CN114109395B - Tunnel dirt-cleaning and flow-dividing construction method and structure - Google Patents
Tunnel dirt-cleaning and flow-dividing construction method and structure Download PDFInfo
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- CN114109395B CN114109395B CN202111315264.2A CN202111315264A CN114109395B CN 114109395 B CN114109395 B CN 114109395B CN 202111315264 A CN202111315264 A CN 202111315264A CN 114109395 B CN114109395 B CN 114109395B
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 182
- 239000010865 sewage Substances 0.000 claims abstract description 85
- 239000002351 wastewater Substances 0.000 claims abstract description 82
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
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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
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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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)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a tunnel sewage-cleaning and shunting construction method and a structure thereof. The sewage-cleaning diversion downhill drainage structure comprises a clear water discharge ditch, a waste water fixed pump station and a clear water fixed pump station; the sewage-cleaning diversion reverse slope drainage structure also comprises a water collecting pit and a waste water mobile pump station; the sewage-cleaning and flow-dividing inclined shaft drainage structure comprises three groups of waste water fixing pump stations and clear water fixing pump stations which are sequentially arranged along the inclined shaft drainage direction. The process flow of the invention is that clear water and sewage are discharged in a split way. Collecting as much clear water flowing into the surrounding rock side as possible by utilizing the ditches at the two sides of the positive tunnel, the flat-guiding blind ditches and the opposite-side open ditches as clear ditches; the water tank beside the central ditch of the main tunnel and the auxiliary tunnel blind ditch is used as a waste water ditch to discharge waste water.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly relates to a construction method and structure for environmental protection and guarantee measures of ecologically vulnerable areas.
Background
In recent years, along with the acceleration of engineering construction in China, tunnel and underground engineering construction projects are increasingly increased, and the large number of railway, highway and subway tunnels, large length, large burial depth and large section are general trends of tunnel engineering development. In the whole life cycle of tunnel construction and operation, drainage guarantee is a key index, and particularly in the construction stage, construction wastewater, surrounding rock water seepage and water burst restrict tunnel civilization construction and influence high-quality construction level, and drainage of construction wastewater and surrounding rock water seepage also seriously influence the surrounding environment outside a tunnel, ecological protection and the like.
The traditional three-level and four-level precipitation cannot meet the increasingly-improved environmental protection requirements, particularly the environmental protection and soil conservation requirements of partial ecological fragile areas are higher, and the requirements on the sewage treatment capacity restrict the tunnel construction cost on the premise of constructing a sewage treatment station for carrying out construction sewage treatment, so that the construction process suitable for environmental protection and guarantee of the ecological fragile areas is provided with important significance.
Disclosure of Invention
The invention aims to design a tunnel dirt-removing and flow-dividing construction structure which has the advantages of less humanization, high environmental protection degree, good water and soil conservation effect, low construction cost, high construction efficiency, low construction risk, strong popularization and application and the like in tunnel construction.
The technical scheme adopted by the invention is a tunnel sewage-cleaning and flow-dividing construction structure, and the tunnel sewage-cleaning and flow-dividing comprises three structural situations of a sewage-cleaning and flow-dividing downhill drainage structure, a sewage-cleaning and flow-dividing reverse-slope drainage structure and a sewage-cleaning and flow-dividing inclined shaft drainage structure.
The sewage disposal diversion downhill drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3 and a clear water fixed pump station 4; the clear water discharge ditch 1 is arranged on two sides of the waste water discharge ditch 2 and is distributed along the downhill direction, and the waste water fixed pump station 3 and the clear water fixed pump station 4 are arranged on the upstream of the downhill. The clean water fixed pump station 4 is communicated with the clean water discharge ditch 1 through a steel pipe; the waste water fixing pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
The sewage disposal diversion reverse slope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3, a clear water fixed pump station 4, a water collecting pit 5 and a waste water mobile pump station 6; the clean water discharge ditches 1 are arranged on two sides of the waste water discharge ditches 2 and are distributed along the reverse slope direction, the number of the clean water fixed pump stations 4 is two, and the waste water fixed pump stations 3 and the first clean water fixed pump station 4 are arranged at the downstream of the reverse slope; the first clear water fixed pump station 4 is communicated with the clear water discharge ditch 1 through a steel pipe; the wastewater fixing pump station 3 is communicated with the wastewater discharge ditch 2 through a steel pipe; the end part of the clean water discharge ditch 1 communicated with the transverse channel is provided with a water collecting pit 5; the second clean water fixed pump station 4 is communicated with the water collecting pit 5 through a steel pipe; the tunnel face of the upstream side of the counter slope is provided with a wastewater mobile pump station 6, and the wastewater mobile pump station 6 is communicated with the wastewater fixed pump station 3 through a steel pipe.
