39results about How to "Stabilize the soil" patented technology

In mesic environments, erosion control measures usually employ the establishment of vegetative cover by vascular plants in order to hold the soil in place. The current art often includes the application of seeds, chemical fertilizers, tackifiers, and mulches to promote the growth of vascular plants. However, arid environments so not support dense vegetative cover, but are instead dominated by photosynthetic microorganisms, primarily cyanobacteria and lichens. The cyanobacteria not only hold the soil in place, but also are the primary source of fixed nitrogen in arid environments. Disclosed herein, is a description of an apparatus and methods for the production and preservation of a photobiofertilizer as a means for repairing disturbed arid soils.

The invention discloses a submersed type inspection well which comprises a well cover above the ground as well as a shaft and a well body structure below the well cover, wherein the traditional drainage pipe is arranged below the shaft, a foundation is arranged between the lower end of the shaft and the drainage pipe, and the lower end of the shaft, the upper end of the foundation and the pipe arepoured into a whole; the diameter of the foundation is larger than the outer diameter of the shaft, and the bottom end of the foundation is located below the sheath of the traditional drainage pipe;and the bottom end of the foundation is inwards extended below the traditional drainage pipe. The invention also discloses a construction method for realizing the inspection well, which comprises thefollowing construction stages: (1) placing the inspection well; (2) submersing, joining and measuring the shaft; (3) manufacturing the foundation of the inspection well and communicating the shaft with the traditional drainage pipe; and (4) mounting a shaft cover plate and a ladder. By adopting the structure and the method of the invention, the inspection well is conveniently manufactured by adopting a submersed type construction method so as to be beneficial to carrying out long-distance jacking pipe construction and developing novel prefabricated inspection well structures and convenient for carrying out pipe engineering construction in downtown areas without excavating.

The invention belongs to the construction method of a deep foundation pit of industrial construction, particularly relates to a reverse operating construction method of a round deep foundation pit concrete piling support and a main structure and solves the problem that the existing construction method of the deep foundation pit is not suitable for complex geological condition and the construction cost is too high. The construction method comprises the following steps: the center of the foundation pit is adopted as the center and the outer sides of the position of the main structure are respectively distributed with pilings; the top parts of the pilings are poured with crown bore beams which connects the top parts of the pilings into one body; the first section of the foundation pit is excavated, reverse operation is carried out to the outer layer of the first section of the main structure; the outer layer of the first section of the main structure and the pilings are integrated by the crown bore beams so as to form a primary support of the foundation pit; the foundation pit is excavated by sections, reverse operating construction of the outer layer of the main structure is carried out by sections, which form a foundation pit support together; and normal operating construction is carried out to the inner layer of the main structure. The invention is applicable to poor geological condition and is particularly applicable to structural diversity of the soil layer in the depth range of excavation of earthwork, thus ensuring the stability of the soil body of the main structure in the construction period, greatly reducing the cost of construction measures and improving the construction speed.

A method for maintaining a stable soil by surrounding a chilled gas pipe with a material that has an antifreeze component that prevents the soil from freezing. By keeping the soil from freezing, it remains stable at all times. The method calls for excavating a trench, lining it with a geotextile membrane that keeps water from infiltrating into the trench, and then surrounding it with a bed of limestone (calcium carbonate) that is mixed with calcium magnesium acetate (CMA), which acts as an anti-freeze agent. The limestone-CMA mixture surrounds the pipe. The trench is covered by another geotextile membrane to completely seal it. In this way, the pipeline is surrounded by a material that is not subject to freezing. As such, it provides a stable bed for the pipeline to prevent frost heaving.

The invention discloses a construction method of near natural mangrove forests at reef shallows. Three layers of cofferdams sequentially including a first cofferdam, a second cofferdam and a third cofferdam are arranged, wherein the first cofferdam is formed through piling of hollow wave resistant blocks, and mangrove plants are planted; a pioneer protection layer is between the first cofferdam and the second cofferdam, a near natural recovery layer is between the second cofferdam and the third cofferdam, and local mangrove forest plants are planted; and a seedling supply layer is in the thirdcofferdam. According to the construction method of near natural mangrove forests at reef shallows, the pioneer protection layer is arranged outside, so that the effects of preventing wind and preventing waves can be achieved, destruction of the wind and the waves to the near natural recovery layer is decreased, and planting of the local mangrove forest plants in the near natural recovery layer isfacilitated; mangrove plantlets are cultivated in the seedling supply layer, and seedlings can be voluntarily and continuously supplied to the near natural recovery layer, so that long distance purchase and transportation of seedling sources can be avoided, and the production cost can be reduced; and three layers are divided, so that ecological stability and species diversity of mangrove forest communities are increased. The construction method disclosed by the invention is used for the field of mangrove forest planting.

