1.物理勘探应用的现状近几年与建筑基础和地下水有关的物理勘探项目平均每年约有900件,其调查对象如表1所示是多种多样的。表1是将地质调查所1979年的“物理勘探、调查研究一览”加以整理修订补充而成,它是1978年取得的实际成绩。在过去5年间呈现出的趋势几 1. Current Status of Physical Exploration Applications The average number of physical exploration projects related to building foundations and groundwater in recent years is about 900. The survey targets are as shown in Table 1. Table 1 is the result of the consolidation and revision of the “physical survey and survey research” of the Institute of Geological Survey in 1979. It is a practical achievement obtained in 1978. A few trends that have emerged in the past five years