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On January 31, New Year’s Eve, when most people stayed at home to celebrate the New Year, a group of people had to stay in other places and stick to the construction line for the convenient travel of the public.
On the morning of the same day, the reporter walked into the construction site of China Railway 19th Bureau Chengzi High-speed Railway Bid 7 to record their persistence stories. If we expand our vision to the whole line of high-speed rail, during the Spring Festival holiday, 25 work sites will not stop, and more than 1,300 people will fight in the front line, sprinting to achieve the goal of opening to traffic in 2023.
Do not stop work during the Spring Festival.
Starting from Chengdu, driving southbound for more than 40 kilometers, you will come to the multi-line bridge of Chengdu-Chengdu high-speed rail Tianfu Station. At 10 o’clock in the morning, more than 50 workers from the 19 th Bureau of China Railway are carrying out bridge support and preloading construction on site.
Tianfu station multi-line bridge construction site
Tianfu station multi-line bridge is a control project built from high-speed railway, with a total length of 566.7 meters and a multi-line continuous steel structure. Standing on the bridge, the reporter saw this scene: the bridge deck gradually widened from narrow to wide, reaching 12 meters at the widest point, and the total area of the bridge top exceeded 35,000 square meters, which made it the largest among similar high-speed rail bridges under construction in China; There are 185 caps and 237 piers under the bridge, which are arranged in turn, forming a tall "arch" between them, which looks spectacular.
Tianfu station multi-line bridge construction site
"The construction of this bridge was nearly a year late, and the construction was difficult. The construction period was very stressful and there was no way to stop work during the Spring Festival." Zhang Zongwei, commander of Chengziyi Railway Command of Chenglan Railway Company, said. Bridge construction includes many processes, such as supporting, preloading, binding steel bars, concreting, tensioning, etc. Each process is interlocking, and any stop will affect the overall construction period.
Longquanshan Tunnel Construction Site
Leaving the multi-line bridge at Tianfu Station, about one kilometer eastward, it is the entrance of Longquanshan Tunnel. The construction here is even more intense: the knocking of binding steel bars, the humming of rock drills and the squeaking of welding current … played the engineering symphony on the last day of the Year of the Ox.
Longquanshan Tunnel Construction Site
"The entrance of the tunnel is the accumulation body of Chengdu Plain in front of Longquan Mountain Range. The geology is very soft and the surrounding rock is broken. The problem of deformation was encountered during the construction of the underground tunnel." Zhang Zongwei said that the project department temporarily adjusted the up-and-down heading method to the double-side heading method, which effectively controlled the deformation problem, and the monthly digging ruler was increased from several meters to about 15 meters.
It is reported that the No.19 Bureau of China Railway will not stop working during the Spring Festival. Among them, the two bridges are expected to be completed in May, and the Longquanshan Tunnel will strive to be completed in August.
Persistence is also warm.
Near 12 noon, the morning construction was finished, and the workers returned to the project department, waiting for them with a hot jiaozi and a sumptuous reunion dinner.
The employees’ families package jiaozi in the project department.
The 19th Bureau of China Railway started from the Third Project Department of the High-speed Railway Command, and more than 20 employees’ families wrapped up jiaozi in the yard, which brought the atmosphere of the New Year to a climax. There are two kinds of dumpling stuffing-leek eggs and celery pork, which are the flavors from my hometown.
Reunion dinner in the project department
"During the Spring Festival this year, there were more than 500 people staying at the construction site in Bid 7, including more than 100 project managers, most of whom came from Inner Mongolia, Jilin and Liaoning." Wang Jianwei, commander of Chengdu-Zicheng High-speed Railway Command of the 19th Bureau of China Railway, said that in order to ensure that everyone can spend the New Year in a foreign land and invest in construction, the project department encourages employees to take their families to Chengdu to spend the New Year on the construction site.
Reunion dinner in the project department
"My wife and son also came this year." Wang Jianwei’s hometown is in jiaohe city, Jilin Province. He has been working for 36 years, and spent more than 20 years on the construction site. In 2022, it was his seventh consecutive year in other places.
The employees’ families package jiaozi in the project department.
"I must still be homesick." He said. In order to let everyone feel the taste of hometown in a foreign land, the chef has made great efforts in the reunion dinner, including frozen skin, pig’s trotters in sauce, stewed elbows … and jiaozi, who was personally wrapped by his family. Material subsidy+spiritual comfort, so that everyone can feel the warmth of home on the construction site.
