CN216240796U - Tunnel construction structure of shunting of decontaminating - Google Patents
Tunnel construction structure of shunting of decontaminating Download PDFInfo
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- CN216240796U CN216240796U CN202122715253.5U CN202122715253U CN216240796U CN 216240796 U CN216240796 U CN 216240796U CN 202122715253 U CN202122715253 U CN 202122715253U CN 216240796 U CN216240796 U CN 216240796U
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Abstract
The utility model discloses a tunnel sewage disposal diversion construction structure, which comprises three structural situations of a sewage disposal diversion downslope drainage structure, a sewage disposal diversion upslope drainage structure and a sewage disposal diversion inclined shaft drainage structure. The sewage disposal diversion downslope drainage structure comprises a clear water discharge ditch, a waste water fixing pump station and a clear water fixing pump station; the sewage-cleaning flow-dividing counter-slope drainage structure also comprises a water collecting pit and a wastewater moving pump station; the sewage disposal diversion 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 drainage direction of the inclined shaft. The structure 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 performance and the like in tunnel construction.
Description
Technical Field
The utility model belongs to the technical field of tunnel construction, and particularly relates to a construction structure for an environment-friendly water conservation guarantee measure in an ecologically fragile area.
Background
In recent years, with the acceleration of engineering construction in China, the number of tunnels and underground engineering construction projects is increasing, and the general trend of tunnel engineering development is that tunnels, such as railways, highways and subways, are large in number, large in length, large in buried depth and large in cross section. In the whole life cycle of tunnel construction and operation, drainage guarantee is a key index, and particularly in the construction stage, construction waste water, surrounding rock water seepage and water burst restrict the civilized construction of the tunnel, the high-quality construction level is influenced, and the environment, ecological protection and the like at the periphery of the tunnel are also seriously influenced by the discharge of the construction waste water and the surrounding rock water seepage.
The traditional three-level and four-level precipitation can not meet the increasing environmental protection requirement, especially the requirements of environmental protection and water and soil conservation in part of ecologically fragile areas are higher, and the construction cost of the tunnel is also restricted by the requirement of sewage treatment capacity on the premise of carrying out construction sewage treatment in a construction sewage treatment station, so that the construction process suitable for the environmental protection in the ecologically fragile areas is of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to design a tunnel sewage disposal and diversion 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 utility model is a tunnel sewage disposal diversion construction structure, which comprises three structural situations of a sewage disposal diversion downslope drainage structure, a sewage disposal diversion upslope drainage structure and a sewage disposal diversion inclined shaft drainage structure.
The sewage disposal diversion downslope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixing pump station 3 and a clear water fixing pump station 4; the clear water discharge ditch 1 is arranged at two sides of the waste water discharge ditch 2 and is arranged along the downslope direction, and the waste water fixed pump station 3 and the clear water fixed pump station 4 are arranged at the upstream of the downslope. The clear water fixed pump station 4 is communicated with the clear water discharge ditch 1 through a steel pipe; the waste water fixed pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
The sewage disposal diversion counter-slope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixing pump station 3, a clear water fixing pump station 4, a water collection pit 5 and a waste water moving pump station 6; the clean water discharge ditch 1 is arranged at two sides of the waste water discharge ditch 2 and is distributed along the reverse slope direction, the number of the clean water fixed pump stations 4 is two, and the waste water fixed pump station 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 waste water fixed 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 clear water discharging ditch 1 communicated with the transverse channel; the second clear water fixed pump station 4 is communicated with the sump 5 through a steel pipe; and a waste water movable pump station 6 is arranged on the tunnel face at the upstream of the reverse slope, and the waste water movable pump station 6 is communicated with the waste water fixed pump station 3 through a steel pipe.
The sewage disposal diversion inclined shaft drainage structure comprises a clear water drainage ditch 1, a waste water drainage ditch 2, a waste water fixing pump station 3 and a clear water fixing pump station 4; the three groups of waste water fixed pump stations 3 and the clear water fixed pump stations 4 are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch 1 and the waste water 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 fixed pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
In the sewage disposal diversion inclined shaft drainage structure, a drain hole is arranged on the inclined shaft lining, clean water in the inclined shaft is led to a clean water discharge ditch 1 through the drain hole, and a composite lining is arranged at the centralized water burst section of the inclined shaft.
