140 17. Groundwater inflow into wells and waste water ………………
143 18. Engineering-geological classification and physical and mechanical properties of soils …………………………………..
146 19. General composition and physical properties of soils …………
148
298
20. Mechanical properties of soils …………………………………..
155 20.1. Mechanical properties of soils…………………………………….
155 20.2. Friction and friction fose in compaction of soils………………..
158 21. Description of engineering -geological places and rocks ………
160 22. Aerial photography and aerial visual observations ……………
165 22.1. Interpretation features of the main types of mountain ash
described in aerial photographs…………………………………...
