CN113623002A - Flood disaster early warning system and method for subway station hall and tunnel - Google Patents

Flood disaster early warning system and method for subway station hall and tunnel Download PDF

Info

Publication number
CN113623002A
CN113623002A CN202110891771.4A CN202110891771A CN113623002A CN 113623002 A CN113623002 A CN 113623002A CN 202110891771 A CN202110891771 A CN 202110891771A CN 113623002 A CN113623002 A CN 113623002A
Authority
CN
China
Prior art keywords
water
subway
station
subway station
control room
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110891771.4A
Other languages
Chinese (zh)
Inventor
张磊
李明
张红建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui University of Science and Technology
Original Assignee
Anhui University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui University of Science and Technology filed Critical Anhui University of Science and Technology
Priority to CN202110891771.4A priority Critical patent/CN113623002A/en
Publication of CN113623002A publication Critical patent/CN113623002A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B1/00General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
    • B61B1/02General arrangement of stations and platforms including protection devices for the passengers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/10Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather

Abstract

The flood disaster early warning system comprises a water regime induction system, a water retaining facility, a centralized control room, a subway dispatching center, a subway management department and an emergency management department, wherein the water regime induction system comprises a subway station wind pavilion electronic water gauge, a subway station entrance and exit electronic water gauge, a tunnel track low-point electronic water gauge, a subway station track electronic water gauge, a subway main line entrance and exit electronic water gauge and a subway yard station electronic water gauge, the water retaining facility comprises a subway station entrance and exit water retaining plate, a subway station wind pavilion water retaining plate and a main line entrance water retaining facility, and the centralized control room comprises a subway station centralized control room and an adjacent station centralized control room. The flood disaster early warning system of the invention sets different water level thresholds and alarm signals according to the electronic water gauges installed at different positions, and sends out water condition signals and disposal modes to the centralized control room according to the water condition regulation at different positions.

