateral sulcus, inverted arch are reserved for the through-hole that steel floral tube passes through；
2. it is laid with gutter waterway in inverted arch bottom centre position；
3. steel floral tube is passed through reserved through hole to be inserted into basement rock, concrete perfusion in each steel floral tube by steel floral tube of constructing；
4. after steel floral tube inner concrete reaches the 70% of design strength, pervious concrete filling body is poured；
5. by the top of steel floral tube and the reinforcement welding of armoured concrete slab, casting concrete is completed armoured concrete slab and is applied
Work.
The invention has the advantages that the steel floral tube of armoured concrete slab and internal casting concrete is as main carrying
Load can be efficiently transferred to the bearing bed of substrate by structure；Pervious concrete and gutter collective effect, by lateral sulcus cannot and
When the water discharged or the water of injection be discharged to outside tunnel, reduce soaking time and inverted arch of the underground water to tunnel bottom structure
The groundwater pressure that structure is subject to effectively reduces the probability that disease occurs；Present invention is mainly used for the tunnel bottoms of underground water prosperity
The design and Disease Treatment in lesion section easily occur for portion's structure, and can effectively reduce track due to disease and caused by irregularity ask
Topic.
Description of the drawings
Fig. 1 is a kind of cross-section diagram of tunnel bottom structure of the present invention.
Component name and corresponding label are shown in figure：Inverted arch 11, lateral sulcus 12, armoured concrete slab 20, permeable coagulation
Native filling body 21, steel floral tube 22, gutter 23.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
With reference to Fig. 1, present invention is mainly used for underground water prosperity tunnel bottom structure easily occur lesion section design and
Disease Treatment, tunnel bottom structure include inverted arch 11 and the lateral sulcus 12 of both sides.Reinforced concrete is set between the both sides lateral sulcus 12
Native plate 20, setting pervious concrete filling body 21 between 11 surface of 20 bottom surface of armoured concrete slab and inverted arch, vertically and horizontally interval set
The steel floral tube 22 put is passed down through pervious concrete filling body 21 and inverted arch 11 is inserted into basement rock, the upper end of each steel floral tube 22 and steel
Reinforced concrete plate 20 is fixedly connected.21 bottom centre position of pervious concrete filling body sets gutter 23.The spray of molten steel
Concrete perfusion in pipe 22.
With reference to Fig. 1, the steel floral tube 22 of armoured concrete slab 20 and internal casting concrete is used as main bearing structure energy
Load is efficiently transferred to the bearing bed of substrate.Pervious concrete filling body 21 and 23 collective effect of gutter, by lateral sulcus 12
The water or the water of injection that cannot be discharged in time are discharged to outside tunnel, reduce soaking time of the underground water to tunnel bottom structure
The groundwater pressure being subject to inverted arch structure effectively reduces the probability that disease occurs.
With reference to Fig. 1, the transmission path of train load that the present invention is mainly subject to is：Track → armoured concrete slab 20 → thoroughly
Water coagulation soil filling body 21 → inverted arch, 11 → base carrier layer.When bottom generation disease or inverted arch and base carrier layer are hanging
When, then the transmission path of train load is：Track → 21 → steel floral tube of pervious concrete filling body 22 (concrete steel floral tube column)
→ base carrier layer, effectively reduce track due to disease and caused by irregularity problem.
The steel floral tube 22 is vertically and horizontally spaced in quincuncial arrangement, and diameter is usually 10cm, also can be according to construction site
Situation be adjusted.The depth for being inserted into basement rock is typically no less than 0.5m, and the label of interior concrete perfusion is not less than C35.Steel
The top of floral tube 22 is connect with the reinforcement welding of armoured concrete slab 20.
A kind of construction method of tunnel bottom structure of the present invention, includes the following steps：
1. after the completion of tunnel excavation, construct inverted arch 11 and both sides lateral sulcus 12, inverted arch 11 be reserved for steel floral tube 22 pass through it is logical
Hole；
2. it is laid with gutter waterway 23 in 11 bottom centre position of inverted arch；
3. steel floral tube 22 is passed through reserved through hole to be inserted into basement rock by steel floral tube 22 of constructing, perfusion coagulation in each steel floral tube 22
Soil；
4. after 22 inner concrete of steel floral tube reaches the 70% of design strength, pervious concrete filling body 21 is poured；
5. by the top of steel floral tube 22 and the reinforcement welding of armoured concrete slab 20, casting concrete completes armored concrete
Plate 20 is constructed.
It constructs in strict accordance with construction method, will can ensure that the construction quality of tunnel bottom structure.
Some principles of only explain through diagrams a kind of tunnel bottom structure of the present invention and its construction method described above, and
It is non-be by the present invention be confined to shown in and the concrete structure and the scope of application in, it is therefore every it is possible that the phase being utilized
It should change and equivalent, belong to the apllied the scope of the claims of the present invention.
