Urban underground space includes the compact part of soil mass and space of natural or artificial rock-free mass.It is not only an important kind of natural resource,but also a carrier of other underground natural resources.With the continuous development of cities,it is essential to build stereoscopic cities in underground spaces.Since most urban underground space development projects are implemented in soil mass,the cost and challenges of underground engineering construction are closely related with soil mass quality.At present,there are different geological stratification standards of soil engineering in Changzhou.Hence,profiling method was applied for geological stratification of soil engineering(at a depth≤ 100 m)in Changzhou based on mass geological drilling and soil physical and mechanical testing results from urban geological surveys.Besides,comprehensive considerations were given to sedimentation age,material composition and engineering characteristic indexes.The basic stratigraphic structure and layer numbers were established.The geological stratification results were proved reasonable and feasible by discrete performances of physical and mechanical parameters of engineering geological layers as well as the three-dimensional model smoothness.The geological stratification results of soil engineering were applied to various aspects,such as selection of pile bearing stratum,vertical stratification planning of underground space,suitability evaluation of underground space development,collaborative use of several underground resource types.The results can provide basic data and relevant references to the planning,construction and management of urban underground space.
关键词
土体工程地质层/城市地下空间/桩基持力层/适宜性评价/多种资源协同利用/常州市
Key words
soil engineering geological layers/urban underground space/pile bearing stratum/suitability evaluation/collaborative use of several underground resource types/Changzhou City
维普
万方数据