180results about How to "No water seepage" patented technology

The invention relates to a construction method for an underground tunnel, in particular to a construction method for a river-crossing shield tunnel crushed stratum communication channel, which is used for solving the problems of failure of stratum reinforcement, long working period, high cost, poor quality and the like existing in the construction process of the conventional river-crossing shieldtunnel crushed stratum communication channel. The method comprises the following steps of: determining the position of the communication channel; before opening, performing pre-grouting to integrallyconsolidate broken rock outside the excavation outline of the communication channel; forming a high-strength waterproof curtain; before excavation, performing stress conversion; drilling and partitioning to remove a left line pipe sheet, brushing the top, performing tunnel excavation with a combined damping burst technology, and timbering; and drilling and partitioning to remove a right line pipesheet, brushing the top, and performing second lining construction by adopting a combination template. Due to the adoption of the construction method, water seepage is avoided after excavation, the technology is advanced, the blank of a communication channel pre-grouting technology is fulfilled, the working period is short, the mechanical degree is high, the process is simple, construction is environmentally-friendly, collapse is avoided, and over-excavation is greatly lowered; and the method has a wide application range.

The present invention discloses an acrylate mono-component waterproof coating material, which comprises the following components, by weight, 50-70 parts of an acrylic acid emulsion, 0.02-0.04 part of a preservative, 5-7 parts of calcium carbonate, 10-20 parts of titanium dioxide powder, 0.1-0.3 part of a thickening agent, 3-6 parts of dibutyl ester, 0.04-0.06 part of an ammonia neutralizer, 2-4 parts of cellulose, 0.01-0.03 part of an anti-foaming agent, 6-8 parts of water, and 1-2 parts of a filler. According to the present invention, the pure acrylate emulsion is added with the high quality p filler and the additives to prepare the mono-component high polymer water-based waterproof coating material, wherein the coating material has characteristics of good impermeability, good adhesion, good flexibility, good whole elasticity and good whole elongation, and the effect that the crack with a width of 2-3 mm is generated on concrete while no water seepage is generated after coating the waterproof coating material can be achieved.

The invention discloses a tower crane foundation in a building basement and a manufacturing method of the tower crane foundation. The tower crane foundation is manufactured into an orthogonal beam slab type reinforced concrete tower crane foundation composed of an orthogonal beam and a slab. During manufacture, a pit of the tower crane foundation is dug in the building basement, and then the orthogonal beam is poured in a traditional mode of pouring reinforced concrete and the slab is poured on the orthogonal beam, and meanwhile, at least one circle of water retaining boards is fixedly inlaid around the slab; base plate surface ribs of basement base plates are embedded according to a traditional mode of pouring the basement base plates, and then the basement base plates are poured; and after the basement base plates are poured, the water retaining boards are inserted into the basement base plates around the slab, so that the orthogonal beam slab type reinforced concrete tower crane foundation is connected with the basement base plates into one. The tower crane foundation has the advantages of fastness, convenience and high efficiency in construction, low construction and operation cost, reliability in performance, safety in operation, convenience in operation and the like.

Entrust the ocean haulage line, the double wing settles automatically and equips deeply, its bearing and pressing to have inside hull body has already sealed completely the set of the function a tube, driving organization gearing in the set the tube, battery set, communication and control mold piece arranges respectively the department is after the set take care of before, the compass mold piece arranges after communication and control mold piece of department, the depth spreads the upper part that the feeling machine arranges in the battery set, the communication coil arranges in the depth and spread the upper part of the feeling machine; The upper part which bears to press a hull body contain two conjunction terraces, linking terrace to have to lock tight organization up; Drive organization from the electric motor, decelerate a machine, allied stalk machine, silk, put a pole to constitute, the upper part which puts a pole stretches out in bear to press the outside of the hull body and wing plank to install stalk solid connect. This equips of drive the organization simple tightly packed, operation credibility, wing plank action intelligent, respond quickly, have another heavy seal completely structure, work to can't take place breakdown, either because of water with long hours in the underwater, exploitation's locking tight organization can quickly and expediently with drag along a cable conjunction or from drag along a cable up unload, easy to drag along the cloth of cable to put.

