Multiobjective Optimization of Relief Well Operations to Improve Levee Safety

Ye-Hong Chen, Frank T.-C. Tsai and Navid H. Jafari

Liquefaction Potential and Effective Stress of Fiber-Reinforced Sand during Undrained Cyclic Loading

Xidong Zhang and Adrian R. Russell

Dynamic Ground Response during Vibratory Sheet Pile Driving

K. Rainer Massarsch, Carl Wersall and Bengt H. Fellenius

Pull-Out Response of a Laboratory-Scale Energy Pile Subjected to Cooling Cycles

Rehab Elzeiny and Muhannad T. Suleiman

Stress History-Dependent Secondary Compression of San Francisco Bay Region Old Bay Clays

Nathaniel Wagner, Micaela Largent, Jonathan P. Stewart, Christine Beyzaei, Debra Murphy, Jeremy Butkovich and John A. Egan

Common-Origin Approach to Assess Level-Ground Liquefaction Susceptibility and Triggering in CPT-Compatible Soils Using ΔQ

Steven R. Saye, Scott M. Olson and Kevin W. Franke

Advancement in Estimation of Undrained Shear Strength through Fall Cone Tests

Abhishek Ghosh Dastider, Santiram Chatterjee and Prasenjit Basu

Evolution of Dynamic Properties of Cross-Anisotropic Sand Subjected to Stress Anisotropy

Mostafa Zamanian, Meghdad Payan, Fardin Jafarzadeh, Navid Ranjbar and Kostas Senetakis

Effects of Soil Conditions on the Cone Resistance of Lightweight Penetrometers

Gabriel Villavicencio, Gonzalo Suazo, Ricardo Zuniga and Pamela Valenzuela

Geotechnical Characterization of Fine-Grained Spoil Material from Surface Coal Mines

Ioannis E. Zevgolis, Alexandros I. Theocharis, Alexandros V. Deliveris, Nikolaos C. Koukouzas, Christos Roumpos and Alec M. Marshall

General Model for the Uniaxial Tensile Strength Characteristic Curve of Unsaturated Soils

Kwestan Salimi, Amy B. Cerato, Farshid Vahedifard and Gerald A. Miller

Case Studies

Experimental and Numerical Analysis of a Field Trial Application of Microbially Induced Calcite Precipitation for Ground Stabilization

Chen Zeng, Yvo Veenis, Caitlyn A. Hall, Elizabeth Stallings Young, Wouter R. L. van der Star, Jun-jie Zheng and Leon A. van Paassen

Technical Notes

Effect of Gradation and Particle Shape on the Limiting Compression Curves of Sand-Sized Siliceous Materials

Abideen Toba Owolabi, Luis Alberto Torres-Cruz and Nico Vermeulen

Discussions and Closures

Discussion of “Field Observations and Analysis of the Subgrade Response Beneath GRCS Embankments at the Council Bluffs Interchange System’’ by Aaron P. Gallant, Ehab Shatnawi, and Danilo Botero-Lopez

Vishnu Diyaljee

Closure to “Field Observations and Analysis of the Subgrade Response Beneath GRCS Embankments at the Council Bluffs Interchange System’’ by Aaron P. Gallant, Ehab Shatnawi, and Danilo Botero-Lopez

Aaron P. Gallant, Ehab Shatnawi and Danilo Botero-Lopez

Discussion of “Suppressing Ettringite-Induced Swelling of Gypseous Soil by Using Magnesia-Activated Ground Granulated Blast-Furnace Slag” by Wentao Li, Yaolin Yi, and Anand J. Puppala

Hugo Carlos Scheuermann Filho, Gustavo Dias Miguel, Lucas Festugato and Marina Bellaver Corte

Closure to “Suppressing Ettringite-Induced Swelling of Gypseous Soil by Using Magnesia-Activated Ground Granulated Blast-Furnace Slag” by Wentao Li, Yaolin Yi, and Anand J. Puppala

