Foundation analysis and design
Citations
4 citations
Additional excerpts
...77561025 N mm23 for medium sand (Bowles, 1982)....
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4 citations
Cites methods from "Foundation analysis and design"
...1) Step Purpose Standard Penetration Test (SPT) S1 Step1- Before blast tests Initial properties Cone Penetration Tests (CPT) P2 Step1- Before blast tests Initial properties Cone Penetration Tests (CPT) P3 Step1- Before blast tests Initial properties Cone Penetration Tests (CPT) P4 Step1- After small charges tests (12g) Induced difference Cone Penetration Tests (CPT) P5 Step1- After small charges tests (12g) Induced difference Seismic Tomography (ST) L3 Step1- Before blast tests Initial properties Seismic Tomography (ST) L4 Step2- After large charges tests (1200g) Induced difference Surface Wave Tests (SWT) L1 Step1- Before blast tests Initial properties Surface Wave Tests (SWT) L2 Step1- Before blast tests Initial properties Surface Wave Tests (SWT) L4 Step1- Before blast tests Initial properties Step2- After small charges tests (12g) Induced difference Step2-After large charges tests (1200g) Induced difference On the basis of the empirical correlations suggested by Skempton [12], the relative density of the soil within the excavation surrounding the pipe was estimated, together with the corresponding friction angle, by means of the empirical approach proposed by Schmertmann [13] for medium sand, and the soil stiffness, on the basis of the empirical correlations proposed by Bowles [14] for gravely sand (Fig....
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...On the basis of the empirical correlations suggested by Skempton [12], the relative density of the soil within the excavation surrounding the pipe was estimated, together with the corresponding friction angle, by means of the empirical approach proposed by Schmertmann [13] for medium sand, and the soil stiffness, on the basis of the empirical correlations proposed by Bowles [14] for gravely sand (Fig....
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4 citations
4 citations
Cites background from "Foundation analysis and design"
...…the standard penetration test was proposed to establish the relationship between the elastic modulus of clay soils and the standard penetration test, which can provide a relatively good estimate of the modulus of elasticity with the standard penetration test (Cu = 0.06 * N30 (SPT))(Bowles 1996)....
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...However, most relationships are associated with granular soils (Das 1983, Bowles 1996) In cohesive soils, the relationship is mainly expressed in terms of the strength from the cone penetration test....
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4 citations
Cites background or methods from "Foundation analysis and design"
...…proposed the following simple relationship to obtain a range of nh values for shallow piles: ( )2 30h Z K to B = (in kcf unit (kcf = 159 kN/m3)) (7) Bowles (1996) gave the most general form for either horizontal or Salman et al. 2263 vertical modulus of sub-grade reaction, which is: n s s sK A B…...
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...Bowles (1988) stated that, for bored piles, the reinforcing bars may be required only in the upper region for moments that are carried by the shaft, because these moments dissipate with depth are hence the shaft load is primarily axial at about L/2. At this depth, temperature changes are not great; therefore, longitudinal and spiral reinforcements are not required. Tomlinson and Woodward (2008) stated that reinforcement is not needed in bored piles unless uplift loads are to be carried (uplift may occur due to the swelling and shrinkage of clays)....
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...For this reason, a computer program (PLRN) is modified from that given in Bowles (1988) to check the depth through which the reinforcement will only be required to cover the tension zone of the pile....
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...Bowles (1988) stated that, for bored piles, the reinforcing bars may be required only in the upper region for moments that are carried by the shaft, because these moments dissipate with depth are hence the shaft load is primarily axial at about L/2....
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