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107results about How to "Improve waterproof quality" patented technology

Construction method of large-span subway station main body by using arched cover method and station main body structure

The invention discloses a construction method of a large-span subway station main body by using an arched cover method and a station main body structure. The construction method comprises the following steps: 1. making first-phase preparations; 2. excavating main body pilot tunnels at the left side and the right side, and carrying out primary support and top beam construction; 3. excavating a middle-part main body pilot tunnel, carrying out primary support and arch buckling construction, and refilling the earthwork; 4. carrying out earthwork excavation on a main body structure in the station, and prestressing force anchor cable construction; 5. carrying out secondary lining construction on the main body structure in the station; and 6. carrying out secondary lining and arch buckling construction on the station main body. The station main body structure comprises the main body structure in the station, a central post, a central plate and a main body arch part, wherein, the main body arch part comprises a middle arch fragment and two side arch fragments respectively arranged in the two side main body pilot tunnels formed by excavation in advance; and the main body arch part comprises a primary support system and a station main body arch buckling secondary lining structure from the outside to the inside. The station main body structure provided by the invention has reasonable design, simple construction steps, convenience in realization, small construction difficulty and rapid construction speed; the subway station formed by the construction method has a stable structure and a good use effect.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1

Main structure for metro long-span station and pillar arching construction method thereof

The invention discloses a main structure for a metro long-span station and a pillar arching construction method thereof. The main structure comprises a station interior main structure, a plurality of middle pillars, a middle plate and a main arch part, wherein the station interior main structure is dug; the middle plate is located on the middle pillars; the main arch part is located right above the main structure; a bottom longitudinal beam is arranged at the bottom of the station interior main structure; a top longitudinal beam is arranged on the main arch part; and a middle longitudinal beam is arranged between adjacent middle pillars. The construction method comprises the following steps: 1) preparing in earlier stage; 2) digging a guiding hole and performing primary bracing and bridging construction; 3) constructing the bottom longitudinal beam, the middle pillars and the top longitudinal beam; 4) constructing a primary branch arch and refilling an arch back; 5) performing arch secondary lining construction; 6) digging the upper part of the main structure and constructing a primary branch of a side wall of the upper part; 7) performing secondary lining construction of the middle longitudinal beam, the middle plate and the side wall of the upper part; 8) digging the lower part of the main structure and constructing the primary branch of the side wall of the lower part; and 9) performing secondary lining construction for a base plate and the side wall of the lower part. The construction method provided by the invention has the advantages of reasonable design, simple construction step, convenience in realizing, small construction difficulty and high construction speed.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1

Coiled material level-laying forming machine and laying method of waterproof coiled material

ActiveCN107859252AContinuous pavingLabor savingRoof toolsMolding machineAsphalt
The invention discloses a coiled material level-laying forming machine and a laying method of a coiled material. The coiled material level-laying forming machine comprises a rack and casters mounted at the bottom of the rack. Parallel waterproof coiled material supporting rolls, protective film wind-up rolls, waterproof film layer laying rolls and down-pressing rolling rolls are mounted on the rack in a hinged mode from top to bottom. The down-pressing rolling rolls are connected with a pressure adjusting device for adjusting the down-pressing pressure. A protective film detecting device whichis mounted on the rack is further arranged between the protective film wind-up rolls and the waterproof film layer laying rolls. The waterproof film layer laying rolls, the protective film wind-up rolls and the down-pressing rolling rolls synchronously rotate. In the laying process, the integrity of the waterproof coiled material can be continuously checked through the protective film detecting device, the pressure-adjustable down-pressing rolling rolls can adjust the rolling pressure according to different laying requirements, continuous laying can be achieved, labor can further be saved, the work efficiency is improved, the waterproof quality is greatly improved, and the coiled material level-laying forming machine is suitable for laying of various waterproof coiled materials, and especially suitable for wet laying of an asphalt coiled material.
Owner:ZHONGSHAN JINGCHENG MECHANICAL & ELECTRICAL EQUIP CO LTD

