城墙具有御功能与防洪功能的同时城墙还具有观景功能：在城墙上建造的八镜台

While the city wall has imperial and flood control functions, the city wall also has a viewing function: the Eight Mirror Terrace Yugutai built on the city wall has continued to this day as an urban viewing spot. <br>The lakes in the city have multiple functions such as water storage, maintenance of ecological diversity, and urban landscape. The lakes in the city are connected to each other by the Fushou ditch. When the water level inside and outside the city rises at the same time caused by heavy rain, the water windows are closed, no drainage is possible, and the water level inside the city rises, the pond can save the accumulated water in the city. According to the record of "Ganzhou Chengxiang Ancient Street", Ganzhou 84 reservoirs are scattered near and connected to Fushougou. <br>The structure of Fushou ditch in Ganzhou is divided into two parts: open ditch and culvert. The open ditch collects and discharges rainwater, and the culvert collects and discharges gray water. The culvert is an arched structure that is firm and stable. Increase the flow rate to discharge the silt sediment. Material: The blue bricks on the bottom of the ditch are resistant to acid and alkali, which is good for discharging.

While the city walls have the function of royal and flood control, the city walls also have the function of viewing: the eight-mirror platform built on the city walls, Yu Lone Terrace, has continued as a city viewing spot. <br>The lakes in the city have a variety of functions, such as water storage, ecological diversity, and urban landscape. The city's lakes are connected by Fushougou, and ponds can save water in the city when the water level inside and outside the city rises at the same time due to heavy rains, water windows are closed, water cannot be drained, and the water level in the city rises. According to the "Old Streets of Luzhou City", the Luzhou 84 pond is scattered near Fushougou and connected to Fushougou.<br> Fushou ditch structure in Luzhou is divided into two parts, Minggou collection and drainage of rainwater, dark ditch collection discharge of gray water, dark canal for arch structure solid and stable, and the use of terrain and slope designed into a wide and narrow tube structure, can be easily silted in the location of increased flow rate discharge silt silt, material: trench bottom stone ditch green brick acid-resistant and alkali-resistant to drain

The city wall not only has the function of defense and flood control, but also has the function of sightseeing: the bajingtai yugutai built on the city wall has been a city scenic spot until now.<br>The lakes in the city have many functions, such as water storage, maintaining ecological diversity, and urban landscape. The lakes in the city are connected by Fushou ditch. When the water level inside and outside the city rises due to rainstorm, the water window is closed, and the water level in the city rises, the pond can store the water in the city. According to the records of Ganzhou Chengxiang ancient street, Ganzhou 84 ponds are scattered near and connected with fushougou.<br>The structure of Fushou ditch in Ganzhou is divided into open ditch and underdrain. The open ditch collects and discharges rainwater, while the underdrain collects and discharges grey water. The underdrain is arch shaped, firm and stable, and is designed into a tubular structure with different width by using topography and slope, which can increase the flow velocity at the position easy to deposit and discharge silted sediment. Material: Stone bars at the bottom of the ditch, and acid and alkali resistant black bricks at the ditch body, which is conducive to discharge<br>