Abstract: A tunnel dynamic blasting device based on geological body intelligent perception, a system and a method are provided. A blasting design instrument body of the tunnel dynamic blasting device is disposed with a 3D laser scanning device, a digital camera device, a borehole locating device, an electronic screen, a built-in computer and a wireless communication device. The 3D laser scanning device, the digital camera device, the borehole locating device, the electronic screen and the wireless communication device are connected to the built-in computer. A housing of the blasting design instrument body is disposed with a battery compartment having a lithium battery secured therein. A range finder is secured above the housing. Problems of non-systematicness and lag of tunnel blasting design and coarseness of borehole locating nowadays are solved, thus the tunnel excavation efficiency and borehole arrangement accuracy in the tunnel cross-section are improved, thereby improving the tunnel blasting quality.

Abstract: The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.

Abstract: The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.