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A platform for research: civil engineering, architecture and urbanism
Pile group construction method for detaching invading main structure of shield interval
The invention discloses a pile group construction method for detaching an invading main structure of a shield interval. In a mining method underground excavated tunnel section of a metro station interval, a temporary construction shaft and a transverse passage are arranged in the position near an exit of a slow-down street passing passage, a scheme of large-mileage downhill tunneling conducted from the transverse passage is adopted, in other words, the temporary construction shaft is used as a hoist-out shaft, and the transverse passage is used as a construction passage and a tunnel entry door; and a dewatering well is formed in an underground penetrating tunnel along the right side of an underground excavated tunnel, and the influence of underground water on the right side on the underground excavated tunnel is reduced. In an underground penetrating pedestrian passageway, a dewatering well is formed in a manual hole digging mode, and the influence of the underground water on the leftside on the underground excavated tunnel is reduced; and an open drain or a blind tube and a water collecting well are formed in an excavated tunnel, so that the underground water flows into the watercollecting well along the open drain or the blind tube and is then pumped out of the tunnel through a water pump, and water-free construction is guaranteed. Advanced anchor bars are used so that theeffects of surrounding rock consolidation and stratum stabilization can be achieved.
本发明公开一种盾构区间拆除侵入主体结构的群桩施工方法，在地铁车站区间矿山法暗挖隧道段，靠近慢行过街通道出口处设置一座临时施工竖井及横通道，采用由横通道向大里程顺坡掘进方案，即利用临时施工竖井作为吊出竖井，横通道作为施工通道及进洞洞门；在下穿隧道内沿暗挖隧道右侧布设降水井，降低右侧地下水对暗挖隧道的影响。在下穿人行通道内，利用人工挖孔设置降水井，降低左侧地下水对暗挖隧道的影响；在开挖隧道内设置排水明沟或盲管和集水井，使地下水沿明沟或盲管流入集水井，然后用水泵将水抽出隧道之外，确保无水施工。利用超前锚杆，能够起到加固围岩稳定地层的作用。
Pile group construction method for detaching invading main structure of shield interval
The invention discloses a pile group construction method for detaching an invading main structure of a shield interval. In a mining method underground excavated tunnel section of a metro station interval, a temporary construction shaft and a transverse passage are arranged in the position near an exit of a slow-down street passing passage, a scheme of large-mileage downhill tunneling conducted from the transverse passage is adopted, in other words, the temporary construction shaft is used as a hoist-out shaft, and the transverse passage is used as a construction passage and a tunnel entry door; and a dewatering well is formed in an underground penetrating tunnel along the right side of an underground excavated tunnel, and the influence of underground water on the right side on the underground excavated tunnel is reduced. In an underground penetrating pedestrian passageway, a dewatering well is formed in a manual hole digging mode, and the influence of the underground water on the leftside on the underground excavated tunnel is reduced; and an open drain or a blind tube and a water collecting well are formed in an excavated tunnel, so that the underground water flows into the watercollecting well along the open drain or the blind tube and is then pumped out of the tunnel through a water pump, and water-free construction is guaranteed. Advanced anchor bars are used so that theeffects of surrounding rock consolidation and stratum stabilization can be achieved.
本发明公开一种盾构区间拆除侵入主体结构的群桩施工方法，在地铁车站区间矿山法暗挖隧道段，靠近慢行过街通道出口处设置一座临时施工竖井及横通道，采用由横通道向大里程顺坡掘进方案，即利用临时施工竖井作为吊出竖井，横通道作为施工通道及进洞洞门；在下穿隧道内沿暗挖隧道右侧布设降水井，降低右侧地下水对暗挖隧道的影响。在下穿人行通道内，利用人工挖孔设置降水井，降低左侧地下水对暗挖隧道的影响；在开挖隧道内设置排水明沟或盲管和集水井，使地下水沿明沟或盲管流入集水井，然后用水泵将水抽出隧道之外，确保无水施工。利用超前锚杆，能够起到加固围岩稳定地层的作用。
Pile group construction method for detaching invading main structure of shield interval
一种盾构区间拆除侵入主体结构的群桩施工方法
LUO NINGNING (author) / LUO LIN (author) / LONG XIUTANG (author)
2020-05-29
Patent
Electronic Resource
Chinese
IPC:
E21D
SHAFTS
,
Schächte
/
E02D
FOUNDATIONS
,
Gründungen
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
METHOD FOR ATTACHING/DETACHING WORK DEVICE OF PILE DRIVER
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