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强夯工程中地基总沉降可分为哪几种情况

网址:http://www.sddhfjx.cn/   发布日期:2020-09-23 关注次数:
瞬时沉降主要来源于外部荷载引起的剪切效应引起的土体侧向变形。侧向挤压引起的土体位移变形占基础总沉降的一定比例。一般认为瞬时沉降由两部分组成:一是由土的弹性变形引起的;另一部分是由于土壤塑性区的发展造成的。强夯机租赁目前,初始结算的核算都是针对前期结算,后期结算没有令人信服的核算方法。其中大部分是在前一部分结果的基础上做了一些修正,以考虑塑性变形的影响。
The instantaneous settlement mainly comes from the lateral deformation of soil caused by shear effect caused by external load. The displacement and deformation of soil caused by lateral compression accounts for a certain proportion of the total foundation settlement. It is generally believed that the instantaneous settlement consists of two parts: one is caused by the elastic deformation of soil; the other is caused by the development of soil plastic zone. At present, the accounting of the initial settlement of dynamic compaction machine leasing is for the early settlement, and there is no convincing accounting method for the later settlement. Most of them are modified on the basis of the previous results to consider the effect of plastic deformation.
强夯地基沉降
Dynamic compaction foundation settlement
固结沉降是由于外部荷载引起的超孔隙水压力的水力梯度促使水从土壤中排出,应力增量向土壤骨架转移而产生的沉降。这是一个与时间相关的过程,随着第一次发作量的变化。固结沉降占总沉降的比例最大,固结变形持续时间长,与地基土性质、土层厚度、排水条件和土体固结系数有关。
Consolidation settlement is caused by the hydraulic gradient of excess pore water pressure caused by external load, which causes water to drain out of soil and transfer stress increment to soil skeleton. It's a time-dependent process that changes with the amount of the first attack. The consolidation settlement accounts for the largest proportion of the total settlement, and the consolidation deformation lasts for a long time, which is related to the soil properties, soil thickness, drainage conditions and soil consolidation coefficient.
强夯地基沉降
Dynamic compaction foundation settlement
二次固结沉降是在附加应力作用下,由于土骨架随时间推移而发生的缓慢沉降。因此,二次固结沉降,也称为徐变沉降,是工后沉降的主要组成部分。
Secondary consolidation settlement is the slow settlement of soil skeleton with time under the action of additional stress. Therefore, secondary consolidation settlement, also known as creep settlement, is the main component of post construction settlement.
一般来说,瞬时沉降通常用弹性理论求解。强夯队伍固结沉降通常采用分层总和法,其解由固结试验确定。二次固结沉降通常采用分层总和法求解,并根据蠕变试验确定参数。
Generally speaking, the instantaneous settlement is usually solved by elastic theory. The layered summation method is usually used for consolidation settlement of dynamic compaction team, and its solution is determined by consolidation test. The secondary consolidation settlement is usually solved by the layered summation method, and the parameters are determined according to the creep test.
以上是强夯工程中地基总沉降可分为哪几种情况内容,地基强夯价格小编希望能给你帮助,如果对 强夯工程中地基总沉降可分为哪几种情况还有疑问,可以直接联系我们!
The above is the dynamic compaction project in which the total settlement of the foundation can be divided into several cases of content, dynamic compaction of the foundation price small hope to give you help, if there are any questions about the total settlement of the foundation in the dynamic compaction project, you can contact us directly!
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