Wentao Li, Yaolin Yi and Anand J. Puppala

Corrections

Erratum for “Experimental Evaluation of the Interaction among Neighboring Reinforcements in Geosynthetic-Reinforced Soils” by Amr M. Morsy, Jorge G. Zornberg, Dov Leshchinsky, Barry R. Christopher, Jie Han, and Burak F. Tanyu

Amr M. Morsy, Jorge G. Zornberg, Dov Leshchinsky, Barry R. Christopher, Jie Han and Burak F. Tanyu

Erratum for “Delaney Park Geotechnical Array Dynamic Properties Inferred from the Magnitude 7.1 2018 Anchorage, Alaska, Earthquake Sequence” by Erol Kalkan, Weiping Wen, and YeongAe Heo

Erol Kalkan, Weiping Wen and YeongAe Heo

Journal Papers

Performance of the Tensiometer Method for the Determination of Soil-Water Retention Curves in Various Soils

Paul Francois le Roux, Schalk Willem Jacobsz

Discussion of “Fully Softened Shear Strength Measurement and Correlations,” by T. D. Stark and R. Fernandez, published in Geotechnical Testing Journal 43, no. 5 (2020)

Bernardo A. Castellanos, Thomas L. Brandon

Tensile Strength of Compacted Clays during Desiccation under Elevated Temperatures

Kwestan Salimi, Amy B. Cerato, Farshid Vahedifard, Gerald A. Miller

New Physical Model to Study Tunnels in Squeezing Clay-Rich Rocks

Ketan Arora, Marte Gutierrez, Ahmadreza Hedayat

Full-Scale Experimental Study on the Single and Group of Soil-Cement Columns under Vertical Load Applying for Buildings

Huu-Dao Do, Van-Ngoc Pham, Cao-Tho Phan, Anand Puppala, Erwin Oh

Fiber Bragg Grating-Based Flume Test to Study the Initiation of Landslide-Debris Flows Induced by Concentrated Runoff

Hao-Jie Li, Hong-Hu Zhu, Yuan-Hai Li, Wei Hu, Bin Shi

Developing a Sample Preparation Approach to Study the Mechanical Behavior of Unsaturated Fine/Coarse Soil Mixture

Yu Su, Yu-Jun Cui, Jean-Claude Dupla, Jean Canou, Shuai Qi

A Ring-Shear Radial-Seepage Apparatus for Evaluating the Permeability of Shear Bands in Compacted Clay

Gang Wang, Wei Wang, Xing Wei

Design and Development of an In-Flight Actuator for Modeling Dynamic Compaction in a Geotechnical Centrifuge

Saptarshi Kundu, B. V. S. Viswanadham

Estimation of Undrained Shear Strength of Overconsolidated Clay Using a Maximum Excess Pore Pressure Method Based on Piezocone Penetration Test (CPTU)

Lulu Liu, Guojun Cai, Xiaoyan Liu, Xuepeng Li, Songyu Liu, Anand J. Puppala

Papers

Influence of soil microstructure on air permeability in compacted clay

Viet Nguyen, Jubert Andrés Pineda, Enrique Romero, Daichao Sheng

Seismic harmonic response of inhomogeneous soil: scaling analysis

Joaquin Garcia-Suarez, Elnaz Seylabi, Domniki Asimaki

Model-independent strength-reduction factor for effect of spatial variability on tunnel with improved soil surrounds

Yutao Pan, Yong Liu, Akanksha Tyagi, Fook-Hou Lee, Dian-Qing Li

Equivalent state theory for mixtures of sand with non-plastic fines: a DEM investigation

Nick Barnett, Md. Mizanur Rahman, Md. Rajibul Karim, H. B. Khoi Nguyen, J. Antonio H. Carraro

Measurement of plant xylem water pressure using the high-capacity tensiometer and implications for the modelling of soil-atmosphere interaction

Roberta Dainese, Alessandro Tarantino

A centrifuge investigation of the relationship between the vertical response of footings on sand and CPT end resistance

Qingbing Liu, Barry M. Lehane

Papers

Articles

Diffusion through sodium and polymer enhanced bentonites exposed to dilute and aggressive solutions

Shan Tong, Kristin M. Sample-Lord, and Gretchen L. Bohnhoff

Effect of density on skin friction response of piles embedded in sand by simple shear interface tests

