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 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 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 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 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.

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 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 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.