35results about How to "Reasonable construction technology" patented technology

The invention provides insulation powder coating. The insulation powder coating is in powdered shape. The insulation powder coating is prepared from the following components in parts by weight: 100 parts of solid epoxy resin, 10 to 100 parts of solid organic silicon resin, 1 to 60 parts of latent curing agent, 10 to 100 parts of flame retardant, and 0.1 to 10 parts of accelerant, wherein the epoxy resin comprises bisphenol A epoxy resin, and the latent curing agent comprises multi-amino cage-shaped silsesquioxane. An insulation layer formed by the insulation powder coating is used for substituting the traditional adhesive film, a compact complete protection layer is formed on the overall outer surface of a shell, a pin hole is avoided, the adhesion is good, the insulation powder coating has good insulation performance, electricity leak-proof performance, flame retardance and mechanical performance, and also has good heat conductivity, heat generated by the running of a lithium battery can be released in time. Permanent insulation protection can be provided for the exterior of a metal shell, so that the reliability of the battery is improved. The invention also provides a preparation method and a painting method of the insulation powder coating, and a lithium battery metal shell coated with the insulation powder coating.

The invention is a dry earth drawing-hole forming construction process of a helical digging driller, comprising in turn site layout process, pile position templating process, helical digging driller seating process, steel sleeve burying process, drilling construction process, geologic condition recording process, hole forming checking process, residues cleaning process, etc, and having the characters of replacing traditional manmade experience construction method, needing no slurry to protect walls in the hole forming course, reasonable and convenient to operate, low operating cost, etc.

The invention relates to a composite modified asphalt of styrene butadiene styrene block polymer (SBS) and rubber powder and a preparation method thereof. The modified asphalt comprises 0.3-0.4% of a stabilizer, 0.03% of an activating agent, 10-15% of rubber powder, 2% of SBS, 3-4% of styrene-butadiene rubber extending oil and the balance of matrix asphalt, wherein the total weight meets 100%. The preparation method of the modified asphalt comprises the steps of dividing the matrix asphalt into two equal mass of parts, firstly, preheating the first part to 125+/-2 DEG C; adding the SBS and the styrene-butadiene rubber extending oil to heated asphalt to shear and disperse at medium and high speeds; adding the rubber powder and the activating agent to the other part of matrix asphalt, swelling for 2 hours at 160 DEG C, finally shearing and dispersing the two parts of mixtures for 1 hour under the condition of 180 DEG C, and then adding the stabilizer, and cutting and developing for 1 hour at a low speed and then preparing the composite modified asphalt of rubber powder/SBS. The composite modified asphalt of the SBS and the rubber powder disclosed by the invention has the advantages that the composite modified asphalt is fully swelled; the noise-reduction is obviously reduced; and the preparation method is reasonable in construction technology, low in energy consumption, and excellent in performance of the composite modified asphalt.

The invention discloses a comprehensive construction method for a pre-cut groove loop-sealing double-wall steel cofferdam deep water foundation. The method includes the following steps that (1) a trestle and a platform are set up; (2) pile foundation construction is performed; (3) a rotary excavating drill is used for precutting of grooves in a riverbed at the double-wall steel cofferdam blade foot position; (4) cofferdam splicing is conducted; (5) a cofferdam tripping system and a continuous jack are installed; (6) cofferdam tripping is carried out; and (7) the cofferdam bottom is sealed. According to the comprehensive construction method for the pre-cut groove loop-sealing double-wall steel cofferdam deep water foundation under complicated geological conditions, the construction technological level is perfected and improved, the purpose that the construction technology is advanced, reasonable, economical and safe is achieved, experience is provided for similar construction, and an important guiding function is provided for deep water foundation construction and cofferdam construction works.

The invention discloses a method for static slurry protecting wall drilling hole molding of rotational hole driller, which comprises: area distribution, post sampling, removing blocks, digging protecting cylinder, inserting tube, drilling hole, embedding protecting cylinder, checking the position of post, measuring the mixing parameter of slurry, removing drilling slag, drilling a hole with driller, checking the hole diameter. The invention can replace traditional manual-experiment construction method which need slurry protective wall in the hole forming process. Wherein, the drilling head is moving between the hole bottom and the ground in the drilling process, with easy operation, simplified process and lower cost.

