地下室渗漏的原因及其抗渗漏处理措施（Causes of leakage in basement and anti seepage measures）.doc

地下室渗漏的原因及其抗渗漏处理措施（Causes of leakage in basement and anti seepage measures） Causes of leakage in basement and anti seepage measures 0 Introduction With the development of urban construction, more and more high-rise and super high-rise buildings have been built, and underground garage and underground building are also increasing. The leakage of basement is quite common, and it has become one of the common problems of quality. Especially the underground water level is high, and the soft soil foundation, construction design, the uneven settlement of concrete cracks, vibration, ramming the less dense produce leakage phenomenon is also quite common leakage plugging cost is quite high, serious and even affect the use function. 1 causes of leakage 1.1 design reasons 1.1.1 deformation joint setting unreasonable according to the specification, the maximum deformation of the reinforced concrete structure wall spacing regulations of 20-45m, but in practice often will enlarge the scope of 1-2 times, even without leaving the post pouring belt, but also do not take other measures, although brought to the construction of convenient, but also to keep the leakage hidden danger. 1.1.2 design of reinforcement reinforcement due to unreasonable design is unreasonable, the constraint effect on concrete shrinkage reducing, with production and temperature deformation, stress concentration, make the concrete crack and leakage problems left behind. 1.2 construction reasons 1.2.1 deformation joint setting is improper. According to the design requirements, the deformation joint shall be set, such as the post pouring joint, which usually needs to be constructed by 40-60d. Extended construction period, if the grass-roots cleaning or pouring bad, will leave leakage hidden; as another settlement joints, usually to the main building after the cap can be built, such a longer construction period; if improper construction will also leave hidden dangers. Construction defects of uneven construction joint