Mass Stabilization as a Ground Improvement Method for Soft Peaty

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Mass Stabilization as a Ground Improvement Method for Soft Peaty. / Forsman, Juha; Korkiala-Tanttu, Leena; Piispanen, Pyry.

Peat. ed. / Bülent Topcuoğlu. London, 2018.

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

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Forsman, Juha ; Korkiala-Tanttu, Leena ; Piispanen, Pyry. / Mass Stabilization as a Ground Improvement Method for Soft Peaty. Peat. editor / Bülent Topcuoğlu. London, 2018.

Bibtex - Download

@inbook{69f289fd53dd4c118ddff3885fdd8792,
title = "Mass Stabilization as a Ground Improvement Method for Soft Peaty",
abstract = "Construction of road embankments or other infra structures on soft peat is a challenge. The main problems are high compressibility and rather low undrained shear strength of peat. Mass stabilization provides a solution to improve the properties of a peaty subgrade. Mass stabilization is a ground improvement method, where hardened soil mass is created by adding binder into soil and by controlled in-situ mixing. Mass stabilization poses an alternative solution for conventional mass replacement or other techniques, which leave peat in place. The chapter deals with mass stabilization of soft peat soil. Specific attention is paid to design, research and construction considerations, and experience obtained during last three decades. Peat properties before and after stabilization, design methods including pre-testing, stabilization technique and machinery, quality control methods and practices, binder technology, long-term performance of mass stabilized peat, environmental effects, feasibility, applications and limitations are all presented and discussed in this chapter. The long-term observations (during 25 years) have shown that the strength of stabilized peat has continued to increase in average 1.6 times from the strength of 30 days. Therefore mass stabilization have proven to be a flexible ground improvement method for peat layers with maximum thickness of eight meters.",
keywords = "peat, soil properties, mass stabilization, deep mixing, Ground improvement, design, execution, long-term performance",
author = "Juha Forsman and Leena Korkiala-Tanttu and Pyry Piispanen",
year = "2018",
month = "9",
day = "19",
doi = "10.5772/intechopen.74144",
language = "English",
isbn = "978-1-78923-746-7",
editor = "B{\"u}lent Topcuoğlu",
booktitle = "Peat",

}

RIS - Download

TY - CHAP

T1 - Mass Stabilization as a Ground Improvement Method for Soft Peaty

AU - Forsman, Juha

AU - Korkiala-Tanttu, Leena

AU - Piispanen, Pyry

PY - 2018/9/19

Y1 - 2018/9/19

N2 - Construction of road embankments or other infra structures on soft peat is a challenge. The main problems are high compressibility and rather low undrained shear strength of peat. Mass stabilization provides a solution to improve the properties of a peaty subgrade. Mass stabilization is a ground improvement method, where hardened soil mass is created by adding binder into soil and by controlled in-situ mixing. Mass stabilization poses an alternative solution for conventional mass replacement or other techniques, which leave peat in place. The chapter deals with mass stabilization of soft peat soil. Specific attention is paid to design, research and construction considerations, and experience obtained during last three decades. Peat properties before and after stabilization, design methods including pre-testing, stabilization technique and machinery, quality control methods and practices, binder technology, long-term performance of mass stabilized peat, environmental effects, feasibility, applications and limitations are all presented and discussed in this chapter. The long-term observations (during 25 years) have shown that the strength of stabilized peat has continued to increase in average 1.6 times from the strength of 30 days. Therefore mass stabilization have proven to be a flexible ground improvement method for peat layers with maximum thickness of eight meters.

AB - Construction of road embankments or other infra structures on soft peat is a challenge. The main problems are high compressibility and rather low undrained shear strength of peat. Mass stabilization provides a solution to improve the properties of a peaty subgrade. Mass stabilization is a ground improvement method, where hardened soil mass is created by adding binder into soil and by controlled in-situ mixing. Mass stabilization poses an alternative solution for conventional mass replacement or other techniques, which leave peat in place. The chapter deals with mass stabilization of soft peat soil. Specific attention is paid to design, research and construction considerations, and experience obtained during last three decades. Peat properties before and after stabilization, design methods including pre-testing, stabilization technique and machinery, quality control methods and practices, binder technology, long-term performance of mass stabilized peat, environmental effects, feasibility, applications and limitations are all presented and discussed in this chapter. The long-term observations (during 25 years) have shown that the strength of stabilized peat has continued to increase in average 1.6 times from the strength of 30 days. Therefore mass stabilization have proven to be a flexible ground improvement method for peat layers with maximum thickness of eight meters.

KW - peat

KW - soil properties

KW - mass stabilization

KW - deep mixing

KW - Ground improvement

KW - design

KW - execution

KW - long-term performance

U2 - 10.5772/intechopen.74144

DO - 10.5772/intechopen.74144

M3 - Chapter

SN - 978-1-78923-746-7

BT - Peat

A2 - Topcuoğlu, Bülent

CY - London

ER -

ID: 28010780