Wall window construction method

The invention discloses a wall window construction method. A spigot is painted on a window opening firstly, wherein the balancing thickness of the spigot is about 15mm; a uniform and regular clearance cavity is formed among a small surface of the spigot, a plastering forming surface of a window frame and the window opening; materials behind the window frame and sealants can be packed sufficiently, evenly and densely and be bonded sufficiently and firmly with a base surface which is painted in advance; good air tightness and water tightness are guaranteed, and the waterproof and heat-preserving using effect is also guaranteed. By means of the wall window construction method, an external window can be installed in place at one time, so that the installation speed of the window is greatly increased; the packing materials are filled in the uniform and regular clearance cavity, so that the amount of foaming agents and the sealants for use is also reduced; the window opening check process is optimized, the installation of the window saves time, labor and materials, and the probability that the window is subjected to secondary pollution is greatly lowered; the problem of leakage around the window is solved fundamentally, the waterproof effect is good, the cost is low, maintenance responsibilities are clear, and the maintenance is convenient.
Owner:NANJING CONSTR ENG GRP

Subway station body structure and four-joint-arch PBA underground excavation construction method thereof

The invention discloses a subway station body structure and a four-joint-arch PBA underground excavation construction method thereof. The subway station body structure comprises a station inner body structure, multiple left piles, multiple right piles, three sets of middle columns, middle plates and body arches. The body arches are four-joint arches. The construction method comprises the steps of pilot tunnel excavation and primary support; horizontal base and bottom longitudinal beam construction; side pile and middle column construction; crown beam, top longitudinal beam and pilot tunnel inner arch section construction; first and third arch section primary support buckle arch construction; second and fourth arch section primary support buckle arch construction; secondary lining structure construction of first and third arch sections; secondary lining structure construction of second and fourth arch sections; excavation of the upper portion of the station inner body structure, and secondary lining construction of the middle longitudinal beams, the middle plates and the upper portion of the side wall; earth excavation of the lower portion of the station inner body structure and secondary lining construction of bottom plates and the lower portion of the side wall. The construction is easy, the construction progress is fast, the subway station body structure constructed and formed is firm, and the using effect is good.
Owner:NO 1 ENG LIMITED OF CR20G

Modified asphalt waterproof coiled material with reinforced overlap edges and production method of modified asphalt waterproof coiled material

The invention relates to a modified asphalt waterproof coiled material with reinforced overlap edges and a production method of the modified asphalt waterproof coiled material. The modified asphalt waterproof coiled material comprises a main body material layer, a modified asphalt layer and an isolating membrane, wherein two strips of fiber cloth are respectively embedded between the parts, which are respectively 0.1-1cm away from the edges of the two sides along the longitudinal direction of the modified asphalt layer, and the isolating membrane, so that the overlap edges are formed. After the method is adopted, the mechanical properties of the overlap edges are obviously improved after the modified asphalt waterproof coiled material is molded, so that the water resistance of the modified asphalt waterproof coiled material is more reliable; the production method provided by the invention solves the problems that in the traditional production process, due to mechanical mismatch of the left side and the right side of the coiled material, the coiled material is neat when being coiled and is twisted when being unfolded, and the like, and improves the quality of the waterproof coiled material.
Owner:XI NIU PI WATERPROOFING TECH CO LTD

Basement drainage plate and construction method

The invention discloses a basement drainage plate and a construction method. The basement drainage plate comprises a drainage plate; the drainage plate is arranged at the upper part of a basement baseplate, and is provided with hollow convex points outwards projected; hollow grooves are formed in the other surface of the drainage plate; the drainage plate is buckled and joined with the hollow grooves through the hollow convex points; the hollow convex points are downwards paved; a gap drainage sandwich layer is arranged among the hollow convex points; and concrete is cast in the hollow grooves. The construction method of the basement drainage plate comprises the steps of deep design, construction preparation, substrate treatment, pavement of the drainage plate, casting of the concrete on the drainage plate, construction of reinforcements and surface-layer concrete, and inspection and acceptance. The drainage plate is joined in a basement to achieve large-area standard construction, convenient and fast operation and low cost; the next procedure can be performed after the pavement is finished; the standard material and the standard construction are achieved; the material consumption and the construction energy consumption are reduced; and the national policy requirements of energy conservation and emission reduction are met.
Owner:CHINA HUASHI ENTERPRISES

