298results about How to "Does not affect construction" patented technology

The invention discloses the inflatable fire-resisting paint, comprising A and B. The A comprises epoxide resin, modified resin, catalyst, foamable agent, fire retarding agent, fluxing agent, color filler and smog inhibiting agent, and the B comprises color filler, curing agent and auxiliary agent. The fire-resisting paint has the advantages of good heat-insulating property, adhesion force and intensity. The coating has good water resistance, acid- alkali resistance, corrosion resistance and tenacity, and is not easy to drop. The paint can be used in rolled steel and aluminum products, especially the fireproof situation of oil factories.

The invention provides conductive paste for a crystalline silicon solar cell. The conductive paste comprises the following components in parts by weight: 100 parts of conductive metal powder, 1.0-10 parts of inorganic binder, 10-65 parts of organic carrier and 0.05-5.0 parts of conductive carbon. The conductive paste is excellent in conductivity; the photoelectric conversion efficiency of the cell is not influenced; and widely applied conductive paste for the crystalline silicon solar cell such as front-side silver paste, front-side seed layer silver paste, back-side silver paste and back electric field aluminum paste can be prepared.

The invention relates to a method for monitoring the deep settlement of a foundation, which is characterized in that: a liquid level static pressure monitoring method is adopted; in the liquid level static pressure monitoring method, a container provided with a pressure sensor and a secondary instrument is adopted, taken as a pressure measuring reference container and fixed on the ground which isnot influenced by the foundation settlement; the height of a pressure sensing surface of the pressure sensor is greater than that of any one embedded settlement instrument; the embedded settlement instrument consists of a shell, a three-way joint, a pressure sensor, a secondary instrument circuit and a serial bus circuit and is electrically connected with other embedded settlement instruments anda ground measurement and control system through an electric serial bus; and the measurement and control system records a pressure value of each detection point, converts the pressure value into a foundation settlement value, and performs curve fitting to obtain a foundation section settlement outline.

The invention relates to basement construction, in particular to a method for disassembling an inner concrete support of a basement foundation pit. The method for disassembling the inner concrete support of the basement foundation pit through sealed explosion comprises that: the basement foundation pit adopts a row-pile and siding wall type inner concrete support foundation pit supporting system. The disassembly method mainly comprises the following steps: support replacement of a structure, namely utilizing backfill of a basement and a force transferring belt to complete support replacement of the structure; disassembly of partial inner concrete support for supporting the foundation pit; construction of a basement structure on the force transferring belt; and disassembly of the inner concrete support through sealed explosion. The method for disassembling the inner concrete support of the basement foundation pit through sealed explosion shortens the construction period and guarantees safety.

The invention discloses a heating wire heating device and a construction method for winter concrete. The construction method comprises the following steps of: calculating and determining the total power of adopted heating wires according to physical parameters of concrete members, templates and a heat insulating material, and environmental temperature; determining a heating wire arrangement diagram according to a calculated result; determining a scheme for connecting a power line and the heating wires; pouring concrete, and laying plastic cloth isolating layers on the concrete members; arranging the heating wires on the plastic cloth isolating layers, and immediately covering heat insulating layers on the heating wires; and measuring temperature continuously for three days every 2 hours, and controlling the temperature of the concrete members to be between 10 and 20 DEG C by controlling the on / off of the heating wires. The power supply heating construction method is adopted, the temperature requirement due to strength increase of the winter concrete is met, the constraint of construction conditions and the difficulty of the conventional construction method are avoided, the construction is simple, the operation is convenient and the construction cost is saved. The invention is suitable for winter concrete construction.

The invention comprises a buried pipe heat exchanger system and an energy-lifting supply system and an energy-lifting supply system. It also includes an anti-seasonal balancing energy storage system. The buried pipe heat exchanger system includes a vertical buried pipe heat exchanger, an energy-lifting supply system water collector and a water knockout trap, an anti-seasonal balancing energy storage system water collector and a water knockout trap. The energy-lifting supply system includes a heat pump set, a geothermal energy water pump and an energy-lifting supply system water pump. The anti-seasonal balancing energy storage system includes a ground seasonal heat collector, a ground seasonal cold energy collector and an energy storage water pump.

