In a prefabricated composite pipe gallery with socket joints. the repeated loading and unloading effect of shield construction on the overlying soil and the existing pipe gallery may cause considerable deformations to the pipe gallery at the joint while ensuring its own bearing capacity. The shield tunnelling underneath the existing pipe gallery project of the Fuzhou Metro was used as... https://www.poolsproductscanadas.shop/product-category/jandy-lrz-parts/