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1093results about "Dams" patented technology

Method for river course slope protection by using composite stream constructed wetlands

The invention relates to a method for river course slope protection by using composite stream constructed wetlands, comprising the following steps that: (a) grass planting ditches with V-shaped cross section are dug on a slope surface, and plants are planted in the grass planting ditches; (b) a composite stream constructed wetland in which fillers are provided is set at the water outlet of the grass planting ditch, and one or more plants selected from reeds, cattail, sedge, Sparganium, Juncus, canna, metasequoia, calamus, Scirpus tabernaemontani, arrowheads, Aponogetonaceae grass, Alternanthera sessilis, cress or sedge are planted on the fillers; (c) a water outlet pipe is arranged at one side of the composite stream constructed wetland adjacent to the river course so that water flowing from the composite stream constructed wetland is drained into the water course. The method for river course slope protection by using composite stream constructed wetlands has the advantages of good stability of slope protection to water courses, little damage to ecological environment keeping at both sides of rivers, capability of beautifying riparian landscape and adding biological diversity, low cost and favorable pollution interception and purification effects.
Owner:BEIJING FORESTRY UNIVERSITY

Small-flow river water cleaning and pollution stopping system

A small-flow river water cleaning and pollution stopping system comprises shore-based ecological beds, relaxation hydrophilic tribunes, ecological filtering beds and diversion rubber dams. The shore-based ecological beds are arranged on two shores of the river and in a slope structure, the shore-based ecological beds and water are separated through the relaxation hydrophilic tribunes, filtering layers are arranged on the side of the shore-based ecological beds, which are in contact with the relaxation hydrophilic tribunes, and a plurality of drainage openings are formed in the bottom of the relaxation hydrophilic tribunes. The ecological filtering beds are arranged in the water of the river and close to the sides of the shores, the middle of the two ecological filtering beds is a central region of the river, and the ecological filtering beds and the river central region are separated by permeable retaining walls and the diversion rubber dams on the permeable retaining walls. The ecological filtering beds are divided into upper and lower layers, filtering material layers are arranged on the lower layers, and soil layers are arranged on the upper layers. The ecological filtering beds are in rectangular or cambered structures and opened towards the river upstream direction to collect water from the upstream.
Owner:邳州市博睿投资管理有限公司

Groove bottom-reinforced fully lined debris flow drainage groove and construction method thereof

The invention discloses a groove bottom-reinforced fully lined debris flow drainage groove and a construction method thereof. The groove bottom-reinforced fully lined debris flow drainage groove comprises a fully lined drainage groove bottom plate and drainage groove side walls on the two sides of the bottom plate; a plurality of submerged sills which pass through along the drainage groove transversely, are connected with the drainage groove bottom plate, are distributed at intervals, and have a certain effective burial depth are arranged in the foundation and below the drainage groove; the submerged sills at the inlet and the outlet of the drainage groove are deepened submerged sills, and the submerged sills at other positions of the drainage groove are common submerged sills; and the effective burial depth of each of the deepened submerged sills is larger than that of each of the common submerged sills, and the deepened submerged sills extend to the bottom of the foundation of each of the drainage groove side walls on the two sides so as to form a triangular wedge-shaped body respectively. Compared with the prior art, the groove has the advantages of making full use of the bed-reinforcing effect of the submerged sills, reinforcing the bottom of the drainage groove in sections, avoiding danger to the entire drainage groove due to the damage of local drainage groove bottom, guaranteeing the operation safety of the drainage groove adequately, increasing small working amount and saving a large amount of engineering maintenance cost, along with low construction cost.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Debris flow gabion prevention and control structural body and design method thereof

