Geotechnical Engineering

DHARM 560 GEOTECHNICAL ENGINEERING where Ppn = normal component of the passive earth pressure on a plane contact face with a hei ...

DHARM BEARING CAPACITY 561 The problem of Nc and Nq has been rigorously solved by means of Airy’s stress function (Prandtl 1920, ...

DHARM 562 GEOTECHNICAL ENGINEERING a rapidly increasing settlement and the relation between stress and settlement is approxi- ma ...

DHARM BEARING CAPACITY 563 If the stress-strain relations are intermediate between C 1 and C 2 in Fig. 14.9, the bear- ing capac ...

DHARM 564 GEOTECHNICAL ENGINEERING For a continuous footing of width b, it is already seen that, qult = cNc + γDf Nq + 0.5 γ b N ...

DHARM BEARING CAPACITY 565 Meyerhof ’s equation for the bearing capacity of a strip footing is of the same general form as that ...

DHARM 566 GEOTECHNICAL ENGINEERING In fact, the experimental relationships deduced by Skempton are not exactly linear with respe ...

DHARM BEARING CAPACITY 567 25 20.72 10.66 8.11 30 30.14 18.40 18.08 35 46.13 33.29 40.69 40 95.41 75.32 64.18 45 133.89 134.85 2 ...

DHARM 568 GEOTECHNICAL ENGINEERING 14.5.9Balla’s Method Balla has proposed a theory for the bearing capacity of continuous footi ...

DHARM BEARING CAPACITY 569 The steps involved are as follows : (i) The ratios Df /b and c γb are determined. (ii) The parameter ...

DHARM 570 GEOTECHNICAL ENGINEERING If the water table is above the base of the footing, the reduction factor for the third term ...

DHARM BEARING CAPACITY 571 Df zq zg b 1.0 9.0 8.0 0.7 0.6 0.5 0 0.2 0.4 0.6 0.8 1.0 z/D orz/bqf g RorRq g b (a) Location of wate ...

DHARM 572 GEOTECHNICAL ENGINEERING That is to say, qnet ult = qult – Df ...(Eq. 14.104) qns = qnet ult η ...(Eq. 14.105) qs = qn ...

DHARM BEARING CAPACITY 573 (ii) Plastic compression of the underlying soil, giving rise to consolidation, settlement of fine gra ...

DHARM 574 GEOTECHNICAL ENGINEERING (iii) Treatment of the foundation soil...to encourage the occurrence of settlement even befor ...

DHARM BEARING CAPACITY 575 Channel 5bp Steel Timber support girders Test plate 5bp Plan Fig. 14.15 Set-up for plate load test Th ...

DHARM 576 GEOTECHNICAL ENGINEERING Information regarding the bearing capacity may be obtained from the pressure-settle- ment cur ...

DHARM BEARING CAPACITY 577 where S = settlement of the proposed foundation (mm), S (same units) p = settlement of the test plate ...

DHARM 578 GEOTECHNICAL ENGINEERING The results of the load test are first plotted to natural scale and the early straight por- t ...

DHARM BEARING CAPACITY 579 *14.10 BEARING CAPACITY FROM PENETRATION TESTS Penetration tests are those in which the resistance to ...