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09

2022-09

China will build the world's largest railway station, planning an area equivalent to 30 Tiananmen Square, just in Guangzhou

China will build the world's largest railway station, with a planned area equivalent to 30 Tiananmen Square. Guangzhou Railway Station is already an indispensable part of people's daily life. As a project that can not be ignored in urban traffic, each city has its own station. With the improvement of our aesthetic demand, I don't know if you have found that the stations built in recent years have a strong design color. After all, the station can be said to be the "card face" of a city, and it is the first impression of the city by people who come to the city for the first time. Therefore, many stations are now buildings with a sense of style and design. While magnificent, they are also impressive and amazing. Today I want to introduce you to the world's largest railway station, surpassing the original New York Railway Station. It will be built soon. So do you know which is the biggest train station in the world right now? It's in New York, USA. We can see this Grand Central Station in many movie shots and American introductions. In fact, in addition to being able to carry a large number of traffic-intensive passengers, its modeling style and aesthetic construction are also very distinctive. You know, this station was not built in recent years, it was completed as early as 1913. It is now like a huge public art space, and you can feel the fashion elements everywhere in the station. However, the current 190000-square-meter floor area and passenger throughput data of Central Station will soon be replaced by another railway station, and its position as the world's number one station will also be given up. It will be replaced by a brand-new railway station under construction in China: Guangzhou New Station. The huge station was designed by a British architect, Terry Farrell, who is also the designer of Beijing South Railway Station. According to the data that has been disclosed now, the planned area of the new station is a bit scary, with 11.4 million square meters, which is equivalent to 30 Tiananmen Square. Just a fraction is ten times larger than the Central Station. The site of this station is located in Shibi, Panyu. Now it is called the new station because the specific name has not been determined. As the world's largest station, construction and cost is also very huge, construction investment is expected to be around 13 billion. After completion, it will be one of the most important transportation hubs in the entire Zhuhai play economy region. If you want to take the train from Guangzhou, there are five subways to the station in the city. If you drive, there are also expressways that go straight to the station, which can be said to be very convenient. The theoretical annual tourist volume of this station is as high as 0.17 billion million, which is more than the population of Guangdong Province. After it is completed, it will greatly ease the passenger pressure of other stations in Guangdong. For our country, this station also has a certain strategic significance. According to the disclosure, it will take about 10 years to build the station. Ten years of such a huge project is not very slow. You know, it took 10 years for the Central Station to be built. I believe that ten years later, when the station is completed, there will be a new atmosphere. Have you been to Guangzhou? What impression has this super first-tier city left on you? Looking forward to the new Guangzhou station in the future?