The sewage disposal diversion inclined shaft drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3 and a clear water fixed pump station 4; the three groups of wastewater fixing pump stations 3 and clear water fixing pump stations 4 are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch 1 and the wastewater discharge ditch 2 are respectively arranged at two sides of the drainage direction of the inclined shaft; the clean water fixed pump station 4 is communicated with the clean water discharge ditch 1 through a steel pipe; the waste water fixing pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
In the sewage-cleaning and diversion inclined shaft drainage structure, a drain hole is formed in an inclined shaft lining, clear water in the inclined shaft is led into a clear water discharge ditch 1 through the drain hole, and a composite lining is arranged at a concentrated water-gushing section of the inclined shaft.
A tunnel sewage disposal and diversion construction method comprises the following steps that S1, temporary water collecting grooves are formed in a tunnel face in construction, construction wastewater of the tunnel face is collected, a special sewage pipeline is utilized to be discharged out of a hole, and the sewage is led into a sewage treatment station after being precipitated by a precipitation tank to be treated, and is washed and greening to be discharged after reaching standards.
S2, setting an independent water collecting ditch for the downhill drainage tunnel, separating clean water from sewage for downhill drainage, detecting clean water through a hole adjusting tank, directly utilizing pollution-free or discharging nearby water systems, precipitating sewage through a precipitation tank, treating sewage by a sewage treatment station, and discharging after reaching standards.
S3, a sewage bin and a clear water bin are arranged after a distance is constructed in the reverse slope drainage tunnel, independent water collecting ditches are arranged, clear water and sewage are independently put into the bin, the clear water is discharged out of a hole through a submersible pump and a sewage pump which are arranged in the water bin, clear water can be directly utilized or discharged to be adjacent to the water system through detection of a hole adjusting tank, and the sewage is precipitated in a precipitation tank and discharged after reaching the standard through treatment of a sewage treatment station.
The process flow of the invention is that clear water and sewage are discharged in a split way. The structure discharges construction wastewater and primary support water seepage containing chemical agents at the unlined section in the tunnel construction stage, enters a sewage treatment station after precipitation, and discharges after reaching standards; water is filled into the tunnel face, water is permeated into the lining section, and the tunnel face is discharged out of the adjusting pool, so that the tunnel face water can be directly discharged into an adjacent water system according to the situation. The drainage is respectively discharged according to the sewage cleaning and diversion principle, the underground water seepage of the tunnel face excavation section, the primary support and the unfinished section of the secondary lining side ditch, the construction pavement scattered drainage in the tunnel, the construction wastewater and the like are sewage, and the back drainage of the lining finishing section is clear water. The construction stage is to discharge the sewage after collecting to the sewage treatment station outside the hole, discharge after the treatment reaches the standard, collect clear water and use a part of the water for production, a part of the water is directly discharged outside the hole. Collecting as much clear water flowing into the surrounding rock side as possible by utilizing the ditches at the two sides of the positive tunnel, the flat-guiding blind ditches and the opposite-side open ditches as clear ditches; the water tank beside the central ditch of the main tunnel and the auxiliary tunnel blind ditch is used as a waste water ditch to discharge waste water.
Drawings
FIG. 1 is a schematic view of sewage disposal diversion downhill drainage.
Fig. 2 is a schematic view of the sewage disposal diversion reverse slope drainage.
FIG. 3 is a schematic diagram of a drainage of a clean-up diversion inclined shaft.
Detailed Description
The invention will be described in detail below with reference to the drawings and examples.
A tunnel sewage-cleaning and shunting construction structure comprises three structural situations of a sewage-cleaning and shunting downhill drainage structure, a sewage-cleaning and shunting reverse hill drainage structure and a sewage-cleaning and shunting inclined shaft drainage structure.
The sewage disposal diversion downhill drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3 and a clear water fixed pump station 4; the clear water discharge ditch 1 is arranged on two sides of the waste water discharge ditch 2 and is distributed along the downhill direction, and the waste water fixed pump station 3 and the clear water fixed pump station 4 are arranged on the upstream of the downhill. The clean water fixed pump station 4 is communicated with the clean water discharge ditch 1 through a steel pipe; the waste water fixing pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
The sewage disposal diversion reverse slope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3, a clear water fixed pump station 4, a water collecting pit 5 and a waste water mobile pump station 6; the clean water discharge ditches 1 are arranged on two sides of the waste water discharge ditches 2 and are distributed along the reverse slope direction, the number of the clean water fixed pump stations 4 is two, and the waste water fixed pump stations 3 and the first clean water fixed pump station 4 are arranged at the downstream of the reverse slope; the first clear water fixed pump station 4 is communicated with the clear water discharge ditch 1 through a steel pipe; the wastewater fixing pump station 3 is communicated with the wastewater discharge ditch 2 through a steel pipe; the end part of the clean water discharge ditch 1 communicated with the transverse channel is provided with a water collecting pit 5; the second clean water fixed pump station 4 is communicated with the water collecting pit 5 through a steel pipe; the tunnel face of the upstream side of the counter slope is provided with a wastewater mobile pump station 6, and the wastewater mobile pump station 6 is communicated with the wastewater fixed pump station 3 through a steel pipe.
