The degree of soil looseness is expressed by the coefficient of looseness. Initial loose coefficient: ks = v2/v1; Final loose coefficient: K's=V3/V 1. Where the initial coefficient of unconsolidation of soil (ks); Final coefficient of soil looseness (k); V 1 volume of soil in natural state; Volume of V2 soil in loose state; V3 Compacted volume of soil.
Type I (soft soil) ks1.08 ~1.17, k1.01.04; The second kind (ordinary soil) ks1.14 ~1.28, k's1.02 ~1.05; The third kind (hard soil) ks1.24 ~1.30; S1.04 ~1.07 of k; The fourth kind (gravel sand and hard soil) Ks 1.26~ 1.37 and k s 1.06~ 1.09.
Extended data:
Requirements for budget calculation stipulate that:
1. Divide the field according to the layout of ditches and roads, and take the area surrounded by two adjacent agricultural ditches, ridges and field roads (ditches or ditches) as a field. Measure the area of each plot directly from the topographic map of 1:2000.
2. After molding, the elevation (based on the elevation of the Yellow Sea and the relative elevation of the house), leveling area and angular coordinates must be marked in the topographic map or plan after molding (topographic map after leveling the site).
3. The elevation data used in the measurement process can only be used after being approved by the supervisor, Party A and the audit, and the elevation calculation approved by them should be adopted. If layered calculation is needed, drawing is necessary, which is the basic condition of measurement.
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