Affected by the outbreak of xinguan pneumonia, the construction of the sino-laoguo-kunming (Ming) wan-xiang railway (China section) from yuxi to bohan railway was in short supply of materials and gravel, and some staff could not return to their posts. In recent days, the construction side in the prevention and control of the epidemic at the same time, overcome difficulties, to promote the project construction.
In the ding tunnel, located at the junction of yuanjiang and mojiang counties, near the front face of the tunnel excavation, construction workers are excavating the rock mass. Stability and tunnel, 17.5 km to all class I high-risk ChangSui, through the towering ailaoshan, total 20 fault and two syncline structure, geological condition is very complex, harmful gases, karst, soft rock and water, high ground stress, high geothermal as a whole, the engineering scale, construction difficulty and risk are extremely rare in the field of domestic railway tunnel construction.
In order to achieve the goal of linking up on schedule, builders adopt the ldquo; Long tunneling short.. Five inclined shafts and a total of seven work areas at the inlet and outlet were set up for construction in sections, with China railway no. 19 engineering bureau and China railway no. 5 engineering bureau each undertaking half of the construction tasks.
& other; After the exit of the tunnel and the completion of the no. 5 inclined shaft, the tunnel tunneled 106,60 meters, exceeding 10,000 meters. Throughout the &; Wang haifeng, manager of the yumo railway project department of the 19th bureau of China railway, said it provides an important guarantee to improve the construction environment and speed up the construction of the tunnel.
Affected by the outbreak of the new coronary pneumonia, some roads in yunnan province are closed, cargo transport is limited, and the local sand and stone production is generally suspended, the supply of raw materials is in short supply. In addition, the construction personnel of each construction site come from different provinces, and due to the epidemic prevention and control and post-holiday off-peak return trip and other factors, some construction personnel have not yet fully entered the site for construction.
In the face of the above difficulties, China railway kunming bureau group corporation and all construction units took the initiative to communicate and coordinate with local governments at all levels to further strengthen the joint prevention and control of road and land, and to promote the construction while preventing and controlling the epidemic.
In terms of epidemic prevention and control, grid management has been implemented, and the layered and piece-by-layer management mode has been implemented. By means of temperature measurement and inspection, ventilation and disinfection, and personal protection, key links such as office sites, construction sites, construction sites and new personnel have been strengthened to effectively strengthen epidemic control.
In order to ensure the construction progress and speed up the construction pace, China railway kunming bureau group co., LTD specially arranged, opened up the green channel, strengthened the transportation organization, rushed the transportation of raw materials such as fly ash in guizhou province, with the daily capacity of about 2400 tons of 80 cars, to yuxi, mengzi, Dali and other cities, and fully met the construction of the railway project under construction.
At present, a total investment of 36.9 billion yuan has been made on the china-laos kun-wan railway (China section), accounting for 73 percent of the designed amount, and more than 80 percent of the construction of extra-large Bridges and tunnels has been completed.
The china-laos railway is an important infrastructure connecting China and Laos. After completion and opening to traffic, the time between kunming and vientiane will be greatly reduced and better served. Bb0 ” Construction.