Kazem Fakharian and Nasrin Vafaei

Centrifuge modelling of a tetrapod jacket foundation under lateral cyclic and monotonic loading in soft soil

Shu Zhu, Ren-peng Chen, and Xin Kang

Pile driveability in low- to medium-density chalk

R.M. Buckley, S. Kontoe, R.J. Jardine, P. Barbosa, and F.C. Schroeder

Effects of plant morphology on root-soil hydraulic interactions of Schefflera heptaphylla

C.W.W. Ng, Z.J. Wang, and J.J. Ni

Nonlinear constitutive model of soil-bentonite based on triaxial tests along different stress paths

Pengcheng Ma, Han Ke, Xing Tong, and Yumin Chen

Reliability-based design and analysis for internal limit states of steel grid-reinforced mechanically stabilized earth walls

Richard J. Bathurst, Nezam Bozorgzadeh, Yoshihisa Miyata, and Tony M. Allen

Soil-water characteristic curves of bentonites in isochoric conditions during wetting: measurement and prediction

Tadikonda Venkata Bharat and Yagom Gapak

Performance of highway embankments in the Arctic constructed under winter conditions

Earl Marvin B. De Guzman, Marolo C. Alfaro, Guy Doré, Lukas U. Arenson, and Aron Piamsalee

Notes

A cautionary note for rock avalanche field investigation: recent sequential and overlapping landslides in British Columbia

Marten Geertsema and Alexandre Bevington

Effects of electrokinetic phenomena on the load-bearing capacity of different steel and concrete piles: a small-scale experimental study

Fatemeh Sadeghian, Abdolhosein Haddad, Soheil Jahandari, Haleh Rasekh, and Togay Ozbakkaloglu

Discussions

Discussion of “Field study of pile - prefabricated vertical drain (PVD) interaction in soft clay”

Gholamreza Mesri

Reply to the discussion by Mesri on “Field study of pile - prefabricated vertical drain (PVD) interaction in soft clay”

Dongli Zhu, Buddhima Indraratna, Harry Poulos, and Cholachat Rujikiatkamjorn

Articles

Massive, continuous, and non-invasive surface measurement of degree of saturation by shortwave infrared images

Ferran Parera, Núria M. Pinyol, and Eduardo E. Alonso

A numerical characterization workflow for assessing the strength and failure modes of heterogeneous oil sands

Bo Zhang, Rick Chalaturnyk, and Jeff Boisvert

Use of a bounding surface model in predicting element tests and capacity in boundary value problems

A. Roy, S.H. Chow, C.D. O¡?Loughlin, M.F. Randolph, and S. Whyte

Crack-resistant cement-bentonite cut-off wall materials incorporating superabsorbent polymers

Benyi Cao, Jingtao Chen, and Abir Al-Tabbaa

Development of a hybrid soil pressure sensor and its application to soil compaction

M. Talesnick, M. Ringel, and K. Rollins

Analyzing variation of the water table level with three-dimensional numerical simulations to assess reclamation techniques for an acidic tailings impoundment

Stefan Broda, Marie-Pier Ethier, Daniela Blessent, Michel Aubertin, Abdelkabir Maqsoud, and Bruno Bussière

Bearing capacity mechanisms for pipes buried in sand

Jinbiao Wu, George Kouretzis, and Laxmi Suwal

Recovery of small-strain stiffness following blast-induced liquefaction based on shear wave velocity measurements

Siavash Mahvelati, Joseph T. Coe, Armin W. Stuedlein, Philip Asabere, Tygh N. Gianella, and Alireza Kordjazi

Increasing density and cement content in stabilization of expansive soils: Conflicting or complementary procedures for reducing swelling?