The invention discloses a debris flow gabion prevention and control structural body and a design method of the debris flow gabion prevention and control structural body. The flexible debris flow blocking structural body aims to overcome the defects that an existing permeable dam is limited in water permeability and is cracked and destroyed easily by over large instantaneous impact force. The debris flow gabion prevention and control structural body comprises at least one gabion dam prevention and control structural single body. Each single body comprises a lower steel pipe pile group and an upper gabion dam, wherein the steel pipe pile group is formed by arranging a plurality of steel pipe piles in the transverse direction of a debris flow channel, the lower pile bodies of the steel pipe piles are embedded into a debris flow gulley bed, and the upper portions of the steep pipe piles are exposed out of the gulley surface and are connected with the gabion dam in a penetrating mode. The multiple gabion dam prevention and control structural single bodies are arranged adjacently in the longitudinal direction of the debris flow channel. Through the optimization design, the gabion dam is of a multi-layer structure, each layer of the gabion dam is composed of a plurality of gabion nets, and the gabion nets of each layer are arranged in a staggered mode. The invention further provides the design method of the debris flow gabion prevention and control structural body. The debris flow gabion prevention and control structural body can fully utilize the water permeability of the gabion combined structure and deformation feedback of the gabion combined structure on the impact to achieve a good prevention and control effect.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Slope excavation digital construction and quality control method

ActiveCN110409369AReal-time access to excavation form data informationExcellent construction organization planDamsDykesThree dimensional simulationSystems analysis
The invention provides a slope excavation digital construction and quality control method. The method comprises three steps that first, before construction of slope excavation, data acquisition is carried out on an original mountain face, the information including the most excavation depth, the area of a construction area, the amount of excavation is acquired through system analysis, and is inputinto a computer to built a mountain three-dimensional simulation model, and the mountain three-dimensional simulation model is used for providing suggestions for a reasonable construction scheme; andsecond, during construction, excavation form data information is acquired in real time, and is input into the computer, the built mountain three-dimensional simulation model is modified in real time,and constructors can judge whether the construction quality meets the requirements or not according to the simulation model and timely provide and modify a construction method. The slope excavation digital construction and quality control method is a dam building quality control and construction scheme, according to which, during excavation construction of a dam slope, dynamic control is unceasingly carried out on the excavation progress, the excavation image and face, the excavation quality and the like, and it can be guaranteed that a project is built smoothly while the construction speed isincreased.
Owner:CHINA RENEWABLE ENERGY ENG INST

Technology of rapidly constructing cofferdam by large mud-filled bags combined with sand-filled bags on soft soil foundation

InactiveCN103993577ASave resourcesConsolidation fastDamsDykesSoil scienceCofferdam
The invention provides a technology of rapidly constructing a cofferdam by large mud-filled bags combined with sand-filled bags on a soft soil foundation, construction can be conducted directly on the soft soil foundation, and a road, the cofferdam and a block dam can be rapidly formed. The technology mainly includes the constructing steps that a soil engineering soft body row is laid on an original mud surface; a first layer of large sand-filled bags and a second layer of mud-filled bags are constructed sequentially, and the mud-filled bags and the sand-filled bags can be collected from the local area; sand blowing is conducted within two meters of the outer edges of the mud-filled bags, and a third layer of sand-filled bags is constructed; filled mud bag blowing and filled sand bag blowing are sequentially constructed in a cycled mode, and the sand-filled bags are located on the uppermost layer. The gradient ranging from 1: 1.5 to 1: 2 is appropriate. The technology has the advantages that consumption of natural sand materials is reduced, the filled mud can be collected from the surrounding soft soil, the surrounding soft soil is reduced, and the technology is environmentally friendly, rapid, economical and advanced.
Owner:TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +2

Environment-friendly blasting compaction method for treating soft foundation

InactiveCN102061696ACut off the transmission routeSave energyDamsDykesStructural engineeringBlasting vibration
The invention relates to an environment-friendly blasting compaction method for treating a soft foundation, which is characterized in that: the environment-friendly blasting compaction method for constructing a dike starts with blasting shock wave energy and a transmission medium, reduces the blasting shock wave energy, changes the blasting influence transfer pathway and blocks the transmission medium of the shock wave; microsecond blasting is preferred; a construction method of combining the microsecond blasting with an exposed beach blasting is utilized when the blasting vibration influence area is in the range of low-tide dike head silt packets; and a construction method of combining the microsecond blasting with an air bubble curtain is utilized when the blasting vibration influence area is in the range of seawater in the lowest tide. The environment-friendly blasting compaction method for treating the soft foundation has the good effects of reducing the energy generated by the blasting compaction, blocking the transfer pathway of the blasting shock wave, reducing the powerful shock wave, the intense vibration and the noise generated by the blasting to the minimum and realizing blasting compaction environmental-friendliness construction.
Owner:宁波高新区围海工程技术开发有限公司 +1

