CN112523802A - Prefabricated separation side formula ditch inspection shaft of decontaminating and apron - Google Patents

Prefabricated separation side formula ditch inspection shaft of decontaminating and apron Download PDF

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Publication number
CN112523802A
CN112523802A CN202011333213.8A CN202011333213A CN112523802A CN 112523802 A CN112523802 A CN 112523802A CN 202011333213 A CN202011333213 A CN 202011333213A CN 112523802 A CN112523802 A CN 112523802A
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CN
China
Prior art keywords
tunnel
inspection
inspection well
cover plate
ditch
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Pending
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CN202011333213.8A
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Chinese (zh)
Inventor
张建安
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Priority to CN202011333213.8A priority Critical patent/CN112523802A/en
Publication of CN112523802A publication Critical patent/CN112523802A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F16/00Drainage
    • E21F16/02Drainage 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)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention belongs to the technical field of tunnels and underground engineering, and particularly relates to a prefabricated dirt-removing separated side type ditch inspection well and a cover plate. The invention has the advantages that the size of the lower part of the side type ditch inspection well can meet the drainage requirement of different underground water seepage quantities, the inspection well mouth does not occupy the width of a lane, the passing of tunnel vehicles is not influenced during the inspection, the cover plate of the inspection well has the independent pollution discharge function, and the environmental protection requirement of the tunnel drainage pollution cleaning separation is met.

