32results about How to "Error will not occur" patented technology

The invention discloses a bearing-rail beam low track and viaduct transition section structure of medium-low-speed magnetic suspension traffic engineering. The structure comprises a roadbed, a bridge abutment, bearing-rail beams, a plurality of grouting pipes and drainage ditches. The bridge abutment comprises an abutment back body and abutment cones. Each bearing-rail beam comprises a bottom slab and an upper structure arranged on the bottom slab, and the bottom slab is buried in the roadbed and extends downwards to form tenons corresponding to tenon grooves. Each tenon is placed in the corresponding tenon groove, and round corners are arranged on the tenons and the tenon grooves so that the tenons can rotate in the tenon grooves. The grouting pipes are arranged in the roadbed. According to the bearing-rail beam low track and viaduct transition section structure, the bearing-rail beams of a low track are in lap joint with the tenon grooves of a viaduct, so that settlement and slab staggering, caused by different foundation treatment measures, between the low track and the viaduct are avoided, the effect that settlement and slab staggering of a magnetic levitation F rail at the junction of the low track and the abutment are avoided is guaranteed, and the requirement for smoothness of the F rail at the transition section between a viaduct structure and the low track of the magnetic suspension traffic engineering is effectively met.

The invention relates to a cement hydration heat measuring device, and relates to the technical field of testing equipment. According to the adopted technical scheme, the cement hydration heat measuring device comprises a constant temperature water bath, an insulating container and a cover body, wherein the insulating container is arranged in the constant temperature water bath and used for containing reactive materials; the cover body is provided with a charging opening, a stirring device and a temperature sensor; the cover body is detachably in sealing connection with an opening of the insulating container; the stirring device is used for stirring the reactive materials in the insulating container; the temperature sensor is used for detecting the temperature of the reactive material during the reaction, acquiring temperature data and transmitting the temperature data to a processing device. The provided cement hydration heat measuring device has the advantages that the hydration heattemperature can be detected in real time to ensure the accuracy of the detected temperature.

The invention belongs to the technical field of medium-low speed maglev traffic engineering low-set lines and discloses a medium-low speed maglev single-line filling section independent pier stud type rail bearing beam transition section structure. The transition section structure comprises pile foundation bearing structures, reinforced concrete rail bearing beam base plates, reinforced concrete beam type structures, lower roadbed filler of a rail bearing beam, two-side backfill filler of the rail bearing beam, a bridge abutment, a trapezoid filling body and end walls, wherein one end of each reinforced concrete rail bearing beam base plate is arranged on the bridge abutment in an overlapping mode, and the end walls are arranged on the two sides of the end, arranged on the bridge abutment in the overlapping mode, of each reinforced concrete rail bearing beam base plate respectively. The transition section structure is higher in long-term stability, the high requirement for rail bearing beam structural deformation and post-construction settlement is met, and the requirement for long-term stability, durability and construction quality controllability of a foundation bed is met. By arranging the end, close to an elevated bridge, of each reinforced concrete rail bearing beam base plate on the bridge abutment in the overlapping mode, smooth transition between a maglev elevated structure and a low-set line transition section F rail is effectively achieved.

The present invention belongs to the technical field of lower lines of medium-low speed maglev traffic engineering, and discloses a transitionary structure of a pile foundation composite separated bearing-trail beam of a medium-low speed maglev double-line excavated section. The transitionary structure comprises first pile foundation bearing structures, pile foundation-underpinning beam composite bearing structures, two rows of reinforced concrete bearing-trail beam bed plates, two rows of reinforced concrete beam structures, backfill fillers at two sides of the bearing-trail beam, a bridge abutment, and an end wall. A plurality of first pile foundation bearing structures are arranged; top ends of the reinforced concrete bearing-trail beam bed plates are connected to the reinforced concrete beam structures; drainage ditches are disposed beside the backfill fillers at the two sides of the bearing-trail beam, and drainage slopes are disposed at one sides, far away from the backfill fillers at the two sides of the bearing-trail beam, of the drainage ditches. The transitionary structure of a pile foundation composite separated bearing-trail beam of a medium-low speed maglev double-line excavated section is better in long-term stability, and meets the high requirements of structural distortion and post-construction settlement of the bearing-trail beam and also the requirements of the long-term stability and durability of a foundation bed and the controllability of construction quality; and with the structure, smooth transition between a maglev elevated structure and a low-line transitionary F track is effectively achieved.

The invention belongs to the technical field of medium-low speed maglev traffic engineering low-set lines and discloses a medium-low speed maglev single-line excavation section pile foundation support beam type rail bearing beam transition section structure. The transition section structure comprises pile foundation bearing structures, a reinforced concrete support beam, reinforced concrete rail bearing beam base plates, reinforced concrete beam type structures, two-side backfill filler of a rail bearing beam, a bridge abutment and end walls, wherein the reinforced concrete support beam is connected to the top end of each pile foundation bearing structure in a supported mode, the reinforced concrete beam type structures are connected to the top ends of the reinforced concrete rail bearing beam base plates in a supported mode, a first drainage ditch is arranged beside the two-side backfill filler of the rail bearing beam, and a first drainage slope is arranged on the side, away from the two-side backfill filler of the rail bearing beam, of the first drainage ditch. The transition section structure is higher in long-term stability, the high requirement for rail bearing beam structural deformation and post-construction settlement is met, the requirement for long-term stability, durability and construction quality controllability of a foundation bed is met, and smooth transition between a maglev elevated structure and a low-set line transition section F rail is effectively achieved.

