行业资讯
土的含水量对压路机压实过程的影响
来源：/ 日期：2023-01-20
压路机作为道路施工中的主要机械工具，被广泛的应用在各种道路施工中。你知道土的含水量对压路机压实过程的影响怎样吗？下面济南压路机租赁厂家为您解说。
As the main mechanical tool in road construction, road roller is widely used in various road construction. Do you know how the moisture content of soil affects the compaction process of the roller? Next, Jinan roller rental manufacturer will explain to you.
在压实过程中，土或材料的含水量对所能达到的密实度起着非常大的作用。锤击或碾压的功需要克服土颗粒问的内摩擦阻力和粘结力，才能使土颗粒产生位移并互相靠近。土的内摩擦阻力和粘结力是随密实度而增加的。土的含水量小时，土颗粒间的内摩擦阻力大，压实到一定程度后，某一压实功已不再能克服土的阻抗力，压实所得的干密度小。
In the process of compaction, the water content of soil or material plays a very important role in the compactness that can be achieved. The work of hammering or rolling needs to overcome the internal friction resistance and cohesion between the soil particles, so that the soil particles can move and close to each other. The internal friction resistance and cohesion of soil increase with the compactness. When the water content of soil is small, the internal friction resistance between soil particles is large. After compaction to a certain degree, a certain compaction work can no longer overcome the resistance of soil, and the dry density obtained by compaction is small.
当土的含水量逐渐增加时，水在土颗粒问起着润滑作用，使土的内摩擦阻力减小。因此同样的压实功可以得到较大的干密度。在这个过程中，单位土体中空气的体积逐渐减小，而固体体积和水的体积则逐渐增加。当土的含水量继续增加到超过某一限度后。
When the water content of the soil increases gradually, the water plays a lubricating role between the soil particles, which reduces the internal friction resistance of the soil. Therefore, the same compaction work can obtain larger dry density. In this process, the volume of air in the unit soil gradually decreases, while the volume of solid and water gradually increases. When the water content of soil continues to increase beyond a certain limit.
虽然土的内摩擦阻力还在减小，但单位土体中的空气体积已减到小限度，而水的体积却在不断增加。由于水是不可压缩的．因此在同样的压实功下，土的干密度反而逐渐减小。
Although the internal friction resistance of soil is still decreasing, the volume of air in unit soil has been reduced to a minimum, while the volume of water is increasing. Because water is incompressible, the dry density of soil decreases gradually under the same compaction work.
土的干密度与含水量的这样一种紧密关系，就形成了驼峰形击实曲线。因此。细颗粒七以及天然砂砾土、红土砂砾、级配碎石、级配砾石、石灰稳定土和水泥稳定土等多种路面材料，都只有在一定的含水量条件下才能压实到大干密度。
Such a close relationship between dry density and water content of soil forms a hump-shaped compaction curve. Therefore. Fine grain VII, natural gravel soil, laterite gravel, graded gravel, graded gravel, lime stabilized soil, cement stabilized soil and other pavement materials can be compacted to large dry density only under certain water content.
在施下现场，用某种压路机碾压含水量过小的土或级配集料，要达到高的压实度是困难的；如土的含水量超过佳值时，要达到较大的压实度同样是困难的。因此，在特殊干旱和特殊潮湿地区，在无法或不能采取适宜措施的情况下，实际施工中往往不得小降低对压实度的要求。更多相关内容就来我们网站咨询吧！
At the construction site, it is difficult to achieve high compactness by rolling the soil or graded aggregate with too small water content with a certain roller; If the moisture content of the soil exceeds the optimum value, it is also difficult to achieve greater compaction. Therefore, in the special arid and humid areas, when appropriate measures cannot be taken or cannot be taken, the requirements for compactness should not be reduced in actual construction. Come to our website for more relevant content Ask!
公司地址：济南市商河县贾庄镇民营经济创业园
公司名称:2023澳门正版资料免费 
备案号：