Reunion dinner in the project department
Such a picture is being staged across the high-speed rail. Zhang Zongwei introduced that Chengzi high-speed railway is expected to open to traffic in 2023, and has now entered the construction sprint stage. During this Spring Festival holiday, 25 work sites across the line did not stop working, and more than 1,300 people stuck to the construction line.
(Some pictures in this article are provided by Chenglan Railway Company.)
In this winter of 2024, the first online celebrity city is Harbin in the northeast. Ice and snow enthusiasts flocked to Harbin to experience the speed and passion in the ice and snow, which made the ski resort popular.
However, do you really understand the beautiful Harbin snow field? Harbin is located in the northeast of China, with persistent cold in winter, more smoke in the morning and short-term snowstorm. The average minimum temperature in January is -24.6℃. The freezing period is about 5 months. Wang Xi, the nurse in charge of ward 6 of Shanghai Ruijin Rehabilitation Hospital, told the reporter that such climatic conditions may be difficult for some people from the south or warmer regions to adapt to, which may easily lead to frostbite or hypothermia.
"Therefore, it is very important for tourists who are willing to go skiing in the Northeast to enhance their safety awareness." Wang Xi reminded that before enjoying the happiness brought by ice and snow sports, you must know the local weather conditions and snow trails, take precautions against cold, and don’t take risks blindly. At the same time, choosing regular ski resorts and qualified coaches is also a necessary condition to reduce risks.
Bao Yong, deputy director of the Department of Rehabilitation Medicine, Shanghai Ruijin Rehabilitation Hospital, suggested that skiing is interesting. In skiing, due to the characteristics of fast speed, changeable movements and complex venues, there is a certain probability of various accidents and injuries, and we should face up to the risk factors. Common skiing injuries include fracture, joint dislocation and ligament tear.
For novices and people with insufficient experience, skiing may bring safety risks and physical challenges. The following people need to be more vigilant:
Older people:
Due to the decline of physical function, the elderly have weak adaptability to the cold environment. In the northeast where the temperature is tens of degrees below zero, the elderly are prone to problems in the respiratory system and cardiovascular system. In addition, skiing is a high-intensity exercise, and the elderly may be unable to bear such physical exertion.
Children and adolescents:
Body organs such as bones, muscles and joints of children and adolescents are in the development stage and relatively fragile. Skiing is a high-intensity exercise, which easily leads to sports injuries such as fractures and joint dislocation, and affects the normal development of the body. At this stage, children have limited knowledge and judgment of danger and are prone to accidents.
If parents want to take children and teenagers skiing, it is suggested that they choose appropriate equipment, do adequate warm-up exercises, understand safety rules and basic skills, study under the guidance of experienced coaches, be familiar with ski resorts, arrange exercise time and intensity reasonably, pay attention to health conditions and do a good job in sun protection.
People with poor physical fitness or poor physical condition:
Skiing is a high-intensity sport, which needs good physical fitness and physical quality to support it. If you are in poor physical fitness or poor health, you may feel tired, weak or unable to keep your balance during skiing, which will increase the risk of falling or being injured. If you suffer from diseases such as heart disease, hypertension, glaucoma, osteoarthritis, asthma, etc., it is easier to aggravate your illness and have accidents.
In addition, when skiing, the temperature is low. In cold places, people with poor physical fitness may have colds, fever or other health problems because they can’t adapt to the cold environment. Especially in alpine skiing, the altitude is higher, the oxygen is thin, and the requirements for cardiopulmonary function are higher. People with poor health may have altitude sickness.
Pregnant women:
Skiing is a high-intensity sport, which requires fast movement and strong body control. Pregnant women have a special physical condition during pregnancy, and strenuous exercise may lead to fetal instability and increase the risk of premature delivery or miscarriage. In order to ensure the safety of mother and baby, it is best for pregnant women not to participate in high-risk sports such as skiing.
Lack of skiing experience:
For people with no skiing experience or low skills, it is easy to have accidents when they try skiing for the first time. On the steep snow slope in the northeast, it is difficult for inexperienced people to control the speed and direction, which increases the risk of falling and colliding. Therefore, it is suggested to study and train in other places first, or choose a relatively gentle ski trail to accumulate some skiing experience, and then go to the northeast to challenge the difficult ski trail.
In short, before planning to ski in Harbin, we should evaluate whether our physical condition and skill level are suitable for skiing. If you have any questions, it is recommended to carefully consider whether to go. When skiing, be sure to pay attention to safety, wear protective equipment and strictly abide by the rules and instructions of the ski resort to ensure the safety of yourself and others. Only by doing this can we fully enjoy the fun of skiing.
