Secondly, following the theoretical preparation of CFG piles composite foundation is the optimization design theory.
在CFG桩复合地基设计计算理论准备充分的情况下，引入了最优化设计理论。
The treatment of the soft foundation under the culvert and channels and in a certain area behind of abutment adopted CFG piles.
位于软基路段桥台背一定范围内，涵洞、通道基底的软基，采用预压反开槽后复合地基粉煤灰碎石桩加固处理。
Both composite foundations of CFG piles and compacted cement-soil piles are very effective methods of foundation consolidation technology.
CF G桩复合地基和夯实水泥土桩复合地基都是十分有效的地基加固技术，但很少有将两者组合应用于地基处理中。
The 25 test data of the composite foundations of CFG piles collected from all over the country are processed statistically according to reliability theory.
利用可靠度理论对从国内收集到的25组CFG桩复合地基承载力试验数据进行了概率统计处理。
Through an applied example of CFG piles plus compacted short cement piles to form a composite subgrade in collapsible loess district. The design method is introduced.
通过CFG长桩加夯实水泥土短桩的多桩型复合地基在湿陷性黄土地区的应用实例，介绍了该种类型复合地基的设计方法、施工工艺。
Serious necking quality problems often appear when the CFG piles construction technology of long spiral drill pipe by pump pressure apply in some disturbed sensitive soil areas of Taiyuan.
长螺旋钻管内泵压CFG桩施工技术在太原部分地区扰动敏感性土中应用时，常出现严重缩径质量问题。
This paper describes the construction technology, the quality control measures and the technical and economical benefits of CFG piles composite foundation of Ningbo Lianfeng residential quarter.
介绍宁波联丰住宅小区CFG桩复合地基的施工工艺、质量控制措施及技术经济效果。
When natural soil, higher bearing capacity and soft substratum in influence depth, cannot satisfy the request of bearing capacity and deformation, CFG piles are adopted to strengthen soft substratum.
天然地基土承载力较高，但基础影响深度范围内存在软弱下卧层，不能满足设计要求的承载力和变形时，采用CFG桩法对软弱下卧层进行加固处理。
The calculation methods of bearing capacity and settlement and testing methods of CFG and lime piles composite foundation are put forward.
同时介绍了cfg桩和石灰桩形成的多元复合地基的承载力和沉降的计算方法及检测方法。
CFG pile is short for the cement fly-ash gravel pile, which is mixed to a high bond strength pile with sand and water. CFG pile composite is formed by CFG pile, the soil between piles and cushion.
CFG桩是水泥粉煤灰碎石桩的简称，它是由水泥、粉煤灰、碎石、石屑和砂加水拌合形成的高粘结强度桩，和桩间土、褥垫层一起形成复合地基。
CFG pile is short for the cement fly-ash gravel pile, which is mixed to a high bond strength pile with sand and water. CFG pile composite is formed by CFG pile, the soil between piles and cushion.
CFG桩是水泥粉煤灰碎石桩的简称，它是由水泥、粉煤灰、碎石、石屑和砂加水拌合形成的高粘结强度桩，和桩间土、褥垫层一起形成复合地基。
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