91results about How to "Improve reinforcement strength" patented technology

The invention relates to a method for overcoming tunnel defects, in particular to a method for solving disengagement and water seepage of an internal arch of a tunnel. The method includes the steps that a detection radar is utilized for detecting the disengagement position and the position of a water seepage channel in a damaged tunnel, a grouting hole is obtained by drilling a hole in the surface of a lining of the disengagement position, a grouting pipe is installed in the grouting hole and extends into the disengagement position, a first grouting hole of which the diameter is greater than that of an outlet of the water seepage channel is obtained by drilling a hole in the outlet of the water seepage channel, and a first grouting pipe is arranged in the first grouting hole in a sealed and matched mode; grout is injected into the grouting hole and the first grouting hole, the grout filling situation inside the disengagement position and the water seepage channel is detected in real time through the detection radar, and grouting is stopped when the disengagement position and the water seepage channel are filled with the grout; after the grout is solidified and reaches the final strength, multiple longitudinal slots and multiple transverse slots which extend from the outline to the periphery are formed in the surface of the lining; all the slots are filled with grout, the grout is solidified; the disengagement position and the adjacent portions surrounding the disengagement position are fixed and strengthened, and water accumulated in the water seepage channel is drained.

The invention relates to a wastewater treatment composite filler containing zeolite and pulverized fuel ash, which is prepared by non-sintered technique and has the main raw materials of the zeolite and the pulverized fuel ash. The filler is used for treating organic matter, ammonia nitrogen and nitrate nitrogen in the wastewater, and has excellent performance and easily obtained raw materials with low price; the preparation technique of the filler is simple and free from pollution. Zeolite powder with the fineness of 80 meshes and the pulverized fuel ash reaching national first-grade standard are utilized for preparing porous spherical ceramsite type composite filler by a pelletizer, so that the composite filler has high ammonia nitrogen removing rate and better strength and can well meet the requirements of water quality advanced treatment. The preparation technique is simple and free from pollution and opens up a new approach for the utilization of the zeolite and the pulverized fuel ash, thus having the advantages of energy conservation and emission reduction as well as good environmental and economical benefits since the pulverized fuel ash discharged from a thermal power plant can be recycled.

The invention discloses a reinforcing material of a permeable hydraulic unconsolidated rock. The reinforcing material comprises the following components: low carbon alcohol solution A with a phosphorus source substance as a main solute, wherein, a mineralized coupling agent is dissolved; polyhydroxy low carbon alcohol solution B with a calcium source substance as a main solute, wherein, a hardener and a dispersant are dissolved; and aqueous solution C with ammonium salt as a solute. Penetration operation is performed on the unconsolidated rock by natural flow, spraying, brush coating, soaking or applying methods. The alcohol solution A and the solution B can be mixed and permeated or sequentially permeated respectively, and then the aqueous solution C is permeated after permeation is finished. The reinforcing material has the advantages of easily available raw materials, mild preparation conditions, simple use method, good compatibility with the rock, acid corrosion resistance, obvious reinforcing effect, water soak resistance, no pollution and environmental protection.

The invention relates to a method for utilizing a combined structure to conduct shield tunnel strengthening. The method comprises the following steps that steel bar planting is conducted on the inner surfaces of tunnel original duct pieces; steel bar nets are arranged at the inner sides of the tunnel original duct pieces, and the steel bar nets are fixed to the planted steel bars; steel plates matched with the shapes of the tunnel original duct pieces of the tunnel are produced, and cotters are welded at the outer sides of the steel plates; the steel plates are closed to the tunnel original duct pieces, concrete is poured between the steel plates and the tunnel original duct pieces, the concrete fixes the steel bar nets to the inside, and the concrete is cured to a designed strength. Compared with the prior art, the combined structure including the steel plates, the steel bar nets, the planted steel bars, cotters and the concrete is adopted to shield tunnel strengthening for the first time. The method for utilizing the combined structure to conduct shield tunnel strengthening has the advantages that the durability is good, material drawing is convenient, construction is rapid, the economic benefit is good, the strengthening degree is high, the strengthening rigidity is large, and fissure controlling is efficient.

