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106results about How to "Adapt to deformation" patented technology

Casing draining end bearing pile for treating liquefied foundation and construction method

InactiveCN102995622AImprove bearing capacityTimely dissipation of excess pore water pressureBulkheads/pilesSoil preservationCrushed stoneEngineering
The invention discloses a casing drawing end bearing pile for treating a liquefied foundation and a construction method. The casing drawing end bearing pile for treating the liquefied foundation is that a pile body comprises an inner plastic pipe, an outer plastic pipe, a blind drain, concrete and a geotextile; a casing pile is an end bearing pile; a drilling machine is adopted and is used for drilling a hole so as to insert the outer plastic pipe which is wrapped by the geotextile into a foundation bearing course; the annular draining blind drain of which the diameter is slightly smaller than that of the outer pipe is placed on the inner side of the outer plastic pipe, so as to form a vertical draining channel; the inner plastic pipe is placed on the inner side of the annular draining blind drain; the concrete is poured into the inner plastic pipe to form the pile; and a gravel cushion layer is paved at the top of the pile along the horizontal direction, thus forming a horizontal draining channel. By adopting the casing draining end bearing pile for treating the liquefied foundation and the construction method, the bearing capacity of the pile is improved under the same amount of used concrete, the application range is wide, and the casing draining end bearing pile is applicable to the treatment of a general wear foundation and the liquefied foundation; the horizontal draining channel and the vertical draining channel are provided for foundation liquefying, and thus the possibility that the foundation is liquefied is reduced; and the casing draining end bearing pile is reasonable in structure, good in pile forming effect, low in cost and convenient to construct, and realizes the effects on foundation treatment and seismic hardening.
Owner:HOHAI UNIV

Foamable phenolic resin strengthening and filling material for coal mine

The invention relates to a foamable phenolic resin strengthening and filling material for coal mine. In the foamable phenolic resin strengthening and filling material for coal mines, a component A is one of inorganic acid and organic acid or a mixture of inorganic acid and organic acid; and a component B is prepared by mixing 90 to 100 weight parts of urea modified phenolic resin with solid content of 65 to 90 weight percent, 6 to 10 weight parts of composite fire retardant, 0 to 15 weight parts of foaming agent, 1 to 5 weight parts of stabilizing agent, 1 to 15 weight parts of cosolvent, 2 to 16 weight parts of antistatic agent and 10 to 30 weight parts of plasticizer, stirring at the temperature of between 30 and 50 DEG C and reacting for 0.5 to 2 hours. When the foamable phenolic resin strengthening and filling material is used, the component A and the component B are mixed and injected into a coal (rock) layer according to the weight ratio of (1-2) : 1 and permeated into small cracks to expand and generate curing reaction for strengthening and sealing the region. According to the foamable phenolic resin strengthening and filling material for coal mines, the compressive strength is more than 40 MPa; the bonding strength is more than or equal to 3.0 MPa; and the foaming coefficient is less than or equal to two times. The foamable phenolic resin strengthening and filling material for coal mines can meet the requirement of coal mine on safety production and can be applied to the industries such as hydroelectric powder, buildings, mining, traffic and the like.
Owner:SHANXI ZHAOXIN BIO TECH

Deformation joint treatment method and deformation joint waterproof structure

The invention relates to the field of water leakage treatment of building joints, in particular to a deformation joint treatment method and a deformation joint waterproof structure. The deformation joint treatment method comprises the steps that 1, on-site survey is conducted; 2, the type of deformation joint leakage is determined based on the result of the on-site survey; and 3, a construction plan is made based on the type of the deformation joint leakage. According to the deformation joint treatment method, the on-site survey is firstly conducted, information of the deformation joint is collected, the width and length of the deformation joint, the location and cause of water seepage, the number of water seepage points, the amount of water seepage, and the damage condition of a water stop are obtained; the type of the deformation joint leakage is determined based on the location and cause of water seepage, the number of water seepage, the amount of water seepage, and the damage condition of the water stop; according to the determined type of the deformation joint leakage, a targeted construction plan is made to better treat the leakage. According to the deformation joint treatment method, a flexible waterproof structure is formed, in the process of water blocking, a water blocking material can passively adapt to the deformation of the structure, and the problem of water leakage caused by the material damage due to the deformation of the structure is alleviated.
Owner:SUBWAY OPERATION TECH R & D CENT BEIJING SUBWAY OPERATION CO LTD +1

