Application Theory Research of Gob-Side Entry Re(Chinese Edition)
YangHongyun . LiuYanbao . LinZhi
ISBN 10: 7502488502 ISBN 13: 9787502488505
Editorial: Metallurgical Industry Press, 2021
Nuevos
paperback
Librería:
liu xing, Nanjing, JS, China
Calificación del vendedor: 5 de 5 estrellas
Vendedor de AbeBooks desde 7 de abril de 2009
Este artículo en concreto ya no está disponible.
Descripción
Descripción:
Language:Chinese.Paperback. Pub Date: 2021-04-01 Publisher: Metallurgical Industry Press This book is a summary of the author's many years of scientific research. The book establishes an adaptive grading system for gob-side entry retention. Six geological factors. such as lithology. direct roof influence coefficient and roof integrity. were used to evaluate the adaptability of gob-side entry retention. and the influence weights of the 6 geological factors were obtained through AHP. The adapta. N° de ref. del artículo AMZ093896_NX027813_093896
Detalles bibliográficos
Título: Application Theory Research of Gob-Side ...
Editorial: Metallurgical Industry Press
Año de publicación: 2021
Encuadernación: paperback
Condición: New