Description

Flood disaster early warning system and method for subway station hall and tunnel
Technical Field
The invention relates to the field of urban flood disaster early warning, in particular to a system and a method for early warning of flood disasters of a subway station hall and a tunnel.
Background
In the flood disaster early warning field, adopt flood early warning system can avoid the loss of property and casualties that the low-lying department intake leads to, but only be provided with electronic flood gate in subway tunnel through the positions such as reservoir, can lead to the train in operation to stop the operation and cause the loss of property, even cause the casualties after the subway tunnel intakes.
When extreme heavy rainfall occurs, serious waterlogging occurs in cities, which can cause serious water accumulation in a plurality of places, and once the accumulated water floods subway stations and rail areas after rainfall exceeding the drainage capacity occurs because most of rails and stations are located underground, public traffic can be damaged and even casualty accidents can be caused, for example, the accumulated water of the subway which is under construction in Guangzhou subway in 2010 gushes into the subway line which is under operation, which can cause outage; in 2011, the Beijing subway stops running due to flooding caused by water inflow from the entrance and exit of the subway, the wind pavilion and the entrance and exit line segment; in 2021, the accumulated water of Zhengzhou subway gushes into the operating main line from the parking lot, which causes the train to stop running and causes personal casualties. The existing subway flood prevention mode still adopts manual inspection when rainfall is large, but the flood prevention work and the operation pressure of the subway are large when the rainfall is large, an early warning system capable of providing guidance for the subway flood prevention work is needed, the operation pressure of the subway during rainfall is reduced, the safe operation of the subway is ensured, and after dangerous situations occur, the subway can report flood situations to relevant units in time and apply for rescue. Aiming at the situation, a flood disaster early warning system and method for a subway station hall and a tunnel are provided.
Disclosure of Invention
The invention aims to provide a flood disaster early warning system and a flood disaster early warning method for a subway station hall and a tunnel, which can effectively overcome the defects in the background art.
The purpose of the invention can be realized by the following technical scheme:
a flood disaster early warning system for subway station halls and tunnels comprises a water condition induction system, a water retaining facility, a centralized control room, a subway dispatching center, a subway management department and an emergency management department, wherein the water condition induction system comprises a subway station wind pavilion electronic water gauge, a subway station entrance and exit electronic water gauge, a tunnel track low-point electronic water gauge, a subway station track electronic water gauge, a subway main line entrance and exit electronic water gauge and a subway station electronic water gauge;
the water regime induction and water retaining facility is connected with a subway station centralized control room and an adjacent station centralized control room, the centralized control room is connected with a subway dispatching center, the subway station centralized control room is connected with a subway management department and an emergency management department, and the subway dispatching center is also connected with the subway management department and the emergency management department.
Furthermore, the electronic water gauge is installed at a subway station wind pavilion, a subway station entrance and exit, a tunnel track low point, a subway platform track, a subway main line entrance and exit and a subway station, and is used for detecting different water levels.
Furthermore, the water level is divided into a water accumulation level, a warning water level, a water retaining water level and a water inlet level, and the water levels at the low point of the tunnel track, the entrance and exit of the subway main line and the subway station are divided into drying, water accumulation and water inlet.
Further, the electronic water gauge comprises a gauge body, a flow velocity sensor and a communication module, wherein the communication module transmits data in a wireless mode and a wired mode.
Furthermore, the electronic water gauge is provided with a water level threshold value and an alarm signal, and the electronic water gauge sends a water level signal and a disposal mode to the centralized control room.
Furthermore, the flood disaster early warning system is installed in alarm devices of a subway dispatching center, a subway management department, an emergency management department and a centralized control room.
A flood disaster early warning and early warning method for a subway station hall and a tunnel comprises the following steps:
s1, when the water level of the subway station entrance and exit and the subway station wind pavilion rises to the warning water level, video patrol and manual patrol are enhanced, when the water level rises to the water retaining level, water retaining measures are taken, when the water level exceeds the water retaining level, the water regime is still expanded continuously, the station has water inlet risk, and station closing measures are taken;
s2, after the water level of the subway station entrance and exit and the subway station wind booth rises to the water retaining level, the electronic water gauge reports the water regime to the centralized control room, the centralized control room sends out signals, the water retaining plate rises and is automatically locked, and the rising state of the water retaining plate is manually released after the water level outside the station drops to the warning water level;
s3, when water is accumulated at the low point of the tunnel track, if no precipitation exists outside the station and the section is a non-river lake section, checking the skylight position of the subway, if precipitation exists outside the station, the train operates at a reduced speed, if the water level at the low point of the tunnel track exceeds the water inlet level, a closed area is adopted, the train is forbidden to drive in, and if the train exists in the area, the train is manually guided to the platform to stop and evacuate passengers;
and S4, when the water situation exceeds the drainage capacity in the tunnel or submerges the rails at the entrance and the exit, immediately sending a water inlet alarm to the centralized control room of the adjacent station, and forbidding the train to enter the closed area of the centralized control room, wherein if the train exists in the centralized control room, the train is manually guided to the platform to stop and evacuate passengers, and an emergency management department is requested to intervene for rescue.
