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这篇文章,叙述了对某线梅溪河大桥8号墩墩身下沉倾斜,采用分浅孔注浆作临时地下帷幕,在施工时防水防坍,随后用挖孔桩就地加固的施工情况。全文分三大段。一、施工步骤:(一)临时支护;(二)化学注浆形成临时地下防渗帷幕:1、浆液的技术要求及配方选择;2、化学注浆的机具和设备;3、化学注浆。(三)挖孔桩施工及灌筑承台钢筋混凝土;(四)起移梁拨正梁位。二、主要工程数量;三、我们的体会与存在的问题。 本刊在今年第五期已刊出第一部份第(二)节中的1、2两段,这一期将其余部份刊完。
This article describes the subsidence of a pier at No. 8 Pier of Meixi River Bridge in a certain line, using sub-shallow hole grouting as temporary underground curtain, waterproofing and slumping during construction, and subsequent reinforcement by digging hole piles Happening. The full text is divided into three sections. First, the construction steps: (a) temporary support; (b) chemical grouting to form a temporary underground impervious curtain: 1, slurry technical requirements and formulation options; 2, chemical grouting equipment and equipment; 3, chemical grouting . (C) digging pile construction and filling platform reinforced concrete; Second, the number of major projects; Third, our experience and problems. In the fifth issue of this year, we published the first and second two paragraphs of section (II) of the first part, and the rest of the issue is finished.