The invention discloses a construction method of demolition and safety force transfer for a tunnel initial support deformation clearance interfering section. The construction method comprises the steps that 1, grouting reinforcement of an arch wall is performed, specifically, an arch wall of the tunnel initial support deformation clearance interfering section is subjected to grouting reinforcement; 2, construction section division is performed, specifically, the tunnel initial support deformation clearance interfering section is divided into a plurality of construction sections from the rear to the front in the extension direction of a tunnel, and the construction sections comprises first-stage construction sections or second-stage construction sections and the first-stage construction sections and the second-stage construction sections are distributed in a staggered mode; 3, temporary concrete lining construction is performed, specifically, a temporary concrete lining is constructed in each second-stage construction section; 4, the construction of the demolition of initial supports and the safety force transfer of the first-stage construction sections is performed; and 5, the construction of the demolition of the initial supports and the safety force transfer of the second-stage construction sections is performed. According to the construction method of the demolition and thesafety force transfer for the tunnel initial support deformation clearance interfering section, surface support is realized by temporary support of the temporary concrete linings, the reinforcement strength is large, the safety risk is greatly reduced, and multiple working faces can be synchronously subjected to the construction of the demolition of the initial supports and the safety force transfer; and the construction progress is great and the construction process is safe and reliable.

The invention provides a liquid water hard soil ancient site reinforcement material. A calcium source solution and a silicon source solution are prepared by calcium compound, active silicon dioxide, an ethanol solvent and a surface active agent; the method for reinforcing the oil ancient site by adopting the reinforcement material comprises the following steps that: the calcium source solution and the silicon source solution permeate the soil body, and then the ethanol solvent is displaced by water to cause the water rigidity reaction so that the cementation component such as calcium silicate is generated and the reinforcement of the soil ancient site is realized. The soil ancient site reinforcement material has raw materials available easily, moderate preparation conditions, simple and convenient use method, evident reinforcement effect, can stand the immersion of water, has good compatibility with the soil body and does not pollute the environment.

The invention relates to a reinforcement anchor rod which comprises an anchor rod body, wherein a thread tightly meshed with a rock mass is formed on the outer side surface of the anchor rod body; an axial grouting channel for grouting slurry and enabling the slurry to flow into a drilled hole of the drilled rock mass is formed in the anchor rod body; a stop plug for stopping the slurry in the drilled hole is arranged on the anchor rod body. The invention also relates to a rock mass reinforcement method applying the anchor rod. The rock mass reinforcement method comprises the steps of respectively punching the anchor rods into intersections of cracks of the rock mass and the tail ends of all the cracks, extracting air from the anchor rods at the intersections of the cracks, grouting the slurry into anchor rods at the tail ends of the cracks, and respectively grouting the slurry into rock holes in which the anchor rod bodies are positioned after the cracks are filled with the slurry so as to reinforce the whole rock mass into a whole.

The invention provides a weathered bone cultural relic reinforcing protection method. The weathered bone cultural relic reinforcing protection method is characterized in that according to animal bone growth principles, a calcium resource and a phosphor source are introduced into weathered bone cultural relic and undergo a mineralization reaction at a normal temperature to produce a porous crosslinked apatite reinforcing phase in the weathered bone cultural relic. The reinforcing phase can realize re-consolidating of weathered and loose bone cultural relic and produces good protection effects.

The invention discloses an efficient flame retardant cable sheath material which comprises the following raw materials in parts by weight: 80-100 parts of methyl vinyl silicone rubber, 16-23 parts of fumed silica, 11-17 parts of precipitated white carbon black, 1.3-2.2 parts of octamethylcyclotetrasiloxane, 30-40 parts of diatomite, 2-3 parts of titanium dioxide, 1.5-2.5 parts of titanium dioxide, 0.13-0.25 part of ferric oxide, 0.3-1 part of peroxidized bi(2, 4-dicholorbenzoyl), 0.5-0.9 part of 2, 5-dimethyl-2, 5-bi(tertiary butyl peroxy) hexane, 0.0015-0.002 part of platinum flame retardant, 15-20 parts of aluminum hydroxide, 20-30 parts of magnesium hydrate, 1-1.5 parts of dioctahedron alkaline aluminum silicate and 0.4-0.7 part of trioctahedron alkaline aluminum silicate. The efficient flame retardant cable sheath material disclosed by the invention is free from pollution, excellent in flame retardant effect and good in high-temperature self-extinguishing effect, and has certain strength and supporting capacity after combustion.

