Soil pressure control is one of the most important technology of pipe pushing engineering with earth balance shield machine.

土压平衡式顶管掘进机机头泥土仓土压力控制是顶管工程中最关键的技术之一。

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Based on the relation of pile with earth, cancel the slab to design container foundation adopting high intensity prestressed pipe pile.

根据桩土体系之间的关系，取消承台，对罐基础采用高强预应力管桩的桩土复合地基设计。

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Then, improving measures about instrument pipe, air-power coming out of earth, reducing friction were emphasized.

着重介绍了对切土头、气压出土、减摩等工艺的技术改进措施。

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New techniques have been developed to "sidetrack" a well when the pipe gets stuck or to control the pressures and temperatures found five miles down into the earth's crust with blow-out preventers and special purpose high-tech drilling rigs.

FORBES: A Gold Mine In Oil Exploration