语文 - Tapa dura

Key technology for tunneling underneath the operation line at short distance in a shield tunnel overlaid on top of the water-rich boulder stratum (fine)(Chinese Edition)

Hardcover. Condición: New. HardCover.Pub Date:2021-03-01 Pages:226 Language:Chinese Publisher:Central South University Press This book is based on the tunnel crossing project of Kunming Metro Line 4 under the existing Metro Line 2 to study the rich water The key technology of shield tunnels on the pebble stratum for short-distance tunneling underneath the operating line.?First. the engineering hydrogeological characteristics of the Holocene alluvial lake-rich pebble formations of Kunming Quaternary System are analyzed. Nº de ref. del artículo: NV020570

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