Doing a "Fallback" for World Cultural Heritage
The beautiful water is beautiful, the spring color is pleasant, and the endless flow of ships shuttles on the Beijing-Hangzhou Grand Canal. With the strong winds in early spring, the construction site of the Nanxun-Tongxiang section of the Sutai Expressway and the Tongxiang-Deqing Liaison Line (Phase II) (hereinafter referred to as the "Sutai Expressway (Phase II)") project is undergoing bridge deck construction.
The construction on the edge of the World Cultural Heritage Site is a beautiful scenery but not a small challenge. Due to its location in the Hangjiahu Plain, there are no speed bumps at all due to strong winds, and such weather conditions have also brought a lot of impact to the construction.
The ecological and environmental protection requirements of the ancient canal are high, and the builders have made sufficient preparations for safety and environmental protection measures in the planning stage. "We have made an integrated design of the safety protection facilities here, such as the edge protection mesh on the bridge deck is 30 centimeters higher than the conventional one, achieving a height of 1.5 meters, and also made a closed design below to prevent construction waste from falling. Pan Qiang, deputy manager of the TJ04 standard project of Sutai Expressway (Phase II) of CCCC First Public Bureau, introduced, "There is also a fully enclosed bottom protection platform under the bridge to prevent falling objects from high altitudes and ensure the safety of navigation." In addition, this bottom protection platform adopts the mode of centralized processing and prefabrication in the back field and splicing and installation in the front field, which reduces the formation of construction waste on the site and further protects the ecological environment of the construction site from the source.
Volunteers from the project department also carried out regreening activities in areas without construction disturbances.
Sink safety and environmental control to every vehicle
Daily sprinkling check-in
Since the beginning of this year, the Sutai Expressway (Phase II) project has entered a critical period of production and construction, and more and more people, equipment and materials need to be transported to the construction site, especially near the second work area of the project TJ02, there are dozens of "fully armed" engineering vehicles in and out within an hour, which also makes the safety control and environmental protection pressure of the project rise rapidly.
Since TJ02 jointly undertook the construction of the second phase of Sutai Expressway and the third ring road west road in Tongxiang City, it has been facing the problem of co-construction of upper and lower floors. In order to reduce the impact of the surrounding environment, the project strengthened source control in the early stage of construction, not only carried out concrete hardening "beauty" on all construction roads, but also arranged the circulation of each vehicle.
"At present, we have entered a critical stage of full construction and ash filling, with hundreds of material trucks entering and exiting every day, so we have taken some measures for safe production and environmental protection. Zhou Xiangying, deputy manager of Zhejiang Jiaotong Hongtu Sutai Expressway (Phase II) TJ02 standard project, said, "First of all, the details of the control are accurate to each driver, and a positioning system is installed for each vehicle to grasp the vehicle information and ensure the safe travel of the vehicle; ”
The construction and the ancient canal were discussed
With a total length of about 44 kilometers, a total investment of about 18 billion yuan and a construction period of 36 months, the Sutai Expressway (Phase II) project is the first county-level expressway project with independent investment of over 10 billion yuan in China. Due to the particularity of the geographical location, in order to better protect the Beijing-Hangzhou Grand Canal, since the start of the project, the whole process of the project has practiced the construction path of "cultural relics protection", "green environmental protection" and "cultural inheritance", and explored a refined green environmental protection plan. In the construction of the upper span of the ancient canal, it not only innovatively uses the new composite beam structure of double-layer steel box 110m large span and the construction technology of "cantilever + large section hoisting", but also makes efforts from green construction, recycling and other aspects to protect the clear water of the thousand-year-old canal.
Mao Lihua, assistant to the commander and director of the project management office of the Sutai Expressway (Phase II) Consulting Project of the Digital Intelligence Traffic Institute, introduced that at present, the project has returned to the state of the peak period of construction, and on the basis of doing a good job in basic actions such as green co-construction, the main focus is on the construction of subgrade filling, bridge substructure, beam and plate prefabricated installation and bridge deck system, so as to achieve a good start.
Editor|Lin Weifan
Characters|卢衎羽
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