MODULE 6 (HYDRO-GEO) PROBLEM NO. 1 (Topic: Footing; B!"ing #!p!cit$ o% &oi') A footing 1 m square carries a total load, including its own weight, of 59,130 kg. The base of the footing is a depth of 1 m below the ground surface. The soil strata at the site consist of a laer of sti! saturated cla "#.5 m thick o$erling dense sand. The a$erage densit of the cla is 1,%&' kg(m3. )se Ter*aghi+s Ter*aghi+s ultimate bearing capacit equation. The footing is subected to general shear failure. a.- etermine the the gross foundation pressure. pressure. b.- etermine the o$erburden o$erburden pressure. pressure. c.- etermine the ultimate bearing capacit of the the soil. d.- Assuming local shear failure, determine determine the ultimate bearing capacit of the soil.
PROBLEM NO. 0 (Topic: Footing; B!"ing #!p!cit$ o% &oi') A footing ' m square carries a total load, including its own weight, of 10,000 k/. The base of the footing is at a depth of 3 m below the ground surface. The soil strata at the site consist of a laer of sti! saturated cla "#.5 m thick o$erling dense sand. The a$erage bulk densit of the cla is 1,9"0 kg(m3 and its a$erage shear strength determined from undrained triaial is 130 k/(m " and 20. a.- etermine the gross gross foundation pressure in k4a. k4a. b.- etermine the the net foundation pressure. pressure. c.- alculate the factor of safet of the foundation against complete shear failure under the undrained condition 6both gross and net-. 7ide cohesion on the foundation on the foundation ma be neglected. 1 68):; '-
n: !.) 055.+ P!; .) 001. P!; c.) .652 3.*
PROBLEM NO. (Topic: Footing; B!"ing #!p!cit$ o% &oi') A circular footing ".5 m in diameter is shown in the
n: !.) 1,,3.7 P!; .) 77*.7 P!; c.) 3+++.+ N
" 68):; '-
PROBLEM NO. 3 (Topic: #!p!cit$ o% Pi' g"o8p) A 0.3' m square prestressed concrete pile is to be dri$en in a clae soil as shown in the i$en= )ndrained shear strength, qu2111 k/(m" )nit weight of clae soil21%.5 k/(m 3 a.- ompute the end bearing capacit of pile if /c29 b.- ompute the skin friction epected to de$elop along the shaft of the pile c.- ompute the length of the pile if frictional constant ?20.#' n: !.) 63.53 N; .) 6**.06 N; c.) 1,.57 /
PROBLEM NO. * (Topic: #!p!cit$ o% Pi' g"o8p) The pile group shown in the
c.- ompute the maimum center@to@center spacing of the piles for 100 eBcienc.
n: !.) 1,21+7.0 N; .) 1526,, N; c.) 5+ //
PROBLEM NO. 6 (Topic: #!p!cit$ o% Pi' g"o8p) The foundation shown in the
n: !.) +5.5* P!; .) 65.1 P!; c.) 133.0 //
