CN205013017U - Severe cold district tunnel heat preservation lining cutting structure - Google Patents
Severe cold district tunnel heat preservation lining cutting structure Download PDFInfo
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- CN205013017U CN205013017U CN201520746729.3U CN201520746729U CN205013017U CN 205013017 U CN205013017 U CN 205013017U CN 201520746729 U CN201520746729 U CN 201520746729U CN 205013017 U CN205013017 U CN 205013017U
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Abstract
The utility model discloses a severe cold district tunnel heat preservation lining cutting structure, including initial stage supporting construction, lie in the inboard mould of initial stage supporting construction and build concrete supporting layer, mat formation and build the inboard first waterproof board of concrete supporting layer at the mould, lie in the inboard heat preservation of first waterproof board, mat formation at the second waterproof board of in situ side that keeps warm, lie in the inboard secondary lining of second waterproof board and lie in the inverted arch of secondary lining below, initial stage supporting construction spouts supporting construction for the anchor net, second waterproof board and first waterproof board are located the inside and outside both sides of heat preservation respectively, and first waterproof board, heat preservation and the formation of second waterproof board are located the mould and build the middle isolation layer between concrete supporting layer and the secondary lining, and the mould is built to fill up between concrete supporting layer and the first waterproof board and is equipped with one deck geotechnique cloth. The utility model has the advantages of simple structure and reasonable design and construction convenience, excellent in use effect can solve the disease problem that country rock freeze -thaw cycle produced around the body of hole to the lining cutting structure, durability well and service life long.
Description
Technical field
The utility model belongs to technical field of tunnel construction, especially relates to a kind of extremely frigid zones tunnel insulation liner structure.
Background technology
Extremely frigid zones generally refers to the area that height above sea level, throughout the year low temperature, frozen soil are not changed throughout the year or the area that high latitude, throughout the year low temperature, frozen soil are not changed throughout the year.Extremely frigid zones Tunnel Design and ordinary crossing have larger difference, take the principle of " stifled row lays equal stress on; anti-freezing and heat-insulating ", and the variation tendency of integrating tunnel country rock underground water complexity, underground water is on tunnel impact and construction of tunnel geology characteristic, solves the disease problem that around the body of hole, country rock Frozen-thawed cycled produces liner structure.During as constructed to the large beam tunnel in the high iron wire in Lanzhou and Xinjiang and tunnel, the Qilian mountains, crossbeam tunnel slope well head height above sea level 3790m, rail level absolute altitude 3607m are Lanzhou-Xinjiang high ferro height above sea level peak completely; Tunnel, the Qilian mountains is only second to large beam tunnel, is all fronts the second High aititude point, height above sea level 3610m.Large beam tunnel and tunnel, the Qilian mountains are between the Qilian mountains of eastern Tibetan north edge, belong to extremely frigid zones, engineering geology complex structure, depth of cut is large, and diastrophism is strong, structure, complex formation, dry, weathering is strong, and these features cause rock crushing, and fault zone distribution is more.When this kind of High aititude, high latitude, extremely frigid zones build tunnel, tunnel is subject to the impact of Seasonal Freeze-thaw Soils, frost heave action, and difficulty of construction is very large, and referential construction experience is considerably less.Lining cutting is for preventing surrouding rock deformation or the permanent supporting and protection structure of building along materials such as tunnel trunk periphery steel concrete of caving in, liner structure is destroyed for preventing extremely frigid zones country rock Frozen-thawed cycled, simple, the reasonable in design and easy construction of a kind of structure, extremely frigid zones tunnel insulation liner structure that result of use is good need be designed, effectively can solve the disease problem that around the body of hole, country rock Frozen-thawed cycled produces liner structure, excellent in durability and service life long.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of extremely frigid zones tunnel insulation liner structure is provided, simple, the reasonable in design and easy construction of its structure, result of use are good, effectively can solve the disease problem that around the body of hole, country rock Frozen-thawed cycled produces liner structure, excellent in durability and service life long.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of extremely frigid zones tunnel insulation liner structure, it is characterized in that: comprise the preliminary bracing structure of the arch of institute's construction tunnel and left and right sides arch wall being carried out to supporting, the form concrete be positioned at inside described preliminary bracing structure props up sheath, mat formation and prop up the first splash guard inside sheath at form concrete, be positioned at the insulation layer inside described first splash guard, second splash guard of mating formation inside insulation layer, be positioned at secondary lining inside the second splash guard and be positioned at bottom secondary lining and by the shaping inverted arch of concreting, described secondary lining is concrete lining and itself and inverted arch are built and be integrated, described preliminary bracing structure for bolt-mesh-spurting supporting structure and it comprise anchor pole that many rows lay from front to back along the longitudinal extension direction of institute's construction tunnel, be mounted on institute's construction tunnel Tunnel inwall on steel mesh reinforcement and spray the layer of concrete that the concrete on described Tunnel inwall formed, described steel mesh reinforcement is fixed in layer of concrete, often arranges described anchor pole and includes the many anchor poles along the circumferential direction laid from left to right, the thickness of described layer of concrete is 25cm ~ 35cm, and the thickness that described form concrete props up sheath is 25cm ~ 35cm, and the thickness of described secondary lining is 35cm ~ 45cm, described second splash guard and the first splash guard lay respectively at the inside and outside both sides of insulation layer, and the formation of the first splash guard, insulation layer and the second splash guard props up the intermediate isolating layer between sheath and secondary lining at form concrete, described form concrete props up to pad between sheath and the first splash guard and one deck geotextiles is housed.
