摘要
城市地质环境是人造环境与地质环境的复合物，从城市建设特征与地质体特征两个方面进行综合研究是十分必要的，城市用地是城市对地质体施加作用的代表物，建立地层组合模型可以有效地刻划第四系工程地质特性，城市建设对城市区域地下水物理化学场的扰动并引起土体结构强度变异是极为重要的。
City becomes larger and larger than it used to be in scale,which brings a lots of problem,such as growth of population,expendation of the landuse's area,and change of geological environment for city construction. Relationship of city construction,geological environment and disaster is interdependent and interactive one anther.Development of city is restricated by geological environment.For expample,the layout of a urban district and landuse of functional district of city are influenced by geomorphic terture,hydrological conidition etc.When geological environment work continously to rely on itself law,city construction disturbs it continously.As development of “work”and “disturb”can't be well coordinated,accomulative energy released abruptly and geological disaster happens. Land use is a major form of city's geological affection.It does not only rely on geological environment,but also change and disturb geological environment.it is a symbol substance which city exerts its action on geological body.So it is necessary to study many problems to be involved with city environmental quality and city construction by viewpoint of systematical engineering and engineering geological mechanics. To extablish layer constituent model can classify engineering geological nature of soilmass in different city district.It can describe engineering geological property of Quaternary sediments.It also study engineering property of soilmass by viewpoint of engineering geological mechanics,and instruct effectively engineering under construction field. Development and enlargement of city damages original“three Water Cycle”.It changes underground water's hydrological geochemical field,and damages former balance botween adsorption and corrosion which leads to the chang of longterm's strength of soilmass.In a sense exemple,the change of undergroundwater hardnss in ten years in Nanning city indicates that city construction makes a notable impact on geological environmental quality. On the basis of a plenty of reasearch about method and relationship of city construction,geological environment and disaster,the author point out and discuss the study's key problems and the way forward to study,among which are:Does geological body in city district exist the maxium safe carring capacity?Will the climatic environment which city construction forms change property of geological body?And how to take initiative in adopting measure to adjust secondary geological environment to protect city sofety?
出处
《地质科学》
CAS
CSCD
北大核心
1999年第1期107-115,共9页
Chinese Journal of Geology(Scientia Geologica Sinica)
基金
国家自然科学基金
广西自然科学基金
广西高校跨世纪学科带头人培养对象专项基金
