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Título

The Advantage of The Use of The Concept of Match Quality of Settlements in The Dynamic Load Test

Palavras-chave

Match Quality of Settlements (MQS), Static Load Test (SLT), Dynamic Load Test (DLT), CAPWAP, Davisson Offset Limit, Pile Settlements

Resumo (no máximo 200 palavras)

Murakami and Massad (2014, 2016) proposed a method to determine the shaft quake values in the Dynamic Load Test (DLT). Based on the concept of Match Quality of Settlements (MQS), the signal-matching analysis was performed to adjust the slope of the load vs. settlement curve at the early loads of the Static Load Test (SLT). Initially, the MQS concept was a mathematical expression that measured the difference between the SLT and DLT's load vs. settlement curves. This procedure provided good results for precast concrete piles. However, in the following years, it was observed that the MQS concept also applies to other pile types. Furthermore, Murakami (2019) improved the MQS concept through a graphical solution, plotting the settlements of the SLT vs. DLT for each load increment of the SLT. Traditionally, the SLT and DLT results are compared by the Davisson Offset Limit, requiring a minimal toe displacement. Besides, it displays two points on the load vs. settlement curves, one for the SLT load and the other for the DLT load. This paper aims to present the advantage of the MQS concept: all the points of the SLT curve are compared with the DLT curve, not requiring a minimal toe displacement.

Palavras Chave

CAPWAP; Davisson Offset Limit; Dynamic Load Test (DLT); Match Quality of Settlements (MQS); Pile Settlements; Static Load Test (SLT)

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