The invention relates to a snow-melting agent, in particular to an environment-friendly snow-melting agent and a preparation method thereof. The environment-friendly snow-melting agent comprises, by weight, 10-60 parts of water, 1-5 parts of ethyl alcohol, 0.3-0.5 part of saccharose, 0.1-1.0 part of isosorbide, 0.1-10 parts of ethanediol, 0.5-50 parts of glycerine, 0.1-1 part of acesulfame, 0.5-5 parts of sodium tripolyphosphate, 0.1-1 part of aspartame, 0.5-1 part of sodium hexametaphosphate, 0.1-30 parts of methyl alcohol and 0.5-1 part of threitol. The snow-melting agent prepared through the method is very high in snow melting efficiency, convenient to transport, safe to use and store, convenient to spray, low in use labor intensity, small in labor cost, small in dosage, high in snow melting speed and free of residues, does not pollute water resources, does not corrode buildings or pavements, does not do harm to plants or aquatic animals, does not destroy the pH value of soil and does not cause salinization of the soil.

The present invention provides a method and raised bed for producing plant material in a container in the bed.

The invention relates to the technical field of pipe jacking construction, and aims to provide a mechanical pipe jacking construction process. The process comprises the following steps of lofting andrechecking; well construction; pipe jacking equipment and ground auxiliary facilities are installed; discharging the pipe jacking equipment out of the working well; a jacking axis is preset on the console, the position relation between a machine head of the pipe jacking equipment and the jacking axis is displayed in a laser point mode, and meanwhile a three-dimensional simulation model used for simulating the pipe jacking construction process is arranged in the application background; the application background obtains construction process data of the console in real time and inputs the construction process data into the three-dimensional simulation model, and the three-dimensional simulation model controls the application background to give an alarm; an operator adjusts the position of amachine head of the deviation correcting pipe jacking equipment until the position deviation between the laser point and the jacking axis is smaller than or equal to a preset value; pipe jacking equipment enters a receiving well; and jacking-in and soil-out device. The process has the effects of assisting an operator in finding the running direction of the machine head and adjusting the running direction of the machine head in time, so that the situation that the construction quality is influenced by personal errors during construction is reduced.

The invention relates to a method for controlling wind erosion of nursery stock bases in desert areas. The method relates to a nursery stock sand storm protection cover which comprises a cover body, a cover edge and a fixed drill rod, wherein the cover body is shaped like a round table; the cover edge is arranged at the bottom of the cover body; and the fixed drill rod is inserted into a fixed hole on the cover edge and then fixed in soil on the earth surface. After a nursery stock is planted in a desert area, the nursery stock sand storm protection cover is taken, and the cover body and a gap on the side wall of the cover edge are slightly unfolded to horizontally move toward the nursery stock; branches of the nursery stock are collapsed and pass through the gap; the cover body is arranged around the nursery stock; the protection cover is rotated to ensure that the gap on the protection cover is toward the downwind direction of the local predominant wind direction; and along with the growth of the nursery stock, when the sand storm protection cover limits the growth of the trunk, the cover body and the gap on the side wall of the cover edge are unfolded and then the protection cover is taken off. The method can be used for the forestation in desert areas with the advantages of improving the micro environment of nursery stock bases, preventing the wind erosion of the soil at the roots of the newly planted seedlings and improving the nursery stock survival rate, has a wide application range and can be widely applied to the construction projects of ecological forests and economic forests.

The invention discloses a submersed type inspection well which comprises a well cover above the ground as well as a shaft and a well body structure below the well cover, wherein the traditional drainage pipe is arranged below the shaft, a foundation is arranged between the lower end of the shaft and the drainage pipe, and the lower end of the shaft, the upper end of the foundation and the pipe are poured into a whole; the diameter of the foundation is larger than the outer diameter of the shaft, and the bottom end of the foundation is located below the sheath of the traditional drainage pipe;and the bottom end of the foundation is inwards extended below the traditional drainage pipe. The invention also discloses a construction method for realizing the inspection well, which comprises thefollowing construction stages: (1) placing the inspection well; (2) submersing, joining and measuring the shaft; (3) manufacturing the foundation of the inspection well and communicating the shaft with the traditional drainage pipe; and (4) mounting a shaft cover plate and a ladder. By adopting the structure and the method of the invention, the inspection well is conveniently manufactured by adopting a submersed type construction method so as to be beneficial to carrying out long-distance jacking pipe construction and developing novel prefabricated inspection well structures and convenient for carrying out pipe engineering construction in downtown areas without excavating.