The invention has the beneficial effects that:
1. the flood disaster early warning system can guide the safe operation of the subway according to the water conditions of a subway station wind pavilion, a subway station entrance and exit, a tunnel track low point, a subway platform track, a subway main line entrance and exit and a subway station, can additionally arrange a water retaining facility at the subway station entrance and exit in time according to different dangerous conditions, guide passengers to take a bus, close the subway station entrance and exit, direct a train to be close to the station for parking and transporting the evacuated passengers and the like, and reduces the inspection difficulty of subway station staff;
2. the flood disaster early warning system is provided with the electronic water gauge with the flow velocity measuring function, can measure the water conditions of a subway station wind booth, a subway station entrance and exit, a tunnel track low point, a subway platform track, a subway main line entrance and exit and a subway station, reports the water conditions to a centralized control room in a wireless or wired mode, reports the water conditions and the disposal conditions of each station to a subway dispatching center, a subway management department and an emergency management department, and is beneficial to each department and unit to know the water conditions of the subway station and the tunnel and guide rescue work;
3. the interior of the subway station in the flood disaster early warning system can adopt wireless or wired communication, and the wireless communication can be adopted for reporting to upper departments, so that the difficulty in improving the existing equipment by additionally arranging the early warning system is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a diagram of a flood disaster warning system of the present invention;
FIG. 2 is a schematic view of the electronic water gauge of the present invention;
FIG. 3 is a display and control panel diagram of the centralized control room of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, a flood disaster early warning system for subway station halls and tunnels comprises a water condition induction system, a water retaining facility system, a centralized control room, a subway dispatching center, a subway management department and an emergency management department, wherein the water condition induction system comprises a subway station wind box electronic water gauge, a subway station entrance and exit electronic water gauge, a tunnel track low-point electronic water gauge, a subway station track electronic water gauge, a subway main line entrance and exit electronic water gauge and a subway station electronic water gauge;
the water regime induction and water retaining facility is connected with a subway station centralized control room and an adjacent station centralized control room, the centralized control room is connected with a subway dispatching center, the subway station centralized control room is connected with a subway management department and an emergency management department, and the subway dispatching center is also connected with the subway management department and the emergency management department.
The flood disaster early warning system is arranged in alarm devices of a subway dispatching center, a subway management department, an emergency management department and a centralized control room.
Fig. 2 is an electronic water gauge, which includes a gauge body, a flow rate sensor, and an IoT/485 communication module, the communication module can transmit data in wireless and wired modes, and divides the water level into a water level, a warning (patrol) water level, a water retaining water level, and a water inlet (closed station) water level according to the height of the subway station facility, the height of the wind pavilion and the entrance and exit, the water depth and the flow rate, and divides the water level into dry (normal), water accumulation (warning), and water inlet (stop) according to the water level at the entrance and exit of the main line, the low point in the tunnel, and the platform track.
FIG. 3 is a display and control panel of a centralized control room of a subway station, wherein the control system is installed in the control room of the station, different water level thresholds and alarm signals are set according to electronic water gauges installed at different positions, and water condition signals and treatment modes are sent to the centralized control room according to water condition adjustment of different positions.
A flood disaster early warning method for a subway station hall and a tunnel comprises the following steps:
s1, when the water level of the subway station entrance and exit and the subway station wind pavilion rises to the warning water level, video patrol and manual patrol are enhanced, when the water level rises to the water retaining level, water retaining measures are taken, when the water level exceeds the water retaining level, the water regime is still expanded continuously, the station has water inlet risk, and station closing measures are taken;
s2, after the water level of the subway station entrance and exit and the subway station wind booth rises to the water retaining level, the electronic water gauge reports the water regime to the centralized control room, the centralized control room sends out signals, the water retaining plate rises and is automatically locked, and the rising state of the water retaining plate is manually released after the water level outside the station drops to the warning water level;
s3, when water is accumulated at the low point of the tunnel track, if no precipitation exists outside the station and the section is a non-river lake section, checking the skylight position of the subway, if precipitation exists outside the station, the train operates at a reduced speed, if the water level at the low point of the tunnel track exceeds the water inlet level, a closed area is adopted, the train is forbidden to drive in, and if the train exists in the area, the train is manually guided to the platform to stop and evacuate passengers;
and S4, when the water situation exceeds the drainage capacity in the tunnel or submerges the rails at the entrance and the exit, immediately sending a water inlet alarm to the centralized control room of the adjacent station, and forbidding the train to enter the closed area of the centralized control room, wherein if the train exists in the centralized control room, the train is manually guided to the platform to stop and evacuate passengers, and an emergency management department is requested to intervene for rescue.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (7)