The invention relates to a reinforcing method for dealing with the rupture of a pipe pile after the construction of the prestressed pipe pile. The procedures are as following: (1) the position of the rupture of the prestressed pipe pile is detected first; (2) the laitance on the inner wall of the pipe pile is cleared; (3) a reinforced skeleton frame is put into the pipe pile and the reinforced skeleton extends to the position three meters under the pipe pile from the pile top; (4) concrete under pile level is poured into the pipe pile, and the strength grade is not smaller than C30; (5) after the condensation of the concrete, the reinforced skeleton frame is led to be fixed with the reinforced steel in a cushion cap, and further the reinforced technique of the rupture of the pipe pile is finished. The reinforcing method of the invention can ensure the safety of the structure and does not affect the construction of the next working procedure; besides, the invention has the advantages of convenient construction, short constructing period, low cost and good effect.

The invention discloses a prefabricated assembled box culvert and a construction method thereof. The box culvert is in an assembled structure and consists of a reinforced concrete culvert body, wing walls, a foundation and deformation joints, wherein the culvert body of the box culvert is in an integral closed-type reinforced concrete framework structure formed by combining transition culvert joints, non-standard culvert joints and standard culvert joints. The culvert body and the wing walls adopt assembly and construction. By utilizing the prefabricated assembled box culvert, batch production can be performed in a factory, field assembly is realized, the construction progress of the culvert is accelerated, the construction period is shortened and the quality of the culvert is ensured. Therefore, the problems of long culvert construction period and difficult control on the quality during the current road construction can be solved.

The invention relates to a steel boxed cofferdam and the recovery method, especially a steel boxed cofferdam suitable for bridge bearing platforms with deep foundation and wide span, and the recovery method, comprising an upper section and a bottom section which are bolted together by a plurality of watertight angel steel flanges, wherein the upper section is composed of a plurality of upper panels made of steel sheets; each upper panel is laterally distributed evenly with a plurality of vertical ribs and vertically distributed evenly with a plurality of horizontal ribs; the upper panels are bolted together by the watertight angel steel flanges; the bottom section is composed of a plurality of bottom panels which are laterally distributed evenly with a plurality of vertical ribs; and the bottom panels are detachably fastened together. Besides the advantages of traditional caisson and steel plate cofferdam, the steel boxed cofferdam and the recovery method has other advantages of reusability, smaller influence on the neighboring constructions due to less amount of dug soil, low cost and good stability since the caisson is deeply buried to ensure a relatively large bearing and good water-resistant effect.

The invention discloses a reinforced bar anchor rod with a mechanical connection type reusable anchor rod body, which is used in the field of geotechnical engineering. The reinforced bar anchor rod is invented in order to realize the following three purposes: (1). after the anchor rod is not in use, the anchor rod body can be removed so as to be recycled, thereby the engineering cost is reduced; (2) the residues of reinforced bars do not exist outside a building restriction line so that the construction of adjacent unbuilt structures is not affected; and (3) resources are saved, and the energy conservation and emission reduction is facilitated. The reinforced bar anchor rod with the mechanical connection type reusable rod body comprises a reinforced bar anchor rod body, a pressure-bearing plate, a (connecting) nut, a supporting frame, an anti-bonding casing pipe, an anchor backing plate, a (locking) nut and the like. The principle of the reinforced bar anchor rod with the mechanical connection type reusable rod body is as follows: according to the positive and negative screw connecting mechanism of a thread, the anchor rod body is connected through a right-hand thread and is connected with a pressure-bearing disc arranged at the bottom of the anchor rod through a left-hand thread, and when the anchor rod is not in use, the anchor rod body is right-handed and rotated so that the anchor rod body is separated from the pressure-bearing plate; and a hollow lifting jack is used for pulling out the anchor rod body.