Reporter/Zhang Yi
Editor/Sun Chong
Correspondent/Wang Xi
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CCTV News:The Central Meteorological Observatory continued to issue a yellow fog warning at 06: 00 on January 6. It is estimated that there will be heavy fog in parts of Jiangsu, Shanghai, northern Anhui, southeastern Henan and central Sichuan Basin from the morning of the 6 th, including strong fog with visibility less than 200 meters in parts of central Jiangsu, central Anhui and central Sichuan Basin, and extremely strong fog with visibility less than 50 meters in local areas.
Defense guide:
1. Due to the low visibility on land, drivers should control their speed to ensure safety.
2, airports, highways, ferry terminals to take measures to ensure traffic safety.
On January 11th, Rome Green Finance (ROMA) rose by 21.38% in intraday trading, reaching $3.52 per share at 00:11, with a turnover of $24,058,300.
According to financial data, as of September 30, 2022, Rome’s total green financial income was HK$ 6,200,600, a year-on-year decrease of 0.68%; The net profit returned to the mother was-HK$ 693,600, a year-on-year increase of 62.34%.
This article comes from: financial circles
Author: American stock king
It’s spring tea season again. The problem of pesticide residues in tea can be said to have never stopped, and there will be some very eye-catching posts from time to time. Let’s talk about whether the problem of pesticide residues in tea is serious today. Is drinking tea really equal to drinking pesticides?
Why do you want to use pesticides in tea?
Tea is widely loved because of its natural and healthy properties, and even a necessary drink for many people every day. Tea drinkers naturally hope that the tea they drink is green and pollution-free, without pesticides or other harmful substances, but this is unrealistic.
Tea trees usually grow in a warm and humid environment, which is prone to pests and diseases, and the use of pesticides is inevitable in the process of large-scale planting. According to statistics, there are dozens of pesticides used on tea trees or tea leaves at present, mainly pesticides and herbicides.
What pesticides are mainly used in tea?
China began to use pesticides in tea production in the early 1950s, with a history of more than 60 years. In the first 20 years, DDT and HCH were mainly used in tea, so the level of pesticide residues in tea at that stage was the highest.
Later, people gradually realized that these pesticides would remain in the environment for a long time and would not be degraded, so that they could be found in almost every corner of the earth, which brought lasting pain to our living environment, so countries banned their production and use one after another.
With the development of society, more and more pesticides with high residue or high toxicity have been eliminated and replaced by some pesticides with high efficiency and low toxicity. Tea is no exception. The Food Safety Law of People’s Republic of China (PRC) stipulates that it is forbidden to use highly toxic and highly toxic pesticides in crops such as vegetables, fruits, tea and Chinese herbal medicines.
Is the pesticide residue on tea harmful?
Since pesticides are applied to tea, there will inevitably be some residues, but there are two different things: pesticide residues and pesticide residues exceeding the standard.
All the pesticides allowed to be used in tea by the state are low toxic pesticides, and the Maximum Pesticide Residue Limit in Food of National Standard for Food Safety (GB2763-2016) stipulates the limit requirements of 48 pesticides in tea. These limit values are obtained according to scientific risk assessment. As long as the pesticide residue in tea does not exceed the standard, it is safe for consumers.
Moreover, most of the fat-soluble pesticides used in tea are pyrethroids, and the amount that can be leached into tea is very limited in the process of making tea.
In short, having pesticide residues does not mean harm. The human body is not so "incompetent", it can metabolize a small amount of pesticides or other harmful substances that enter the body, or it is a cliche: it is hooliganism to talk about toxicity without dosage! Not only tea, but also pesticide residues in other agricultural products.
How to reduce pesticide residues in tea?
Although the pesticide residues in qualified tea that meet the standards are safe for consumers’ health, everyone definitely wants to consume as little pesticides as possible. In order to reduce pesticide residues in tea, we can start from the following aspects:
1. Tea farmers use pesticide varieties with low residue and easy degradation in accordance with state regulations, and strictly control the usage.
2. Ensure the safe interval of tea picking. As a kind of plant, tea itself has a certain metabolic ability to pesticides. Picking tea after spraying pesticides for a period of time (ranging from 7 to 15 days) can significantly reduce the residual pesticides in tea.
3. Using ecological control measures to control pests and reduce the use of pesticides will also greatly reduce pesticide residues in tea.
Consumers should buy tea produced by regular manufacturers.
Text/Dr. Wang Xiaodan