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路面工程裂缝病害的主要三种表现形式
网址:http://www.dhfjx.cn    发布时间:2019-04-03
济南移动碎石机租赁厂家就发现,在公路工程中,施工的质量问题会直接影响工程建成之后的使用效果,新建的工程可能不会马上显现出来,但是工程中所留的隐患会在使用过程当中表现出来,从而直接影响道路的使用安全,其中路面裂缝就是一种比较常见的隐患。
Jinan Mobile Stone Crusher Leasing Factory found that in highway engineering, the quality of construction will directly affect the use effect after the completion of the project, the new project may not appear immediately, but the hidden dangers left in the project will be shown in the use process, thus directly affecting the use of road safety, including pavement cracks is a relatively common hidden danger. 。
路面裂痕病害主要有纵向裂痕、横向裂痕、网状裂痕三种。
Pavement crack diseases mainly include longitudinal crack, transverse crack and reticular crack.
1、纵向裂痕
1. Longitudinal Cracks
纵向裂痕普通有两种:
There are two kinds of longitudinal cracks:
一种主要发作在紧急停车带或路肩部位,其外形是沿路肩边缘向内逐渐扩展,呈月牙形,这种裂痕容易使路基发作滑移,风险性很大;
One kind mainly occurs in the emergency parking belt or the shoulder part. Its shape is gradually expanding inward along the shoulder edge, showing crescent shape. This kind of crack easily makes the roadbed slip and has great risk.
另一种是发作在行车道部位,多为纵向条带状,裂痕两端未延伸到路堤边缘。产生缘由主要有:地基缘由、路基施工缘由、水的浸透毁坏、路面施工缘由。
The other is in the lane, mostly in the longitudinal strip, the cracks do not extend to the edge of the embankment. The main reasons are: foundation reason, roadbed construction reason, water immersion damage, pavement construction reason.
2、横向裂痕
2. Transverse cracks
横向裂痕是与路面中线近于垂直的裂痕,裂痕起初大多呈现于路面两侧的硬路肩,逐步开展而贯穿全路幅,贯穿裂痕沿路面大致呈平均散布。
Transverse cracks are nearly vertical cracks with the middle line of the pavement. At first, most of the cracks appear on the hard shoulders on both sides of the pavement, and gradually spread throughout the whole road, and the cracks along the pavement are roughly average.
横向裂痕成因主要有三个:
There are three main causes of transverse cracks:
(1)资料收缩惹起横向裂痕。
(1) Data shrinkage causes transverse cracks.
移动碎石机租赁厂家业务
(2)沥青及混凝土的温缩惹起的裂痕。
(2) Cracks caused by temperature shrinkage of asphalt and concrete.
(3)差别沉降惹起的横向裂痕。
(3) Transverse cracks caused by differential settlement.
3、网状裂痕
3. Reticular fissures
网裂是互相交织的疲倦裂痕, 它的初始形态是沿轮迹带呈现单条或多条平行的纵缝,然后,在纵缝间呈现横向和斜向衔接缝,构成缝网。
The net crack is a fatigue crack interwoven with each other. Its initial form is that there are one or more parallel longitudinal seams along the wheel track belt, and then there are horizontal and oblique joints between the longitudinal seams to form a seam net.
网裂主要是由于路面的整体强度缺乏而惹起的。缘由可能是由于路面呈现横向或纵向裂痕后未及时封填,致使水分渗入下层,使基层外表被泡软,在汽车荷载重复作用下,粉浆经过面层裂痕及空隙被压到外表产生唧浆,基层外表被逐渐淘空,产生网裂。另外,沥青老化和汽车严重超载,使基层产生疲倦毁坏也是招致沥青面层构成网裂的重要缘由。
The net crack is mainly caused by the lack of the overall strength of the road surface. The reason may be that the water infiltrates into the lower layer and makes the surface of the base soft. Under the repeated action of vehicle load, the slurry is compressed to the surface through the surface cracks and voids to produce slurry, and the surface of the base is gradually emptied, resulting in network cracks. In addition, the aging of asphalt and the serious overloading of automobiles cause fatigue and destruction of the base, which is also an important reason for the cracking of asphalt surface.
今天的精彩内容由济南移动碎石机租赁厂家整理提供,我们不仅提供移动碎石机的租赁,还有各种路基设备和路面设备的租赁业务,如有合作事宜的小伙伴欢迎光临我们的官网:http://www.dhfjx.cn
Today's exciting content is provided by Ji'nan Mobile Gravel Machine Leasing Factory. We not only provide mobile gravel machine leasing, but also various roadbed equipment and road equipment leasing business. If you have cooperation partners, you are welcome to visit our official website: http://www.dhfjx.cn.
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