The invention discloses a construction method of a large-span overhead steel-structure truss. The construction method comprises the first step of preparation before construction, the second step of hoisting of embedded steel column bones and embedded steel beams of all sections; the third step of mounting of hoisting equipment; and the fourth step of field hoisting of the steel-structure truss. Compared with the prior art, by the adoption of the construction method, provided by the invention, of the large-span overhead steel-structure truss, the problem that in the hoisting process of the steel-structure truss, the construction period, the construction cost and the safety are seriously affected due to the facts that the hoisting work face is small, the mounting height is excessively high, the hoisting weight is too large, and the hoisting radius is excessively large can be solved,

The invention relates to a device for flexible connection between a masonry filler wall and a main body frame. The device consists of a connecting member A and a connecting member B, wherein the connecting member A is embedded in a frame column and a frame beam, and the connecting member B is connected with the connecting member A through a sliding groove and a sliding block. During the building of the filler wall, firstly, the connecting member A is arranged on a rod placement of the frame, an opening of the sliding groove of the connecting member A is enabled to be tightly attached to a formwork, and then, concrete is poured; the formwork is removed when the concrete reaches design strength, and the connecting member B is connected with the connecting member A. During the building of a wall body, a fiber grille is cut out and is tiled in mortar, and the two end parts of the fiber grille are turned over along the height direction of edge building blocks so as to be embedded into next layer; after the building of the wall body is completed, a flexible sealing material is filled in gaps between the wall body and the frame. The connection between the filler wall built by the device and the main body frame is firm, out-of-plane is stable, and the earthquake resistance is high; the frame column and the filler wall do not interact, so that the problem that a major structure is affected by the filler wall built settlement is solved; in a structural earthquake-resistant design, a structural natural vibration period reduction coefficient is not required to be introduced, and thus the design is facilitated.

The invention discloses a treatment method of plugging water stop construction for a foundation pit dewatering well to penetrate through a concrete base plate of a basement. The treatment method comprises the following steps of producing a water stop steel sleeve pipe; casting bedding concrete of a basement base plate; cutting a dewatering well strainer on a cushion surface; winding the lower end of the water stop steel sleeve pipe with bituminous hemp fibers, then inserting into the dewatering well trainer, filling seams with cement mortar and sealing; constructing a waterproof layer on the cushion surface of the basement base plate; banding reinforcing steel bars on the concrete base plate, and continuously dewatering; casting basement base plate concrete, and continuously dewatering; ending dewatering for the dewatering well one by one; and plugging the dewatering well. According to the treatment method disclosed by the invention, the double-wing-ring water stop steel sleeve pipe is adopted and is inserted into a dewatering well mouth; a plugging structure of the well mouth has the advantages of simplicity, scientificity, reasonability, safety, reliability and good water stop effect, and can well adopt to dewatering requirements of the basement base plate construction under different working conditions; and the dewatering demand of the basement reinforced concrete base plate in the construction process is met, and the problem of water stop plugging of the dewatering well penetrating through the basement reinforced concrete base plate when the dewatering is ended is well solved.

The invention discloses a high-position beam falling construction method in box beam erection, and belongs to the technical field of bridge construction. The construction method includes the following steps that concrete pouring is carried out on a pier cap for the first time, and box beam storing and jacking conditions and jack operation conditions in the beam falling process are met; the box beam is erected to the designed position, and supporting base mortar is not poured; the box beam is jacked, a crane sling of a bridge girder erection machine is not disassembled first, and box jacking and beam falling exercise simulation is carried out on a jack assisted by the bridge girder erection machine; the bridge girder erection machine returns to a beam field, the box beam is jacked to be higher than the design elevation by 420 mm, and a steel plate layer is arranged on four points to support the bottom of the box beam; a continuous beam longitudinal stress tendon is tensioned; the beam falls from the high position to the designed position, and the supporting base mortar is poured; concrete pouring is carried out on the pier cap for the second time. The high-position beam falling construction method is easy to operate and capable of shortening construction period and reducing construction cost, and construction is convenient.

