Scholarlink

<p>At the end of 2023, a sinkhole occurred above the centre of the solution mining cavern field in Maceió, which the seismic monitoring system had forewarned of weeks earlier. The development of sinkholes is predestined by a low level of confinement (horizontal stress) in the overburden, as is the case in the Maceió deposit in a graben structure, and by the role of fluids in controlling the failure mechanism in the formation of chimney-like fracture tubes. Based on analytical and discontinuous HM-coupled 3D models with shear strain softening at joints and bedding planes, the mechanism of sinkhole formation can be explained.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sinkhole Formation over a Solution Mining Cavern Field in Maceió, Brazil: Analysis of the Geomechanical Processes — Part II

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年8月3日

查看全文
  • Wolfgang Minkley,
  • Christoph Lüdeling,
  • Mathias Nest,
  • Dirk Naumann

摘要

At the end of 2023, a sinkhole occurred above the centre of the solution mining cavern field in Maceió, which the seismic monitoring system had forewarned of weeks earlier. The development of sinkholes is predestined by a low level of confinement (horizontal stress) in the overburden, as is the case in the Maceió deposit in a graben structure, and by the role of fluids in controlling the failure mechanism in the formation of chimney-like fracture tubes. Based on analytical and discontinuous HM-coupled 3D models with shear strain softening at joints and bedding planes, the mechanism of sinkhole formation can be explained.