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强夯地基处理过程中需要做的工作

网址:http://www.sddhfjx.cn/   发布日期:2022-07-30 关注次数:
随着紧缩模量的进步和紧缩性的降低。由于土壤类型的不同,强夯加固的机理也不同。那么强夯地基处理过程中需要做的工作是什么呢?
With the improvement of shrinkage modulus and the decrease of shrinkage. Due to different soil types, the mechanism of dynamic consolidation is also different. So what is the work that needs to be done in the process of dynamic compaction foundation treatment?
强夯施工前的准备检查
Preparation and inspection before dynamic compaction construction
由于我国建设工程项目的快速发展,近几年来由于土地资源短缺,出现了大量的滩涂、山坡、山谷回填工程。为了节约资源,减少污染大多数公司都会选着强夯施工来进行地基处理,而其他地基处理方法经济,可广泛应用于工程中。一般要求地基处理后地基承载力在180kPa~200kpa之间,并结合本人的强夯工程实践,简要讨论了在地基处理条件下强夯工程中应注意或控制的问题。
Due to the rapid development of construction projects in China, in recent years, due to the shortage of land resources, there have been a large number of beach, hillside and valley backfilling projects. In order to save resources and reduce pollution, most companies will choose dynamic compaction construction for foundation treatment, while other foundation treatment methods are economical and can be widely used in projects. Generally, the bearing capacity of the foundation after foundation treatment is required to be between 180kpa~200kpa. Combined with my dynamic compaction engineering practice, this paper briefly discusses the problems that should be paid attention to or controlled in the Dynamic Compaction Engineering under the condition of foundation treatment.
1、强夯地面土层稳定,回填土的强夯法应用领域需要自然堆栈预压,自然预压桩加载时,总之之前进行强夯和强夯置换达到自然土壤固结或预压固结等。
1. The soil layer of the dynamic compaction ground is stable, and the application field of the dynamic compaction method of backfill requires natural stack preloading. When the natural preloading pile is loaded, in short, the dynamic compaction and dynamic compaction replacement are carried out before to achieve natural soil consolidation or preloading consolidation, etc.
2、大面积施工前的场地条件:施工前应将场地夷平,如果场地表面有一块巨大的孤立石先清理,动态夯实场地表面上有许多花岗岩巨石,工程技术人员都感到头痛。后,决定在夯实后清理地面石料,并将场地夷平。
2. Site conditions before large-scale construction: the site should be leveled before construction. If there is a huge isolated stone on the surface of the site, clean it first, and dynamically compact it. There are many granite boulders on the surface of the site, which makes engineers and technicians feel headache. After compaction, it was decided to clean the ground stones and level the site.
强夯机租赁
3、地表下是否有地下水:强夯场地地表下有地下水时,强夯过程需要采取排水措施,如挖集坑、排水沟等;在强夯过程中,如果不排除地下水,土壤中的空隙水就不会被挤出,土壤孔隙度很高,土壤密度很差,强夯后的场地将不能满足设计要求。
3. Whether there is groundwater under the surface: when there is groundwater under the surface of the dynamic compaction site, drainage measures need to be taken during the dynamic compaction process, such as digging sump, drainage ditch, etc; In the process of dynamic compaction, if the groundwater is not excluded, the void water in the soil will not be squeezed out. The soil porosity is very high and the soil density is very poor. The site after dynamic compaction will not meet the design requirements.
强夯机租赁厂家提醒您,随着土壤密度的提高,土壤的抗剪强度提高,收缩性降低。因此,强夯法加固处理多孔隙。粗颗粒。非饱和土的本质是能量密集。对于饱和细颗粒土,强夯地基的处理机制是能量固结。
The dynamic compaction machine rental manufacturer reminds you that with the increase of soil density, the shear strength of soil increases and the shrinkage decreases. Therefore, the dynamic compaction method is used to reinforce the multi pores. Coarse particles. The essence of unsaturated soil is energy intensive. For saturated fine-grained soil, the treatment mechanism of dynamic compaction foundation is energy consolidation.
当巨大的冲击能量施加到土壤中时,会产生很大的应力波,存在于土壤中的微气泡体积会积聚和收缩,从而收缩土壤体积。土壤体积积积累和收缩后,孔隙水压力会增加,增加到上层压力值,土壤会液化(部分液化),然后土壤结构会被破坏,土壤会产生很多裂缝。
When huge impact energy is applied to the soil, a large stress wave will be generated, and the volume of microbubbles in the soil will accumulate and shrink, thus shrinking the soil volume. After the accumulation and contraction of soil volume, the pore water pressure will increase to the upper pressure value, and the soil will be liquefied (partially liquefied), and then the soil structure will be destroyed, and the soil will produce many cracks.
在强夯地基的处理中,重要的是土壤的加密。土壤有其三相性。在加固过程中,要注意土壤的含水量。当土壤达到其含水量时,需要保持土壤的含水量。更多相关内容就来我们网站http://www.sddhfjx.cn咨询吧。
In the treatment of dynamic compaction foundation, it is important to densify the soil. Soil has three phases. In the process of reinforcement, attention should be paid to the moisture content of the soil. When the soil reaches its moisture content, it is necessary to maintain the moisture content of the soil. Come to our website for more relevant content http://www.sddhfjx.cn Consult.
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