Introduction to the second phase of Zhangcheng Expressway?
On October 28, 2011, the construction of the second phase of the Zhangcheng Expressway from Chongli to Zhangchengjie officially started and is expected to be completed and opened to traffic in 2014. Zhongda Consulting consulted the CBI Construction Network information to obtain relevant information about the second phase project of Zhangcheng Expressway:
The second phase project of Zhangcheng Expressway - Overview
October 28, 2011 On July 1, the construction of the second phase of the Zhangcheng Expressway from Chongli to Zhangchengjie officially started and is expected to be completed and opened to traffic in 2014.
The Zhangjiakou to Chongli section of the first phase of the Zhangcheng Expressway was completed and opened to traffic at the end of September 2010. The Chongli to Zhangchengjie section of the second phase of the Zhangcheng Expressway started this time, starting from the Chongli North Interchange at the end of the first phase of the Zhangcheng Expressway. The route goes north through Taipingzhuang and Baiqi, and crosses the Nanchi Highway to the west of Nanshanyao Village. , turn northeast at Shizigou Town, pass through Dadidi and Qingwuying, cross Huapiling at Dadonggou, reach the dam, then go north through Laohugou, Naobao Mountain, Hanqingba, and turn east at Dongtan After crossing the Hulu River, cross the Baoping Highway in the north of Xiaonanying, and reach the end of the project at the Zhangcheng junction in the north of Xiaoerhao Village. The total length of the route is 101.807 kilometers. There are 4 interchanges and 4 connecting lines along the entire line, with a total length of 54.1 kilometers. This section of the highway is constructed with two-way four-lanes, with a design speed of 80 kilometers per hour. The construction of this project is of great significance to improving the highway network structure of our province, strengthening the connection between Zhangcheng and Chengdu, promoting the development of resources and tourism in Zhangcheng and Chengdu, accelerating the poverty alleviation and prosperity of Bashang area, and promoting the harmonious development of regional economy.
Zhangcheng Expressway Phase II Project - Progress
On March 28, 2013, the land acquisition, demolition and project construction mobilization meeting for the Chongli to Zhangchengjie section of Zhangcheng Expressway was held in Chongli was held. Pan Xiaodong, member of the party group and deputy director of the department, and Song Wenling, deputy mayor of Zhangjiakou Municipal Government, attended the meeting and delivered speeches.
Pan Xiaodong emphasized that this conference marked the official opening of the second phase of the Zhangcheng Expressway project. Departments at all levels should cherish opportunities, honors, and positions, and play their respective functions in the construction of the project. effect. In project construction, first, we must unify our thinking, gather strength, and fight the overall battle of land acquisition and relocation. Create a good government environment, social environment, security environment, and public security environment. The second is to set the goal and work together to ensure that no safety and quality accidents occur. The third is to strictly enforce standards and procedures to ensure that construction standardization is implemented. Fourth, we must comprehensively promote the "Ten Disclosures" and strengthen the construction of clean government.
In view of the relocation work across the board, Song Wenling said that all relevant county governments and relevant units must, with a high sense of historical mission and a strong sense of responsibility, unite and cooperate to overcome difficulties and successfully complete the second section of Zhangcheng Expressway. period of relocation tasks.
At 9:56 am on April 27, 2013, the Huapiling Tunnel in the Chongli to Zhangchengjie section of the Zhangcheng Expressway broke ground, marking the start of control projects for the entire Zhangcheng Expressway.
The Huapiling Tunnel is located in Shuiquanwa Village, Zhanhai Township, Zhangbei County, Hebei Province. The tunnel has a total length of 3,000 meters in both directions. It was constructed by the China Railway 11th Bureau Group and is the largest control project along the entire line. The climate here is cold and the effective construction period is only 15 to 18 months.
In order to strive for the early start of the tunnel construction, the leaders of the management office ran around, worked day and night, and gave full support and coordination. At the same time, the leaders of Zhangbei County and Zhanhai Township also provided active support and cooperation. The project department has done a lot of preparatory work in terms of land coordination, construction start procedures, materials and equipment, construction personnel, and technical tests. The groundbreaking marks the official entry of the Huapiling Tunnel into the construction phase.