Above-mentioned extremely frigid zones tunnel insulation liner structure, is characterized in that: described insulation layer is polyurethane thermal insulation board.
Above-mentioned extremely frigid zones tunnel insulation liner structure, is characterized in that: the bottom of institute's construction tunnel is provided with basal layer, and described inverted arch is positioned on basal layer, and the left and right sides that described layer of concrete and form concrete prop up sheath is all supported on basal layer.
Above-mentioned extremely frigid zones tunnel insulation liner structure, is characterized in that: described basal layer is concrete foundation layer.
Above-mentioned extremely frigid zones tunnel insulation liner structure, is characterized in that: the thickness of described insulation layer is 3cm ~ 8cm.
Above-mentioned extremely frigid zones tunnel insulation liner structure, is characterized in that: the many described anchor poles often arranged in described anchor pole are all laid in even, and the front and back described anchor pole of adjacent two row is in being laid staggeredly; The outer end of often arranging each anchor pole in described anchor pole is all fixed in layer of concrete.
The utility model compared with prior art has the following advantages:
1, simple, the reasonable in design and construction sequence of structure is simple, and easy construction, input cost is lower.
2, adopt composite lining structure, be respectively preliminary bracing structure from outside to inside, form concrete props up sheath, intermediate isolating layer and secondary lining, form double-deck waterproof, cold-proof heat insulation lining structure; Form concrete props up between sheath and secondary lining and is provided with intermediate isolating layer; intermediate isolating layer adopts the structure of insulation layer and inside and outside two splash guards; secondary lining and form concrete is made to prop up sheath and preliminary bracing structure is completely isolated; reduce the exchange heat in Tunnel and between stratum, play protection of permafrost, prevent water seepage of tunnel, prevent the effects such as frost failure.
3, result of use is good, effectively can solve the disease problem that around the body of hole, country rock Frozen-thawed cycled produces liner structure, excellent in durability and service life long.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the close-up schematic view at A place in Fig. 1.
Description of reference numerals:
1-institute construction tunnel; 2-form concrete props up sheath; 3-the first splash guard;
4-insulation layer; 5-the second splash guard; 6-secondary lining;
7-inverted arch; 8-basal layer; 9-1-anchor pole;
9-2-layer of concrete.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, the utility model comprises the preliminary bracing structure of the arch of institute's construction tunnel 1 and left and right sides arch wall being carried out to supporting, the form concrete be positioned at inside described preliminary bracing structure props up sheath 2, mat formation and prop up the first splash guard 3 inside sheath 2 at form concrete, be positioned at the insulation layer 4 inside described first splash guard 3, second splash guard 5 of mating formation inside insulation layer 4, be positioned at secondary lining inside the second splash guard 56 and be positioned at bottom secondary lining 6 and by the shaping inverted arch 7 of concreting, described secondary lining 6 for concrete lining and itself and inverted arch 7 build and be integrated.Described preliminary bracing structure for bolt-mesh-spurting supporting structure and it comprise anchor pole 9-1 that many rows lay from front to back along the longitudinal extension direction of institute's construction tunnel 1, be mounted on institute's construction tunnel 1 Tunnel inwall on steel mesh reinforcement and spray the layer of concrete 9-2 that the concrete on described Tunnel inwall formed, described steel mesh reinforcement is fixed in layer of concrete 9-2, often arranges described anchor pole 9-1 and includes the many anchor pole 9-1 along the circumferential direction laid from left to right.The thickness of described layer of concrete 9-2 is 25cm ~ 35cm, and the thickness that described form concrete props up sheath 2 is 25cm ~ 35cm, and the thickness of described secondary lining 6 is 35cm ~ 45cm.Described second splash guard 5 and the first splash guard 3 lay respectively at the inside and outside both sides of insulation layer 4, and the first splash guard 3, insulation layer 4 and the second splash guard 5 are formed and prop up intermediate isolating layer between sheath 2 and secondary lining 6 at form concrete.Described form concrete props up to pad between sheath 2 and the first splash guard 3 and one deck geotextiles is housed.
