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

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 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 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.

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 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 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.

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

The invention relates to a muck improvement material for earth pressure balance pipe jacking in an anhydrous sand layer, which consists of a modifier and a filler, wherein the modifier is uniformly mixed and stirred by bentonite, loess, external admixture and water , and, described bentonite is sodium-based bentonite, loess is Q3 loess, external admixture is polyacrylamide (PAM) and water glass, and the mass ratio of each component of modifier is: sodium-based bentonite: Q3 loess: polyacrylamide (PAM): water glass: water=50~70:30~40:1~2:20~30:1000; the filler is made by mixing and stirring loess and water, and the loess is Q3 loess, and The mass ratio of each component of the filler is: Q3 loess: water = 1:0.8~1. The application of the present invention can effectively improve the improvement effect of the dregs cut off from the face of the tunnel in the soil cabin during the construction of pipe jacking in the water-free sand layer, effectively reduce the settlement displacement of the soil in front of the tunnel face, and have great influence on the construction of pipe jacking projects. positive meaning.

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 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.

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.