摘要
水坠砂法是一种适用于沙地,并具有就地取材、低成本、快速高效、操作简单和受天气影响较小等优点的地基处理方法,但目前水坠砂法地基处理尚未纳入正式的国家相关设计规范、施工规范及质量验收标准。通过塔克拉玛干沙漠地基水坠砂法地基处理的现场试验,研究了塔克拉玛干沙漠中部风积沙地区的水坠砂法施工技术与施工工艺参数,并在此基础上提出了适用于塔中地区的水坠砂法地基处理施工流程和相关控制标准。通过对水坠砂法处理过程中的施工变量控制,明确了分层虚铺厚度、水头高度、碾压方式等施工工艺参数对地基处理效果的影响,实现了通过测试压实度或比贯入阻力间接反映地基承载力数值的可能,并可估算相应的地基最大沉降量。
As a foundation treatment method suitable for sandy land,the sluicing-siltation sand method has advantages such as local materials can be used,cost is low,speed is fast and efficiency is high,operation is simple and it is less affected by the weather.However,it has not been written in official relative design codes,construction specifications and quality acceptance criteria in China.Through the field test of sluicing-siltation foundation treatment in Taklimakan Desert,the construction technology and construction process parameters of the sluicing-siltation sand method in the aeolian sand region,which in the center of Taklimakan Desert,are studied.researched.Based on that,construction process of the sluicing-siltation sand method and relative control standards which apply to Tazhong area is proposed.Through the control of construction variables in the process of the sluicing-siltation sand method,the influence of construction process parameters including layered virtual depth,water head height and rolling means on the effect of foundation treatment result is determined.In addition,the possibility of indirectly reflecting foundation bearing capacity by testing degree of compaction or specific penetration resistance is realized,and the max earth subsidence also can be estimated.
出处
《油气田地面工程》
2018年第4期17-20,共4页
Oil-Gas Field Surface Engineering
关键词
沙漠地基
水坠砂法
地基处理
压实度
比贯入阻力
施工工艺
desert foundation
sluicing-siltation sand method
foundation treatment
compaction degree
specific penetration resistance
construction process
