土工格栅可以增加不良地基的稳定性

       土工格栅产品是现阶段的佳治理材料，双向塑料土工格栅厂家讲解，在施工前首先对材料加以严格检查，对土工格栅的质量符合图纸或规范要求，在采用土工格栅的路堤填筑正式开工前，结合工程先修筑试验路段，以指导施工本.地.生.活.网。如：土工格栅采用双向塑料土工格栅，要求纵向抗拉强度≥80kN/m、横向抗拉强度≥60kN/m。土工格栅拼接时，在受力方向连接处的强度不低于材料设计抗拉强度。为保证土工合成材料的整体性，土工搭接长度保证足够长，横向搭接长度大于0.3m，纵向搭接长度大于0.6m。铺设时，不得有褶皱和破坏。

Geogrid products are the best treatment materials at this stage. The manufacturers of two-way plastic geogrid explain that the materials shall be strictly inspected before construction, and the quality of geogrid shall meet the requirements of drawings or specifications. Before the formal commencement of embankment filling with geogrid, the test section shall be built in combination with the construction process to guide the construction. For example: the geogrid adopts two-way plastic geogrid, which requires the longitudinal tensile strength ≥ 80KN / M and the transverse tensile strength ≥ 60kn / m. When the geogrid is spliced, the strength of the joint in the stress direction shall not be lower than the design tensile strength of the material. In order to ensure the integrity of geosynthetics, the length of geosynthetics overlap shall be long enough. The length of transverse overlap shall be greater than 0.3m, and the length of longitudinal overlap shall be greater than 0.6m. When laying, there shall be no fold and damage.

       双向塑料土工格栅在公路上的修复作用。道路长期使用后，路面经常出现裂缝和损坏b~d~s~h~5~c~o~m。裂缝的根源往往是不稳定的碎石路基或地基。这种现象很难预防。解决办法是重新铺设公路墓，这需要大量的时间和金钱，影响车辆的行驶。因此，在路面上打钉的方法经常被用来临时解决这个问题。与上述传统方法相比，双向塑料土工格栅加固道路的优势更加突出。

The repair function of two-way plastic geogrid in highway. After long-term use of the road, cracks and damages often appear on the road surface. The root cause of cracks is often unstable gravel subgrade or foundation. This phenomenon is hard to prevent. The solution is to re lay the road tomb, which requires a lot of time and money, affecting the driving of vehicles. Therefore, the method of nailing on the road surface is often used to solve this problem temporarily. Compared with the traditional methods, the advantages of the two-way plastic geogrid are more prominent.

       首先，双向塑料土工格栅由各种化学纤维制成，不易腐烂LFg。它已经使用了很多年，强度几乎没有变化。其次，在复合单向土工格栅公路的施工过程中，不需要特殊技术，施工进度快，车辆可以在短时间内行驶。第三，双向塑料土工格栅修筑的公路稳定性好，不易扭曲。所需的路基砂砾料可以减薄，也可以减少地基的压实工作。第四，双向塑料土工格栅可以在几乎各种形式下施工。此外，它还可以改善道路排水效果，减少砾石的种类，减少道路坟墓的冻结体积，提高道路的承载能力等本.地.生.活.网。

First, the two-way plastic geogrid is made of various chemical fibers, which is not perishable. It has been in use for many years, with little change in intensity. Secondly, in the construction process of the composite one-way geogrid highway, no special technology is needed, the construction progress is fast, and the vehicles can run in a short time. Third, the highway built by two-way plastic geogrid has good stability and is not easy to twist. The required gravel material of subgrade can be thinned and the compaction of subgrade can be reduced. Fourth, bi-directional plastic geogrid can be constructed in almost all forms. In addition, it can also improve the drainage effect of the road, reduce the types of gravel, reduce the frozen volume of the road tomb, and improve the bearing capacity of the road.

       双向塑料土工格栅对地基不良的道路具有良好的稳定效果。总之，双向塑料土工格栅的使用可以增加道路的稳定性，延长其使用寿命，节约材料和施工成本，以及长期的道路养护和维修成本，大大超过双向塑料土工格栅的成本，是一种快速、良好、经济的道路施工方法。因此，近年来，上越来越多的高速公路采用双向塑料土工格栅进行施工。

The bidirectional plastic geogrid has good stability effect on the road with poor foundation. In short, the use of two-way plastic geogrid can increase the stability of the road, extend its service life, save material and construction costs, as well as long-term road maintenance and repair costs, which greatly exceeds the cost of two-way plastic geogrid. It is a fast, good and economic road construction method. Therefore, in recent years, more and more expressways use two-way plastic geogrid for construction.

