上海地区浅层不良地质勘察注意问题

Problems for Attention in Survey of Shallow Bad Geology in Area of Shanghai

上海地区浅层不良地质条件主要有暗浜、液化、厚层填土、沼气等,其中暗浜和厚填土在勘察工作中往往因重视程度不够,或者勘察手段缺乏针对性,导致其范围和性质不能探查清楚,给后期工程建设带来较大影响,特别在市政道路、桥梁工程中其影响尤为突出。根据市政道路桥梁工程建设中的一些常见问题及案例,对暗浜和厚填土的勘察工作提出了一些建议。

The shallow geological conditions in the area of Shanghai are mainly the hidden creeks,liquefactions, thick filling, biogas and so on, in which the ranges and properties of the hidden creek and thick filling cannot be often explored clearly in the survey work because of the insufficient emphasis degree, or the reconnaissance means lack of pertinence, which bring the greater influence on the following engineering construction, especially on the municipal road and bridge projects. Based on some common problems and typical cases in the engineering construction of municipal road and bridge, this paper puts forward some suggestions for the survey of hidden creek and thick filling.