CN112727476A - Deep storage regulating tunnel and construction method thereof - Google Patents
Deep storage regulating tunnel and construction method thereof Download PDFInfo
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- CN112727476A CN112727476A CN202110060618.7A CN202110060618A CN112727476A CN 112727476 A CN112727476 A CN 112727476A CN 202110060618 A CN202110060618 A CN 202110060618A CN 112727476 A CN112727476 A CN 112727476A
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- 238000003860 storage Methods 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 title description 9
- 239000004567 concrete Substances 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 43
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 15
- 238000004873 anchoring Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000003911 water pollution Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 2
- 108010066278 cabin-4 Proteins 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000013049 sediment Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The application relates to a deep storage tunnel and a construction method thereof, and the deep storage tunnel comprises a tunnel shell with a circular section, wherein an outer waterproof layer is arranged on the outer side of the tunnel shell, and an inner waterproof layer is arranged on the inner side of the tunnel shell; the tunnel shell is enclosed into a hollow cabin body, a transverse partition plate is arranged in the cabin body, a fixed connection supporting plate is arranged on the inner side of the tunnel shell, two ends of the partition plate are fixedly connected with the supporting plate, the partition plate divides the cabin body into an upper cabin and a lower cabin, an upper flow guide groove which is sunken downwards is arranged in the middle of the partition plate, and upper flow guide slopes which incline to the upper flow guide groove are respectively arranged on two sides of the partition plate; a concrete platform is arranged at the bottom of the lower cabin below the partition plate, a downward sunken lower diversion trench is arranged in the middle of the concrete platform, and downward diversion slopes inclining towards the lower diversion trench are respectively arranged on two sides of the concrete platform; the upper and lower surfaces of the partition board are both provided with inner waterproof layers. This application can carry out effective separation to initial stage rainwater and rainfall later stage rainwater, prevents the water pollution, improves the space utilization of the cabin body, makes things convenient for the maintenance of the cabin body.
Description
Technical Field
The application relates to the technical field of municipal tunnel engineering, in particular to a deep storage regulating tunnel and a construction method thereof.
Background
With the acceleration of the urbanization process of China, the problems of frequent waterlogging, aggravated runoff pollution, water resource loss, deterioration of water ecological environment and the like brought by the traditional urban construction mode become one of the limiting factors restricting the social development.
The construction of a sponge city becomes a necessity of social development. Aiming at the characteristics of low water surface rate, high building density, complicated underground pipelines, dense population, high flood prevention safety pressure and the like in urban central cities, the deep storage regulating tunnel is an effective means for solving urban inland inundation and initial rainwater pollution.
The initial rainwater is at the initial stage of rainfall, a large amount of acid gases, automobile exhaust, factory waste gas and other polluting gases in the air are dissolved in the rainwater, and after the rainwater falls to the ground, the rainwater contains a large amount of organic matters, pathogens, heavy metals, grease, suspended solids and other polluting substances due to scouring of asphalt felt roofs, asphalt concrete roads, construction sites and the like, and the pollution degree of the common urban sewage is generally exceeded.
The initial rainwater is discharged into a river channel, so that the water environment is seriously polluted, and the initial rainwater can be discharged after being treated; if can separately regulate and store the initial rainwater and the rainfall later stage rainwater that the pollution degree is different, be favorable to regulation and control and management of deep tunnel system.
The deep-layer storage tunnel is an important component in a deep-layer tunnel drainage system, is generally built in a deep-layer underground space in order to avoid the influence on underground pipelines, subways and other facilities, and is deeply buried and large in size, so that great difficulty is caused to daily cleaning and maintenance of the tunnel. However, the existing regulation tunnel engineering is high in maintenance cost and low in space utilization rate, when rainstorm occurs, a large amount of initial rainwater and later rainwater collected on the ground flow into the underground tunnel through the inflow vertical shaft, and the initial rainwater and the later rainwater are mixed and regulated.
Therefore, a deep regulation tunnel is needed to solve the above problems, so as to separate the initial rainwater and the rainwater in the later stage of rainfall into separate bins for regulation, effectively separate the initial rainwater and the rainwater in the later stage of rainfall, and reduce the pollution to urban inland inundation and water.
