40results about How to "Uniform reinforcement" patented technology

The invention discloses a test device for the demoulding microbial-grouting reinforcing silt and a method thereof. The device comprises a GDS pressure controller, a slurry storage device, a reaction device and a filtrate collection bottle. The GDS pressure controller is used for providing the pressure to control the grouting speed precisely, so that serous fluid is injected into a soil sample slowly and uniformly. A sample preparation barrel in the reaction device is formed by butting joint of two organic glass tubes, thereby ensuring the airtightness of the device and realizing demoulding conveniently and completely. According to the invention, the silt is reinforced by using the microbial mineralization technology; and because of stepwise bacterial liquid injection and cement liquid, blocking of the grouting hole caused by direct mixing of the cement liquid and bacterial liquid is avoided. Meanwhile, with the bottom-to-top grouting mode, the grouting liquid can be uniformly distributed in the soil sample to ensure the high uniformity and integrity of the solidification of the soil sample.

The invention relates to a method for efficiently absorbing water and solidifying under films through a controllable vacuum negative pressure well, or a CPC method for short. The method comprises the first step of longitudinal pipeline arranging, the second step of horizontal pipeline arranging, the third step of negative-pressure sealing well assembling, the fourth step of negative-pressure sealing well arranging, the fifth step of sealing film arranging and the sixth step of water draining and strengthening processing. Because a processing system composed of the controllable negative-pressure sealing well, longitudinal pipelines, horizontal pipelines and multiple layers of sealing films is adopted, the size of an area capable of being processed through a single suit of processing system can reach 5000-15000 square meters. The method for efficiently absorbing water and solidifying under the films through the controllable vacuum negative pressure well is high in water draining efficiency, and can greatly reduce electric quantity consumption of a unit area and improve pipeline water smoothness and sealing system stability.

The invention belongs to the technical field of steel pipe machining equipment, and particularly relates to a large steel pipe inner opening welding seam polishing machine. The large steel pipe inner opening welding seam polishing machine comprises a tensioning component, a rotating component and a polishing component. According to the large steel pipe inner opening welding seam polishing machine, after the polishing machine is fixed into a large steel pipe through the tensioning component, the rotating component drives the polishing component to rotate, the polishing component rotates around the axis of the large steel pipe, then the polishing component polishes away redundant metal at the weld joint while rotating, so that the surplus height of the weld joint meets the technical requirement; the polishing machine solves the problems that the conventional polishing mostly adopts manual polishing, the welding seam polishing degree cannot be controlled, and excessive local polishing and insufficient local polishing are easily caused; moreover, the polishing machine avoids the situation that the welding seam strength is reduced due to excessive local polishing, further guarantees the welding seam strength, and avoids the situation that the welding seam is too large in local surplus reinforcement due to insufficient local polishing, therefore, the frictional resistance of the medium during flowing is reduced, and the conveying energy consumption is reduced; and manual polishing is not needed, so that the physical strength expenditure of people is saved, and the labor cost is further saved.

The invention discloses a covering type soil filled and soft soil stratum segmented reinforcing device and method. A covering type segmented grouting tube comprises a slurry delivery tube connected with a pressure-adjustable grouting machine; the slurry delivery tube is connected with a grouting core tube via a joint; the bottom end of the grouting core tube is closed while the top end of the grouting core tube is connected with the slurry delivery tube; a segmented grouting steel tube sleeves the outside of the grouting core tube; a plurality of internal grouting holes are uniformly formed in a bottom region of the grouting core tube; a plurality of slurry stopping rings are correspondingly arranged in the segmented grouting tube according to layer thicknesses of soil layers; a rubber slurry stopping plug and a nut are arranged on the top of the segmented grouting tube; and grouting plum blossom holes are uniformly formed in the surface of a tube body of an external grouting tube at intervals. A soil layer on the surface layer is reinforced at first to reinforce and seal a gap between the grouting tube and a hole wall so as to solve the problem that in a lower end deep and thick soft soil reinforcing process, slurry does not leak out from an orifice section and reinforcement in the depth direction is poor, and covering soil reinforcement and deep reinforcement are finished at one step by the same device.

