Construction method of railway single-track tunnel with central deeply-buried ditch in high and cold area

Construction method of railway single-track tunnel with central deeply-buried ditch in high and cold area

The invention discloses a construction method of a railway single-track tunnel with a central deeply-buried ditch in a high and cold area. The construction method includes: performing staking out in survey to determine the specific position of the central deeply-buried ditch; performing drilling and...

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Hauptverfasser: JIA BIN, WU JINGUANG, CHEN BIN, ZHANG DONG, QIN FAZE, WEI KUIFEI, YIN AIGUO, GUO LIMING, LI YADONG, ZHANG FAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
SHAFTS
TUNNELS
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creator JIA BIN
WU JINGUANG
CHEN BIN
ZHANG DONG
QIN FAZE
WEI KUIFEI
YIN AIGUO
GUO LIMING
LI YADONG
ZHANG FAN
description The invention discloses a construction method of a railway single-track tunnel with a central deeply-buried ditch in a high and cold area. The construction method includes: performing staking out in survey to determine the specific position of the central deeply-buried ditch; performing drilling and blasting on a tunnel face, synchronously drilling vertical presplit holes, transverse auxiliary holes and peripheral holes in the to-be-excavated area of the excavation face of the central deeply-buried ditch, and then performing excavation; performing tunnel face residue discharge and tunnel primary support, and performing central deeply-buried ditch residue discharge and construction; repeating the steps above for 3-5 times, and performing inverted arch construction once when the excavation face of the central deeply-buried ditch advances 9-12m; performing circulating construction according to the steps above until the construction of the whole tunnel is completed. The construction methodhas the advantages that
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
SHAFTS
TUNNELS
title Construction method of railway single-track tunnel with central deeply-buried ditch in high and cold area
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