■ Citizens show the way: Zhongshan Road in Zhao Laobo's eyes
Zhao Shihong, a 60-year-old man, witnessed the changes of Zhongshan Road in the past 36 years. According to him, he came to work in this city as early as 1969. At that time, Zhongshan Road was just a small street, with only two-story buildings on both sides and some shops near the People's Shopping Mall. At that time, the only asphalt road in the city (from Minxin River in the west to Sports Street in the east) was a narrow dirt road from east to west. At that time, the existing railway station underpass bridge had not been repaired, and only a narrow and shabby underpass bridge on the south side connected the things on Zhongshan Road. At that time, the section from the railway station to the people's shopping mall was the most prosperous section at that time, but the road width was less than 10 meter, and pedestrians and vehicles were not separated at all.
Zhao Laobo said that for decades, what he felt most was the change of Zhongshan Road. The road is widening and flattening day by day, and there are more vehicles on the road, and the tall buildings on both sides of the road are gradually rising. The road was divided into fast lane and slow lane, and then the sidewalk was repaired. In recent years, even the gray sidewalk bricks used on both sides for many years have been replaced by colored sidewalk bricks with different styles and colors. The road under the citizens' feet is so lively and detailed day by day. In recent years, bus lanes have also appeared on this "model road" and Zhongshan Road has become more and more beautiful.
■ The repairman's mind: The "scarred" road is heartbreaking.
As the most common road and bridge maintenance worker in this city, Kang Suli has different feelings about roads. Starting from 1995, she is responsible for the maintenance of all roads north of Zhongshan Road and east of Beijing-Guangzhou Line. She said that in the past ten years, every time I walked on this ever-changing road, I always felt particularly practical. She had different feelings about the most prosperous road in Shijiazhuang that year. However, in recent years, road diseases have appeared continuously on Zhongshan Road, which are very serious. Especially after the bus lane was put into use, ruts and bumps appeared everywhere on the road surface, which became a heart disease for her and her workers.
■ Department soundtrack: It has not been overhauled for decades.
Yan from the Maintenance Section of the Municipal Road and Bridge Management Office knows the road conditions of Zhongshan Road like the back of his hand. According to her introduction, Zhongshan Road was seriously damaged due to its early construction. According to the national regulations, the main roads are overhauled every 15 years, and Zhongshan Road has been in service for many years. Due to the limitation of funds and traffic conditions, Zhongshan Road has been widened year by year for many years, from one board with an initial width of seven or eight meters to three boards with a width of more than ten meters. The separation of fast and slow lanes and pedestrian walkways has changed a lot today, but it has never been overhauled on a large scale in recent years.
According to Yan, in the past two years, because the bus lane of Zhongshan Road was restricted by the isolation guardrail, the bus stopped at the same position for a long time, resulting in the serious damage of 18 to the bus-only platform. Zhongshan Road has reached the point where it must be overhauled.
■ Look at the plan carefully: How will Zhongshan Road be overhauled?
According to reports, Zhongshan Road is the main urban road that runs through the provincial capital from east to west. The scope of transformation starts from Sports Street in the east and ends at Zhonghua Street in the west. The sections of this overhaul include railway bridge approach road-Sports Street, railway underpass bridge and approach road, and Zhonghua Street-west approach road of railway bridge.
The concrete reconstruction scheme is as follows: the east approach road of railway bridge-the expressway of sports street section, and its subgrade is reinforced by shallow grouting method. 18 strengthening the bus platform with early strength cement concrete. Local maintenance of non-motor vehicle lanes, dredging all rainwater pipes, replacing some damaged rainwater collection pipes, etc.
The railway tunnel and the approach expressway are treated with pavement foundation respectively. On the basis of the existing cement pavement, the approach pavement is paved with geotextile and geogrid, and the surface is covered with asphalt concrete. At the same time, the original 4 cm asphalt pavement in bridge opening is covered with new technology. The local damaged part will be treated in the west approach section of Zhonghua Street Railway Bridge. Small motor vehicle lanes with a width of 3.3 meters are added to local trains on both sides of the approach bridge of the underpass railway to form six two-way motor vehicle lanes. The retaining wall of the approach bridge is appropriately moved outward, and the existing non-motor vehicle lanes and widened parts are reconstructed, reinforced and newly built according to the standards of secondary roads. During the overhaul, the local damaged parts of the west approach road of Zhonghua Street Railway Bridge will be treated, and the pavement will be treated by micro-surfacing technology.
■ Click on the details: the construction is more humanized.