       双向塑料土工格栅坝体变形结果及动力塑性分析要点：大坝变形结果与对策本文论述了动力塑性对策分析的要点，并对上述双向塑料土工格栅加固高土石坝与非抗震措施(ⅰ.e.无土工格栅)在相同条件下.。有无土工格栅地震后坝顶 位移变化曲线。无论是否加土工格栅，上游坝顶1/5的 位移曲线都有随老规程沿高程变化的趋势.加土工格栅前后坝体水平位移变化规律不同.当坝体不加固时，顶部地震反应强烈，水平位移突出.土工格栅水平对称铺设后，坝坡水平位移的增长将受到限制，水平位移有凹陷的趋势.本.地.生.活.网。

Deformation results and key points of dynamic plasticity analysis of two-way plastic geogrid dam body: dam deformation results and Countermeasures This paper discusses the key points of dynamic plasticity countermeasure analysis, and the above two-way plastic geogrid reinforcement of high earth rock dam and non seismic measures (i.e. no geogrid) under the same conditions. The displacement curve of dam crest after earthquake with or without geogrid. No matter whether geogrid is added or not, the displacement curve of 1 / 5 of upstream dam crest will change along the elevation according to the old regulations. The horizontal displacement of dam body before and after geogrid is added is different. When the dam body is not reinforced, the top seismic response is strong, and the horizontal displacement is prominent. After the geogrid is laid horizontally and symmetrically, the increase of horizontal displacement of dam slope will be limited, and the horizontal displacement will have the tendency of depression.

      添加双向塑料土工格栅前后坝体竖向位移变化规律一致，加固后的竖向位移明显较小，分别为0.56m和0.2500万，下降55%.3%。总之，坝体上部土工格栅加筋可有效地增强坝顶地区堆石体的稳定性，明显降低坝体的 位移.。地震后土工格栅的内力分布。可以看出，较小的内力值表明格栅没有发挥全部作用.格栅较小内力值的范围自上而下逐渐扩大，延伸至坝坡.说明只有下层土工格栅的一小部分起到加固土体的作用，可以适当缩短下层土工格栅的长度.中间网格的作用更好，内力几乎沿网格全长分布.格栅的内力分布通常从坝坡向加固端逐渐减小.大轴向力出现在中层和下层。

The vertical displacement of the dam body before and after adding the two-way plastic geogrid is the same. The vertical displacement after reinforcement is obviously smaller, which is 0.56m and 0.25m respectively, down 55% 3%. In a word, geogrid reinforcement on the upper part of the dam can effectively enhance the stability of rockfill in the dam crest area and significantly reduce the displacement of the dam. Internal force distribution of geogrid after earthquake. It can be seen that the smaller internal force value of the grid does not play a full role. The scope of the smaller internal force value of the grid gradually expands from top to bottom, extending to the dam slope. It shows that only a small part of the lower geogrid plays a role in strengthening the soil mass, which can appropriately shorten the length of the lower geogrid. The middle grid has a better role, and the internal force is almost distributed along the whole length of the grid. The internal force distribution of the grid Generally, from the dam slope to the reinforcement end, the large axial force appears in the middle and lower layers.

       对有无土工格栅坝进行了大变形分析。可见，不加土工格栅时，坝顶和坝坡上部的剪切应变较大.坝顶产生大剪切应变，达到4.4%；可见，用土工格栅加固坝体上部时，坝体的剪切应变水平明显降低，高塑性剪切应变区可从坝顶附近的坝体沿坝坡向浅层转移.范围大大缩小，大剪切应变位置下移，尺寸减小到1.8%欢迎www.bdsh5.com。上述结论之所以紧张，是因为在不加土工格栅的情况下，随着土体的晃动，坝顶会发生初始破坏，坝坡上部也容易产生滑坡.。

Large deformation analysis of geogrid dam with or without geogrid is carried out. It can be seen that, without geogrid, the shear strain of the dam crest and the upper part of the dam slope is large, and the large shear strain of the dam crest is up to 4.4%; it can be seen that when geogrid is used to reinforce the upper part of the dam body, the shear strain level of the dam body is significantly reduced, and the high plastic shear strain area can be transferred from the dam body near the dam crest to the shallow layer along the dam slope. The scope is greatly reduced, the location of the large shear strain is moved down, and the size is reduced To 1.8%. The reason why the above conclusions are tense is that without geogrid, with the shaking of soil, the dam crest will be damaged initially, and the upper part of the dam slope is prone to landslide.

      相信大家看完以上内容以后，应该也对土工格栅可以增加不良地基的稳定性有所了解了，希望会对大家有所帮助吧。

I believe that after reading the above content, you should also understand that geogrid can increase the stability of bad foundation. I hope it will help you.

      本文词标签：双向塑料土工格栅

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