In the present embodiment, described insulation layer 4 is polyurethane thermal insulation board.
During practice of construction, described insulation layer 4 also can adopt the warming plate of other material.
Meanwhile, the bottom of institute's construction tunnel 1 is provided with basal layer 8, and described inverted arch 7 is positioned on basal layer 8, and the left and right sides that described layer of concrete 9-2 and form concrete prop up sheath 2 is all supported on basal layer 8.
In the present embodiment, described basal layer 8 is concrete foundation layer.
During practice of construction, described basal layer 8 also can adopt the basic unit formed by fillings such as rock slags.
In practice of construction process, the thickness of described insulation layer 4 is 3cm ~ 8cm.
In the present embodiment, the thickness of described layer of concrete 9-2 is 30cm, and the thickness that described form concrete props up sheath 2 is 30cm, and the thickness of described secondary lining 6 is 40cm.The thickness of described insulation layer 4 is 5cm.
During practice of construction, can according to specific needs, the thickness of thickness and secondary lining 6 that layer of concrete 9-2, form concrete prop up sheath 2 and insulation layer 4 be adjusted accordingly.
In the present embodiment, the many described anchor pole 9-1 often arranged in described anchor pole 9-1 all lay in even, and the front and back described anchor pole 9-1 of adjacent two row is in being laid staggeredly.The outer end of often arranging each anchor pole 9-1 in described anchor pole 9-1 is all fixed in layer of concrete 9-2.
In practice of construction process, first along the longitudinal extension direction of institute's construction tunnel 1, before backward, described preliminary bracing structure is constructed, concrete pouring construction is carried out again by propping up sheath 2 to form concrete before backward inside the described preliminary bracing structure of having constructed, by propping up inside sheath 2 at the form concrete of having constructed before backward, described intermediate isolating layer being constructed afterwards, finally adopting working jumbo for tunnel lining to construct to secondary lining 6 inside the described intermediate isolating layer of having constructed before backward.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. an extremely frigid zones tunnel insulation liner structure, it is characterized in that: comprise the preliminary bracing structure of the arch of institute's construction tunnel (1) and left and right sides arch wall being carried out to supporting, the form concrete be positioned at inside described preliminary bracing structure props up sheath (2), mat formation and prop up first splash guard (3) of sheath (2) inner side at form concrete, be positioned at the insulation layer (4) of described first splash guard (3) inner side, mat formation at second splash guard (5) of insulation layer (4) inner side, be positioned at the secondary lining (6) of the second splash guard (5) inner side and be positioned at bottom secondary lining (6) and by the shaping inverted arch (7) of concreting, described secondary lining (6) for concrete lining and itself and inverted arch (7) build and be integrated, described preliminary bracing structure for bolt-mesh-spurting supporting structure and it comprise anchor pole (9-1) that many rows lay from front to back along the longitudinal extension direction of institute's construction tunnel (1), be mounted on institute's construction tunnel (1) Tunnel inwall on steel mesh reinforcement and spray the layer of concrete (9-2) that the concrete on described Tunnel inwall formed, described steel mesh reinforcement is fixed in layer of concrete (9-2), often arranges described anchor pole (9-1) and includes the many anchor poles along the circumferential direction laid from left to right (9-1), the thickness of described layer of concrete (9-2) is 25cm ~ 35cm, and the thickness that described form concrete props up sheath (2) is 25cm ~ 35cm, and the thickness of described secondary lining (6) is 35cm ~ 45cm, described second splash guard (5) and the first splash guard (3) lay respectively at the inside and outside both sides of insulation layer (4), and the first splash guard (3), insulation layer (4) and the second splash guard (5) are formed and be positioned at form concrete and prop up intermediate isolating layer between sheath (2) and secondary lining (6), described form concrete props up to pad between sheath (2) and the first splash guard (3) and one deck geotextiles is housed.
2. according to extremely frigid zones tunnel insulation liner structure according to claim 1, it is characterized in that: described insulation layer (4) is polyurethane thermal insulation board.
3. according to the extremely frigid zones tunnel insulation liner structure described in claim 1 or 2, it is characterized in that: the bottom of institute's construction tunnel (1) is provided with basal layer (8), described inverted arch (7) is positioned on basal layer (8), and the left and right sides that described layer of concrete (9-2) and form concrete prop up sheath (2) is all supported on basal layer (8).
4. according to extremely frigid zones tunnel insulation liner structure according to claim 3, it is characterized in that: described basal layer (8) is concrete foundation layer.
5. according to the extremely frigid zones tunnel insulation liner structure described in claim 1 or 2, it is characterized in that: the thickness of described insulation layer (4) is 3cm ~ 8cm.