The invention provides crystalline-type waterproof paint for preventing cement leakage, which belongs to the field of waterproofing work in constructional engineering, solves the technical problem of cement leakage prevention in the prior art, and is prepared from the following raw materials in weight ratio: 52.5 ordinary Portland cement, No. 95 granulated blast furnace mineral powder, penetrating agent, expanding agent, silica fume, quartz sand, modified bentonite, modified sodium silicate, complexing agent and crystallized precipitant. The cement-base waterproof paint provided by the invention enables concrete to be waterproof, is inorganic material, has the service life as long as concrete, improves concrete density to improve the concrete strength, and has the characteristics of low possibility of leakage, carbonization resistance, resistance to harmful substance permeation, simplicity in construction operation, low construction cost and the like.

The invention relates to a slab supporting construction method by reversely suspending a template. The slab comprises a steel structure and a concrete structure to be poured, wherein the steel structure comprises steel beams. The slab supporting construction method by reversely suspending a template comprises the following steps: (1) prefabricating concrete blocks, and mounting the concrete blocks on the steel beams according to the interval which is calculated by stress after the designed strength is achieved, wherein the height of the concrete blocks equals to that of a to-be-poured slab; (2) arranging a wood cushion block on each concrete block which is already arranged; (3) putting an upper keel on the wood cushion block which is already arranged to enable the upper keels to cross a plurality of steel beams; (4) mounting split suspenders in a suspending manner downward from the upper keels, and mounting corresponding lower keels for the lower ends of the split suspenders; (5) laying a template on the lower keels; and (6) pouring concrete. The invention further relates to the construction device in the construction method.

The invention relates to a connecting node of a beam and a column of building steel structures, in particular to a connecting node of a square steel pipe column and H-shaped steel beams for multi-layer and high-rise steel structures. The connecting node comprises a square steel pipe column, H-shaped steel beams and T-shaped steels; the T-shaped steels are arranged on the lateral wall of the square steel pipe column and the upper and lower wing edges of the H-shaped steels; webs of the T-shaped steels are connected with the wing edges of the H-shaped steel beams; and the wing edges of the T-shaped steels are fixedly connected with the lateral walls of the square steel pipe column. According to the connecting node of the square steel pipe column and the H-shaped steel beams, the connecting node is simple in structure, and the problem of construction difficulty in installing an internal separating plate is solved; a plastic hinge shifts outwards and better shock-absorbing property is achieved; the construction of an upper floor and the casting of concrete in the square steel pipe are not influenced; and the steel consumption is low. Therefore, the connecting node has high economic and social benefits.

The invention relates to a tunnel geological advance forecasting method based on mechanical energy nondestructive detection. The method is characterized in that seismic wave receiving points are distributed on a tunnel face and within range of two-meter-deep non-excavated surrounding rocks around the tunnel face, seismic wave excitation points are distributed on the tunnel axis of certain distance within an excavated range behind the tunnel face and the surrounding range or on a bottom plate parallel to the tunnel axis in turn, and a gasket plate is distributed on the position of each excitation point; and after drilling at the seismic wave receiving points, detectors are distributed in the hole bottoms, and the detectors are connected with a seismic wave acquisition instrument via signal transmission lines so that stable, controllable and safe mechanism energy is utilized to excite seismic wave under the premise of no damage to tunnel lining, seismic reflection wave is enabled to reach receiving holes in "first time" by reasonable distribution of the positions of the excitation points and receiving points and thus tunnel geological advance forecasting can be realized.

The invention discloses a tunnel arrangement structure, particularly discloses a multi-purpose tunnel arrangement structure, belongs to the technical field of design and construction of hydraulic and hydro-power engineering buildings and provides the permanence and temporariness combined multi-purpose tunnel arrangement structure used in the hydraulic and hydro-power engineering construction period and in the operation period after engineering construction. The multi-purpose tunnel arrangement structure comprises a tunnel body and a sill-containing lock chamber arranged on the tunnel body, wherein the lock chamber comprises a flow guide lock chamber body and a water diversion and flood discharge lock chamber body which are arranged horizontally and in parallel, and the sill elevation of the water diversion and flood discharge lock chamber body is larger than that of the flow guide lock chamber body.

