460results about How to "Good anti-seepage" patented technology

The invention relates to a high-performance sand-soil consolidation material, as well as a preparation method and a using method thereof. The high-performance sand-soil consolidation material belongs to a mortar composition and is characterized by comprising the following raw materials in parts by weight: 5-40 parts of cement clinker, 3-6 parts of gypsum, 4-10 parts of alkali additive, 0.5-6 parts of compound activating agent, 1-4 parts of early strength agent, 2-10 parts of mineral activating agent, 3-8 parts of expansion agent and 22-77 parts of micro-powder formed by fine grinding of blast furnace water-quenched slag. The invention provides the high-performance sand-soil consolidation material which has the advantages of simple operation, convenient construction, good water resistance, fast consolidation, high early strength, stable improvement of post-strength, resistance to erosion of underground inorganic salt water, excellent anti-seepage performance and low production cost, as well as the preparation method and the using method thereof. The high-performance sand-soil consolidation material is suitable for consolidating mine tailings, natural weathered sand, fly ash, gravel, stone chips, stone powder, soil, sludge, construction waste, coal gangue and phosphorus slag into a solid material, and can be used for laying a subgrade, constructing a wall body and constructing a site foundation.

The invention discloses a high-permeability liquid rubber spray coating, and relates to the technical field of spray coatings. The high-permeability liquid rubber spray coating comprises a component A and a component B, wherein the component A is anionic liquid rubber asphalt emulsion; the component B is a coagulant solution; the component A has the solid content of liquid rubber asphalt emulsion of 50-75 weight percent, and comprises the following components in percentage by mass: 1 to 35 percent of rubber emulsion, 10 to 50 percent of asphalt emulsion, 0.01 to 2 percent of anionic dispersing agent, 0.01 to 2 percent of anionic surfactant, 0.1 to 10 percent of fatty alcohol-polyoxyethylene ether, 0.1 to 10 percent of alkali resistant wetting agent OEP-70 and 0.1 to 10 percent of alkali resistant wetting agent AEP; and the component B is an aqueous solution at the concentration of 3-18 percent, which is prepared by mixing calcium chloride and composite aluminum-iron polymer in percentage by mass. The wetting agents are added into the spray coating, and the coating has high permeability and wider application range.

The invention discloses a tunnel connection channel construction method of a shield interval, which comprises the following steps: 1. an enclosed plain concrete continuous wall which is used as a water sealing curtain is arranged at the periphery of the connection channel ; 2. a mixing pile or grouting is adopted inside of the connection channel area to reinforce soil body; 3. excavating vertical well construction is carried out within the range of a reinforce area; 4. a subsurface excavation method is adopted to carry out excavation and lining construction for the connecting channel from both sides of the vertical well. 5. after the construction of the connecting channel interval is completed and a shield machine entirely passes through a reinforce body, a tube sheet positioned at the connecting channel portal is cut off, the portal waterstop and the portal structure of the connecting channel are constructed; the lining structure of the connecting channel positioned at the vertical well is also constructed and the vertical well is refilled, finally the connecting channel is completed; the stratum reinforce construction method of the connecting channel is high in efficiency and safe, can be promoted and applied to the construction of reinforcing stratum for changing the tool bits of the shield machine, thereby providing reliable guarantee for changing the tool bits of the shield machine.

The invention discloses a concrete expanding agent with triple expansion sources and a preparation method of the concrete expanding agent. The high-performance concrete expanding agent provided by the invention contains calcium oxide, calcium sulfate, calcium sulphoaluminate, magnesium oxide and surfactant. Expansion rate change of the expanding agent and shrinking percentage change of the cement have an adaptive trend, and therefore, after using the expanding agent, the concrete is stable in strength performance, and the performances of the cement or the concrete can be stable for a long time.

A channel juncture impervious material using fly ash as principal raw material synthesized from fly ash with polyether form polyurethane pre-polymer, hardening agent, catalyst, anti-oxidizing agent, and ultraviolet absorbent. The jointing material has superior performance than the jointing material used in the present channel engineering.

