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This book addresses development laws for axial strain and excess
pore water pressure in silty clay around subway shield tunnels
before and after freezing-thawing when subjected to subway loading,
as well as the effect of freezing-thawing on the dynamic parameters
of silty clay, including the dynamic modulus and damping ratio,
introducing readers to the design and construction of bypasses in
subway tunnels with the artificial freezing method. On this basis,
it then studies the microstructures of silty clay before and after
freezing-thawing cyclic loading by means of scanning electron
microscope tests and mercury intrusion porosimetry tests. Lastly,
the book presents a numerical simulation of the dynamics of silty
clay around subway tunnels before and after thawing. Given its
scope, it offers a valuable reference guide for construction
researchers and designers alike, as well as senior undergraduate
and graduate students at colleges and universities.
This book addresses development laws for axial strain and excess
pore water pressure in silty clay around subway shield tunnels
before and after freezing-thawing when subjected to subway loading,
as well as the effect of freezing-thawing on the dynamic parameters
of silty clay, including the dynamic modulus and damping ratio,
introducing readers to the design and construction of bypasses in
subway tunnels with the artificial freezing method. On this basis,
it then studies the microstructures of silty clay before and after
freezing-thawing cyclic loading by means of scanning electron
microscope tests and mercury intrusion porosimetry tests. Lastly,
the book presents a numerical simulation of the dynamics of silty
clay around subway tunnels before and after thawing. Given its
scope, it offers a valuable reference guide for construction
researchers and designers alike, as well as senior undergraduate
and graduate students at colleges and universities.
This book provides a general review of the literature on
underground structures, combined with new specifications,
engineering case studies, and numerical simulations based on the
authors' research. It focuses on the basic concepts, theories, and
methods of the design of underground structures. After an
introduction, it covers various topics, such as elastic foundation
beam theory and numerical analysis methods for underground
structures, as well as the design of shallow underground
structures, diaphragm wall structures, shield tunnel structures,
caisson structures, immersed tube structures, and integral tunnel
structures. It also includes tables for calculating elastic
foundation beam. This book is intended for senior undergraduate and
graduate students majoring in urban underground space engineering,
building engineering, highway engineering, railway engineering,
bridge and tunnel engineering, water conservancy and hydropower
engineering.
This book brings forward the concept of the geology-environmental
capacity of ground buildings. It quantifies the
geology-environmental capacity of ground buildings by analyzing the
main factors of land subsidence and setting up the evaluation
system. The geological environmental capacity of ground buildings
is mainly controlled by the land subsidence and the output is the
floor area ratio. According to the different geology structures and
the different requirements of subsidence control in the soft soil
areas in Shanghai, the evaluation system of the floor area ratio is
built up by the adaptive neuro-fuzzy inference system (ANFIS) and
the floor area ratios of four typical regions (Lujiazui, Xujiahui,
Zhongyuan and Changqiao) are obtained by the ANFIS to offer
references for urban planning. By taking the typical soft soil
areas in Shanghai as case studies, this book will provide valuable
insights to professors and graduate students in the field of
Geotechnical Engineering, Civil Engineering, Engineering Geology
and Environmental Geology.
This book brings forward the concept of the geology-environmental
capacity of ground buildings. It quantifies the
geology-environmental capacity of ground buildings by analyzing the
main factors of land subsidence and setting up the evaluation
system. The geological environmental capacity of ground buildings
is mainly controlled by the land subsidence and the output is the
floor area ratio. According to the different geology structures and
the different requirements of subsidence control in the soft soil
areas in Shanghai, the evaluation system of the floor area ratio is
built up by the adaptive neuro-fuzzy inference system (ANFIS) and
the floor area ratios of four typical regions (Lujiazui, Xujiahui,
Zhongyuan and Changqiao) are obtained by the ANFIS to offer
references for urban planning. By taking the typical soft soil
areas in Shanghai as case studies, this book will provide valuable
insights to professors and graduate students in the field of
Geotechnical Engineering, Civil Engineering, Engineering Geology
and Environmental Geology.
This book provides a general review of the literature on
underground structures, combined with new specifications,
engineering case studies, and numerical simulations based on the
authors' research. It focuses on the basic concepts, theories, and
methods of the design of underground structures. After an
introduction, it covers various topics, such as elastic foundation
beam theory and numerical analysis methods for underground
structures, as well as the design of shallow underground
structures, diaphragm wall structures, shield tunnel structures,
caisson structures, immersed tube structures, and integral tunnel
structures. It also includes tables for calculating elastic
foundation beam. This book is intended for senior undergraduate and
graduate students majoring in urban underground space engineering,
building engineering, highway engineering, railway engineering,
bridge and tunnel engineering, water conservancy and hydropower
engineering.
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