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强夯施工中橡胶土现象的成因与解决

网址:http://www.sddhfjx.cn/   发布日期:2021-04-22 关注次数:
强夯是一种可以提高地基的承载力,减少变形量的施工方法,其优点非常明显。但是,强夯施工后,地基中可能存在橡胶土现象。针对这种现象,强夯机出租施工公司总结了成因和预防措施,为基础动力夯实项目提供参考和参考。
Dynamic compaction is a construction method which can improve the bearing capacity of the foundation and reduce the deformation, and its advantages are very obvious. However, rubber soil may exist in the foundation after dynamic compaction. In view of this phenomenon, the dynamic compaction machine rental Construction Company summarized the causes and preventive measures, to provide reference for the foundation dynamic compaction project.
在强夯施工现场,有时地基的含水量很丰富,一旦含水量达到一定值,就可能形成橡胶土。如果施工现场遇到强度高降雨,将会增加基础土壤的水分含量,并容易产生橡胶土壤。为了使动态压实机平稳地夯实地面,要首先释放地层中的孔隙水压力,并且要同时清理孔隙中的水。另外,在压实施工之后,强夯施工公司开始对场地进行平整,如果基础被轮式车辆反复滚动,也会发生上述现象。
In the dynamic compaction construction site, sometimes the water content of the foundation is very rich, once the water content reaches a certain value, it may form rubber soil. If the construction site encounters high intensity rainfall, it will increase the moisture content of the foundation soil, and it is easy to produce rubber soil. In order to make the dynamic compactor tamp the ground smoothly, it is necessary to first release the pore water pressure in the formation and clean up the pore water at the same time. In addition, after the compaction construction, the dynamic compaction construction company starts to level the site. If the foundation is rolled repeatedly by wheeled vehicles, the above phenomenon will also occur.
鉴于地基含水量高,强夯公司通常会在现场设置垂直排水结构或铺设一层沙石垫层,同时会有足够的间歇时间等待直到孔隙水压力完全消失。完全压缩或执行动态压缩替换。如果在完全夯实之前下雨,推入夯坑的土壤会吸收水分,因此要事先进行覆盖和防水工作。
In view of the high water content of foundation, dynamic compaction companies usually set up vertical drainage structure or lay a layer of sand gravel cushion on site, and there will be enough intermittent time to wait until the pore water pressure completely disappears. Full compression or dynamic compression replacement. If it rains before full tamping, the soil pushed into the tamping pit will absorb moisture, so it needs to be covered and waterproof in advance.
完全夯实操作完成后,严禁带轮车辆滚动。如果橡胶土的面积很小,可以安排动压实施工人员及时将其挖出,然后更换一些干土和岩石材料来填充补充压实。相反,如果橡胶土壤面积较大且土壤稀薄,则应使用推土机或其他方法进行处理。
After the complete tamping operation is completed, it is strictly forbidden to roll the vehicles with wheels. If the rubber soil area is very small, dynamic compaction construction personnel can be arranged to dig it out in time, and then replace some dry soil and rock materials to fill and supplement compaction. On the contrary, if the rubber soil area is large and the soil is thin, bulldozer or other methods should be used for treatment.
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