The invention discloses an internal strengthening and reinforcing method for PCCP (prestressed concrete cylinder pipes) with broken wires. The internal strengthening and reinforcing method includes steps of A, preparing DXE elastic materials and carbon fiber sheet materials according to construction designs; B, checking, repairing and flattening the inner surfaces of concrete pipe cores of the PCCP, thoroughly cleaning the repaired inner surfaces of the concrete pipe cores and drying the inner surfaces of the concrete pipe cores. The internal strengthening and reinforcing method for the PCCP with the broken wires has the advantages that characteristics of the various materials are sufficiently utilized, excavation along the outsides of pipelines can be omitted, the construction method is simple, convenient and speedy, the investment can be saved, excellent seepage prevention effects can be realized, the PCCP are good in abrasion resistance, and the internal strengthening and reinforcing method is nontoxic and environmentally friendly and can be used in strengthening and reinforcing construction on pipes with broken wires for drinking water engineering; performance merits of the various materials for a combined structure for strengthening seepage prevention composite linings can be sufficiently played and are optimally combined with one another, composition structures are reasonably matched with one another, and accordingly good effects for integrally structurally strengthening the PCCP with the broken wires can be realized.

The invention provides a ring beam formwork which comprises flexible formworks, a plurality of wooden flutes, inner and outer ring binding reinforcing steel bars, inner braces, support bars and draw bars. The flexible formworks comprise a plurality of layers of bamboo plywood, the equidistant wooden flutes are vertically fixedly arranged on the bamboo plywood, and heights of the wooden flutes are predetermined; the flexible formworks are integrally connected with one another by the inner and outer ring binding reinforcing steel bars; the inner braces are fixed to the flexible formworks by reinforcing steel bars, and opposite-pull screws are fixed to the inner and outer ring binding reinforcing steel bars and upright bar binding reinforcing steel bars and are used for supporting the flexible formworks and fixing distances among the flexible formworks; and the support bars comprise upright bars and diagonal braces, and the upright bars and the diagonal braces are fixed together to form right-angled triangles, are fixed to the flexible formworks and jointly support the flexible formworks. The ring beam formwork has the advantages that the ring beam formwork is good in integral surface smoothness effect, convenient to install, wide in application range and good in popularization prospect, a construction period is short, a construction process is reasonable and standard, and the flexible formworks with the bamboo plywood are low in cost.

The invention discloses a construction process of an inner tank top plate in a low temperature storage tank and a construction process of the low temperature storage tank. The construction processes solve the problems that in the prior art, scaffolding needs to be erected for jacking of an inner tank top plate, and assembling of the inner tank top plate needs to be carried out at a high place. Theconstruction processes have the beneficial effects that the construction processes are reasonable, and the construction quality is safe and controllable. According to the scheme, the construction process of the inner tank top plate in the low temperature storage tank adopts a tank body hydraulic test to float the inner tank top plate to the installation position, and then the inner tank top plateis installed to the elevation position; and a lifting part is arranged, the lifting part is connected with an outer tank top plate and the inner tank top plate, and therefore the inner tank top plateis installed to the elevation position.

The invention discloses a method for forming a hole in an elastic clay layer by rotary drilling. The method comprises the steps of when encountering an elastic clay layer during the drilling process, stopping the drilling; after the drilling is stopped, lifting up a drilling bucket, and pouring the concrete into a pile hole; inserting a vibrating rod into the elastic clay in the pile hole and the concrete poured in, vibrating and expanding the elastic clay and the concrete so as to seep concrete into the elastic clay and solidify the elastic clay; drilling a rotary drilling machine into the solidified elastic clay again to carry out the hole forming in a mode of dry working clay taking; and lifting up and taking out the clay; and grasping the solidified elastic clay out so as to form the hole in the elastic clay layer. According to the method, the construction process is reasonable, the operation is convenient and practical and the defect of the traditional rotating drilling hole forming technology is overcome; the benefits in four aspects, namely security, working efficiency, quality and cost, are achieved; and the method can be used both in base piles of various buildings, various structures and bridge engineering with improved bearing ability of the base piles, and used in base pit support campshed so as to realize the double functions of soil baffle and water stop.