Construction method for initial supporting arch secondary-lining independent tunnel excavation and structures

The invention relates to a construction method for concealed excavation of underground tunnels, in particular to a construction method for initial supporting arch secondary-lining independent tunnel excavation and structures. Tunnels in arch structural forms can be constructed by the aid of the method. The method can be applied to double-arch tunnels, triple-arch tunnels, four-arch tunnels and multi-arch tunnels with the arch quantities higher than four. The method includes general steps of arranging advanced small guide pipes; excavating earth by pneumatic spades in an artificially assisted manner; constructing primary linings and simultaneously reserving connecting components; timely grouting the back of shape steel according to field monitoring data; constructing material transport devices; constructing waterproof layers; erecting support formworks; constructing second linings; detaching the second linings to complete construction. The construction method has the advantages that high risks of construction of special concealed excavation intervals in urban traffic engineering can be reduced, the waterproof quality can be guaranteed, influence on ambient environments can be diminished, the construction speeds can be increased, and the engineering investment can be lowered.
Owner:BCEG CIVIL ENG +1

Waterproof tilted eave of roof parapet and construction method thereof

The invention discloses a waterproof tilted eave of a roof parapet and a construction method thereof. The waterproof tilted eave comprises concrete tilted eaves and rigid skeletons, wherein the concrete tilted eaves are distributed on the inner wall surface of the parapet and are tilted from top to bottom, the rigid skeletons are embedded in the concrete tilted eaves, the upper closed end of a waterproof coiled material positioned below the concrete tilted eaves is firmly pressed between the bottom of the concrete tilted eaves and the parapet, and the parapet is a reinforced concrete wall and is firmly connected with the concrete tilted eaves into a whole. The construction method of the waterproof tilted eave comprises the following steps: 1, measuring and paying off; 2, carrying out rigid skeleton construction; 3, erecting a formwork; 4, carrying out concrete pouring construction; 5, curing the concrete; and 6, removing the formwork. The invention has the advantages of reasonable design, simple construction, low input cost and high work efficiency, and the constructed waterproof tilted eave has beautiful appearance and good waterproof effect, thereby effectively solving the problems of short serviceable life, easy aging and cracking, poor waterproof effect, poor overall visual effect of the roof, high maintenance cost and the like in the traditional waterproof structure.
Owner:陕西建工第十一建设集团有限公司

Composite material and method for conducting ballastless track waterproof maintenance by adopting composite material

The invention provides a composite material and a method for conducting ballastless track waterproof maintenance by adopting the composite material. The method comprises the steps that a gap of a ballastless track is cleaned, and the cleaned gap is filled with a non-curing rubber asphalt waterproof material; an isolation material is laid on the top face of the non-curing rubber asphalt waterproof material to form an isolation layer; concrete base surfaces on the two sides of the isolation layer are coated with binding materials to form binding layers; after the concrete base surfaces are coated with the binding materials, the surfaces of the binding layers and the isolation layer are coated with rapid hardening rubber asphalt waterproof materials or sticky rubber asphalt waterproof prefabricated coiled materials. According to the composite material and the method for conducting ballastless track waterproof maintenance, the good adhesive force of the gap maintained through the method is ensured, powerful shearing stress caused when a train passes the gap at high speed can be effectively resisted, and the composite material is flexible, can effectively resist concrete vibration caused when the train passes the gap at high speed, is not prone to brittle surface factures, and ensures safety usage of the ballastless track.
Owner:YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD

Sucker device for waterproof board construction and tunnel waterproof board construction method

