Seismic responses of utility tunnel-soil system were studied via shaking table model tests with considerations of two kinds of double box utility tunnels: with and without joint connections. These two testing utility tunnel models were made of galvanized iron wire and micro-concrete. and the ground was simulated by the dry standard sand through layered tamping treatment. The utility t... https://trendingcustomes.shop/product-category/rectangle-acrylic-block-led-night-light/