塑料排水板施工工艺流程图

                                                          

                                                         

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                           

                                                       

                                                           

                                                           

整平原地面

摊铺下层砂垫层

机具就位

塑料排水板

插入套管管靴

拔出套管

套管沉入

割断塑料排水板

机具移位

摊铺上层砂垫层