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Contamination, such as water, water/detergent solution, and grease, is common.
The protocol adopted in the study may be also used in practice by safety professionals.

This kind of fracturing fluid is comprised of a water-soluble salt, various quaternary ammonium halide salt surfactants as thickening agent.
[5] Oil and gas field development professional committee for standardization.
[6] Oil and gas field development professional committee for standardization.
SY/T5107-2005, Water based Fracturing Fluid Performance Test Method. (2005)

(a) Drilling through water-bearing ground must take water plugging and blocking measures.
In any accident of tunnel flooding, plan to relieve personnel trapped in blocked airbag space under water through drilling must obey the principle of balancing air and water pressure under which trapped personnel are in, and meanwhile take compulsory drainage system to avoid depressurizing airbag from drilling.
Two drilling locates were ultimately determined from on-site exploration: No. 1 hole was water-leaking well.
Drill vertically downwards the well in relevant place of lower position between the surface and seeper tunnel and therefore accumulative water in the tunnel will flow to Ordovician water-bearing ground which is below 80m distance from the tunnel automatically by drilling.
Personnel in Difficult in Underground Mine, Coal Science and Technology,37 (2009)38-41 [4] Lihu-sheng, LIU Tie-min, The research progresses and key scientific problems on emergency preparedness system , Journal of Safety Science and Technology, 6 (2009)5-10 [5] LIU Shao-tang and HU Li-xin, Attention to Application of Laser Range Finder in Field Events, Proceedings of First Joint International Pre-Olympic Conference Of Sports Science And Sports Engineering,Vol.2,World academic press, (2008)344-348 [6] LIU Shao-tang, Application of TPS in Field Events,Geospatial Information, 3 (2006)73-75 [7] Liu Shaotang,Xiao Haihong, Zhao Zhanyang, GPS Pilling Positioning System for Hang-Zhou Bay Major Bridge,Journal of southwest university of science and technology(Natural science edition) 4 (2005)42-45 [8] LIU Shaotang and Hu Lixin, Application of Beidou Navigation Satellite system In Logistics And Transportation, Proceedings of 2008 International Conference of Chinese Logistics and Transportation Professionals

A water-cement ratio of 0.4 was used with the addition of detergent at varying percentages (0%, 0.3% and 0.6).
The cubes were cured in water and tested at 7days, 14days and 28days respectively.
Its essential components include cement, aggregate (coarse and fine) and water.
It is therefore imperative for site engineers and other construction professionals to know the merits and demerits of the popular admixtures available.
The consumable part of the periwinkle is obtained after soaking in boiled water.

The book is divided 11 chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers and other interested parties to network.
In Chapter 2, Silva et al. present a theoretically study of water absorption in unsaturated polyester composites reinforced with caroá fiber at different temperatures by using a transient 3D mathematical model via ANSYS CFX® Software.
They show that the water absorption rate is faster in the vertex region of the composites, and mainly at higher temperature.

Horizontally, information is shared with professional technicians, contractors, and PCM.
The MEP system represents the functional backbone of buildings and contains six major parts: water supply, drainage, electricity, air conditioning (AC), fire fighting, and low current.
System dysfunctions (e.g., water leakage, blockage, unpleasant odors, and dropped signals) also occur, reducing system performance.
To respond to these challenges, the construction industry must develop novel engineering methods, use innovative professional techniques, and increase research and development efforts.
Bull, Blackie Academic and Professional, Glasgow (1993)

Assessment categories and parameters COMFORT: ENERGY: ENVIRONMENT: - Daylight - Thermal Comfort - Quality of air - Energy demand - Renewable energy - Primary Energy - Environmental impact - Water consumption - Building Sustainability Each of the mentioned nine quantitative parameters split into four levels of performance (1 - 4), where 1 represents the highest performance.
Quantitative criteria for ENVIRONMENT category Environmental loads Freshwater consumption Sustainable construction - Building’s primary energy consumption during entire cycle 1. < -150 kWh/m2 x year 2. < 15 kWh/m2 x year 3. < 150 kWh/m2 x year 4. < 200 kWh/m2 x year - Minimization of freshwater consumption during building use Calculation is based on the national average water consumption per building per year 1.
The house radar can be easily understood by everybody – professionals or non-professionals – and the conclusions related to projecting, designing and managing the resources and the automatization of the installations can be directory lines for the improving the quality of the buildings.