Description

Prefabricated separation side formula ditch inspection shaft of decontaminating and apron
Technical Field
The invention belongs to the technical field of tunnels and underground engineering, and particularly relates to a prefabricated dirt-removing separated side type ditch inspection well and a cover plate which do not occupy the width of a lane in a tunnel.
Background
The tunnel drainage system is an important component in tunnel engineering, and according to the current requirements of tunnel design specifications, a longitudinal drainage system is preferably arranged in a tunnel according to the principle of separating and discharging underground water, operation cleaning sewage and fire-fighting sewage. The existing tunnel is provided with a roadside gutter to discharge sewage, and a central or side type drainage blind ditch is arranged to discharge underground water seepage, but the following problems exist for a long time: 1. the central blind ditch for removing underground water is usually arranged in the range of a traffic lane, and a pavement layer structure needs to be broken to seal the traffic lane during maintenance, so that the traffic of tunnel vehicles is greatly influenced; 2. when the side type blind ditch for removing underground seepage and the sewage discharge side ditch are respectively and independently arranged on the same side of a road, the blind ditch overhauling well head and the cover plate occupy large space, and the driving width of an outermost lane is also occupied during overhauling, so that the vehicle passing is influenced.
Disclosure of Invention
The invention aims to provide a prefabricated sewage-cleaning separation side type ditch inspection well and a cover plate which do not occupy the width of a lane, and solve the problem that the drainage blind ditch inspection well occupies the width of the lane and influences the passing of tunnel vehicles during maintenance under the condition of meeting the environment-friendly requirement of sewage cleaning separation.
The realization of the invention is completed by the following technical scheme:
the utility model provides a prefabricated separation side formula ditch inspection shaft and apron of decontaminating, tunnel roadside access way is established to the tunnel lane outside, its characterized in that tunnel lane below is arranged in to inspection shaft portion distribution, hugs closely tunnel roadside access way setting, and the inspection well head sets up in one side on inspection shaft upper portion, and the inspection shaft lower part is established horizontal aqueduct and is collected infiltration underground, and inspection well apron and inspection well head are pasted tightly closed, and inspection well cover board upper surface forms the recess, leads to long blowdown side ditch with the tunnel roadside and is in the same direction as connecing, do the blowdown side ditch concurrently, and inspection well head and inspection well cover board equipartition are arranged in tunnel lane outside to the width.
Further, establish U-shaped well head wall edge above the inspection shaft, the opening that U-shaped well head wall edge is followed is towards tunnel roadside access way, U-shaped well head wall edge and tunnel roadside access way lateral wall between form the inspection shaft mouth, the U-shaped slot is established to the upper surface of inspection shaft apron one side, and the lateral surface of U-shaped slot one side lateral wall is hugged closely with tunnel roadside access way side, and this side lateral wall bottom of U-shaped recess is hugged closely with inspection shaft outside lateral wall top, inspection shaft apron opposite side is horizontal apron, and with the U-shaped well head wall edge of inspection shaft top match, imbeds in the U-shaped well head wall edge opening of inspection shaft top.
Furthermore, the inspection well cover plate and the inspection well are prefabricated parts, and the prefabricated parts are installed in place at one time during construction, so that the construction efficiency can be improved.
And furthermore, a water guide pipe hole is reserved in the lower part of the side wall of the prefabricated inspection well, which faces the side of the tunnel, of the access road, and the water guide pipe hole is connected with a longitudinal water discharge pipe in the side wall of the tunnel through a transverse water guide pipe.
A construction method for prefabricating a cleaning separation side type ditch inspection well and a cover plate is characterized by comprising the following steps:
after the tunnel lining and the inverted arch are backfilled to the bottom elevation of the blind ditch of the inspection well, the prefabricated inspection well is installed in place at one time, the water passing section at the lower part of the prefabricated inspection well is communicated with the underground water drainage blind ditch arranged on the whole line of the side of the tunnel to form an integral clear water blind ditch, and the reserved water guide pipe hole is communicated with the longitudinal water drainage pipe through a transverse water guide pipe and is used for guiding and draining the underground water collected by the longitudinal water drainage pipe; the gap between the transverse water guide pipe and the hole of the water guide pipe is filled and sealed by waterproof mortar; the inspection shaft is arranged on the inspection shaft cover plate after the inspection shaft is in place, a U-shaped shaft opening wall edge is arranged above the inspection shaft, a notch is formed in the U-shaped shaft opening wall edge on the inner side, the inspection shaft cover plate and the U-shaped shaft opening wall are attached and closed along the inner side notch, and a U-shaped groove in the inspection shaft cover plate is connected with a tunnel roadside sewage discharge side ditch simultaneously and used for leading and discharging sewage in the tunnel.
The inspection well mouth and the cover plate are uniformly distributed in the lateral width outside the lane, so that the width of the lane is not occupied, and the lane does not need to be closed during maintenance. The inspection shaft apron does not occupy the lane width, can cover the inspection well head completely, and the blowdown groove size is the same with full line blowdown gutter, has guaranteed lining up of tunnel full line blowdown gutter, and the underground infiltration in isolated roadside sewage and the side formula ditch simultaneously reaches the effect of the separation of decontaminating.
The invention has the advantages that: the underground infiltration is collected through horizontal aqueduct to side formula ditch inspection shaft lower part, it designs according to the stratum gushing water volume that the tunnel is located to cross the water section, can satisfy the drainage function demand of different underground infiltration volume, its inspection well head and inspection shaft apron do not occupy the lane width, need not to seal the lane during maintenance, it is current not to influence tunnel vehicle, the inspection well lid board has blowdown side ditch function concurrently, the link up of tunnel full-line blowdown side ditch has been guaranteed, simultaneously isolated roadside sewage and the groundwater in the side formula ditch, reach the effect of the separation of decontaminating, satisfy the environmental protection demand of the separation of tunnel drainage decontamination, inspection shaft and apron are prefabricated component, can once only construct the installation and target in place, the efficiency of construction is high.
Drawings
FIG. 1 is a cross-sectional view of a prefabricated side-type ditch inspection well and a special-shaped inspection well cover plate which is also used as a sewage drainage side ditch.
FIG. 2 is a plan view of a prefabricated special-shaped manhole cover plate which is also used as a sewage drainage side ditch.
FIG. 3 is a top view of a prefabricated lateral ditch manhole.
FIG. 4 is a sectional view of a prefabricated lateral ditch manhole.
Description of the labeling: 1-inspection well cover plate; 2, prefabricating an inspection well; 3, inspecting the wellhead of the well; 4-tunnel lane; 5-tunnel roadside maintenance road; 6-transverse aqueduct; 7-tunnel longitudinal drain pipe; and 8, reserving a water guide pipe hole in the inspection well.
Detailed Description
The features and other related features of the present invention are described in further detail below in the detailed description of the invention and in conjunction with the following figures to provide an understanding of those skilled in the art.
Referring to fig. 1-4, a prefabricated sewage disposal separating side type ditch inspection well and cover plate without occupying the width of a lane in a tunnel comprises a prefabricated inspection well 2 and a prefabricated special-shaped inspection well cover plate 1 which is also used as a sewage disposal side ditch.
Tunnel roadside access roads 5 are established in the 4 outsides of tunnel lane, prefabricated inspection shaft 2 arranges in tunnel lane 4 below, hugs closely tunnel roadside access roads 5 and sets up, and inspection shaft well head 3 sets up between tunnel lane and tunnel roadside access roads, and horizontal aqueduct 6 collection secret infiltration is established to prefabricated inspection shaft 2 lower parts, and inspection shaft apron and inspection shaft well head are hugged closely closed, and inspection shaft apron upper surface forms the recess, does the blowdown side ditch concurrently. The size of the lower water passing section of the prefabricated inspection well 2 is the same as that of a drainage blind ditch arranged on the side of the tunnel road in the through length.
Establish U-shaped well head wall edge above 2 prefabricated inspection wells, the opening on U-shaped well head wall edge is towards tunnel roadside access way, U-shaped well head wall edge and tunnel roadside access way lateral wall between form inspection well head 3, the U-shaped slot is established to the upper surface of inspection well apron 1 one side, and the lateral surface of U-shaped slot one side lateral wall is hugged closely with 5 sides of tunnel roadside access way, and this side lateral wall bottom of U-shaped recess is hugged closely with inspection well outside lateral wall top, 1 opposite side of inspection well apron is horizontal apron, and along cooperating with the U-shaped well head wall of inspection well top, imbeds the U-shaped well head wall of inspection well top is along in the opening. The lower portion of the side wall of the prefabricated inspection well 2 facing the tunnel-side access road is reserved with a water guide pipe hole 8, a transverse water guide pipe 6 is connected with the water guide pipe hole 8, and the water guide pipe hole 8 is connected with a longitudinal water discharge pipe 7 in the tunnel side wall through the transverse water guide pipe 6.
The size of the drainage section at the lower part of the inspection well is determined according to the water inflow of the tunnel stratum and is the same as that of the full-line full-length drainage blind ditch of the tunnel, and the transverse width of the well mouth 3 is not more than the outer lateral width of the designed lane of the tunnel. The blowdown section of inspection shaft apron 1 calculates according to tunnel sewage emission and is the same with tunnel full-line blowdown side ditch size, and preferably the U type is convenient for wash, and the transverse width and the 3 size matching designs of well head of inspection shaft apron 1 are not more than tunnel design lane lateral width.
After the tunnel lining and the inverted arch are backfilled to the bottom elevation of the blind ditch of the inspection well, the prefabricated inspection well 2 is installed in place at one time, the size of the water passing section at the lower part of the prefabricated inspection well 2 is the same as that of the underground water drainage blind ditch arranged on the whole line of the side of the tunnel and is communicated with the underground water drainage blind ditch to form an integral clear water blind ditch, a reserved water guide pipe hole 8 is communicated with a longitudinal water drainage pipe 7 through a transverse water guide pipe 6 and is used for guiding and draining the underground water collected by the longitudinal water drainage pipe 7, and the gap between the water guide pipe 6 and; the inspection well cover plate 1 is installed at one time after the inspection well 2 is in place, a notch is formed in the inner side of the U-shaped well mouth wall above the prefabricated inspection well 2 and is tightly attached to the inspection well cover plate 1 in a closed mode, and the inspection well cover plate 1 is connected with a tunnel roadside sewage discharge side ditch at the same time and used for guiding and discharging sewage in a tunnel.
Among the above-mentioned technical scheme, prefabricated separation side formula ditch inspection shaft of decontaminating and apron can guarantee the separation of the clear water sewage of full line tunnel and link up the emission demand, and especially sewage volume is big in the tunnel of growing up, can discharge alone and concentrate the purification, reuse, and environmental benefit is obvious. The inspection well cover plate 1 is communicated with the all-line sewage drainage side ditch which is U-shaped and convenient to wash. The inspection shaft lower part is collected infiltration underground through horizontal aqueduct, crosses the water section and according to stratum water inflow reasonable design, satisfies the drainage requirement, and the horizontal width of inspection well head and apron is not more than the outer lateral width in lane simultaneously, when overhauing the escape canal, need not to break the road surface, and does not occupy the lane width, overhauls the convenience. All components are prefabricated, and the construction efficiency is high.

