地质勘察的目的在于寻求工程建设与地质环境条件之间的最有利结合,使工程建设能够充分利用地质环境条件,尽可能避免或减少地质灾害,从而取得最佳经济效益。以往,我们在工程地质勘察工作中,只重视现场钻孔取样和简单分层、试验等手段,而经常忽视地质调查。由于地质体的物质极为复杂,且刁<断发生着许多复杂的演变,加上人为因素的干扰,使我们得到的结果与自然界的实际状况往往有较大的差别,所以,仅仅利用实验数据,代表性很差。因此,我们在工程地质勘察工作中,首先要进行地质调查,在此基础上再根据具体勘测、实验取得的数据,才能获得真实可信的结果。那么,怎样进行地质调查呢?我们知道,地质工作的根本方法是对工作对象进行观察、记录、描述、采集、鉴定测试并对取得的数据资料及与地质体有关的地质现象和地质作 The purpose of geological survey is to seek the most favorable combination of engineering construction and geological environment conditions so that construction can make full use of geological environment conditions and avoid or reduce geological disasters as far as possible so as to obtain the best economic benefits. In the past, in engineering geological prospecting work, we only paid attention to on-site drilling sampling and simple stratification and testing methods, and we often neglected the geological survey. Due to the complexity of geological bodies and the complicated evolution of earthquakes and the interference of human factors, the results we get often differ greatly from the actual conditions in nature. Therefore, using only the experimental data, Very poor representation. Therefore, in the work of geological prospecting, we must first carry out geological surveys, and on the basis of the data obtained from specific surveys and experiments, we can obtain authentic and credible results. So, how to carry out geological survey? We know that the fundamental method of geological work is to observe, record, describe, collect and test the work object and to obtain the data and geological phenomena related to geology and geology