ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2010, Vol. 30 ›› Issue (S1): 333-340.
• wenzhang • Previous Articles Next Articles
LI Kuai-Shi1, CHEN Fu-Qing1, DAO Shu2, CHEN Pan-Xu3
Received:
Revised:
Online:
Published:
Abstract:
Value engineering is applied to evaluate the two construction methods, i.e., twintube pipe jacking method and singletube shield tunneling method, for a bulk power transmission tunnel to connect two power distribution substations. Power cable connection function and environmental impact due to construction, cooling system for power transmission, easy for cable installation, convenient for different stage cable installation, construction flexibility, building protection during tunneling, schedule and cost of the two methods are evaluated for the two construction methods respectively in this paper. Singletube shield tunnel method is selected as the proper tunneling method for this project. Larger size bolt is used to reduce the intervals between the bolt holes and to increase the precision of segment erection; therefore, sharp curve tunnel is successfully applied without entering into the existing adjacent buildings. For the encountered huge size cobbles and compact gravel beneath the ground water table, the shield machine cutter head is fully replaced.
Key words: power transmission tunnel, value engineering, pipe jacking, shield tunnel, curve tunnel, sharp curved shield tunnel, segment erection precision, cobble/gravel stratum, shaft
LI Kuai-Shi, CHEN Fu-Qing, DAO Shu, CHEN Pan-Xu. Application of Value Engineering in Power Transmission Project and Key Shield Tunneling Technologies[J]. Tunnel Construction, 2010, 30(S1): 333-340.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.suidaojs.com/EN/
http://www.suidaojs.com/EN/Y2010/V30/IS1/333
Issues Related to Application of Jet Fans in Partitioned Ventilation of Tunnel Inclined Shafts
Effect of Air Extraction From Inclined Shafts in Tunnels on Overturning Stability of HighSpeed Trains
Numerical Simulation Analysis of Influence of Curved Tunneling on Deformation of Adjacent Strata and Segments
Characteristics of Carbon Emissions from Excavation and Supporting During Construction of Inclined Shafts of Highway Tunnels