摘要
岩溶地区的地质条件复杂,有岩溶、土洞且裂隙发育,给桩基施工带来诸多困难。虽然旋挖钻机在岩溶地区应用广泛,优势明显,但如果没有可靠的技术措施来控制施工质量,就容易出现钻孔偏斜、塌孔、漏浆等质量事故,影响桩基承载力。现针对岩溶场地,对旋挖成孔灌注桩的施工质量控制措施进行分析总结,为岩溶场地的旋挖桩施工提供参考和指导。
The geological conditions in Karst areas are complex with karst,soil holes and cracks developing,which bring many difficulties to pile foundation construction. Although rotary drilling rig is widely used in Karst area,it has obvious advantages. But if there is no reliable technical measures to control the quality of construction,it is easy to occur quality accidents such as borehole deviation,hole collapse,slurry leakage and so on,and affect the bearing capacity of pile foundation. Aiming at the karst site,the construction quality control measures of the rotary drilling hole filling pile are analyzed and summarized.
出处
《施工技术》
CAS
2018年第S1期93-95,共3页
Construction Technology
基金
云南省重点研发科技计划项目(201606046)
关键词
岩溶地区
旋挖桩
质量控制
研究
Karst area
rotary digging pile
quality control
research
