38results about How to "Small project scale" patented technology

The invention provides a kind of underground digging and adding floor construction method. It makes use of the underground space as construction field, and makes the roof of present structure as natural cover board, so it divides the whole underground structure into several building sections to underground dig step by step and complete the floor addition of the underground structure. It don't need to dig widely, won't affect the normal ground traffic, and don't need to move pipelines. The project is small and can save investment. It's especially adopted to building underground to add floor in the center of the city. It's suitable for underground digging to rebuild the one floor cellar into two floor underground structure.

The invention discloses a micro-grid system of a grid-connected island power grid. The system comprises an energy storage system, a power distribution network load system, a diesel power generating system, a wind driven generator system, an optical fiber communication network, and a micro-grid energy coordinated optimization and control system. The energy storage system accesses an AC bus of an island power grid through a boosting transformer. The power distribution network load system makes user load ends connected with a power distribution network load transformer through fast solid-state switches. The diesel power generating system is used as a main power supply when the micro-grid system is in isolated island operation. The wind driven generator system comprises an asynchronous wind generating set. The stator output sides of the asynchronous wind generating set are connected in series with back-to-back converters. The output of the back-to-back converters is transmitted to the AC bus of the island power grid through boosting. In the island power grid, optical fibers are set up along a power transmission and distribution line, and optical fiber communication transmitter-receiver devices are installed on power supply points, load points, and control terminals, so as to form the optical fiber communication network of the island power grid. The micro-grid energy coordinated optimization and control system collects island power grid operation data in real time through the optical fiber communication network, and releases control instructions.

The invention discloses a drainage test system by low-path embankment and a method thereof, which belong to the technical field for testing the low-path embankment drainage effect of fine grained soils on highways. The invention has the structure that a non-watertight glass tube is connected between an organic glass model casing and the bottom of a graduated water tank. The invention adopts the principle that the water level of the water tank is used for imitating the rising and falling of the underground water level, and that waterproof and drainage facilities paved in the model grooves and embankments filled in by layer are used for imitating the working condition of water-proof and drainage materials in actual projects. The invention can intuitively obtain the change laws of the water content, pore water pressure and suction of low-path embankments before and after paving various waterproof and drainage materials, thereby testing the usage effect of various waterproof and drainage facilities. The invention also has the advantages of good approximation to actual projects, reasonable scale, imitable working condition, and the like, which ensures the design and construction of low-path embankment drainage scientifically and technically.

The invention provides a station-front turning-back island-type station arrangement structure of urban rail transit. A first main line and a second main line are arranged on the two sides of an island-type platform correspondingly; a first curve is connected with the first main line and a scissors crossover, and a second curve is connected with the second main line and the scissors crossover; anda first interval main line and a second interval main line are connected through the scissors crossover. According to the station-front turning-back island-type station arrangement structure of the urban rail transit, the total length of a station is shortened effectively, and the project scale is reduced; the travelling distance of train turning-back operation is shortened, and the efficiency ofthe train turning-back operation is improved; and applicability is wide, flexibility is high, arrangement structures of overhead stations and underground stations can be met, and the island-type station arrangement structure is suitable for the multiple platform widths.

The invention discloses a partial cable-stayed bridge of a fish bone beam structure. The partial cable-stayed bridge of the fish bone beam structure comprises a main beam, a plurality of bridge towers and stayed cables, wherein anchoring ends or saddle areas of the bridge towers are arranged on the main beam, the stayed cables are arranged between the main beams and the bridge towers, part of stayed cables further comprise multiple vertical walls corresponding to the bridge towers one to one, the vertical walls are fish bone walls, the main beam is an equal-altitude box type bridge panel, columns of the bridge towers are embedded in the corresponding fish bone walls, and the tops of the columns of the bridge towers extend out of the fish bone walls. One end of each stayed cable is tensioned and anchored on the main beam, and the other ends of the stayed cables are anchored at the tops of the bridge towers or continuously pass through the saddle areas. The partial cable-stayed bridge of the fish bone beam structure has all the advantages of a traditional cable-stayed bridge. The structural rigidity of a bridge body is high, the stress of the bridge towers is more reasonable, the fish bone walls have the function of the bridge towers, the section is larger, and the bending performance is better.

The invention discloses a suspension bridge anchorage and a construction method of the suspension bridge anchorage, and relates to the technical field of suspension bridge anchorage design and construction. The device comprises an obliquely-arranged pilot tunnel, a first anchor chamber and a second anchor chamber. The length of the pilot tunnel is configured such that the thickness of a rock stratum on the side below the terminal end of the pilot tunnel is not less than a preset thickness, the first anchor chamber is arranged below the pilot tunnel and communicates with the terminal end of thepilot tunnel, a steering piece is arranged in the first anchor chamber, and the steering piece is positioned at the rock stratum with the thickness not less than the preset thickness; and the secondanchor chamber is vertically arranged below the first anchor chamber and communicates with the first anchor chamber, the second anchor chamber is filled with an anchor block, and a fixing assembly isembedded in the anchor block. The suspension bridge anchorage and the construction method of the suspension bridge anchorage integrate the structural advantages of a tunnel anchor and a gravity anchorsimultaneously, and are suitable for steep slopes and rock mass broken sections.

