The BOLV® geocell is honeycombed three-dimensional grid structure which is welded by high-strength HDPE sheet. The BOLV® geocell is easy to stretch. It can be folded up when transport and opened to fill the earth or concrete when use it. It will constitute a strong lateral and large stiffness of the structure when use it. In the geotechnical engineering, soil, sand, stone, concrete and other fill together constitute a different cohesion, different reinforcement strength, different depth of the cushion. The cushion can be placed in the required position accordance with the requirements of the project for Reinforcement of roads, railways and soft soil foundation, slope protection, green structure, the construction of retaining walls and so on. The most important feature is can solve and complete a variety of difficult problems which can’t be dealed with use conventional method in geotechnical engineering,such as bridge jumping, soft base subsidence, fouling, landslides and desert subgrade.