A seismic-reducing floor slab with cavities is characterized by comprising a floor slab (1), at least one cavity (2) preserved in the floor slab (1), and at least one damper (3) preset in the cavities (2). The dampers are scattered and distributed in the cavities of the floor slab so that the great benefit is to achieve seismic reduction and disaster prevention without affecting functional use of a building, and the seismic-reducing floor slab with cavities has the advantages of low manufacturing cost, easiness in construction, no maintenance and the like. The seismic-reducing floor slab with cavities has a fine seismic reducing effect for distance earthquakes, near earthquakes and even seismic centers.

The invention discloses a high-temperature-resisting anti-corrosive thermal-insulation composite lining structural member and a manufacturing method thereof. The high-temperature-resisting anti-corrosive thermal-insulation composite lining structural member comprises a metal shell, a light thermal-insulation lining material layer, a cellucotton layer and an anchor nail, further comprises a dew-point corrosion preventing coating layer, and can also comprise high-temperature-resisting alloy-steel wires and a high-temperature-resisting fiber paper layer. The manufacturing method comprises the following steps of welding and fixing the head of the anchor nail on the inner wall of the metal shell body, blade-coating the dew-point corrosion preventing coating layer, applying the light thermal-insulation lining material layer, and spray-coating the cellucotton layer. According to the invention, a composite lining layer is formed by the dew-point corrosion preventing coating layer, the light thermal-insulation lining material layer and the cellucotton layer through a special structure, which play the roles of resisting high-temperature, preventing dew-point corrosion and insulating heat simultaneously, and ensures that the composite lining layer can be combined with a shell body of a thermal facility into a firm integer; meanwhile, the composite lining structural member has better strain property on expansion on heating and contraction on cooling, and makes petrochemical thermal power equipment be used for a long time in the reliable and economical premise.

The invention relates to an indoor building construction hoist with an elevator shaft as a channel. The indoor building construction hoist comprises an elevator car, a main support and a falling protector. The elevator car is fixed to the main support. The main support is arranged on a guide rail support in a sliding manner. The guide rail support is fixed to a wall of the elevator shaft. An electric conduction sliding way is fixed to the wall of the elevator shaft. A drive mechanism making the main support and the elevator car integrally run up and down along the guide rail support is arranged between the main support and the guide rail support, and the electric conduction sliding way provides power for a motor in a gear and rack drive mechanism. The indoor building construction hoist is integrally installed in the elevator shaft of a building, and influences on usage of the hoist due to the severe weather can be avoided; the periphery space of a building body is not occupied, secondary construction of the building is not affected, and the construction cost is reduced; the guide rail support can be fixed to the inner wall of the elevator shaft joint by joint, and the safety coefficient is increased; installing is synchronously conducted along with construction of the building body, the utilization rate of the hoist is increased, and the building finishing time is shortened; and construction of peripheral protection facilities is eliminated, and cost input is reduced.

The invention discloses a cyclic utilization and treatment method of fracturing backflow liquid, relates to the technical field of fracturing reformation of oil and gas reservoirs and in particular relates to the cyclic utilization and treatment method of the fracturing backflow liquid. The cyclic utilization and treatment method comprises the following steps: removing macromolecular organic matters by utilizing microorganisms, so as to reduced COD (Chemical Oxygen Demand); adding efficient fungicide and killing bacteria in the backflow liquid; adding a metal ion removing agent, and removing divalent and trivalent metal ions in the backflow liquid; adding a deoxidant to remove residual gel breaking agent in the backflow liquid; adding a flocculating agent and carrying out flocculation and sedimentation; transferring supernatant into a clean water tank and enabling lower-layer flocculating liquid to enter a pressure filter for filtering; transferring filtrate into the clean water tank; adding a pH (Potential of Hydrogen) regulator, and inhibiting cross-linking effect of residual cross-linking agent. The method has the advantages of simple process, convenience for operation, high treatment efficiency, low cost, high field applicability and the like.

