Field Investigation into Effectiveness of Compaction Grouting

Autor:	Tamotsu Matsui, Adel M. El-Kelesh, Ken-ichi Tokida
Rok vydání:	2012
Předmět:	Field (physics) Grout Compaction engineering.material Geotechnical Engineering and Engineering Geology Compression (physics) Cone penetration test Soil stabilization engineering Geotechnical engineering Standard penetration test Pile Geology General Environmental Science
Zdroj:	Journal of Geotechnical and Geoenvironmental Engineering. 138:451-460
ISSN:	1943-5606 1090-0241
DOI:	10.1061/(asce)gt.1943-5606.0000540
Popis:	The common design approach of compaction grouting for ground improvement works is oversimplified and does not account for the effects of soil properties and grouting variables. The obtained improvements therefore appear inconsistent with the predicted ones. This paper presents the results of a field test conducted at Tokyo International Airport to evaluate the effectiveness of compaction grouting under well-controlled conditions. The test consisted of 87 compaction grout piles injected in three cases of different pile diameters and spacings. The paper also discusses the effects of soil properties, replacement ratio, and injection sequence on the effectiveness that is evaluated in terms of the standard penetration test N-value and cone penetration test tip resistance, and the variation of effectiveness with depth. A new design procedure that accounts for the effects of initial soil properties is introduced. It has been found that the injection sequence has a significant effect on the grouting mecha...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3a012f5804d38d8c595cb0162c056060 https://doi.org/10.1061/(asce)gt.1943-5606.0000540 Zobrazit plný text záznamu Plný text ve formátu PDF