InactiveCN103912291AAvoid welding damage and other damageReduce volumeUnderground chambersTunnel liningAdhesiveArchitectural engineering
The invention discloses a sucker device for waterproof board construction and a tunnel waterproof board construction method. The sucker device comprises a sucker body made by a soft material, and a fixing member, a protruding handle is arranged on the back of the sucker body, the sucker body is connected at one end of the fixing member through the handle, a fastener hole is arranged at the other end of the fixing member, and an adhesive is coated on the adsorption surface of the sucker body. During laying, geotechnical cloth is laid on a tunnel profile face, the fixing member of the sucker device is fixed outside the geotechnical cloth by enabling a fastener to penetrate the fastener hole, the handle of the sucker device is connected on the fixing member in a clamped manner, release paper on the surface of the sucker body is torn off, a waterproof board is upwards jacked and pressed on the sucker body of the sucker device to enable the sucker body to suck the waterproof board, and then the waterproof board is fixedly connected to complete laying of the waterproof board. The waterproof board can be fixed by only pressing the waterproof board on the sucker device when the waterproof board is lifted by adopting the sucker device, so that steps for welding and fixing the waterproof board are not needed.
Owner:邓卫东

Composite fabricated underground structure and reverse construction method thereof

The invention discloses a composite fabricated underground structure. The composite fabricated underground structure comprises underground walls, steel structure clamping grooves, prestressed jacks, and main structure standing columns; prefabricated top longitudinal beams, prefabricated top plates, top plate cast-in-place layers, and top plate waterproof layers jointly form composite waterproof prestressed top plates; prefabricated middle longitudinal beams, prefabricated middle plates, and middle plate cast-in-place layers jointly form composite middle plates; prefabricated cushion layers, bottom plate waterproof layers and cast-in-place bottom plates jointly form composite waterproof bottom plates; the underground walls, side wall waterproof layers, and side wall cast-in-place layers jointly form composite waterproof walls; the composite waterproof prestressed top plates, the composite prestressed middle plates, the composite waterproof bottom plates and the composite waterproof walls are all effectively connected, and the full-package waterproof full-composite fabricated underground structure is formed; thus the problem of water leakage of the fully fabricated underground structure is solved, the limitation of the application range of the fabricated underground structure is broken, the composite fabricated underground structure can be applied to the areas with water-rich stratums, complicated surrounding environment and high deformation control, and the extensive application of the prefabricated structure in underground engineering can be effectively promoted.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Sleeved inner liner reinforcing structure for electrical operation of cable tunnel and construction method thereof

The invention belongs to the technical field of tunnels and underground engineering design and construction and especially relates to a sleeved inner liner reinforcing structure for electrical operation of a cable tunnel and a construction method thereof. The sleeved inner liner reinforcing structure comprises an original arch portion, an original side wall, a base plate cushion, an inverted arch, an inner liner arch portion, an inner liner side wall, a cable support, a cable and a sidewalk base plate. The construction method has following steps: (1) a middle cross arm is erected at the middle of the tunnel; (2) excavation downwards is executed to the bottom of the tunnel original base plate; (3) the structure inverted arch is cast and the sidewalk base plate is cast on the inverted arch; (4) the cable is shifted to a middle position of the tunnel; (5) a water proof layer on the original tunnel inner wall surface is laid and the inner liner arch portion and the inner liner side wall are cast with molds; (6) the cable support and the cable are reinstated and a pavement structure is cast. The invention can ensure the effective control of the strata deformation and the structural stability in the complex environment of the city, and realize the normal operation of the cable in the tunnel during the reinforcement construction stage to ensure the safety of the tunnel structure and power supply and prolong the service life of the cable tunnel.
Owner:CHINA RAILWAY LIUYUAN GRP CO LTD

