A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An Improved Technique for Prebored Pressuremeter Tests
Abstract The prebored pressuremeter (PBP) test results depend on the quality of borehole, including its diameter, verticality, effectiveness of cleaning, and degree of wall disturbance. The true elastic modulus cannot be reasonably determined using the cavity pressure-strain curves measured in a borehole of poor quality. In this research, a stainless-steel casing (SSC) was devised to improve the quality of borehole. SSC of 1 to 4 m length was conjugated with a mechanical drilling system (MDS). At a test site, an auger and the MDS with or without the SSC were attempted to drill boreholes for the PBP tests. Among the three techniques, the MDS with SSC produced the reliable values of the initial elastic modulus at a low strain range (0.003% to 0.089%).
An Improved Technique for Prebored Pressuremeter Tests
Abstract The prebored pressuremeter (PBP) test results depend on the quality of borehole, including its diameter, verticality, effectiveness of cleaning, and degree of wall disturbance. The true elastic modulus cannot be reasonably determined using the cavity pressure-strain curves measured in a borehole of poor quality. In this research, a stainless-steel casing (SSC) was devised to improve the quality of borehole. SSC of 1 to 4 m length was conjugated with a mechanical drilling system (MDS). At a test site, an auger and the MDS with or without the SSC were attempted to drill boreholes for the PBP tests. Among the three techniques, the MDS with SSC produced the reliable values of the initial elastic modulus at a low strain range (0.003% to 0.089%).
An Improved Technique for Prebored Pressuremeter Tests
Masoud, Zubair (author) / Khan, Ammad Hassan (author)
KSCE Journal of Civil Engineering ; 23 ; 2839-2846
2019-05-29
8 pages
Article (Journal)
Electronic Resource
English
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