Quick pipeline connecting flange

The invention relates to a quick pipeline connecting flange comprising a flange body. The flange body is cylindrical, and the outer edge of the front end is provided with screw holes and bolts being in butt joint with and fixed to a butt flange. The quick pipeline connecting flange is characterized by being further provided with a clamping component group clamping the flange body to the outer wall of a connected pipeline and a sealing component group sealing the flange body and the outer wall of the pipeline; the clamping component group is arranged on the inner wall of the outer end of the flange body, the sealing component group is arranged on the inner wall of the inner end of the flange body, and the outer periphery of the clamping component group is attached into the groove of the inner wall of the outer end of the flange body; the outer periphery of the sealing component group is fixed to the inner wall of the inner end of the flange body and connected and fixed to the flange body through the bolts at the rear end. The clamping component unit is provided with a slip and a slip sleeve; the sealing component group is provided with a locking ring, a rubber ring and a butting flange sequentially from outside to inside. The quick pipeline connecting flange is applicable to pipelines, in particular to maintenance of underwater submarine pipelines, and has the advantages of high working efficiency, reliable sealability and firmness, high adaptability, maintenance cost saving and the like.
Owner:周庆涛

Externally-hung infilled wall structural system of steel framework, assembly-type infilled wallboard and construction method

The invention relates to an externally-hung infilled wall structural system for an assembly-type steel framework. The system comprises the rectangular steel framework and the infilled wallboard. The steel framework is formed by connection of steel framework columns and steel framework beams. The inside of an upper steel framework beam at the upper part is connected with first angle iron connectingpieces by welding. The inside of a lower steel framework beam is connected with second angle iron connecting pieces by welding. The infilled wallboard is arranged outside the steel framework and connected between the upper steel framework beam and the lower steel framework beam. Four corners of the infilled wallboard are equipped with first screw rods and second screw rods in a pre-buried manner.The bottom of each rectangular connection board is connected with a first screw rod. The top of each rectangular connection board is connected with the upper steel framework beam through a third screw rod. Each second screw rod is connected with each second angle iron connecting piece. In case of a horizontal earthquake, the wallboard and the steel framework are deformed so that anti-earthquake performance is improved. During the force-bearing process of screw rods, surrounding concrete is not affected so that concrete is prevented from cracking.
Owner:新疆中鼎建设集团有限公司

Open cut tunnel structure of simply supported arch of tunnel traversing huge karst cave and construction method thereof

The invention relates to the field of karst tunnels, in particular to an open cut tunnel structure of a simply supported arch of a tunnel traversing a huge karst cave and a construction method thereof. The structure comprises a U-shaped substrate, an arch part simply supported arch, a vault backfill body and a bridge beam plate. The tops of two sides of the U-shaped substrate are in contact with upper surrounding rocks, a slot I is formed in one side of the inner wall of the U-shaped substrate, and a slot II is formed in the other side of the U-shaped substrate; the vault backfill body fills aspace among the upper surrounding rocks of the arch part simply supported arch; a side substrate I and a side substrate II are separately arranged on two sides of the arch part simply supported arch;the side substrate I is placed in the slot I and can shift vertically and transversely in the slot I; the side substrate II is placed in the slot II and can shift vertically and transversely in the slot II; and the bridge beam plate is placed in a space encircled by the arch part simply supported arch and the U-shaped substrate, and two ends of the bridge beam plate are located on stable foundations at two ends of the karst cave. The construction method is used to construct the structure. The open cut tunnel structure achieves dynamic and static separation and can avoid excessive structural settlement caused by dynamic and static load coupling.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Method for improving integral type bridge abutment sustaining pile stress performance by H-shaped concrete pile

The invention relates to a method for improving integral type seamless bridge and bridge abutment pile foundation stress performance by an H-shaped concrete pile, and belongs to the field of bridges. The method comprises the following steps that (1) a sustaining pile is simulated through a finite element software and compared with an experiment pile, under the condition that the sustaining pile is in accordance with the experiment pile, the section of the sustaining is designed to an H-shaped section which enables a pile body to have optimal stress performance, and the strong axis and the weak axis of the H-shaped section are clear; (2) concrete with super high toughness is prepared; (3) moulding and bar laying are carried out, a concrete sustaining pile with super high toughness is divided into multiple units to be prefabricated, the end section of each unit is in a rectangular shape, and the middle section of each unit is in an H shape; (4) the multiple units are connected into a whole through connecting steel plates and bolts, the connecting position gradually changes from the solid rectangular section segment to the H-shaped section segment, and multiple threaded rods stretches out and at least stretches into the one fourth position of the next unit; (5) multiple threaded shearing nails are arranged on the pile head of the sustaining pile, and cast-in-place is carried out on the whole bridge abutment. The method can effectively reduce the horizontal anti-thrust rigidity of the pile, significantly increase the durability of the pile, and save the high maintenance cost.
Owner:FUZHOU UNIV

