RU2746610C1 - Three-span metro station constructed in accordance with the open building method with an island passenger platform and single-track running tunnels - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to the field of construction of underground stations built in accordance with the open building method. The three-span metro station constructed in accordance with the open building method with an island passenger platform and single-track running tunnels is an underground multi-level structure constructed in accordance with the open building method in a construction pit. The structure consists of upper and lower levels located one above the other. There are offices and engineering spaces on the upper level. There are rail tracks on the lower level in the side spans. The main line tunnels adjoin the side spans. There is an island passenger platform with sliding doors for boarding and detraining passengers and a sub-platform space in the middle span. The station is made in the form of a closed frame structure containing monolithic reinforced concrete buckle plates, ceiling sheets, floor slabs, bearing side walls. The station consists of partition walls that divide the station frame structure into three spans. The ceiling sheets and floor slabs are supported by the side and partition walls of the frame structure. The side spans with rail tracks and the middle span with the island passenger platform are interconnected by openings in the partition walls. There are sliding doors for passengers in these openings to enter and exit the train cars from the station platform. The interval between the axes of the openings is equal to the interval between the axes of the doors in the train cars.

EFFECT: technical result consists in increasing the reliability, operational safety, manufacturability and speed of construction of a three-span station in accordance with the open building method with an island passenger platform.

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Description

The invention relates to the field of construction of underground stations constructed by open-cut production of works.

At present, in connection with the need to accelerate the construction of the metro, the question of creating stations designed for the flow method of construction has arisen, while observing the diversity of the architectural and artistic design of each of the stations while ensuring comfortable and safe passenger service. Such stations are built, as a rule, in open pits with a temporary fence in the form of a metal sheet pile, metal beams with a wooden tie or monolithic reinforced concrete walls, erected by the "wall in the ground" method, temporary fastening of the enclosing walls is performed with metal spacer or anchor support.

A well-known subway station is shallow, including station, service and special additional structures, erected by an open method in a vertical excavation (foundation pit) with a complete opening of the day surface, for example, by preliminary execution of excavation excavations followed by the construction of the structure using traditional methods (Tunnels and subways. / Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., ed. 2nd revised and supplemented Moscow, "Transport", 1975, pp. 408-412, 494-500, 502).

Known subway station shallow, including a closed frame structure made of monolithic reinforced concrete with rails placed in it, a platform section with a sub-platform space in which technical rooms are located (RF patent for utility model No. 104202, publ. From 05/10/2011, bull. 13). However, this station is designed as a single-span and single-level, which causes the complexity of the station construction, the need to create a significant thickness of the single-span station cover and the lack of usable space to accommodate office and technical premises.

Known is a multi-level three-span metro station of shallow ground, containing at the lower level an island passenger platform and single-track running tunnels (RF Patent No. 2505646, publ. From 01/27/2014, Bul. No. 3). However, this station is being constructed using semi-closed construction methods known as "top-down", "semi-top-down" or "top & down", which is much more complicated than the open method of production and requires the installation of a large number of "pile-columns", and also high-cost excavation technology.

There is a known three-span metro station of an open method of work with an island arrangement of a passenger platform and single-track tunnels, which is an underground multi-level structure, erected by an open method, consisting of upper and lower levels located one above the other, service and technological premises are located in the upper level, in the lower level, there are rail tracks in the side spans, to which the running tunnels adjoin, and an island platform, in the middle span, with translucent partitions and automatic platform doors for picking up and disembarking passengers from subway train cars and a sub-platform space (Patent for a useful model of the Russian Federation No. 141153, published on 05/27/2014, Bul. No. 15).