Claims (5)
1. a kind of tunnel bottom structure, the lateral sulcus (12) including inverted arch (11) and both sides, it is characterized in that：The both sides lateral sulcus (12)
Between setting armoured concrete slab (20), pervious concrete is set between armoured concrete slab (20) bottom surface and inverted arch (11) surface
Filling body (21), vertically and horizontally spaced steel floral tube (22) is passed down through pervious concrete filling body (21) and inverted arch (11) is inserted
Enter in basement rock, the upper end of each steel floral tube (22) is fixedly connected with armoured concrete slab (20)；The pervious concrete filling body
(21) bottom centre position setting gutter (23).
2. a kind of tunnel bottom structure as described in claim 1, it is characterized in that：The interior concrete perfusion of the steel floral tube (22).
3. a kind of tunnel bottom structure as claimed in claim 2, it is characterized in that：A diameter of 10cm of the steel floral tube (22),
The depth of basement rock is inserted into not less than 0.5m, the label of interior concrete perfusion is not less than C35.
4. a kind of tunnel bottom structure as claimed in claim 3, it is characterized in that：It is mixed with reinforcing bar at the top of the steel floral tube (22)
The reinforcement welding connection of concrete board (20).
5. a kind of construction method of tunnel bottom structure, includes the following steps as described in Claims 1-4 any one：
1. after the completion of tunnel excavation, construction inverted arch (11) and both sides lateral sulcus (12), inverted arch (11) are reserved for steel floral tube (22) and pass through
Through-hole；
2. it is laid with gutter waterway (23) in inverted arch (11) bottom centre position；
3. steel floral tube (22) is inserted into across reserved through hole in basement rock by steel floral tube (22) of constructing, perfusion is mixed in each steel floral tube (22)
Solidifying soil；
4. after steel floral tube (22) inner concrete reaches the 70% of design strength, pervious concrete filling body (21) is poured；
5. by the top of steel floral tube (22) and the reinforcement welding of armoured concrete slab (20), casting concrete completes armored concrete
Plate (20) is constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041516.9A CN108150191A (en) | 2018-01-16 | 2018-01-16 | A kind of tunnel bottom structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041516.9A CN108150191A (en) | 2018-01-16 | 2018-01-16 | A kind of tunnel bottom structure and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150191A true CN108150191A (en) | 2018-06-12 |
Family
ID=62461576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810041516.9A Pending CN108150191A (en) | 2018-01-16 | 2018-01-16 | A kind of tunnel bottom structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810185A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Tunnel bottom pre-reinforcement construction method |
| CN114575197A (en) * | 2022-03-14 | 2022-06-03 | 中铁二院工程集团有限责任公司 | Treatment structure and treatment method for inverted arch disease of high-speed railway tunnel in mountainous area |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040027252A (en) * | 2002-11-22 | 2004-04-01 | (주)현이앤씨 | Construction and design method about center wall of three arch tunnel excavation method |
| CN101493011A (en) * | 2008-12-30 | 2009-07-29 | 中国科学院武汉岩土力学研究所 | Soft expansion type wall rock tunnel support method |
| CN101768974A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Method and device for grouting in hole and effectively stopping grout |
| CN203783590U (en) * | 2013-11-12 | 2014-08-20 | 中铁二院工程集团有限责任公司 | Tunnel bottom soft ground dynamic load and static load separating tunnel structure |
-
2018
- 2018-01-16 CN CN201810041516.9A patent/CN108150191A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040027252A (en) * | 2002-11-22 | 2004-04-01 | (주)현이앤씨 | Construction and design method about center wall of three arch tunnel excavation method |
| CN101493011A (en) * | 2008-12-30 | 2009-07-29 | 中国科学院武汉岩土力学研究所 | Soft expansion type wall rock tunnel support method |
| CN101768974A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Method and device for grouting in hole and effectively stopping grout |
| CN203783590U (en) * | 2013-11-12 | 2014-08-20 | 中铁二院工程集团有限责任公司 | Tunnel bottom soft ground dynamic load and static load separating tunnel structure |
Non-Patent Citations (2)
| Title |
|---|
| 田永铸: "重载铁路软弱基底黄土隧道仰拱开裂整治及隧底加固", 《铁道勘察》, no. 5, pages 59 - 63 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810185A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Tunnel bottom pre-reinforcement construction method |
| CN111810185B (en) * | 2020-06-30 | 2022-04-05 | 中铁二院工程集团有限责任公司 | Tunnel bottom pre-reinforcement construction method |
| CN114575197A (en) * | 2022-03-14 | 2022-06-03 | 中铁二院工程集团有限责任公司 | Treatment structure and treatment method for inverted arch disease of high-speed railway tunnel in mountainous area |
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