The invention discloses a construction process of an aisle perforated plate aluminum plate hang ceiling. The construction process of the aisle perforated plate aluminum plate hang ceiling comprises the following steps of optimizing of a hanging scheme and applying of BIM; optimizing of a plate cut and placing orders in batches; reinforcing of a plate face and packing in batches; deepening design for the second time; protecting and repairing of finished products; and active cooperating of associate units. According to the construction process of the aisle perforated plate aluminum plate hang ceiling, design aiming at an ultra-long aisle and an ultra-wide aisle are conducted specially, and the construction process of the aisle perforated plate aluminum plate hang ceiling has the advantages of being reasonable in construction technology, good in construction effect and high in construction efficiency.

The invention relates to an angle adjusting mechanism for a multifunctional drilling machine. The angle adjusting mechanism comprises a fixing seat, a main connecting frame, a forward leaning cylinder, a first free connecting frame, a second free connecting frame, a left adjusting cylinder, a sliding frame, a right adjusting cylinder, a third free connecting frame, a rotary connecting seat, a variable amplitude cylinder, a rotary cylinder, a first hinge point, a second hinge point, a third hinge point, a fourth hinge point, a fifth hinge point, a sixth hinge point, a seventh hinge point, an eighth hinge point, a ninth hinge point, a tenth hinge point, an eleventh hinge point, a twelfth hinge point, a thirteenth hinge point, a fourteenth hinge point, a fifteenth hinge point, a sixteenth hinge point, a seventeenth hinge point, an eighteenth hinge point, a nineteenth hinge point, a twentieth hinge point, a twenty-first hinge point, a twenty-second hinge point, a twenty-third hinge point, a twenty-fourth hinge point, a twenty-fifth hinge point, a twenty-sixth hinge point, a twenty-seventh hinge point, a twenty-eighth hinge point, a twenty-ninth hinge point, a thirtieth hinge point, a thirty-first hinge point, a base plate and a drill mast, and the first hinge point of the fixing seat is hinged to a cylinder barrel of the rotary cylinder. Construction requirements of various construction angles can be met, and design requirements of the whole machine can be met.

The invention discloses a normal-temperature fast-curing phosphosilicate inorganic adhesive and a preparation method of the adhesive. The normal-temperature fast-curing phosphosilicate inorganic adhesive is characterized by being prepared from the following raw materials in parts by weight: 100 parts of a base material, 85-100 parts of sodium silicate with a modulus of 3.0, 90-100 parts of Portland cement, 30-45 parts of a toughening reinforcing material and 150-200 parts of deionized water. The normal-temperature fast-curing phosphosilicate inorganic adhesive is single-component, and has good adhesive strength, no toxic additive and no VOC emission.

The invention discloses a waste tire rubber powder modified asphalt which is prepared from the following raw materials in parts by weight: 45-55 parts of matrix asphalt, 18-28 parts of waste tire rubber powder, 3-6 parts of polyethylene wax, 8-11 parts of 3-(dodecaalkoxy)-2-hydroxypropyl-N-acetoxy-N,N-dimethylammonium chloride, 4-7 parts of pine tar, 2-5 parts of diallyl disulfide, 1-3 parts of cyclic monosulfide and 5-8 parts of modifier. The modifier is composed of the following raw materials in parts by weight: 23-27 parts of dodecylphosphate, 13-21 parts of stearic acid, 5-10 parts of sodium lignosulfonate, 1-3 parts of butyl amine and 3-7 parts of diimidazoline. The rubber powder modified asphalt mixture obviously lowers the temperature in the production, spreading and rolling process, thereby lowering the energy consumption, reducing the emissions of dense smoke and toxic gas, promoting the large-scale popularization and application of the rubber powder modified asphalt mixture, and being beneficial to promoting the recycling of waste tires. Thus, the waste tire rubber powder modified asphalt solves the problem of severe environmental pollution caused by the traditional waste tire treatment mode composed of piling, landfilling and incineration, and also solves the problems of severe technique pollution and high energy consumption caused by tire devulcanization regeneration.

