专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2005344498A Floating preventive block for manhole 审中-公开
标题翻译：浮标预制块
公开(公告)号：JP2005344498A
公开(公告)日：2005-12-15
申请号：JP2004198664
申请日：2004-06-07
申请人： Akira Tanaka , 彰田中
发明人： TANAKA AKIRA , NOMACHI AKIHIKO
IPC分类号： E02D29/12
摘要： PROBLEM TO BE SOLVED: To realize the floating prevention of a manhole in the case of an earthquake although the base of the manhole is formed in a plane and the base of the manhole is easy to receive the effects of a water pressure and a water flow due to a liquefaction phenomenon because a side face on the vertical pipe side of the manhole is formed in a vertical shape to the base though there is the problem that a floating phenomenon due to the liquefaction phenomenon in the case of the earthquake is easy to occur in conventional manholes.
SOLUTION: A floating preventive block for the manhole is formed in a constitution in which a conical block is installed on the base for the manhole for dispersing the water pressure and the water flow to the manhole due to the liquefaction phenomenon. Consequently, the dispersion of the water pressure and the water flow is realized by side faces at inclinations of the block and a buoyancy can be reduced. The effects of the water pressure and the water flow received by the side faces of the vertical pipe of the manhole can be lightened because the outside diameter of the block is projected from that of the manhole, and the floating phenomenon of the manhole can be prevented because a repulsion against the water pressure and the water flow is generated by a pressure by soil and sand or the like in the projecting surfaces.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了在地震的情况下实现人孔的浮动预防，尽管人孔的底部形成在平面中，并且井孔的底部容易受到水压的影响，由于液晶现象导致的水流，因为井眼的垂直管侧的侧面形成为与基座垂直的形状，但是存在由于地震时的液化现象引起的浮动现象是容易发生在常规的人孔中。解决方案：用于人孔的浮动防止块形成为其中在用于人孔的基座上安装锥形块以由于液化现象将水压和水流分散到人孔的构造。因此，通过在块体的倾斜处的侧面实现水压和水流的分散，并且可以减小浮力。由于块体的外径从人孔的外径突出，因此可以减轻由人孔垂直管的侧面接收的水压和水流的影响，并且可以防止人孔的浮动现象因为通过在突出表面中的土壤和沙子等的压力产生抵抗水压和水流的排斥。版权所有（C）2006，JPO＆NCIPI

IPRDB

热门服务

关于我们

友情链接

联系方式