Claims (5)

1. The utility model provides a prefabricated separation side formula ditch inspection shaft and apron of decontaminating, its characterized in that tunnel lane below is arranged in to inspection shaft portion distribution, hug closely the roadside access way setting in the tunnel lane outside, the inspection shaft mouth sets up in one side on inspection shaft upper portion, the inspection shaft lower part is established horizontal aqueduct and is collected infiltration underground, the inspection shaft apron is closed with the inspection shaft mouth is hugged closely, inspection shaft apron upper surface forms the recess, lead to long blowdown side ditch with the tunnel roadside and meet in the same direction as, do the blowdown side ditch concurrently, the inspection shaft mouth is arranged in tunnel lane outside to the width with the inspection shaft apron equipartition.
2. The prefabricated dirt-removing separating side type ditch inspection well and cover plate of claim 1, characterized in that a U-shaped well head wall edge is arranged above the inspection well, the opening of the U-shaped well head wall edge faces the tunnel-side access way, an inspection well head is formed between the U-shaped well head edge and the side wall of the tunnel-side access way, a U-shaped groove is arranged on the upper surface of one side of the inspection well cover plate, the outer side surface of the side wall of one side of the U-shaped groove is tightly attached to the side surface of the tunnel-side access way, the bottom of the side wall of the U-shaped groove is tightly attached to the top of the side wall of the outer side of the inspection well, and a transverse cover plate is arranged on the other side of the inspection well cover plate and matched with the U-shaped well head edge above the inspection well and is embedded into the opening of the U-shaped well head edge above.
3. The prefabricated sewage-disposal separate-side type ditch inspection well and cover plate in a tunnel without occupying the width of a driveway as claimed in claim 1, wherein the inspection well cover plate and the inspection well are both prefabricated members.
4. The prefabricated sewage-cleaning separated side type ditch inspection well and cover plate not occupying the width of a lane in a tunnel according to claim 1, wherein a water guide pipe hole is reserved in the prefabricated inspection well towards the lower part of the side wall of the tunnel side access way, and the water guide pipe hole is connected with a longitudinal water drainage pipe in the side wall of the tunnel through a transverse water guide pipe.
5. A construction method for prefabricating a cleaning separation side type ditch inspection well and a cover plate is characterized by comprising the following steps: after the tunnel lining and the inverted arch are backfilled to the bottom elevation of the blind ditch of the inspection well, the prefabricated inspection well is installed in place at one time, the water passing section at the lower part of the prefabricated inspection well is communicated with the underground water drainage blind ditch arranged on the whole line of the side of the tunnel to form an integral clear water blind ditch, and the reserved water guide pipe hole is communicated with the longitudinal water drainage pipe through a transverse water guide pipe and is used for guiding and draining the underground water collected by the longitudinal water drainage pipe; the gap between the transverse water guide pipe and the hole of the water guide pipe is filled and sealed by waterproof mortar; the inspection shaft is arranged on the inspection shaft cover plate after the inspection shaft is in place, a U-shaped shaft opening wall edge is arranged above the inspection shaft, a notch is formed in the U-shaped shaft opening wall edge on the inner side, the inspection shaft cover plate and the U-shaped shaft opening wall are attached and closed along the inner side notch, and a U-shaped groove in the inspection shaft cover plate is connected with a tunnel roadside sewage discharge side ditch simultaneously and used for leading and discharging sewage in the tunnel.
CN202011333213.8A 2020-11-24 2020-11-24 Prefabricated separation side formula ditch inspection shaft of decontaminating and apron Pending CN112523802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011333213.8A CN112523802A (en) 2020-11-24 2020-11-24 Prefabricated separation side formula ditch inspection shaft of decontaminating and apron

