Question 5 Enumerate the types of laboratory triaxial test you would specify to be carried out in connection with the following field problems: (a) the stability of a clay foundation of an embankment, the rate of construction being such that some consolidation of the clay occurs; (b) the initial stability of a footing on saturated clay; (c) the long-term stability of slope in stiff fissured clay. TTAWA DROIT D'AU OTTAWA MATERIAL PAR LE OITATEUR st prot pag ledroit Ire de e mên c atériel de cos is, veuillez s rs. TERIAL copyright an to upload th ation, please

Question 5 Enumerate the types of laboratory triaxial test you would specify to be carried out in connection with the following field problems: (a) the stability of a clay foundation of an embankment, the rate of construction being such that some consolidation of the clay occurs; (b) the initial stability of a footing on saturated clay; (c) the long-term stability of slope in stiff fissured clay. TTAWA DROIT D'AU OTTAWA MATERIAL PAR LE OITATEUR st prot pag ledroit Ire de e mên c atériel de cos is, veuillez s rs. TERIAL copyright an to upload th ation, please

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Hi, can you please solve this exercise? Thank you!
Problem (2.8):The load-settlement data obtained from load test of a square plate of size (1ft) are as shown below. If a square footing of size (7t) settles (0.75 inch), what is the allowable soil pressure of the footing? Consider sandy soil. Load (Tsf) Settlement (inch) 10 0.4 14 0.6 16 0.8 19 1.0 0.1 0.2 0.3
Q1/ The results of a load test carried out on a plate of size 30 cm x 30 cm are given in Table below. The load test was carried out at a depth of 2.5 m, below ground surface. The soil profile is fairly homogeneous sand at the site. From the test results: a. determine the settlement of an actual foundation of size 2.5 m x 2.5 m carrying a total load of 155 ton and located at a depth of 2.5 m below the ground surface. b. What is the bearing capacity of foundation if the settlement of plate 12.6 mm. Load intensity 0.496 0.992 1.488 1.984 2.48 2.976 3.472 3.968 4.464 496 kg/em Settlement, 0.5 1.0 1.8 2.75 4.4 5.4 9.8 12.5 17.0 28.7 mm
Plate load test is adopted globally to determine in-situ bearing capacity of the subsoil and considered as one of the most important field test for any big construction project. A plate load test was conducted on a 300 mm side square plate at a depth of 1.10 m below the ground level in pure clayey soil for an important construction site. Failure of the soil occurred at a load of 45 kN. i. Calculate the safe bearing capacity of a 1.5 m wide square footing founded at a depth of 1.5 m in the same sub-soil. Assume the total unit weight and factor of safety of 18.2 kN/m and 2.0 respectively. ii. State any three limitations of the above mentioned test carried in field.
Scenario The wall footing at right is to be constructed to carry an inclined load at 85 degrees with the horizontal, as shown. Assume that there is impenetrable bedrock below the Sample point shown in the figure. 1) Calculate the expected primary settlement of the soil at the Sample point. Also, determine the time it will take for 60% of the expected primary settlement to occur. 2) Determine the factor of safety against bearing failure of the soil for the wall footing if qult of the soil is 160 kN/m2.
- civil engineering- soil mechanics
Q#4: Plate load test performed on a uniform deposit of sand and the following observations were recorded. The size of the plate was 45cm x 45cm. Plot the Pressure-Settlement Curve and determine the safe load on a footing 2m x 2m if the settlement is not to exceed 40mm. Pressure (kPa) 2 4 8 12 16 24 Settlement (mm) 3 6 20 40 60 100 Note: Write the proper answer in word format Subject: Geotechnical Design
Soil please do both questions.
Problem #4 At a development site in Cebu, City, a plate-load test was conducted on soil whose properties resemble that of sand. The plate used in this PLT is 62 cm square. The ultimate load per unit are (qu) for the test was found to be 620 kN/m2. What should be the maximum allowable load of a 2.5 m square footing? Use a factor of safety of 3. Answer in N.
:Answer with "True" or "False" for the following statements. 1- For all modes of failure heaving of soil will occurs on both sides of footing at final collanse 2- General shcar failure will exist when the relative density of sandy soil is less than thirty percent 3- For all types of soils the ultimate bearing capacity is increased with the increasing in size of footing. 4- When the relative density of sandy soil is more than (67%) there is no need to take into consideration the effect of soil compressibility in the calculation of ultimate bearing capacity. 5- For the footings that loaded eccentrically, only the part of the footing that is symetrical with regard to the load is used to determine bearing capacity by the useful width method.
A contractor was given a task which requires that the void ratio e, be less than 0.80. The base of the structure given to him was already compacted with water content and unit weight of the soil to be 14.6 % and 18.2 kN/m3respectively. He experimentally determined the specific gravity of the soil to be 2.81. Analyze the task of the contractor and determine if the results of his experiment would comply with the task given him
After the soil samples are taken and the soil properties determined, the engineer must design the foundation. It typically takes the engineer 4.75 days to design a foundation with a standard deviation of 0.83 days. Use this information and the information provided in Problem I to answer the following questions: a. What is the probability of completing all of the work (field sampling, testing, and design) within 43.5 days? b. The engineer completes the field sampling and testing in 36 days. What duration of the design work should be planned in order to ensure with 85% confidence that all of all of the work will be completed within 43.5 days?