A clamping-sealing structure and an adjustment method of a transmission-type receiving probe comprises a base plate and a structural main body, wherein the base plate is connected with a transmission-type receiving probe device and the structural main body is used for fixing the base plate. An upper flat rod fixed through a screw is inserted and connected in a shaft hole on the bottom of the base plate, inserted into a horizontal shaft hole at the upper end of a stand shaft and is connected with the stand shaft through a fastening screw. The stand shaft is in threaded connection with the transmission-type receiving probe device through a threaded hole in the lower portion of the stand shaft. The stand shaft drives the transmission-type receiving probe device to slide on the upper flat rod to adjust the distance between the receiving probe and the center of a transmitting probe emitter zone. The receiving probe device slightly rotates on the stand shaft to adjust the deviation of the receiving probe and the center of the emitter zone. According to the clamping-sealing structure and the adjustment method of the transmission-type receiving probe, the transmission-type receiving probe can be flexibly and conveniently replaced in real time or accurate angle alignment adjustment can be carried out. A water seepage phenomenon of the transmission-type receiving probe placed in the water cannot happen. The clamping-sealing structure and the adjustment method of the transmission-type receiving probe are especially suitable for nondestructive testing job requirements of transmission-type high-speed scanning.

The invention discloses an intelligent floor sweeping robot which stably supplies water. The intelligent floor sweeping robot comprises a water tank (1), the water tank (1) is internally provided with a spherical cover (2), the spherical cover (2) is arranged on the bottom wall of the water tank (1), and is provided with a water inlet hole (3), the water inlet hole (3) makes the water tank (1) communicated with the spherical cover (2), a sphere (4) is placed in the spherical cover (2), the bottom wall of the water tank (1) below the spherical cover (2) is provided with a water outlet hole(5), and when the intelligent floor sweeping robot moves or is static, the sphere (4) switches between the states of not blocking and blocking the water outlet hole(5). According to the intelligent floor sweeping robot which stably supplies the water, the process of stopping supplying the water or supplying the water is achieved by directly blocking the water outlet hole or not blocking the water outlet hole, the problem that water leakage occurs since air seeps from the water outlet hole when water supply is stopped, and the uniform and stable water can be provided for floor cleaning mopping cloth.

The invention discloses whipping cream special for an egg tart and a production method thereof. The compositions per 100 grams of raw materials by weight of the whipping cream special for the egg tart provided by the invention are: 80 to 98 grams of the whipping cream, 0.5 to 19 grams of cow milk, 0.1 to 0.8 gram of emulsifiers, 0.1 to 0.8 gram of stabilizers, 0.0 to 0.1 gram of pigment, 0.0 to 0.05 gram of preservative, the balance being water which makes up for 100 grams. Nutrition reinforcer is also preferably added into the raw materials. The production method thereof comprises the following steps of: firstly, acceptance check of the raw material milk; secondly, separation of the whipping cream; thirdly, addition of the compositions; fourthly, pasteurization; fifthly, homogenization; sixthly, UHT sterilization; seventhly, cooling; and eighthly, package. The production of the whipping cream special for the egg tart has smooth mouthfeel and rich nutrition, and meets the roasting stability through addition of the emulsifiers and the stabilizers. Moreover, the quality guarantee period is prolonged by adoption of the UHT sterilization technology, the aseptic package technology and the online addition technology of the nutrition reinforcer.

The invention provides a paint compound and a preparation method thereof. The paint compound is used for solving the problems that in the prior art, aqueous emulsion type rubber asphalt waterproof paint is low in solid content, large in latex mixing amount and high in cost. According to the compound and the preparation method, due to the fact that emulsion is conducted on modified SBS modified asphalt and polychloroprene latex, the obtained paint compound has the advantages that the content of neoprene latex is lowered, and meanwhile the product cost is reduced; the solid content of the paint compound reaches 60%, the material use amount of unit area is decreased, the construction efficiency is high, and the transportation cost is low; the paint compound is water-based paint and is safe and environmentally friendly, and small in injury to health of constructors; the elongation at break of the paint compound is large and is larger than 1000%; the waterproof pressure of the paint compound is high and can reach 0.6 MPa, and no water seepage happens within 30 min.