The invention discloses a strengthening electro-osmosis method and system used for reinforcing a soft clay foundation. The method comprises the following steps that electrodes are vertically and horizontally driven into the soft clay foundation, by forming a horizontal electric field between the vertical electrodes and a vertical electric field between the horizontal electrodes, water in a soil body is transferred into a shallow soil body in a cathode area, and discharged in a vacuum-pumping way, and in the process that the vertical anodes are electrified, spraying humidification is conducted.By means of the method, the water converged at the cathodes can be effectively discharged out of the soil body, the service life of the electrodes is prolonged, the problems are solved that in a conventional electro-osmosis method, the soil body is not uniformly reinforced, and the anodes are corroded seriously, the operation is simple, the efficiency is high, and the cost is low.

The invention discloses an island building structure for across-riverway bridge construction. The island building structure comprises a footstone, a cofferdam is fixedly connected to the edge of the top of the footstone, a base is fixedly connected to the top of the footstone, a main pier is fixedly connected to the midpoint of the top of the base, a clay wall is fixedly connected to the surface of the main pier, the surface of the clay wall is fixedly connected with a reinforcing cage protective layer, and the bottom of the clay wall and the bottom of the reinforcing cage protective layer areboth fixedly connected with the top of the base. Through cooperation of the cofferdam, the base, the main pier, the clay wall, the reinforcing cage protective layer, a pile cap, a first connecting block, a hollow column, a chute, a slider, a threaded rod, a threaded sleeve, a connecting rod, an annular groove, a limiting block and a second connecting block, the high-stability island building structure for across-riverway bridge construction is realized; and through adjustment of a connecting device, the outward prestressing force of the cofferdam can be increased, the structure is firmer during outside pressure resisting, and the adaptability is higher.

The invention provides a high-pressure jet grouting pile construction method which achieves the technical effects of reducing construction cost and further adapting to the construction environment ofa silt geological layer by improving an existing high-pressure jet grouting pile construction technology. The method comprises the following steps that a drilling machine is installed, specifically, the drilling machine is arranged on a set hole position, inclination of a jet grouting pipe is less than or equal to 1.5%, and the distance between an injection hole and a high-pressure grouting pump is less than or equal to 50 m; drilling is carried out, specifically, the deviation between a drilling position and design is less than or equal to 50 mm, the drill bit inclination is smaller than or equal to 1.5%, and a core barrel is pulled out after drilling; pipe inserting is carried out, specifically, the jet grouting pipe is inserted into the stratum by a preset depth; spraying and grouting are carried out, specifically, spraying and grouting are carried out from bottom to top, and after rotating and spraying are carried out by 1 min at the bottom of a pile, rotation, lifting and sprayingare simultaneously carried out; the grouting pipe is lifted up, specifically, when the grouting pipe is lifted, a drilling rod is synchronously and continuously rotated without interruption, and theslurry discharge amount is between 10% and 20%; the overlapping length of subsection lifting of the grouting pipe is greater than or equal to 100 mm; washing is carried out, specifically, the groutingpipe and an operation machine are washed until no residual cement slurry exists; and equipment is moved, specifically, relevant equipment such as the drilling machine is moved to a new hole positionto carry out next pile construction.

