塑料土工格栅如何应用于环境治理

        塑料士工格栅呈网状结构，，孔与孔之间由肋条和节点构成,肋条处是经拉伸取向的高分子材料，具有较高的拉伸强度和较低的伸长率,节点处厚度较大,对土料颗粒具有侧向阻止作用。由于其栅肋较粗、强度高,不易发生网眼断裂,从而能大大提高抗尖石刺破能力;网孔稳定性好，对粗粒土有较强嵌锁作用,z了土工格栅与填料的剪切阻力。

The plastic geogrid has a network structure, and the holes are composed of ribs and nodes. The ribs are polymer materials with tensile orientation, which have high tensile strength and low elongation. The thickness of the nodes is large, which has a lateral blocking effect on the soil particles. Because of its thick grid rib and high strength, it is not easy to break the mesh, so it can greatly improve the resistance to sharp stone penetration; the mesh stability is good, it has strong interlocking effect on the coarse-grained soil, and increases the shear resistance of the geogrid and the filler.

       塑料土工格栅具有较大的取向度和结晶度，因此拉伸后的拉伸强度比未拉伸前可提高5-10倍.而伸长率只为原米的10%~15%。塑料土工格栅的加固在于格栅与土基的相互作用，可归纳为3种情况:

The plastic geogrid has a large degree of orientation and crystallinity, so the tensile strength after stretching can be increased by 5-10 times than before, and the elongation is only 10% - 15% of the original meter. The reinforcement of plastic geogrid lies in the interaction between Geogrid and soil foundation, which can be summarized into three cases:

       1.格栅表面与土粒的摩擦作用;

       1. Friction between the grid surface and soil particles;

       2.土粒对格栅筋肋的被动阻抗作用;

       2. The passive impedance effect of soil particles on grid ribs;

       3.格棚孔眼对.上基的“锁定”作用。这3种作用均能充分约束土粒的侧向位移,从而大大增加上体的稳定性，其与格栅隔离作用同时存在可使格栅的加固效果明显提高。在土基中铺设塑料土工格栅形成加筋后，塑料土丁格栅对土其的加固作用主要表现在提高土基承载力、限制土体的侧向位移扩散应力3个方面。

       3. The "locking" effect of the trellis eyelet on the upper base. All of these three actions can fully constrain the lateral displacement of soil particles, thus greatly increasing the stability of the upper body. The isolation of the three actions from the grid can significantly improve the reinforcement effect of the grid. After the plastic geogrid is laid in the soil foundation to form reinforcement, the reinforcement effect of the Plastic Geogrid on the soil mainly includes three aspects: improving the bearing capacity of the soil foundation and limiting the lateral displacement and diffusion stress of the soil.

       路段之间存在不同的沉降量是常见的现象桥台跳车是zui典型的工程实例。岩程中处理这种问题有多种方法,而用土工合成材料加筋被认为是较为成功的一-项新技术。使用塑料土工格棚加强与桥台相邻路面的路基可以大幅度提高路基刚度，显著减小路基的变形,实现不同沉降量基础间的平缓过渡,减少跳车现象,在高速铁路建设中尤为重要。在轨道路基与路桥桥台连接处设过渡段并用塑料土格栅处理路基.使该段轨道刚度逐渐变化保证高速列车的AQ，平稳与舒适

It is a common phenomenon that there are different settlements between the road sections. The most typical engineering example is the abutment jump. There are many ways to deal with this problem in rock engineering, and geosynthetics reinforcement is considered as a relatively successful new technology. The use of plastic geogrid to strengthen the subgrade adjacent to the abutment can greatly improve the subgrade stiffness, significantly reduce the deformation of the subgrade, realize the smooth transition between the foundations with different settlement and reduce the phenomenon of vehicle jumping, which is particularly important in the construction of high-speed railway. A transition section is set up at the junction of the track subgrade and the road bridge abutment, and the subgrade is treated with plastic earth grid to ensure the safety, stability and comfort of the high-speed train

       塑料土工格栅对道路基层的侧限作用能有效地将载荷分布到更宽的底基层上,因此基层的厚度可减少50%，使用寿命可延长3倍。塑，料土工格棚还可提高基层承受往复载荷的能力,降低往复载荷对基层和底层所产生的泵吸作用。加固公路路面的塑料土工格栅一般宜铺在面层或基层的下部。

Plastic geogrid can effectively distribute the load to the wider subbase, so the thickness of the base can be reduced by 50%, and the service life can be extended by three times. The plastic and material geogrid can also improve the ability of the base to bear the reciprocating load and reduce the pumping effect of the reciprocating load on the base and the bottom. Generally, the plastic geogrid used to strengthen the road surface should be laid under the surface course or base course.

       塑料土工格栅用于治理水土流失可直接覆盖于新开挖暴露的土坡或风化严重的软质岩坡面上,其作用是固定部分松动上块,减少地表水冲刷，从而达到治理水上流失的目的;采用格栅加筋处理水田湿地测，可提高路基的稳定性，节约投资、縮短工期;土工格棚还能用于加筋热层处理暗渠软基的施工程序、施工工艺和质量控制等过程;尤其是回填上坡的防护,保证道路、河道等不因边坡土的下滑而阻塞。在用格栅防护的边坡上还可种植草木，草木根系利挤栅生相交织进步增强防护作用，也绿化了环境。

The plastic geogrid can be directly covered on the newly excavated exposed soil slope or the severely weathered soft rock slope to control the water loss. Its function is to fix the loose upper part and reduce the surface water erosion, so as to achieve the purpose of controlling the water loss. The use of the grid reinforcement to treat the water field wetland can improve the stability of the subgrade, save investment and shorten the construction period; The geogrid can also be used for the construction procedure, construction technology and quality control of the reinforced heat layer for the treatment of the soft foundation of the hidden channel; especially for the protection of the backfill uphill, to ensure that the road, river course and so on are not blocked by the slide of the slope soil. Grass and trees can also be planted on the side slope protected by grid, and the grass root system can improve the protection effect and green the environment.

       相信大家看完以上内容以后，应该也了解塑料土工格栅如何应用于环境治理了吧，希望会对大家有所帮助吧。

I believe that after reading the above content, you should also understand how plastic geogrid is applied to environmental governance, and I hope it will help you.

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