The invention discloses a submarine navigation monitoring system based on laser polarization detection. The submarine navigation monitoring system comprises an underwater part 1 and a ground part 2, wherein the underwater part comprises a submarine navigation system, a two-axis turntable, a scanning mechanism 19 and a submarine sound signal transmission system 5; the ground part comprises a submarine sound signal receiving system 30 and monitoring equipment 35.The main principle is that laser light becomes partially polarized light or linearly polarized light after being reflected through a man-made object, and the polarization property of the reflected light contains a variety of information of the object. As the texture structure, the surface state and the material type of the underwater man-made object are different from the texture structure, the surface state and the material type of a natural object, reflected laser light with different polarization properties are obtained, images with different degrees of polarization are extracted through a polarizer arranged at the front of a video camera, and the man-made object is separated through image processing. The submarine navigation monitoring system can assist the sonar technology in effectively detecting and recognizing submarines, torpedoes and other military targets, thereby being a detection means which is high in distinguishability, sensitivity and efficiency.

The invention discloses a pipe-jacking construction method for a large section of a complicated formation. The pipe-jacking construction method for the large section of the complicated formation comprises the steps of control of settlement of existing structures in a pipe-jacking construction process, control of construction parameters during jacking in different geological formations, control ofjacking in a formation which is soft in top and hard in bottom, control of jacking in a hard rock stratum and line-type control in curve pipe-jacking and process. A seam at a curve pipe-jacking jointmeets the requirement, it ensures that water does not leak from a seam between pipes, the engineering quality is ensured, a jacking pipe can successively downwards penetrate through a high-speed waterguiding pipe and a sewage pipe, the safety of various structures is ensured, it can be ensured that settlement of a pipe-jacking line is in a controlled state, potential safety hazards are reduced, settlement can be controlled effectively, the jacking pipe can safely and smoothly penetrate through the formation, the safety of opening a bin for changing a knife can be ensured, and smooth jacking of a pipe-jacking machine under the condition of hard rocks is ensured.

The invention discloses a degradable porous film for wind prevention, ventilation and bacteriostasis, which is prepared by the steps of: adjusting the liquid temperature of a reactor to 30 DEG C, and uniformly mixing butanone, dimethylformamide, toluene and polyurethane resin at the first stirring rate according to the mass ratio of 10:10:25:100 to form a first primary resin solution; slowly adding 1, 6-diisocyanate hexane into the first primary resin solution to form a first primary resin mixed solution; mixing the solvent which is formed by water and the butanone with the first primary resin solution to form the first primary resin mixed solution; mixing the regulated resin mixed solution with N-methylethanolamine; filtering the regulated first primary resin mixed solution by a nylon net of 100-200 meshes, so the filtered first primary resin mixed solution is obtained; and drying the macromolecular mixed resin which is scraped on the silicon oil release paper in a tensioning state by four stages. The porous film has uniform and dense micropores at a nanoscale of 50-200nm, has good wind prevention, moisture permeation, waterproofness, ventilation and excellent bacteriostasis, and is contributed to maintaining the long-term dryness of the film surface and wearing health when being used.

The invention relates to the technical field of sea bottom immersed tube tunnels, and provides a waterstop protection device. The waterstop protection device is arranged between joints of two sections of an immersed tube, and comprises a steel plate protection cover, wherein the steel plate protection cover is positioned at the outer side of the waterstop and is formed through splicing welding, the joint parts of adjacent steel plates of the steel plate protection cover adopt a seamless welding mode, and in addition, additional welding processing is carried out; sponge rubber is arranged in inner positions, near the two ends, of the steel plate protection cover. A seamless welding mode is adopted between the adjacent steel plates, and in addition, the additional welding processing is carried out, so that the connecting sealing performance between the steel plates and concrete immersed tube sections is improved, the whole waterstop protection device forms a more sealed space, the goal of isolating air, dust, water and the like is achieved, the problem of waterstop corrosion damage due to contact of the waterstop with the air and the water is effectively solved, and the service life of the immersed tube is ensured.

