32results about How to "Avoid the impact of construction" patented technology

The invention discloses a construction method of a grouted stone block revetment structure for a sloping dike in a river and sea reclamation area. The construction method comprises the following stepsof a clearing the base layer of the sloping dike, b installing material stopping supports, c piling up the first layer of stone blocks, d piling up the second layer of stone blocks, e piling up the third layer of stone blocks, f conducting overall wetting, g continuously pouring concrete, h dismantling devices and i detecting the quality. According to the construction method, the stone blocks arepiled up layer by layer, after each layer of stone blocks are piled up, a protective measure is taken, it is guaranteed that the surface of each layer of stone blocks is flat, the piling-up gap of each layer of stone blocks is controlled so that the gaps between the layered stone blocks can be gradually reduced from top to bottom, the stone blocks which are piled up layer by layer mutually generate action force, the poured concrete can fully permeate into the gaps between the stone blocks and is solidified, shrinkage cracks are avoided, and it is guaranteed that the concrete can reach the corresponding strength and durability; besides, by the adoption of the construction method, the construction period is shortened, the height of each layer of piled-up stone blocks can be conveniently controlled, and the force borne by each layer of stone blocks is strictly controlled.

The invention discloses a full-span box girder segment assembling method applied to bridge construction. The full-span box girder segment assembling method comprises the following steps that (1) full-span box girder segments to be assembled are transported to the tail part of a bridge fabrication machine by a girder transporting trolley; (2) a warm shed is arranged on the bridge fabrication machine so that the warm shed completely wraps the whole bridge fabrication machine; (3) the full-span box girder segments are suspended and placed in the preset positions by the bridge fabrication machine, and in addition, a jack is used for carrying out space position regulation so that the full-span box girder segments are placed according to the specified line shape; (4) wet joint steel bars are bound at the end parts of the full-span box girder segments, a wet joint template is installed, and in addition, wet joint concrete is poured; (5) the wet joint concrete is subjected to covering maintenance until the intensity and the elasticity modulus reache the design requirement; (6) the prestress tensioning is carried out, then, the bridge fabrication machine is emptied and forwards moves to pass through a hole, and the assembling of the next full-span box girder segments is carried out; and (7) a maintenance shed is built for carrying out later-period maintenance on wet joints. The full-span box girder segment assembling method has the advantages that the construction in cold weather can be realized under the condition of ensuring the construction quality, and high practical values and promotion values are realized.

The invention discloses a high-pier pouring forming method applied to bridge construction. The high-pier pouring forming method is characterized by comprising the following steps that (1) a heat insulation shed is built; (2) multiple sections of equilong templates are adopted to be superimposed to form a high-pier pier body template inside the heat insulation shed; (3) on the basis of the formed high-pier pier body template, a high-pier pier body with the same height as the high-pier pier body template is poured inside the heat insulation shed in one step; (4) all templates under the topside template are dismounted, and in addition, the topside template is used for the template installation support during the pouring of the lower section of pier body; (5), the pouring height of each section of later high-pier pier body is the sum of the heights of the templates except the topside template in the step (4), and the high-pier pier bodies are sequentially poured until the pouring is completed; and (6) the high-pier pier bodies are maintained in the heat insulation shed to carry out heat insulation maintenance until the final formation is realized. Through the scheme, the high-pier pouring forming method has the advantages that the influence of cold weather on the bridge construction is avoided, the construction quality is ensured, and high practical values and promotion values are realized.