6results about How to "Improved deformation coordination" patented technology

The application discloses an economical boron-containing stainless steel for hot neutron absorption, which comprises the following steps: (1) component design; (2) smelting molten steel according to the set component in a vacuum environment, applying electromagnetic stirring in a smelting process, and carrying out casting under a nitrogen protection atmosphere to obtain a casting blank; (3) homogenizing heat treatment of the casting blank for 240-720 min between Ac3 and the melting point of boride (T f ); air cooling to room temperature after discharging; (4) after removing casting defects, inclusions and slag foreign matters by grinding the casting blank after heat treatment, carrying out hot deformation and solid solution treatment; the hot deformation heating temperature and the solid solution treatment temperature are respectively T f 10-80 DEG C and 30-100 DEG C. The application is aimed at the characteristics of high cost and poor hot plasticity of the traditional boron-containing stainless steel for hot neutron absorption, reduces the use of precious metal Ni, improves the hardness of the matrix structure, enhances the deformation coordination of the matrix and boride, greatly improves the hot plasticity, and improves the hot deformation capacity of the material.

The invention discloses a method for arranging a dam crest formwork increasing area on a core-wall rockfill dam to control water storage cracking and an earthquake response whip effect, a formwork increasing rockfill area is arranged at the position 1 / 3-1 / 5 of the dam height below the dam crest, the filling standard is controlled by adopting double indexes of porosity and relative density, it is guaranteed that the formwork increasing rockfill area reaches the full compaction degree, and the dam crest formwork increasing area is arranged at the position 1 / 3-1 / 5 of the dam height. The crack of the core-wall rock-fill dam is controlled, the whip effect of earthquake response of the rock-fill dam is effectively reduced, and the method for controlling the crack of the dam and improving the anti-seismic safety performance is expected to be achieved.

This application provides a roadbed construction method applicable to existing highway widening and reconstruction projects, relating to the field of highway widening and reconstruction. It includes: stepped excavation treatment: excavating in stages along the widening side of the existing roadbed to form a stepped connection zone, and laying an interface geogrid on the stepped surface; layered reverse-wrapping reinforced filling: compacting the fill material, folding the interface geogrid back into the fill body to form an inner reverse-wrapping reinforced fill body; assembling the outer segmented wall: hoisting and vertically splicing the prefabricated outer segmented wall; laying a composite drainage system; assembling the top capping components; installing the top tension restraint structure: laying a top tension geogrid, connecting the two ends to the outer segmented wall via adjustable connecting components; pre-tensioning and locking the top tension geogrid, pouring and shaping the top surface of the roadbed, connecting to the existing pavement, and removing construction auxiliary components to complete the construction. This application has the effect of reducing the risk of differential settlement and shear slippage.

The invention relates to the technical field of computer aided design, and discloses an FPC wiring design optimization method and system based on big data, and the method comprises the steps: obtaining the geometric features of a to-be-designed FPC wiring region and an associated historical wiring database, generating a node probability weight field representing the corresponding relation between the wiring node probability and the passing rate, coordinate numerical perturbation is applied to a flexible transition area to determine an impedance sensitivity coefficient, then a node probability weight field is corrected, a wiring forbidding constraint is established, and finally a wiring topology scheme is determined based on an optimization gradient. The impedance mismatching risk caused by manufacturing tolerance is avoided, the distribution relation between the wiring track and the bending stress is coordinated, and the signal integrity of the flexible circuit board under the complex working condition is improved.

This utility model discloses a tunnel arch structure, which includes a top arch plate, supporting arch plates on both sides of the top arch plate, connecting components at both ends of the top of the supporting arch plates, reinforcing components on the side walls of the two supporting arch plates, arch foot plates at the bottom of the two supporting arch plates, and multiple mounting holes on the top of the two arch foot plates. This tunnel arch structure utilizes an external hydraulic torque wrench to drive a screw rod to rotate, causing a locking block to be inserted into a slot and moved for engagement, resulting in tighter assembly and preventing misalignment. The connection between the top arch plate and the supporting arch plates is more stable, improving the support effect of the tunnel arch. Furthermore, by inserting an anchor pipe into the soil layer through a positioning sleeve and injecting cement mortar that flows out from the grout outlet, installation stability is improved. A rubber sleeve prevents backflow of soil and rock from affecting use. The arch structure has better deformation coordination with the surrounding rock, and the installation of the supporting arch plates on the tunnel wall is more stable.

This invention provides a flexible pressure-yielding support device and method for roadway floor heave, relating to the field of coal mine roadway support technology. The device includes a rigid load-bearing frame, a compressible bag, a crushed stone force-transmitting layer, a grouting hardening layer, a crushed stone removal unit, and a bag re-pressurization unit. The compressible bag is filled with a compressible buffer medium, which absorbs deformation energy during floor heave, achieving flexible pressure yielding. A pressure sensor and a solenoid valve work together to maintain the bag pressure within a set range. A flow sensor monitors the amount of medium discharged, triggering a limit warning when a threshold is reached. The crushed stone removal unit quantitatively removes compacted crushed stone from the frame, providing space for the bag to reset. The bag is then re-pressurized using underground compressed air pipelines, enabling the device to be reused cyclically. This invention features adaptive pressure yielding, limit warning, and reusability, solving the problems of poor coordination between existing support structures and large deformations in soft rock, unstable treatment effects, and single-use devices, significantly improving the treatment effect and economic benefits of floor heave.