The invention discloses a test device for water flowing on pavement under action of tires. The test device comprises a pressurization suction pump (1), a seepage meter and a water vibration motor (4), wherein the seepage meter comprises a pressurization measuring cylinder (3), a seepage pipe (13) and a cavity base (12), a seepage cavity (15) is formed in the cavity base, one end of the seepage pipe is communicated with the seepage cavity, the other end of the seepage cavity is communicated with the pressure measuring cylinder, and a valve (9) is arranged on the seepage pipe; a port, away from the seepage pipe, of the pressurization measuring cylinder is communicated with the pressurization suction pump (1) through a connecting groove (2), the water vibration motor is mounted on the pressurization measuring cylinder, and an electronic water meter (5) is mounted in a port, communicated with the seepage pipe, of the pressurization measuring cylinder. The test device of the communicated water flow of pavement under tires can simulate the seepage situation of the asphalt pavement after dynamic water pressure is generated under the load action of the tires, and water seepage coefficients of the asphalt pavement are measured under the condition, so that test accuracy can be improved, actual measurement requirements are met, and broad application prospect is realized.

The invention provides a heat reflection type colored spray-quick-setting rubber-asphalt waterproof coating material. The waterproof coating material is characterized by comprising a component A and acomponent B, wherein the component A comprises the following ingredients: emulsified modified asphalt, fillers, an infrared reflection pigment, nano zinc oxide, a dispersant, latex, a bactericide, water and color paste. The component B is prepared through mixing calcium chloride, sodium chloride and water according to the mass ratio of 7.8: 0.2: 92. The waterproof coating material is aqueous andenvironmentally friendly and is high in adhesion and high in bonding strength.

The invention provides an underground space subsurface excavation construction method adopting a combined roof, which comprises steps: a proposed underground space is divided into a plurality of spaced channels, first metal plates which are higher than the top ends of the channels are arranged above space positions of the adjacent channels through a traction method, pipe joints which are provided with embedded grouting pipes are arranged in the channels through a pipe jacking method, metal frame units are arranged on top plates of the pipe joints, waterstop coating is injected between the top plates of the pipe joints and the first metal plates through the embedded grouting pipes, adjacent side plates of the pipe joints arranged on adjacent channels and soil bodies between adjacent side plates are removed, the top plates which are arranged on the pipe joints of the adjacent channels are connected through second metal plates, support units are arranged in the channels, concrete is casted in the top plates of the pipe joints, reinforced concrete is casted on bottom plates of the pipe joints, and reinforced concrete is casted on the side plates of the pipe joints which are arranged on the channels of the two sides of the underground space. The underground space subsurface excavation construction method adopting the combined roof reduces construction cost, guarantees construction quality, and is simple in construction method and rapid in construction efficiency.

The invention discloses a radial grouting construction method of a one-hole dual-pipe tunnel, relates to a grouting construction method, and solves the problems of mortar leakage because the hole opening is not blocked tightly and poor grouting effect. The method comprises the following steps: 1, drilling, namely drilling at the bottom of the tunnel by a down-the-hole machine; 2, mounting groutingpipes, wherein the grouting pipes are high-pressure pipes, and embedding the two grouting pipes; 3, sealing the hole opening, plugging compactly in the area at a certain depth in the hole opening byusing an anchoring agent; 4, performing grouting, using quick joints in the grouting, inserting the quick joints to grouting pipe heads of the embedded grouting pipes and fixedly sealing; and 5, performing detection and acceptance, taking cores to check filling conditions, drilling to take sand cores by a core taking driller, observing the filling conditions of mortar, and further checking the water inflow in a measuring hole, and carrying out a water injection test to test water permeability coefficients. The construction method disclosed by the invention is used in grouting construction of railway tunnels.