2022-09-09

09

2022-09

Expansion! China's largest "cross-city" subway group is coming

The geographical boundaries of Chinese cities are disappearing. 01 "Cross-provincial" Metro Expansion The subway is connecting different cities together. A few days ago, the "Guangzhou Rail Transit Network Planning (2018-2035)" was released. By 2035, Guangzhou will build an urban rail transit system composed of high-speed subways, express subways, and general-speed subways, with a total scale of 53 and 2029 kilometers. Guangzhou's subway network is not limited to the city, but to the expansion of the metropolitan area and outside. According to the plan, there will be 18 connecting channels in Guangzhou and Foshan in the future, 6 connecting channels in Guangzhou and Dongguan, and 1 connecting channel in Guangzhou to Shenzhen, Qingyuan, Zhongshan, Huizhou and other regions. This means that Guangfo is almost connected by subway, and Guangfo will become the largest urban area in China. Guangzhou and Dongguan, Shenzhen, Qingyuan, Zhongshan, Huizhou will also have urban rail transit links. Coincidentally, Shenzhen is planning to extend the subway line to Dongguan and Huizhou in the metropolitan area. Recently, according to Shenzhen media, Shenzhen and Dongguan, Huizhou will form a total of 17 cross-city tracks in the future. Among them, there are 13 articles between Shen Guan and 4 articles between Shen Hui. At present, the east extension of Shenzhen Line 6, the north extension of Shenzhen Line 11, the north extension of Shenzhen Line 22, the east extension of Shenzhen Line 10 and the east extension of Shenzhen Line 14 are being studied and included in the fifth phase of the construction plan. This indicates that the long-called Shenzhen-Dongguan and Shenzhen-Hui inter-provincial subways are about to move from concept to reality, and Shenzhen's population and industry are expected to continue to transfer to the two places. At that time, in the Greater Bay Area, there will be not only high-speed rail, EMU, and urban rail connections between major cities, but also a more urban-oriented subway network. The Greater Bay Area will become a city in the sense of transportation. In addition, the inter-provincial subways in Shanghai and Beijing are also advancing in an orderly manner. As early as 2013, the country's first inter-provincial subway Shanghai Line 11 was fully completed, and since then there has been a direct channel from Shanghai to Kunshan, Jiangsu. In the future, Shanghai to Jiangsu Taicang, Zhejiang Jiaxing, or will have a city fast rail connection. After calling for more than ten years, the Beijing subway finally began to extend to Hebei. At present, the feasibility study report of the Beijing section of Beijing Rail Transit Line 22 (Pinggu Line) has been approved, marking the first time that Beisan County will be connected to the capital subway network. In addition, there are a number of second-tier cities began to layout within the metropolitan area of the subway network expansion. At the end of last year, the Gedian section of the third phase of Wuhan Metro Line 11 was opened for operation, and Ezhou entered the "subway era" and became the second city in the province to have a subway after Wuhan. At present, Nanjing line S6 Ningju intercity operation, Ningma intercity, Ningyang intercity, Ningchou intercity fully started, the future Nanjing to Zhenjiang, Yangzhou and Anhui Maanshan, Chuzhou will have rail transit connections. ...... 02 Who is Metro First City? Subway, why is it so important? This is the first half of 2022 China's urban rail transit line ranking: In official documents, the subway is included in the category of urban rail transit. Urban rail transit is a broad sense of the subway, including subway, light rail, urban express rail, tram, magnetic levitation, APM and so on. According to the analysis of the book "China's Urban Trends", unlike high-speed rail focusing on inter-provincial transportation and inter-city railway focusing on inter-city transportation, urban rail transit focuses on intra-city and inter-metropolitan areas. In urban rail transit, subways mostly operate underground, with the highest cost, the strictest approval, and the highest construction threshold, but they cover more stations, the shortest interval, higher passenger flow, stronger pulling effect, and the highest value. The urban express rail, which connects the central city with the suburbs and metropolitan areas, can be understood as a long-distance subway, but with fewer stations and longer intervals. Trams are laid on the road, have independent right of way, and the approval is relatively loose. Therefore, they have become an alternative choice for new urban areas and second-and third-tier cities that cannot build subways. China's urban rail transit, basically to the subway, but more than half of Nanjing, Qingdao nearly 6 Chengdu is the city fast rail. 03 Subway, why is it so important? When the subway rings, gold is ten thousand taels. The subway is famous for its large passenger flow, multi-station, high frequency and punctuality, which can not only shorten the access time, but also narrow the psychological distance between different regions. As long as there is a subway connection, the place tens of kilometers away from the main urban area is no longer a solitary suburb, and the provincial boundary represented by the three northern counties is no longer the embarrassment of being "disliked. Even if these places cannot be merged with strong central cities, they can also complete the integration in the sense of metropolitan area through subways. It is worth mentioning that the subway has a strong economic effect. In the short term, subway construction is a sharp weapon to stimulate the economy, and the fixed asset investment it drives can often become a support for steady growth. In the medium and long term, the network of subway connections can drive the redistribution of urban population, commerce, and resources among regions, and drive the value of land around the subway to increase by multiple levels. At the level of the metropolitan area, the existence of the cross-city subway helps to break the geographical boundaries between different cities. Central cities can use this for soft expansion. Even if the surrounding cities cannot be merged through administrative means, the influence of transportation, economy, and industry is enough to bring the surrounding cities into their own "disguised. More importantly, the soft expansion of the central city will also drive the population and industry of the core city and help the common development of the metropolitan area. At present, in the Pearl River Delta, Yangtze River Delta and the capital metropolitan area, cross-city commuting has become a trend. Data show that the Pearl River Delta has an average of at least 1.21 million people commuting across cities every day. Among them, with the opening of three inter-city subways, the average number of trips between Guangzhou and Foshan reached 1.74 million, ranking first in the country. With the gradual formation of the cross-city subway network, this number will double, which can be described as a shot in the arm for the starving third-and fourth-tier property market. 04 Not all cities are eligible to build subways. The expansion of the cross-city subway allows third-and fourth-tier cities to use the metropolitan area to complete the "curve to save the country" of the subway ". You know, not every city is qualified to build a subway. According to the "Opinions on Further Strengthening the Management of Urban Rail Transit Planning and Construction" issued in 2018, the threshold for subway and light rail construction has been comprehensively raised. The subway requires a GDP of more than 300 billion yuan, an urban population of more than 3 million yuan, and a local general budget revenue of more than 30 billion yuan; Light rail requires a GDP of more than 150 billion, an urban population of more than 1.5 million, and a local general budget revenue of more than 15 billion. In the past few years, urban subway projects in Baotou and other cities were suspended because GDP and fiscal revenue did not meet the standards; Huizhou has been seeking to connect with the Shenzhen subway, but it has been stranded many times in the past due to the size of the urban population. A few days ago, based on the consideration of preventing local debt, the state has further tightened the threshold for subway construction. At the end of last year, the National Development and Reform Commission and other departments issued a document stating that it is strictly forbidden to build subways and light rails in disguise in the name of new intercity railways and urban (suburban) railways. At the beginning of this year, according to the China Business News, relevant departments will further refine the urban rail approval conditions, and will not accept the first round of construction plans for unqualified cities and general prefecture-level cities; at the same time, it is stipulated that the passenger flow does not meet the standards after three years of operation., Can not report a new round of construction planning. This means that even if the GDP, population, fiscal revenue and other rigid indicators meet the standards, the insufficient passenger flow will not be able to build the subway. This highlights the importance of "cross-city subway" under the metropolitan area, which is equivalent to opening a back door for third-and fourth-tier cities with insufficient economic volume. The most significant sign of the metropolitan area is the "one-hour traffic circle", which is naturally inseparable from the interconnection of subways, light rails, urban express rails, and intercity railways. Under the general trend of transportation integration, even if the third-and fourth-tier cities located in the metropolitan area do not meet the requirements, they are also expected to connect the subway. This is an important opportunity for third-and fourth-tier cities in the metropolitan area era.