The sewage disposal diversion inclined shaft drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixed pump station 3 and a clear water fixed pump station 4; the three groups of wastewater fixing pump stations 3 and clear water fixing pump stations 4 are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch 1 and the wastewater discharge ditch 2 are respectively arranged at two sides of the drainage direction of the inclined shaft; the clean water fixed pump station 4 is communicated with the clean water discharge ditch 1 through a steel pipe; the waste water fixing pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
In the sewage-cleaning and diversion inclined shaft drainage structure, a drain hole is formed in an inclined shaft lining, clear water in the inclined shaft is led into a clear water discharge ditch 1 through the drain hole, and a composite lining is arranged at a concentrated water-gushing section of the inclined shaft.
During construction, sewage is strictly forbidden to drain into a clear water ditch, and a clear water drain ditch, a water collecting pit and the like take covering measures to avoid sewage from splashing in. The auxiliary tunnel annular blind pipes are temporarily connected into a temporary clear water ditch, the clear water ditch adopts a concrete ditch, and stubble-connecting steel bars are arranged.
The water pumping equipment meets the basic requirement of drainage of each work area and is divided into two groups of working and standby water.
The water discharged by the sewage disposal and diversion of the tunnel is divided into positive tunnel, flat guide and downhill drainage and reverse slope drainage, and inclined shaft drainage.
The water ditch is adopted for natural drainage along the slope: the positive hole and the flat guide clear water are directly discharged outside the hole from the clear water ditch, and the sewage is collected by the sewage ditch and discharged outside the hole for treatment, as shown in figure 1.
The counter slope adopts a water collecting pit and a small automatic water pump station, and is discharged outside the hole after being pumped and discharged to a fixed pump station through a one-way valve and counter slope drainage: the positive hole clear water is collected to each level of positive hole clear water pump station by the clear water ditch on the outer side of the lining section, the clear water ditch on the inner side is led to the flat guide clear water ditch or the positive hole clear water pump station, and pump station water is pumped and discharged to the clear water discharge ditch on the downhill section through a side wall pipe hanging mode and is directly discharged to the outside of the hole. The sewage in the positive tunnel is collected to the face by the central ditch, lifted to the sewage pump station in the positive tunnel by the water pump, pumped and discharged to the sewage discharge ditch in the downhill section by a side wall pipe hanging mode, and discharged to the outside of the tunnel for treatment. The flat guide clear water is collected to a flat guide clear water pump station by a clear water ditch, the flat guide sewage is collected to a flat guide tunnel face by a sewage ditch, the flat guide clear water is lifted to the flat guide sewage pump station by a water pump, and the flat guide clear water is pumped and discharged to a sewage ditch of a downhill section by the pump stations through side wall hanging pipes respectively, as shown in figure 2.
The clear water and the sewage of the inclined shaft are respectively collected in a clear water pump station and a sewage pump station at the bottom of the well, and are pumped out of the well by the clear water pump station and the sewage pump station at each level in the inclined shaft, wherein the sewage is required to be treated outside the well, as shown in figure 3.
The size (length x width x depth) of the water collection pit 5 of the sewage disposal diversion reverse slope drainage structure is 1.2m x 0.6m, and the water outlet of the tunnel face and the construction waste water are intercepted and drained. The bottom laying section of the inclined shaft is constructed, a transverse intercepting ditch (width is 0.3 m) and a water collecting pit are arranged according to actual conditions, the size (length, width and depth) is 1.2mx1.2mx0.6m, and the intercepting drainage is carried out on the water discharged from the bottom laying surface. The bottom is paved with two side drainage ditches, the left side drainage ditch is 35cm multiplied by 20cm in size (width multiplied by depth), the right side drainage ditch is 15cm multiplied by 15cm in size (width multiplied by depth), and drainage is conducted on the arch part of the supported section and the effluent of the side wall.