The invention discloses a watertight tractive load-bearing control cable. The watertight tractive load-bearing control cable comprises a copper conductor formed by bundling a plurality of strands of copper wires. A sealing layer I is formed by coating the copper conductor with a sealant. An insulated cable core is formed by extruding a TPV elastic body insulating layer outside the sealing layer I. A waterproof layer is formed by filling gaps among the cable cores with waterproof glue when a finished cable is formed by stranding the cable cores. Waterproof wrapping tape is wound around the finished cable. An armor aramid fiber tensile enhancement layer is wound around the waterproof wrapping tape, waterproof wrapping tape I is wound around the aramid fiber tensile enhancement layer. A polyurethane inner sheath is extruded outside the wound waterproof wrapping tape I. A shielding layer is formed outside the inner sheath by weaving tinning annealed copper wires and is coated with a sealant so that a sealing layer II can be formed. A polyurethane outer sheath is extruded outside the sealing layer II. The watertight tractive load-bearing control cable is reliable in longitudinal watertightness performance, good in flexibility, light in weight, resistant to wear and bending, good in tension resistance, and can normally maintain reliability of electric transmission and control signal transmission under certain water pressure.

The invention relates to a manufacturing method used for a silicon-based liquid crystal panel, including the following steps: a glass baseplate provided with a plurality of sealants and a silicon chip provided with a plurality of circuits are provided; the silicon chip and the glass baseplate are combined; the glass baseplate is cut to get a plurality of panel units; and a liquid crystal is injected into the panel units to form the silicon-based liquid crystal panel. With the manufacturing method, the manufacturing accuracy and the defect-free rate of the silicon-based liquid crystal panel can be enhanced.

The invention discloses a sealing method for impermeability test of concrete. The method comprises the following steps: step 1, maintaining a truncated-cone-shaped test block used for impermeability test, taking the test block in one hour before the impermeability test, cleaning the side surface of truncated-cone-shaped test block by wiping and removing burrs; step 2, uniformly smearing the side surface of truncated-cone-shaped test block with a weather-proof neutral silicone adhesive so as to form an annular sealing adhesive strip; step 3, cleaning a test block sleeve by wiping, sleeving the test block smeared with the weather-proof neutral silicone adhesive with the test block sleeve; step 4, spraying the weather-proof neutral silicone adhesive into gaps formed in joint of the test block and test block sleeve, flattening and compacting the gaps so as to form an annular adhesive ring on the surfaces of the gaps and carrying out indoor standing for 5.5 to 6.5 h until the annular adhesive ring on the surfaces of the gaps, thereby obtaining a treated test block; and step 5, loading the treated test block on an impermeability instrument for impermeability test. The method provided by the invention improves the efficiency of the impermeability test of concrete, reduces work intensity of testing personnel, saves cost and decreases environmental pollution.

The invention discloses a construction method of a waterproofing and heat preservation integrated compound system. The method comprises the following steps of (1) thorough cleaning of a base layer, (2) coating of a waterproof layer which is high molecular waterproof paint, (3) mechanical coating of a heat preservation layer which is made of foam polyurethane, (4) spray coating or blade coating of a shield layer, a leveling layer or a slope making layer, and (5) construction of decorative finishes. According to the construction method of the waterproofing and heat preservation integrated compound system, the design is reasonable, the construction difficulty is reduced, waterproofing and heat preservation operations are performed integrally, the purposes of high construction speed and saving of building materials are achieved, labor is saved, and the heat preservation and waterproof effects are good; the construction period is short and the maintenance frequency is low; and the heat preservation layer made of foam polyurethane plays a role in protecting the waterproof layer against damage by the outside.

The invention discloses an exterior wall insulated structure, which comprises an inner layer consisting of concrete, an outer layer arranged on the outer side of the inner layer and consisting of fiber cement motar and an insulated layer arranged between the inner layer and the outer layer. The invention also discloses a method for building an insulated exterior wall, which comprises the following steps of: a) fixedly arranging steel bars for the wall, and arranging the insulated layer between the steel bars of the inner layer and the outer layer; b) arranging a steel mould, and determining the arranging position of the steel mould according to the thickness of the wall; c) simultaneously casting concrete on the inner side and the outer side of the insulated layer in the steel mould; and d) after the concrete is solidified, disassembling the steel mould. The exterior wall insulated structure is convenient to build; and because the concrete is simultaneously cast on two sides of the insulated layer in a fluid fit mode, the outer layer, the inner layer and the insulated layer are tightly attached, air gaps and moisture are difficult to generate in the middle, the insulation effect is improved and the service life is prolonged.

