The research on the operating technology and load transfer mechanism of super long-large diameter bored pile;
通过土钉抗拔力学模型探讨了高压注浆土钉的抗拔荷载传递机理，简单介绍了其施工工艺。
The current standard mainly establishes at the aim of short intermediate pile, the design method of the long and large diameter bored piles is less targeted and its applicability is not wide.
当前的规范主要是针对中短桩建立而成的，对于超长大直径钻孔灌注桩的设计，其针对性不强，存在适应性问题。
The bearing capacity of super-long and large-diameter bored pile tip is influenced by the facts including construction process, depth effect, size effect and so on.
阐述了超长大直径钻孔灌注桩桩端承载力的影响因素，包括施工工艺、深度效应和尺寸效应等。
Construction technology and quality control of large diameter super-deep bored pile under complex geological condition are introduced.
介绍在复杂地质情况下超深大孔径桩基施工技术和质量控制措施。
Effects of grouting on the bearing behavior of bored pile are analyzed with the finite element method in accordance with the test results of large diameter over length piles.
结合大直径超长桩试桩得到的试验资料，应用有限元方法分析了压浆对大直径超长钻孔灌注桩承载性能的影响。
Sutong Bridge located in the tidal reach adopts the pile-group foundation with large-diameter and over-length bored piles working with the steel casing together.
位于潮汐河段的苏通大桥采用大直径、超长钻孔灌注群桩基础，而且需要考虑钢护筒的共同作用。
Sutong Bridge located in the tidal reach adopts the pile-group foundation with large-diameter and over-length bored piles working with the steel casing together.
位于潮汐河段的苏通大桥采用大直径、超长钻孔灌注群桩基础，而且需要考虑钢护筒的共同作用。
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