Roof ripping construction method for tunnel inclined shaft to enter main tunnel

The invention relates to the technical field of tunnel construction, in particular to a roof ripping construction method for a tunnel inclined shaft to enter a main tunnel. The method comprises the following steps that S1, a transition section from the inclined shaft to the main tunnel is lifted, an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WANG XUEJUN, ZHAO XIANGPING, LIAN ZIMIAO, LI JIANJUN
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to the technical field of tunnel construction, in particular to a roof ripping construction method for a tunnel inclined shaft to enter a main tunnel. The method comprises the following steps that S1, a transition section from the inclined shaft to the main tunnel is lifted, and excavation and supporting are enhanced; S2, upper adit roof ripping excavation is carried out on an intersection section of the inclined shaft and the main tunnel and temporary support is carried out; S3, the transition section from the inclined shaft to the main tunnel is reinforced, and arch covering is carried out; S4, primary support is carried out an upper arc adit of the main tunnel; S5, middle steps are excavated in a left-right staggered mode, and primary support is constructed; S6, lower steps are excavated in a left-right staggered mode, and primary support is constructed; and S7, inverted arch concrete is constructed, so that the primary support is closed to form a ring. According to the construction m