Compositions, admixtures and methods for resisting erosion such as by wind and / or water are provided. The compositions comprise an emulsion, dispersion or suspension of a hydrophilic polymer. In preferred embodiments, the polymer comprises branched anionic polyacrylamide. The composition may be combined with water and optionally a matrix material, to form an admixture that is applied to the soil or other material needing erosion resistance. The matrix material preferably comprises cellulose and / or mulch. The methods comprise providing or forming an aqueous mixture of the compositions and applying them to an area of land or material sought to be provided with erosion resistance.

The invention discloses farmland ditch reinforcing ecological soil glue and a preparation method thereof. The ecological soil glue comprises the following raw materials in parts by mass: 65-70 parts of deionized water, 5-8 parts of sodium carboxymethylcellulose, 5-8 parts of acrylic resin, 10-15 parts of an anti-permeation water repellent agent, 2-3 parts of bacillus mucilaginosus, 2-3 parts of alkaline protease, 2-3 parts of xanthan gum, 0.1-0.2 part of potassium sorbate and 0.1-0.2 part of a defoaming agent. After soil is mixed with the soil glue provided by the invention, the soil in a field can be improved, so that the soil hardens, has high compactness, is not afraid of water, is impermeable and is free of mud cake generating and mud-pumping; the improved soil is very stable and can bear rainy seasons, chilly and frosty climates and other climates; years of tests in many places show that the improved agricultural engineering soil is stable and is intact after the rainwater immersion, ridges are firm, ditches have high impermeability, and original ecological characteristics of the soil are maintained; and the ecological soil glue is low in cost and easy to construct. The ecological soil glue can be applied to repair and reinforcement of field roads and side slopes, dam construction engineering, reconstruction of non-grade agricultural tractor roads and other engineering.

The invention discloses a vetiveria zizanioides and grass blanket combination based green slope protection method. The method comprises the steps of planting vetiveria zizanioides (1) on a side slope (3), laying the front end of a grass blanket (2) in an anchoring ditch (4), fixing the grass blanket (2) by using a fixing piece (5), then covering the ditch with soil and treading down the soil; laying the grass blanket (2) by expansion from top to bottom; and forming an opening by using a tool in a position where the vetiveria zizanioides (1) is met, sorting out the vetiveria zizanioides (1), arranging the grass blanket (2) flatly, and fixing the grass blanket (2) by using the fixing piece (5). According to the vetiveria zizanioides and grass blanket combination based green slope protection method, during the early stage, rainstorm is prevented from washing out the side slope and the unstable vetiveria zizanioides depending on an anti-washout function immediately generated after the grass blanket is laid; and during the later stage, with the degradation of the grass blanket, the projects such as the side slope and the like are protected from being washed out by atmospheric precipitation and surface runoff depending on a living protective layer formed by a dense and netty fibrous root system formed by gradual growth of the vetiveria zizanioides in the ground and a strong steam leaf hedge formed by gradual growth of the vetiveria zizanioides on the ground, thereby achieving the purposes of stabilizing a soil body, conserving water and soil, improving the environment and preventing disasters.

A lightweight concrete composition is mixed from cement, sand, water, and organic material, and placed on an area of soil, proximal a body of water, to protect the soil from erosion and the like due to water action. Preferably, the organic material comes from the area in which the soil is being stabilized, and may include soil, leafy matter, and ground up wood, forming a particulate organic material. Preferably, the final density of the resulting lightweight concrete composition is greater than the density of the water in the body of water, and less than the density of the soil being stabilized. A representative density range is between 62.43 pounds per cubic foot and 100.00 pounds per cubic foot.

The invention relates to the technical field of ecological restoration, in particular to an ecological restoration method for steep slopes in abandoned mining zones. A large number of high cutting slopes are present in the abandoned mining zones, and hard rock formations, steep slopes and poor soil texture in the zones are difficult points for ecological restoration. According to the ecological restoration method, in order to realize three-dimensional greening of the steep slopes, and solve the ecological restoration problems of slope surfaces different in drop height and poor in stability, after a series of operations of soil preparation, planting base plate making, planting base plate laying, planting substrate proportioning, planting substrate laying, water supplement and final-period management, soil in each planting base plate is stable; plant seeds can drop down, and provenances are sufficient; moreover, supplemented species are all local native plants, and adapt to the ecological environment of the local zone, so that water and soil erosion is reduced, the survival rate is high, and the restoration effect in the aspects of vegetation coverage and species diversity is remarkable; geological disaster and hidden dangers including water and soil losses, damage and the like are completely eradicated, and after several years, the supplemented species are gradually fused with the natural ecology.

