4 results about "Ravine" patented technology

The invention provides a pier anti-collision device for preventing rolling stone collision in mountainous valley, and relates to the technical field of bridge engineering.The anti-collision device comprises a protection mechanism, the protection mechanism comprises three sets of eccentric rings, and the three sets of eccentric rings are sequentially arranged on the surface of a pier from top to bottom in a sleeving mode and rotationally connected with the pier; an inner ring sleeves the outer side wall of each group of eccentric rings, crankshafts are rotationally connected in the connecting holes, three groups of cranks are arranged between the crankshafts in each group, an included angle of 120 degrees is formed between connecting lines of center shafts of the three cranks and center shafts of the crankshafts on a horizontal projection plane, and the inner rings and the cranks are arranged in a staggered manner; the device further comprises an adjusting and reinforcing mechanism, the adjusting and reinforcing mechanism comprises fixing rings, the two fixing rings are located at the upper end and the lower end of the pier correspondingly, the outer side walls of the fixing rings are sleeved with connecting rings, and the device is designed through a fracturable graded protection mechanism, so that graded response and differentiated protection strategies aiming at rolling stones of different scales are achieved.

This invention belongs to the field of water conservancy and hydropower construction technology, specifically providing a construction method for excavating a single-sided bridge across a steep folded rock face road cut. The method includes the following steps: measuring and setting out according to design drawings; fabricating steel beams and installing them at the target location in the ditch; using machinery to excavate the slope along the designed route; excavating the slope overburden and upper strongly weathered rock; excavating the lower weakly weathered rock of the pre-splitted slope, using stepped blasting for rock excavation in stages; and completing the excavation of the single-sided bridge across a steep folded rock face road cut after inspection and acceptance. This invention solves the problems of large excavation volume, difficulty for machinery to cross gullies, collapse of upper deposits, and significant construction hazards associated with existing mechanical + blasting methods for excavating steep folded rock faces. This invention features minimal over-excavation, shorter construction period, guaranteed quality, safety and reliability, and reduced ecological impact.

The application provides a collapsible loess area gully high fill foundation deformation monitoring method and system, relates to the technical field of foundation deformation monitoring, and the method comprises the following steps: acquiring foundation parameter data; acquiring multi-source monitoring data at multiple monitoring moments; acquiring foundation settlement rules according to the foundation parameter data; acquiring fusion settlement prediction values according to the multi-source monitoring data and the foundation settlement rules; acquiring a settlement health index according to the foundation parameter data, the multi-source monitoring data and the fusion settlement prediction values; and performing foundation deformation monitoring according to the settlement health index. According to the application, the accuracy of collapsible loess area gully high fill foundation deformation monitoring is improved.

The invention discloses a complex geology high and steep slope drainage system and a construction method thereof.The system comprises a waterlogging pool arranged at the top of a slope, a stone retaining wall arranged in the middle of the slope, a high-pressure concrete layer poured on the upper slope and upper anchor rods riveted and fixed to the upper slope, and a drainage channel arranged on the lower slope and lower anchor rods riveted and fixed to the lower slope; the drainage channel water inlet is connected with the waterlogging pool through the lower inspection well, the slope drainage pipe and the upper inspection well, and the drainage channel water outlet is connected with the reservoir through the drainage channel. Through the multi-node and multi-channel design, the rainwater confluence and conveying efficiency is remarkably improved; on the aspect of structural safety, slope slippage and scouring damage are effectively prevented through multiple anchoring, protection and an anti-filtration drainage system; in resource utilization, the drainage tail end is communicated with a water storage facility, it is guaranteed that rainwater can be used for agricultural irrigation, and the water resource utilization rate is increased; in the aspect of adaptability, the drainage system can stably run in complex terrains such as loess plateau, gullies and abrupt slopes, and the safety and durability of the drainage system are remarkably improved.