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Application Number Priority Date Filing Date Title
CN202011333213.8A CN112523802A (en) 2020-11-24 2020-11-24 Prefabricated separation side formula ditch inspection shaft of decontaminating and apron

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CN112523802A true CN112523802A (en) 2021-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114411578A (en) * 2022-02-18 2022-04-29 济南市市政工程设计研究院(集团)有限责任公司 Box culvert structure for underpass railway and construction method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
DE202011052123U1 (en) * 2011-11-28 2012-01-16 Aco Severin Ahlmann Gmbh & Co. Kg Drainage shaft for a tunnel
CN207109997U (en) * 2017-08-17 2018-03-16 四川省交通运输厅公路规划勘察设计研究院 Tunneled central gutter nondestructive inspection (NDI) construction
CN208073552U (en) * 2018-04-19 2018-11-09 四川省交通运输厅公路规划勘察设计研究院 tunnel drainage structure
CN208310807U (en) * 2017-12-27 2019-01-01 中铁二院工程集团有限责任公司 A kind of single-track railway floor type lining structure using refuge chamber setting inspection shaft
CN111005759A (en) * 2019-12-04 2020-04-14 中交第二公路勘察设计研究院有限公司 Super long tunnel separation drainage structures of decontaminating suitable for cold areas
CN210599103U (en) * 2019-08-30 2020-05-22 中交第二公路勘察设计研究院有限公司 Satisfy high environmental requirement's tunnel separation escape canal of decontaminating

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
DE202011052123U1 (en) * 2011-11-28 2012-01-16 Aco Severin Ahlmann Gmbh & Co. Kg Drainage shaft for a tunnel
CN207109997U (en) * 2017-08-17 2018-03-16 四川省交通运输厅公路规划勘察设计研究院 Tunneled central gutter nondestructive inspection (NDI) construction
CN208310807U (en) * 2017-12-27 2019-01-01 中铁二院工程集团有限责任公司 A kind of single-track railway floor type lining structure using refuge chamber setting inspection shaft
CN208073552U (en) * 2018-04-19 2018-11-09 四川省交通运输厅公路规划勘察设计研究院 tunnel drainage structure
CN210599103U (en) * 2019-08-30 2020-05-22 中交第二公路勘察设计研究院有限公司 Satisfy high environmental requirement's tunnel separation escape canal of decontaminating
CN111005759A (en) * 2019-12-04 2020-04-14 中交第二公路勘察设计研究院有限公司 Super long tunnel separation drainage structures of decontaminating suitable for cold areas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114411578A (en) * 2022-02-18 2022-04-29 济南市市政工程设计研究院(集团)有限责任公司 Box culvert structure for underpass railway and construction method
CN114411578B (en) * 2022-02-18 2023-08-22 济南市市政工程设计研究院(集团)有限责任公司 Box culvert structure of underpass railway and construction method

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