Subsurface tunnel reverse shield receiving method

InactiveCN105041327AAvoid settingAvoid traffic diversionTunnelsEngineeringShield tunneling
The invention discloses a subsurface tunnel reverse shield receiving method. The subsurface tunnel reverse shield receiving method comprises the following steps that firstly, a subsurface tunnel is constructed in front of the preset receiving position of a shield; secondly, soil of the shield receiving section is reinforced; thirdly, after a shield tunneling machine tunnels to the shield receiving position, cover removing construction is conducted on the closed working face of the subsurface tunnel; fourthly, a section is excavated towards the shield receiving position along the subsurface tunnel, and excavating is conducted until a shield cutter disk is exposed out completely and part of a shield shell is exposed out; fifthly, end sealing is conducted on a tunnel face between an underground excavation primary support and the shield shell; sixthly, the interior of the subsurface tunnel is reinforced; seventhly, components, except the shield shell, of the shield tunneling machine are dismounted in the tunnel and conveyed out; eighthly, waterproof construction in the subsurface tunnel and waterproof construction in the shield shell are conducted, and then remaining secondary lining construction is conducted. The subsurface tunnel reverse shield receiving method solves the technical problems existing in disassembling, dismounting and conveying of the shield tunneling machine in a cave at the section without the condition of hoisting receiving.
Owner:BCEG CIVIL ENG

Construction method for prefabricated pipe gallery joint water proofing

The invention particularly discloses a construction method for prefabricated pipe gallery joint water proofing. The construction method is characterized by comprising the steps that a groove is reserved at the joint of a prefabricated pipe gallery main body structure when a waterproof protection layer is constructed, an uninflated strip-shaped inflating bag is pre-laid at the bottom of the reserved groove, and self-adhering rubber waterstop is pre-laid on the strip-shaped inflating bag; after a prefabricated pipe gallery is installed, the strip-shaped inflating bag is inflated, and the self-adhering rubber waterstop is firmly adhered to the joint of the prefabricated pipe gallery main body structure through air pressure; the inflated air bag is deflated and then detached; and a grouting pipe is laid on one side of the reserved groove, an exhaust pipe is arranged on the other side of the reserved groove, a high-performance waterproof roll is arranged on the side wall to be adhered firmly from the outer side of a bottom plate of the prefabricated pipe gallery in a reverse wrapping mode, a closed space is formed under the bottom plate, and then waterproof mortar is injected to fill the gap of the bottom plate. Therefore, the condition that underground water permeates into the pipe gallery through the inserting joint along the gap can be avoided, and the waterproof quality is improved.
Owner:CHINA MCC20 GRP CORP

Cross pipe gallery outer waterproof construction method

The invention discloses a cross pipe gallery outer waterproof construction method. According to the construction method, construction joints are formed by a certain distance in side walls of a main pipe gallery and side walls of a secondary pipe gallery above the top faces of bottom plates, a concrete cushion layer is laid at the bottom of a foundation pit, guide walls are built from two sides ofthe side walls of the main pipe gallery, and soil outside the guide walls is tamped to be flat below the top faces of the guide walls; the concrete cushion layer is laid to be flush with the top surfaces of the guide walls, and guide walls are built on two sides of the side walls of the secondary pipe gallery on the concrete cushion layer of a bottom plate of the secondary pipe gallery; waterproofcoiled materials of a bottom plate and the side walls of the main pipe gallery and the bottom plate of the secondary pipe gallery are pre-laid; a waterproof reinforcing layer is pre-laid at the external corner part of a top plate of the secondary pipe gallery; waterproof treatment is performed on the intersection part between the side walls of the secondary pipe gallery and the top plate of the main pipe gallery; and waterproof treatment is conducted on the side walls above the bottom plate of the secondary pipe gallery, and protection of the waterproof coiled materials is achieved. By meansof the method, gapless laying of the waterproof coiled materials at a cross pipe gallery is achieved, coiled material stress concentration and damage to the waterproof coiled materials are reduced, the waterproof effect is good, construction is easy, and the construction period is shortened.
Owner:CHINA FIRST METALLURGICAL GROUP
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