注：统计范围为施工总承包、专业承包的法人建筑业企业(下表同)。

Note: Statistics covers general contracting and specialized contracting construction enterprises as legal persons (same to the below table).

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利用地质雷达探测能准确地提供管线的平面位置和埋设深度等情况，为施工管理提供可靠依据。

Applying geological radar can provide the plain position of pipeline and the buried depth, condition are summarized, affording the reliable basis for construction management.

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施工场地的范围是有限的，本文通过实测，取得安全距离数据，为施工场地的布置提供了依据。

Field of construction is limited. This paper obtains data of safety distance via practical measuring. The data can use for reference to dispose field of construction.

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