Disclosure of Invention
In order to effectively separate initial rainwater from rainwater in the later rainfall period, prevent water pollution, improve the space utilization rate of a cabin body and facilitate maintenance, the application provides a deep regulation tunnel and a construction method thereof.
The application provides a deep regulation tunnel adopts following technical scheme:
a deep storage tunnel comprises a tunnel shell with a circular cross section, wherein an outer waterproof layer is arranged on the outer side of the tunnel shell, and an inner waterproof layer is arranged on the inner side of the tunnel shell; the tunnel shell is enclosed into a hollow cabin body, a transverse partition plate is arranged in the cabin body, the inner side of the tunnel shell is fixedly connected with oppositely arranged support plates, two ends of the partition plate are fixedly connected with the support plates respectively, the cabin body is divided into an upper cabin and a lower cabin by the partition plate, an upper guide groove which is concave downwards is arranged in the middle of the partition plate, and upper guide slopes which are inclined towards the upper guide groove are arranged on two sides of the partition plate respectively; a concrete platform is arranged at the bottom of the lower cabin below the partition plate, a downward-sunken lower diversion trench is arranged in the middle of the concrete platform, and lower diversion slopes inclining to the lower diversion trench are respectively arranged on two sides of the concrete platform; and the upper surface and the lower surface of the partition plate are both provided with inner waterproof layers.
By adopting the technical scheme, the cabin body is divided into the upper cabin and the lower cabin by the partition plate, the space utilization rate of the cabin body can be improved, the upper diversion slope and the lower diversion slope can guide water flow and sundries to flow into the upper diversion trench and the lower diversion trench, and sediment deposited in the upper cabin and the lower cabin is reduced by the flushing function of the water flow; meanwhile, the upper diversion slope and the lower diversion slope can be used as passages for overhauling vehicles and maintainers, and the maintenance of the tunnel is facilitated.
Preferably, the slopes of the upper diversion slope and the lower diversion slope are both 4-6%.
By adopting the technical scheme, the slopes of the upper diversion slope and the lower diversion slope can guide water flow and sundries to flow into the upper diversion trench and the lower diversion trench, and sediment deposited in the upper cabin and the lower cabin is reduced by the flushing function of the water flow; meanwhile, the maintenance of vehicles and the passing of maintenance personnel are facilitated.
Preferably, the cross sections of the upper diversion trench and the lower diversion trench are arc-shaped or inverted trapezoid.
Through adopting above-mentioned technical scheme, bear the weight of the sediment more easily, through rivers to the washing away of sediment, reduce the deposit of upper chamber and lower cabin siltation.
Preferably, the outer waterproof layer comprises the following components in parts by mass: 20-28 parts of cement, 100-120 parts of quartz sand, 10-15 parts of bentonite, 40-60 parts of fly ash, 50-60 parts of water, 1-2 parts of a water reducing agent and 5-40 parts of latex powder copolymerized by vinyl acetate and ethylene.
By adopting the technical scheme, the leakage of the external liquid into the cabin body can be effectively prevented, meanwhile, the erosion of the external liquid to the tunnel shell can be avoided, and the service life of the tunnel is prolonged.
Preferably, the inner waterproof layer is made of polyurethane waterproof paint or polyurea waterproof paint, and the thickness of the inner waterproof layer is 3-5 mm.
By adopting the technical scheme, the inner waterproof layer can further prevent liquid outside the tunnel from immersing the cabin body and prevent the partition plates from leaking.
Preferably, the widths of the upper diversion slope and the lower diversion slope are both larger than 1.5 m.
By adopting the technical scheme, the widths of the upper diversion slope and the lower diversion slope are both larger than 1.5m, so that the cabin body is convenient for overhauling vehicles and personnel to pass.
Preferably, a ventilation system is arranged at the top of the tunnel shell; and a vent vertical pipe communicated with the upper cabin and the lower cabin is arranged on one side of the partition plate close to the tunnel shell.
Through adopting above-mentioned technical scheme, ventilation system makes things convenient for the cabin body and external gas exchange, and the standpipe of ventilating is convenient for down the cabin and carries out gas exchange with the external world, and the unobstructed also work of the maintainer of being convenient for of gas in the cabin body.
