广西大新县通报一铅锌矿项目区域发生地面塌陷：已制定治理方案

Core Points - A ground subsidence incident occurred on September 3, 2025, at the lead-zinc mine project in Nongtun Village, Daxin County, resulting in a sinkhole approximately 10 meters in diameter and 7 meters deep, with no casualties reported [1][4]. Group 1: Incident Response - Following the incident, the Daxin County Committee and government promptly organized emergency management and relevant departments to the site, establishing safety cordons and evacuating nearby residents [1][4]. - The involved company, Guangxi Hengmaiyuan Mining Co., Ltd., was ordered to suspend operations entirely [1][4]. Group 2: Investigation and Analysis - Preliminary investigations by an expert group indicated that the subsidence was primarily due to the area's unique geological conditions, characterized by unstable top layers and independent boulders, exacerbated by recent heavy rainfall [1][4]. Group 3: Remediation Measures - A remediation plan involving concrete filling for the sinkhole has been developed, and efforts are underway to communicate and coordinate with local villagers to expedite the implementation of these measures [1][4]. - To prevent similar incidents, geological monitoring points have been established in the affected area, and dynamic monitoring and early warning systems are being implemented [1][4]. - Additional engineering measures, including rerouting auxiliary slopes and increasing advanced drilling, are being adopted to gain a comprehensive understanding of the geological conditions [1][4].