No-load trial operation of "Underground North Third Ring Road" began. Line 12 will open 20 stations in 2024, of which 13 are transfer stations.

  Original title: No-load trial operation of "Underground North Third Ring Road" Line 12 will open 20 stations this year, of which 13 are transfer stations.

Beijing Metro Line 12 completed the motor train debugging, and realized rail communication, electricity communication, signal communication, and successfully completed the cold sliding and hot sliding tests of the whole line. All 42 subway vehicles on Line 12 arrived at the section.

Beijing Metro Line 12 completed the motor train debugging, and realized rail communication, electricity communication, signal communication, and successfully completed the cold sliding and hot sliding tests of the whole line. All 42 subway vehicles on Line 12 arrived at the section.

Beijing Metro Line 12 completed the motor train debugging, and realized rail communication, electricity communication, signal communication, and successfully completed the cold sliding and hot sliding tests of the whole line. All 42 subway vehicles on Line 12 arrived at the section. (Pan Zhiwang photo)

  On March 20th, it was learned from the Municipal Major Project Office and Beijing Investment Rail Company that the Beijing Metro Line 12, which will be opened for operation this year, has completed the motor train debugging, realized the rail communication, electricity communication, signal communication and successfully completed the cold sliding and hot sliding tests of the whole line. 42 metro vehicles on Line 12 have all arrived at the section, and will be put into no-load trial operation for no less than 3 months.

  Metro Line 12 is a rail transit trunk line mainly laid along the east-west direction of the North Third Ring Road, with a total length of about 30 kilometers and 21 stations. It spans four administrative districts, namely Haidian, Xicheng, Dongcheng and Chaoyang, and connects residential areas, commercial areas and important functional areas such as Century City, Shuangyushu, Dazhong Temple, Beitaipingzhuang, Madian, Anzhen, Sanyuanqiao, Jiuxianqiao and Dongba.

  "This year, Line 12 will open the Sijiqing Station to the dongfeng station section, with a total of 20 stations, 13 of which are transfer stations." Han Jian, the first-level director of Track III of the Municipal Major Project Office, introduced. After completion and opening to traffic, Line 12 will transfer to Line 10 at Changchun Bridge Station and Sanyuanqiao Station, Line 16 at Suzhou Bridge Station, Line 4 at Renmin University Station, Line 13 at Dazhongsi Station and Guangximen Station, changping line at Jimenqiao Station, Line 19 at Beitaipingzhuang Station, Line 8 at Anhuaqiao Station, Line 5 at Heping Xiqiao Station, and West. In the future, you will transfer to Line 14 at Gaojiayuan Station and Line 3 in dongfeng station.

  After the line is opened to traffic, it will effectively alleviate the ground traffic pressure in the northern part of the city, especially in the North Third Ring Road, and at the same time play a leading role in the track to drive the development and construction of the surrounding areas of the line.

  Beijing Metro Line 12 is known as the "underground North Third Ring Road", which passes through all the important traffic nodes of the North Third Ring Road, with more than 70 large and small bridges along the line, and most of the stations are located in the bridge area, which can be described as "one bridge and one station". In order to enhance the passengers’ experience, all the entrances and exits of the bridge station should fully consider the travel needs and habits of the surrounding passengers, and be arranged as close as possible to the bus station or existing municipal facilities to create convenient conditions for underground and above-ground traffic.

  Site visit

  Fully automatic unmanned driving is initially realized.

  On March 20th, at Sanyuanqiao Station of Metro Line 12, one train after another sped by. This is a no-load test run. During this period, subway vehicles, power supply, signal and communication systems will be fully tested and calibrated, and people and equipment, systems and systems will be fully run-in. After no-load trial operation, trial operation according to the drawing, completion acceptance and operation evaluation, the line can be opened for operation.

  In the future, Sanyuanqiao Station will become a three-line interchange station for Line 10, Line 12 and Airport Line. During the ride experience, I saw that the whole train on Line 12 was in yellow-gray tone, and the seats in the car were mixed with lemon yellow and light blue. The interior decoration was simple and generous, and the cab was designed with semi-closed transparent glass windows.

  "Metro Line 12 has initially realized the fully automatic driverless function, and the fully automatic debugging of all trains and stations is being carried out in an orderly manner, which will bring passengers a safer and more comfortable travel experience after operation. In addition, the mixed running mode of 4-group and 8-group trains provides 1240 seats for 180 seats and 2480 seats for 360 seats respectively, which can flexibly cope with the passenger flow changes in peak and flat peaks and ensure the maximum transportation efficiency. " Li Shaojun, assistant to the general department of Beijing Investment Equipment Technology Research Institute and project director of Line 12, revealed.

