Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
D-shaped temporary beam erecting method for underneath pass railway frame bridge type tunnel
The invention discloses a D-shaped temporary beam overhead method for an underneath passing a railway frame bridge tunnel, which comprises the following steps of: constructing an open cut foundation on an existing railroad bed by using skylight time; erecting a temporary auxiliary beam reinforcing line on the open cut foundation; digging hole digging piles on the reinforced roadbed, digging the hole digging piles to 15 m below a road shoulder, and pouring the hole digging piles; after the hole digging piles reach the designed strength, constructing transverse supports between the two rows of hole digging piles, excavating a soil layer between the two rows of hole digging piles in a layered mode, forming a drilled pile construction foundation pit, and the transverse supports are constructedat the bottom of the drilled pile construction foundation pit; the drilled pile construction foundation pit is used as a construction platform, constructing drilled piles, after drilled pile construction is completed, backfilling the drilled pile construction foundation pit, and dismantling the temporary auxiliary beams; the drilled piles serve as D-shaped auxiliary beam supporting piles, erecting a D-shaped auxiliary beam, and constructing transverse supports between the drilled piles; excavating a frame foundation pit below the D-shaped auxiliary beams, and constructing a frame bridge typetunnel; and backfilling the frame foundation pit, removing the D-shaped auxiliary beam, and recovering the line.
本发明公开了一种下穿铁路框架桥式隧道的D型便梁架空方法，包括：利用天窗时间，在既有铁路路基上施工明挖基础；在明挖基础上架设临时便梁加固线路；在加固后的路基上开挖挖孔桩，挖孔桩挖至路肩以下15m，并进行挖孔桩浇筑；待挖孔桩达到设计强度后，施工两排挖孔桩之间的横向支撑，并分层开挖两排挖孔桩之间的土层，形成钻孔桩施工基坑，在钻孔桩施工基坑底部施工横向支撑；利用钻孔桩施工基坑作为施工平台，施工钻孔桩，在钻孔桩施工完成后，回填钻孔桩施工基坑，拆除临时便梁；将钻孔桩作为D型便梁支承桩，架设D型便梁，施工钻孔桩之间的横向支撑；在D型便梁下开挖框架基坑，施工框架桥式隧道；回填框架基坑，拆除D型便梁，恢复线路。
D-shaped temporary beam erecting method for underneath pass railway frame bridge type tunnel
The invention discloses a D-shaped temporary beam overhead method for an underneath passing a railway frame bridge tunnel, which comprises the following steps of: constructing an open cut foundation on an existing railroad bed by using skylight time; erecting a temporary auxiliary beam reinforcing line on the open cut foundation; digging hole digging piles on the reinforced roadbed, digging the hole digging piles to 15 m below a road shoulder, and pouring the hole digging piles; after the hole digging piles reach the designed strength, constructing transverse supports between the two rows of hole digging piles, excavating a soil layer between the two rows of hole digging piles in a layered mode, forming a drilled pile construction foundation pit, and the transverse supports are constructedat the bottom of the drilled pile construction foundation pit; the drilled pile construction foundation pit is used as a construction platform, constructing drilled piles, after drilled pile construction is completed, backfilling the drilled pile construction foundation pit, and dismantling the temporary auxiliary beams; the drilled piles serve as D-shaped auxiliary beam supporting piles, erecting a D-shaped auxiliary beam, and constructing transverse supports between the drilled piles; excavating a frame foundation pit below the D-shaped auxiliary beams, and constructing a frame bridge typetunnel; and backfilling the frame foundation pit, removing the D-shaped auxiliary beam, and recovering the line.
本发明公开了一种下穿铁路框架桥式隧道的D型便梁架空方法，包括：利用天窗时间，在既有铁路路基上施工明挖基础；在明挖基础上架设临时便梁加固线路；在加固后的路基上开挖挖孔桩，挖孔桩挖至路肩以下15m，并进行挖孔桩浇筑；待挖孔桩达到设计强度后，施工两排挖孔桩之间的横向支撑，并分层开挖两排挖孔桩之间的土层，形成钻孔桩施工基坑，在钻孔桩施工基坑底部施工横向支撑；利用钻孔桩施工基坑作为施工平台，施工钻孔桩，在钻孔桩施工完成后，回填钻孔桩施工基坑，拆除临时便梁；将钻孔桩作为D型便梁支承桩，架设D型便梁，施工钻孔桩之间的横向支撑；在D型便梁下开挖框架基坑，施工框架桥式隧道；回填框架基坑，拆除D型便梁，恢复线路。
D-shaped temporary beam erecting method for underneath pass railway frame bridge type tunnel
一种下穿铁路框架桥式隧道的D型便梁架空方法
CHEN HONGCHUN (Autor:in) / XU JIANHUA (Autor:in) / LUO XINGWEN (Autor:in) / XU ZHIYAN (Autor:in) / LIU FAMING (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
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