The invention relates to the technical field of security door manufacturing, and aims to provide a process for manufacturing an intelligent security door. The process includes the following steps thatcutting is conducted, and a plate, an electrolytic plate and a door frame are cut; bending is carried out, after the dimensions of the cut plate, the electrolytic plate and the door frame are confirmed to be correct, lines are drawn respectively on the plate, the electrolytic plate and the door frame, and the plate, the electrolytic plate and the door frame are bent; combination is carried out, after bending is completed, punching and cutting operations are carried out on the plate, the electrolytic plate and the door frame respectively, then a reinforcing plate is pre-buried and welded on the electrolytic plate, and after combined welding is conducted on the electrolytic plate welded with the reinforcing plate and the cut plate, the plate is filled with fire-proof materials; and accessory assembling is carried out, polishing and burr removal operation is conducted on the combined plate, accessories are assembled after the lines are drawn and holes are drilled according to the requirements, and debugging is conducted after assembling. The effect of reducing the cost of security doors with special security requirements for banks is realized.

The invention discloses a test device and method for demoulding microorganism grouting reinforcement silt. The device consists of four parts: a GDS pressure controller, a slurry storage device, a reaction device and a filtrate collection bottle. The pressure is provided by the GDS pressure controller, and the grouting speed is precisely controlled, so that the grout is slowly and evenly injected into the soil sample. The sample preparation barrel in the reaction device is made of two plexiglass tubes, which can not only ensure the sealing of the device, but also facilitate the complete demoulding. The invention utilizes the microbial mineralization technology to solidify the silt, adopts the method of step-by-step injection of the bacteria solution and the cementing solution, and preferably avoids the blockage of the grouting port caused by the direct mixing of the cementing solution and the bacteria solution. At the same time, the method of grouting from bottom to top is adopted, so that the grouting liquid can be evenly distributed in the soil sample, ensuring the uniformity and integrity of the solidification of the soil sample.

A microbial treatment method for lead- and cadmium-contaminated soil foundations, which can successively realize environmental restoration and reinforcement of lead- and cadmium-contaminated soil foundations within one construction period, and is characterized in that the steps of the method are as follows: a. The leaching amount of lead and cadmium ions in the soil, and then drill holes on the stratum 1 to be treated and arrange the grouting pipe 2; b. prepare the microbial growth-promoting liquid 3, and pour it into the stratum 1 to be treated through the grouting pump 4 every 5 days Inject the microbial growth-promoting liquid 3; c. detect the urease activity of the soil in the stratum 1 to be treated, and stop injecting the microbial growth-promoting liquid 3 into the stratum 1 to be treated when the urease activity is greater than 80 mg / g; d. prepare the cementing solution 5, Inject the cementing solution 5 into the stratum 1 to be treated through the grouting pump 4 every 2 days; e. After the site reaches the predetermined number of grouting times, check the strength of the foundation and the leaching amount of lead and cadmium ions in the soil, and pull out after meeting the requirements For all grouting pipes 2, if the requirements are not met, repeat step d until the requirements are met.

The invention discloses a one-dimensional microbe grouting reinforcing silt test device and method. The device comprises a model groove, an air pressure device, a consolidating fluid bottle, a pressure slurry supply device, a recovery barrel, a water gas separation device and a vacuum pump, wherein the top of the model groove is connected with the consolidating fluid bottle through a hose; the consolidating fluid bottle is connected with the air pressure device through a hose; the bottom of the model groove is connected with the recovery barrel and the water gas separation device through hoses; the water gas separation device is connected with the vacuum pump; the lower end inside the model groove is provided with a separation plate with a plurality of holes; filter paper is laid on the separation plate. The upper pressing and lower suction method is used for grouting the silt; the upper part of the model groove is a pressure-resistant steel cover; a glass plate with holes is arranged at the lower part of the model groove; the filter paper is put on the glass plate with holes; the vacuum pressure applied under the glass plate with the holes can be uniformly distributed on the lower surface of the silt body. The device is used for performing grouting reinforcing test on the silt; various microbe reinforcing silt effect tests using various bacteria solutions under different conditions can be set.