1. A flood disaster early warning system for subway station halls and tunnels comprises a water regime induction system, a water retaining facility, a centralized control room, a subway dispatching center, a subway management department and an emergency management department, and is characterized in that the water regime induction system comprises a subway station wind pavilion electronic water gauge, a subway station entrance and exit electronic water gauge, a tunnel track low-point electronic water gauge, a subway station track electronic water gauge, a subway main line entrance and exit electronic water gauge and a subway yard station electronic water gauge, the water retaining facility comprises a subway station entrance and exit water retaining plate, a subway station wind pavilion water retaining plate and a main line entrance water retaining facility, and the centralized control room comprises a subway station centralized control room and an adjacent station centralized control room;
the water regime induction and water retaining facility is connected with a subway station centralized control room and an adjacent station centralized control room, the centralized control room is connected with a subway dispatching center, the subway station centralized control room is connected with a subway management department and an emergency management department, and the subway dispatching center is also connected with the subway management department and the emergency management department.
2. The flood disaster early warning system for subway station halls and tunnels according to claim 1, wherein the electronic water gauge is installed at a subway station wind booth, a subway station entrance and exit, a tunnel track low point, a subway station track, a subway main line entrance and exit, a subway station and is used for detecting different water levels.
3. The flood disaster early warning system for subway station halls and tunnels according to claim 2, wherein the water level is selected from water level, warning water level, water retaining water level, water inlet water level, and the water level at the low point of the tunnel track, the entrance and exit of the subway main line, and the subway station is selected from dry water, accumulated water and inlet water.
4. The flood disaster early warning system for the subway station hall and the tunnel according to claim 1, wherein the electronic water gauge comprises a gauge body, a flow rate sensor and a communication module, and the communication module transmits data in a wireless mode and a wired mode.
5. The flood disaster early warning system for the subway station hall and the tunnel according to claim 1, wherein the electronic water gauge sets a water level threshold and an alarm signal, and the electronic water gauge sends a water level signal and a disposal mode to the centralized control room.
6. The flood disaster early warning system for the subway station hall and the tunnel according to claim 1, wherein the flood disaster early warning system is installed in an alarm device of a subway dispatching center, a subway management department, an emergency management department and a centralized control room.
7. The early warning method of the flood disaster early warning system for the subway station hall and the tunnel according to any one of claims 1 to 6, wherein the early warning method comprises the following steps:
s1, when the water level of the subway station entrance and exit and the subway station wind pavilion rises to the warning water level, video patrol and manual patrol are enhanced, when the water level rises to the water retaining level, water retaining measures are taken, when the water level exceeds the water retaining level, the water regime is still expanded continuously, the station has water inlet risk, and station closing measures are taken;
s2, after the water level of the subway station entrance and exit and the subway station wind booth rises to the water retaining level, the electronic water gauge reports the water regime to the centralized control room, the centralized control room sends out signals, the water retaining plate rises and is automatically locked, and the rising state of the water retaining plate is manually released after the water level outside the station drops to the warning water level;
s3, when water is accumulated at the low point of the tunnel track, if no precipitation exists outside the station and the section is a non-river lake section, checking the skylight position of the subway, if precipitation exists outside the station, the train operates at a reduced speed, if the water level at the low point of the tunnel track exceeds the water inlet level, a closed area is adopted, the train is forbidden to drive in, and if the train exists in the area, the train is manually guided to the platform to stop and evacuate passengers;
and S4, when the water situation exceeds the drainage capacity in the tunnel or submerges the rails at the entrance and the exit, immediately sending a water inlet alarm to the centralized control room of the adjacent station, and forbidding the train to enter the closed area of the centralized control room, wherein if the train exists in the centralized control room, the train is manually guided to the platform to stop and evacuate passengers, and an emergency management department is requested to intervene for rescue.
CN202110891771.4A 2021-08-04 2021-08-04 Flood disaster early warning system and method for subway station hall and tunnel Pending CN113623002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110891771.4A CN113623002A (en) 2021-08-04 2021-08-04 Flood disaster early warning system and method for subway station hall and tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110891771.4A CN113623002A (en) 2021-08-04 2021-08-04 Flood disaster early warning system and method for subway station hall and tunnel

