Quality Control of the Stacking of Coarse Fragmental Soil in Test Pits of Reduced Size in the Construction of Dams

Aripov, N. F.; Kiselev, N. P.; Lyudva, S. A.; Piotrovskii, A. S.

doi:10.1007/s10749-018-0948-7

Cited by 2 publications

(1 citation statement)

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“…There are two types of exploration for carrying out the geotechnical studies of a project, such as destructive and non-destructive methods [11]. Among the destructive methods are tests such as test pits [12,13]; Static cone (CPT) [14] or dynamic (DCP) [15]; Dilatometer [16,17]; and the Standard Penetration Test (SPT) [18,19]. Nondestructive methods are geophysical tests widely used in engineering fields to study the subsoil [20].…”

Section: Introductionmentioning

confidence: 99%

Correlation of SPT and Seismic Refraction Tests to Obtain Dynamic Soil Parameters. Palestina, Guayas-Ecuador

Guadalupe-Méndez¹,

Vargas-Jiménez²,

Morante-Carballo³

et al. 2023

IJSDP

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Obtaining dynamic soil parameters is key to assessing hazards in civil works. Soil characterisation contemplates field measurements and interpretations that require a comprehensive analysis for the design to offer guarantees. The Palestina-Ecuador canton is affected by heavy rains in winter, cutting off more than 16,000 inhabitants. The integral study of effective techniques for constructing bridges is a priority for the sector's economic development. This work aims to obtain dynamic parameters through the correlation of tests (Standard Penetration Test) SPT and seismic refraction for the characterisation and viable design of civil works in the Palestina-Ecuador canton. The research methodology consists of three phases: 1) Approach to fieldwork by gathering basic information; 2) Field measurements (SPT tests and seismic lines) and laboratory; 3) Correlation and analysis P-wave seismic velocity (Vp) and SPT for determination of dynamic parameters. The subsoil presents Quaternary alluvial sediments, where soft clays and loosely compacted silts predominate. The execution of 140 SPT tests in the laboratory of eight perforations allowed the correlation with six seismic refraction lines in the four precincts of interest for the construction of bridges: El Carmen, La Corona, Las Peñas, and Lagarto estuary, the field tests were distributed. The technical analysis resulted in a linear regression equation that correlates N60-Vp and the establishment of in-situ dynamic parameters (Cohesion and internal friction angle). These calculations made it possible to formulate a correlation equation that presents a validated method for this canton, due to data correlation; providing a tool that allows a detailed and economic characterisation for the rural sector. However, it is necessary to establish other places of analysis to strengthen the proposed equation.

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