某滨江大堤砂卵石层勘察钻探工艺优化

Optimization of Exploration and Drilling Process of Sandy Pebble Layers in a Riverside Dike

在调研国内砂卵石层钻探工艺的基础上,根据重庆地区砂卵石层特点,优先选择满足勘察规范要求的综合钻探工艺措施。同时自行设计研制了JC89钻具,在砂卵石层勘察施工中取得了较好效果。

On the basis of researching domestic drilling technology in sandy pebble layers, according to the characteristics of sand gravel layer in Chongqing area, the comprehensive drilling technology measures that meet the standard were preferentially chosen. Meanwhile, we have designed and developed the JC89 drilling tool for the work, and better results have been achieved in the construction survey of sandy pebble layers.