Viscous mud-stone flow triangle bottom guide groove hydraulic optimum section design method and its uses

The invention discloses a design method of a viscous mud-flow triangle base drainage canal optimum hydraulic section and the application thereof. The invention aims at the disadvantages in the prior art that the calculation method of the drainage canal optimum hydraulic section in the triangle base drainage canal design is complicated and no unique definite value can be obtained. The invention provides the design method of the viscous mud-flow triangle base drainage canal optimum hydraulic section. The method includes the following steps: calculating the size parameter F and the characteristic parameter S of the drainage canal optimum hydraulic section; then calculating the drainage canal hydraulic radius R; and finally the width W and the depth H of the optimum hydraulic section. The method is applicable to the control of the viscous mud-flow and coordinate use with other backbone type blocking projects. Compared with the prior art, the method can reasonably determine the shape and the size of the triangle base drainage canal optimum hydraulic section with unique definite value of the calculation result, effective, rapid and convenient calculation, thereby being applicable to the practical engineering.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Method for reducing total phosphorus in polluted river

InactiveCN102849904AAdjust the amount of waterPlay the role of purifying waterDamsMultistage water/sewage treatmentParticulatesMass ratio
The invention provides a method for reducing total phosphorus in polluted river, comprising the following step of building a building block type infiltration dam on a control cross section in a riverway, wherein the building block type infiltration dam comprises a fixed type dam body and filler building blocks, the filler building blocks are dryly built on the fixed type dam body in the manner of break joints, each filler building block consists of a building block type envelope structure and a filler, the filler is selected from activated zeolite with the particle size of 24-32mmm, haycite with the particle size of 16-24mm, anthracite with the particle size of 12-16cm and iron-coated sand with the particle size of 8-16mm, each filler building block on the fixed type dam body is divided into three stages along the water flow direction, the first-stage filler building block is filled with the activated zeolite, the second-stage filler building block is filled with a mixture of the haycite and the anthracite in the mass ratio of 1:(1.85-2.15), and the third-stage filler building block is filled with the iron-coated sand. According to the method, the total phosphorus in the polluted river can be removed by the infiltration dam in situ, the method is simple and convenient, the phosphorus content can be effectively reduced, and the suspended particulate matter content and the ammonia nitrogen content can be simultaneously reduced.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY

Pile bearing caisson seawall and construction method thereof

The invention relates to a seawall and a construction method thereof, and aims to provide a seawall with better stability, taking a large-diameter cast-in-site concrete cylindrical pile as a basis, and a construction method of the seawall, wherein the upper part of the seawall is connected with a caisson platform. The pile bearing caisson seawall comprises the caisson platform positioned on a submarine soft soil foundation in coastal engineering, wherein, the bottom of the caisson platform is equipped with at least two rows of erected bearing piles which are used for bearing the platform and are embedded into sea bottom; and the sides of the caisson platform near sea and land are equipped with the erected bearing piles which are embedded into the sea bottom as well as transverse suppression layers positioned on the top ends of the bearing piles. The seawall and the construction method have the beneficial effects that the bearing capacity and stability of the seawall are improved; and in addition, the caisson platform can be utilized as a construction platform so as to construct according to an overland construction method after construction machinery is placed on the platform, which reduces offshore ship operation and lowers construction cost, thus being capable of being widely applied to coastal dam construction engineering.
Owner:浙江海桐高新工程技术有限公司
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