Preferably, the partition plate and the concrete platform are both symmetrically distributed along the axis of the tunnel shell.
By adopting the technical scheme, the partition plate and the concrete platform are symmetrically distributed along the axis of the tunnel shell, so that the construction of the partition plate and the concrete platform is facilitated.
The application also provides a construction method of the deep storage regulating tunnel, which comprises the following steps:
1) excavating the tunnel by adopting a circular shield machine;
2) pre-burying an anchoring part and a supporting plate on the inner wall of the excavated tunnel;
3) spraying an outer waterproof layer on the inner wall of the tunnel;
4) after the outer waterproof layer is solidified, laying a first reinforcing mesh on the outer waterproof layer, and spraying a first concrete layer, wherein the first concrete layer covers the first reinforcing mesh;
5) after the first concrete layer is solidified, laying a second reinforcing mesh on the first concrete layer, and spraying a second concrete layer, wherein the second concrete layer covers the second reinforcing mesh;
6) after the second concrete layer is solidified, spraying an inner waterproof layer;
7) placing and fixing a prefabricated partition plate on a support plate, and spraying inner waterproof layers on the upper surface and the lower surface of the partition plate;
8) and pouring a concrete platform at the bottom of the lower cabin.
Through adopting above-mentioned technical scheme, can guarantee the safe construction in tunnel, effectively prevent the seepage of the outer liquid in tunnel, prolong the life in tunnel.
Preferably, the anchoring member is fixedly connected to the first reinforcing mesh and the second reinforcing mesh respectively.
Through adopting above-mentioned technical scheme, can improve tunnel shell's fastness and durability.
To sum up, the beneficial technical effect of this application does:
this application adopts the division board to separate the regulation space of the cabin body, goes up the cabin and stores rainfall later stage rainwater, and the initial stage rainwater is stored to the cabin down, with initial stage rainwater, rainfall later stage rainwater effectively separation, regulation and control and management of being convenient for, effectively prevents water pollution.
Drawings
Fig. 1 is a schematic cross-sectional view of the present application.
Figure, 1, tunnel shell; 2. an outer waterproof layer; 3. an inner waterproof layer; 4. a cabin body; 41. an upper compartment; 42. a lower cabin; 5. a partition plate; 51. an upper diversion trench; 52. ascending a diversion slope; 6. a support plate; 7. a concrete platform; 71. a lower diversion trench; 72. downward flow guiding slope; 8. a ventilation system; 9. and (4) a vent standpipe.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
As shown in fig. 1, the deep storage tunnel includes a tunnel casing 1 with a circular cross section, and the tunnel casing 1 is circular, so that the deep storage tunnel is good in stress and convenient to manufacture and construct. An outer waterproof layer 2 is arranged on the outer side of the tunnel shell 1, and the outer waterproof layer 2 is prepared from the following components in parts by mass: 20-28 parts of cement, 100-120 parts of quartz sand, 10-15 parts of bentonite, 40-60 parts of fly ash, 50-60 parts of water, 1-2 parts of a water reducing agent and 5-40 parts of latex powder copolymerized by vinyl acetate and ethylene. Through setting up outer waterproof layer 2, can effectively prevent outside liquid to the erosion and the infiltration of tunnel shell 1. An inner waterproof layer 3 is arranged on the inner side of the tunnel shell 1, the inner waterproof layer 3 is made of polyurethane waterproof paint or polyurea waterproof paint, and the thickness of the inner waterproof layer 3 is 3-5 mm; it is possible to further prevent external liquid from leaking into the cabin 4.
The tunnel shell 1 is enclosed into a hollow cabin 4, a transverse partition plate 5 is arranged in the cabin 4, the inner side of the tunnel shell 1 is fixedly connected with support plates 6 which are oppositely arranged, two ends of each partition plate 5 are fixedly connected with the support plates 6 respectively, the partition plates 5 divide the cabin 4 into an upper cabin 41 and a lower cabin 42, the upper cabin 41 and the lower cabin 42 are arranged, and the space utilization rate is high; an upper guide groove 51 which is sunken downwards is arranged in the middle of the partition plate 5, the section of the upper guide groove 51 is arc-shaped or inverted trapezoid, and upper guide slopes 52 which are inclined towards the upper guide groove 51 are respectively arranged on two sides of the partition plate 5; the bottom of the lower cabin 42 below the partition plate 5 is provided with a concrete platform 7, the middle part of the concrete platform 7 is provided with a lower guide groove 71 which is sunken downwards, the section of the lower guide groove 71 is arc-shaped or inverted trapezoid, and two sides of the concrete platform 7 are respectively provided with a lower guide slope 72 which inclines towards the lower guide groove 71. Division board 5 and concrete platform 7 all follow tunnel shell 1's axis symmetric distribution, the construction of division board 5 and concrete platform 7 of being convenient for, and the upper and lower surface of division board 5 all is equipped with interior waterproof layer 3.
