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With the rapid development of China’s power industry, the construction of mountainous area transmission line infrastructure faces numerous challenges in deep foundation pit excavation technology. Traditional manual operation of water-grinding drills for drilling holes presents issues such as high construction difficulty, low efficiency, and safety hazards under complex mountainous terrain conditions. This study aims to develop a water drilling device that serves as an alternative to traditional manual operation modes. The device primarily consists of three parts: a support mechanism, a rotational mechanism, and a drilling mechanism. It features a double scissor structure installed on both sides with a maximum extension diameter of up to 1.8 m. By utilizing Ansys finite element software for strength simulation verification of its main components, the device ensures that its structural integrity meets the required standards. This apparatus not only significantly enhances construction efficiency but also reduces construction costs, meeting the basic requirements for deep foundation pit excavation operations.

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Structural Design and Analysis of a Water-Grinding Drilling Device for Mountain Rock Foundations

  • 会议论文

  • 发表日期：

    2026年

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  • Zhen Chen,
  • Naiwen Xu,
  • Hao Chang,
  • Guohua Deng,
  • Bin Wang,
  • Yongquan Tong,
  • Jian Sun,
  • Cheng Li

摘要

With the rapid development of China’s power industry, the construction of mountainous area transmission line infrastructure faces numerous challenges in deep foundation pit excavation technology. Traditional manual operation of water-grinding drills for drilling holes presents issues such as high construction difficulty, low efficiency, and safety hazards under complex mountainous terrain conditions. This study aims to develop a water drilling device that serves as an alternative to traditional manual operation modes. The device primarily consists of three parts: a support mechanism, a rotational mechanism, and a drilling mechanism. It features a double scissor structure installed on both sides with a maximum extension diameter of up to 1.8 m. By utilizing Ansys finite element software for strength simulation verification of its main components, the device ensures that its structural integrity meets the required standards. This apparatus not only significantly enhances construction efficiency but also reduces construction costs, meeting the basic requirements for deep foundation pit excavation operations.