Geotechnical Engineering

DHARM 380 GEOTECHNICAL ENGINEERING By symmetry the stress σz at 0 at 4 m depth is four times that caused by one load. ∴σz = 4 80 ...

DHARM STRESS DISTRIBUTION IN SOIL 381 = 25/π kN/m^2 = 7.96 kN/m^2. Example 10.5: The load from a continuous footing of 1.8 metre ...

DHARM 382 GEOTECHNICAL ENGINEERING (ii) for point A 2 , θ 0 = tan. . −^118 =°. 12 56 31 = 0.9828 rad. σ 1 = 180 0 9828 0 8321 π ...

DHARM STRESS DISTRIBUTION IN SOIL 383 (i) Square Area: Imagine, as in Fig. 10.25, the area to be divided into four equal squares ...

DHARM 384 GEOTECHNICAL ENGINEERING Depth z = 1 m. q = 450 kN/m^2 2m 4m PW Q 1m SV R TU IV III II I A¢ 0.5 m Fig. 10.26 Stress at ...

DHARM STRESS DISTRIBUTION IN SOIL 385 ∴σz = 450(0.1936 + 0.2290 + 0.1368 + 0.1202) = 305.8 kN/m^2. Example 10.9: A rectangular f ...

DHARM 386 GEOTECHNICAL ENGINEERING Area IV: m = 0.5/1 = 0.5; n = 1/1 = 1 IσIV= 1 4 205105 1 1 05 1 1 05 1 05 1 2 05 1 1 205105 1 ...

DHARM STRESS DISTRIBUTION IN SOIL 387 More complicated loadings such as line load, strip load, circular loaded area, and rectan ...

DHARM 388 GEOTECHNICAL ENGINEERING Q uestions and Problems 10.1 State the basic requirements to be satisfied for the validity of ...

DHARM STRESS DISTRIBUTION IN SOIL 389 10.14 A strip load of considerable length and 1.5 m width transmits a pressure of 150 kN/m ...

11.1 INTRODUCTION Foundations of all structures have to be placed on soil. The structure may undergo settlement depending upon t ...

DHARM SETTLEMENT ANALYSIS 391 which gives an idea of the depths of various characteristic zones of soil at the site of the struc ...

DHARM 392 GEOTECHNICAL ENGINEERING below the water table. The consolidation characteristics are determined for representative so ...

DHARM SETTLEMENT ANALYSIS 393 below the clay remains constant, it will cause only slight increase in the intergranular pres- sur ...

DHARM 394 GEOTECHNICAL ENGINEERING Standard Penetration Test This test which is popularly used for cohesionless soils is describ ...

DHARM SETTLEMENT ANALYSIS 395 The use of charts: The actual number of blows, N, from the standard penetration test has to be cor ...

DHARM 396 GEOTECHNICAL ENGINEERING It = Influence Value, which is dependent on L/B (This is analogous to Iσ of chapter 10). For ...

DHARM SETTLEMENT ANALYSIS 397 Immediate Settlement of a Thin Clay Layer The coefficients of Tables 11.2 and 11.3 apply only to f ...

DHARM 398 GEOTECHNICAL ENGINEERING The principle of superposition may be used for determining the settlement underneath any poin ...

DHARM SETTLEMENT ANALYSIS 399 Time-rate of settlement: Time-rate of settlement is dependent, in addition to other fac- tors, upo ...