2135results about How to "Simple construction method" patented technology

A basement engineering waterproof and drainage method is provided. The wall footing of the outside wall in basement engineering is embedded in watertight or micro-watertight soil rock layer or cement soil layer. The wall footing intercepts water by a thin-part structure. The cushion of the basement engineering soleplate and the falling layer of the top board are composed of combined water-proof layers. The late poured band, the movement joint and the horizontal construction joint at the lower part of the outside wall are treated by a water-proof structure combined with waterproofing measures. The basement engineering is provided with a drainage system. The groundwater and surface water at the soleplate are drained into city drainage pipelines via a soleplate part of the drainage system. The rainwater of overburden layer bottom of the top board is then drained into city drainage pipelines via the indoor part of the drainage system. The invention is designed by adopting a one-body method of arranging the basement engineering waterproofing, drainage and anti-floating as well as underground engineering space enclosing structure and pipelines, thereby shortening the construction period, reducing the engineering cost, increasing the durability and reliability of underground building space enclosing structure and waterproof layer as well as pipelines.

The invention discloses environment-friendly diatom ooze wall material powder and a wall material as well as a preparation method and application thereof. The diatom ooze wall material with macromolecule sieve structure is prepared by taking a plurality of natural environment-friendly non-metal material having strong adsorbability and good plasticity as main materials through a simple process. The environment-friendly diatom ooze wall material powder has the advantages of low cost, air purification, moisture absorption, deodorization, inflaming retarding, heat insulation, easy popularization,and the like.

The invention discloses a construction method of a multi-dimensional constellation graph, and a code modulation system and a demodulation and decoding system based on the multi-dimensional constellation graph. The multi-dimensional constellation graph is a K-dimensional constellation graph, and the construction method comprises the following steps of: taking M points of a K0-dimensional constellation graph, wherein K0 is less than K; expanding dimensions of the K0-dimensional constellation graph to get a K0L-dimensional constellation graph; performing constellation rotation on the K0L-dimensional constellation graph to get a K0L-dimensional rotated constellation graph; and obtaining the K-dimensional constellation graph from the K0L-dimensional constellation graph. The construction method provided by the invention is simple; the system using the multi-dimensional constellation graph can significantly reduce Shaping loss and improve diversity order of the system so as to obtain diversity gain in a fading channel; and overall performance of a receiving end using the construction method can approach the channel capacity in both low and middle spectrum efficiency and various channel conditions.

The invention discloses a method for constructing a cable system of a spatial self-anchoring type suspension bridge. The method is characterized in that a cat path and a main cable are arranged on the vertical surface to form a hollow cable type; and the completed bridge linearity of the main cable is formed through traversing the main cable and stretching slings. Through the proposal, the method has obvious technical characteristics: 1. the main cable is arranged on the vertical surface and is favorable for braiding the cable; 2. the cable tightening operation is carried out on the vertical surface so as to be favorable for tightening the cable and ensuring the gap rate; and 3. firstly, a temporary inhaul cable is used to traverse the main cable in order that the main cable linearity is close to a completed bridge state; and secondly, the sling is stretched and is favorable for controlling the spatial angle of a cable clip and positioning the sling in a transverse oblique anchor tube. The method has the advantages that the construction method is simple, is favorable for the braiding and molding of the main cable and the spatial positioning of the angles of the cable clip and the slings and realizes the completed bridge linearity of the main cable.

The invention discloses a tunnel underground excavation and lining constriction trolley and a tunnel underground excavation and lining construction method. The tunnel underground excavation and lining trolley comprises a trolley support system and a trolley formwork system; the trolley support system comprises a support system frame, a vertical hydraulic device, an upper vertical pole, a horizontal hydraulic device and a horizontal pole; the trolley formwork system comprises a formwork system frame, a jacking hydraulic oil cylinder, a longitudinal beam, a chord member and a formwork adjusting lead screw. According to the tunnel underground excavation and lining constriction trolley and the tunnel underground excavation and lining construction method, a CRD construction method is effectively improved, by means of the trolley support system, a temporary support system can break median lamella and an inverted arch in one time, the construction period is greatly shortened, and the construction cost is saved; secondary lining is achieved through one-time steel bar binding and pouring, construction joints caused by multiple formworking are reduced, water seepage hidden danger is reduced, and the strength of secondary lining, the smoothness of the outer surface and the overall flatness of concrete are guaranteed.

