欢迎来到山东途畅路桥工程有限公司官网!

logo

  1. 专注强夯机租赁,液压冲击夯租赁、强夯工程施工碎石桩等
  2. 地基软基处理于一体的高质量基础工程施工公司

全国施工租赁热线

18264104888

强夯机租赁对回填土要求是什么?

网址:http://www.sddhfjx.cn/   发布日期:2021-06-21 关注次数:
强夯机租赁对回填土要求较高,要考虑回填土中是否含有膨胀物质。强夯机租赁施工的目的是为了提高地基土的承载力,降低土体的压缩度,液压式强夯机租赁,避免后期出现不均匀沉降,路基强夯机租赁,如果回填土中含有膨胀体的话,地基的不稳定性增加,对后期建筑物的基础结构有着的影响。强夯机租赁施工时考虑震动,强夯机租赁施工会产生较大的震动,如地下水较浅,震动会以水为介质传播。震动的衰减较小,会让震动的破坏性增加。
The lease of dynamic compaction machine has higher requirements on backfill soil, so it is necessary to consider whether the backfill soil contains expansive material. The purpose of lease construction of dynamic compaction machine is to improve the bearing capacity of foundation soil and reduce the compressibility of soil. Lease of hydraulic dynamic compaction machine can avoid uneven settlement in the later stage. Lease of dynamic compaction machine for subgrade can increase the instability of foundation if the backfill contains expansive body, which has a great impact on the foundation structure of buildings in the later stage. Vibration will be considered in the lease construction of dynamic compaction machine, which will produce large vibration. If the groundwater is shallow, the vibration will be transmitted by water. The attenuation of vibration is small, which will increase the destructiveness of vibration.
强夯机租赁
考虑抗浮。地下水位较浅,在结构设计时需要考虑抗浮。在强夯机租赁处理地下水较浅的回填层时,需要考虑到降水强夯机方案,将地下水位降低到地下2-5米,再开始强夯机租赁施工,会有较好的效果。对强夯机效果的影响,---是细颗粒土,含水较高饱和后,强夯机租赁效果会降低,无法大道设计的要求。如果形成淤泥会造成橡皮土。对强夯机施工有非常大影响。
Consider anti floating. Due to the shallow groundwater level, anti floating should be considered in structural design. When leasing the dynamic compaction machine to deal with the backfill layer with shallow groundwater, it is necessary to consider the scheme of dewatering the dynamic compaction machine. Lowering the groundwater level to 2-5 meters underground and starting the leasing construction of the dynamic compaction machine will have a good effect. The impact on the effect of dynamic compaction machine is fine-grained soil. When the water content is high and saturated, the leasing effect of dynamic compaction machine will be reduced, which can not meet the design requirements. If silt is formed, it will cause rubber soil. It has a great influence on the construction of dynamic compaction machine.
强夯机租赁加固湿陷性黄土的作用机理:黄土是由沙砾、粗粉粒、大孔隙胶结构组成,黄土湿陷性是由于水和外力的作用产生的-附加下沉。强夯是将大吨位重锤起吊到一定高度后自由落下.
The mechanism of dynamic compaction machine strengthening collapsible loess: loess is composed of gravel, coarse silt and macroporous glue structure, and collapsibility of loess is caused by water and external force - Additional subsidence. Dynamic compaction is to lift the heavy hammer to a certain height and drop it freely
在极短时间内对地基土体施加一个的冲击能量,反复冲击及其产生的压缩波、剪切波和瑞利波,使土体受到瞬间的加荷(受压)、卸荷(受拉)及剪切的反复作用,土中孔隙压缩,同时土体周围产生裂隙,孔隙水顺利排出,土体迅速固结,使土粒原有的接触形式破坏而产生位移,变为新的较为稳定的接触形式,从而达到增加土体密度、提高强度的目的。
In a very short time, an impact energy is applied to the foundation soil. The repeated impact and the generated compression wave, shear wave and Rayleigh wave make the soil subject to the repeated action of instantaneous loading (compression), unloading (tension) and shear. The pores in the soil are compressed. At the same time, cracks are generated around the soil, the pore water is discharged smoothly, and the soil is consolidated rapidly, So that the original contact form of soil particles will be destroyed and displacement will be produced, which will become a new and more stable contact form, so as to increase the density and strength of soil.
  • 标签: