多头小直径深层搅拌桩水泥土截渗墙接头的防渗处理（Anti-seepage treatment of cement soil cutoff wall joint with multi small diameter deep mixing pile）.doc

多头小直径深层搅拌桩水泥土截渗墙接头的防渗处理（Anti-seepage treatment of cement soil cutoff wall joint with multi small diameter deep mixing pile） Small diameter deep mixing pile of cement soil impervious wall joint seepage treatment Source: China paper Download Center [06-02-22 08:58:00] author: Hu Deqiang Zhao Lan Zheng Dehua editor: studa9ngns - Abstract: the small diameter deep mixing pile of cement soil impervious wall joint seepage treatment, the dislocation lap form, after injection detection, the lap joint has the advantages of simple construction, anti-seepage effect is good, without any increase in construction equipment and auxiliary technology. Keywords: deep mixing pile joint seepage A small diameter deep mixing pile, thin cutoff wall forming characteristics The use of seepage of underground continuous wall as basement, because the project cost has been in anti-seepage technology more expensive, so its application is limited. In recent years there has been a thin cutoff wall at home, so as to expand the application fields. Wuhan railway engineering machinery factory in 1998 to declare the patented DZJ25 small diameter deep mixing pile machine, the thickness of the construction of cutoff wall is 8cm ~ 45cm, 4 years in Jiangsu, Hubei, Jiangxi, Shandong, Fujian Province, is widely used and has achieved good social benefits. Is the use of deep mixing cement slurry and soil through the blade forced mixing forming wall technology. Small diameter deep mixing pile machine come out, make each drilling more secure form into one lap of the wall, the continuity and uniformity of the row type cement soil wall has greatly increased. From the testing results to see: the wall overlap tidy and beautiful, uniform and continuous wall vertical deviation is small, to meet the requirements of the lap. This method is suitable for clay, silty clay, silt and sand density below medium, and the influence of the construction progress and quality is not affected by the underground water level. From the m