The invention belongs to the field of road engineering, and particularly relates to a construction method of a large-gap thin overlay. The method sequentially comprises the following steps of preparing raw materials of the large-gap thin overlay and a waterproof bonding layer, stirring the raw materials, preheating, paving and rolling, wherein a temperature of the materials is maintained at 140-195 DEG C in a process from completion of material mixing to paving. The construction process is an effective construction process of a large-gap thin mixture, main technical indexes and durability of the constructed overlay are equivalent to those of a densely-graded thin overlay, meanwhile, remarkable drainage, skid resistance and noise reduction functions are possessed, and the method has important significance in popularization and application of the structure.

The invention relates to an automatic safety monitoring system for an earth and rockfill dam. The system comprises an acquisition device, a monitoring device, a communication unit and a monitoring center, wherein the acquisition device acquires dam safety data according to the set time period, the monitoring device monitors the surface displacement of the dam and integrates existing infiltration line monitoring equipment in the construction period of the dam, and the dam safety data acquired by the acquisition device are transmitted to the monitoring center through the communication unit. The automatic safety monitoring system for the earth and rockfill dam can be provided with multi-level clients such as provinces, cities, counties, reservoirs and the like, and the functions of automatic acquisition, storage, monitoring analysis, early warning and the like of data are planned to be achieved; and the system is mainly used for monitoring surface displacement influencing safety of medium and small earth and rockfill dams and monitoring infiltration lines, and an automatic safety monitoring facility for the dam is designed and installed or an existing automatic monitoring facility is accessed to a platform.

The invention discloses a functional rainwater garden suitable for sponge cities. The functional rainwater garden suitable for the sponge cities comprises multiple stages of baffling areas which are sequentially connected in series and are gradually decreased in height, the multiple stages of baffling areas comprise a first-stage baffling area, a plurality of middle-stage baffling areas and a last-stage baffling area, wherein the first-stage baffling area and the middle-stage baffling areas are sequentially provided with a first water storage layer and a first covering layer from top to bottom, the last-stage baffling area is sequentially provided with a second water storage layer, a second covering layer, a planting soil layer, a medium sand filtering layer, geotechnical cloth, a storageand seepage layer, a gravel drainage layer and a seepage pipe from top to bottom, the first covering layer and the second covering layer contain gravel and construction waste particles, and the storage and seepage layer is made of construction waste. According to the functional rainwater garden suitable for the sponge cities, the construction waste is used for construction of the covering layers and the storage and seepage layer so that the stacking problem of the construction waste can be solved, the disposal cost is saved, environmental pollution is reduced, moreover, a greenbelt can be usedfor stopping and storing rainwater for infiltration on site, then the rainstorm runoff peak value and rainwater drainage are reduced, and underground water recharging is increased.

The invention relates to a temper mill base plate adjusting method. The method comprises the following steps that the surface of a base plate is thoroughly cleaned and treated; an elevation adjusting and assisting tool is manufactured and installed on the base plate; base plate elevation adjustment is carried out, wherein the elevation adjusting and assisting tool installed in the above step and a level gage are used for adjusting the base plate elevation; a center line adjusting and assisting tool is installed nearby diagonal lines of the base plate; vertical and horizontal center lines of the base plate are adjusted, wherein the vertical and horizontal center lines of the base plate are subject to tight alignment through the center line adjusting and assisting tool installed in the above step in cooperation with a theodolite by means of the elevation adjusting and assisting tool; and positioning stopping blocks are welded to the periphery of the base plate, and excursion of the center lines of the base plate in the grouting process and under other conditions is prevented. By means of the temper mill base plate adjusting method, base plate elevation and center line accurate adjustment can be effectively guaranteed; and the temper mill base plate adjusting method is simple and practical in construction step, reasonable in construction process and good in installation quality, the adjusting time can be greatly shortened, the constructon schedual can be greatly accelerated, advancement, scientificity and practicability are achieved, and the high application value is achieved.

The invention discloses an anti-seepage building floor slab post-cast strip structure. The anti-seepage building floor slab post-cast strip structure comprises a building formwork, wherein a second protective layer is arranged at the top end of the building formwork; a waterproof roll is arranged at the top end of the second protective layer; a first protective layer is arranged at the top end of the waterproof roll; a reinforced concrete layer is arranged at the top end of the first protective layer; a water-resistant plate is arranged at the top end of the reinforced concrete layer; an underground layer plate lower steel bar is arranged at the top end of the water-resistant plate; a first I-shaped steel bar support is arranged at the top end of the underground layer plate lower steel bar; a water-stop belt is arranged at the top end of the first I-shaped steel bar support; a second I-shaped steel bar support is arranged at the top end of the water-stop belt; a post-cast strip is poured between the second I-shaped steel bar support and the underground layer plate lower steel bar; closing net formworks are arranged in vertical construction joints on the two sides of the post-cast strip; and an underground layer plate upper steel bar is arranged at the top end of the post-cast strip. The anti-seepage building floor slab post-cast strip structure is reasonable and reliable in construction process, and the later-period seepage risk is reduced.