S1, arranging a temporary water collecting tank on a tunnel face during construction, collecting construction wastewater of the tunnel face, discharging the construction wastewater out of a tunnel by using a specially-arranged sewage pipeline, precipitating the construction wastewater by using a sedimentation tank, introducing the construction wastewater into a sewage treatment station, treating the construction wastewater, and flushing and greening after the construction wastewater reaches the standard.
S2, arranging an independent water collecting ditch for the down-slope drainage tunnel, separately discharging clean water and sewage in a down-slope manner, directly utilizing the clean water without pollution or discharging the clean water to a near water system after the clean water is detected to be pollution-free by a tunnel opening regulating reservoir, and discharging the sewage after the sewage is precipitated by a sedimentation tank and treated by a sewage treatment station to reach the standard.
S3, constructing a reverse slope drainage tunnel, arranging a sewage bin and a clean water bin after a certain distance, arranging an independent water collecting ditch, independently putting clean water and sewage into the tunnel, discharging the clean water and the sewage out of the tunnel through a submersible pump, a sewage pump, a clean water pipeline and a sewage pipeline which are arranged in the water bin, directly utilizing or discharging the clean water close to a water system when the clean water is detected to be pollution-free by a tunnel opening regulating tank, and discharging the sewage after the sewage is precipitated by a sedimentation tank and treated by a sewage treatment station to reach the standard.
The technological process of the utility model is the split discharge of clear water and sewage. The structure discharges construction wastewater and primary branch seepage water containing chemical agents at an unlined section in a tunnel construction stage, and the construction wastewater and the primary branch seepage water enter a sewage treatment station after being precipitated and are discharged after reaching standards; and introducing water burst on the tunnel face and water seepage on the lining section into clear water, discharging the water out of the tunnel into an adjusting tank, and directly discharging the water into an adjacent water system according to conditions. The drainage is discharged according to the principle of cleaning and shunting, the groundwater seepage of the tunnel face excavation section, the primary support and the unfinished section of the two lining side ditches, the scattered drainage of the construction road surface in the hole, the construction wastewater and the like are sewage, and the drainage at the back of the lining finished section is clean water. In the construction stage, sewage is collected and discharged to a sewage treatment station outside the tunnel, the sewage is treated to reach the standard and then discharged, and clean water is collected, wherein one part of the clean water is used for production water, and the other part of the clean water is directly discharged outside the tunnel. The ditches at two sides of the main tunnel, the flat guide blind ditches and the open ditches at the opposite sides are used as clear ditches, and clear water flowing into the side facing the surrounding rocks is collected as much as possible; and water tanks beside the main tunnel central ditch and the auxiliary gallery blind ditch are used as wastewater ditches to discharge wastewater.
Drawings
FIG. 1 is a schematic view of a sewage disposal flow-dividing downslope drainage.
FIG. 2 is a schematic view of the sewage diversion reverse slope drainage.
FIG. 3 is a schematic diagram of drainage from a clean-up diversion slant well.
Detailed Description
The following detailed description of the present invention is made with reference to the accompanying drawings and examples.
The utility model provides a tunnel branch of decontaminating construction structures, tunnel branch of decontaminating include three kinds of structural situations of branch of decontaminating downslope drainage structures, branch of decontaminating adverse slope drainage structures and branch of decontaminating inclined shaft drainage structures.
The sewage disposal diversion downslope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixing pump station 3 and a clear water fixing pump station 4; the clear water discharge ditch 1 is arranged at two sides of the waste water discharge ditch 2 and is arranged along the downslope direction, and the waste water fixed pump station 3 and the clear water fixed pump station 4 are arranged at the upstream of the downslope. The clear water fixed pump station 4 is communicated with the clear water discharge ditch 1 through a steel pipe; the waste water fixed pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
The sewage disposal diversion counter-slope drainage structure comprises a clear water discharge ditch 1, a waste water discharge ditch 2, a waste water fixing pump station 3, a clear water fixing pump station 4, a water collection pit 5 and a waste water moving pump station 6; the clean water discharge ditch 1 is arranged at two sides of the waste water discharge ditch 2 and is distributed along the reverse slope direction, the number of the clean water fixed pump stations 4 is two, and the waste water fixed pump station 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 waste water fixed 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 clear water discharging ditch 1 communicated with the transverse channel; the second clear water fixed pump station 4 is communicated with the sump 5 through a steel pipe; and a waste water movable pump station 6 is arranged on the tunnel face at the upstream of the reverse slope, and the waste water movable pump station 6 is communicated with the waste water fixed pump station 3 through a steel pipe.
