The above research results have provided a strong basis for an accurate study of the influence of engineering properties of environmental soil strata.
以上研究成果为准确研究环境土层工程性质的影响提供了有力的依据。
The DTH percussion-compact drilling is a high efficiency technology drilling in soil strata, which use the impact force produced by hammer piston to crush and compact soil.
潜孔锤冲击挤密钻进技术集冲击钻进、振动钻进及空气钻进的优点于一体，钻进效率高，成孔质量好，在土质地层钻进工程中有着广阔的应用前景。
For pile foundation there are different responses in different soil strata during construction and loading, this phenomenon has practical significance for pile foundation design.
长桩基础在施工及加荷过程中，对不同土质的地基会有不同的影响，这一问题对桩基设计具有一定的实用意义。
For pile foundation there are different responses in different soil strata during construction and loading, this phenomenon has practical significance for pile foundation design.
长桩基础在施工及加荷过程中，对不同土质的地基会有不同的影响，这一问题对桩基设计具有一定的实用意义。
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