塑料土工格栅如何进行铺设和固定

　　塑料土工格栅铺设可由拖拉机或汽车改装的专用设备进行铺设，也可人工铺设。塑料土工格栅每卷产品的纸筒两端各标有橙色和蓝色标记，在开始铺设之前，应选择胶面向下，确定上述标记颜色各在某一端，以方便施工而不致将胶面铺错。格栅铺设时，应保持其平整、拉紧，不得起皱，使格栅具备有效的张力，铺完之后再用干净的钢轮压路机碾压一遍。

The laying of plastic geogrid can be carried out by special equipment refitted by tractor or automobile, or manually. Both ends of the paper cylinder of each roll of plastic geogrid products are marked with orange and blue marks. Before laying, the rubber surface shall be selected downward, and the color of the above marks shall be determined at one end, so as to facilitate construction and avoid wrong laying of the rubber surface. When the grid is laid, it shall be kept flat and tight without wrinkling, so that the grid has an effective tension. After laying, it shall be rolled once with a clean steel wheel roller.

　　采用固定钢钉法铺设塑料土工格栅时，先将一端固定铁皮和钢钉固定在已洒布粘层沥青的下层结构上，钢钉可用锤击或射钉射入。再将格栅纵向拉紧并分段固定，每段长度为2~5m.也可按缩缝间距分段，钢钉位置设于接缝处。要求格栅拉紧时玻纤纵横向均处于挺直张紧状态。

When the plastic geogrid is laid by fixed steel nails, the fixed iron sheet and steel nails at one end shall be fixed on the substructure sprayed with tack coat asphalt, and the steel nails can be hammered or shot in. Then the grating shall be tensioned longitudinally and fixed in sections, each section of which is 2-5M long. It can also be divided into sections according to the spacing of contraction joints, and the position of steel nails shall be set at the joints. It is required that the glass fiber shall be in a straight and tensioned state when the grid is tensioned.

　　塑料土工格栅搭接为纵向搭接，搭接宽度不小于20cm,横向搭接宽度不小于15cm,纵向搭接应根据沥青摊铺方向将前一幅置于后一幅之上。固定时不能将钢钉钉于玻纤上，不能用锤子直接敲击玻纤，固定后如发现钢钉断裂或铁皮松动，则需重新固定。塑料土工格栅铺设固定完毕后，须用胶辊压路机适度碾压稳定，使格栅与原路表面粘结牢固。

The plastic geogrid shall be overlapped longitudinally, with the lap width not less than 20cm and the transverse lap width not less than 15cm. The former one shall be placed above the latter one according to the asphalt paving direction. When fixing, it is not allowed to nail the steel nail on the glass fiber or directly knock the glass fiber with a hammer. If the steel nail is broken or the iron sheet is loose after fixing, it needs to be fixed again. After the plastic geogrid is laid and fixed, the rubber roller shall be used to properly roll and stabilize the geogrid to make it firmly bonded with the original road surface.

　　在实际施工中，有些施工单位采用洒布粘层油后直接摊铺塑料土工格栅，压路机紧随后碾压，其效果较好，塑料土工格栅也不易起波浪。

In the actual construction, some construction units directly pave the plastic geogrid after spreading the adhesive layer oil, and the roller is closely behind to roll, which has a good effect, and the plastic geogrid is not easy to wave.

　　塑料土工格栅施工注意事项：

Precautions for construction of plastic geogrid:

　　严格控制运送混合料的车辆出入，在格栅层上禁止车辆急转向、急刹车和倾泻混合料脚料，以防止对塑料土工格栅的损坏。塑料土工格栅背胶易溶于水，雨天或路面潮湿时不得施工。

Strictly control the entry and exit of the vehicles transporting the mixture, and forbid the vehicles to swerve, brake and pour the mixture feet on the grid layer, so as to prevent the damage to the plastic geogrid. Plastic geogrid back glue is easy to dissolve in water, and construction is not allowed in rainy days or when the road surface is wet.

　　塑料土工格栅为玻璃纤维制造，对人体皮肤易产生刺激作用，施工人员须戴防护手套。当使用的胶轮压路机需注水增加重量时，其注水量不能太满，以防溢流到塑料土工格栅上，造成其背腹失去粘性。

Plastic geogrid is made of glass fiber, which is easy to cause irritation to human skin. Construction personnel must wear protective gloves. When the weight of the used rubber tyred roller needs to be increased by water injection, the water injection shall not be too full, so as to prevent overflow to the plastic geogrid, resulting in loss of viscosity of its back abdomen.

　　塑料土工格栅铺设过程中，若发现原路面有较小的坑塘没有予先填平，可在铺好的格栅上将对应坑塘的部分剪去，以便在铺上层沥青混合料时能完全填平坑塘。格栅铺设时，要求路面温度在5°C~60°C之间。

In the process of laying the plastic geogrid, if it is found that there is a small pond on the original road surface that has not been filled in advance, the corresponding part of the pond can be cut off on the paved grating, so that the pond can be completely filled when the upper asphalt mixture is laid. When the grid is laid, the road surface temperature is required to be between 5 ° C and 60 ° C.

　　塑料土工格栅的使用效果与铺设路面的处理情况密切相关，在铺设前需将路面上可能影响格栅与底层结合强度的物质如油脂、油漆、封层料、水渍、污物等彻底清除干净，使铺设表面清洁干燥。塑料土工格栅上感压式背腹属水溶性物质，如路面有水迹时，应待路面干燥后再进行铺设。铺设格栅之前需洒粘层油，粘层油如使用乳化沥青，需在完全破乳干燥后铺设格栅。

The application effect of the plastic geogrid is closely related to the treatment of the pavement. Before the pavement is laid, the substances that may affect the bonding strength of the grid and the bottom layer, such as grease, paint, sealing material, water stain, dirt, etc., must be completely removed to make the pavement surface clean and dry. The pressure sensitive back belly on the plastic geogrid is a water-soluble substance. If there is water trace on the road surface, it shall be laid after the road surface is dry. The grid shall be sprayed with tack coat oil before laying. If emulsified asphalt is used for tack coat oil, the grid shall be laid after complete demulsification and drying.

　  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进行铺设和固定了吧，希望会对大家有所帮助吧。

I believe that after reading the above content, you should also know how to lay and fix the plastic geogrid. I hope it will help you.

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