The sewage disposal diversion inclined shaft drainage structure comprises a clear water drainage ditch 1, a waste water drainage ditch 2, a waste water fixing pump station 3 and a clear water fixing pump station 4; the three groups of waste water fixed pump stations 3 and the clear water fixed pump stations 4 are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch 1 and the waste water 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 fixed pump station 3 is communicated with the waste water discharge ditch 2 through a steel pipe.
In the sewage disposal diversion inclined shaft drainage structure, a drain hole is arranged on the inclined shaft lining, clean water in the inclined shaft is led to a clean water discharge ditch 1 through the drain hole, and a composite lining is arranged at the centralized water burst section of the inclined shaft.
In the fixed pump station 3 of waste water, the fixed pump station 4 of clear water, should strictly forbid sewage and discharge into the clear water ditch during the construction, clear water discharges the ditch and takes covering measures with sump pit etc. and avoids sewage splash into. The auxiliary gallery annular blind pipes are all temporarily connected into temporary clear water ditches, and the clear water open ditches are concrete ditches and provided with connecting reinforcing steel bars.
The water pumping equipment meets the basic requirements of drainage of each work area and is divided into a working group and a standby group.
The tunnel sewage-cleaning flow-dividing drainage is divided into main tunnel drainage, horizontal guide down-slope drainage and reverse-slope drainage, and inclined shaft drainage.
Adopting a ditch to naturally drain water along the slope: the main tunnel and the horizontal clear water are directly discharged out of the tunnel from the clear water ditch, and the sewage is collected by the sewage ditch and discharged out of the tunnel for treatment, as shown in figure 1.
The reverse slope adopts sump pit and small-size automatic water pump station, through check valve + reverse slope drainage pump drainage to fixed pump station after discharge outside the hole again: the clean water in the main tunnel is collected to the clean water pump station in the main tunnel at all levels by the clean water ditch outside the lining section, the clean water ditch inside the main tunnel is led to the clean water ditch in the flat guide or the clean water pump station in the main tunnel, and the water in the pump station is pumped and discharged to the clean water discharge ditch in the slope section in a side wall hanging pipe mode and directly discharged outside the tunnel. The main tunnel sewage is collected to the tunnel face from the central ditch, lifted to a main tunnel sewage pump station by a water pump, pumped and discharged to a down-slope sewage discharge ditch in a side wall hanging pipe 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 from the clear water ditch, the flat guide sewage is collected to the flat guide palm surface from the sewage ditch, the flat guide sewage is lifted to a flat guide sewage pump station by a water pump, and the flat guide sewage pump station is respectively pumped and discharged to a clean sewage ditch at the downslope section by the pump station through a side wall hanging pipe, as shown in figure 2.
Clear water and sewage of the inclined shaft, clear water and sewage in the front hole are respectively collected in a clear water pump station and a sewage pump station at the bottom of the inclined shaft, and are pumped and discharged out of the inclined shaft through the clear water pump stations and the sewage pump stations at all levels in the inclined shaft, wherein the sewage needs to be treated outside the inclined shaft, as shown in figure 3.
The size (length multiplied by width multiplied by depth) of a sump 5 of the sewage-cleaning shunting adverse slope drainage structure is 1.2m multiplied by 0.6m, and the interception drainage is carried out on the water outlet of the tunnel face and the construction abandoned water.
In the clear water discharge ditch 1 and the waste water discharge ditch 2, a transverse intercepting ditch (with the width of 0.3m) and a water collecting pit are arranged at the bottom laying section of the inclined shaft after construction according to the actual situation, the size (with the length multiplied by the width multiplied by the depth) is 1.2m multiplied by 0.6m, and the water discharged from the bottom laying surface is intercepted and guided to discharge.
