The present invention relates to a combined adjustable weight hydraulic pressure sinking correction system for caisson. The adjustable weight is evenly distributed along the outer wall of caisson on the cap, forming a set of vertical downward gravity caisson mechanism provided by the self-weight and adjustable weight of the cap. The outer wall of caisson is provided with a plurality of bracket reaction frames, and the upper part of the bracket reaction frame is provided with a one-way self-locking hydraulic piercing jack, and the self-locking hydraulic piercing Jack passes through steel. The twisted wire connects the cap to form a set of graded partial pressure around the caisson, adjusts the height difference of the caisson and assists the deviation correction mechanism of the caisson. The invention can solve the difficulty of sinking in the caisson and the sinking coefficient is too small. The pressure sinking system can increase the vertical sinking force of the caisson and the sinking coefficient of the caisson according to the need without increasing the self-weight of the caisson. When the elevation deviation of caisson occurs, the hydraulic pressure of jacks in different areas can be adjusted to exert pressure on different areas of caisson to help correct the deviation. Adjustable counterweight can be repeatedly applied to a variety of similar projects.
【技术实现步骤摘要】
沉井组合式可调配重液压压沉纠偏系统
本专利技术涉及一种沉井纠偏系统,尤其是一种可根据沉井下沉系数和偏差情况,提供沉下压力并辅助纠偏的纠偏系统。
技术介绍
沉井是一种地面上制作井筒,通过井内取土使之下沉至地下预定深度的地下结构,沉井下沉主要依靠沉井自身重量,克服过程中遇到的刃脚正面承载力、侧壁摩阻力和水浮力下沉。当沉井下沉深度过深,侧壁摩阻力较大,或沉井穿越坚硬土层,正面承载力较大,或沉井采用不排水下沉,沉井受浮力较大时,都将减小沉井下沉系数,导致沉井下沉困难,单纯依赖于沉井自重破土下沉较为困难。沉井下沉过程中必然会产生各方向高程差,除有针对性的增加或减少特定区域的沉井出土量之外,缺乏有效手段实现对沉井四周各方向高差的有效控制,并有针对性的改善各区域下沉速度。
技术实现思路
本专利技术是要提供一种沉井组合式可调配重液压压沉纠偏系统,该系统可根据沉井下沉系数和偏差情况,提供压沉下压力并辅助纠偏。为解决上述问题,本专利技术的技术方案是:一种沉井组合式可调配重液压压沉纠偏系统,包括沉井底部基础、牛腿反力架,沉井底部基础的承台上沿沉井外壁四周均布可调配重,形成一套由承台自重和可 ...
【技术保护点】
1.一种沉井组合式可调配重液压压沉纠偏系统,包括沉井底部基础、牛腿反力架,沉井底部基础的承台上沿沉井外壁四周均布可调配重,形成一套由承台自重和可调配重提供竖向向下重力沉井机构,沉井外壁设置多个牛腿反力架,牛腿反力架上部设置单向自锁液压穿心千斤顶,自锁液压穿心千斤顶通过钢绞线连接承台,形成一套沉井四周各向的分级分压,调节沉井高差,辅助沉井纠偏机构。
【技术特征摘要】
1.一种沉井组合式可调配重液压压沉纠偏系统,包括沉井底部基础、牛腿反力架,沉井底部基础的承台上沿沉井外壁四周均布可调配重,形成一套由承台自重和可调配重提供竖向向下重力沉井机构,沉井外壁设置多个牛腿反力架,牛腿反力架上部设置单向自锁液压穿心千斤顶,自锁液压穿心千斤顶通过钢绞线连接承台,形成一套沉井四周各向的分级分压,调节沉井高差,辅助沉井纠偏机构。2.根据权利要求1所述的沉井组合式可调配重液压压沉纠偏系统,其特征在于:所述钢绞线下端通过锚固设施与承台锚固连接。3.根据权利要求1所述的沉井组合式可调配...
【专利技术属性】
技术研发人员:张海锋,徐英武,徐杰,王涛,徐玉夏,熊菲,冯春潮,
申请(专利权)人:上海市基础工程集团有限公司,
类型:发明
国别省市:上海,31
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。