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土工格栅如何加固膨胀土路堤边坡
日期:2020年 04月 29日 共阅:58次 文章来源:山东肥城联谊工程塑料有限公司
       土工材料在我国的工程中应用越来越广泛,对土方工程中起到分隔、增强、过滤、排水、防护等作用,土工格栅即是其中起增强加固作用的-一种材料,土工格栅设计为网格状结构,在土体中并不完全隔离土层,土石与格栅之间产生磨擦咬合,增加了土体的整体性和承受应力强度。土工格栅品种较多,在施工开始,即按设计要求并结合施工实际,对各种材料进行了比选。
Geogrid is a kind of material which can strengthen and strengthen. Geogrid is designed as a grid structure. It does not completely separate the soil layer in the soil, and there is friction between the earth and the grid, The integrity and stress strength of soil are increased. There are many kinds of geogrid. At the beginning of construction, according to the design requirements and combined with the construction practice, various materials are compared and selected.
      土工格栅为高密度聚乙烯塑料网格加筋料,矩形孔,幅宽4 n.黑色。每卷长4Qm,是用高分子材料在一定温控条件下做定向拉伸而成,其抗拉强度是普通塑料的10倍甚至更高,它具有“重量轻、变形小、强度高、耐老化、使用寿命长”等特点。
The geogrid is made of high-density polyethylene plastic mesh reinforced material, with rectangular hole, width of 4 N and black. Each roll is 4qm long, which is made of polymer materials under certain temperature control. Its tensile strength is 10 times or higher than that of ordinary plastics. It has the characteristics of "light weight, small deformation, high strength, aging resistance and long service life".
     铺设土工格栅。在整平压实的路基面上,按已放出的土工格栅的横向位置,沿路基纵向展开铺平土工格栅。土工格栅外侧距离边坡留出01m距离,防止土工格栅外露。斜坡地段底层坡脚铺设时,应将边坡坡脚处地面土工格栅范围内的基底铲成平台,以保证土工格栅水平铺设,加强路基边坡稳定。

Lay geogrid. On the leveled and compacted subgrade surface, the geogrid shall be paved longitudinally along the subgrade according to the horizontal position of the geogrid that has been set out. A distance of 01M shall be reserved from the outside of the geogrid to the side slope to prevent the geogrid from being exposed. When laying the bottom slope toe of slope section, the base within the scope of Geogrid on the ground at the slope toe shall be spaded into a platform to ensure the horizontal laying of Geogrid and strengthen the stability of subgrade slope.

土工格栅

       土工格栅似向接头,采用搭接绑扎,搭接长度不小于30amn, 每隔0 5m布一个结扎点。用低压聚乙烯单线绑扎。铺设摊平时,严禁各种机械设备在裸露的土工格栅上通行作业,卸土后土工格栅幅寬范围内由人工铺土并摊平,防止被机械设备碾断以保证土工格栅平整.不起鼓,不起皱。
The similar joints of geogrid shall be bound with lap joint, the lap length shall not be less than 30 amn, and a tie point shall be arranged every 0.5m. Bind with low-pressure polyethylene single wire. During paving and spreading, it is strictly forbidden for all kinds of mechanical equipment to pass through the exposed geogrid. After unloading, the geogrid shall be paved and leveled manually within the wide range of the geogrid, so as to prevent it from being broken by mechanical equipment to ensure the geogrid is flat, bulge free and wrinkle free.
      (1) 国内生产的土工格栅均为黑色,施工中如露天存放,长期受日光照射.会加快老化速度.降低其使用性能.因此宜放在避光处保存.有条件可仓储。
      (1) The geogrids produced in China are all black. If they are stored in the open air and exposed to sunlight for a long time during construction, they will accelerate the aging speed and reduce their service performance. Therefore, they should be stored in a dark place. They can be stored if possible.
      (2) 使用土工格栅加固膨胀土路堤边坡,除对土工格栅本身性能有明确要求外,对填料的粒径亦有严格要求。该材料适用于细粒土为填料的路基边坡加固。块状土需解小粉碎后方能填筑,以免碾压时剪断土工格栅而影响加固效果。
      (2) When geogrid is used to reinforce the embankment slope of expansive soil, there are not only clear requirements for the performance of geogrid itself, but also strict requirements for the particle size of filler. The material is suitable for the reinforcement of subgrade slope with fine-grained soil as filler. The massive soil can only be filled after being disintegrated to avoid cutting off the geogrid and affecting the reinforcement effect.
      (3) 影响土工格栅加固的另一重要因素是填料最佳含水量的控制,根据填料土质不同,施工时将其含水量控制到最佳值,碾压密实度值越高,加固效果越好。
      (3) Another important factor affecting the geogrid reinforcement is the control of the optimum moisture content of the filler. According to the different soil properties of the filler, the moisture content is controlled to the optimum value during construction. The higher the compaction density value is, the better the reinforcement effect is.
      (4) 由于膨胀土具有湿胀干缩的特性,土工格栅的铺设宜选在雨水较少的季节施工。以利于控制、改善膨胀土的含水量,使边坡加固效果达到最佳。
      (4) Because the expansive soil has the characteristics of wet expansion and dry shrinkage, the geogrid should be laid in the season with less rain. In order to control and improve the water content of expansive soil, the effect of slope reinforcement is the best.
      相信大家看完以上内容以后,应该也对土工格栅加固膨胀土路堤边坡有所了解了,希望会对大家有所了解吧。
I believe that after reading the above content, you should also know something about geogrid reinforcement of expansive soil embankment slope, and hope to know something about you.
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