The invention discloses a construction method for an underneath pass road in a road section with heavy traffic pressure, which comprises the following steps of: arranging a pile type ground anchor asa pile foundation; fixedly installing prestressed concrete tunnel gates at the two ends of the roadbed, holes are drilled in the roadbed side by side in the direction of the tunnel gates at equal intervals to generate reserved mud jacking holes, the roadbed and the tunnel gates are arranged on pile type ground anchors, and the bottoms of the tunnel gates are connected with the pile type ground anchors; steel pipes are arranged in the roadbed and comprise a top steel pipe and two side steel pipes, and reinforcing steel bars are arranged in the steel pipes; and grouting construction is conductedbetween the top steel pipes, between the top steel pipes and the soil body and in the top steel pipes. The method has the advantages of simple and advanced technology, reliable and stable safety, small influence degree on original road traffic, convenience in main body structure construction and the like.

The invention relates to the field of prevention and control of gully head erosion, and provides a gully head protection structure for developing an erosion gully and a construction method thereof. The gully head protection structure for developing the erosion gully comprises a grit chamber, a slow flow tank, a draft tube, a stilling basin and a fixing screen which are arranged in sequence and arein communication in sequence along the water flow direction, wherein the grit chamber and the slow flow tank are arranged on the surface outside a gully head; the stilling basin and the fixing screenare arranged at the gully bottom in the gully head; one end of the draft tube is in communication with the slow flow tank; the other end of the draft tube is in communication with the stilling basin;and the two sides outside the grit chamber are provided with interception gullies for introducing runoff water into the grit chamber respectively. Through the adoption of the gully head protection structure, the problems of single prevention measure, relatively high treatment cost, high land disturbance, great occupation and relatively weak rain flood resistance in an existing treatment method are solved.

The invention relates to a polluted soil heaping extraction-injection combined repairing device and method. The device comprises a water collecting pipe which is used for being arranged in polluted soil; the water collecting pipe communicates with an extraction pump; the water collecting pipe also communicates with a medicine injection pump; and the medicine injection pump communicates with a medicament container for accommodating leacheate. The device has the following beneficial effects: the aims of efficiently leaching soil and removing pollutants are fulfilled by extracting and injecting the soil leachate into the polluted soil heap, and the investment of leaching equipment is reduced.

The invention belongs to the technical field of cofferdam construction, and particularly relates to a combined temporary cofferdam for crossing a river channel and a construction method of the combined temporary cofferdam. The combined temporary cofferdam comprises a temporary cofferdam with a square cross section, the two ends of the temporary cofferdam correspond to the two banks of the river channel, and two inclined struts are arranged at the right-angle position of the temporary cofferdam; a square steel enclosing purlin is arranged on the inner side of the temporary cofferdam, a straight support is arranged in the middle of the square steel enclosing purlin and is parallel to the width direction of the square steel enclosing purlin, the temporary cofferdam is double-row cofferdams, each row of cofferdams are the same in structure, the two ends of each row of cofferdams are timber pile type cofferdams, and the middle of each row of cofferdams is a steel sheet pile type cofferdam; corresponding joints of the timber pile type cofferdams and the steel sheet pile type cofferdam are connected by welding seamless steel pipes and Z-shaped steel sheet piles; and a timber pile enclosing purlin is arranged on one side of the upper part of each row of timber pile type cofferdams correspondingly, and more than two opposite-pulling steel bars are bundled between a pair of timber pile enclosing purlins on the two rows of timber pile type cofferdams. Therefore, the temporary cofferdam is easy and convenient to construct, good in waterproof and anti-seepage performance and high in water flow impact resistance.

The invention provides external-packing filter materials of a dewatering closed conduit and preparing and using methods, wherein calcium-adding liquid slag is made as raw material; and different apertures of the external-packing filter materials are manufactured respectively directly at soil with 30% or more or less of clay particles (weight percentage). Preparing and using methods for filter materials are also provided. According to the invention, industrial solid waste calcium-adding liquid slag is completely utilized so as to change waste material into things of value; in addition, the soil around a closed conduit can be effectively kept at a stable state, soil particles are prevented from blocking the filter materials and the closed conduit, permeation systems around the closed conduit are improved, and dewatering and salt-elimination effect of the closed conduit is improved.