The invention relates to an AC33/nano calcium hydroxide containing organic inorganic composite material for reinforcing ancient murals and a reinforcing method. AC33 and nano calcium hydroxide are dissolved in an ethyl acetate solution. The preparation method is very simple and time-saving. The prepared mixed solution is very stable and will not precipitate for half a year, and the cost is low. The result of a mural reinforcing test shows that the composite material can play a mural reinforcing effect within 12 hours, nano calcium hydroxide is carbonized into calcium carbonate, a film formed by AC33 is broken down, and the influence of water steam exchange between murals and the environment is small. The shortages of using AC33 or nano calcium hydroxide to reinforcing a mural are overcome.Compared with the reinforcing effect of AC33 or nano calcium hydroxide, the reinforcing strength is improved by using AC33 and nano calcium hydroxide together. The composite material has a great industrial production prospect and can be used to reinforce other cultural relics such as stone relics, and the like.

The invention relates to a preparation method and a reinforcement method of a crispy powder ceramic culture relic reinforcement material. The preparation method comprises the following steps: mixing ethyl orthosilicate and hydroxyl terminated polydimethylsiloxane, and stirring for 12 to 24 hours; continuously stirring an obtained mixture for more than 5 minutes under the effect of a dibutyltin dilaurate catalyst so as to obtain the crispy powder ceramic culture relic reinforcement material.

The invention relates to a composite high-polymer coated fabric and a preparation method thereof. The composite high-polymer coated fabric comprises a base layer of the fabric and a composite high-polymer coating attached to at least one face of the base layer of the fabric; the composite high-polymer coated fabric further comprises a base melt layer which is 40-150 micrometers; the base melt layer refers to a composite structure formed by inserting a part of composite high-polymer coating into the base layer of the fabric during production; the thickness of the composite high-polymer coatingranges from 100 micrometers to 500 micrometers. By selection of the fabric base, selection of formula of the composite high-polymer coating and regulation of processing parameter, generation of the base melt layer is achieved, and thus, the product is superior to the prior art, in terms of fitting strength, hand feeling, fastness to yarn binding, and the like.

The invention provides a construction method of an anti-pull carrier pile. The construction method comprises the steps of (1) sinking a pile casing to a set depth; (2) filling a cement and sand mixture into the pile casing, and tampering the filled cement and sand mixture through a hammer; (3) repeating filling and tampering operation in the step (2), and reinforcing and compacting a soil body a certain depth below the pile tip within a certain range; (4) controlling the reinforcement and compactness degree with the three-tampering penetration degree or the filling amount as the standards andforming a carrier at the pile end; (5) continuously hammering the carrier through the hammer to form a tampering hole, or continuously hammering the carrier through the hammer to form the tampering hole and then pressing down the pile casing to follow up; (6) stopping hammering when the tampering hole in the carrier reaches up to a certain depth; (7) sinking a reinforcement cage or an anchor cablein the pile casing to enable the bottom end of the reinforcement cage or the anchor cable to go into the tampering hole of the carrier; and (8) filling concrete or cement mortar into the pile casing,and then pulling out the pile casing to form the pile.

The invention discloses a novel protection material suitable for a dinosaur fossil and a preparation method of the novel protection material. The material is compounded from acrylic polymer and modified nanosilicon dioxide. According to the method, an emulsion polymerization manner is adopted, methyl methacrylate, butyl methacrylate, methyl acrylate and crylic acid are taken as main monomers for polymerization, a modified nano SiO2 solution is added before or after the polymerization reaction, and the mixture is stirred and blended uniformly. The preparation process is simple, the raw materials are easily available, the cost is low, the method is environmentally friendly, and the industrial production is easily implemented. The novel protection material has an excellent chemical stability, a film formed by the novel protection material has the advantages of excellent corrosion resistance, weather resistance, adhesiveness and heat stability, the original appearance of the fossil is kept, the efflorescence of the dinosaur fossil caused by the environment factor is avoided, and the service life of the fossil is prolonged.

The invention relates to a repairing method for tunnel defects. The repairing method includes the steps that detection radar is used for detecting the position of a cavity and the position of a passage where water burst happens in a defective tunnel; drilling is performed on the surface of a lining at the cavity position to obtain a grouting hole, a grouting pipe is installed and extends into the cavity position, drilling is performed on an outlet of the passage where water burst happens to obtain a first grouting hole of which the diameter is larger than that of the outlet of the passage where water burst happens, and a first grouting pipe is matched inside the first grouting hole in a sealed mode; grouting is performed on the first grouting hole and the grouting hole, the detection radar is used for detecting grout filling conditions inside the cavity and the passage where water burst happens in real time, and when the cavity and the passage where water burst happens are filled with grout, grouting is stopped; after the grout solidifies and reaches final strength, multiple longitudinal grooves and transverse grooves formed by extending outlines around are formed in the surface of the lining; all the grooves are filled with the grout, and the grout solidifies; the cavity and adjacent parts around the cavity are fixed and strengthened, and accumulated water in the passage where water burst happens are drained.