A building thermal insulation dry powder mortar belongs to a building thermal insulation material. The weight ratio of a dry powder to water is 1: 1.5. The dry powder is prepared by mixing 450 parts by mass of ordinary portland cement, 70 parts by mass of a calcined gypsum powder, 37.5 parts by mass of a redispersible emulsion powder, 15 parts by mass of fine xylem fibers, 13 parts by mass of polypropylene staple fibers, 10 parts by mass of slaked lime, 10 parts by mass of sierozem, 10 parts by mass of heavy calcium carbonate, 3 parts by mass of hydroxypropyl methyl cellulose, 364 parts by mass of a calcined expanded perlite and 17.5 parts by mass of a premixed auxiliary agent. The thermal insulation building dry powder mortar has the advantages of strong thermal insulation, strong bond with walls, high compressive strength, strong drawing force, excellent weather resistance, and environmental protection, and also has the advantages of fire resistance, cracking resistance, leakage resistance, moisture resistance, sliding resistance, earthquake resistance and the like.

The invention provides a detection method of a stope bottom rock stratum of an open coal mine. The method includes the following steps: conducting geophysical prospecting on the stope bottom rock stratum to obtain distribution and thickness of a water-resisting stratum and a water-bearing stratum and preliminary data of fault distribution and fault throw, conducting drilling prospecting on the water-resisting stratum, the water-bearing stratum and a fault according to the preliminary data of the geophysical prospecting, conducting preliminary site selection on a reservoir according to accurate data of distribution and thickness of the water-resisting stratum and the water-bearing stratum and preliminary data of fault distribution and fault throw which are obtained by the drilling prospecting process, sampling the rock stratum of the reservoir preliminarily selected to obtain permeability coefficient and permeable rate of rock stratum samples and determining the site of the reservoir according to the permeability coefficient and the permeable rate. The method preliminarily selects the site of the reservoir by the geophysical prospecting and the drilling prospecting, analyzes the rock stratum samples to obtain the permeability coefficient and the permeable rate of the rock stratum and finally selects the optimum reservoir with optimum impermeable performance according to the permeability coefficient and the permeable rate. Therefore, the underground reservoir can be reasonably utilized, and underground water resources can be protected.

The present invention relates to a cement concrete configuration technic, specifically, a concrete mixing proportion for deposition tube tunneltron segment which includes a pipeline section body concrete mixing proportion and pipeline section late poured band concrete mixing proportion. The pipeline section body concrete has weight percentage as follows: water 7.3%, cement 10.5%, fly ash 2.1-3.5%, mineral powder 3.5-4.9%, sand 29.9%, stone 43.52%, high efficiency water reducing agent 0.44%, fabric 0.03% and plumping agent 1.46-1.83%. The pipeline section mass concrete manufactured by the mixing proportion can satisfy design volume weight, strength gradation of the pipeline section concrete which has better anti-seepage and anti-crack property, and has favour economical efficiency.

The invention discloses a rainwater seepage prevention device of a plastic steel window. The rainwater seepage prevention device comprises a wall. An outer window frame for dividing space of the wall into an indoor portion and an outdoor portion is arranged on the wall. The indoor portion of the wall is covered with an internal-wall mortar painting layer. The outdoor portion of the wall is sequentially covered with an external-wall heat insulating layer and an external-wall mortar printing layer. The outer window frame is clamped in a gap formed between the internal-wall mortar printing layer and the external-wall mortar printing layer. A gap is reserved between one side of the outer window frame and the external-wall mortar printing layer and is filled with external-wall waterproof sealant. The outer window frame is fixedly connected with the wall through a fixing piece. A gap between the outer window frame and the uncovered wall is filled with a foaming waterproofing agent after the outer window frame is connected with the fixing piece in a clamping mode. The rainwater seepage prevention device can prevent rainwater from infiltrating into a window body and a main structure, sealing effect and seepage prevention effect are good, and service life of the plastic steel window is greatly prolonged.

