29岁的铁路综控员党鑫蕊放弃了原定的云南假期，转而加入重装徒步志愿队前往灾区[1]。7月初，广西遭遇连续强降雨，镇龙乡多个村庄遭受洪灾、泥石流和山体滑坡[1]。7月13日，党鑫蕊确认参加这次救援任务，次日凌晨4点15分，他背负30斤物资出发[1]。
当天的环境条件异常恶劣，最高气温达到35摄氏度，路程中的6公里水泥路基已被冲毁[1]。下午4点左右，在距离终点三分之一处，党鑫蕊因长时间负重、高温和睡眠不足导致心功能衰竭而昏迷[1]。医务人员在下午6点4分赶到现场，对他进行了持续3小时的抢救，但最终未能挽回他的生命[1]。当晚，民警和村民共30人进山运送遗体，耗时近30小时[1]。
Party Xinrui, a 29-year-old railway control operator at Meishan East Station in Chengdu, Sichuan, abandoned his planned vacation in Yunnan to join a heavily-loaded trekking volunteer team delivering supplies to flood-affected areas in Hengzhou, Guangxi [1]. On July 14, while returning from the mission, he collapsed due to prolonged physical exertion under extreme heat and sleep deprivation, suffering acute cardiac failure approximately one-third of the way from the destination [1].
The mission followed consecutive heavy rainfalls in early July that devastated multiple villages in Zhenlong Township, triggering flooding, mudslides, and landslides [1]. Party confirmed his participation on July 13 and departed at 4:15 a.m. on July 14, carrying 30 kilograms of supplies along a 6-kilometer cement road base that had been partially destroyed by floodwaters [1]. As afternoon temperatures reached 35 degrees Celsius, he began experiencing dizziness and lost consciousness around 4 p.m. [1]
Medical personnel reached his location at 6:04 p.m. and conducted rescue efforts for three hours, but were unable to save him [1]. A team of approximately 30 police officers and villagers subsequently spent nearly 30 hours trekking into the mountains to retrieve his body [1].