The invention discloses a laminating non-woven fabric special for a high-hygroscopic drying agent and a drying agent packaging bag made of the laminating non-woven fabric, and further discloses a preparation method of the laminating non-woven fabric. The laminating non-woven fabric for the high-hygroscopic drying agent is constructed by a PP (Propene Polymer) water-proof breathable film positioned on an outer layer, a PE (Polyethylene) spun-bonded non-woven fabric positioned on an inner layer, and a bonding agent bonded between the PP water-proof breathable film and the PE spun-bonded non-woven fabric. Through adoption of the laminating non-woven fabric, the high-hygroscopic drying agent can be packaged safely and reliably without water seepage.

The invention provides a top-plate-prefabricated underground space underground excavation building method, which comprises the following steps of: constructing a launching shaft and a receiving shaft at the two sides of an underground space to be built; dividing the underground space into a plurality of passages in separated arrangement, so that each passage is in communicated arrangement in a direction from the launching shaft to the receiving shaft; installing pipe joints into each passage by a pipe jacking method; installing an embedded grouting pipe communicated in a direction from the bottom wall to the side wall of a prefabricated top plate in a prefabricated top plate of each pipe joint; injecting waterproof paint to connecting seam points of adjacent passages through the embedded grouting pipe; removing adjacent side plates of the pipe joint at the adjacent passages and soil bodies between the adjacent side plates; connecting the prefabricated top plate of the pipe joint in positions of the adjacent passages through a metal plate; installing support units for supporting the pipe joints in the each passage; and casting reinforced concrete in positions of the bottom plate and the side plates of the pipe joints. The top-plate-prefabricated underground space underground excavation building method provided by the invention has the advantages that the construction cost is reduced; the construction quality is ensured; the construction method is simple; and the construction work efficiency is high.

Environment-friendly ecological-plant wall paint comprises, by weight, 20-40% of plant vine glue, 20-40% of kaolin, 20-30% of acrylate emulsion, 5-8% of refined tung oil, 0.3-0.5% of dispersing agent, 0.2-0.4% of wetting agent, 0.1-0.2% of defoamer and 5-10% of titanium dioxide, and the sum of all components is 100%. The plant vine glue is kiwi fruit vine glue obtained by crushing fresh kiwi fruit vines and soaking the crushed fresh kiwi fruit vines into water. By being made from the kiwi fruit vine glue, the environment-friendly ecological-plant wall paint has the advantages of durability, undifferentiation, original ecology, environment friendliness, health care, high resistance to pollution and weather, strong adhesive force and good waterproofness.

The invention discloses a disassembly and assembly floor. The disassembly and assembly floor comprises a floor body, wherein a square base plate is installed at the bottom of the floor body, the outer sides of the two opposite edges of the base plate are provided with buckles and clamping grooves respectively, the buckles are matched with the clamping grooves, a plurality of transverse supporting strips and a plurality of longitudinal supporting strips are arranged in the base plate, a criss-cross mesh structure is formed by the transverse supporting strips and the longitudinal supporting strips, a plurality of clamping buckles are evenly arranged on each transverse supporting strip, an inserting strip is arranged in the center of the bottom of the floor body, and the inserting strip is matched with the clamping buckles. Due to the facts that the base plate is arranged at the bottom of the disassembly and assembly floor, the base plate and other base plates can be connected in a clamping mode into a whole through the four edges, and the floor body is connected to the base plate in an inserted mode, the disassembly and assembly floor is not directly fixed on the ground, the floor body connected in the inserted mode can be easily replaced, replacement is low in consumption, and the disassembly and assembly floor is free of water seepage in humid weather.

The invention discloses a synthetic fuse with hard shielding protective case, which consists of insulating column (1) and fuse with insulating case (2), wherein two ends of insulating column connects two ends of fuse and touching point separately; the pull-ring is fixed on the top of insulating case, whose two ends connect touching point with ground bar connecting lower touching point; the fuse contains two hard shielding protective case (3) on two ends of upper and lower insulating column; the hard shielding protective case contains two side-hinged half-case (31) with fuse shape; the semi-circle flute is set on the half case hinged connecting end; two half-case connects to form a chuckable column on two ends of insulating column; the screw-thread earhole is opened on the case surface in connection with bolt. The invention solves impoundment problem, which is reliable to operate and convenient to assemble.

