Geotechnical zoning in Hai Duong province for construction planning

Information on geology and engineering plays an important role in construction activities, forecasting adverse problems, and choosing the foundation solutions. The management and use of this information on the basis of zoning geological conditions will contribute to ensure the sustainability in economic exploitation of the territory in general and in construction development in particular. This paper presents the results of analysis, evaluation, and systematization of geological, tectonic, geomorphological, hydrogeological, and engineering geological data in Hai Duong province from the point of view of engineering geology. In particular, the geological conditions for construction are evaluated on the basis of classification of soil and rock of F.P Xavarenski and standard TCVN 9362-2012. Accordingly, soil and rock in the study area are divided into 5 groups: hard rock (I), semi-hard rock (II), cohesiveless soil (III), cohesive soil (IV) and soft soil (V) and then they are classified according to construction properties. Applying the partitioning method of I.V. Popov, the geotechnical conditions of the study area are divided into 3 zones: I, II, III and 3 sub-zones (III.a, III.b, III.c). On that basis, engineering geology problems in each zone and sub-zone are analyzed and evaluated as the basis for planning, serving for digitization and integration relating to digitized maps.