At 4:20 a.m. on April 11, 2023，A collapse accident occurred in the left tunnel at the exit of Tianshengqiao Tunnel, a key control project of Linshuang Expressway in Shuangjiang County, Lincang City, Yunnan Province.，About seven workers were trapped at the scene.。

The disaster is an order.。According to the requirements of the leadership of the Emergency Management Department，The National Emergency Rescue Center for Work Safety quickly dispatched a working group to the scene to coordinate and guide the rescue work.，The Kunming Team of the Second Bureau of China Railway was mobilized to dispatch 9 vehicles and 47 people for emergency rescue of the national tunnel.，Carry 37 sets of professional rescue equipment such as big bore horizontal drilling rigs.，Rush to the scene to participate in rescue and rescue。

Liu Pei, Lincang Regional Marketing Manager of Sany Pumping Agent Yunnan Xiangtai Engineering Equipment Co., Ltd.、Service Engineer Yang Biao responded to the assistance needs of Lincang Traffic Bureau at the first time.，Rush to the scene to participate in the rescue。

At 8 o'clock on the 11th，The first life passage is opened.，By striking the steel pipe，Contact the trapped people.；17:00，The second life passage is opened.，Deliver food to the trapped people、Intercom、Flashlights and other items，The vital signs of the trapped people were confirmed to be stable by video.。

13, 2:58，National Tunnel Emergency Rescue Kunming Team Uses Horizontal Drilling Rig to Open Rescue Channel；3:25，The first trapped person was rescued.；3:29，The last trapped person was successfully rescued.！The wounded have been rushed to hospital for treatment.。

“As a large enterprise of construction machinery and emergency equipment，Trinity has never been absent in the face of disasters and accidents.”。Only in the last three years，Sany has participated in 937 disaster and accident rescues.，523 joint exercises，Received more than 300 thank-you letters or commendations，Recognized by the government and society。Future，Sany will continue to strengthen the capacity building of rescue equipment，And in line with international standards.，Make greater contributions to the world，Show the responsibility of heavy equipment。