2022-09-09

09

2022-09

The advantages of Meitengqi small roller

Its advantages are mainly manifested in six aspects: 1. The equipment can enter some relatively narrow construction sites at will, which is not available for large road rollers. It is irreplaceable, so it can be called "monopoly advantage". 2, the equipment is easy to operate, because the whole machine itself is relatively light, so the operation is very convenient, as long as it has Operators with relevant knowledge can operate, so it is called "fool-like advantages". 3. The equipment has a simple structure and a small footprint. It is very effective whether it is used or stored, so it can be called "The Advantages of Portable". 4, small pressure Louis maintenance, the whole equipment structure is simple, because whether it is the elimination of some faults or the installation. The maintenance is very simple. Therefore, it is called "easy maintenance advantages". 5, the cost of the equipment is much cheaper than the large roller, that is, economical and practical, so it can be called "good quality and low price". 6, the equipment work is very fine, the general appearance will be used spray treatment, not easy to rust, greatly extended Its service life, so it can be called "usage rate to advantage". "To get rich, build roads first." With the rapid economic development, the construction of roads is also the key that cannot be ignored. The construction process can not be separated from all kinds of auxiliary machinery and equipment, in which the small roller is particularly important. The equipment investment is small, the project Small, but this does not affect its products, good structure can meet the construction needs, so sometimes even than large to be more popular.

2022-09-09

08

2022-09

Is lithium battery better than ternary or lithium iron phosphate? Advantages and disadvantages of lithium iron phosphate battery and ternary lithium battery