The invention discloses a soft and weak wall rock tunnel advance reinforced support construction method. When a pipe roof advance support construction is carried out on one segment of the constructed tunnel, the construction method comprises the following steps: (1) support arch and guide pipe construction, wherein a plurality of guide tubes for carrying out guiding on a plurality of pipe roof pipes are arranged on a support arch; each pipe roof pipe comprises a pipe body and a drill bit; each pipe body is formed by splicing a plurality of pipe joints; each drill bit is coaxially arranged at the front end of the pipe body; the pipe joints are spiral steel pipes; the pipe roof pipes are first pipe roof pipes or second pipe roof pipes; and the first pipe roof pipes and the second pipe roof pipes are staggered; (2) drilling machine and slip casting machine installation and emplacement; (3) pipe roof advance support construction, which comprises the following processes: first pipe roof pipe drilling and synchronous grouting construction, final hole grouting construction of the first pipe roof pipes, second pipe roof pipe drilling and synchronous grouting construction and final hole grouting construction of the second pipe roof pipes. The method disclosed by the invention is simple in steps, reasonable in design, simple and convenient to construct and good in support effect; and the soft and weak wall rock tunnel advance reinforced support process can be simply, conveniently and quickly finished.

The invention discloses a fabricated prestressed heat-resistant cement concrete pavement and a construction process thereof. The pavement is formed by splicing a plurality of fabricated prestressed heat-resistant pavement plates which are parallelly paved and connected into a whole through transverse prestressed steel stranded wires, wherein each fabricated prestressed heat-resistant pavement plate comprises a fabricated prestressed pavement plate which consists of a plurality of pavement plate blocks connected through connecting plates, and a vermiculite concrete heat-resistant paving layer which is paved on the fabricated prestressed pavement plate; each pavement plate block comprises a plurality of common plates which are connected into a whole through longitudinal prestressed steel stranded wires; and the connecting plates and the common plates are cement concrete prefabricated plate blocks. The construction process comprises the following steps of: 1, prefabricating the cement concrete prefabricated plate blocks; 2, transporting the cement concrete prefabricated plate blocks; and 3, paving the pavement. The pavement is reasonable in structural design, convenient to construct, low in input cost and short in construction period, and has heat resistance, construction quality is easy to ensure, and various practical problems of the traditional fabricated cement concrete pavement can be solved.

The invention belongs to the technical field of design and construction of tunnel and underground engineering and especially relates to a rock stratum underground excavation three-story subway station umbrella cover structure and a construction method thereof. The structure comprises a main arc structure and a reinforced concrete inverted arch. an underground two-story side wall and an underground three-story side wall are installed between the main arc structure and the reinforced concrete inverted arch. The main arc structure comprises an arch portion second lining middle segment and arch portion second lining side segments; the arch portion second lining side segments are positioned at two sides of the arch portion second lining middle segment; the reinforced concrete inverted arch comprises an inverted arch second lining middle segment and inverted arch second lining side segments; the top of the inverted arch second lining middle segment is provided with two bottom girders; the bottom of the arch portion second lining middle segment is provided with two top girders; steel-pipe columns are installed between the top girders and the bottom girders. The structure and the method of the invention is suitable for supporting structure and construction of weak rock stratum dug three-story subway station and large sections of underground space; the structure has good stability and increased construction efficiency.

The invention discloses a construction method for reinforcing and repairing an integral wall of ancient architecture. The construction method comprises the steps of site survey and work preparation, wall foundation reinforcement, wall surface treatment, wall reinforcement and wall maintenance. The construction method is simple and easy to implement, scientific and convenient, and has the advantages of fast construction progress, low construction cost, high working efficiency and wide application range. According to the principle of 'repairing the old as the old', the cultural relic value of ancient architectural elements is kept, only damaged parts are repaired and reinforced, and the whole wall does not need to be replaced. The ancient architecture wall is priceless in cultural relic value. By using the method, original parts can be kept when the ancient architecture wall is damaged and loses bearing capacity, and a bearing function is recovered; the method conforms to the principle of 'repairing the old as the old', and is of great significance to the protection of the national cultural relics.

This is an underground hidden digging separated working method it is double layers or multiple layers complex lining brick structure. It contains: Use the existing shallow bury hidden digging technology to finish the lining bricks structure upper parts, and use the routine technology to finish the original support and protection. After finished the original protection and support of vault part, to spread out the water-proof plate and finish the middle separated plate to use the ground model, and pouring cement slurry to make the upper part structure. Under the protected of middle separated plate, then to make the structure under the middle separated plate, to finish the whole working process finally.