In the clear water discharge ditch 1 and the waste water discharge ditch 2, double-side drainage ditches are laid at the bottom, the left side drainage ditch has the size (width is multiplied by 20 cm) of 35cm multiplied by 20cm, and the right side drainage ditch has the size (width is multiplied by 15 cm) multiplied by 15cm, and drainage is carried out on the water discharged from the arch part and the side wall of the supported section.
Examples
The tunnel drainage general scheme is four stages, in the actual construction, the down slope and the reverse slope are used for drainage, the down slope construction section naturally drains water, only a temporary water collecting pit is arranged on the tunnel face or the inverted arch construction section, and a sewage pump is arranged to pump and drain the water to the inverted arch side ditch and naturally flows out; in the reverse slope construction section, besides installing sewage pumps on the tunnel face and the inverted arch construction section, one-stage or multi-stage relay pump stations are installed in stages according to the on-site pumping and drainage requirements to discharge sewage and clean water to the planned position. The arch wall lining finishing section is used as clear water for pumping and discharging; the flowing water from the excavation surface to the area between the lining operation trolleys is used as sewage for pumping, and the clear water, the sewage pump and the pipeline are separately arranged and respectively pumped and drained.
Claims (2)
1. The utility model provides a tunnel construction structures of shunting of decontaminating which characterized in that: the tunnel sewage disposal shunt comprises three structural situations of a sewage disposal shunt downslope drainage structure, a sewage disposal shunt reverse slope drainage structure and a sewage disposal shunt inclined shaft drainage structure;
the sewage disposal diversion downslope drainage structure comprises a clear water discharge ditch (1), a waste water discharge ditch (2), a waste water fixing pump station (3) and a clear water fixing pump station (4); the clean water discharge ditch (1) is arranged at two sides of the waste water discharge ditch (2) and is arranged along the down slope direction, and the waste water fixed pump station (3) and the clean water fixed pump station (4) are arranged at the upstream of the down slope; the clear water fixed pump station (4) is communicated with the clear water discharge ditch (1) through a steel pipe; the waste water fixed pump station (3) is communicated with the waste water discharge ditch (2) through a steel pipe;
the sewage disposal diversion counter-slope drainage structure comprises a clear water drainage ditch (1), a waste water drainage ditch (2), a waste water fixed pump station (3), a clear water fixed pump station (4), a sump (5) and a waste water movable pump station (6); the clear water discharge ditch (1) is arranged at two sides of the waste water discharge ditch (2) and is arranged along the reverse slope direction, the number of clear water fixed pump stations (4) is two, and the waste water fixed pump station (3) and the first clear 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 waste water fixed 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 clear water discharge ditch (1) communicated with the transverse channel; the second clear water fixed pump station (4) is communicated with the sump (5) through a steel pipe; a waste water moving pump station (6) is arranged on the tunnel face at the upstream of the reverse slope, and the waste water moving pump station (6) is communicated with the waste water fixed pump station (3) through a steel pipe;
the sewage disposal diversion inclined shaft drainage structure comprises a clear water drainage ditch (1), a waste water drainage ditch (2), a waste water fixing pump station (3) and a clear water fixing pump station (4); the three groups of waste water fixed pump stations (3) and the clear water fixed pump stations (4) are sequentially arranged along the drainage direction of the inclined shaft, and the clear water discharge ditch (1) and the waste water discharge ditch (2) are respectively arranged on 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 fixed pump station (3) is communicated with the waste water discharge ditch (2) through a steel pipe.
2. The tunnel construction structure of shunting of decontaminating of claim 1, characterized by that: in the sewage disposal diversion inclined shaft drainage structure, a drain hole is formed in the lining of the inclined shaft, clear water in the inclined shaft is led to a clear water discharge ditch (1) through the drain hole, and a composite lining is arranged at the centralized water burst section of the inclined shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122715253.5U CN216240796U (en) | 2021-11-08 | 2021-11-08 | Tunnel construction structure of shunting of decontaminating |
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| CN202122715253.5U CN216240796U (en) | 2021-11-08 | 2021-11-08 | Tunnel construction structure of shunting of decontaminating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109395A (en) * | 2021-11-08 | 2022-03-01 | 中铁十八局集团有限公司 | Tunnel decontamination and diversion construction method and structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109395A (en) * | 2021-11-08 | 2022-03-01 | 中铁十八局集团有限公司 | Tunnel decontamination and diversion construction method and structure |
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