8 results about "CRTS" patented technology

This invention discloses a track slab fine-tuning device and method for CRTSⅢ type slab track. The device includes an upper frame, a lower frame, an attitude adjustment mechanism, a travel and steering device, a fine-tuning mechanism, and four sets of turning mechanism components. The attitude adjustment mechanism drives the lower frame to swing. The fine-tuning mechanism includes a forward and backward moving mechanism, an L-shaped mounting plate, a vertical moving mechanism, a vertical fastening mechanism, a turning plate, a swinging mechanism, a lateral moving mechanism, and a lateral fastening mechanism. The method includes the following steps: 1. Hoisting and moving the fine-tuning device; 2. Adjusting the attitude of the lower frame; 3. Adjusting the track slab by the fine-tuning mechanism acting on the fine-tuning claws; 4. Adjusting the pressure bar. This invention achieves the lifting and lateral movement adjustment of the track slab through the operation of the fine-tuning claws by the fine-tuning mechanism, enabling rapid adjustment of the track slab's elevation and centerline. Furthermore, the swinging nature of the fine-tuning mechanism allows for centering adjustments under different ultra-high working conditions.

The invention discloses a CRTS III type slab ballastless track construction quality management method and system based on deep learning and BIM, and the method comprises the steps: recognizing a construction key sub-process, building a CRTS III type slab ballastless track construction quality evaluation system, and obtaining corresponding index construction data; based on a CRTS III type slab ballastless track construction quality evaluation system, a CRTS III type slab ballastless track construction quality evaluation value is obtained by applying a CRITIC-EWM combined weighting method; on the basis of an SSA-LSTM architecture, a CRTS III type slab ballastless track construction process quality prediction model is constructed in combination with an MPA-VMD enhancement algorithm, and a subsequent evaluation value is predicted according to an existing evaluation value; and converting the BIM model into a GLTF format, displaying the GLTF format on a web end, and displaying the construction quality evaluation value and the prediction value in a corresponding area of the BIM model. The prediction model is high in accuracy and good in robustness, and the accurate prediction value can help field construction to find problems in advance and avoid risks.

The present application relates to the technical field of grouting construction method, and particularly relates to a CRTS III type slab ballastless track self-compacting concrete intelligent pouring construction method, which comprises the following steps: installing an edge sealing assembly between a track slab and a base slab, installing one set of electric control exhaust assembly at each corner of the edge sealing assembly, combining the edge sealing assembly, the electric control exhaust assembly, the track slab and the base slab to form a pouring cavity, setting one set of laser ranging assembly outside each set of electric control exhaust assembly, monitoring the height of the self-compacting concrete in the track slab, the base slab and the pouring cavity by the laser ranging assembly, injecting the self-compacting concrete into the pouring cavity through an electric control feeding hopper and diffusing and accumulating around the pouring cavity, dynamically controlling the pouring rate of the electric control feeding hopper by an external control terminal according to the obtained height data, closing the exhaust hole of the electric control exhaust assembly, continuously pouring the self-compacting concrete until the liquid level of the self-compacting concrete reaches the preset height in the anti-overflow pipe, and realizing feedforward control by constructing a target height function.

This invention discloses a CRTS-Ⅲ type ballastless track, relating to the field of track technology, comprising a base plate, a track slab, and a filling layer; the filling layer is formed by pouring self-compacting concrete between the track slab and the base plate; a corrugated steel frame is embedded within the track slab; the corrugated steel frame is assembled from a main corrugated plate, perforated channel steel, and strip corrugated plates. The CRTS-Ⅲ type ballastless track provided by this invention can avoid interlayer cracking and track slab cracking in slab ballastless tracks.

The application relates to the technical field of building component management, and relates to a CRTS III type track slab construction scheme optimization method and device based on a BIM model. The method comprises the following steps: acquiring first information, second information and third information; the first information comprises a CRTS III type track slab BIM model, a hoisting equipment BIM model and a bridge BIM model; the second information comprises real-time meteorological data; a digital twin model is constructed according to the first information, the second information and the third information; a hoisting position determination scheme is generated by using Monte Carlo simulation in the digital twin model; real-time pose information of the track slab and attitude information of an operator wearing AR glasses are acquired; and the CRTS III type track slab rough paving construction scheme is optimized according to the hoisting position determination scheme, the real-time pose information of the track slab and the attitude information of the operator wearing AR glasses. The application effectively improves the construction precision and efficiency of the CRTS III type track slab.

This invention discloses a CRTSⅡ type slab track full life cycle performance evolution and remaining life prediction system, belonging to the field of intelligent operation and maintenance technology for rail transit infrastructure. The system consists of a five-layer architecture: a multi-source perception layer, an edge computing layer, a performance evolution model layer, a hybrid life prediction engine, and an intelligent decision-making layer. It pioneers a four-field coupled performance evolution model of temperature, humidity, dynamic load, and foundation settlement, and constructs a hybrid life prediction engine of LSTM-grey prediction-Weibull distribution to achieve quantitative description of the full life cycle performance degradation of the track slab, CA mortar layer, base plate, and interlayer interfaces, as well as accurate prediction of remaining life. The system can automatically output maintenance level, maintenance timing, and special plans, completing the upgrade from post-maintenance to predictive maintenance. The invention has a relative error of ≤8.3% in remaining life prediction, ≤5.6% in performance evolution prediction, and ≤1.2s in early warning response. It is suitable for all scenarios including roadbeds, bridges, tunnels, high-altitude and high-temperature and high-humidity environments. It can improve operation and maintenance efficiency by more than 60% and reduce the total life cycle maintenance cost by 35%. It is applicable to intelligent operation and maintenance and safety assurance of CRTSⅡ type slab track for high-speed railways.

The utility model provides a track slab buckling and pressing tool for a CRTS III slab ballastless track, which comprises a plurality of pre-embedded sleeves, a pressing lever, a fixed steel plate, a connecting pull rod and a data acquisition unit, and is characterized in that the plurality of pre-embedded sleeves are pre-embedded on a base plate; the pressing bars comprise pressing rods and supporting legs fixed to the two ends of the pressing rods, and the pressing rods are transversely placed on the top face of the track plate. The connecting pull rod comprises an upper pull rod, a lower pull rod and a tension sensor connected between the upper pull rod and the lower pull rod, the lower pull rod is fixedly connected with the pre-embedded sleeve, the upper pull rod extends to the upper part of the pressing rod, and the pressing rod is locked on the track plate by screwing a locking nut on the upper pull rod; and the data collector is connected with the tension sensor. According to the buckling and pressing tool, the tension of the connecting pull rod is monitored in real time through the tension sensor, the bottom of the whole pressing rod makes contact with the track plate and applies pressure, the track plate is stressed more evenly, and the influence of warping amount degradation is reduced; the stress path of the buckling tool is optimized, and the stress condition better conforms to the actual working condition.