Templates, construction site water consumption and the likes to be reused, thus reducing construction resources.
Such as the Olympic Village with floor planning and materials management information system; South to North Water Transfer Project; the Hong Kong subway project; Hangzhou Olympic Sports Center Stadium; Shanghai World Expo China Pavilion; Shanghai GM-corporate pavilion in the design, construction, operation stage have used BIM technology.
When the construction schedule prepared is unreasonable, there will be non-normal sequence of construction, a blind rush to finish certain parts, and various professional construction interfaces all happening at once.
According to the 2011 China Construction BIM applications research report shows that 39% of the respondents in the project using BIM technology, 64% of users are on the design side. [9], but few understand the BIM in the design institute, building design professionals are also involved in a number of foreign large-scale construction projects have contact with but limited contact, and to truly master BIM essence are far and few.
Through this type of management model a variety of techniques are to use so that the team’s knowledge and experience may make contributions early on in the project, and can thus allow for the construction project on whole achieve its max life cycle.Therefore, IPD is the maximum of BIM value in project management implementation mode: BIM is an integrated database from a range of information using three-dimensional projects of geometry, physics, performance, spatial relationships, and professional rules that are combined into a database, that can assist project participants from the project concept stage various types of modeling projects in support of the BIM model, analysis, and simulation work to improve the scientific decision-making. [10] IPD advantage is obvious, but to truly implement, the challenge is enormous, as these challenges include technical, administrative, legal, and cultural fronts, its thus has a long road ahead of it.

Fig.1 General Landscape Fig.2 Special Landscape The use of environmentally friendly materials Environment friendly materials refers to the degradation of materials in the light, water or other effects, will produce a decrease of molecular weight, physical performance is decreased, and gradually absorbed by the environment that a class of materials.
The combination of professional recycling is a good channel.
The recovery of different materials and reuse recycling through the industry recycling channels of circulation can feed on a variety of recycling and reuse of professional recycling companies designated by different materials.

Focuses on the geological environment indicators of the establishment and use of AHP to determine factor weights, introduced the system development the overall design concept, the system's basic composition and structure, the system of professional modules, system function, and use experimental regional data to test the system.
It includes two levels: ① element layer, the regional geological setting, resource damage, geological hazards and environmental pollution factor 4; ② index layer, that is, each element including a number of indicators, including mine geological environment back ground conditions, index layer were Selected conditions, including topography, land pressure account for damage, landslides, water pollution, 20 indicators, as the framework of quality evaluation system (Table 1): Table 1: Evaluation indicators of mineral environmental assessment Element layer Background conditions of geological environment Geological Hazards Resource damage Environmental Pollution Index level Landscape condition Collapse Total destruction of the land pressure Water pollution Distribution of geological disasters Landslide Mineral resources Soil pollution Land use Debris flow Water damage Vegetation contamination Vegetation Distribution Ground subsidence Destruction of vegetation resources Average annual rainfall
According to the geological environment evaluation system needs, this system required the following data: the study area based on spatial data, remote sensing image data in the study area, and professional environmental data (soil, water, environmental samples for laboratory test data).
Use GIS for geological environment evaluation, and make full use of its spatial overlay analysis features, will affect the mine geological environment issues, including subsidence, ground subsidence and other geologic hazards and land use and destruction, and other indicators of water damage and single-factor analysis in the computer Stored as a layer, the application of geographic information system (GIS) layers overlay analysis features, combined with the evaluation of this model and determine the index weight calculation method, all layers overlay to generate new regional and layer on new Layers within the property sheet in accordance with its corresponding attribute value classification, the final comprehensive assessment of geological environment by mining district map, the principle shown in Fig 2.