Nilo Cesar Consoli, Mariana Tonini de Araújo, Suéllen Tonatto Ferrazzo, Vinicius de Lima Rodrigues, and Cecilia Gravina da Rocha

Liquefied strength ratio with stress densification and low stresses

Timothy D. Stark and Charles J. MacRobert

Static liquefaction behaviour of gold mine tailings

Guillermo A. Riveros and Abouzar Sadrekarimi

Prediction of coupled hydromechanical behavior of unsaturated soils based on seasonal variations in hydrologic conditions

Majid Mahmoodabadi and L. Sebastian Bryson

Discussions

Discussion of “Comparison of Canadian Highway Bridge Design Code and AASHTO LRFD Bridge Design Specifications regarding pile design subject to negative skin friction”

Bengt H. Fellenius

Reply to the discussion by Fellenius on “Comparison of Canadian Highway Bridge Design Code and AASHTO LRFD Bridge Design Specifications regarding pile design subject to negative skin friction”

James R. Bartz and James A. Blatz

Field monitoring of the ground vibrations adjacent to an onshore wind turbine foundation

Pengpeng He, Jesús Gonzalez-Hurtado, Tim Newson, Hanping Hong, Melanie Postman, and Sheri Molnar

Special section on DECOVALEX 2019

Analysis of coupled thermal-hydro-mechanical processes during small scale in situ heater experiment in Callovo-Oxfordian clay rock introducing a failure-index permeability model

Wenqing Wang, Hua Shao, Thomas Nagel, Olaf Kolditz

Research Articles

A combined “ground support-rock modification-destressing” strategy for 1000-m deep roadways in extreme squeezing ground condition

Hongpu Kang, Pengfei Jiang, Yongzheng Wu, Fuqiang Gao

Anisotropic failure behaviour and breakdown pressure interpretation of hydraulic fracturing experiments on shale

Jun Wang, Heping Xie, Cunbao Li

Cross-scale characterization of sandstones via statistical nanoindentation: Evaluation of data analytics and upscaling models

Yucheng Li, Shengmin Luo, Meng Lu, Yongkang Wu, ... Guoping Zhang

Stability analyses of side-exposed backfill considering mine depth and extraction of adjacent stope

Ruofan Wang, Feitao Zeng, Li Li

Evolutions of the unfrozen water content of saturated sandstones during freezing process and the freeze-induced damage characteristics

Lei Weng, Zhijun Wu, Quansheng Liu, Zhaofei Chu, Silang Zhang

Mechanical performance evolution and size determination of strip coal pillars with an account of thermo-mechanical coupling in underground coal gasification

Wen-gang Huang, Zuo-tang Wang

Fracture stiffness evaluation with waterless cryogenic treatment and its implication in fluid flowability of treated coals

Yun Yang, Shimin Liu, Xin Chang

Simulation of the rock meso-fracturing process adopting local multiscale high-resolution modeling

Gen Li, Yi Zhao, Lihua Hu, Shengtao Qi, Chunan Tang

In-situ digital profiling of soil to rock strength from drilling process monitoring of 200 m deep drillhole in loess ground

X.F. Wang, M.S. Zhang, Z.Q. Yue

A micromechanical hydro-mechanical-damage coupled model for layered rocks considering multi-scale structures

Wu Liu, Liange Zheng, Zhenhua Zhang, Guang Liu, ... Chao Yang

Effects of geo-stress on the dynamic response of multi-physical field parameters during coal and gas outbursts under true triaxial stress

Bin Zhou, Jiang Xu, Shoujian Peng, Fazhi Yan, ... Liang Cheng

Cyclic injection to reduce hydraulic fracture surface roughness in glutenite reservoirs

Yuanxun Nie, Guangqing Zhang, Jing Wen, Shiyuan Li, Dawei Zhou

Damage monitoring in rock specimens with pre-existing flaws by non-linear ultrasonic waves and digital image correlation

Deepanshu Shirole, Ahmadreza Hedayat, Gabriel Walton

Automated extraction and evaluation of fracture trace maps from rock tunnel face images via deep learning

Jiayao Chen, Mingliang Zhou, Hongwei Huang, Dongming Zhang, Zhicheng Peng

A novel approach for fracture skeleton extraction from rock surface images

Yudi Tang, Lei He, Wei Lu, Xin Huang, ... Huaiguang Xiao

Experimental results of blast-induced cracking fractal characteristics and propagation behavior in deep rock mass

