China News Service, Luding, September 28 (Reporter Wang Peng) On the morning of the 28th, under the organization of the Sichuan Provincial Department of Transportation, the Sichuan Road and Bridge Rescue Commando of Shudao Group successfully cleared the emergency passage of the tunnel section from Zhengjiaping to Lianhe Village on the S217 Provincial Highway .
At the same time, the production and living channels from the Lianhe Village Tunnel to Wandong Village and Wanggangping Township to Fawang Village were all opened, marking that all national and provincial trunk roads, county and township roads blocked by the earthquake were all blocked by the emergency channel, which lasted 24 days.
Li Lin, member of the Party Committee and Chief Engineer of the Highway Bureau of the Sichuan Provincial Department of Transportation, introduced that affected by the "9.5" Luding earthquake, a total of 120 broken roads occurred on 5 national and provincial trunk roads at the epicenter, and 420 breakpoints appeared on 40 rural roads.
In particular, the entire section of the S217 provincial road from Luding to Shimian collapsed, and the road was interrupted for a length of 59 kilometers, of which 19 kilometers of the key road section (excluding other branch line sections) was needed.
The S217 provincial road, which runs along the Dadu River, was severely damaged in the Luding earthquake.
Photo by Liu Zhongjun
"The damaged S217 is the most severely damaged road among the national and provincial highways since the Wenchuan earthquake. It has the longest time to clear and the most difficult road to clear." Li Lin said, taking the key road of 19 kilometers as an example , the road surface to the subgrade is almost completely destroyed, and there are still more than 20 large and small landslide points, most of which are close to the mountains and waters, and become high-level landslide points under the action of the earthquake, resulting in gravel, landslides, In the event of a landslide, etc., it is extremely difficult to get through.
Faced with the difficulties of landslides with many and wide distribution points, few operating points, narrow operating areas and inconvenient equipment transportation, in order to get through the road as soon as possible, Sichuan Road and Bridge of Shudao Group, under the unified deployment of the Sichuan Provincial Department of Transportation, cooperated with Sichuan Province. The emergency supplies reserve center and other relevant units invested 16 powered boat bridges, 8 assault boats, 5 speedboats, and 6 maritime patrol boats. All relevant units actively cooperated and took multiple measures to overcome the difficulty of rushing through.
Yuan Feiyun, commander of the emergency headquarters of Shudao Group's earthquake and disaster relief site, told reporters that the emergency rescue team opened five landing points on the S217 provincial road, and at the same time assembled five powered boat bridges into a mobile water operation platform with a bearing capacity of It is the first time in the history of domestic earthquake relief that a powered boat bridge is used as a vehicle. By transporting large rescue equipment and personnel to the landing point, simultaneous operation at multiple points is realized, which greatly improves the efficiency of emergency repairs. "
The picture shows the scene of the S217 provincial highway rushing through.
Photo by Liu Zhongjun
In addition, due to the continuous aftershocks during the rescue process, the mountain has the risk of falling gravel and collapsing at any time. In order to ensure the safety of the employees involved in the rescue work and successfully complete the rescue mission, the rescue and disaster relief commando adopted a "spider man" to climb to the A high-level observation post is set up above the operating point, and manual cleaning is used to eliminate the unstable boulders from falling. Surface safety posts and other means ensure that dangerous situations are discovered at the first time, and operators are notified in time to avoid danger.
At the same time, the rescue team also innovatively used long-arm excavators to operate, with a maximum effective working radius of 16 meters, which greatly reduces the safety risk of equipment operators.
In this earthquake rescue work, the Sichuan Road and Bridge rescue commando of Shudao Group has cleared more than 348 blocked points and 224.3 kilometers of roads (including village roads), with a total of 6,569 rescue personnel, 1,158 excavators, and loaders. 793 units, 378 units of slag trucks, 126 units of cranes, 36 units of generators, and 454 people were rescued and transferred.
Li Lin said that the post-disaster reconstruction work has been started, and the Sichuan Provincial Department of Transportation is preparing the reconstruction project plan, and is improving it according to the needs of the site.
At present, in order to ensure safety, traffic control is implemented to rush the passage of the road section, and it is temporarily closed to social vehicles.
(Finish)