Chalk has proved to be one of the more difficult rocks to core-log as it breaks up readily during the drilling process leading to core-loss and destructuring, particularly where flints, nodular chalks and/or fractures are present. This book is based on the standard lithostratigraphy and method of engineering description of Chalk developed over many years. This book will enable geologists to work from first principles to construct a lithostratigraphy and define weathering boundaries.
“Want to read something good?. . . If you like my stuff, you’ll like this.”—Stephen King • WINNER OF THE ITW THRILLER AWARD • WINNER OF THE STRAND MAGAZINE AWARD FOR BEST DEBUT NOVEL A riveting psychological suspense debut that weaves a mystery about a childhood game gone dangerously awry, and will keep readers guessing right up to the shocking ending In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man—the same one he and his friends saw when they found the body. Soon he learns that all his old friends received the same note. When one of them is killed, Eddie realizes that saving himself means figuring out what happened all those years ago. But digging into the past proves more dangerous than he could have known. Because in this town, everyone has secrets, no one is innocent, and some will do anything to bury the truth. Praise for The Chalk Man “Wonderfully creepy—like a cold blade on the back of your neck.”—Lee Child “An assured debut that alternates between 1986 and 2016 with unpredictable twists. The Chalk Man fits well with other stories about troubled childhoods such as Stephen King’s novella Stand by Me. . . . Tudor never misses a beat in showing each character as both a child and an adult while also exploring the foreboding environs of a small town.”—Associated Press “Utterly hypnotic. The Chalk Man is a dream novel, a book of nightmares: haunted and haunting, shot through with shadow and light—a story to quicken the pulse and freeze the blood. A dark star is born.”—A.J. Finn, #1 New York Times bestselling author of The Woman in the Window “If you can’t get enough of psychological thrillers with sharp twists and turns, you need to read The Chalk Man”—Hello Giggles “I haven’t had a sleepless night due to a book for a long time. The Chalk Man changed that.”—Fiona Barton, New York Times bestselling author of The Widow
A photographic exploration of mathematicians’ chalkboards “A mathematician, like a painter or poet, is a maker of patterns,” wrote the British mathematician G. H. Hardy. In Do Not Erase, photographer Jessica Wynne presents remarkable examples of this idea through images of mathematicians’ chalkboards. While other fields have replaced chalkboards with whiteboards and digital presentations, mathematicians remain loyal to chalk for puzzling out their ideas and communicating their research. Wynne offers more than one hundred stunning photographs of these chalkboards, gathered from a diverse group of mathematicians around the world. The photographs are accompanied by essays from each mathematician, reflecting on their work and processes. Together, pictures and words provide an illuminating meditation on the unique relationships among mathematics, art, and creativity. The mathematicians featured in this collection comprise exciting new voices alongside established figures, including Sun-Yung Alice Chang, Alain Connes, Misha Gromov, Andre Neves, Kasso Okoudjou, Peter Shor, Christina Sormani, Terence Tao, Claire Voisin, and many others. The companion essays give insights into how the chalkboard serves as a special medium for mathematical expression. The volume also includes an introduction by the author, an afterword by New Yorker writer Alec Wilkinson, and biographical information for each contributor. Do Not Erase is a testament to the myriad ways that mathematicians use their chalkboards to reveal the conceptual and visual beauty of their discipline—shapes, figures, formulas, and conjectures created through imagination, argument, and speculation.
This book provides guidance on engineering in chalk. It describes the chalk's geological setting, its origins, occurrence, its stratigraphy, weathering and geomorphological situations, the material and mechanical properties. The descriptions are supported by a comprehensive set of photographs. It explains recommended schemes for the engineering description and classification of chalk, building on the work presented in CIRIA PR11, 'Foundations in Chalk'. The publication looks at the mechanical and material properties of intact, in-situ and compacted chalk and considers their implications for the design and construction of earthworks, cuttings, retaining walls and anchorages. Major sections deal with the selection and design of shallow and piled foundations. Based on analysis of the results of pile testing, the book makes recommendations for the design and choice of bored, CFA, driven cast-in-place and pre-formed piles in chalk and for estimating shaft and base resistances. Contents:1 Introduction, 2 The engineering geology of chalk, 3 Description and classification of chalk, 4 Mechanical properties of the chalk, 5 Chalk in embankments and fills, 6 Cuttings, retaining structures and anchorages in chalk, 7 Shallow foundations, 8 Piled foundations, 9 Site investigations in chalk, 10 Concluding remarks, References.