6. according to the extremely frigid zones tunnel insulation liner structure described in claim 1 or 2, it is characterized in that: the many described anchor poles (9-1) of often arranging in described anchor pole (9-1) are all laid in even, the adjacent two described anchor pole of the rows (9-1) in front and back are in being laid staggeredly; The outer end of often arranging each anchor pole (9-1) in described anchor pole (9-1) is all fixed in layer of concrete (9-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746729.3U CN205013017U (en) | 2015-09-24 | 2015-09-24 | Severe cold district tunnel heat preservation lining cutting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746729.3U CN205013017U (en) | 2015-09-24 | 2015-09-24 | Severe cold district tunnel heat preservation lining cutting structure |
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| CN205013017U true CN205013017U (en) | 2016-02-03 |
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| CN201520746729.3U Active CN205013017U (en) | 2015-09-24 | 2015-09-24 | Severe cold district tunnel heat preservation lining cutting structure |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988769A (en) * | 2017-06-02 | 2017-07-28 | 安徽理工大学 | A kind of deep High-geotemperature tunnel heat-insulation liner structure and its construction method |
| CN107587881A (en) * | 2017-10-30 | 2018-01-16 | 中铁五局集团第五工程有限责任公司 | A kind of composite lining structure and construction technology for permafrost tunnel |
| CN108222970A (en) * | 2018-02-09 | 2018-06-29 | 中国人民解放军陆军工程大学 | A kind of extremely frigid zones people occupies underground engineering insulation construction |
| CN108301852A (en) * | 2018-04-09 | 2018-07-20 | 铁科创恒新材料科技有限公司 | A kind of self-adhering type insulation spill guide and its paving hanging method |
| CN108316955A (en) * | 2018-03-05 | 2018-07-24 | 中铁六局集团有限公司 | A kind of construction method of the anchor bar of waterproof plate in tunnels without longitudinal construction joint |
| CN108533284A (en) * | 2018-02-01 | 2018-09-14 | 中铁十二局集团有限公司 | A kind of tunnel cross-section just builds construction technology |
| CN108756942A (en) * | 2018-05-28 | 2018-11-06 | 中交城市轨道交通设计研究院有限公司 | A kind of double lining tunnel equipped with insulation layer structure |
| CN109578028A (en) * | 2019-02-12 | 2019-04-05 | 河北交通职业技术学院 | Tunnel in cold area freezing prevention method |
| CN111561332A (en) * | 2020-04-25 | 2020-08-21 | 中山大学 | Construction method of mountain tunnel shock-insulation waterproof heat-insulation high polymer |
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2015
- 2015-09-24 CN CN201520746729.3U patent/CN205013017U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988769A (en) * | 2017-06-02 | 2017-07-28 | 安徽理工大学 | A kind of deep High-geotemperature tunnel heat-insulation liner structure and its construction method |
| CN106988769B (en) * | 2017-06-02 | 2023-06-23 | 安徽理工大学 | Deep high-ground-temperature roadway heat insulation lining structure and construction method thereof |
| CN107587881A (en) * | 2017-10-30 | 2018-01-16 | 中铁五局集团第五工程有限责任公司 | A kind of composite lining structure and construction technology for permafrost tunnel |
| CN108533284A (en) * | 2018-02-01 | 2018-09-14 | 中铁十二局集团有限公司 | A kind of tunnel cross-section just builds construction technology |
| CN108222970A (en) * | 2018-02-09 | 2018-06-29 | 中国人民解放军陆军工程大学 | A kind of extremely frigid zones people occupies underground engineering insulation construction |
| CN108316955A (en) * | 2018-03-05 | 2018-07-24 | 中铁六局集团有限公司 | A kind of construction method of the anchor bar of waterproof plate in tunnels without longitudinal construction joint |
| CN108316955B (en) * | 2018-03-05 | 2019-08-16 | 中铁六局集团有限公司 | A kind of construction method of the anchor bar of waterproof plate in tunnels without longitudinal construction joint |
| CN108301852A (en) * | 2018-04-09 | 2018-07-20 | 铁科创恒新材料科技有限公司 | A kind of self-adhering type insulation spill guide and its paving hanging method |
| CN108756942A (en) * | 2018-05-28 | 2018-11-06 | 中交城市轨道交通设计研究院有限公司 | A kind of double lining tunnel equipped with insulation layer structure |
| CN109578028A (en) * | 2019-02-12 | 2019-04-05 | 河北交通职业技术学院 | Tunnel in cold area freezing prevention method |
| CN111561332A (en) * | 2020-04-25 | 2020-08-21 | 中山大学 | Construction method of mountain tunnel shock-insulation waterproof heat-insulation high polymer |
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