Foundation pit engineering is a rich and various field in underground engineering construction, which is also the most complicated technique filed in civil engineering.

基坑工程是地下工程施工中内容丰富且富有变化的领域，是土木工程中最为复杂的技术领域之一。

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The underground pipeline cross interference of city road is an important factor which constrains the whole urban pipeline engineering construction.

城市道路地下管线交叉冲突，是制约整个城市管线工程建设的重要因素。

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Used for destroying solid or frozen stratum in civil engineering, underground construction and people protection construction, etc.

土木工程中及地下建筑、人防施工等工作中，用以摧毁坚固或冻结的地层。

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An example is engineering and construction group Balfour Beatty, one of the preferred bidders for London Underground PPP, which reported in August that PFIs underpinned its 17% rise in underlying profit growth.

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They also enjoy a continuing monopoly over construction and civil engineering projects, from dams to bridges, and highways to metropolitan underground light railways.

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