The disadvantage of this station design is:

- firstly, the need to build column-run complexes to support the station elements, which significantly complicates the formwork design when concreting floors and interferes with the passage and operation of technological communications;

- secondly, the installation of expensive translucent partitions with automatic platform doors between the side spans and the middle span, which increases the cost of building the station and reduces the speed of its construction;

- thirdly, the presence of translucent partitions with automatic platform doors, nevertheless, provides free access for passengers to the edge of the platform, which makes it necessary to architecturally design the side aisles of the station with rail tracks. This leads to an increase in the construction time and a rise in the cost of the station, as well as problems with the transit of communications along the metro line;

- fourthly, the possibility of passenger access to the edge of the platform reduces the level of station safety for passengers.

The technical result that can be obtained during the implementation of the invention is to increase the manufacturability and speed of construction of a three-span station of an open method of work with an island placement of the passenger platform, as well as the reliability and safety of the station operation.

To achieve this technical result, a three-span metro station of an open method of work with an island location of the passenger platform and single-track tunnels, which is an underground multi-level structure, erected by an open way in a pit, consisting of upper and lower levels located one above the other, at the upper level there are service and technological rooms, on the lower level, in the side spans, which are adjacent to the running tunnels, there are rail tracks, in the middle span, an island passenger platform with sliding doors for embarking and disembarking passengers from subway train cars and a sub-platform space, is made in the form of a multi-span frame ( closed frame structure), containing monolithic reinforced concrete trough slabs, floor slabs and coverings, bearing side walls, as well as intermediate walls that divide the frame structure of the station into three spans, while pl These coverings and ceilings rest on the side and intermediate walls of the frame structure, and the side spans with rail tracks and the middle span with the island passenger platform are interconnected by openings in the intermediate walls, in which sliding doors are installed for the entry and exit of passengers into train cars from the station platform , in this case, the step of the axes of the openings is equal to the step of the axes of the doors in the train cars.

Introduction to the proposed three-span metro station of an open method of work with an island arrangement of the passenger platform and single-track tunnels, a frame structure erected by an open method in a pit, containing a monolithic reinforced concrete chute slab, floor slabs and coatings, bearing side walls, as well as intermediate walls dividing the frame the structure of the station for three spans, with the cover and floor slabs resting on the side and intermediate walls of the frame structure, as well as the connection between the side spans with the rail tracks and the middle span with the island passenger platform by the openings in the intermediate walls, in which the sliding doors for entry are installed and the exit of passengers to train cars from the station platform, while the step of the axes of the openings is equal to the step of the axes of the doors in the train cars, allows you to obtain a new property, which consists in increasing the manufacturability and speed of construction of the station by simplifying the design and the station, erected in the form of a monolithic reinforced concrete three-span frame, and a reduction in the volume of construction work due to the absence of the need for architectural finishing of the inner surface of the side spans with rail tracks and the possibility of reducing, in accordance with the regulatory requirements for closed-type stations without side landing platforms, the width of the passenger platform up to 8 meters, that is, two meters less than the width of the platform adopted at stations of other types, which reduces the volume of excavated soil by 10-15% and reduces the cost of the station, as well as the possibility of increasing the safety of the station operation due to the elimination of accidental falling of passengers from platforms onto the tracks due to the absence of side landing platforms in the area of spans with rail tracks and the use of sliding doors that open synchronously with the doors of train cars located between the island passenger platform and side spans with rail tracks.

The invention is illustrated by drawings, where in FIG. 1 shows a cross-sectional view of a three-span metro station of an open method of production of works with an island arrangement of a passenger platform and single-track running tunnels, in Fig. 2 is a drawing of a fragment of a longitudinal section of a three-span metro station of an open method of work with an island arrangement of a passenger platform and single-track running tunnels with fragments of openings for the passage of passengers, where:

1 - side spans of the station;

2 - middle span with the station hall;

3 - passenger platform;

4 - monolithic reinforced concrete floor;

5 - lateral monolithic reinforced concrete walls;

6 - intermediate monolithic reinforced concrete walls;

7 - aperture for boarding passengers in carriages;

8 - sliding doors;

9 - rail track structures;

10 - technical and office premises of the upper level;

11 - technical rooms under the passenger platform;

12 - monolithic reinforced concrete tray slab;

13 - construction of the pit fastening;

14 - monolithic reinforced concrete slab.