The invention belongs to the technical field of road traffic, and provides a sunken type special riding road downwards penetrating a road intersection. The riding road is arranged on each of the two sides of a roadway, the road surface elevation of the riding road is lower than the elevation of an adjacent road surface, moreover, the road surface structure of the riding road adopts a water-permeable material, the riding road penetrates through the intersection in the form of downwards penetrating a channel at the road intersection, and the riding road is provided with outlet and inlet ports inthe front and back of the road intersection. According to the sunken type special riding road downwards penetrating the road intersection, rider traffic is taken as an independent traffic flow to beincorporated into urban road traffic organization design so that the traffic working efficiency and riding safety of riders can be improved, and the interference of the rider traffic on the whole roadtraffic also can be reduced.

The invention discloses an underground excavation subway station with a suspension type station hall layer and an independent rail-mounted area and a construction method thereof. The station is composed of a main body part and an auxiliary part; the main body part comprises the station hall layer, a downlink channel, an air channel and a platform layer; the auxiliary part comprises an external equipment room; the platform layer is composed of a rail-mounted area tunnel and a plurality of exchange channels; the rail-mounted area tunnel is divided into an ascending rail-mounted area tunnel and a descending rail-mounted area tunnel according to the subway driving direction; the ascending rail-mounted area tunnel and the descending rail-mounted area tunnel are arranged in parallel at intervals in the longitudinal direction of subway driving; the plurality of exchange channels are transversely arranged at intervals; rock pillars are arranged between the exchange channels; and the station hall layer is arranged on the two sides of the upper part of the platform layer in a suspended mode and is independently divided into two halls arranged in a suspended mode in the longitudinal direction. Therefore, traditional defects are overcome, the overall mechanical property of the structure is good, underground pipelines near the station or surrounding important buildings can be flexibly avoided, different areas of the station can be adjusted according to local conditions, the arrangement is flexible and simplicity and efficiency are achieved.

The invention provides a bridge deck capable of being used for a steel-UHPC (Ultra High Performance Concrete) composite beam bridge, a steel channel beam, a beam bridge and a construction method thereof the bridge deck, and aims to solve technical problems that the steel-UHPC composite beam bridge is overweight in bridge structure, not high in span, poor in crack resistance of a concrete bridge deck and the like. The bridge deck is a one-way rib UHPC bridge deck and comprises a thin bridge deck body and a plurality of UHPC transverse ribs integrally formed at the bottom of the bridge deck body, and the one-way rib UHPC bridge deck is not provided with longitudinal ribs; the steel channel beam is a U-shaped channel beam and comprises a bottom plate, webs connected to the two sides of the bottom plate and flange plates connected to the top faces of the webs, and longitudinal bridge direction stiffening ribs are arranged on the bottom plate and the webs; the beam bridge comprises a plurality of full-hole simply-supported beams which are mutually connected in the longitudinal direction of a bridge, and each full-hole simply-supported beam comprises a one-way rib UHPC bridge deck slab, a steel tank beam and a shear key. The beam bridge adopts a mode that in-plant construction is firstly performed to form a full-hole simply supported beam, and then on-site hoisting is performed. The bridge deck is advantaged in that the self weight of the bridge structure is reduced, stress is reasonable, pier top crack resistance is high, joints are few, construction is easy and convenient, and durability is excellent.

The invention provides a reinforcing method for additionally arranging a new arch ring under the main arch ring of an old stone arch bridge. The arch ring is newly arranged under the bridge, the bearing capacity of the bridge is improved, and the use safety of the structure is ensured. The construction process is simple, construction is convenient, and the reinforcing effect is good. The influenceon clearance under the bridge is reduced; a riverway under the bridge is trimmed; the riverbed is paved, the arch ring is newly arranged below the old stone arch bridge; compared with demolition andreconstruction, the reinforcing method has the advantages that the engineering scale is effectively reduced, the construction speed is high, the construction work amount and difficulty are reduced andthe cost is saved, constructors are reduced, the influence on the old structure is reduced, the special appearance of the stone arch bridge is retained; little impact is generated on the bridge traffic; trepanning device can meet trepanning work of old arch rings or foundation side walls with different heights and radians, the stability of the whole trepanning device during trepanning is improvedthrough cooperation and adsorption of negative pressure suction cups, trepanning work is completed twice at the same time, and meanwhile adjustment of the trepanning distance is facilitated.

The invention provides a permanent and temporary combined mountainous area deck type arch bridge structure and a construction method thereof. The permanent and temporary combined mountainous area deck type arch bridge structure comprises an arch support and a bridge abutment which serve as a permanent buckling tower foundation, and a permanent buckling tower lower tower column is located on the arch support and connected with the arch support into a whole; a permanent buckling tower cross beam is mounted at the upper end of the permanent buckling tower lower tower column, and permanent buckling tower upper tower columns are mounted on the two sides of the permanent buckling tower cross beam; a main arch ring is installed between the two arch seats, and an on-arch stand column is erected at the upper end of the main arch ring; and a bridge deck system is erected at the upper ends of the bridge abutment, the permanent buckling tower cross beam and the on-arch stand column. The arch rib is rigidly connected with the permanent buckling tower through the skewback, the skewback serves as a common foundation of the permanent buckling tower and the arch bridge, and the construction measure cost of the arch bridge can be greatly reduced. The overarch high stand columns and approach bridge lower structures within the coverage range of the single-tower cable-stayed bridge are saved, the engineering scale is reduced, and meanwhile damage to mountains on the two sides is reduced.