The invention discloses a novel reinforcing device for a reinforced concrete bridge and a bridge deck. The novel reinforcing device comprises a U-shaped steel hoop part used for tightening the reinforced concrete bridge from the bottom up, and two bolt parts which are fixedly embedded below the bridge deck and respectively connected with two ends of the steel hoop part, wherein the bolt parts are locked with the steel hoop part through the support nuts. Due to the adoption of the technical scheme, the novel reinforcing device can pre-tighten and lock together the reinforced concrete bridge and the bridge deck through the connecting of the steel hoop part and the bolt parts in a matched manner. Compared with the prior art, the novel reinforcing device has the advantages that a stress lagging effect of a traditional device can be effectively avoided, maintains the effectiveness of the anchoring, ensures reinforcing effect, improves the shear strength of the reinforced concrete bridge, is simple in structure and easy to implement, and strong in comprehensive practicability. The invention also provides a construction method for the novel reinforcing device, which is clear and simple in procedures and can improve the construction efficiency of the novel reinforcing device.

The invention belongs to technical field of power line insulation resistance testing and particularly to a power line insulation resistance test method and a tester insulation support. It requires at least two testers to operate the test method, one tester observes the insulation support and supports a test instrument, and the other tester enables an instrument probe connected with an instrument wire to be in contact with a fault test point by using an insulated operating rod. Further, the present invention also provides a power line insulation resistance tester insulation support. The method solves a problem that a power overhaul worker has a high electric shock risk in the prior art when searching out fault points and performing an insulation resistance test at the field because an operating site is full of water, muddy, and poor in insulation condition and safety measures, such as connecting a ground wire to the line and switching on a ground knife switch, cannot be achieved. The method has technical effects of preventing electric shock of workers and the instrument operator, protecting personal safety in operation, and reinforcing footsteps.

The invention relates to a foundation treatment method, in particular to a foundation dynamic compaction and replacement combined dynamic compaction reinforced construction method. The method comprises the steps that a construction area is dug, wherein at the bottom elevation of -0.9 m of a box culvert foundation, and aiming at improving the bearing force of a foundation obtained after box culvert foundation dynamic compaction treatment, the original ground is dug for 2.5 m, and then construction of dynamic compaction is started; sloping is carried out on the gradients of the two sides of a foundation trench according to the proportion of 1:1.5; according to the geologic features of a backfill sand land area of an iron and steel base, a 4,000KN.m dynamic compaction and replacement process is adopted for reinforcing a deep soil layer of 3 m to 9 m, and the foundation bearing force of the deep soil layer is improved; after dynamic compaction and replacement are completed, 3,000KN.m dynamic compaction is used for reinforcement, a deep soil layer of 0-6 m is reinforced, the foundation bearing force of the shallow soil layer is improved, the strength of a substratum soil layer of 0-2.3 m on the bottom face of a box culvert is improved, and therefore soil is reinforced in the vertical direction; flower arrangement is adopted in pile point arrangement, that is, dynamic compaction reinforcement is carried out between compaction points obtained after dynamic compaction and replacement, soil between piles is transversely compact, and therefore the foundation bearing force of the soil between the piles is improved, and the soil is reinforced in the transverse direction. As for large-area foundation treatment, construction speed is high, and limitation is small.

The invention relates to the field of construction, and specifically discloses a building reinforcement structure, which comprises: a building base; an interface agent layer, which is covered on the surface of the building base; and a first polymer mortar layer, which is covered on the interface agent layer; A composite grid, partially embedded in the first polymer mortar layer; and a second polymer mortar layer, overlying the first polymer mortar layer and the composite grid; the composite grid includes a fiber grid skeleton and attached to it glue layer. The reinforcement structure of the building adopts the method of sandwiching fiber grids between two layers of polymer mortar, and the thickness of the repair layer is small, which improves the utilization rate of structural space; and can also significantly enhance the reinforcement strength. In addition, the composite grille is used to make the fiber grille and the polymer mortar layer have greater adhesion, forming a good synergistic effect; improving the binding force of the fiber grille and the main material, further improving the building reinforcement structure. Reinforced performance. The invention also discloses a building reinforcement method.