The invention provides a high sealing energy-saving aluminum alloy door and window. The door and window comprises a window frame, first slide rails, second slide rails and a first glass frame; a top end and a bottom end at one side inside the window frame are provided with the first slide rails; the other sides of a top end and a bottom end inside the window frame are provided with the second slide rails; the first glass frame is installed at one side, away from the window frame, of the first slide rail; the second glass frame is installed at one side, away from the window frame, of the secondslide rail; a top end and a bottom end of the first glass frame and the second glass frame are provided with pulleys which are matched with the first slide rails and the second slide rails; the firstglass frame and the second glass frame are provided with vacuum glass at the inner side; a middle position at one end inside the first glass frame is provided with a clamp groove. The invention usesaluminum alloy as a material, push-pull design, simple structure, low price, and is not easy to rust, durable and energy-saving and environmental protection. The invention adopts vacuum glass, has good heat insulation and sound insulation effect.

The invention relates to the technical field of tunnel construction, in particular to a water stop clamping tool, a tunnel longitudinal water stop structure and a construction method. The water stop clamping tool comprisesa fixing part for mounting on a tunnel side wall template, and a connecting part connected with the fixing part and extending to be above a concrete pouring area; the connectingpart is provided with a mounting structure for connecting with a metal-plate-shaped water stop, and the relative position between the water stop and the connecting part can be adjusted, so that the water stop corresponds to a construction joint after the water stop is connected with the connecting part. The water stop clamping tool is arranged on an inverted arch trestle template, water stop partsare fixed by the connecting part, and the effective adjustment is carried out through the connecting part, thereby solving the problem of difficulty in positioning; and the water stop parts are changed to solve the problems of severe distortion and inconvenience in splicing of the existing water stop parts and achieve the purposes of accurate positioning, straightness and no distortion, and convenient connection of the water stop parts, and the construction quality and the construction safety of the tunnel waterproof construction are ensured.

The invention discloses an invisible floor drain which is characterized by comprising a base, a latticed stilt floor arranged in the base, and a face material plate arranged on the base, wherein the base comprises an inwards concave seat and a raised edge on the outer edge of the inwards concave seat, a drain hole is formed in the position of the inwards concave seat corresponding to a sewer pipe, and the size of the periphery of the base is matched with that of the face material plate; the latticed stilt floor is clamped in the inwards concave seat and comprises a grid layer and a plurality of support pillars arranged below the grid layer, wherein the bottom surface of the latticed stilt floor is matched with the inner bottom surface of the inwards concave seat, and the top surface of the latticed stilt floor is flushed with the raised edge; and a mounting hole is formed in the middle of the face material plate, and a floor drain cover plate is arranged in the mounting hole. As the drain hole is formed in the base and in the position corresponding to the sewer pipe, and the face material plate is placed on the base, the invisible floor drain is achieved, the water drain pipe is not required to be modified, the construction is more convenient, and the construction time is reduced.

The invention discloses a method for connecting a pipeline into an existing box culvert. The method for connecting the pipeline into the existing box culvert comprises the steps that firstly, an inspection well is vertically arranged close to the outer side of the embedded box culvert; secondly, a horizontal maintenance passage is arranged between the box culvert and the inspection well, and the two ends of the maintenance passage are made to communicate with the box culvert and the inspection well correspondingly; and finally, a guide-in opening is formed in the side wall of the inspection well, and the pipeline stretches into the inspection well through the guide-in opening and finally extends into the box culvert through the maintenance passage. By the adoption of the method for connecting the pipeline into the existing box culvert, an old pipeline can be connected into the box culvert, and thus management is facilitated; meanwhile, a gap does not exist between an embedded sealing ring and the junction end face of the box culvert, so that water seepage is avoided; and when the joint of two box culvert deforms, a good waterproof function can still be achieved through the embedded sealing ring and a compression ring, so that water seepage at the junction of the box culverts is completely avoided, and the safety of the junction and normal operation are ensured during connecting construction of the box culverts.