User:Shariful Islam (Geologist)
"CALCULATION OF SAFE BEARING CAPACITY BASED ON POINT LOAD VALUES & UNIAXIAL COMPRESSIVE STRENGTH & THEIR RELATIONSHIP"
It is very essential to study the engineering properties of a different kind of Rock and predict their behavior in different geological conditions, before taking up any construction. This will help in making economical/optimal design structures as well as helps in recommending measures for preventing from the functional failure of structures, especially, when the rock consists of different discontinuities and weathered in nature. In this study, different rock samples from the Deccan Trap collected and tested in the laboratory for the uniaxial compressive test (UCS) and point Load test. Based on the UCS values different civil structures' safe bearing capacity has been calculated (e.g.-piers and abuts). This study reveals that discontinuity; the texture of rocks and weathering conditions affect the safe bearing capacity of basalt. Based on Point load test of samples and from different locations have a varied value of safe bearing capacity, (e.g. sample 01-37.8; sample 02-35.4; sample 03-24.7; sample 04-22.3; sample 05-24.9; etc.) Based on the uniaxial Compressive Strength test of samples and from different locations have a varied value of safe bearing capacity, (e.g. sample 01-166; sample 02-201.5; sample 03-232; sample 04-206.49; sample 05-245; etc.) The present study helps in understanding the different sample from different location of the basalt rock has varied values of safe bearing capacity, these samples tell us that we cannot consider one specific safe bearing capacity for the basalt rock in general. It can be sometimes higher than the standard value and sometimes it can be significantly lower than the standard value. It has been found through the study that the safe bearing capacity for different samples is different which can be ascribed to the weathering, physical activities, mineral composition, cavities in the rock, fault, etc.
The Load Carrying Capacity of Rock Embedded BCIS In- Situ Piles and Classification of Rock Based on RMR
Safe load capacity of a pile with uniaxial compressive strength for different pile diameter by keeping the correction factor to 1. The safe load capacity of pile increases between 93.1% and 97.5% when UCS increases from 135T/m 2 to 28.95T/m 2 for a pile of diameter variation of 600mm to 1000mm. At constant UCS value (i.e. 13.5T/m 2) the safe load capacity of pile increases with increasing diameter, a significant increase of 180% was noticed when diameter of pile was increased from 600mm to 1000mm. Safe load capacity of a pile with uniaxial compressive strength for different pile diameter by keeping the correction factor to 0.4. The safe load capacity of pile increases between 93.1% and 100% when UCS increases from 135T/m 2 to 28.95T/m 2 for a pile of diameter variation of 600mm to 1000mm. At constant UCS value (i.e. 13.5T/m 2) the safe load capacity of pile increases with increasing diameter, a significant increase of 187.5% was noticed when diameter of pile was increased from 600mm to 1000mm. At shallow depths (<5m) the RMR values for Limestone varied between 47 and 65 and at greater depths (>20m) the RMR values for Limestone varied between 50 and 71. II https://www.researchgate.net/publication/347510366_Assessment_of_Load_Carrying_Capacity_of_Rock_Embedded_BCIS_In-_Situ_Piles_and_Classification_of_Rock_Based_on_RMR