The invention relates to a slope greening planting system and a construction technology. The system comprises a supporting frame two ends of which are supported on the top and the bottom of the slope, a moving device installed on the supporting frame and used for driving the supporting frame to move in the length direction of the slope, a pit digging device installed on the supporting frame and used for digging land of the slope, a planting device installed on the supporting frame and used for planting plants in a foundation pit dug by the pit digging device, and a soil fixing device installed on the supporting frame and used for fixing the plants. When green plants are planted on the slope, the system has the advantages of being high in planting efficiency and high in worker safety, and therefore the effect of being high in slope greening efficiency is achieved.

An apparatus straddles and traverses a covered raised planting bed to create holes in the raised bed for production of container plants.

The present invention provides a method and raised bed for producing plant material in a container in the bed.

The invention discloses a novel building construction quality monitoring device, and belongs to the technical field of building construction. The invention discloses a novel building construction quality monitoring device and a using method thereof. The monitoring device comprises a distance sensor and a computer. A grouting machine is arranged on the outer side of the distance sensor. The distance sensor is fixedly connected with a distance measuring column through a connecting rod. The lower end of the distance measuring column is fixedly connected with a foundation. A vertical plate is arranged on the right side of the distance sensor. A bearing plate is arranged below the foundation. A grouting pit is formed in the lower side of the grouting machine, and the output end of the groutingmachine is fixedly connected with a connecting pipe. In the building construction process, the settlement condition of the foundation is detected in stages and fed back to technicians and constructorsin time, and when settlement reaches a certain degree, cement paste is injected into pre-buried devices of different layers to stabilize the foundation, so that the stability of the foundation is improved, and inclination and collapse accidents of a building are reduced.

The invention relates to a snow-melting agent, in particular to an environment-friendly snow-melting agent and a preparation method thereof. The environment-friendly snow-melting agent comprises, by weight, 10-60 parts of water, 1-5 parts of ethyl alcohol, 0.3-0.5 part of saccharose, 0.1-1.0 part of isosorbide, 0.1-10 parts of ethanediol, 0.5-50 parts of glycerine, 0.1-1 part of acesulfame, 0.5-5 parts of sodium tripolyphosphate, 0.1-1 part of aspartame, 0.5-1 part of sodium hexametaphosphate, 0.1-30 parts of methyl alcohol and 0.5-1 part of threitol. The snow-melting agent prepared through the method is very high in snow melting efficiency, convenient to transport, safe to use and store, convenient to spray, low in use labor intensity, small in labor cost, small in dosage, high in snow melting speed and free of residues, does not pollute water resources, does not corrode buildings or pavements, does not do harm to plants or aquatic animals, does not destroy the pH value of soil and does not cause salinization of the soil.

The invention discloses a soil sampling device for geological exploration, and relates to the technical field of geological exploration. The soil sampling device comprises a base, two fixed plates arefixedly arranged at the top of the base, a connecting box is fixedly arranged between the tops of the two fixed plates, a movable plate is movably arranged between the two fixed plates, a soil sampling pipe is fixedly arranged at the bottom of the movable plate, and fixed frames are fixedly arranged at the two ends of the top of the base. Two first gears are arranged to rotate, so that the two first gears can drive two screw rods to rotate through two second gears, the two screw rods can jointly drive the movable plate to move downwards through two nut seats, and the movable plate can drive the soil sampling pipe to move into soil to perform soil sampling work; the effect of automatic soil taking is achieved, unnecessary time and effort of workers due to the soil state are avoided, and meanwhile the effect of improving the working efficiency is achieved.

The invention relates to the technical field of pipe jacking construction, and aims to provide mechanical pipe jacking construction technology, which includes lofting review; well construction; pipe jacking equipment and ground auxiliary facilities installation; pipe jacking equipment out of the working well; console preset jacking axis, The positional relationship between the head of the pipe jacking equipment and the jacking axis is displayed in the form of laser points. At the same time, the application background is equipped with a three-dimensional simulation model for simulating the construction process of pipe jacking; the application background obtains the construction process data of the console in real time, and input In the three-dimensional simulation model, the three-dimensional simulation model controls the background alarm; the operator adjusts the position of the head of the pipe jacking equipment until the position deviation between the laser point and the jacking axis is less than or equal to the preset value; Receiving well; jacking and unearthed. The invention has the effect of assisting operators in finding out the running direction of the machine head and adjusting the running direction of the machine head in time, so as to reduce the situation that the construction quality is affected by human errors during construction.