The invention discloses a high-strength crack-resistant concrete material. The high-strength crack-resistant concrete material is prepared from, by weight, 4 to 6% of water, 11 to 14% of P.II52.5 cement, 24 to 34% of river sand, 30 to 40% of coarse aggregate cobblestone, 2 to 5% of fly ash, 1 to 3% of ore powder, 2 to 4% of silicon powder, 1 to 4% of water-absorbing ceramsite and 0 to 1% of a compound additive through stirring, mixing, hydration and coagulation. With the high-strength crack-resistant concrete material, high strength, high elastic modulus and good construction performance of concrete can be maintained, the problem of early-stage cracking of concrete is overcome, and production difficulty and construction process difficulty are not increased.

The invention discloses an irrigation and drainage integrated device suitable for a high underground water level. The irrigation and drainage integrated device comprises a set of underground irrigation pipelines, an underground water conveying pipeline, a water storage pool body, a water inlet pipe, a water outlet pipe, a water pump and two automatic control valves of the water pump, wherein one end of each underground irrigation pipeline is connected with the underground water conveying pipeline; a water permeable film is mounted at the other end of each underground irrigation pipeline; the underground water conveying pipeline is connected with the water inlet pipe; the water inlet pipe is connected with the water storage pool body; the first automatic control valve is mounted on the water inlet pipe; one end of the water outlet pipe is connected with one side of the water inlet pipe; the other end of the water outlet pipe is connected with the water storage pool body; and the water pump and the second automatic control valve are respectively mounted on the water outlet pipe. According to the irrigation and drainage integrated device, redundant underground water can be drained under higher underground water level of farmland and is stored in the water storage pool body, and infiltrating irrigation is carried out through the underground irrigation pipelines under lower underground water level, so that the irrigation and drainage functions are achieved, the water resources are saved and high and stable yield of crops can be facilitated.

The invention relates to a method for improving severe saline-alkali soil by using an open trench and hidden filler layer, which comprises the following steps of: (1) digging a pit in the saline-alkali soil, and filling filler at the bottom of the dug pit to form a salt and alkali removing filler layer; (2) digging a salt and alkali removing trench which is positioned above and communicated with an underground salt and alkali removing filler layer, and performing stone pitching on the salt and alkali removing trench; and (3) removing salt and alkali from the whole saline-alkali soil by natural rainfall or irrigation. By performing stone pitching on the salt and alkali removing trench and arranging the salt and alkali removing filler layer, the salt and alkali removing trench has a good anti-seepage effect and the characteristic of preventing cultivated soil from being lost by slope protection, and can be effectively used for a long time, and the salt and alkali removing filler layer breaks the formation of capillaries in the soil effectively and prevents shallow groundwater from being evaporated; and by a method for controlling the upward movement of salt formed by evaporation by cutting an evaporation channel through the filler layer, the salt is difficult to move upwards and aggregate, the problem that surface water is evaporated to form the salt is radically solved, and the aim of effectively improving soil property for a long time is fulfilled.

The invention relates to a method for building earth-rock dam vibrated bitumen concrete seepage cutoff wall, belonging to the construction of earth-rock dam seepage cutoff wall. It comprises following steps: a, laying mold plate which comprises slide mold plate or assemble movable mold plate; b, laying high temperature resistant non-woven cloth; c, laying transition material and rolling the transition material; d, laying bitumen concrete: filling vibrated bitumen mixed material into the mold plate and using blade vibrator to vibrate it while the mixed material comprises: skeletal material, powdered ore and bitumen; e, moving the mold plate or removing the mold plate; f, keep warm and maintaining. The invention has the advantages that: it is not limited by temperature while it can be processed above -25Deg.C; and the vibrated bitumen concrete is uniform with better seepage cutoff ability, unlimited by temperature and simple device.

The invention relates to a flapper pile tip of a concrete CFC material sinking pipe cast-in-place pile, which can be used for placing a reinforced steel cage and connected at an external angle of the bottom of a sinking pipe through hinges. The flapper pile tip of the concrete CFC material sinking pipe cast-in-place pile is characterized by being made from a conical steel plate with radian; two sides and the tip end of the steel plate are cut into inclined planes, and the upper end of the steel plate is provided with a hinge connecting mechanism; and the steel plate forms a cone with a hollow cavity in the middle after closing so as to reduce sinking resistance of the pile tip. The flapper pile tip of the concrete CFC material sinking pipe cast-in-place pile has good seepage-proofing performance, ingenious structure, simple operation and convenient use, and can be reused; and the invention saves cost, reduces the manufacturing cost, shortens time limit for a project and improves the working efficiency.