The invention discloses a soft soil subgrade reinforcing method. The method comprises the following steps: S1, leveling land in a to-be-treated preloading zone; S2, laying a sand cushion, arranging drain boards and a booster pipe into soil mass, embedding a drainage pipeline, connecting the drainage pipeline with a water suction pump and connecting the booster pipe with a booster pump; S3, embedding vertical vacuum pipes and a horizontal vacuum pipe in the sand cushion, connecting the horizontal vacuum pipe with a vacuum pump, and staggering the vertical vacuum pipes and the horizontal vacuumpipe with the drain boards; S4, laying a seal film; S5, digging a seal ditch along the peripheral outer edge of the preloading zone; S6, starting the vacuum pump for vacuum preloading consolidation operation, and then starting the water suction pump when water in the preloading zone enters the sand cushion; S7, starting the booster pump and stopping the booster pump 15-20 min before vacuum preloading consolidation is finished; S8, removing a preloading device and performing grouting for sealing; S9, performing compaction with a press. Soft soil reinforcing strength can be increased effectively.

The invention discloses a rock cross-cut coal uncovering method with horizontal jet grouting piles for reinforcement. The method is applicable to medium-thickness coal seams with outburst risks and includes the steps: stopping tunneling when a minimum normal distance between a working face of coal uncovering and an uncovered coal seam is smaller than 7m; using a drilling rig for drilling holes, penetrating a coal seam roof, in the working face of coal uncovering; connecting with a gas extraction pipe for gas extraction; when gas content and gas pressure are reduced to permitted ranges, using a jet grouting pile machine for realizing horizontal jet grouting of each drill hole to form firm horizontal jet grouting piles in the drill holes, so that coal seam reinforcement range is widened while coal seam reinforcement strength is improved greatly, and coal seam outburst risks are reduced; after the horizontal jet grouting piles are thoroughly solidified, continuing to tunnel until a whole coal uncovering process is finished. The rock cross-cut coal uncovering method with the horizontal jet grouting piles for reinforcement has the advantages of safety and quickness in completion of coal uncovering operations and reduction of input of manpower, material resources and financial resources.

The invention relates to a surface-layer fast solidification method for a soft foundation with dredger soil. The surface-layer fast solidification method includes steps of delimiting a construction region with the certain area and erecting a safe construction channel on the periphery of the construction region; laying two layers of non-woven fabrics on a soil surface in the construction region; building a shallow-layer water drainage plate; then distributing filter tubes among the non-woven fabrics to be used as water drainage channels and connecting submersible type vacuum pumps onto the filter tubes to realize vacuum water drainage; laying plastic membranes on the tops of the upper-layer non-woven fabrics to be used as air closure membranes; observing settlement on the membranes in a vacuum water drainage process and draining water accumulated on the membranes in time; using vibrators on the air closure membranes in good time to increase vibration load in the middle of a water drainage solidification period, and wrapping non-woven fabrics on the vibrators to realize membrane protection during vibration; and completing surface-layer solidification after bearing capacity of the solidified soil reaches 50Kpa or meets designed requirements. By the aid of the method, a work period can be shortened, work procedures such as work cushioning and the like are omitted, waste recovery of the soil is realized, solidification speed is fast, an effect is good, and assembly line production can be realized.

The invention discloses a detachable integrated ceiling lamp assembly type reinforcing structure. The detachable integrated ceiling lamp assembly type reinforcing structure comprises a plate body, wherein two fixing plates are symmetrically and fixedly connected to the upper surface of the plate body, sliding rails are welded to the tops of the two fixing plates, square pipes are connected to theouter side walls of the two sliding rails in a sliding mode, four connecting plates b are symmetrically welded to the upper surfaces of the two square pipes, four threaded holes b are symmetrically formed in the upper surfaces of the four connecting plates b, and a disc is welded to the upper surface of the plate body. According to the detachable integrated ceiling lamp assembly type reinforcing structure, two lead screws can be driven to rotate by rotating two shells before installation, the lead screws can drive the two square pipes to slide in the sliding rails after rotating, so that the distance between the square pipes is adjusted to be matched with the distance between the installation positions of a ceiling lamp, after adjustment, fixing is carried out through threaded holes a in the disc and the threaded holes b in the four connecting plates b, and two top installation fixing structures are provided through the disc and the connecting plates b so as to enhance the stability and the reinforcing strength of the top fixing of the lamp.