The invention provides a process for constructing a prefabricated small box girder bridge by half-range construction firstly and then whole construction. The process comprises the step of right half-range bridge construction including a pile foundation 1A, a pier 2A and a pier cover beam 3A; the pier 1A is located above the pile foundation 2A, a pier 1B is located above a pile foundation 2B, a pier cover beam 3B is located above the pile foundation 2B, and the pier cover beam 3B is located above the pile foundation 2B; and an upper main beam 4A is positioned above the pier cover beam 3A. The construction process method is reasonable, left and right half-range construction is conducted, then the left and right half-range construction is connected into a whole, the old bridge is used for keeping pass, a shortcut and a temporary bridge are prevented from being arranged in a riverway, economic investment is saved, and social influence is reduced, namely,without demolishing the old bridge, the old bridge plays the dual role of guaranteeing traffic and temporary access. After the old bridge is dismantled, a half-range bridge is constructed firstly to replace the old bridge to play a role of traffic keeping and a temporary access, the traffic keeping requirement is greatly met, the production and living requirements of residents on the two banks are met, the construction process is more reasonable, and therefore the problems and defects provided by the invention are effectively solved and overcome.

The invention relates to a device and a method for blocking a pipeline under pressure without stopping conveying and moving fire. The device comprises an outer plugging pipe, an inner sealing body, a plugging working barrel and a valve, the outer plugging pipe is used for sleeving a pipeline plugging point in a sealing mode, plugging holes are coaxially formed in the middles of the two sides of the outer plugging pipe respectively, and a connecting pipe perpendicular to the outer plugging pipe is assembled on the periphery of the outer side of one plugging hole in a sealing mode; a hollow sealing bin is assembled on the periphery of the outer side of the other plugging hole in a sealed mode, one valve port of the valve is assembled with a pipe port of the connecting pipe in a sealed mode, the plugging working barrel is detachably assembled at the position of the other valve port of the valve in a sealed mode, and the inner sealing body is arranged in the plugging working barrel. A pushing structure detachably connected with one end of the inner sealing body is arranged in the plugging working barrel, and a sealing structure in sealed connection with the inner wall of a pipeline plugging point is arranged outside the inner sealing body. The method has the advantages that fire-free under-pressure operation is achieved during whole-course construction, and potential safety hazards are reduced.

The invention provides a method for detecting disturbance of follow-up construction on a same-layer instant grouting component. The method comprises the following steps: S1, determining first detection time; s2, a target and a scanning site are arranged on a test floor to carry out 360-degree point cloud scanning detection on the prefabricated part for the first time; s3, determining subsequent detection time of each time; s4, the targets and the scanning sites are arranged on the test floor again, and at least one 360-degree point cloud scanning detection is conducted on the prefabricated part again; s5, performing modeling analysis on the data of the multiple times of point cloud scanning; and S6, judging a detection result. By analyzing the detection result, whether follow-up construction disturbs the same-layer instant grouting component or not can be effectively judged, accordingly, whether the construction process is reasonable or not can be proved, and if the construction process is not reasonable, optimization adjustment can be conducted according to the detection result. The method has important significance for promoting scientific and reasonable construction of the fabricated concrete structure.

This invention provides an installation technology including a tower frame, an umbrella-shed generator, a counterweight bracket, a compressor, a balance rod and a gas transportation pipe, which first of all installs a tower frame, then spans a beam balance rod above the frame, builds a falsework under one end of the generator set up by the beam balance rod and sets a counterweight material at the other end to be diagonal-fixed in all directions, then mounts an umbrella-shed framework and the generator device and puts umbrella cloth on the framework, then removes the falsework and releases the wire rope and remote control is done by spreading the cloth from the center to the edge.