On the morning of April 28, 2013, the Guyuan section of Zhangcheng Expressway, a key transportation construction project, was fully constructed in a festive and warm atmosphere. At the Changliang Shilishan construction site, salutes were fired, colorful flags were flying, and several machines started working together, creating a bustling and busy scene. It is reported that the Guyuan section of the Zhangcheng Expressway is an integral part of the highway network layout of Hebei Province and one of the main trunk lines in the construction of the highway network in Guyuan County. The route starts near Xiba Village, Lianhuatan Township, passes through Xixinying Township, Xiaohezi Township, Pingdingbao Town, and ends at Shilishan Village, Changliang Township. The total length of the route is 54.3697 kilometers, with a design speed of 80 kilometers per hour. Throughout the entire process, 2 service areas, 1 high-to-high interchange, and 2 exit interchanges were built, namely the Xiaonanying exit interchange and the Dongxinying exit interchange. One tunnel is 438 meters long. *** Construction of 36 large, medium and small bridges, 5 separate overpasses, 7 overpasses, 5 access bridges, 2 ramp crossing bridges, and 95 culvert passages of various types. The total investment of the project is approximately 4.5 billion yuan, and the construction period is expected to be three years.
According to the person in charge of the project, the owner of the project is the Hebei Provincial Expressway Administration, and the executive owner is the Hebei Provincial Expressway Zhangcheng Zhangjiakou Management Office. The Guyuan section involves four bidding sections, namely Bid D, which was won by China Communications Construction Company No. 1 Bridge and Tunnel Company; Bid E, which was won by Xingtai Road and Bridge Construction Corporation; Bid F, which was won by Hebei Guangdong Road and Bridge Engineering Co., Ltd.; Bid G, which was won by China Railway Five winning bids.
The construction of the Guyuan section of the Zhangcheng Expressway will be very important for improving the county's road network structure and traffic conditions, stimulating tourism and economic development along the expressway, and accelerating the county's economic leapfrog and green rise. role.
"High quality, efficient, ecological and environmentally friendly". In the Zhangjiakou section of the Zhangjiakou Expressway from Chongli to Zhangchengjie, these eight words are constantly being demonstrated in practice.
The second phase of the Zhangcheng Expressway officially kicked off construction on March 28, 2013. In just three months, solid steps have been taken in terms of site construction, main projects, ecological environmental protection, and benefiting the people. , to create a harmonious atmosphere between man and nature, and between man and man.
Zhangcheng Expressway Phase II Project - Construction: Standard Construction Road
Going along the construction road, the construction site under the blue sky and white clouds is very magnificent. The Director of the Zhangjiakou Management Office of Zhangcheng Expressway introduced to reporters that the tall machine is called a dynamic tamping machine, which is mainly used for tamping the foundation of half-filled and half-excavated road sections. That machine is digging pile holes, and that machine is filling in front of the road. Crushing... Walking on the sidewalk is much easier than expected, like walking on a small asphalt road leading to the village. Yu Hai said that this sidewalk is built according to standards, and those that fail will not be accepted. Stopping at a channel foundation construction site, workers were installing formwork, surrounded by steel pipes and protective nets, with reflective materials stuck on them. There are several public notice boards erected next to it, with the name of the structure, structure, construction manager, supervisor, etc. clearly written.
Yu Hai said that construction standardization is the concept of engineering construction and is also a good starting point. Whether the project is done well or not depends on the determination and intensity of standardization. The management office seized the favorable opportunity for construction units to enter the site and carried out standardized training to "brainwash" the management personnel and front-line construction workers of the construction units. After the training and examination, the extensive construction awareness in the past was fundamentally changed. You may not get used to it at first, but after practice, standardized construction has truly improved efficiency, and the word "standardization" has come to mind among all construction personnel.
The C-standard project department is located at the foot of the mountain. It has an electric gate and a hardened courtyard. Several rows of brick and wood structure houses serve as offices and staff dormitories for various departments and departments. Next to it is a large color steel plate building facing north and south. Meeting. Project manager Li Jun said that this place used to be a dilapidated village committee and primary school. After we moved out, they were all left to the villagers for continued use. According to the standardization requirements, all facilities in the project department have standards, such as staff bathrooms and flush toilets. Standardization gives frontline construction workers dignity and they are no longer rustic after work.