The invention discloses a flexible connection device for a masonry filler wall and a main body frame and a building method of the filler wall and belongs to the technical field of buildings. The flexible connection device comprises a connecting piece A capable of being embedded in the main body frame and a connecting piece B connected with the connecting piece A, wherein the connecting piece A is formed by arranging four symmetric L-shaped anchoring ribs on one side of a vertical plate, the connecting piece B is provided with a U-shaped clamping port capable of clamping the filler wall, a transverse plate is arranged at the bottom of the U-shaped clamping port, two symmetric tie holes are formed in the transverse plate, and the vertical plate of the connecting piece A is connected with a bottom plate of the U-shaped clamping port of the connecting piece B through on-site welding. The filler wall built by the aid of the connection device is firmly connected with the main body frame; a frame column is separated from the filler wall, mutual action between the frame column and the filler wall is blocked, the rigidity contribution of the filler wall to the concrete main body structure is eliminated, and the technical problem of the settlement effect on the main body structure due to building of the filler wall is thoroughly solved.

The invention discloses a preparing method for a styrene-free low-volatile-matter unsaturated polyester resin. The preparing method is characterized by comprising the following steps: (1) adding dihydroxy alcohol, saturated and unsaturated diacid / dianhydride, dicyclopentadiene and a polymerization inhibitor according to a proportion; (2) introducing an inert gas nitrogen or carbon dioxide to remove air from a reactor; (3) starting stirring, raising the temperature to 80-90 DEG C, keeping a reaction for 1 hour, then slowly raising the temperature by controlling the temperature raising rate to be 10 DEG C per 10 minutes until the temperature reaches 160 DEG C, carrying out prepolymerization for 1 hour, controlling the temperature at a reflux condensed water knockout drum outlet to be 102 DEG C or lower, then raising the temperature to 200 DEG C, carrying out polycondensation and water knockout for 5-7 hours, raising the temperature to 210 DEG C when the resin acid value is reduced to 50 mgKOH / g, and continuing to react for 1 hour; (4) when the acid value is detected to be lower than 40 mgKOH / g, reducing the temperature to 100 DEG C, adding acrylate monomers for dilution, mixing uniformly, cooling, and then discharging. The styrene-free low-volatile-matter unsaturated polyester resin disclosed by the invention can be widely applied to prepare unsaturated polyester coating, and is free of styrene, so that the harm caused by styrene is overcome fundamentally.

The invention discloses a tunnel support device of a coal mine goaf. The tunnel support device comprises more than two steel pipes, wherein the steel pipes are arranged along the surrounding contour of a tunnel and are vertical to the plane of the surrounding contour of the tunnel; more than two steel brackets are arranged in an area defined by the steel pipes in a surrounding manner and are vertical to the steel pipes; more than two anchor bolt holes are formed in each steel bracket, an anchor bolt is arranged in each anchor bolt hole, a flexible formwork and a reinforcement net are sequentially arranged on each anchor bolt in a penetrating manner, concrete is arranged in each flexible formwork, and the two adjacent flexible formworks on the same steel bracket are mutually connected. The tunnel support device has the advantages that the strength of the support structure is high, and the stability and reliability are realized. A construction method of the tunnel support device of the mine coal goaf has the advantages that the difficulty in support operation is low, the support effect is good, the construction speed is high, the removal of the formworks is not needed, and the suitability is high.

