30results about How to "Realize civilized construction" patented technology

The invention relates to lightly calcined dolomite thermal insulation mortar, which comprises the following components in part by weight: 20 to 60 parts of lightly calcined dolomite, 1 to 60 parts of flyash, 5 to 35 parts of retarding agent, 1 to 40 parts of strengthening and thickening agent, 1 to 20 parts of kieselguhr, 5 to 35 parts of expanded aggregate, 0.5 to 5 parts of polystyrene foam particle, 0.01 to 0.2 part of polypropylene fiber, 0.5 to 8 parts of water resistance additive, and 0.05 to 2 parts of water reducer. The thermal insulation mortar has the advantages of excellent thermal insulation property, good compression strength, freezing resistance and water resistance, good volume stability, low production cost, energy conservation, environmental friendliness and the like. The construction process is simple; and after construction, the lightly calcined dolomite thermal insulation mortar is not hollowed or cracked, and is particularly suitable for a thermal insulation material for building walls.

The heat insulating foamed polystyrene particle mortar used in building engineering consists of portland cement 40-45 wt%, flyash 3-6 wt%, fine silica powder 0-3 wt%, foamed polystyrene particle 1.3-2.8 wt%, polypropylene fiber 0.1-0.2 wt%, quartzite 42-47 wt% and water-thinned silane/siloxane emulsion 5-8 wt%. The present invention has light bulk weight, dry density 300-480 kg/cu m; good heat insulating and sound isolating performance, and heat conducting coefficient 0.07-0.13 W/m.k. The present invention utilizes partial flyash to replace cement and the product has no environment pollution.

The invention discloses a recharge well construction method adopting electroosmosis. The method comprises the following steps: determining groundwater level depth and soil layer lithologic distribution of a recharge field; according to a recharge target aquifer, constructing multiple recharge tube wells on the same side outside a foundation pit, performing a pumping test and a recharge test on the recharge tube wells to determine a permeability coefficient, a recharge influence radius and a recharge quantity; further determining a recharge scheme according to results of the pumping test and the recharge test, and constructing other recharge tube wells outside the foundation pit in the recharge field; arranging electrodes in positions certain distances away from the corresponding recharge tube wells and on one sides, away from the foundation pit in the recharge field, of the recharge tube wells; connecting the recharge tube wells through wires to form a recharge tube well conductive circuit, connecting the electrodes to form an electrode conductive circuit, connecting the recharge tube well conductive circuit with a power cathode, and connecting the electrode conductive circuit with a power anode. With adoption of electroosmosis, the permeability of soil mass around the recharge wells is improved, dissipation of recharge water is accelerated, and interference in the groundwater environment can be reduced.

The invention relates to a dam concrete cabin surface water accumulation hidden pipe discharge method. A water discharge main pipe is arranged in a preset region and is communicated with the upstream and the downstream of a dam, water discharge branch pipes are introduced to the left side and the right side of the dam body of the dam from the water discharge main pipe and are communicated with each dam block in a region, and a vertical water discharge branch pipe is connected onto the water discharge branch pipes of each dam block and is communicated with each concrete cabin position in each dam block. The dam concrete cabin surface water accumulation hidden pipe discharge method is characterized in that in the dam concrete casting construction process, the pre-buried water discharge pipenetwork continuously extends and expands to all concrete casting dam blocks along with the dam body concrete casting progress, each newly cast concrete cabin position in the dam region is fully covered, the water discharge problem of large-area accumulated water of the dam concrete cabin surface is solved, a dry ground construction environment condition is created for the concrete casting, the concrete casting quality is ensured, the construction interference is reduced, and the engineering civilization construction is realized.

The invention discloses a push sliding type disk lock support heavy lining trolley. The trolley comprises a lining form system, a disk lock type full framing, a trolley chassis and stand columns, wherein a screw jack is installed at the top end of each stand column, and all the screw jacks can jointly jack or lower the lining form system through a longitudinal through beam, a plurality of horizontal pushing oil cylinders are arranged on the rear portion of the trolley chassis in a left-right spaced mode, the rear end of each horizontal pushing oil cylinder abuts against a transversely-extendedoil cylinder support, and at least two pieces of threaded steel are adopted at the rear portion of each oil cylinder support to be inserted into tunnel bottom plate concrete as counter force supports. Meanwhile, the invention also discloses a method for constructing a lining form by utilizing the above-mentioned push sliding type disk lock support heavy lining trolley. The lining trolley specially used for ultra-large-span tunnel lining construction can be recycled and reused, so that the time-consuming and cost-consuming caused by the fact that the trolley is built again after being dismantled are avoided, and the trolley is safe, reliable and high bearing capacity.

The invention discloses a production method of lightweight concrete prefabricated big panels. The method comprises the following steps: 1, selecting raw materials according to a case that every cubic meter of lightweight concrete prefabricated big panels contains 450-550kg of cement, 65-195kg of stone flour, 3.25-9.75kg of a water reducer and 0.01-0.05kg of a foaming agent, foaming the foaming agent, uniformly mixing cement, the stone flour and the water reducer to prepare a cement mortar, adding the foamed foaming agent to the cement mortar, and uniformly stirring the foamed foaming agent and the cement mortar to prepare lightweight concrete; and 2, pouring the lightweight concrete in a die, and carrying out demolding treatment and curing to produce the lightweight concrete prefabricated big panels. The method solves the problem of adverseness of too large weight of common prefabricated big panels to transportation and hoisting installation, the weight of the lightweight concrete prefabricated big panels produced in the invention is about 50% lower than that of common concrete prefabricated big panels, and the construction efficiency of prefabricated wallboards is effectively increased.

The invention relates to a large-span elevated building without a column at the center and a wall at the bottom and a construction method, and belongs to the field of buildings. According to the large-span elevated building, frame columns in the elevated building are arranged in a multi-point mode, a plurality of frame beams are arranged on the frame columns from top to bottom, the plurality of frame beams are mutually encircled, the frame beams encircled on the same horizontal plane form a beam frame of a single-storey floor, floor slabs are arranged between beam frames defined by each layer of frame beam set to form a closed structure, and the frame beam located at the bottom is erected away from the ground through the hanging columns. According to the large-span elevated building without the column at the center and the wall at the bottom, the number of columns (or walls) can be reduced to the minimum, the horizontal distance of the columns (or walls) is about 30-50 m, the outward-protruding area of the columns (or walls) is about 30 m, no column (or wall) exists around the building, and the suspension type building effect is achieved; only four columns (or walls) are arranged on the bottom layer of the building and can be used as large open-type activity spaces for performances, exercises and the like; and the upper layers are large in use space, the occupied space of the columns (or walls) is small, flexible division can be achieved, and diversified use is achieved.