提出夯扩头最大直径计算方法，并对沉管桩和夯扩桩的经济效益进行分析比较。
The calculation methods of maximum diameter of ram extension hair is put forward.
在含有大量生活垃圾形成的复杂软弱层中，按常规方法施工沉管桩，将造成严重的缩径现象。
In the complex soft layer contained large quantity of living rubbish, construction on sinking tubular pile with conventional method, will lead on to reduce tube diameter.
根据沉管挤密碎石桩和CFG桩组合型地基的承载机理和特性，分析了该组合型复合地基承载力的计算方法。
According to the bearing mechanics and characteristics of pipe sinking gravel compaction pile and CFG pile the bearing capacity calculation method of this combined composite foundation is analyzed.
研究了黏弹性土中管桩沉桩后的固结问题。
The problem of the soil consolidation after tube-pile driving was studied.
为了研究在沉管碎石桩复合地基场地中沉入预制桩的可能性，进行了预制桩沉桩试验。
Precast pile driving test is performed to investigate its possibility in gravel pile composite foundation with settling tube.
近年来，振动沉管碎石挤密桩在处理饱和黄土地基方面得到了相当广泛的应用。
In recent years, the close-packed macadam piles are widely used in dealing with saturated loess base.
探讨了沉管干振碎石桩对土层的加固效应。
The compaction effect on the soil by dry vibrated gravel columns is discussed.
介绍大直径预应力高强度管桩的沉桩技术，以及沉桩过程中的注意事项和问题处理。
An introduction is given to sinking technology for large diameter prestressed high strength tubular pile, and issues for consideration during sinking and treatment of problems encountered.
空气幕、套管内干取土沉管灌注桩这种新的施工工艺是通过套管内取土，套管外设空气幕来减少沉管阻力。
A new pile-driven technology named air curtain dry soil withdrawal can reduce resistance of a sinking pipe by withdrawing soil from the pipe and installing air curtain on the outside of pipe.
新型灌注沉桩机采用偏心块振动式机构，强迫振动土壤破裂下沉桩管。
The new type of pile engine of grouting adopts structure of eccentric block vibration, setting pile by forced vibration soil to be broken.
振动沉管碎石桩用于处理液化土地基具有诸多优点，文章通过一工程实例介绍了振动沉管碎石桩的设计要点，施工方法，质量检测及处理效果等。
The tests made before and after the construction show that this technology has a good effect on reinforcing the foundation and eliminating the soil liquefaction.
通过试验证明振动沉管碎石桩在排水性能、减少地基不均匀沉降、提高地基承载力等方面具有卓越的成效。
By test shows that vibro replacement stone columns in the drainage performance, reducing differential settlement of foundation, improving the bearing capacity and so has excellent results.
在现场试验基础上，研究沉管干振挤密抗拔防浮碎石桩在拉压循环荷载和拉拔循环荷载下单桩及其抗拔钢筋的性状。
Based on the in-situ tests, the behaviors of single diving dry-vibrated compacted and anti-pull stone column with steel bars are studied during the compression-uplift cyclic loading.
在现场试验基础上，研究沉管干振挤密抗拔防浮碎石桩在拉压循环荷载和拉拔循环荷载下单桩及其抗拔钢筋的性状。
Based on the in-situ tests, the behaviors of single diving dry-vibrated compacted and anti-pull stone column with steel bars are studied during the compression-uplift cyclic loading.
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