Rubber dam in the operation process, due to the action of the water flow, will cause the vibration of the dam bag or the phenomenon of flapping, making the dam bag and the bottom concrete surface or side wall surface friction, so that the surface of the dam bag will be subjected to varying degrees of wear and tear. Therefore, in the daily operation and management, the maintenance of the dam bag should be strengthened to carry out scientific operation and management.

(1) Before the dam bag is inflated and used, the silt on the dam bag, especially gravel, must be cleaned up. Sand and gravel if not cleaned in time, when the dam bag is inflated, the sand and gravel will be sandwiched between the dam bag and the side wall, and with the creep of the dam, the sand and gravel will cause abrasion of the dam head and lead to water leakage.

(2) The parts of the dam bag in contact with the foundation footing, especially the downstream footing and side walls within the collapse range of the dam bag, shall take measures to make their surfaces smooth and level to prevent abrasion to the dam bag. In the foundation construction, the construction quality of the downstream bottom plate shall be improved, and after the concrete is poured, the surface shall be calendared and treated so that it can be molded at one time. For the construction of the side wall, a new template should be used or new technology should be adopted to ensure that the concrete is poured and molded at one time and the surface of the side wall is smooth and even.

(3) Rubber dam is a flexible structure, the dam bag overflow, in the upstream and downstream water level and the top of the dam overflow water depth of unfavorable combination of the situation, there may be a slight tremor or violent vibration, which causes different degrees of wear and tear of the surface of the dam bag, the operation should be to find out the vibration of the dam bag occurs when the dam height and the upstream and downstream water level and the top of the dam overflow depth of the relationship between the dam height, through the adjustment of the height of the dam, to avoid the occurrence of the dam bag in overflow By adjusting the height of the dam, avoiding creep, flapping or vibration of the dam bag during overflow.

(4)Do a good job of water cap protection, reduce wear and tear with the dam bag, water cap in the production, should be made into a circular arc, the cap body and the inlet and outlet flange on the flange connected together. Water cap to meet the requirements of the appropriate amount of water at the same time, should reduce its height. If the water cap is too high, in the collapse of the dam overflow, the silt in the water may cause impact on the dam bag at the water cap, resulting in wear and tear or even tear of the dam bag. The diameter of the cap should be larger than the diameter of the filling and draining pipe, and the edges are rounded to reduce the wear and tear of the dam bag.

(5) rubber dam in winter operation, in order to eliminate the impact of ice pressure on the extrusion of the dam bag, artificial or mechanical ice-breaking methods can be used, here we take the automatic ice-breaking pipe technology, the use of water storage area of the lower layer of water and the top layer of the temperature difference between the ice cap, through continuous extraction of ice cap below the higher than 0 ° C water melting the lower than 0 ° C ice cap, in order to achieve the purpose of ice-breaking.

(6) When the dam bag is filled and operated, promptly beat the floating objects upstream of the flooded dam bag that may puncture the dam bag, and promptly remove the sand, gravel and other debris that may puncture the dam bag accumulated on the bottom plate of the collapsed area of the dam bag, so as to prevent abrasion of the dam bag after the dam bag has collapsed.

(7) Eliminate the rubber dam super-high, overpressure operation. Ultra-high, overpressure operation will be a direct threat to the safety of rubber dams, damaging the original stress structure of the dam bag, thereby accelerating the aging of the dam bag, shortening the service life of the dam bag.