  From Sanyuanqiao Station, pass through Xibahe Station, Guangximen Station, Heping Xiqiao Station and Anzhen Bridge Station, and you will arrive at Anhuaqiao Station. The station is located in the bustling North Third Ring Road, which is the interchange station between Line 8 and Line 12. It will only take 3 minutes in the future, and citizens can complete the interchange at this station.

  At present, the staff of Anhuaqiao Station are carrying out the construction of the aluminum plate on the top of the transfer passage and transfer hall, the floor tiles of the safety exit are being paved and laid, and the entrance and exit passages are also being renovated. In the decoration of the station, Anhuaqiao Station is simple and elegant, refining the texture of the North Third Ring Road city and integrating the sky image, bringing visual enjoyment to passengers through the change of reality and space shaping. At present, 99% of the main structure of the station has been renovated, and 60% of the auxiliary decoration has been completed. (Ren Shan)

Did you do the swimming stroke correctly?

(Circle cards have been added here, please go to today’s headline client to check)

As soon as you enter the summer, you can be happy in the swimming pool!

The premise is that it is best for you to swim.

Learning to swim is not that difficult.

You can learn to swim by yourself.

Today, Xiao Bian integrated several strokes.

If, you will

So is your action correct?

Breaststroke stroke

The second propulsion element of breaststroke is the stroke (as shown below). Different from freestyle and backstroke, each movement is independent of each other; Therefore, timing is crucial. First of all, focus on the well-trained breaststroke holding and paddling stages. The difference is that the hands are not folded together like the skills introduced earlier. Holding water and paddling are two parts of the same action. Put your elbows together under your body and move your hands forward at the same time, so as to release the water from the paddling position.

prepare

Please make sure there is enough space for this exercise.

2. Lie prone in a neutral position, arms straight, palms down, almost streamlined.

carry out

1. Start holding the water, sweep the water outwards with your hands, slightly over your shoulders, and at the same time, tilt your fingers downwards and point to the bottom of the pool.

2. When viewed from above, the trunk and arms should be Y-shaped. When the finger leans down, the elbow bends slightly, making the forearm assume a more vertical position and exerting more pressure on the water.

3. Stop putting pressure on the water before your hands pass the elbow in a posture where the elbow is high and the elbow is low.

4. When you push your hands forward, put your elbows away.

5. When restoring the streamlined posture, make sure that your hands accelerate through.

Freestyle stroke cycle

Once one arm stroke cycle (one for the right arm and one for the left arm) is completed, multiple arm stroke cycles can be combined. Please remember that (unlike other sports) in swimming, the sooner the better is not always possible. Keep moving slowly and unhurriedly. The real goal of this part of the exercise is to fix a hand and forearm in the water and pull the body through them. Stop when you need to breathe.

prepare

 Start near the pool wall, push the pool wall, keep a streamlined posture, and face in the water.

carry out

1. Start with any arm and feel comfortable. Stroke your arm as many times as possible in one breath and exhale slowly.

2. Repeat this process several times and try to swim farther in the pool with the same number of strokes.

Basic backstroke stroke

A good backstroke stroke includes holding water, paddling, ending (palms facing your body, not the bottom of the pool) and resetting, which provide the main swimming propulsion. At a point where the stroke arm is almost vertical, rotate the hand and let the little finger guide the stroke arm to reset.

prepare

1. Make sure there are no obstacles in the swimming lane and the backstroke flag is in the proper position.

2. Adopt a balanced posture of supine.

Execution: holding water

1. Start with the left hand and the left arm, and rotate the hand so that the small point is inclined to the bottom of the pool. Doing so will cause you to rotate slightly to one side.

2. Bend your wrist so that your hand is perpendicular to the target direction.

Follow-up action: paddling

1. The second element is paddling. In this part, bend the elbow so that the forearm is perpendicular to the target direction. Keep your elbow away from your body and prevent it from guiding your stroke.

2. Pull back the arm while keeping the hand and forearm perpendicular to the target direction.

end

When the arm is halfway done, the arm is about in the middle position below the body. It is like trying to slap the thigh with your hand to transition from pulling to pushing.