(2) Urgent, understand the calculation process of soil mechanics test questions, thank you, heroes.
In this question, "The main building of Shanghai Jinmao Building is 88 stories high" is useless and will not be considered. The solution to this problem: ask the building height, just use "9×45=405m" ~ ~ This is mine.
(3) Ask experts to help answer the questions (Soil Mechanics and Foundation)
( 1)B(2)C(3)A(4)C(5)A(6)B(7)C(8)B(9)C( 10)B
Don't forget to give points, haha
(4) Dear elders, who can give me some questions about soil mechanics and foundation over the years?
//isud.cn/down.asp？ cat _ id = 13 & amp； class_id=202
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⑤120006 Soil Mechanics and Foundation Engineering (Volume A)
The average weight of soil in the foundation surface and groove is 20kN/m? . We assume that the gravity of muddy soil is 16N/m? .
Based on the calculation of 1m strip foundation, the bearing capacity of the foundation is not revised because the width of the foundation is not more than 3m, the buried depth is not more than 0.5m, and the upper layer is cohesive soil. Fa is still 190kpa. 1.0× 2.0×190 = 380kn > 300+2.0× 0.5× 20 = 320kn. Then the bearing stratum is safe. However, the bearing layer is only 2.5-0.5 = 2.0 thick, so it is necessary to check the bearing capacity of the underlying layer.
Es 1/ES2 = 9/ 1.8 = 5, z/b=2/2= 1, and the pressure diffusion angle is 25. Calculated pk=320, pc=2.0× 16=32.
According to the formula of GB50007, pz = b (PK-PC) ÷ (b+2ztan25) = 2 (320-32) ÷ (2+1.86) =149.22 (kpa).
149.22 > 90 does not meet the safety requirements!