The invention discloses a preparation method and an application of a viscous anti-seepage material. The preparation method adopts the following raw materials in part by weight: 0-5 parts of coal ash, 30-60 parts of kaolinite, 40-80 parts of bentonite, 1-3 parts of polyacrylic acid, 0-3 parts of polyacrylamide, 0-3 parts of polyacryl acid ester and 0-2 parts of hexadecyl trimethyl ammonium chloride, the raw materials are fully mixed to obtain the anti-seepage material with the 1.15-1.20 g/cm<3>. The viscous anti-seepage material is mainly used for a 'sandwich'-type anti-seepage system. The invention has the advantages that the anti-seepage performance and the self-recovery function are excellent, the structure is simple, the price is low, the construction is convenient and secondary pollution can not be caused to the environment.

The invention belongs to the field of mines, and relates to a riverbed seepage-proof governing structure. According to the riverbed seepage-proof governing structure, a quaternary seepage-proof structure is arranged on a disturbed riverbed, and the quaternary seepage-proof structure is divided into four layers from bottom to top, namely a riverbed reinforcing layer, a seepage-proof cushion layer, a seepage-proof layer and a seepage-proof protective layer are sequentially laid. According to the design, engineering geology, environment characteristics and technical features of a composite geo-membrane are fully considered, and therefore the effect of the disturbed riverbed seepage-proof governing is enabled to good, and governing cost is lower.

The invention discloses an anti-seepage construction method for karst cave development stratum under overburden. The anti-seepage construction method comprises the following steps: S1, overburden drilling with a casing; S2, full-section drilling of basement and karst cave stratum; S3, drill-hole cleaning of basement and karst cave stratum; S4, grouting of basement and karst cave stratum; S5, grouting of overburden; and S6, hole sealing. The anti-seepage construction method has the advantages of simplicity in construction, favorable quality, controllable cost and high efficiency.

The invention discloses a composite panel earth rockfill dam and an anti-seepage body construction method. The composite panel earth rockfill dam comprises a capsule blanket, a panel seat, a composite panel, a wave-resistant wall, a transitional layer, an earth dam body and the like, wherein the cross section of the composite panel earth dam is ladder-shaped; the wave-resistant wall is arranged at the dam top; the capsule blanket is tiled on the upstream river bed; the panel seat from the river bed to dam abutments on two sides is arranged at the upstream toe; a drape is arranged below the panel seat; the composite panel is arranged on the whole upstream dam slope surface; the bottom surface of the composite panel is connected with the panel seat; the top surface of the composite panel is connected with the wave-resistant wall; the inclined transitional layer with thin upper part and thick lower part is arranged between the composite panel and the earth dam body; a stone revetment and a packway are arranged on the downstream dam slope surface; and a slope-clinging drainage body is arranged at the downstream toe; and the capsule blanket, the resin film seal, the panel seat, the drape, the composite panel, the dam abutment on both sides and the wave-resistant wall form the closed anti-seepage body. The composite panel earth rockfill dam is suitable for being built on rock, gravel, earth and other different dam foundations, has the characteristics of high water storage level, good anti-seepage effect, simple structure, simplicity and convenience in construction and the like, and is a novel water-retaining building in the reservoir pivot.