The invention relates to a settlement test method for an embankment filling construction. In the invention, a settlement plate is laid flat; a protective cover is placed above the settlement plate; the opening on the lower part of the protective cover faces a connecting steel tube on the settlement plate; the filling height of the embankment is flush with the top part of the protective cover; if the embankment uprises, then a cushion block is placed on the top part of the protective cover repeatedly; a box staff is spanned over any section of a settlement tube after taking away the protectivecover; and the elevation of the settlement plate is measured by using a balance level. The settlement test method for embankment filling construction overcomes the defects that a conventional construction vehicle must make a round when meeting a conduit extending out of a ground surface, and that the embankment settlement cannot be measured or cannot be measured accurately caused by easily breaking or bending the conduit. In construction, the settlement tube is embedded under a marked elevation of filling so as to prevent the construction vehicle from crashing the settlement tube aslant; a deformation space is reserved, the structure is simple, operation is convenient, construction is easy, cost is low and application effect is very good.

The invention provides a liquid anti-segregation agent, which comprises: 40-50 weight parts of a monomer A, 2-6 weight parts of a monomer B, 0.1-1 weight part of a chain transfer agent, 1-5 weight parts of an initiator, and 150-200 weight parts of water. Specifically, the monomer A is any one of or a mixture of several of 2-acrylamide-2-methylpropanesulfonic acid, methylallyl polyoxyethylene ether, sodium methallyl sulfonate and sodium allyl sulfonate, the monomer B is any one of or a mixture of several of N, N-dimethacrylamide, acrylamide, N-hydroxymethyl acrylamide, acrylic acid and methacrylic acid, the initiator is a 30wt% hydrogen peroxide aqueous solution and ascorbic acid, and the chain transfer agent is mercaptoethanol. The liquid anti-segregation agent provided by the invention has the function of reducing the surface tension of concrete while having water retaining capacity, and can maintain the viscosity and fluidity of concrete.

A three-dimensional heating and cooling house relates to a house, in particular to a house with heating and cooling function. The roof and / or the wall and / or the floor are provided with a heating and cooling cavity and the heating and cooling cavity is provided with heating and cooling tubes. The two ends of the heating and cooling tubes are extended out from the cavity so as to form an inlet and an outlet of heating source and cooling source, the inlet and the outlet are covered with bushings, and a connecting pipe is arranged between the bushings. Because the roof and / or the wall and / or the floor are provided with a heating and cooling cavity, the hot fluid and the cold fluid flowing through the heating and cooling tubes utilizes the heat dissipation of the roof, the wall and the floor to emit the hot air or the cold air on one hand, and on the other hand a heat dissipation hole and a cold dissipation hole or a grate are utilized to emit the hot air or the cold air in the room, so the effect of heating and cooling is very good. The heating and cooling cavity has the advantages of low thickness, simple structure, low price, no influence on the normal construction of the house by building the cavity, good load bearing, low construction cost and good heating and cooling effect. The invention is used in the industrial and civil buildings with various heating and cooling requirements.

The invention provides a directional drilling crossing pipeline outer coating structure and a machining method thereof. The directional drilling crossing pipeline outer coating structure is formed by wrapping the outer surface of a corrosion-resistant layer with a composite protection layer. The composite protection layer is made of pressure-resistant and friction-resistant composite materials formed by mixing resin, fibers and an additive, wherein the resin is photocuring composite resin, the fibers are made of epoxy glass reinforced plastic and / or dual-layer sintered epoxy powder, and the additive is a solvent-free epoxy abrasion-resistant coating. The composite protection layer has high mechanical damage resistance, and when directional drilling crossing encounters complex geological conditions and hard underground structures, damage to the corrosion-resistant layer can be avoided to the greatest extent. The directional drilling crossing pipeline outer coating structure can resist corrosion of a chemical solvent, the phenomenon that a thermal shrinkage sleeve is possibly disengaged in the construction process is completely avoided, and the effect of protecting a pipeline welding junction is greatly improved; and the curing time is short, construction is easy, the construction period is not affected, and the directional drilling crossing pipeline outer coating structure is not influenced by weather elements or field construction conditions, greatly saves manpower and material resources, is high in operability, is easy to implement and popularize, and has broad industrial application prospects.