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Instrumentation System for Ground Vibration Analysis During Sheet Pile Driving
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics. NCC Construction Sverige AB, Stockholm, Sweden.ORCID iD: 0000-0002-7763-0348
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics. NCC Construction Sverige AB, Stockholm, Sweden.
2015 (English)In: ASTM geotechnical testing journal, ISSN 0149-6115, E-ISSN 1945-7545, Vol. 38, no 6, UNSP GTJ20140275Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

To enable the study of the sheet pile-soil interaction during driving, it was essential to have a record of the sheet pile vibrations as well as the vibrations at depth in the surrounding soil. In this paper, an instrumentation system for vibration analysis during vibratory sheet pile driving was presented. The instrumentation system was used in a full-scale field test where vibrations were measured on the sheet pile as well as at depth in the ground. The new instrumentation system and the field test were thoroughly described. As a sheet pile was driven into the ground, vibrations were transferred both at the toe and along the shaft. Whether it was the toe or the shaft that created the largest contribution to vibrations in the ground is debated in literature. Results from the field test were presented in order to investigate the effect of the position of the sheet pile toe on the ground vibrations at depth. It was shown that, within a distance of about 1.6m from the driven sheet pile, the ground vibrations at depth were affected by the passing of the sheet pile toe. The current field test also indicated that the toe contributed to more ground vibrations than the shaft.

Place, publisher, year, edition, pages
AMER SOC TESTING MATERIALS , 2015. Vol. 38, no 6, UNSP GTJ20140275
Keyword [en]
vibration analysis, sheet pile, vibratory driving, instrumentation, full-scale field test
National Category
Geotechnical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-179165DOI: 10.1520/GTJ20140275ISI: 000365082300013Scopus ID: 2-s2.0-84956868521OAI: oai:DiVA.org:kth-179165DiVA: diva2:882302
Note

QC 20151214

Available from: 2015-12-14 Created: 2015-12-11 Last updated: 2017-03-20Bibliographically approved
In thesis
1. Vibration transfer process during vibratory sheet pile driving: from source to soil
Open this publication in new window or tab >>Vibration transfer process during vibratory sheet pile driving: from source to soil
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Överföring av vibrationer i samband med vibrodrivning av spont - från källa till jord : från källa till jord
Abstract [en]

Vibratory driven sheet piles are a cost-effective retaining wall structure, and in coming decades the continued use of this method will be crucial for minimising costs within the construction sector. However, vibratory driven sheet piles are a source of ground vibrations, which may harm structures or induce disturbance. Most urban construction projects face strict limits on permissible vibration level. Being able to reliably predict the expected vibration level prior to construction is therefore highly important. Reliable prediction demands a profound knowledge of the vibration transfer process, from source to point of interest. This thesis focuses on clarifying the vibration transfer process and will serve as a platform for the future development of a reliable prediction model. The vibration transfer process is divided into two main parts: vibration source and vibrations in soil. The different parts in the vibration transfer process are studied and investigated with the help of a literature review, field tests and numerical modelling. Within the scope of this thesis, three field tests have been conducted and a new instrumentation system has been developed. The new instrumentation system enables recording of both sheet pile vibrations and ground vibrations at depth during the entire driving. The field tests aimed to study the vibration transfer from sheet pile to soil and the vibration transfer within a sheet pile wall, as well as the wave pattern in soil. To study sheet pile behaviour during driving a numerical model was developed, which is also meant to serve as a basis for further studies. The main scientific contribution of this thesis is the identification of the sheet pile behaviour during driving. For practical application, the main contribution is the development of an increased knowledge of the vibration transfer process from source to soil, together with the new instrumentation system and the development of the numerical model.

Abstract [sv]

Vibrodriven spont är en kostnadseffektiv stödkonstruktion och i framtiden kommer den fortsatta användningen av denna metod att vara nödvändig för att minimera kostnader för byggprojekt. Vibrodriven spont är dock en källa till markvibrationer, som kan skada byggnader eller orsaka störningar. De flesta byggprojekt måste förhålla sig till strikta krav gällande vibrationsnivåer. Möjligheten att på ett tillförlitligt sätt förutsäga vibrationsnivåerna innan bygget startar är därför av största vikt. Tillförlitlig prognos av vibrationsnivåer i samband med vibrodrivning av spont kräver god kännedom om vibrationsöverföringsprocessen, från källan till det potentiella skadeobjektet. Denna avhandling fokuserar på att förtydliga vibrationsöverföringsprocessen och fungera som en plattform för framtida utveckling av en tillförlitlig prognosmodell. Vibrationsöverföringsprocessen delas in i två huvuddelar; vibrationskällan och vibrationer i jord. De olika delarna av vibrationsöverföringsprocessen studeras och undersöks med hjälp av litteraturstudie, fältförsök och numerisk modellering. Inom ramarna för denna avhandling har tre fältförsök utförts och ett nytt instrumenteringssystem har utvecklats. Det nya instrumenteringssystemet möjliggör mätning av både spontvibrationer och vibrationer på djup i jorden, under hela neddrivningsfasen. Fältförsöken syftade till att studera vibrationsöverföringen mellan spont och jord, vibrationsöverföringen inom en spontvägg samt vågmönstret i jorden under drivning. För att studera spontens beteende under neddrivning utvecklades en numerisk modell, som också kan fungera som en bas för framtida studier. Avhandlingens huvudsakliga vetenskapliga bidrag är identifieringen av spontens beteende under neddrivning. För praktisk tillämpning är det huvudsakliga bidraget förklaringen av vibrationsöverföringsprocessen från källa till jord, det nya instrumenteringssystemet samt utvecklingen av den numeriska modellen.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. 64 p.
Series
TRITA-JOB PHD, ISSN 1650-9501 ; 1026
Keyword
ground vibrations, sheet piles, vibratory driving, vibration transfer process, instrumentation system, field tests, numerical modelling, vibration prediction, markvibrationer, spont, vibrodrivning, vibrationsöverföringsprocessen, instrumenteringssystem, fältförsök, numerisk modellering, vibrationsprognosticering
National Category
Geotechnical Engineering
Research subject
Civil and Architectural Engineering
Identifiers
urn:nbn:se:kth:diva-203946 (URN)978-91-7729-315-6 (ISBN)
Public defence
2017-05-05, Kollegiesalen, Brinellvägen 8, Stockholm, 13:00 (English)
Opponent
Supervisors
Funder
SBUF - Sveriges Byggindustriers Utvecklingsfond, 12896
Available from: 2017-03-20 Created: 2017-03-20 Last updated: 2017-04-07Bibliographically approved

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