The upper cabin 41 is used for regulating and storing rainwater in the later period of rainfall, the lower cabin 42 is used for regulating and storing rainwater in the initial period, and the lower cabin 42 and the upper cabin 41 effectively separate the rainwater in the initial period from the rainwater in the later period of rainfall, so that the space utilization rate of the cabin body 4 is improved, and water pollution is effectively prevented.
In an embodiment, the widths of the upper guide slope 52 and the lower guide slope 72 are both greater than 1.5m, and the upper guide slope 52 and the lower guide slope 72 can also be used for maintaining the passages of vehicles and personnel in the cabin 4, so that the cabin 4 is convenient to maintain the traffic of the vehicles and the personnel, and the tunnel is convenient to maintain.
In one embodiment, the slopes of the upper diversion slope 52 and the lower diversion slope 72 are both 4% -6%, which can guide water flow and impurities to flow into the upper diversion trench 51 and the lower diversion trench 71, and reduce the sediment deposited in the upper cabin 41 and the lower cabin 42 by the flushing function of the water flow; meanwhile, the upper guide slope 52 and the lower guide slope 72 can also be used as passages for maintenance vehicles and maintenance personnel.
In one embodiment, the top of the tunnel enclosure 1 is provided with a ventilation system 8; a vertical vent pipe 9 communicated with the upper cabin 41 and the lower cabin 42 is arranged on one side of the partition plate 5 close to the tunnel shell 1; the vent stack 9 facilitates gas exchange between the air in the lower compartment 42 and the outside through the ventilation system 8, and gas in the upper compartment 41 can exchange between the air in the upper compartment 8 and the outside through the ventilation system 8, which ensures smooth exhaust of the cabin 4.
The construction method of the deep storage regulating tunnel comprises the following steps:
1) excavating the tunnel by adopting a circular shield machine, wherein the circular shield machine excavates the tunnel, so that the section of the tunnel is circular;
2) pre-burying an anchoring part and a supporting plate 6 on the inner wall of the excavated tunnel;
3) spraying an outer waterproof layer 2 on the inner wall of the tunnel;
4) after the outer waterproof layer 2 is cured, laying a first reinforcing mesh on the outer waterproof layer 2, fixedly connecting an anchoring piece with the first reinforcing mesh, and spraying a first concrete layer, wherein the first concrete layer covers the first reinforcing mesh;
5) after the first concrete layer is cured, laying a second reinforcing mesh on the first concrete layer, anchoring the second reinforcing mesh, fixedly connecting the second reinforcing mesh, and spraying a second concrete layer, wherein the second concrete layer covers the second reinforcing mesh;
6) after the second concrete layer is solidified, spraying an inner waterproof layer 3;
7) placing a prefabricated partition plate 5 on a support plate 6 for fixing, and spraying inner waterproof layers 3 on the upper surface and the lower surface of the partition plate 5;
8) and pouring a concrete platform 7 at the bottom of the lower cabin 42.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A deep storage tunnel is characterized by comprising a tunnel shell (1) with a circular cross section, wherein an outer waterproof layer (2) is arranged on the outer side of the tunnel shell (1), and an inner waterproof layer (3) is arranged on the inner side of the tunnel shell (1); the tunnel shell (1) is enclosed to form a hollow cabin body (4), a transverse partition plate (5) is arranged in the cabin body (4), the inner side of the tunnel shell (1) is fixedly connected with support plates (6) which are oppositely arranged, two ends of the partition plate (5) are respectively and fixedly connected with the support plates (6), the cabin body (4) is divided into an upper cabin (41) and a lower cabin (42) by the partition plate (5), an upper guide groove (51) which is sunken downwards is arranged in the middle of the partition plate (5), and upper guide slopes (52) which are inclined towards the upper guide groove (51) are respectively arranged on two sides of the partition plate (5); a concrete platform (7) is arranged at the bottom of the lower cabin (42) below the partition plate (5), a downward-sunken lower diversion trench (71) is arranged in the middle of the concrete platform (7), and lower diversion slopes (72) inclining towards the lower diversion trench (71) are respectively arranged on two sides of the concrete platform (7); and the upper surface and the lower surface of the partition plate (5) are respectively provided with an inner waterproof layer (3).
