Question

Q3:- The old building (A) is to be removed and replaced by a new building (B), as shown in Figure (93). The vertical pressure at the center of the clay layer from the building (A) and building (B) is equal to 13.64 kN/m' and 23.3 kN/mrespectively, Find:- 1. O.C.R after removing building (A). 2. The void ratio (e) of the clay layer: a. Immediately after removing building (A). b. After a very long time from removing building (A). 3. Final consolidation settlement of building (B) if to be constructed: a. Immediately after removing building (A). b. After a very long time from removing building (A). 4. Time required to achieve half the final com idation settlement of building (B). (14 points) 2 Old building NOL 2 m SW.T.L AN Sand, y - 15 kN/m2 Clay, y -20% W-30% G = 2.7. C -0.2, C, = 0.04, C = 0.5m/yr 8 m Rock

Soil mechanical

Q3:- The old building (A) is to be removed and replaced by a new building (B), as shown in Figure (93). The vertical pressure at the center of the clay layer from the building (A) and building (B) is equal to 13.64 kN/m' and 23.3 kN/mrespectively, Find:- 1. O.C.R after removing building (A). 2. The void ratio (e) of the clay layer: a. Immediately after removing building (A). b. After a very long time from removing building (A). 3. Final consolidation settlement of building (B) if to be constructed: a. Immediately after removing building (A). b. After a very long time from removing building (A). 4. Time required to achieve half the final com idation settlement of building (B). (14 points) 2 Old building NOL 2 m SW.T.L AN Sand, y - 15 kN/m2 Clay, y -20% W-30% G = 2.7. C -0.2, C, = 0.04, C = 0.5m/yr 8 m Rock

Soil mechanical

Answer 1

Date.. effective shell at Centre of clay layer belse planne any building Co 15(2) +/20 -9.8) 4 > oc 70.96 kn/m2 do Net effective stall after plany building building ④ &c 70.76 + 1967 84.40 kn/m2 (1) OCR after semoving building 0; >) OCR = +0.76 84.4 Pre-consolida spell , OC 289.9 petit 22 OCR = 0.838 (NC soil) (19). word sahib immediately after removing ALT OH Но It lo Initial void ratio lo Iwa wa 0-30) (2:3) loa 0.81 Spiral CSScanned with CamScanner

Sind Date......... AL 1.81 26.0661 ०० AL: 0.0124 Fo, e: 0.81+ 0.012M e 0.8 224 escanned with CamScanner

after blowing New effective shere at mid-clay layer Building 6 70.76 + 23-3 " 94.86 kolm? total settlement f 7 것매 Cr 4 logo 84.40 70.76 teo tl Col I loo 94.06 Heo 2 AH 0-0135m + 0.0416m AH 55.6 mm this settlement is after placing building (6) Eftast seenement) time * 4 xead to achieve 50% of (on); I (0) Cute 172) 7, (0.512 Los myy) to 231 to 187% drainage (to 25.12 years CScanned with Camscanner Spiral