一、引言现在土工合成材料在许多土木工程建筑中已得到广泛应用,在控制有害固体、液体废物废料和市政工程的填地方面,其应用尤为广泛。以往堆放固体废物(垃圾)的市政填地存在陡坡封盖问题,在那些空间受到限制,因而将垃圾堆得很高的土料封盖,应引起人们的重视。常用的封闭方法难于应用,而可资利用的 I. INTRODUCTION Nowadays, geosynthetics have been widely used in many civil engineering buildings. They are widely used in controlling the filling of hazardous solid, liquid waste and municipal engineering. In the past, there was the problem of steep slope sealing in the municipal landfills where solid wastes (rubbish) were piled up. Therefore, people should pay more attention to the caving of soil so that the rubbish pile is very high. Commonly used closed method is difficult to apply, but available