Pre-stressed anchor rod support anchoring device and method

The invention provides a new method for pre-stressed polymer anchor rod support of rock-soil anchoring. The new method comprises the following steps that a drill hole position is determined; drillingis carried out and sundries in a hole are cleared away; contaminants on the surface of a rod body are cleared away, a bracket is welded and centered, and a hole sealing cloth bag is bundled up; the rod body is put into the drill hole; a polymer is injected into the hole sealing cloth bag to seal the hole, the polymer is injected into an anchoring section; pre-stress tensioning and locking are carried out; effective pre-stress is monitored, after pre-stress locking is carried out for 24 hours, the situation of pre-stress loss is observed, and if the pre-stress loss exceeds 10% of the designed tensioning force, compensation tensioning and locking are carried out; concrete slurry is casted, and hole sealing is carried out. The new method has the advantages that the use is rapid and safe, thetime is saved, a rock-soil body can be rapidly anchored, the permeability coefficient is very low, antiseptic treatment does not need to be carried out specially on the rod body, the rod body has a certain flexibility and is suitable for the deformation of the rock-soil body better, the bonding strength of the rod body with a matrix is greater than that of concrete, and the method is more suitablefor engineering needing to be reinforced rapidly.
Owner:ZHENGZHOU UNIV +1

Double-layer primary support structure of weak surrounding rock tunnel and construction method thereof

The invention discloses a double-layer primary support structure of a weak surrounding rock tunnel and a construction method thereof and belongs to the technical field of tunnel construction. The double-layer primary support structure of the weak surrounding rock tunnel comprises a single-layer mesh reinforcement. The outside arc face of the single-layer mesh reinforcement is provided with anchorholes. Anchor rods are inserted into the anchor holes. According to the double-layer primary support structure of the weak surrounding rock tunnel, by means of mutual cooperation of the designed anchor rods, connection holes, bearings, rotating shafts, threaded rods, threaded cylinders, fins, pin shafts, limiting holes, an outer layer interrupted type arch frame, buffering devices, an advanced flexible net-structure protective cover, a buffering air cushion layer and other structures, by changing the position relationship between the fins and the anchor rods, the stress area of the anchor rodscan be effectively increased, and then the anchorage effect of the anchor rods on the overall structure can be effectively improved; and meanwhile, the adopted flexible connection relationship can effectively weaken the degree of the problems that deformation time is long, the deformation amount is large, the deformation speed is rapid, the time of duration is long, a large area of surrounding rock extrudes and invades into a limitation bound, and the support cracks or damages severely.
Owner:浙江省衢州市交通建设集团有限公司

Rapid repairing structure for shallow landslide of above-second-level soil slope and construction method thereof

The invention discloses a rapid repairing structure for a shallow landslide of an above-second-level soil slope and a construction method thereof. According to the repairing structure, a step is excavated on a landslide part of a landslide body, multiple layers of backfill bagged soil are constructed on the step in a filling manner, and geogrids are laid at the bottom of each layer of backfill bagged soil; reserved parts of the geogrids are reversely wrapped along the backfill bagged soil on the upper portions of the geogrids and tensioned to the required tensile strength, the geogrids are fixed to the top face of the backfill bagged soil through U-shaped nails to form reverse wrapping, and the reverse wrapping geogrids and the geogrids adjacent to the upper layer are fixedly connected through U-shaped nails and are both fixed to the top face of the corresponding backfill bagged soil; and a plurality of steel bars are implanted into the bottom of a reinforced body formed by combining the backfill bagged soil and the geogrids. The repairing structure plays a supporting role, meanwhile, energy dissipation is achieved on expansion deformation generated by soil in the slope through self deformation, the repairing effect is good, construction is easy and convenient, the technical requirements for personnel are low, the construction period is short, the number of machines is small, risks are low, cost is low, and environment friendliness is achieved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Circular assembling type double-wall corrugated closed steel corrugated culvert pipe

