造成生产成本的增加的同时延长的施工周期，所有原材料均以散装形式运到现场，现场的制作对周边的生态环境也会照成破坏和污染，现场浇注的方式对人工振捣要求高，振捣不实管廊后期出现微裂纹的可能性，留下漏水隐患。
As the production cost increases, the construction period is prolonged. All raw materials are transported to the site in bulk. The production on site will also cause damage and pollution to the surrounding ecological environment. The on-site pouring method has high requirements for manual vibration. The vibration is not solid. The possibility of micro cracks in the pipe Gallery at the later stage will leave hidden water leakage.
预制管廊由多节预制管节在现场拼接而成，多采用一次性的浇筑模具，但上述浇筑模需要重复搭建，费时费料，并且浇筑模具的脱模作业步骤十分繁琐，不利于量产浇筑。
The prefabricated pipe gallery is composed of several prefabricated pipe sections assembled on site, and the one-time pouring mold is often used. However, the above-mentioned pouring mold needs to be built repeatedly, which is time-consuming and material consuming. Moreover, the demoulding operation steps of the pouring mold are very complicated, which is not conducive to mass production pouring.