2. A deep storage tunnel according to claim 1, wherein the upper guide slopes (52) and the lower guide slopes (72) are each 4% to 6% in slope.
3. A deep storage tunnel according to claim 1 or 2, characterised in that the width of both the up guide slopes (52) and the down guide slopes (72) is greater than 1.5 m.
4. A deep storage tunnel according to claim 1, wherein the upper guide groove (51) and the lower guide groove (71) have a circular arc-shaped or inverted trapezoid-shaped cross section.
5. The deep storage tunnel of claim 1, wherein the outer waterproof layer (2) comprises the following components in parts by mass: 20-28 parts of cement, 100-120 parts of quartz sand, 10-15 parts of bentonite, 40-60 parts of fly ash, 50-60 parts of water, 1-2 parts of a water reducing agent and 5-40 parts of latex powder copolymerized by vinyl acetate and ethylene.
6. A deep storage tunnel according to claim 1, wherein the inner waterproof layer (3) is a polyurethane waterproof paint or a polyurea waterproof paint, and the thickness of the inner waterproof layer (3) is 3-5 mm.
7. A deep storage tunnel according to claim 1, characterised in that the top of the tunnel casing (1) is provided with a ventilation system (8); and a vent vertical pipe (9) communicated with the upper cabin (41) and the lower cabin (42) is arranged on one side of the partition plate (5) close to the tunnel shell (1).
8. A deep storage tunnel according to claim 1, characterised in that the partition (5) and the concrete platform (7) are both symmetrically distributed along the axis of the tunnel shell (1).
9. The construction method of a deep storage tunnel according to any one of claims 1 to 8, comprising the steps of:
1) excavating the tunnel by adopting a circular shield machine;
2) pre-burying an anchoring part and a supporting plate (6) on the inner wall of the excavated tunnel;
3) spraying an outer waterproof layer (2) on the inner wall of the tunnel;
4) after the outer waterproof layer (2) is solidified, laying a first reinforcing mesh on the outer waterproof layer (2), and spraying a first concrete layer, wherein the first concrete layer covers the first reinforcing mesh;
5) after the first concrete layer is solidified, laying a second reinforcing mesh on the first concrete layer, and spraying a second concrete layer, wherein the second concrete layer covers the second reinforcing mesh;
6) after the second concrete layer is solidified, spraying an inner waterproof layer (3);
7) placing a prefabricated partition plate (5) on a support plate (6) for fixing, and spraying inner waterproof layers (3) on the upper surface and the lower surface of the partition plate (5);
8) and pouring a concrete platform (7) at the bottom of the lower cabin (42).
10. The method of constructing a deep storage tunnel of claim 9, wherein the anchoring member is fixedly connected to the first reinforcing mat and the second reinforcing mat, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110060618.7A CN112727476A (en) | 2021-01-18 | 2021-01-18 | Deep storage regulating tunnel and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110060618.7A CN112727476A (en) | 2021-01-18 | 2021-01-18 | Deep storage regulating tunnel and construction method thereof |
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| CN112727476A true CN112727476A (en) | 2021-04-30 |
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| CN110080366A (en) * | 2019-04-15 | 2019-08-02 | 河海大学 | It is a kind of to regulate and store the bed protection structure of tunnel waterpower sand discharge dredging for deep layer |
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2021
- 2021-01-18 CN CN202110060618.7A patent/CN112727476A/en active Pending
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| JPS646496A (en) * | 1987-06-26 | 1989-01-11 | Taisei Corp | Method of starting shielding machine in water bottom |
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Application publication date: 20210430 |