Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-dimensional precipitation method for quicksand stratum
The invention relates to a three-dimensional precipitation method for a quicksand stratum. The three-dimensional precipitation method for the quicksand stratum comprises the following steps of in the process of performing tunnel construction on a quicksand stratum landform, dewatering by adopting a vacuum negative pressure dewatering method aiming at a tunnel face and a tunnel top, and dewatering by adopting a gravity type dewatering well dewatering method aiming at the bottom of a tunnel. According to the three-dimensional precipitation method for the quicksand stratum, the phenomena of tunnel face sand gushing and bottom plate sand boiling can be effectively avoided, an underground water level line is well controlled to be lower than the lowest point of inverted arch construction, and the problem that the inverted arch construction of a water-rich quicksand stratum is difficult is solved. According to the three-dimensional precipitation method for the quicksand stratum, the phenomena of tunnel face sand gushing and bottom plate sand boiling can be effectively avoided, the underground water level line is well controlled to be lower than the lowest point of the inverted arch construction, and the problem that the inverted arch construction of the water-rich quicksand stratum is difficult is solved.
本发明涉及一种流沙地层立体式降水方法，包括步骤：在流沙地层地貌进行隧道施工过程中，针对隧道掌子面和隧顶，采用真空负压降水方法进行降水，针对隧道底部，采用重力式降水井降水方法进行降水。通过本发明，能够有效解决掌子面涌砂及底板砂沸现象，很好的控制地下水位线低于仰拱施工最低点，克服了富水流沙地层仰拱施工困难的问题。通过本发明，能够有效解决掌子面涌砂及底板砂沸现象，很好的控制地下水位线低于仰拱施工最低点，克服了富水流沙地层仰拱施工困难的问题。
Three-dimensional precipitation method for quicksand stratum
The invention relates to a three-dimensional precipitation method for a quicksand stratum. The three-dimensional precipitation method for the quicksand stratum comprises the following steps of in the process of performing tunnel construction on a quicksand stratum landform, dewatering by adopting a vacuum negative pressure dewatering method aiming at a tunnel face and a tunnel top, and dewatering by adopting a gravity type dewatering well dewatering method aiming at the bottom of a tunnel. According to the three-dimensional precipitation method for the quicksand stratum, the phenomena of tunnel face sand gushing and bottom plate sand boiling can be effectively avoided, an underground water level line is well controlled to be lower than the lowest point of inverted arch construction, and the problem that the inverted arch construction of a water-rich quicksand stratum is difficult is solved. According to the three-dimensional precipitation method for the quicksand stratum, the phenomena of tunnel face sand gushing and bottom plate sand boiling can be effectively avoided, the underground water level line is well controlled to be lower than the lowest point of the inverted arch construction, and the problem that the inverted arch construction of the water-rich quicksand stratum is difficult is solved.
本发明涉及一种流沙地层立体式降水方法，包括步骤：在流沙地层地貌进行隧道施工过程中，针对隧道掌子面和隧顶，采用真空负压降水方法进行降水，针对隧道底部，采用重力式降水井降水方法进行降水。通过本发明，能够有效解决掌子面涌砂及底板砂沸现象，很好的控制地下水位线低于仰拱施工最低点，克服了富水流沙地层仰拱施工困难的问题。通过本发明，能够有效解决掌子面涌砂及底板砂沸现象，很好的控制地下水位线低于仰拱施工最低点，克服了富水流沙地层仰拱施工困难的问题。
Three-dimensional precipitation method for quicksand stratum
一种流沙地层立体式降水方法
HE YONGYI (Autor:in) / WANG MINGNIAN (Autor:in) / SUN BOLE (Autor:in) / DU YINGJIE (Autor:in) / SUI WENZHONG (Autor:in) / LI KAI (Autor:in) / YU LI (Autor:in) / LIU DAGANG (Autor:in) / CHEN PING (Autor:in) / SHEN CHAOCHAO (Autor:in)
24.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
E02D
FOUNDATIONS
,
Gründungen
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
/
E21D
SHAFTS
,
Schächte
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