The invention relates to the technical field of intelligent construction and maintenance, and relates to a non-contact visual monitoring system and method for a flexible protective structure against rockfall disasters; it comprises a hardware system and a data analysis system, and the hardware system uses a multipoint distributed high-resolution high-speed camera to capture dynamic image sequences of a protective structure under the rockfall impact in a non-contact mode; the data analysis system comprises an impact deformation state full-field tracking module and a multipoint impact large deformation extraction module, and the impact deformation state full-field tracking module captures spatio-temporal changes of impact deformation of the protective system by adopting a full-field optical flow method, constructs a two-dimensional velocity amplitude distribution diagram and performs full-field spatio-temporal tracking of large deformation of the system.

A system for and method of stabilizing slopes and embankments using one or more soil load transfer elements are disclosed. The present subject matter provides for an efficient method and apparatus for stabilizing shallow landslides and slope instabilities for failing and near-failing soil masses that are underlain by soil materials. The system may include a plurality of load transfer plates affixed to a pile or load transfer section in varying configurations. In one embodiment, one or more upper load transfer plates are preferably used to capture the downslope-moving soil mass and transfer the applied loads to the intermediary pile section. In another embodiment, a plurality of upper load transfer plates can be used to transfer applied loads to a lower pile section.

The present disclosure provides a test system and method for an anchoring performance of a full-size rock mass anchor bolt under combined load and relates to the technical field of detection test equipment. The system includes a primary frame, a co-directional pull-twist loading mechanism and a vertical shear loading mechanism. The primary frame includes a dual-parallel horizontal reaction frame and a vertical reaction frame. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism are arranged in synergy with the primary frame. The co-directional pull-twist loading mechanism performs synchronous pull and twist loading for the anchored rock mass and the vertical shear loading mechanism applies a static load or simulates a dynamic load disturbance. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism perform separate loading. By using the test system, anchor bolt pull test, pull-twist test of the anchor bolt body, pull-twist-shear test of the anchor bolt body and test of the anchor bolt and the anchored rock mass are performed and also a coupled load of pull, shear and twist is performed on a same anchored fracture surface to effectively test the comprehensive mechanical performance of the anchor bolt member in the rock mass under combined stress.

A test system for an anchoring performance of a full-size rock mass anchor bolt under combined load and relates to the technical field of detection test equipment includes a primary frame, a co-directional pull-twist loading mechanism and a vertical shear loading mechanism. The primary frame includes a dual-parallel horizontal reaction frame and a vertical reaction frame. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism are arranged in synergy with the primary frame. The co-directional pull-twist loading mechanism performs synchronous pull and twist loading for the anchored rock mass and the vertical shear loading mechanism applies a static load or simulates a dynamic load disturbance. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism perform separate loading.

The present disclosure provides a slope reinforcing and protecting device for hydraulic engineering. The device includes a connecting base body, where an upper end of the connecting base body is fixedly connected to a protection assembly, and a fastening assembly is arranged in the protection assembly for supporting. A protection net is connected around an outer side of the connecting base body.

A method and a system for identifying a glacial lake outburst debris flow (GLODF) are provided. The method is obtained based on considering induced influences of slopes of channels and particle sizes of source particles on the GLODF. The method not only compensates for deficiencies in identifying the GLODF, but also realizes determination of the GLODF, which provides data basis for disaster prevention and control layout such as monitoring and early warning on a glacial lake and assists preventing and managing disasters caused by the GLODF. Meanwhile, multiple parameters used in the method are easy and convenient to obtain, and the parameters can be directly used on site, which saves engineering cost, improves working efficiency, and has high practical and promotional value in environmental protection and disaster prevention and mitigation.

Provided is a high geostress fault simulator using non-soil rock materials media, including a first movable unit, a second movable unit, and a stress simulation unit, where the first movable unit includes a first support platform and a second support platform, the second movable unit includes a first movable box, a second movable box, and an accommodation space, and the stress simulation unit includes support frames and stress simulation assemblies in which a to-be-tested model is disposed. The present invention simulates a stress level of a soil mass in a deep formation through the stress simulation unit, thereby simulating triaxial fault effects occurring in the deep formation through the simulator, and further studying an impact of triaxial earthquake fault effects on civil engineering structures under a stress of the soil mass in the deep formation when an earthquake occurs.

Provided are a similar material for a rock slope model test under water-rock interaction, and a preparation method and use thereof. The similar material is prepared from raw materials including the following components: an iron powder, a quartz sand, a barite powder, a gypsum, glycerin, water, a gypsum retarding agent, and a dispersible polymer powder. Further, the method for preparing the similar material for a rock slope model test under water-rock interaction is also provided.

A combination ramp system includes a first ramp, a second ramp, and a first connection assembly. The first ramp has a first inclined surface. The second ramp has a second inclined surface. The first connection assembly includes a first connecting member and a second connecting member. The first connecting member is provided with a first connecting portion and a first butting portion. The second connecting member is provided with a second connecting portion and a second butting portion connected to the first butting portion. The first connecting member has a first top surface adjacent to the first inclined surface. The second connecting member in the vertical direction has a second top surface adjacent to the second inclined surface.

Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.