SPACING OF EXPANSION JOINT FOR THE LONG STRUCTURES AND PROVISON MADE BY THE INDIAN STANDARDS OF THE CODES AND SPECIFICATIONS BASED ON THE DESIGN REQUIREMENTS/VALUES (RETAINING WALLS) .

Maximum spacing of the expansion joint shall be seventy five feet in case of the backfill entire length and may start from ten metres onwards to the total length of the Retaining wall however it depends upon the Footing design and scope of the structure to be isolated from the total length required for the entire length of the wall to be used by the study made on the captioned subject matter deliberation required to be verified under code for construction and design. 25 mm gap may be provided between the adjecent parts of the construction over the Footing designed for the structure of Retaining wall but it may be filled in case of variation in the data for design and development of structure differs at the different portions of the Retaining wall and may crack it on the vertical shear reforms required to be filled with the steel strip and the bitumen fillets mixed with the sand to resist the temperature variations during the expansion of material used for the reinfoced concrete wall .Special type of the modular expansion joints should be provided in case of the bridges having wide deck and the large span length involving complex movement/rotation .As for as the case of Retaining wall is concerned it may start from ten metres length onwards to seventy five feet of the length of the structure as for as the case of backfill entire wall length is concerned however the isolation of the structure differs on the basis of the footings developed by the study made under code for construction and design &Scope of the earth pressure and the bearing capacity of the soil including the angle of repose maintaining the shape and size of the structure designed for the site of work and it's utilities protected by the study made and created for the safety of structure by using factor of safety against the negative reoccurring of forces and effects due to temperature and weather changes