Evaluate the RQD for the rock core shown below according to ASTM D6032. L- 100 mm - 80 mm L = 100 mm L-0 L= 300 mm L- 150 mm L=180 L- 250 mm Total Core Run = 1200 mm 66.7% Oa. b 96.7% 56.7% Od 71.7% Does not meet soundness Piecess 100 mm and highly weathered Mechanical break, - caused due to drilling operation No recovery

Evaluate the RQD for the rock core shown below according to ASTM D6032. L- 100 mm - 80 mm L = 100 mm L-0 L= 300 mm L- 150 mm L=180 L- 250 mm Total Core Run = 1200 mm 66.7% Oa. b 96.7% 56.7% Od 71.7% Does not meet soundness Piecess 100 mm and highly weathered Mechanical break, - caused due to drilling operation No recovery

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Describe about the Unconsolidated–undrained (U–U) triaxial test data relationship between total stress, effective stress, and pore water pressure.
prem the effective pressure of 207 kN/m², changed to 0.932 when the pressure was increased to 430 kN/m². In a consolidation test, the void ratio of the specimen which was 1.052 under Calculate- (a) Coefficient of compressibility (b) compression index (c) the coefficient of volume compressibility. AILY
An SPT test was conducted in a dry sand (no ground water table) with a unit weight of 18kN/m3. The drill rig used had an energy efficiency rating of 60%. The recorded blow counts were 6, 7 and 8. The depth of testing was 6 m. Use the Liao and Whitman (1986) correction for overburden stress to determine the corrected SPT value at this depth. N60=? CN=? (use 3 decimals) N1(60)=? (truncated to an integer value)
In a consolidation test the following results have been obtained. When the load was changed from 50KPA to 100kPa, the void ratio changed from 0.70 to 0.65 a) Determine the coefficient of compressibility
sand deposit has been identified beneath a site located adjacent to a river. The sand deposit is 15 feet thick and the top of the layer is 12 feet below the ground surface and overlain by a very stiff clay and is underlain by bedrock. The water level has been measured to be at a depth of 10 feet. The standard penetration resistance of the layer has been determined to be 12 blows per foot and a standard sampler was used; a drill rig with a safety hammer with an efficiency of 60% was used. The length of the drill rod is 10 meters and the borehole diameter is 5 inches (127 mm). The design earthquake has been designated as a moment magnitude 6-3/4 event on a nearby fault and the maximum ground acceleration is expected to be 0.40 g. The wet unit weight of the clay soils is 150 pounds per cubic foot and the wet unit weight of the sand soils is 180 pounds per cubic foot. The sands have 35% fines content according to a grain size analysis. Compute the factor of safety against liquefaction of…
The fresh mix with 5mm slump magnitude is more likely to get segregated * True False
B. Differentiate between the following: (i) Porosity and effective porosity (ii) Bulk unit weight and dry unit weight (iii) Tri-axial compressive strength and unconfined compressive strength (iv) Saturated-surface-dry and saturated-submerged of a rock mass
A new underground Lead-Zinc-Silver mine is planned to start at a depth of 1200 m below the surface level with an annual ore production of 2 million tons. After performing insitu testing, it was found that the proposed mine site is having very high horizontal stresses compared to the vertical stresses. Based on the given situation, what stability and ground control challenges will be there in your opinion and how you will manage them in a most effective manner without compromising with the safety and stability
The main difference between Unconfined compression test and triaxil compression test is that in this test the confining cell pressure is kept zero during the test, in fact it is a special case of triaxial test with zero side presure. True False
The following results were obtained from a series of consolidation undrained (CU) shear test. Determine the cohesion and the angle of shearing resistance.
Not site specific I am checking calculations
Which of the following test CANNOT be classified as a type of triaxial test? All of them are triaxial test Consolidated Drained O Unconfined Compression O Unconsolidated Undrained Consolidated Undrained