Abstract: Disclosed are a method and a device for identifying full-section excavation parameters of large-section tunnel with broken surrounding rock, which is capable of solving the problem of inaccurate arrangement of blasting hole points in tunnel excavation engineering, including following steps: establishing a three-dimensional finite element model based on a blasting section design of a tunnel; performing a simulation with the three-dimensional finite element model based on blasting design parameters to obtain blasting quality parameters; selecting a group closest to a preset quality parameter from multiple groups of the blasting design parameters as target blasting design parameters, wherein the preset quality parameter is an acceptance grade standard of the tunnel; obtaining first thermal imaging information of a first hot spot of a surface to be blasted; calibrating actual hole spacing parameters based on the first thermal imaging information and the target blasting design parameters.

Abstract: Provided is a memory. The memory includes at least one memory array and at least one control circuit, wherein the memory array comprises a plurality of memory cells arranged in an array as well as read wordlines and read bitlines for read operations, wherein each of the memory cells comprises a first transistor and a second transistor. The control circuit is configured to transmit, during a pre-processing stage, a first voltage to the read wordline and the read bitline; transmit, during a pre-charging stage, a second voltage to the read bitline; and transmit, during a read-sensing stage, a third voltage to the read wordline.

Abstract: The present disclosure discloses method for constructing a locomotive collaborative transportation scheduling system based on cyber-physical fusion, which provides a solution for multi-processor coordinated control of locomotive scheduling. The method includes the following steps: step 1, planning the actual on-site location of the device; step 2: constructing a distributed cyber-physical system collaborative architecture; step 3: describing the information transmission relationship between physical devices in a matrix manner to construct an information collaboration computing model; step 4: analyzing and selecting the matching controller type according to the device function implementation program; step 5: writing the controller function scheduling program to complete the construction of the locomotive collaborative transportation scheduling cyber-physical system, and realizing the locomotive automatic scheduling through this system.

Abstract: The present disclosure provides a comprehensive utilization method and test equipment for surface water, a goaf and geothermal energy in a coal mining subsidence area. The method comprises the following steps: determining a geothermal water collection area, arranging heat energy exchange equipment in a main roadway, and arranging a geothermal water extraction system, wherein the geothermal water extraction system comprises geothermal wells, extraction pipelines and tail water reinjection pipelines, the extraction pipelines are connected with the heat energy exchange equipment, and the tail water reinjection pipelines are connected with a water outlet of the heat energy exchange equipment; arranging a water channel on the surface, and arranging a drainage system on a subsidence trough to guide surface water to flow underground; and controlling directional and ordered flow of surface water through the coal mining subsidence area formed by ground mining to achieve sustainable mining of underground water.

Abstract: The present disclosure provides a comprehensive utilization method and test equipment for surface water, a goaf and geothermal energy in a coal mining subsidence area. The method comprises the following steps: determining a geothermal water collection area, arranging heat energy exchange equipment in a main roadway, and arranging a geothermal water extraction system, wherein the geothermal water extraction system comprises geothermal wells, extraction pipelines and tail water reinjection pipelines, the extraction pipelines are connected with the heat energy exchange equipment, and the tail water reinjection pipelines are connected with a water outlet of the heat energy exchange equipment; arranging a water channel on the surface, and arranging a drainage system on a subsidence trough to guide surface water to flow underground; and controlling directional and ordered flow of surface water through the coal mining subsidence area formed by ground mining to achieve sustainable mining of underground water.