The invention discloses a prestressed ultrahigh-performance concrete continuous box girder bridge which comprises piers and an ultra-high performance concrete box girder. The box girder has a wholly or partially external prestressed system in the longitudinal direction of the box girder bridge and mainly comprises a top plate, a bottom plate, a web plate and a diaphragm plate, wherein at least one of the top plate, the bottom plate, the web plate and the diaphragm plate is a sheet. The construction method of the prestressed ultrahigh-performance concrete continuous box girder bridge is a segmental prefabricating and suspended-splicing method and mainly comprises the following steps: constructing pile foundations and the piers, mounting blocks No.0 on the piers, splicing all sections of the box girder symmetrically on two sides of the blocks No.0 in a suspending way, erecting side spans by using a support erecting method, carrying out side span closure, carrying out midspan closure, and stretching prestressed steel strands in all construction stages to finish construction. The prestressed ultra-high performance concrete continuous box girder bridge has the advantages of simple structure and light dead weight, the crack risk of the box girder is reduced, and the method is suitable for constructing a long-span bridge.

The invention relates to inorganic thermal-insulation mortar used for building exterior walls of buildings and a preparation method thereof. The invention is characterized in that the thermal-insulation mortar comprises the following components in part by weight: lightweight aggregate 100-150, binding material 100-150, fly ash 10-60, and additive 8.72-11.36. Compared with the prior art, the inorganic thermal-insulation mortar has the advantages of high weather resistance, high aging resistance, long service life, high fireproofing and flame-retarding performance, energy conservation and environment protection.

The invention discloses a construction method for adding a water lowering well in a water collecting well, which comprises the following steps of: driving a prepared round steel pipe water lowering well structure into a bottom wall of the water collecting well until the scale height required is met; removing the earth in the round steel pipe; refilling gravels on the bottom of the round steel pipe to form a water filtering layer; placing a water pump in the round steel pipe for pumping water according to water level situation; paving in sequence a cushion layer, a waterproof layer and a waterproof protection layer on a side wall and a bottom wall of the water collecting well for construction recovery; binding steel bars on the side wall and the bottom wall of the water collecting well out of the waterproof protection layer, and pouring concretes on the bottom wall and the side wall of the water collecting well; and blocking the top of the round steel pipe. By means of the construction method provided by the invention, the water lowering well has the advantages of simple and convenient construction method, fast construction speed, low cost and high intensity, is capable of effectively solving the problem that the water cannot be timely discharged to the specified depth below a bottom plate on the condition that a water stop curtain is slightly cracked to leak the water to damage the waterproof layer of the water collecting well nearby and satisfying the basement construction requirements, and is simple in structure.

The invention discloses a super-hydrophobic surface with a moisture evacuating function and a preparation method thereof, wherein the super-hydrophobic surface is prepared from the following raw materials in parts by weight: 4-6 parts of silicon source, 4-5 parts of silizane and/or siloxane reagent, 50-80 parts of organic solvent, 6-10 parts of distilled water, 5-8 parts of thermosetting resin and/or organic silicon resin and 1-4 parts of curing agent. The preparation method comprises the following steps: adding the silicon source into the organic solvent; adding the distilled water and the silizane and/or siloxane reagent; adding the thermosetting resin and/or organic silicon resin; adding the curing agent; covering the treated substrate surface. The super-hydrophobic surface disclosed by the invention is common and easily available in raw materials and low in cost, and the preparation method is simple in process, simple in process and convenient to construct, and can be applied to various substrate surfaces. The contact angle of the obtained super-hydrophobic surface to water maximally can reach 160 degrees, and the rolling angle minimally can reach 2 degrees. The super-hydrophobic surface maintains a dry state to micro-moisture, and has good mechanical property and durability.

The invention relates to self-adhesion waterproof rolls used for a road bridge. The self-adhesion waterproof rolls used for the road bridge comprises, by weight, 40-60 parts of asphalt No.90, 10-20 parts of softening oil, 3-10 parts of styrene-butadiene-styrene block copolymer, 2-5 parts of butadiene styrene rubber, 3-8 parts of reclaimed polypropylene, 0.5-3 parts of high temperature modifier, 5-15 parts of rubber powder and 25-40 parts of stuffing. The self-adhesion waterproof rolls used for the road bridge has excellent high-and-low temperature resistance performance, is imperious, impact-proof, anti-shearing and large in bonding strength, and has self-healing creep performance. Fire baking is not required in construction, cold construction is adopted, the construction method is simple, and the construction efficiency is high.

