nlwxpearo
Joined: 13 Dec 2010
Posts: 520
Read: 0 topics
Warns: 0/5
Location: England
|
 Posted: Fri 0:03, 11 Mar 2011 Post subject: Chifeng City, anti-fluoride water project life obs |
|
|
Chifeng City, anti-life observation of fluoride water projects
Process, selection of high quality well construction materials. Life can be extended. Iron than the life of the cement tube well tube length,[link widoczny dla zalogowanych], in this observation well construction iron tube wells in the first 5 years in a hatch, and now used in good condition. This shows that the quality and engineering process and well into the life of wells is directly related to _1J. 2.4 scrapped when the site conditions and the well construction process as well the lack of local hydrological and geological data into a well after the management and natural disasters and other factors,[link widoczny dla zalogowanych], resulting in 13 projects scrapped: These wells abandoned prior to 1989 are 10 Tsui. 1990 1 year scrapped 3. Which damaged three, two shortly after the emergence of well flow note, two wall collapse, two water level dropped and the goblet 7 =,[link widoczny dla zalogowanych], embroidery = j at j = jj V i Chinese Journal of Endemiology Volume 13, 1998 4 Five: Day five j at chu ji: depletion. Three tube wells because of mismanagement was closed, a frost crack is not for the water pipeline was repaired. 13 scrapped projects, as well scrap the 70s was higher than 80, Table 4. And different pipe. Abandoned wells of different depth and the difference was not significant. Table 4 wells in different years building up to scrap the situation with 2o years. The emergence of retirement project. There are many reasons. (1) well site selection lack of sufficient local geological structure,[link widoczny dla zalogowanych], hydrogeology, etc. 3J. After causing the flow of well copied, collapse and water depletion: (2) 70 years of drilling technology is poor,[link widoczny dla zalogowanych], as well technology behind the project was scrapped as a result many of the main reasons; (3) The human damage caused by poor management; (4) natural water damage caused by disasters and so on. Therefore, the well site selection. Well into the process, the merits of well construction materials, as well after the use of management, is the impact of anti-fluoride well every aspect of life to be a major factor strictly indispensable. = 6.56P (00543 Summary, asked in different years into the spring and frame rate differences, the main wife during the drilling process by different, well site selection torsion surgery, the quality of well construction materials, the impact of 'sound, card Shuai's beer is better than 7O era. Anti-fluoride wells deeper into the spring and the higher the frame rate, which the city area of high oxygen on a deep underground water quality is good. through this observation that the anti-fluoride cement well life is longer than iron tube well tube wells, the cement around the life of tube-wells ; 10-20 years, iron tube well in the
The post has been approved 0 times
|
|
