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212results about How to "Function use" patented technology

Rectangular pipe jacking construction method for outlet and inlet channel of subway station

The invention provides a rectangular pipe jacking construction method for an outlet and inlet channel of a subway station. The construction method specifically comprises the steps of constructing an initial well and a receiving well, calculating and determining jacking parameters, smearing wax on the outer wall of a pipe before jacking, connecting a head of a pipe jacking machine and three adjacent pipe sections into a whole during jacking, simultaneously injecting pressure injection thixotropic slurry into the back of the pipe sections in the jacking process, and arranging a stopping device to prevent the pipe jacking machine from retreating; erecting a receiving platform to receive the pipe jacking machine, after the jacking construction is finished, plugging pipe section gaps and the gaps between the pipe sections and two end openings, and finally adding cement slurry to replace the thixotropic slurry to consolidate a pipe jacking channel. It is ensured that the underground pipelinedoes not settle, crack, leak or the like, and compared with construction of a traditional open excavation method, the construction method has the advantages of small environmental impact, safe construction, simple operation, single procedure, low manufacturing cost, cost saving and good popularization significance.
Owner:URBAN MASS TRANSIT ENG CO LTD OF CHINA RAILWAY 11TH BUREAU GRP +1

Electromagnetic pilot-operated diaphragm valve

The invention relates to an electromagnetic pilot-operated diaphragm valve. A water through opening is arranged at a water inlet and a water outlet, and a valve cover is arranged on a control opening; and a diaphragm is arranged between the valve cover and the control opening and can close the water through opening. A water pressure balance cavity is formed between the diaphragm and the valve cover, and the valve cover is provided with a pressure releasing slot which is provided with an electromagnetic valve. The bottom of the pressure releasing slot is provided with a first pressure releasing hole communicated with the water pressure balance cavity, and the diaphragm is provided with a jet orifice. A protruding pole is arranged on the inner surface of the valve cover, the middle part of the diaphragm is fixed on the protruding pole, a second pressure releasing hole is arranged in the protruding pole, and a valve plug of the electromagnetic valve can close the second pressure releasing hole. The water intake aperture of the diaphragm ranges from 15 mm to 20 mm, and the ratio of the areas of the water inlet and the water outlet ranges from 1.5 to 2. The invention can greatly reduce the volume of the whole valve, reduce materials, lower the cost, greatly shorten pressure releasing passages, speed up opening and closing, accomplish normal opening and normal closing at the extremely low water pressure of 0.01 MPa and reduce water hammer, etc.
Owner:朱振连

Construction method for maintaining and locally reinforcing reinforced concrete structure

The invention relates to a construction method for maintaining and locally reinforcing a reinforced concrete structure and belongs to the technical field of construction maintenance. The construction method comprises the following steps of: chiseling a cracked concrete surface; additionally arranging a reinforcing steel plate in the size of a reinforcing area of the reinforced concrete structure on the reinforced concrete structure; additionally arranging a plurality of fixing bolts on a reinforced concrete reinforcing surface; confirming the quantity of the fixing bolts according to the size of the reinforcing steel plate; using the fixing bolts to temporarily fix the reinforcing steel plate; and filling grouting slurry in a gap between the reinforcing steel plate and the reinforced concrete structure. The construction method can meet the demands on maintenance and local reinforcement of the reinforced concrete structure. According to the construction method for maintaining, a use function of the reinforced concrete structure construction is achieved by adopting the local reinforcing construction while the original reinforced concrete structure construction is not removed. The construction method has the advantages of simplicity, short construction period, and the like.
Owner:BEIJING SHOUGANG CONSTR GROUP

Multi-layered structure and construction method of high embankment near mountains

The invention relates to a multi-layered structure of a high fill roadbed alongside a mountain, comprising a mountain body, a rockfill embankment, a drainage canal, a block stone, a soil-stone mixture, a mountain platform, a platform and a cross slope, wherein the multi-layered structure comprises a mountain body, a rockfill embankment, a drainage canal, a block stone, a soil-stone mixture, a platform and a cross slope. The hill is excavated into a stepped structure, and the hill is provided with a hill platform; The subgrade of Shanao road section in the lower part of the stepped mountain body is filled with a rock-filled embankment, the thickness of the pavement layer of the rock-filled embankment is not more than 60cm, and the filling stones are blocks of different sizes of 20-30cm, andcrevices are left between the blocks; and the rock-filled embankment is filled with the rock-filled embankment. Non-woven geotextiles are laid on the top surface of the rockfill embankment; The rockfill embankment consists of graded slopes with platforms between each grade, and the slope ratio is consistent. An inverted trapezoidal drainage channel is arranged at the bottom of the slope of the rockfill embankment; Earth-rock mixture fills from the top surface of the rockfill embankment to the bottom of the roadbed in stages. The invention has the beneficial effects that the subgrade stratum is filled with a block stone, and can be used as a surface drainage water permeable layer, thus ensuring the smooth drainage of the subgrade after the subgrade is filled, and reducing the influence ofsurface water on the stability of the subgrade during the operation period.
Owner:杭州市交通规划设计研究院有限公司
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