The invention discloses a covering type soil filled and soft soil stratum segmented reinforcing device and method. A covering type segmented grouting tube comprises a slurry delivery tube connected with a pressure-adjustable grouting machine; the slurry delivery tube is connected with a grouting core tube via a joint; the bottom end of the grouting core tube is closed while the top end of the grouting core tube is connected with the slurry delivery tube; a segmented grouting steel tube sleeves the outside of the grouting core tube; a plurality of internal grouting holes are uniformly formed in a bottom region of the grouting core tube; a plurality of slurry stopping rings are correspondingly arranged in the segmented grouting tube according to layer thicknesses of soil layers; a rubber slurry stopping plug and a nut are arranged on the top of the segmented grouting tube; and grouting plum blossom holes are uniformly formed in the surface of a tube body of an external grouting tube at intervals. A soil layer on the surface layer is reinforced at first to reinforce and seal a gap between the grouting tube and a hole wall so as to solve the problem that in a lower end deep and thick soft soil reinforcing process, slurry does not leak out from an orifice section and reinforcement in the depth direction is poor, and covering soil reinforcement and deep reinforcement are finished at one step by the same device.

The invention discloses a construction method for existing dyke soft foundation electrochemical treatment and belongs to the technical field of dyke soft foundation reinforcing engineering. A chemical solution is poured into the peripheries of electrodes to increase the contents of a gel object (Fe(OH)3) and a sediment (Mg(OH)2) for an electrochemical reaction and improve the reinforcing effect of a soil body and shorten the reinforcing time. By means of the combination of the electrochemical solution and the electrochemical reaction, the distance between two rows of electrodes can be increased so as to save materials for experiments. Grooves are reserved in the peripheries of the electrodes, the chemical solution is conveniently poured into the soil body on the peripheries of the electrodes in the construction process, and the concentration of the chemical solution in the soil body on the peripheries of the electrodes is conveniently measured. The positive electrodes and the negative electrodes of a power source are converted and the chemical solution is replaced, so that the electrochemical reaction of the electrodes in the soil body is more sufficient, the reinforcing range is wide, and reinforcing effect is more uniform. The construction method for the existing dyke soft foundation electrochemical treatment is simple in implementation process, high in operability, obvious in economic benefits and remarkable in treatment effect.

The invention relates to a bottom sealing concrete construction structure for water seepage cofferdam design. The bottom sealing concrete construction structure comprises a cofferdam body, wherein the cofferdam body is a cubic steel sleeve box which is vertically arranged; a concrete bottom sealing layer is poured at the lower end of the inner side of the cubic steel sleeve box; an anti-seepage mechanism is arranged at the lower end of the cofferdam body; the anti-seepage mechanism comprises an anti-seepage coiled material, an anti-seepage frame and an anti-seepage water stop plate; the anti-seepage coiled material is arranged in the circumferential direction of the inner side wall of the lower end of the cubic steel sleeve box; the anti-seepage frame comprises a fixing part, a connecting part and a frame body; the fixing part is fixedly arranged on the inner side wall of the cubic steel sleeve box; the connecting part is detachably and fixedly arranged on the lower side of the fixing part; the anti-seepage frame is fixedly arranged on the lower side of the connecting part; the anti-seepage water stop plate is fixedly arranged on the frame body; and the top surface of the concrete bottom sealing layer is higher than the anti-seepage water stop plate and lower than the fixing part. The bottom sealing concrete construction structure has the effects that the fixing part and the connecting part are separated, so that the cofferdam body is separated from the connecting part, and the cofferdam body can be conveniently disassembled.

The invention discloses an advancing type localized double-liquid grouting device and a construction method. The device comprises a hole sealing grouting opening, an auxiliary sleeve and a grouting pipe. The grouting pipe is detachably connected to the hole sealing grouting opening. The grouting pipe with the hole sealing grouting opening is inserted in the auxiliary sleeve. The auxiliary sleeve is connected with the hole sealing grouting opening through a flange. The length of the grouting pipe is larger than that of the auxiliary sleeve so that deep localized grouting can be achieved. The advancing type localized double-liquid grouting device and the construction method have the advantages that the grouting pipe is simple in structure and suitable for being manufactured on site; the grouting device and the technological process are simple, and operation is easy and convenient; the price of PVC pipes is relatively low and construction cost is greatly saved; domain controlled grouting can be achieved, it is ensured that a stratum is uniformly reinforced, no blind point exits, and disasters are avoided; grouting can be repeatedly conducted, point selecting and hole opening are prevented from being conducted again, the construction period is shortened, and economic benefits are high; the application range is wide, and the advancing type localized double-liquid grouting device and the construction method are suitable for all engineering type soft stratums needing to be reinforced.