Citizens also show great concern about the overhaul of Zhongshan Road, because it will directly affect people's smooth travel. In this regard, the staff of the Zhongshan Road Reconstruction Project Command told reporters that this construction pays more attention to the human side. According to him, in order to comprehensively coordinate the construction progress, quality management, traffic arrangement and public coordination, they set up an eight-person working group to coordinate the reconstruction of Zhongshan Road respectively.
□ Take more measures to reduce the interference caused by construction.
In order to ensure the normal passage of citizens, the construction will adopt the method of combining section and half width to minimize the disturbance to the masses and the impact on traffic. In order not to affect the citizens' travel, all the previous processes are stopped, and the last process, the whole road coverage, is arranged in May 1.
□ Overhaul project is divided into two stages.
In order to ensure the normal traffic, the municipal traffic control department also made arrangements. According to the requirements, the overhaul project of Zhongshan Road will be carried out in two stages, from February 2 1 to March 10, and the construction section is Zhongshan Road underpass bridge-sports street section; The on-site construction time is from 22: 00 p.m. to 6: 00 a.m. the next day. The method is to construct one lane on each side without dismantling the central isolation, continuous traffic and enclosure. From April/KLOC-0 to May 8, the road renovation phase will be carried out by sections, and the site construction time will be from 22: 00 pm to 6: 00 am the next day. The way is to build a lane on each side, without dismantling the central isolation, continuous traffic and no enclosure.
□ 10 intersection should be marked.
During the construction period, traffic signs will be set at the intersections of Zhonghua Street, Zhanqian Street, Dajing Street, Ping 'an Street, Jianshe Street, Qingyuan Street, Guang 'an Street, Yucai Street, Tiyu Street and Zhongshan Road.
□ All construction will be carried out at night.
All construction will be carried out at night and evacuated during the day. The public security traffic department will patrol during the construction period to know the traffic flow of the construction section in time. Because the overhaul is half a section, the West Bridge and the East Bridge Brigade will arrange police forces at both ends of the underpass bridge to ensure that the traffic on the construction section is not blocked.
■ Highlight enhancement: Four new processes are adopted for the first time.
According to the person in charge of Zhongshan Road Overhaul Command, as the most important overhaul of Zhongshan Road, the provincial capital, many departments have devoted great efforts. At the same time, four new technologies were adopted for the first time in the construction to ensure the normal completion of the project in terms of speed, quality and time limit.
Early strength cement: adding early strength agent to cement can improve the early strength of cement concrete and shorten the curing time of cement, from the previous 7-day curing period to 24-hour curing period.
Micro-surfacing treatment: hard and tiny rock particles are added to emulsified asphalt and spread on the pavement to prevent moisture from entering the pavement base, so as to reduce the damage of water to the pavement.
Use polyester fiber: polyester fiber is added to ordinary asphalt concrete to improve its high temperature resistance and reduce the occurrence of wrapping and rutting.
Perforation grouting: Perforation on the original pavement and injection of early strength cement to reinforce the subgrade. Overhaul and reconstruction do not need to destroy the road surface, and can also reduce dust pollution.
■ Link: Changes of Zhongshan Road
Before 1937, Zhongshan Road was just a 350-meter-long alley called Muchang Street.
1June 1937, Japanese imperialism invaded Shijiazhuang.1June 1939, Muchang Street was turned into a street with a width of 32 meters and named Chaoyang Road. After 1940, it extends westward to the flood control dike. From Weiming Street to the present North China Military Region Martyrs Cemetery, there is a gravel road in the west and a dirt road in the west. 1945 Japanese invaders surrendered and later renamed Zhongshan Road. 1947165438+1October, Zhongshan Road was reconstructed in sections; 195 1 year, asphalt pavement with a width of 12m will be paved on both sides of the original cement concrete pavement of Zhonghua Street. 1953 Widen both sides of the original 12m wide pavement by 6m, and the pavement width is 18m.
Zhongshan Road starts from the flood dike in the west and ends at Shengli North Street in the east. After the completion of Zhongshan Road underpass bridge, it is connected with Jiefang Road in the east, which is the central main road connecting east and west in the urban area. 1982 geographical names census and standardization are divided into Zhongshan East Road, Zhongshan Middle Road and Zhongshan West Road.
1 996 65438+1October1,Shijiazhuang Geographical Names Office officially renamed Chang 'an Road and Jiefang Road (to the intersection of Beijing and Shenzhen Expressway) as Zhongshan East Road, and Zhongshan Middle Road and Zhongshan West Road (to the administrative boundary of Luquan City) as Zhongshan West Road.