Advanced Materials Research Vols. 706-708

Abstract: The structure of the closed square storage bunker main, secondary beam are designed in detail, and has carried on the simulation using finite element analysis software ANSYS, results show that the main structure of the design to meet the design requirements.

Abstract: The coal seam floor water inrush risk assessment is the basis and foundation of inrush water disaster prevention^[1-, this paper uses five figure double coefficient method evaluating NO.16 coalseam floor water inrush risk of Xin'an Coal Mine. Contour figure of the destroyed floor protection layer depth, the floor protection layer thickness, the head above seam floor, the effective protection layer thickness, and evaluation figure of mining above aquifer which can guide coal production were drawn to given the security zone within mining area and ensure safe mining.

Abstract: It introduces a kind of technique method that recycling cyanide zinc plating waste liquid in the laboratory, involving the fields in electroplating and comprehensive utilization of waste liquid. The process includes the following steps: first remove impurities in the waste liquid, and then add hydrochloric acid to adjust PH value. Using cation-anion and resin, through ion exchange method, remove disturbing ion Cu²⁺, Cr₂O₇^2- in the cyanide zinc plating waste liquid, thus cyanide zinc plating solution can be recycled. Using sodium hydroxide solution to make resin reproduced, and then add NaHSO₃, NaOH solid to precipitate Cu²⁺ and Cr⁶⁺ in it, and do incineration treatment. This invention provides an easy and effective method of recycling cyanide zinc plating waste liquid in the laboratory, which improves the utilization of resources, and reduces pollution.

Abstract: It introduces a kind of technique method that recycling waste liquid in the sulfate copper plating technological experiment in the laboratory, involving the fields in electroplating and comprehensive utilization of waste liquid. This process includes the following steps: first filter the waste liquid to remove impurities in it, and then using electrolytical method to recycle copper in the waste liquid. Add NaOH, NaHSO₃ into the solution, through chemical deposition remove heavy metal ions in the waste liquid, and carry on the harmlessization handle to sediments, finally deal with the waste liquid through a semipermeable membrane to get pure water. This process provides a kind of simple, easy to operate, low cost method for the treatment with waste liquid of electroplating produced in the laboratory, which is toxic and pollute the environment.

Abstract: In recent years, soil nailing wall supporting technology is widely applied in the design of pit supporting. However, in the design of deep foundation pit supporting in miscellaneous fill site, the values of cohesion and angle of internal friction, that is c and φ, are too conservative to be chosen, so the security and economy cannot be obtained together. To study the influence of c and φ values on deep foundation pit supporting design in miscellaneous fill site, Lizheng-FSPw60 was the analysis software, and the circular sliding simple slice method was the theory. It is concluded that cohesion and internal friction angle of the soil have great influence on the stability of the soil nailing wall. Analysis and practice show that if c and φ values are reasonably chosen, the slope supported by soil nailing wall in thick miscellaneous fill site will be much safer, and the project will be less wasteful.

Abstract: Studying the artistic expression of light and glass in modern architecture space by French designer Odile Decq, this article analyses the “agile space effect” of glass in architecture space,according to the glass characteristics of transparent and liquidity. The variability and advantage oflight and glass in architecture space is discussed here, light techniques in the information age produced by the building space effect and the aesthetic value is highly significant.

Abstract: Experimental studies of the long-term performance such have been done in this paper for sea water and sea-sand concrete and sea water and coral sand concrete, such as the elastic modulus, frost resistance and corrosion of reinforcement behavior. The test results show that the compressive elastic modulus of the sea water and sea sand concrete and the sea water and coral sand concrete are slightly lower than that of ordinary concrete, while the adding of fly ash or ground slag in them lead the late compressive elastic modulus slight increase. Compared with the ordinary concrete after freeze-thaw cycle, the mass loss rate and the compressive strength loss rate of the sea water and sea sand concrete and coral sand concrete are slightly larger, but slightly reduced by mixing with ground slag in the concrete, while a little high by mixing with fly ash. Due to the presence of Cl- in the saltwater and sea sand concrete and coral sand concrete, [Cl-] / [OH-] values will be larger, which leads to corrosion of internal reinforced, so it is necessary to adopt appropriate ways to modification for the concrete and reinforced.

Abstract: No other materials such as glass so profoundly change our life world. As the most times characteristics of building materials, glass not only meet the building function demand, but also for building bring unpredictable shadow charm and rich artistic emotion. Its light fully, and colorful blurred characteristics in a certain extent enrich the building space perception and mental connotation, but also change our city, our life, even the people themselves. Mastering glass material performance and unique emotional expression will be for glass buildings bring innovative opportunity and perspective, which brings a more brilliant chapter for architectural creation.

Abstract: to study scale effect on the density of rock-fill materials, the relative density tests were carried out by physical tests and numerical tests. Fractal geometry theory was drawn into the gradation of rock-fill materials. Then, the fractal properties of scale effect on the density were investigated. There are close relations between fractal dimension D and densities of rock-fill materials. The densities are maximal when D is the critical value Dc. Furthermore, Dc is independent of the relative density Dr and the maximal diameter dmax. Truncation error is one of the main factors of scale effect of densities of rock-fill materials. The achievements in the paper lay a good foundation for further studying scale effect of rock-fill materials with fractal geometry theory.

Abstract: Because of complex flow characteristics, polymer flooding produced liquid can bring many problems such as serious eccentric wear of rod and tube, breaking and divorcing of rod, and shortened cycle of pump-check. Flow resistance experiment was carried out aimed at these problems. Experimental results show that on-way resistance that sucker rod acts on polymer flooding produced liquid mainly depends on the viscosity of liquid and its elasticity can be ignored; Local resistance caused by couplers and centralizers is mainly related to the velocity of produced liquid, while the effect brought by mass concentration can be neglected; Resistance that pump valve endued and rate of flow agree to the exponential law; Total resistance of pump valves is generated mainly by down-valve and the law of resistance that water and polymer solution act on valves are similar. The problems that eccentric wear of rods and tubes is serious and the cycle of pump-check is shortened are not completely caused by up stress increasing after polymer flooding.