The proposed invention of a three-span metro station of an open method of work with an island arrangement of a passenger platform and single-track running tunnels is constructed as follows.

The station is being built in an open pit, the wall fastening structure of which is determined by the depth of the station, urban planning and engineering-geological conditions of construction, and can be made by various methods, for example, in the form of walls 13, created using the "wall in the ground" technology.

The concreting of a three-span closed frame structure is carried out using the “bottom-up” method from the tray slab 12. Then, side walls 5, floor slabs 4 and a covering slab 14 are erected, as well as intermediate walls 6, dividing the frame structure of the station into three spans, two side 1 and an average span 2 with a station hall.

The slabs of the covering 14 and floors 4 rest on the side 5 and intermediate walls 6 of the frame structure, and the side spans 1 and the middle span 2 are interconnected by openings 7 in the intermediate walls 6.

At the end of the construction of the station lining, an island passenger platform 3 is constructed in the station hall of the middle span 2 of the lower level and the structure of rail tracks 9 in the side spans of the station 1, under the passenger platform 3 and on the upper tier of the station, between the covering slab 14 and the floor slabs 4, service and technical rooms 11 and 10, respectively.

Then, sliding doors 8 are mounted in the openings 7 for the passage of passengers from the passenger platform 3 of the station hall of the middle span 2 to the carriages of the subway train. The step of the axes of the openings 7 for the passage of passengers to the train cars is equal to the distance between the axes of the doorways of the cars, while the sliding doors 8 open synchronously with the doors of the train cars.

The presence of sliding doors 8, opening synchronously with the doors of the train carriages, make it unnecessary for the architectural design of the side spans 1 with track 9, which simplifies the transit of communications along the station and significantly reduces the construction time and costs for the architectural design of the station.

The use of the proposed frame structure of a three-span metro station with an island arrangement of the passenger platform 3 and single-track running tunnels adjacent to the side aisles of station 1 makes it possible to implement a metro station project without side landing platforms, which, in accordance with regulatory requirements for closed-type stations without side landing platforms, provides the ability to reduce the width of the passenger platform to 8 meters, that is, two meters less than the widths of platforms adopted at stations of other types, leading to a 10-15% reduction in the volume of excavated soil and a decrease in the cost of construction of the station.

Sources of information taken into account when preparing the application:

1. Tunnels and subways. / Volkov V.P., Naumov S.N., Pirozhkova A.N., Khrapov V.G., ed. 2nd revised and add. Moscow, "Transport", 1975, pp. 408-412, 494-500, 502.

2. RF patent for useful model No. 104202, publ. from 05/10/2011, Bul. No. 13.

3. RF patent No. 2505646, publ. from 27.01.2014, Bul. Number 3.

4. Patent for a useful model of the Russian Federation No. 141153, publ. from 05/27/2014, Bul. # 15 - prototype.

Claims (1)

A three-span metro station of an open method of work with an island arrangement of a passenger platform and single-track running tunnels, which is an underground multi-level structure erected by an open way in a pit, consisting of upper and lower levels located one above the other, service and technological premises are located on the upper level, on on the lower level, in the side spans, to which the running tunnels adjoin, there are rail tracks, in the middle span there is an island passenger platform with sliding doors for embarking and disembarking passengers from subway train cars and a sub-platform space, characterized in that the station is made in the form of a closed frame structure containing monolithic reinforced concrete trough slabs, floor slabs and coverings, load-bearing side walls, as well as intermediate walls dividing the station's frame structure into three spans, while the cover and floor slabs rest on the sides f and the intermediate walls of the frame structure, and the side spans with rail tracks and the middle span with the island passenger platform are interconnected by openings in the intermediate walls, in which sliding doors are installed for the entry and exit of passengers into train cars from the station platform, while the spacing of the axes of the openings is equal to the step of the axes of the doors in the train carriages.

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