土工类专业试题（Geotechnical examination questions）.docVIP

土工类专业试题（Geotechnical examination questions） Geotechnical Fill in the blanks 1. (drying) is a standard method for determination of water content in soil, the soil time shall not be less than (8) hours for sand soil shall not be less than (6) hours of T soil organic matter containing more than 5%, should be in control of temperature (65-70 DEG C) under constant temperature. 2. the inhomogeneous coefficient Cu of soil reflects the range of soil particle distribution. The curvature coefficient Cc describes the shape of the soil particles 3. soil consists of the following three parts (solid phase), (liquid phase) and (gas). 4. commonly used method of soil density (with cutting ring), (sand filling method), (wax sealing method) (irrigation), etc.. 5. the plasticity index of soil means the difference between the liquid limit and the plastic limit of soil. The larger the IP, the higher plasticity of soil. 6. soil compaction test aims to obtain (maximum dry density) and (optimum water content), the small test cylinder is suitable for soil with particle size not greater than (25) mm; large test cylinder using particle size is not greater than (38) mm soil. 7. soil compaction test, test cylinder humidification soil quality 3426.7g, test cylinder quality 1214g, test cylinder volume 997cm3, soil sample water content 16.7%, then soil sample dry density is 1.90 (take decimal 2) 8. of the three constituents of soil Answer: the three components of the soil: particles (Gu Xiang), water (Ye Xiang), gas (gas phase) 9., what are the three states in which the water works? Answer: solid, liquid, gas 10. soils may be composed of phase bodies (two phase bodies and three phase bodies) 11. physical properties of soil indicators: Answer: (1) density, soil particle density, dry density, soil moisture content, saturated density, floating density, pore ratio, porosity and saturation (2) calculation of porosity; Answer: n=Vv /V 12. water content test, water content refers to what water, including