CAJ | 학술논문

泰州大桥北锚碇沉井基础长67.9 m、宽52 m、高57 m,在沉井下沉的初期,采用降排水下沉.降排水下沉施工成本相比不排水下沉低,且下沉效率高,易控制,可形成良好的下沉导向,并确保沉井的下沉速度和精度,适宜在粉细砂、软塑性亚黏土等地质条件下采用.文章以泰州大桥北锚碇沉井基础为例,介绍了超大型沉井降排水施工的降排水下沉施工工艺.
태주대교북묘정침정기출장67.9 m、관52 m、고57 m,재침정하침적초기,채용강배수하침.강배수하침시공성본상비불배수하침저,차하침효솔고,역공제,가형성량호적하침도향,병학보침정적하침속도화정도,괄의재분세사、연소성아점토등지질조건하채용.문장이태주대교북묘정침정기출위례,개소료초대형침정강배수시공적강배수하침시공공예.
The dimension of the north anchorage of Taizhou Bridge is 67.9 m long, 52 m wide and 57 m high. The water dredging method was adopted at the beginning of the sinking process. The cost of water dredging method is lower than the un drained dredging method and the efficiency is much higher and more controllable. This method can form good sinking direction to assure the sinking velocity and preciseness, especially suitable for the ge-ological condition of clay and clayey. This paper introduced the water dredging construction method of the super scale caisson based on the north anchorage of Taizhou Bridge.