6 results about "Segment length" patented technology

The present application relates to a kind of track minimum section length calculation method, system, equipment and medium, the method first clearly the fault scene that track section length is too small appears, secondly, the actual parameter of line is input, finally, the minimum length of section under different fault scene is automatically calculated, and the maximum minimum length of section in different fault scene is selected as the final track minimum section length.Compared with prior art, the present application has the advantages of reducing the workload of designers, reducing the error probability and the like.

This application discloses a method, apparatus, storage medium, and electronic device for determining the location of rebar breakpoints. The method includes determining corresponding target segment intervals based on the distances between multiple adjacent supports with a connection relationship in an engineering drawing; determining a current breakpoint in the engineering drawing that matches at least one target rebar object based on a first reference length of a first reference rebar object; repeating the following steps until the remaining length of the target rebar object is less than the first reference length: if the current breakpoint is within the target segment interval, determining the next current breakpoint based on the first reference length, using the current breakpoint position as the starting point; if the current breakpoint is outside the target segment interval, adjusting the current breakpoint position to within the target segment interval that meets the segment length condition, and determining the next current breakpoint based on the first reference length. This application solves the technical problem of low efficiency in determining the location of rebar breakpoints in related technologies.

This invention relates to a design and construction control method for prefabricated composite supports considering eccentricity, comprising: 1. Pre-embedding strain sensors in the middle and ends of segments to ensure that the deviation between the centroid of the steel frame and the centroid of the concrete in each segment is ≤L / 5000, where L is the segment length; measuring and recording the measured value e0 of the initial centroid eccentricity before leaving the factory; 2. Determining the axial force distribution coefficient of the steel frame based on the stiffness ratio; calculating the additional bending moment Madd caused by centroid eccentricity under axial pressure P using e0; calculating the ultimate bearing capacity Pmax based on Madd and P; 3. Collecting the strain of the steel frame and concrete in layers during foundation pit excavation, and measuring the horizontal displacement Δ of the diaphragm wall at the support elevation; calculating the additional bending moment M during construction based on Δ. Δ M Δ The total bending moment M is obtained by superimposing Madd, and the crack width w is calculated from M; the actual eccentricity e during the construction stage is calculated from the measured strain. a , will e a Compare with e0 and check the cross-sectional stress; IV. Take control measures as appropriate.

The application discloses a method for estimating grouting quantity of vertical shaft ground, which comprises the following steps: grouting hole arrangement; drilling all grouting holes to the designed hole depth and collecting grouting hole cores; segmenting the designed hole depth, and setting the segment length as the same value; calculating the rock stratum of each grouting segment of all curtain holes by taking the segment height RQD as the rock quality index; segmenting grouting of the pilot hole; grouting quantity statistics of the pilot hole; solving the rock stratum influence factor of each grouting segment; and estimating the total grouting quantity. The application has the characteristics of high prediction accuracy, convenient prediction method and simple construction, and can more accurately estimate the required grouting quantity of the curtain, and has certain engineering guiding significance.

The invention discloses a numerical control processing-oriented speed optimization method, which relates to the field of numerical control processing, and comprises the following steps of: pre-reading a processing program to obtain three adjacent interpolation points, calculating the length of a small line segment, the included angle of the adjacent line segments and the height of a triangle, and eliminating intermediate points meeting conditions according to preset length, corners and height threshold values; obtaining an interpolation point sequence subjected to point elimination; the interpolation point sequence is divided into continuous tiny line segment columns according to the feeding speed, the motion type and the steering continuity of adjacent interpolation segments, the arc radius is calculated in each line segment column through the three-point circle forming relation, and space arc compression is conducted on broken lines meeting the conditions; and kink smoothing is conducted on track points which cannot be compressed and conform to the relation between the inner and outer section lengths and steering, cubic spline curve fitting is conducted on remaining broken lines to generate an optimized track to control machine tool movement, the actual cutting speed of a machine tool is made to be close to the set speed, the cutting time is shortened, and machine tool vibration is reduced.

This invention discloses a method for processing giant bridge tower piers, comprising the following steps: a pre-processing stage, establishing a three-dimensional solid BIM model, determining the dimensional parameters and assembly relationships of each component, and generating a visual processing flowchart and parameter table; a longitudinal rib segmentation stage, determining the segment length of the longitudinal ribs based on the spacing of the transverse diaphragms, ensuring that the length of a single longitudinal rib segment does not exceed four transverse diaphragm spacings and does not exceed 4m; a longitudinal rib curling stage, simulating the theoretical height loss of the longitudinal ribs after segmentation using the BIM model, and performing curling processing on longitudinal ribs with a height loss greater than 100mm after segmentation; a general assembly jig stage; an assembly stage, dividing the giant tower pier into multiple layers, assembling the giant tower pier symmetrically from the inside out; and a multi-segment pre-assembly and positioning matching stage. This invention enables high-precision, high-efficiency, and high-quality processing of tower pier components.