Publications (1)

Publication Number Publication Date
CN113623002A true CN113623002A (en) 2021-11-09

Family

ID=78382638

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110891771.4A Pending CN113623002A (en) 2021-08-04 2021-08-04 Flood disaster early warning system and method for subway station hall and tunnel

Country Status (1)

Country Link
CN (1) CN113623002A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352172A (en) * 2022-01-18 2022-04-15 河南五建建设集团有限公司 Subway entrance and exit field line flood gate system
CN116229684A (en) * 2023-03-13 2023-06-06 中国安全生产科学研究院 Accumulated water backflow subway platform risk early warning method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351057A (en) * 2004-06-08 2005-12-22 Fukui Tekko Kk Prevention system of urban underground facilities or subways from flood water inflow or submersion
CN110005081A (en) * 2019-04-15 2019-07-12 中铁第四勘察设计院集团有限公司 A kind of subway entrance, the recent plugging structure and method for going out ground opening wind pavilion
CN211317447U (en) * 2019-12-30 2020-08-21 太原理工大学 Small-size open channel arbitrary water level velocity of flow detection device
CN112669573A (en) * 2021-01-15 2021-04-16 长安大学 Rain flood monitoring and early warning facility and method for urban subway station port
CN112761721A (en) * 2021-01-11 2021-05-07 天仁民防建筑工程设计有限公司 Intelligent lifting type flood-control water-retaining device for wind pavilion and control method
CN112780342A (en) * 2021-01-11 2021-05-11 天仁民防建筑工程设计有限公司 Intelligent buoyancy type flood-control water retaining device for wind pavilion and control method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351057A (en) * 2004-06-08 2005-12-22 Fukui Tekko Kk Prevention system of urban underground facilities or subways from flood water inflow or submersion
CN110005081A (en) * 2019-04-15 2019-07-12 中铁第四勘察设计院集团有限公司 A kind of subway entrance, the recent plugging structure and method for going out ground opening wind pavilion
CN211317447U (en) * 2019-12-30 2020-08-21 太原理工大学 Small-size open channel arbitrary water level velocity of flow detection device
CN112761721A (en) * 2021-01-11 2021-05-07 天仁民防建筑工程设计有限公司 Intelligent lifting type flood-control water-retaining device for wind pavilion and control method
CN112780342A (en) * 2021-01-11 2021-05-11 天仁民防建筑工程设计有限公司 Intelligent buoyancy type flood-control water retaining device for wind pavilion and control method
CN112669573A (en) * 2021-01-15 2021-04-16 长安大学 Rain flood monitoring and early warning facility and method for urban subway station port

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
谢桥军等: "武汉地铁黄浦路站防洪涝水位及预警研究", 《现代城市轨道交通》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352172A (en) * 2022-01-18 2022-04-15 河南五建建设集团有限公司 Subway entrance and exit field line flood gate system
CN116229684A (en) * 2023-03-13 2023-06-06 中国安全生产科学研究院 Accumulated water backflow subway platform risk early warning method and system

Similar Documents

Publication Publication Date Title
CN113623002A (en) Flood disaster early warning system and method for subway station hall and tunnel
CN109087474A (en) A kind of rail traffic security maintenance method based on big data
CN112904455B (en) Early warning and management and control method and device for coping with short-time strong rainfall community source
US20190249382A1 (en) Stampede preventing method for pedestrian passage in confined space of subway
CN109538284A (en) A kind of double hole single-track railway tunnels stop rescue system and rescue mode at random
CN112669573B (en) Rain flood monitoring and early warning facility and method for urban subway station port
CN111058730A (en) Subway flood-proof door and control method thereof
CN109488367A (en) A kind of one-tunnel two-tracks railway tunnel is stopped rescue system and rescue mode at random
CN112177672B (en) Non-contact railway tunnel lining defect disease monitoring and early warning system and method
CN208780241U (en) Flood monitoring early warning and managing and control system
CN101554877B (en) Overlimit laser monitoring and alarming system of suspension train
CN107476737A (en) Rail rapid transit engineering lift flood protection airtight accelerator control system and control method
CN216467864U (en) Railway monitoring system
CN102632895B (en) Use the high speed subterranean railway that ventilation tower runs
CN113335343A (en) Intelligent flood control system for dam-crossing channel of molten iron combined transport railway and control method thereof
CN111932940A (en) Automatic early warning digital diversion system for tunnel electromechanical installation vehicle
CN219731880U (en) Lane water-blocking gate for traffic tunnel flood linkage
CN205530347U (en) Cut and cover method tunnel structure
CN219668227U (en) Mixed road right rail transit road junction lifting signal device and safety protection system thereof
CN218148111U (en) Modularized flood prevention device for underground facilities
KR101037335B1 (en) System for detecting a falling object on track in platform
CN115013063B (en) Active protection device based on non-colliery mountain condition of permeating water
CN108915763A (en) A kind of tunnel emergency exit structure with bilateral Evacuation function
CN207233203U (en) Vehicle limit for height captures apparatus for obtaining evidence automatically
CN113460125B (en) Automatic control system for safe running of battery car group in shield construction horizontal transportation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20211109