Examples
The tunnel drainage overall scheme is four stages, namely downhill drainage and reverse slope drainage are carried out in actual construction, natural drainage is carried out in a downhill construction section, temporary water collecting pits are arranged only in a tunnel face or an inverted arch construction section, and a sewage pump is arranged to drain the sewage pump to the inverted arch side ditch for natural outflow; besides installing sewage pumps on the tunnel face and the inverted arch construction section, the reverse slope construction section is also provided with one-stage or multi-stage relay pump stations in stages according to the on-site pumping and draining requirements, so that sewage and clear water are drained to the planned positions. The arch wall lining finishing section is used as clear water for pumping and discharging; and the running water from the excavation surface to the area between lining operation trolleys is used as sewage to be pumped and discharged, and the clean water, the sewage pump and the pipeline are required to be independently arranged and respectively pumped and discharged.
(1) First stage drainage arrangement
The first stage is that the exit and the flat guide are at the slope changing point, the exit of the positive tunnel and the flat guide are both naturally drained along the slope, and the inclined shaft is driven by the combination of the drainage of the fixed pump station and the temporary mobile pump station.
(2) Second stage drainage arrangement
The second stage is to assist the excavation of tunnels (inclined shafts) to the front of intersections with the positive holes, the exit is flat-guiding, the positive holes pass through the slope changing points, the reverse slope drainage is adopted, the inclined shafts are driven by the combination of the fixed pump station and the temporary mobile pump station drainage, and the inclined shaft primary and secondary pump stations are formed as soon as possible.
(3) Third stage drainage arrangement
The third stage is to assist the tunnel (inclined shaft) to enter the positive hole, horizontally guide and excavate towards the inlet and outlet directions simultaneously, the positive hole and horizontally guide inlet directions adopt reverse slope drainage, the outlet directions drain along the slope, and the inclined shaft bottom and the horizontally guide fixed pumping pump station are utilized to drain the outside of the inclined shaft; and the construction of the forward tunnel and the parallel guiding in the outlet direction is reverse slope drainage, and the sewage pump and the relay pump are utilized to drain the outside of the tunnel.
(4) Fourth stage drainage arrangement
And the fourth stage is that the auxiliary tunnels (inclined shafts) are communicated with the direction of the positive tunnel and the direction of the flat guiding outlet, and only the small mileage direction is not communicated with the adjacent auxiliary tunnels (inclined shafts), so that the reverse slope drainage is adopted.
Taking drainage of a certain tunnel as an example, the specific process flow is as follows:
s1, temporary water collecting tanks (movable water collecting tanks) are arranged on a face in construction, construction wastewater (drilling and blasting water, flushing wastewater of a concrete wet spraying vehicle and the like) on the face is collected, a special sewage pipeline is utilized to discharge outside a hole, a sewage treatment station is introduced after sedimentation in a sedimentation tank, sewage treatment is carried out, and water systems close to water are discharged after reaching standards, such as flushing and greening.
S2, setting an independent water collecting ditch for the downhill drainage tunnel, separating clean water from sewage for downhill drainage, detecting clean water through a hole adjusting tank, directly utilizing or discharging adjacent water systems, precipitating sewage through a sedimentation tank, and discharging after the sewage reaches the standard after the sewage is treated by a sewage treatment station.
S3, a sewage bin and a clear water bin are arranged after a distance is constructed in the reverse slope drainage tunnel, independent water collecting ditches are arranged, clear water and sewage are independently put into the bin, the clear water is discharged out of a hole through a submersible pump and a sewage pump which are arranged in the water bin, clear water can be directly utilized or discharged to be adjacent to the water system through detection of a hole adjusting tank, and the sewage is precipitated in a precipitation tank and discharged after reaching the standard through treatment of a sewage treatment station.
