Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for improving jacking efficiency of large frame bridge
The invention discloses a construction method for improving the jacking efficiency of a large frame bridge. The construction method comprises the following construction steps of excavating a working pit, and prefabricating the frame bridge; constructing overhead piles, and erecting auxiliary beams and overhead lines; after the overhead operation of the line is completed, setting out the central axis of the frame bridge in place on one side of the non-working pit of the line, and excavating a channel by taking the central axis as a reference until reaching a jacking surface; jacking the frame bridge, excavating earthwork along the jacking section of the frame bridge in the channel, and discharging the earthwork from one side of the non-working pit of the line; in the jacking earth cutting process, adjusting the elevation position and the horizontal position of the frame bridge through overexcavation and under-excavation. According to the method, a reverse soil excavating and discardingprocess is adopted, the soil taking efficiency is improved, soil excavating and jacking are conducted at the same time, 24-hour continuous jacking is guaranteed, a traditional construction method thatexcavating and jacking are conducted alternately is changed, the construction period is shortened, the temporary beam leasing cost is saved, and the efficiency is good.
本发明公开了一种提高大型框架桥顶进效率的施工方法，包括以下施工步骤：开挖工作坑，预制框架桥；施工架空桩，架设便梁，架空线路；线路架空完成后，在线路非工作坑一侧放样出框架桥就位后的中轴线，以中轴线为基准，开挖一个通道，直达顶进面；框架桥顶进，在通道沿着框架桥顶进断面开挖土方，并从线路非工作坑一侧出土；在顶进挖土过程中，利用超挖和欠挖调整框架桥高程位置和水平位置。本发明采用反向挖土弃土的工艺，提高取土效率，挖土和顶进同时进行，保证24小时连续顶进，改变传统的开挖和顶进交替进行的施工方法，节约工期，节约便梁租赁费用，效率良好。
Construction method for improving jacking efficiency of large frame bridge
The invention discloses a construction method for improving the jacking efficiency of a large frame bridge. The construction method comprises the following construction steps of excavating a working pit, and prefabricating the frame bridge; constructing overhead piles, and erecting auxiliary beams and overhead lines; after the overhead operation of the line is completed, setting out the central axis of the frame bridge in place on one side of the non-working pit of the line, and excavating a channel by taking the central axis as a reference until reaching a jacking surface; jacking the frame bridge, excavating earthwork along the jacking section of the frame bridge in the channel, and discharging the earthwork from one side of the non-working pit of the line; in the jacking earth cutting process, adjusting the elevation position and the horizontal position of the frame bridge through overexcavation and under-excavation. According to the method, a reverse soil excavating and discardingprocess is adopted, the soil taking efficiency is improved, soil excavating and jacking are conducted at the same time, 24-hour continuous jacking is guaranteed, a traditional construction method thatexcavating and jacking are conducted alternately is changed, the construction period is shortened, the temporary beam leasing cost is saved, and the efficiency is good.
本发明公开了一种提高大型框架桥顶进效率的施工方法，包括以下施工步骤：开挖工作坑，预制框架桥；施工架空桩，架设便梁，架空线路；线路架空完成后，在线路非工作坑一侧放样出框架桥就位后的中轴线，以中轴线为基准，开挖一个通道，直达顶进面；框架桥顶进，在通道沿着框架桥顶进断面开挖土方，并从线路非工作坑一侧出土；在顶进挖土过程中，利用超挖和欠挖调整框架桥高程位置和水平位置。本发明采用反向挖土弃土的工艺，提高取土效率，挖土和顶进同时进行，保证24小时连续顶进，改变传统的开挖和顶进交替进行的施工方法，节约工期，节约便梁租赁费用，效率良好。
Construction method for improving jacking efficiency of large frame bridge
一种提高大型框架桥顶进效率的施工方法
DAI XIAOSONG (Autor:in) / MA XUEHUI (Autor:in) / YE YISHENG (Autor:in) / ZHONG QIKAI (Autor:in) / LIU CHENGGANG (Autor:in) / FAN CHI (Autor:in) / LEI LU'EN (Autor:in) / CUI HAOQI (Autor:in) / ZHAO HONGYIN (Autor:in)
16.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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