Chenxi Ding, Renshu Yang, Liyun Yang

Experimental investigation of stone drilling using water jet generated by electromagnetic actuator

Gittiphong Sripanagul, Anirut Matthujak, Thanarath Sriveerakul, Sutthisak Phongthanapanich

Intrinsic material constants of poroelasticity

Alexander H.D. Cheng

A rigorous multiscale random field approach to generate large scale rough rock surfaces

M. Jeffery, J. Huang, S. Fityus, A. Giacomini, O. Buzzi

TOUGH-RFPA: Coupled thermal-hydraulic-mechanical Rock Failure Process Analysis with application to deep geothermal wells

Tianjiao Li, Chun'an Tang, Jonny Rutqvist, Mengsu Hu

Rock salt behavior: From laboratory experiments to pertinent long-term predictions

M. Azabou, A. Rouabhi, L. Blanco-Martin, F. Hadj-Hassen, ... G. Hévin

Rockburst prediction and analysis of activity characteristics within surrounding rock based on microseismic monitoring and numerical simulation

Ruixiong Xue, Zhengzhao Liang, Nuwen Xu

Modeling coupled gas flow and geomechanics process in stimulated coal seam by hydraulic flushing

Ting Liu, Baiquan Lin, Xuehai Fu, Yang Zhao, ... Wei Yang

Impact of rock fracture geometry on geotechnical barrier integrity - A numerical study

Florian M. Huber, Debora Leone, Michael Trumm, Luis R. Moreno, ... Thorsten Schafer

An analytical solution for the stress distribution around the cased borehole in the orthotropic formation

Hongwei Wang

Influence of excavation damaged zone on the dynamic response of circular cavity subjected to transient stress wave

Huatao Zhao, Ming Tao, Xibing Li, Hitoshi Mikada, Shibo Xu

Integrated rockburst early warning model based on fuzzy comprehensive evaluation method

Shengquan He, Dazhao Song, Hani Mitri, Xueqiu He, ... Tuo Chen

Predicting the fragmentation survival probability of brittle spheres upon impact from statistical distribution of material properties

Davide Ettore Guccione, Olivier Buzzi, Klaus Thoeni, Stephen Fityus, Anna Giacomini

Seepage characteristics of chemical grout flow in porous sandstone with a fracture under different temperature conditions: An NMR based experimental investigation

Yuan Zhou, Zhijun Wu, Lei Weng, Quansheng Liu

Permeability prediction for porous sandstone using digital twin modeling technology and Lattice Boltzmann method

Huaiguang Xiao, Lei He, Jianchun Li, Chunjiang Zou, Chengmeng Shao

Investigating the use of polymer-modified cementitious thin spray-on liners as stope face support

M. du Plessis, D.F. Malan

Investigating stress shadowing effects and fracture propagation patterns: Implications for enhanced geothermal reservoirs

Ayaka Abe, Roland N. Horne

Experimental study on borehole size effect and prediction of breakout initiation stress

Huasheng Lin, Joung Oh, Ismet Canbulat, Bruce Hebblewhite, ... Stuart Walsh

The effect of viscoelasticity and microplasticity on the P- wave attenuation in dry and water-saturated sandstone: An experimental study

Eduard Mashinskii, Nazanin Nourifard

Effect of water content on the failure pattern and acoustic emission characteristics of red sandstone

Kui Zhao, Daoxue Yang, Peng Zeng, Zhen Huang, ... Tianye Teng

Experimental investigation on coal-breakage performances by abrasive nitrogen-gas jet with a conical nozzle

Chunyang Hong, Ruiyue Yang, Zhongwei Huang, Wei Liu, ... Richao Cong

An experimental and analytical study of rate-dependent shear behaviour of rough joints

Hua Li, Jianhui Deng, Jianhua Yin, Shengwen Qi, ... Jianbo Zhu

Alteration of ultrasonic signatures by stress-induced changes in hydro-mechanical properties of fractured rocks

Arash Kamali-Asl, Bijay KC, Ehsan Ghazanfari, Ismael Himar Falcon-Suarez

Study on the mechanism of a new fully mechanical mining method for extremely thick coal seam

