35results about How to "Strong ability to adapt to deformation" patented technology

The invention relates to the field of building foundations, in particular to a method for dredging a soft foundation by dredger fill and reinforcement. The method includes: a, zoning for dredger fill; b, forming a primary drainage system; and c, performing layered and zonal filling and reinforcement. The method is characterized in that in zoning for dredger fill, each filling unit (11) is 20000m<2>-50000m<2> in area; in formation of the primary drainage system, digging crisscross blind ditches (31) on the surface of the filling unit (11), and laying corrugated filter pipes (32) and drain boards (33) on the surface for the filling unit (11); and in layered zonal filling and reinforcement, filling the filling area (1) level by level, and reinforcing with all levels of drainage networks. The method is convenient in construction, short in construction period, effective in foundation treatment and low in construction cost.

The invention discloses a concrete-enrockment mixed dam and a construction method thereof. The mixed dam has a novel dam body structure formed by combining a concrete dam body and a rockfill dam body. The dam body thereof comprises the concrete dam body, the rockfill dam body, pectinate connection section, a subcrust and a transition layer, wherein the pectinate connection section is arranged in the rockfill dam body, is subjected to one-piece pouring with the concrete dam body and is embedded into the rockfill dam body; and the subcrust and the transition layer are arranged between the concrete dam body and the rockfill dam body. The concrete-rockfill mixed dam absorbs the advantages of rock-fill dams and concrete dams, overcomes the disadvantages of the two dam types, and has the advantages of simple structure and convenient construction and manufacturing cost reduction, which is an economical and practical dam type.

The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to room-temperature bituminous concrete and a preparation method thereof. The room-temperature bituminous concrete is prepared from the following raw materials: in percentage by weight, 8%-13% of aggregate with the particle diameter larger than 9.5mm and smaller than or equal to 16mm, 16%-21% of aggregate with the particle diameter larger than 4.75mm and smaller than or equal to 9.5mm, 25%-26% of aggregate with the particle diameter larger than 2.36mm and smaller than or equal to 4.75mm, 38%-40% of aggregate with the particle diameter larger than 0.075mm and smaller than or equal to 2.36mm and 6.0% of aggregate with the particle diameter smaller than or equal to 0.075mm; the ratio of the bitumen to aggregate is 6.5%-7.0% and represents the ratio of the weight of the room-temperature bitumen to the total weight of the aggregate and padding. The room-temperature bituminous concrete provided by the invention solves the problems that conventional room-temperature bituminous concrete cannot be applied to an anti-seepage structure of the water conservancy and hydropower engineering due to high porosity and poor anti-seepage performance.

The invention relates to the technical field of rural domestic sewage treatment, particularly to a rural domestic wastewater treatment system based on small watershed dispersity. According to the present invention, the rural domestic wastewater treatment process using the improved three-grid septic tank-oxidation pond-ecological ditch as the main body is constructed based on local conditions by completely considering the ditches formed by the abundant rainfall and the mountainous hilly terrain in the vast rural areas of southern China, the energy-consuming equipment such as pumps and the likeare not required to be additionally arranged, the additional power-free requirement is achieved, and the rural domestic wastewater treatment system has advantages of less investment, good effect, convenient operation and maintenance, no secondary pollution and the like, and the final effluent can achieve the Class V standard of Environmental Quality Standards For Surface Water (GB3838-2002).

The invention discloses a bridge deck drainage supporting facility. A drainage channel is formed in the outer side of a bridge deck pavement edge curb and provided with an open rectangular section, a footpath cover plate covers the upper portion of the drainage channel, the outside of the drainage channel is wrapped with a stainless steel plate, rainwater holes are formed in the curb, the drainage channel extends into linking roads at two ends of a bridge along the bridge, a spherical rubber expansion joint for water passage is formed in the position of the drainage channel passing an expansion seam, two ends of the rubber expansion joint are fastened on vertical seal head steel plates of the drainage channel through flange plates and bolts, openings are formed in the vertical seal head steel plates of the drainage channel and correspond to the expansion joint, the stainless steel plate externally wrapping the drainage channel is crimped at the openings of the seal head steel plates, the stainless steel plate, the rubber expansion joint and the flange plates are jointly anchored on a steel plate, a plurality of spheres are formed on the vertical surface of the rubber expansion joint, the displacement deformation requirement of beams on two sides of the expansion seam is met, and the cross section of the expansion joint is rectangular. The bridge deck drainage supporting facility can solve the problems that a drainage pipe of a traditional bridge deck drainage scheme is exposed, joints frequently leak and the like.

The invention relates to the field of building foundations, in particular to a treatment method of a recent dredger-fill silt foundation. The treatment method of the recent dredger-fill silt foundation includes three phases, namely surface vacuum dewatering joint-preloading, vacuum joint preloading and composite foundation. The treatment method is characterized by including the steps: in surface vacuum dewatering joint-preloading, treating the foundation by a, zoning; b, spreading a vacuum dewatering joint-preloading cushion; c, spreading a film and d, evacuating; in vacuum joint preloading, treating the foundation by a, spreading drain boards; b, spreading a film; c, performing vacuum joint preloading and d, performing low-energy forced ramming or impact rolling; and in the phase of composite foundation, adopting conventional composite foundation methods. The treatment method is safe in construction, short in construction period, effective in foundation treatment, low in construction cost, especially suitable for projects of land aggradation by reclamation, which are super-high in water content and ultralow in strength and need instant foundation treatment after filling.

The invention relates to a gravity concrete faced rockfill dam and a construction method thereof, and belongs to the technical field of water conservancy projects. The gravity concrete faced rockfill dam comprises a concrete panel, a cushion layer, L-shaped thick plates, a rockfill concrete area and other components. The concrete panel is laid on the upstream face of the upstream side of a dam body, and the cushion layer is arranged on the downstream side of the concrete panel. The downstream side of the cushion layer is the rockfill concrete area, the L-shaped thick plates are arranged at a certain interval along the dam height and can be horizontally arranged, the plate ends face the downstream position and go deep into the rockfill concrete area, the other ends of the L-shaped thick plates are big head ends and face the upstream position, and the concrete panel is supported. The downstream side of the rockfill concrete area is a main rockfill area and a secondary rockfill area, and the function of restraining deformation of the rockfill concrete area is achieved. A drainage gallery is located in the rockfill concrete area, upstream seepage water of the dam body and a dam foundation is discharged, the uplift pressure of the dam foundation is reduced, and stability of the dam body is improved. According to the gravity concrete faced rockfill dam and the construction method thereof, the beneficial effects of a gravity dam and the concrete faced rockfill dam are fully utilized, the deformation of the panel is reduced, the probability of panel damage is reduced, and safety of the high concrete faced rockfill dam is ensured.