The present invention relates to preparation of a municipal dewatering sludge based coating material for seal of landfill site, is mainly used for seal covering of the landfill site, and belongs to the field of environmental geotechnical engineering. The municipal dewatering sludge is employed as a basis material and modified to be used in seal covering of the landfill site. An air-out layer of the coating material for seal of landfill site has good gas guide performance; an impervious layer is not easily cracking and has low permeability; and a vegetation nutrient layer has rich nutrients and good hydrophobicity. The covering material of the present invention realizes resource utilization of municipal dewatering sludge and saves land resource; the covering material can be produced by industrialized production, has a simple construction for application to seal covering of the landfill site, and has advantages of simpleness, fastness, strong operability, high survival ratio of plants, so as to guarantee quality of seal covering of the landfill site, meet various technological indexes of seal of the landfill site, and greatly improve the landfill environment.

The invention discloses a special aluminum square tube ceiling and a construction method thereof. The special aluminum square tube ceiling comprises a hanging steel bar keel hung under a concrete top plate, a cross-bracing keel and an aluminum square tube ceiling connected at the lower end of the cross-bracing keel, wherein the aluminum square tube ceiling is formed by the spaced distribution of a plurality of aluminum square tubes with U-shaped sections; the hanging steel bar keel is an unequal-length keel; the aluminum square tube ceiling presents the shape of a curved surface; two continuous aluminum square tubes are butt-jointed by a woody connection fitting, the two ends of the woody connection fitting are respectively embedded in U-shaped spaces of the aluminum square tubes, and the two U-shaped edges of the aluminum square tubes are extended to form bent edges which are symmetrical inwards and are covered on the two upper edges of the woody connection fitting. With the advantages of simple structure, labor/time saving, quick construction, low cost, accurate ceiling shape positioning and smooth curve, the invention is applicable to the building ceilings in various curved shapes.

The invention discloses a method for controlling a floor heave of a dynamic pressure tunnel. The method comprises the following steps of: after symmetrically constructing drilling holes with different longitudinal included angles alpha in two side directions by taking the center of the tunnel cross section as the boundary on a tunnel base plate in a mining high-stress environment, mounting a hydraulic expansion anchor rod, injecting high-pressure water into the hydraulic expansion anchor rod, and stopping high-pressure water injection when the high-pressure reaches 30MPa; and constructing row by row according to the row distance until finishing the construction of the whole tunnel of the tunnel base plate, which is easy to have the floor heave in the mining high-stress environment. The anchoring force of the hydraulic expansion anchor rod does not change much with the differences of the properties of surrounding rocks, so the hydraulic expansion anchor rod is especially suitable for supporting the dynamic pressure tunnel base plate and provides a new way for controlling the floor heave of the dynamic pressure tunnel. The method has the advantages of simple construction method, convenient operation, low cost, low working intensity, high mounting efficiency, no pollution and remarkable economic efficiency.

The invention discloses a soft soil area underground continuous wall leakage detecting system, solves such defects as complex construction, difficult measurement and lower accuracy of measured results, and measures specific positions of leakage points more accurately. The transport process of underground ions and the gathering process of the underground ions are observed in real time, so that the specific positions of the leakage points can be obtained more quickly and accurately. The soft soil area underground continuous wall leakage detecting system relates to a underground continuous wall, an observation well, a precipitation well, a soft soil layer, an aluminum electrode, an electrifying device, an electrifying device positive pole, an electrifying device negative pole, an in-pit ground, an out-pit ground, the leakage points, aluminum ions, a sampling device, a slide cover, a bracket, an opening cylinder, a gauze, a separation plate, a round hole, a sensor, a circuit, a circuit fixator, a circuit negative pole and an acquiring system. The underground continuous wall is not limited by thickness and depth. The observation well is used for observing change of an underground water level on the outer side of a foundation pit; the gap and the depth of the observation well are determined according to actual engineering; and the observation well also can serve as a foundation pit outer side precipitation well. The precipitation well is a foundation pit inner side precipitation well, and can be used for observing a underground water level on the inner side of the foundation pit. The soft soil layer is a soil layer suitable for an electroosmosis method.