It is understood that most of the 7 project departments, 4 resident offices, and 1 general manager's office across the line were renovated using local old primary schools, old village committees, and warehouses, without occupying a single acre of new cultivated land. While achieving the standardization of the residence, several "Hope Primary Schools" and "Village Activity Centers" were built in the local area.
Yu Hai said that the first-piece project acceptance system is implemented for each single project across the entire line. Only after establishing standards, regulating procedures, and summarizing experience can large-scale construction be allowed, and resolutely not to speed up the project at the expense of project quality. schedule.
The second phase of the Zhangcheng Expressway Project - Protective Greening: Ecological Environmental Protection Road
Most of the Zhangcheng Expressway is located in the transition zone of the Bashang Plateau, with severe desertification and a very dry surface. It is covered with a layer of floating soil. When the wind blows, dust fills the sky. Wherever the machine passes, a puff of dust and smoke is blown by the wind. 3-4 sprinklers are dispatched every day to maintain the sidewalks to prevent dust.
The management office requires that the construction team should make environmental protection the focus of the project when entering the site, emphasizing that the project cost should not be reduced at the expense of the ecological environment. Previously, the builder planned to use 1-2 yuan m2 for greening, which was unable to meet the requirements of environmental protection. Considering that the vegetation in Zhangjiakou is fragile, it is difficult to restore once it is damaged. The management office changed the capital investment for greening to more than 20 yuan m2. The original design of the section passing Guyuan Wetland was a 900-meter roadbed. In order to protect the wetland, we decided to build a bridge through it. This alone increased investment by 59 million yuan.
During the construction of Zhangcheng Phase II, special attention was paid to construction, protection and greening. Special attention should be paid to avoid large-scale excavation and large-scale filling. The designed tunnel does not enter from the middle of the mountain like traditional tunnels. Instead, it walks close to the foot of the mountain and enters the cave along the mountain. It is necessary to enter the cave early and exit late to avoid excavation and filling. Protected the mountain. Considering the fragile ecological environment along the way, if there is excavation and filling during construction, we will try our best to restore it to its original appearance after the repair is completed to protect the original vegetation. It was difficult to obtain materials for the A-mark roadbed, so they used their brains to replace the villagers' gravel with clear topsoil, filling the roadbed and creating land for the villagers, achieving a win-win situation.
In the Bid B project area, I saw a small piece of land set aside. The plants inside were lush and lush. Ouyang Shan, manager of the B-standard project, said that this is a green belt cultivated with clear topsoil. Different from the past, all the clear topsoil of Zhangcheng Phase II was not discarded, but was piled together. The cleared topsoil is mainly humus soil and is used for highway slope greening, wasteland land reclamation, etc. In addition, the Huapiling Tunnel, which just broke ground in April, will make full use of waste to build a viewing platform.
It is understood that Zhang Cheng’s second phase plan will build two viewing platforms. One is built in Huapiling, known as the “Jiuzhaigou Valley outside the Great Wall”. Its main peak is as high as 2188 meters above sea level. It is the second viewing platform on the dam. One peak, the mountains stretch, and the mountains rise and fall. This viewing platform is set up at the exit of the tunnel, and the scenery is picturesque as far as the eye can see. The other place is set in the Five-Flower Meadow. There are many kinds of plants in the Five-Flower Meadow. At different times, different flowers color this meadow. It is named after the five colors of flowers that bloom in midsummer. The setting of the observation deck is fully integrated with the promising tourism resources along the way, demonstrating the harmony between man and nature.
The second phase of Zhangcheng Expressway - benefiting the people: the road to poverty alleviation and becoming rich
The route from Chongli to Chengde has obvious turns.
The staff explained: "The main reason for this design is that there are fewer towns and villages along the straight line. The three counties of Chongli, Zhangbei, and Guyuan that pass through the curve are all national-level poverty-stricken counties, and there are exits in each township. , can effectively lift the Bashang area out of poverty.”
