Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underpass structure of existing operation station without reserved interface and construction method
The invention provides an under-crossing structure of an existing operation station without a reserved interface and a construction method, the under-crossing structure comprises underground excavation working wells positioned on two sides of an existing operation station body, and two under-crossing passages positioned below the existing operation station body are arranged between the two underground excavation working wells; construction is carried out under an existing operation station body without shield tunneling method and incremental launching method construction conditions through an underground excavation working well, so that two underpass passages for subway passing are excavated conveniently, soil on the outer side of an underground excavation structure is reinforced through an MJS construction method machine, a fender post body structure is formed, and the underground excavation working well is constructed under the existing operation station body. Under the condition that an existing operation station body is not provided with a reserved connector, the effects of seepage prevention, soil blocking, water stopping and load bearing are achieved for an underpass passage, horizontal freezing holes are constructed in the reinforced soil body to form a frozen soil wall to serve as a temporary supporting structure, underground water invasion is blocked, and then a dry construction environment is formed; under the condition that a conventional enclosure structure cannot be adopted for construction below the existing operation station, the water stopping effect is guaranteed.
本发明提出一种未预留接口既有运营车站下穿结构及施工方法，包括位于既有运营车站本体两侧的暗挖工作井，两个暗挖工作井之间设有位于既有运营车站本体下方的两个下穿通路，通过暗挖工作井在不具备盾构法、顶推法施工条件下的既有运营车站本体下方进行施工，以便于开挖用于地铁穿行的两个下穿通路，通过采用MJS工法机械对暗挖结构外侧土体进行加固，形成围护桩体结构，在既有运营车站本体没有预留接口的情况下对下穿通路起到防渗、挡土、止水以及承重的作用，在加固土体内水平冻结孔施工形成冻土壁作为临时支护结构，阻隔地下水侵入，进而形成干燥的施工环境，在既有运营车站下方施工无法采用常规围护结构的情况下，保证止水效果。
Underpass structure of existing operation station without reserved interface and construction method
The invention provides an under-crossing structure of an existing operation station without a reserved interface and a construction method, the under-crossing structure comprises underground excavation working wells positioned on two sides of an existing operation station body, and two under-crossing passages positioned below the existing operation station body are arranged between the two underground excavation working wells; construction is carried out under an existing operation station body without shield tunneling method and incremental launching method construction conditions through an underground excavation working well, so that two underpass passages for subway passing are excavated conveniently, soil on the outer side of an underground excavation structure is reinforced through an MJS construction method machine, a fender post body structure is formed, and the underground excavation working well is constructed under the existing operation station body. Under the condition that an existing operation station body is not provided with a reserved connector, the effects of seepage prevention, soil blocking, water stopping and load bearing are achieved for an underpass passage, horizontal freezing holes are constructed in the reinforced soil body to form a frozen soil wall to serve as a temporary supporting structure, underground water invasion is blocked, and then a dry construction environment is formed; under the condition that a conventional enclosure structure cannot be adopted for construction below the existing operation station, the water stopping effect is guaranteed.
本发明提出一种未预留接口既有运营车站下穿结构及施工方法，包括位于既有运营车站本体两侧的暗挖工作井，两个暗挖工作井之间设有位于既有运营车站本体下方的两个下穿通路，通过暗挖工作井在不具备盾构法、顶推法施工条件下的既有运营车站本体下方进行施工，以便于开挖用于地铁穿行的两个下穿通路，通过采用MJS工法机械对暗挖结构外侧土体进行加固，形成围护桩体结构，在既有运营车站本体没有预留接口的情况下对下穿通路起到防渗、挡土、止水以及承重的作用，在加固土体内水平冻结孔施工形成冻土壁作为临时支护结构，阻隔地下水侵入，进而形成干燥的施工环境，在既有运营车站下方施工无法采用常规围护结构的情况下，保证止水效果。
Underpass structure of existing operation station without reserved interface and construction method
一种未预留接口既有运营车站下穿结构及施工方法
CHEN ZHINING (Autor:in) / SHE CAIGAO (Autor:in) / LI QING (Autor:in) / WANG NING (Autor:in) / HU FANGCAI (Autor:in) / YANG NING (Autor:in) / LOU YIN (Autor:in) / ZHAO HONGGUANG (Autor:in) / CHEN CHANGJIANG (Autor:in) / YANG PING (Autor:in)
24.11.2023
Patent
Elektronische Ressource
Chinesisch
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
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