6results about How to "Improve construction conditions" patented technology

The invention relates to the technical field of path planning, in particular to a cable path planning method based on deep learning and multi-objective optimization, and the method comprises the following steps: based on remote sensing image data, employing a multi-scale semantic segmentation deep learning model, combining with an auxiliary accessibility tagging sample, and recognizing the type of each ground feature; constructing a ground feature accessible confidence field with continuous spatial distribution; constructing a confidence coupling path cost function, endowing a penalty weight to an area with low ground feature confidence, endowing a passage reward weight to an area with high confidence, and generating a confidence coupling path cost function for path search; and constructing an improved heuristic function, and executing path search by adopting a multi-objective optimization algorithm to obtain a cable path scheme. According to the method, the historical total cost of the current node is considered, and the average confidence risk from the current node to the target direction is predicted, so that prospective avoidance is realized.

The utility model discloses a wallboard pre-embedded filler wall pouring material pouring funnel, which belongs to the technical field of pouring of secondary structure filler walls and constructional columns in constructional engineering and comprises a funnel body, funnel additional ribs, funnel baffles, straight thread sleeves, built-in steel bars and grouting holes. By changing the appearance design of the pouring material pouring funnel and the using process of the pouring material pouring funnel, waste of a large amount of manpower and material resources caused by chiseling in the traditional process is avoided, good construction conditions are brought to popularization of pouring construction of the infilled wall, construction efficiency is improved, and construction cost is saved.

The application provides an open pit end slope coal spontaneous combustion advanced treatment method, and belongs to the technical field of coal safe mining, and comprises the following steps: determining a coal spontaneous combustion advanced treatment width B1 according to the stability coefficient of a slope in an initial state and a preset first step length; determining a coal spontaneous combustion treatment width B2 according to the stability coefficient of the slope in the initial state and a preset second step length; when the coal spontaneous combustion advanced treatment width B1 is greater than the coal spontaneous combustion treatment width B2, then the above steps are repeated, the coal spontaneous combustion treatment width B2 is gradually increased according to the preset second step length, and when the coal spontaneous combustion advanced treatment width B1 is less than or equal to the coal spontaneous combustion treatment width B2, the final coal spontaneous combustion treatment width is determined as the current coal spontaneous combustion treatment width B2. The application can effectively use the discarded materials to replace and fill the end slope coal seam with high spontaneous combustion tendency in advance, mine a large amount of end slope coal resources, save a large amount of discarded space, and facilitate construction conditions.

The application discloses a main bridge steel structure construction method and relates to the technical field of bridge construction. The specific steps comprise the following steps: dividing regions, installing baffle plates and pier columns, installing steel pipe piles and platform support columns, installing inter-column supports and sliding beams to form sliding tracks, repeatedly constructing the south bank, completing platform support covering a river, installing lower chord rods and lower bridge decks, installing upper chord rods and upper bridge decks, installing upper-layer cantilevers and lower-layer cantilevers, assembling sliding units, repeatedly assembling sliding units until closure, hoisting the last sliding unit and completing installation of the main bridge steel structure. The construction method can reduce operation risks, shorten construction period, save materials and reduce costs.

The present application relates to the vertical rotation technical field of cable-stayed bridge main tower, and discloses a vertical rotation method of single-tower double-layer steel truss girder cable-stayed bridge main tower, which is characterized by comprising the following steps: S1, a temporary assembling platform is erected on the bridge deck, the main tower structure is assembled at 5 degrees with the bridge deck, and the overall assembly is completed on the bridge deck; S2, a vice tower is assembled, two side hoisting cages, compression rods, flexible pull rods, cable anchors, back cable anchors, steel strand jacks and the like are installed, the vice tower portal frame is installed on the main tower, the front pull anchor points are arranged on the main tower, the rear pull anchor points are arranged on the bridge deck, the main tower is assembled on the bridge deck, the construction condition is better, the welding quality is more easily controlled, the main tower installation time is greatly shortened, the temporary equipment investment is saved, the construction machinery cost is greatly reduced, and the structural safety is more easily guaranteed, and meanwhile, the main tower structure is assembled at 5 degrees with the bridge deck, so that it is easier to pull than directly in the horizontal direction.

This invention discloses a gel-coated silent destructive agent material and its preparation method. The destructive agent material consists of a liquid component A and a solid component B. Liquid component A is prepared from the following raw materials in parts by weight: 20-30 parts water, 1.5-2.5 parts water-soluble alkali-resistant polymer, 0.3-1.0 parts sodium alginate, and 1.25-6.25 parts easily soluble calcium salt aqueous solution. Solid component B is prepared from the following raw materials in percentage by weight: 70%-86% calcium oxide, 6%-12% calcium chloride, 2.5%-6.0% dicalcium silicate, 2.5%-6.0% tricalcium silicate, and 3%-6% gypsum. The destructive agent material of this invention has an "eggshell" structure formed by the outer gel coating of destructive agent particles. The shell breaks after the reaction reaches a certain extent, and the reaction time is controllable. Moreover, due to the outer gel coating, it is not sensitive to environmental temperature, solving the problems of limited application scenarios (only usable in vertical holes) and great influence from environmental temperature of traditional destructive agent materials.