The invention relates to a grouting material for an impervious curtain of a refuse landfill and a preparation method of the grouting material. The grouting material comprises the following components in percentage by mass: 40 to 50 percent of MSWI (Municipal Solid Waste Incineration) fly ash, 0.5 to 1 percent of organic sulfur, 3 to 6 percent of cement, 45 to 55 percent of water, and 1.5 to 2 percent of calcium hydroxide. The method for preparing the grouting material comprises the following steps of: (1) weighing raw materials; (2) mixing the MSWI fly ash, the water and the organic sulfur, and uniformly stirring for 5 to 10 minutes; and (3) interfusing the cement and the calcium hydroxide, and uniformly stirring for 3 to 5 minutes. According to the grouting material, the problems of material selection difficulty, high cost, poor fluidity, low stability and poor impermeability of a conventional grouting material can be solved. The preparation method has the advantages of short processroute, simple operation, time saving and the like.

The invention relates to a standardized design construction method of a flexible compound fabricated recoverable rectangular working well supporting structure. The method comprises the following stepsthat (1) construction of minisize supporting piles is carried out; (2) construction of pile top crown beams; (3) a rectangular working well is excavated, panels and waist beams are installed, and high polymers are poured to side walls for sealing; (4) excavation is carried out layer by layer sequentially in the vertical direction, and the step (3) is carried out repeatedly till the design depth is met, that is, construction of the rectangular working well supporting structure is completed accordingly; and (5) after the supporting structure fulfills the usage function, the supporting structurerecovery work can be carried out as the backfilling work is started. Through standardized design construction of the established supporting structure system, one supporting structure can meet the construction requirement of most rectangular working wells in a region, the advantages of safety, reliability, quick and convenient construction, advanced technologies, high recoverability, superior economic indicators and the like are achieved, and the application and development prospects are considerable.

The invention provides an ecological ditch with a remediation function. The ecological ditch comprises impermeable layers sequentially laid from bottom to top to prevent water flow permeation, a planting layer for aquatic plant to grow and an aquatic plant blanket layer with aquatic plant planted thereon, wherein the planting layer is provided with a trapezoidal surface; and the aquatic plant blanket layer is fixedly laid on the trapezoidal surface of the planting layer. In the invention, an impermeable film and the planting layer are directly laid in the ditch, and high diversity of species is maintained; the aquatic plant blanket layer is laid at the upper part of the planting layer, and the water body is deeply remediated; and the construction way of the ditch replaces traditional reinforced concrete structure. A laying method of the ditch comprises the following steps: (i) ditch flattening; (ii) laying of the impermeable layers; (iii) laying of the ecological planting layer; (iv) laying of the aquatic plant blanket layer; (v) planting of the plant; and (vi) mounting of a water retaining device. In the invention, the laid aquatic plant blanket has good tensile strength; and due to the laid nonwoven and plastic net, the blanket forming effect of the aquatic plant blanket is good.

The invention relates to the field of materials for building construction, in particular to a bentonite-based grouting material and a preparation method thereof. The bentonite-based grouting materialis prepared from the following components in parts by mass: 20-50 parts of bentonite, 50-80 parts of cement, 120-160 parts of water and 40-200 parts of water glass. The bentonite with a high proportion is introduced to existing cement-water glass slurry to serve as a stabilizer, and the grouting material with low cost, good stability and high impermeability is prepared. Through experimental studyon the bentonite-based grouting material, an optimal proportion is determined, and the feasibility of the bentonite-based grouting technology is analyzed theoretically. Compared with conventional cement-water glass grouting materials, the bentonite-based grouting material has the characteristics of high stability, low cost, environment protection, convenience in material acquisition and high impermeability, and has a good water plugging effect, thereby having a wide development and application prospect in water-rich sandy gravel stratums.

The invention discloses anti-freezing mortar special for aerated bricks, made from, by weight, 30-40 parts of mineral residue, 30-35 parts of cement, 25-30 parts of river sand, 0.5-1 part of a water reducing agent, 0.5-1 part of an air entraining agent, 1-2 parts of an anti-freezing agent, 4-6 parts of vitrified micro bubbles, 3-5 parts of Kapok fiber, 2-4 parts of rare-earth oxide, and 5-8 parts of modified attapulgite. Unique components are selected, their contents are reasonably matched, and the mortar and its products are good in strength, cracking resistance, water permeation resistance and temperature resistance and excellent in anti-freezing performance, are applicable to cold areas and areas having great temperature differences and have excellent performance, and potential safety hazards are decreased.