PendingCN106120581AAdapt to deformationSolve the problem of culvert damageGround-workCarrying capacityDouble wall
A circular assembling type double-wall corrugated closed steel corrugated culvert pipe comprises closed double-wall corrugated pipe segments. Each closed double-wall corrugated pipe segment is composed of two corrugated shaped steel plates, and the two corrugated shaped steel plates are welded to form the closed double-wall corrugated pipe segment and serve as an outer wall and an inner wall of the corresponding closed double-wall corrugated pipe segment respectively; six closed double-wall corrugated pipe segments are mutually spliced to form a circular pipe ring, the outer walls and the inner walls of every two adjacent closed double-wall corrugated pipe segments are mutually spliced, and the splicing positions are fixed through a row of bolts; and multiple circular pipe rings are mutually spliced to form an integral corrugated culvert pipe. The circular assembling type double-wall corrugated closed steel corrugated culvert pipe has the characteristics of high strength, high carrying capacity and the like, and as the body of a culvert and a bridge, when being compared with a concrete pipe culvert, the circular assembling type double-wall corrugated closed steel corrugated culvert pipe has the advantages of simpleness in construction, convenience in maintenance, long in service life, high ability of adapting to the foundation deformation and the like, and is worth popularizing.
Owner:河北驰特轨道交通设备有限公司

Basement connection portion crack preventing structure

The invention discloses a basement connection portion crack preventing structure which comprises an internal connecting part, an external connecting part and a deformation buffer slit. A settlement buffer zone is arranged at the bottom of the deformation buffer slit, the internal connecting part and the external connecting part at two sides of the deformation buffer slit are in snap joint, and ananti-crack waterproof assembly is arranged at the top of the deformation buffer slit. The settlement buffer zone comprises reinforcing belts; each reinforcing belt comprises a connecting section and an anti-shear section, since the connecting section of the reinforcing belt has difference in vertical height, the anti-shear section is oblique; the connecting sections refer to a rigid connectors buried in the internal connecting part and the external connecting part and the anti-shear sections refer to elastic connectors. According to the arrangement, the anti-shear sections refer to elastic parts having a certain deformability and can reduce the probability of cracking of the settlement buffer slit; besides, the snap joint can increase adhesion stress between the two parts so that settlement of the basement connection portion can be synchronous to the utmost extent; the anti-crack waterproof assembly arranged at the top can reduce crack and water seepage further; therefore, the whole basement connection portion has excellent anti-crack and waterproof effect.
Owner:浙江联建工程设计有限公司

Waterproof construction technology for sidewalls of utility tunnel

The invention relates to the technical field of infrastructure construction, and provides a waterproof construction technology for sidewalls of a utility tunnel. The waterproof construction technologycomprises the following steps of step S10, carrying out substrate processing; step S20, painting a substrate treating agent, uniformly stirring the substrate treating agent, and uniformly painting the substrate treating agent on a substrate; step S30, paving a self-adhered waterproofing roll with a cross laminated membrane, removing a first isolating membrane on the self-adhered waterproofing roll with the cross laminated membrane, making a bonding surface of the self-adhered waterproofing roll with the cross laminated membrane face the substrate and adhering to the substrate; step S40, sealing the self-adhered waterproofing roll with the cross laminated membrane and closing up, making the tail ends of the periphery of the self-adhered waterproofing roll with the cross laminated membraneextend into a vertical wall groove, fixing by metal beads, and sealing by seal paste; S50, carrying out tissue acceptance; and S60, carrying out protection layer construction. During the constructionof the self-adhered waterproofing roll with the cross laminated membrane, as long as the first isolating membrane is removed, the self-adhered waterproofing roll with the cross laminated membrane canbe firmly adhered to the substrate, the use is very convenient, and meanwhile, a waterproof effect is excellent.
Owner:CHINA 19TH METALLURGICAL CORP

Loading device for overall stability test of horizontal steel curved beam

The invention belongs to the related technical field of steel structures, and particularly discloses a loading device for overall stability test of a horizontal steel curved beam. The loading device comprises a counter-force frame unit, a sliding unit, a pressure sensor and a loading unit, wherein the counter-force frame unit is used for supporting the loading device; a top flat plate of the sliding unit is connected to the counter-force frame unit, sliding grooves are fixed to the left side and the right side of the top flat plate, and a sliding assembly is connected to a bottom flat plate and drives the bottom flat plate to slide in the length direction perpendicular to the horizontal steel curved beam. The upper side of the pressure sensor is connected to the bottom flat plate, and thelower side is connected to the loading unit. According to the invention, the sliding unit is arranged between the counter-force frame unit and the pressure sensor, when the horizontal steel curved beam generates lateral displacement, the pressure sensor and the loading unit can be driven to slide in the direction perpendicular to the length direction of the horizontal steel curved beam, so that the loading direction is always vertically downward in the loading process, and meanwhile, the constraint on the lateral displacement of the horizontal steel curved beam is released.
Owner:HUAZHONG UNIV OF SCI & TECH
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