The invention relates to an automatic measurement robot for a clutch disc group, comprising a radius adjusting device, four limiting devices, two individual lifting devices and an underframe, the underframe is symmetrically mounted at the lower end of the radius adjusting device, the four limiting devices are uniformly mounted at the upper end of the radius adjusting device along the circumferential direction of the radius adjusting device, and the two individual lifting devices are mounted at the front end and the rear end of the radius adjusting device. The automatic measurement robot provided by the invention can solve the problems that an existing clutch disc group needs to stack clutches before height measurement, clutch discs can not be easily stacked orderly, the situation that oneside is high and the other side is low can appear easily, data error can appear easily during measurement, any one clutch disc in the clutch disc group can not be conveniently measured and long time is consumed, and multidirectional limit on the clutch disc group and a function that one clutch disc is individually separated and subjected to measurement can be realized.

The invention belongs to the technical field of low lines of a medium and low-speed maglev transportation project, and discloses a pile foundation composite framing type bearing rail beam transition section structure for a medium and low-speed maglev double-line fill section. The pile foundation composite framing type bearing rail beam transition section structure comprises first pile foundation bearing structures, a pile foundation joist composite bearing structure, two rows of reinforced concrete bearing rail beam bottom plates, two rows of reinforced concrete girder structures, roadbed filler under a bearing rail beam, backfill at the two sides of the bearing rail beam, a bridge abutment, a trapezoidal filling body and an end wall, wherein the plurality of first pile foundation bearing structures are available; the top ends of the reinforced concrete bearing rail beam bottom plates support the reinforced concrete girder structures; the backfill at the two sides of the bearing rail beam is supported by the roadbed filler under the bearing rail beam. The pile foundation composite framing type bearing rail beam transition section structure is better in long-term stability, not only meets the high requirements on bearing rail beam structure deformation and post-construction settlement, but also meets the requirements on long-term stability, durability and controllability of construction quality of a foundation bed, and effectively realizes smooth transition from a maglev elevated structure to an F rail of a low-line transition section.

The invention belongs to the technical field of medium and low speed maglev traffic engineering low lines and discloses a composite bearing rail beam transition section structure of a medium and low speed maglev single line excavation section pile foundation. The composite bearing rail beam transition section structure of the medium and low speed maglev single line excavation section pile foundation comprises a first pile foundation bearing structure, a pile foundation support beam composite bearing structure, a reinforced concrete bearing rail beam bottom plate, a reinforced concrete beam type structure, backfill filler on two sides of a bearing rail beam, a bridge abutment and an end wall, wherein the top of the first pile foundation bearing structure is connected with the reinforced concrete bearing rail beam bottom plate in a bearing mode; the top end of the reinforced concrete bearing rail beam bottom plate is connected with the reinforced concrete beam type structure in a bearing mode; drainage ditches are arranged beside the backfill filler on the two sides of the bearing rail beam; and drainage slopes are arranged on the sides, far away from the backfill filler on the two sides of the bearing rail beam, of the drainage ditches. The composite bearing rail beam transition section structure of the medium and low speed maglev single line excavation section pile foundation is better in long-term stability, not only meets the high requirements of deformation and post-construction settlement of the bearing rail beam structure, but also meets the controllability requirements for long-term stability, durability and construction quality of a foundation bed, and effectively realizes smooth transition between a maglev elevated structure and a low line transition section F rail.

The invention belongs to the technical field of middle and low speed, magnetic levitation traffic engineering for lowly-laid rail route, and discloses the transition structure for middle and low speed, magnetic levitation, single-line fill section pile foundation, joist-type rail-bearing beam. The structure includes a foundation load-bearing structure, a reinforced concrete joist, a base floor for reinforced concrete rail-bearing beam, a reinforced concrete beam structure, a rail-bearing beam below-roadbed fillings and a rail-bearing beam two-side backfill fillings, a bridge abutment, a trapezoid filling body and an end wall. The aforementioned foundation load-bearing structure is provided with multiple pieces; the top part of the reinforced concrete rail-bearing beam base floor connects with the reinforced beam structure; the aforementioned trail-bearing beam two-side backfill fillings connect through the rail-bearing beam below-roadbed fillings. The present invention has better long-term stability; it satisfies the high requirements of structure deformation and post-construction settlement of rail-bearing beam, it also satisfies the requirements of long-term stability, durability and controllability of construction quality for the foundation bed, effectively achieving the smooth transition of magnetic levitation elevated structure and lowly-laid rail route transition section F track.

The invention belongs to the technical field of low lines of a medium and low-speed maglev transportation project, and discloses a pile foundation joist type bearing rail beam transition section structure for a medium and low-speed maglev double-line excavation section. The pile foundation joist type bearing rail beam transition section structure comprises pile foundation bearing structures, reinforced concrete joists, a reinforced concrete bearing rail beam bottom plate, two rows of reinforced concrete girder structures, backfill at the two sides of a bearing rail beam, a bridge abutment and an end wall, wherein the top ends of the pile foundation bearing structures respectively support the reinforced concrete joists; the top ends of the reinforced concrete bearing rail beam bottom plates support the reinforced concrete girder structures; first drainage ditches are arranged beside the backfill at the two sides of the bearing rail beam; a first drainage slope is arranged at the side, far away from the backfill at the two sides of the bearing rail beam, of each first drainage ditch. The pile foundation joist type bearing rail beam transition section structure is better in long-term stability, not only meets the high requirements on bearing rail beam structure deformation and post-construction settlement, but also meets the requirements on long-term stability, durability and controllability of construction quality of a foundation bed, and effectively realizes smooth transition from a maglev elevated structure to an F rail of a low-line transition section.