90 results about "Karst landform" patented technology

The invention relates to a mechanical hole forming technology applied to karst landform. The technology comprises the following steps of: laying off and positioning; digging a mud pit; burying a pile casing; arranging a drill in place and making mud; forming holes by using an impact machine, wherein when a karst cave is greater than or equal to 3m in depth during construction, a steel pile casing dado is arranged; pumping out sediment and supplementing mud; checking the sediment; clearing off the holes by using a home-made hole cleaning device; checking the holes; arranging a steel reinforcement cage; arranging guide pipes; and pouring underwater concrete. By the mechanical hole forming technology, the probability of occurrence of hole collapse, overfilling of concrete and the like can be lowered, karst cave areas can be effectively protected, the effect of saving concrete is achieved and the cost is further reduced; moreover, by the mechanical hole forming technology, a unit in charge of construction can be effectively helped to clear off sediment from the bottoms of holes, hole piles in collapsed holes can be cleared quickly, the specific depth of a hole pipe can be measured by construction workers.

The invention discloses a method for planting dendrobium through natural stone seams on rock in karst landform areas. The karst areas such as Guizhou, Yunnan, Guangxi are one of origin places of medicinal dendrobium such as dendrobium officinale, ecological planting is developed through the natural ecology conditions of the origin places, and the geo-authentic characters and the quality of a medicine material can be guaranteed. According to the method, the dendrobium is planted in the natural stone seams of the karst rock through the field natural environment condition in the karst landform areas, stone and stone seams which are suitable for planting the dendrobium are cleared, and the planting fixing method is determined. The survival rate of the dendrobium planted with the method is 90% or above. The method is suitable for ecological planting of the medicinal dendrobium such as the dendrobium officinale, D. nobile and D. devonianum.

The invention relates to a natural Bama mineral white mud facial mask and a preparation method thereof, and belongs to the field of beauty skin care products. The natural Bama mineral white mud facial mask is prepared by taking an ore (mainly contains algae dolomite) that comes from karst landform in Changshou country, Bama, Guangxi province as a main raw material, and auxiliary materials, which are used for cosmetic production, as the balance. The preparation method is relatively simple and convenient, and no environmental pollution is caused. The mud particles of the natural Bama mineral white mud facial mask are fine; the natural Bama mineral white mud facial mask contains no large particles, is soft for smearing, and possesses no toxic or side effects; and no friction on skin is caused. The natural Bama mineral white mud facial mask is capable of increasing elasticity of skin, delaying skin senescence, adjusting human body metabolism, activating blood circulation and dissipating stasis, avoiding wrinkle, realizing skin whitening, diminishing inflammation, sterilizing, and protecting skin from ultraviolet light; and is suitable for people of all ages and people with various skin types, and is especially suitable for people with sensitive skin.

The invention discloses an ecological breeding method of giant salamanders. The ecological breeding method comprises step 1, pond building which comprises building a plurality of breeding ponds in a natural cave; step 2, seedling throw which comprises selecting healthy disease-free seedlings which are bred artificially and throwing the seedlings into the small ponds or the large ponds according to the size and the strength of the seedlings, wherein 15 to 20 seedlings are thrown into every pond; step 3, bait feeding which comprises directly throwing fresh baits into the pond water according to the 10 to 15% of the total weight of the giant salamanders and performing the attachment breeding of small trash fishes, loaches, cold water shrimps and crabs ; step 4, daily management which comprises controlling the water level, maintaining the water temperature to be 16 to 20 DEG C and a ph (potential of hydrogen) value of the pond water to be 7.0 to 7.5, performing regular disinfection on a water body through bleach or chlorine dioxide and mixing the allicin, gallnut or rhubarb powder into the baits to perform once feeding every 15 days. According to the ecological breeding method of the giant salamanders, the constant breeding temperature of the natural cave and the weak base water quality formed by the Karst landform cave are beneficial to the growth and reproduction of the giant salamanders and accordingly the life of the giant salamanders is long, the nature of the giant salamanders does not degrade, the incidence of diseases is reduced, and the growth and reproduction rate and the survival rate are improved.

The invention provides a karst landform based hydropower station diversion tunnel plugging construction method. The karst landform based hydropower station diversion tunnel plugging construction method comprises the following steps of: S1, designing a diversion tunnel plugging scheme, making a principle that takes in-tunnel plugging as the principal thing and takes outside-tunnel seepage-proofingas the auxiliary thing, and adopting a plugging scheme of a temporary plug and a perpetual plug; S2, performing diversion tunnel temporary plug construction; S21: constructing a construction channel and a scaffold working platform; S22: mounting a water baffle steel plate gate; S23: mounting a stop log plate; S24: manufacturing and mounting a water drainage steel tube; S25: pouring concrete of thefirst section of the temporary plug; S26: performing grouting leakage stopping and reinforcing treatment on the first section of the temporary plug; S27: closing a butterfly valve; S28: pouring concrete of a second section of the temporary plug; and S3: constructing the perpetual plug. The hydropower station diversion tunnel plugging construction method can be adopted to effectively guarantee plugging of the diversion tunnel, so that safety of a dam is guaranteed.

The invention relates to a novel process for treating bauxite washing and screening tailing mud through a dry process and comprehensively utilizing the bauxite washing and screening tailing mud. The novel process is characterized in that coal ash or lime is added to perform modified pressure filtration dehydration after the bauxite washing and screening tailing mud is concentrated, so that a dry filter cake is formed to feed to a mine mined-out region to fill and perform land reclamation. Mass fraction of the added lime is smaller than or equal to 3%, and mass fraction of the added coal ash is smaller than and equal to 10%. The advanced process technology is adopted, so that a tailing mud base adopting a wet-process discharge mode can be cancelled, project investment and production operation cost are greatly saved, and safety and environment-friendly risk of production operation are reduced to be zero; meanwhile, beneficial conditions are provided for filling and land reclamation of the mine mined-out region in a karst landform region, treatment cost of waste slag coal ash is further saved, and environmental pollution is avoided; and compared with 1-millon concentrate coal washery, the novel process has the advantages that annular economic benefits are 20 millions of Yuan or more; and the novel process has extremely high economic benefits and an extremely high social value.

The invention provides a composite foundation with karst landform and a construction method thereof. The method comprises the following steps: (1) placing positioning plates in the bottom of a foundation pit with the karst landform; (2) drilling and digging down to form anchor holes in the positioning plates; (3) fixing anchor rods in the anchor holes; and (4) placing reinforcement cages in the foundation pit and pouring concrete. According to the technical scheme, through the change of the structural style of the upper foundation, the composite foundation with short piles and rock anchor rodsand the construction method, the composite foundation can be used in special geological conditions with thick covering layers and high-relief underlying bedrock surfaces, is free of influence of underground water level and hole wall stability, and is capable of effectively solving the technical problems in model selection, design and construction of power transmission line pole tower foundationsin mountainous areas in the west of Guangdong.