Huayong Lv, Zhanbo Cheng, Fei Liu

Effect of unloading in two directions on the formation of a deep-seated flexural toppling failure

Guoxiang Tu, Hui Deng, Qi Shang, Yin Zhang, Xinping Luo

Technical Notes

Three-dimensional fabric orientation visualisation technique for distributed fractures using X-ray computed tomography

Sheng Jiang, Luming Shen, François Guillard, Itai Einav

Research Articles

Cracking mechanism and strength criteria evaluation of granite affected by intermediate principal stresses subjected to unloading stress state

Fan Feng, Shaojie Chen, Yajun Wang, Wanpeng Huang, Zhenyu Han

Permeability evolution of rock-concrete interfaces in underground lined storage systems

W.A.M. Wanniarachchi, Wei Wu

Experimental study of rock fragmentation under different stemming conditions in model blasting

Zong-Xian Zhang, Yang Qiao, Li Yuan Chi, De-Feng Hou

A three-dimensional coupled thermo-hydro-mechanical numerical model with partially bridging multi-stage contact fractures in horizontal-well enhanced geothermal system

Pengliang Yu, David Dempsey, Rosalind Archer

Influence of asperity degradation and gouge formation on flow during rock fracture shearing

Yuedu Chen, Weiguo Liang, A.P.S. Selvadurai, Zhihong Zhao

Intelligent modeling of blast-induced rock movement prediction using dimensional analysis and optimized artificial neural network technique

Zhi Yu, Xiuzhi Shi, Xiaohu Miao, Jian Zhou, ... Yingui Qiu

Characterization of mechanical discontinuities based on data-driven classification of compressional-wave travel times

Hao Li, Siddharth Misra, Rui Liu

A comprehensive underground excavation design (CUED) methodology for geotechnical engineering design of deep underground mining and tunneling

Behrooz Rahimi, Mostafa Sharifzadeh, Xia-Ting Feng

The velocity of roof deflection as an indicator of underground workings stability - Case study from polish deep copper mines

Lech Stolecki, Wies(C)(C)aw Grzebyk

Damage progression and acoustic emission in brittle failure of granite and sandstone

Xiao-Ping Zhou, Jian-Zhi Zhang

A geomechanical method for predicting the height of a water-flowing fractured zone in a layered overburden of longwall coal mining

Changchun He, Weiyong Lu, Wenhua Zha, Fei Wang

Size effect and other effects on mode I fracture toughness using two testing methods

Andrea Munoz-Ibanez, Jordi Delgado-Martin, Ricardo Juncosa-Rivera

A new large strain approach for predicting tunnel deformation in strain-softening rock mass based on the generalized Zhang-Zhu strength criterion

Chen Xu, Caichu Xia

The sliding instability of rock roof block induced by vertical dynamic disturbance: An experimental study

Feng Dai, Wancheng Zhu, Leilei Niu, Chen Hou, ... Kai Guan

Roof fall hazard assessment with the use of artificial neural network

Piotr Ma(C)(C)kowski, Dariusz Juszynski

A new approach to improve the assessment of rock mass discontinuity spacing using image analysis technique

Hassan Moomivand, Saeid Seadati, Hadi Allahverdizadeh

Location error based seismic cluster analysis and its application to burst damage assessment in underground coal mines

Changbin Wang, Guangyao Si, Chengguo Zhang, Anye Cao, Ismet Canbulat

A 3D thermo-hydro-mechanical coupling model for enhanced geothermal systems

Xin Cui, Louis Ngai Yuen Wong

Effect of the mineralogical composition on the elastoplastic hydromechanical response of Opalinus Clay shale

Eleonora Crisci, Alessio Ferrari, Silvio B. Giger, Lyesse Laloui

Mechanical anisotropy of coal under coupled biaxial static and dynamic loads

J. Li, J. Zhao, S.Y. Gong, H.C. Wang, ... Q.B. Zhang

Technical Notes

In-situ direct shear test and numerical simulation of slate structural planes with thick muddy interlayer along bedding slope

Xin Tan, Ya-kun Ren, Teng-long Li, Su-hua Zhou, ... Shuai-kang Zhou