The temperature in the Bashang area is low all year round, and the out-of-season vegetables grown by farmers are very popular, and are exported to Japan and South Korea in large quantities every year. "The temperature here is low, and the Chinese cabbage produced in June and July has no pests and grows well!" Yin Yong, a farmer who lives in Xiawopu, said proudly. He has 13 acres of land, mainly growing beans, cauliflower, and cabbage. . When talking about profits, he shook his head helplessly. The price of vegetables is unstable every year, and he can only rely on the weather. It is understood that there are many farmers like Yin Yong, and they hope that the builders of the Zhangzhou-Zhuo Expressway can open up a way for them to get rid of poverty and become rich.
Due to the scarcity of land resources, builders tried to occupy as little farmland as possible when designing routes, and mostly walked through barren hills and slopes. In addition, Zhangjiakou's poor land resources were fully taken into account during the construction of the project. Most of the cleared topsoil will be covered with waste to transform wasteland and create land for the people. Preliminary statistics show that the second phase of the project will utilize borrow pits and spoil pits to create approximately 2,000 acres of land.
Zhangcheng Phase II provides convenient transportation conditions for the development of tourism along the way. The three counties of Chongli, Zhangbei and Guyuan it passes through are very rich in tourism resources. The Lightning River, which has nourished the Bashang grassland like a mother for thousands of years, is only 20 kilometers away from Zhangcheng Phase II. Every midsummer, the grassland on Bashang has blue sky, white clouds, birds singing and fragrant flowers, making it a summer resort. In winter, the unique scenery outside the Great Wall is a paradise for ski lovers. The Wanlong Ski Resort in Chongli is currently the largest natural ski resort in North China, the closest to Beijing, and the most complete service facilities.
Zhangcheng Expressway Phase II Project - Joint Design: High-quality and Efficient Road
Spring came very late in Bashang in 2013. Since the official construction kicked off on March 28 , the weather has been bad. During the spring cold in April, it was even more windy and snowy, and the temperature was cold. It didn't thaw until mid-May. The builders of Zhang Cheng, who were not afraid of hardships, rose to the challenge and overcame adversity, so that the early stage of the project could be carried out smoothly. Up to now, the Zhangcheng Phase II project has completed a total investment of 850 million yuan. The temporary construction of the project department, mixing station, and prefabricated yard have all been completed, and the roadbed project and meter cleaning work are progressing smoothly.
In order to achieve the goal of high quality and efficiency, the four units of construction, owner, supervision and design conducted a joint design. From the joint design upon entering the site to the subsequent dynamic design, the entire construction process will be carried out to make up for the shortcomings and defects in the design.
According to Guo Jingde, director of the General Engineering Office, a total of 168 culverts and passages will be installed in the Zhangcheng Phase II project. Since winter temperatures often exceed minus 30 degrees and the groundwater level is relatively high, during the joint design stage, the management office fully considered the anti-freeze requirements of the culvert foundation, carried out anti-freeze design changes to the structure foundation, and set the foundation depth at 30 cm below the freezing line to ensure the safety of the structure during freezing and thawing.
There is a fish pond in contract section B with a spring in it, which is the source of Qingshui River. When the nearby villagers heard that the roadbed of Zhangcheng Phase II was going to occupy the fish pond, they were very anxious. The spring water of this fish pond supplies drinking water and farmland irrigation water to more than 3,000 people in 4 villages in Chongli County and 2 villages in Chicheng County across the mountain through a diversion tunnel. Occupying the fish pond will inevitably cause pollution to drinking water sources and even Blocking spring water channels caused 6 villages to be without water. After learning about it, the management office adjusted the original design through on-site surveys and joint design, and set up structures to cross over according to the layout of the springs to protect the water source.
The construction environment is harsh, the climate is cold and dry, and the terrain difference is as high as 600 meters; the effective construction period is short and the construction period is tight... There are countless difficulties in the construction of the second phase of Zhangcheng. Overtime work is common for builders, and most people only go home once every half month. Since the project had just started and there were too many things to learn and master, the management office mandated overtime work from 7:30 to 9 p.m. every night, and sent special personnel to check the work. People jokingly called it "late self-study."
However, the builders did not complain too much. Adhering to the spirit of "pursuing excellence, being willing to contribute, working hard, and being first-class", they silently pushed forward the construction progress, and in the beautiful Splash ink on the dam to paint the beauty of traffic.
The above is Zhongda Consulting’s introduction to the second phase of the Zhangcheng Expressway. For more knowledge about highways, please pay attention to the construction knowledge column of Zhongda Consulting.
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