Ternary lithium batteries and lithium iron phosphate batteries each have their own advantages. In the case of similar prices, you can choose according to the vehicle environment. If the local climate is relatively cold, then choose ternary lithium battery. Because the low temperature performance of the ternary lithium battery is good, even in the weather of minus 20 degrees, the heating performance can still reach more than 70%. On the contrary, if the local climate is relatively hot, then you can choose lithium iron phosphate batteries. Because the lithium iron phosphate battery has good heat resistance, the thermal runaway temperature can reach more than 800 degrees, and spontaneous combustion will not occur in hot areas. The thermal runaway temperature of lithium batteries is only about 200 degrees, which is dangerous for hot areas. As for the service life, the lithium iron phosphate battery will indeed be longer than the ternary lithium battery, but there is no need to worry about it. Because for family cars, whether it is a ternary lithium battery or a lithium iron phosphate battery material, the rated life of the power battery is far from the actual user's habits. The advantages and disadvantages of lithium iron phosphate batteries and ternary lithium batteries 1. Energy density: The energy density of ternary lithium is about 1.7 times that of lithium iron phosphate, so the volume and weight of ternary lithium batteries will be smaller than that of lithium iron phosphate batteries, and the car load will be smaller. 2. Safety performance: Lithium iron phosphate batteries will perform better in the acupuncture test, and in high temperature environments, the stability will be much better than ternary lithium batteries, which also means that the natural proportion of ternary lithium batteries Larger. 3. Service life: In the process of power decay from 100 to 80%, the charge and discharge cycle life of lithium iron phosphate battery can reach more than 3500 times, while that of ternary lithium battery is only about 2500 times. And under the same number of cycles, the remaining capacity of the lithium iron phosphate battery will be more than that of the ternary lithium battery. 4. Low temperature performance: The limit working temperature of lithium iron phosphate battery is minus 20 degrees, while the ternary lithium battery is minus 30 degrees, and in the same low temperature environment, the attenuation of lithium iron phosphate battery will be higher than that of ternary lithium battery.

2022-09-08

08

2022-09

MD-3 three motor industrial vacuum cleaner

2022-09-08

06

2022-09

How to do the viscosity of epoxy floor paint is too large

Good epoxy floor paint is the first condition to make high quality epoxy floor. There are many indicators on floor paint. Among them, the viscosity of epoxy floor paint is a very important indicator. If the viscosity of epoxy floor paint is too large, it will cause epoxy floor quality problems. So, why epoxy floor paint will appear too high viscosity? How should we do to prevent the viscosity of epoxy floor paint is too large? 1. epoxy floor paint viscosity is too large reasons 1, epoxy floor construction has the requirements of the environment. If the temperature is too low or too high, it is not suitable for construction. If the temperature is too low, it is easy to have excessive viscosity. If the temperature is too high, the epoxy floor paint should be used as soon as possible, otherwise the viscosity will rise directly. 2, the epoxy floor coating mixed and stirred, after a long time has been placed after the reaction, will cause the viscosity of the floor coating is too large. 3, epoxy floor coatings and ingredients have a certain proportion. If the amount of sand or powder in the ingredients is too large and no solvent is added, the viscosity of the floor paint will be too large. 2. how to prevent epoxy floor paint viscosity is too large If the external temperature is too low or too high, the construction of the epoxy floor should be stopped. 2, the preparation of epoxy floor paint should be used up in time, do not place too long. 3, epoxy floor paint deployment must conform to the normal proportion. Sand and powder need to be added appropriately, and solvent should be added according to the situation.

2022-09-06

06

2022-09

Types and properties of epoxy floor paint:

1, epoxy resin floor, epoxy self leveling floor, epoxy sand floor has good decorative properties; 2, epoxy anti-static floor has a good anti-static effect; 3, metal wear-resistant floor, emery wear-resistant floor has good wear resistance and so on. The user can choose the corresponding floor products according to the requirements of the ground: First: due to the different floor decoration performance characteristics, if the ground needs better decorative floor should choose self leveling floor, sand floor and so on; Second: according to the different materials of the floor to choose different types of floor coatings. For example, the building floor surface materials are concrete, cement, mortar, wood, steel, asbestos cement board, etc., different materials have different requirements for floor paint coatings, therefore, should be in accordance with the different materials of the base layer to choose different types of floor paint coatings; Third: according to the budget cost to choose floor paint. The budget price determines the level of floor paint, the more budget, of course, you can choose a better floor paint, performance is more secure. Fourth: in accordance with the next floor to decorate the length of time to choose floor paint. If the next floor decoration time interval is longer, to choose a better performance such as wear resistance floor paint, if the next time to decorate the time interval is relatively short, you can choose the performance of a little worse floor paint.

2022-09-06

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