Claims (2)
1. A construction method of a tunnel dirt-removing and flow-dividing construction structure is characterized by comprising the following steps: the tunnel sewage disposal diversion comprises three structural situations of a sewage disposal diversion downhill drainage structure, a sewage disposal diversion reverse-slope drainage structure and a sewage disposal diversion inclined shaft drainage structure;
the sewage-cleaning diversion downhill drainage structure comprises a clear water discharge ditch (1), a waste water discharge ditch (2), a waste water fixed pump station (3) and a clear water fixed pump station (4); the clean water discharge ditches (1) are arranged at two sides of the waste water discharge ditches (2) and are distributed along the downhill direction, and the waste water fixed pump station (3) and the clean water fixed pump station (4) are arranged at the upstream of the downhill direction; the clear water fixed pump station (4) is communicated with the clear water discharge ditch (1) through a steel pipe; the waste water fixing pump station (3) is communicated with the waste water discharge ditch (2) through a steel pipe;
the sewage-cleaning diversion reverse-slope drainage structure comprises a clean water drainage ditch (1), a waste water drainage ditch (2), a waste water fixed pump station (3), a clean water fixed pump station (4), a water collecting pit (5) and a waste water mobile pump station (6); the clean water discharge ditches (1) are arranged at two sides of the waste water discharge ditches (2) and are distributed along the reverse slope direction, the number of the clean water fixed pump stations (4) is two, and the waste water fixed pump stations (3) and the first clean water fixed pump station (4) are arranged at the downstream of the reverse slope; the first clean water fixed pump station (4) is communicated with the clean water discharge ditch (1) through a steel pipe; the waste water fixing pump station (3) is communicated with the waste water discharge ditch (2) through a steel pipe; a water collecting pit (5) is arranged at the end part of the clean water discharge ditch (1) communicated with the transverse channel; the second clean water fixed pump station (4) is communicated with the water collecting pit (5) through a steel pipe; a wastewater mobile pump station (6) is arranged at the tunnel face at the upstream of the counter slope, and the wastewater mobile pump station (6) is communicated with a wastewater fixed pump station (3) through a steel pipe;
the sewage-cleaning and flow-dividing inclined shaft drainage structure comprises a clear water drainage ditch (1), a waste water drainage ditch (2), a waste water fixed pump station (3) and a clear water fixed pump station (4); the three groups of wastewater fixing pump stations (3) and clear water fixing pump stations (4) are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch (1) and the wastewater discharge ditch (2) are respectively arranged at two sides of the drainage direction of the inclined shaft; the clear water fixed pump station (4) is communicated with the clear water discharge ditch (1) through a steel pipe; the waste water fixing pump station (3) is communicated with the waste water discharge ditch (2) through a steel pipe;
the construction method of the tunnel sewage-cleaning and diversion construction structure comprises the following steps that S1, a temporary water collecting tank is arranged on a tunnel face in construction, construction wastewater of the tunnel face is collected, a special sewage pipeline is utilized to be discharged outside a hole, a sedimentation tank is utilized to sediment, and then the sewage is introduced into a sewage treatment station for sewage treatment, and flushing and greening emission are carried out after reaching standards;
s2, arranging an independent water collecting ditch for a downhill drainage tunnel, separating clean water from sewage for downhill drainage, detecting the clean water by a hole adjusting tank, directly utilizing or discharging adjacent water systems without pollution, and discharging the sewage after reaching the standard after sedimentation by a sedimentation tank and treatment by a sewage treatment station;
s3, a sewage bin and a clear water bin are arranged after a distance is constructed in the reverse slope drainage tunnel, independent water collecting ditches are arranged, clear water and sewage are independently put into the bin, the submersible pump and the sewage pump which are arranged through the water bin and the clear water and sewage pipeline are discharged outside the tunnel, the clear water is directly utilized or discharged to be close to the water system through the detection of the tunnel opening regulating tank, and the sewage is deposited by the sedimentation tank and discharged after reaching the standard through the treatment of the sewage treatment station.
2. The construction method of the tunnel sewage-cleaning and diversion construction structure according to claim 1, wherein the construction method comprises the following steps: in the sewage-cleaning and diversion inclined shaft drainage structure, a drain hole is formed in an inclined shaft lining, clear water in the inclined shaft is led into a clear water discharge ditch (1) through the drain hole, and a composite lining is arranged at a concentrated water-gushing section of the inclined shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111315264.2A CN114109395B (en) | 2021-11-08 | 2021-11-08 | Tunnel dirt-cleaning and flow-dividing construction method and structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111315264.2A CN114109395B (en) | 2021-11-08 | 2021-11-08 | Tunnel dirt-cleaning and flow-dividing construction method and structure |
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| CN114109395A CN114109395A (en) | 2022-03-01 |
| CN114109395B true CN114109395B (en) | 2023-07-25 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208089343U (en) * | 2018-03-14 | 2018-11-13 | 中国水利水电第十四工程局有限公司 | railway single tunnel counter-slope drainage system |
| CN109763859B (en) * | 2018-10-29 | 2021-02-26 | 中铁二院工程集团有限责任公司 | Method for removing dirt and shunting tunnel construction wastewater of double-track railway crosshole |
| CN109611148B (en) * | 2018-10-29 | 2021-02-05 | 中铁二院工程集团有限责任公司 | Method for removing dirt and shunting tunnel construction wastewater of single-track railway crosshole |
| CN216240796U (en) * | 2021-11-08 | 2022-04-08 | 中铁十八局集团有限公司 | Tunnel construction structure of shunting of decontaminating |
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