The invention discloses a test device for reinforcing a soil body based on an MICP technology and a use method. The device is composed of a sample preparation mold and a liquid injection auxiliary system. The sample preparation mold comprises a semicircular three-dimensional thin-wall groove cylinder, a thin-wall round cover with slotted edges, an octagonal prism supporting rod and a solid anti-seepage strip; the liquid injection auxiliary system comprises a device base, a three-dimensional hollow side plate, a side plate connecting and fixing plate, a movable hollow upper sealing cover and a drawer type waste liquid collecting bin. When a microorganism solidification aeolian sand sample is prepared, aeolian sand is filled into a sample preparation mold, thin-wall round covers with slotted edges are buckled at the two ends, a solid anti-seepage strip is embedded into the slotted position of the mold, the sample preparation mold is fixed in a liquid injection auxiliary system through an octagonal prism supporting rod, and after liquid is circulated through a peristaltic pump, the sample preparation mold is filled with the solid anti-seepage strip. And the liquid is conveyed to the opening in the groove through the liquid injection hose for injection. The method has the characteristics that the material consumption is reduced, the phenomenon of non-uniform pouring caused by solidification of part of soil is avoided, and the pouring efficiency and the reinforcing effect can be obviously improved.

The invention discloses a steel structure plane reinforcing structure, and relates to a reinforcing device. The steel structure plane reinforcing structure comprises a chassis, a box body is fixedly connected above the chassis, a shaft sleeve is fixedly connected below the middle part of the chassis, the shaft sleeve is rotatably connected with a rotating shaft, and the bottom end of the rotatingshaft is fixedly connected with a control turntable; the steel structure plane reinforcing structure is characterized in that the top end of the rotating shaft is fixedly connected with a driving bevel gear; limiting plates are fixedly connected to the upper portion of the middle of the side wall of the box body in a front-back symmetry manner; plate grooves are connected with the limiting platesin a sliding manner; and a triangular supporting plate is fixedly connected to the upper portion of a sliding block, an air extractor is fixedly connected to the middle of the upper portion of the triangular supporting plate, and a suction cup is arranged at the air extraction end of the air extractor. Compared with a traditional reinforcing structure, the reinforcing structure has the advantagesthat the reinforcing range of the reinforcing structure can be adjusted, the reinforcing effect of the reinforcing structure is better, reinforcing is more uniform, and the reinforcing structure is simple in structure, convenient to operate and good in use experience.

This application relates to a concrete construction structure for seepage cofferdam design, including a cofferdam body. The cofferdam body is a vertically arranged cubic steel casing, and a concrete bottom sealing layer is poured at the lower end of the inner side of the cubic steel casing. The lower end of the cofferdam body is provided with an anti-seepage mechanism. The anti-seepage mechanism includes an anti-seepage coil, an anti-seepage frame, and an anti-seepage water-proof board. The seepage frame includes a fixed part, a connecting part and a frame body. The fixed part is fixedly installed on the inner wall of the cubic steel box, the connecting part is detachably fixed and installed on the lower side of the fixed part, and the anti-seepage frame is fixedly installed under the connecting part. On the side, the anti-seepage water-proof board is fixedly installed on the frame body, and the top surface of the concrete sealing layer is higher than the anti-seepage water-proof board and lower than the fixed part. The application has the effect of separating the fixing part from the connecting part, thereby separating the cofferdam body from the connecting part, and facilitating the detachment of the cofferdam body.