Ballast bed precast slab production mold with ultrahigh adjustment support

Abstract

The invention belongs to the field of rail transportation, and in particular relates to a mold for producing a ballast bed prefabricated slab with a super-height adjustment bracket. Including the mold body and the super-height adjustment bracket, the mold body is provided with an inner rail platform relief hole and an outer rail platform relief hole on the mold body corresponding to the position of the ballast prefabricated slab rail platform. There is an inner rail platform forming height adjustment groove in the hole, and an outer rail platform forming height adjustment groove is provided in the outer rail platform relief hole, and the inner rail platform forming height adjustment groove and the outer rail platform forming height adjustment groove are respectively Fixed on the super-height adjustment bracket, there are adjustments between the inner rail platform relief through hole and the inner rail platform forming height adjustment groove, and between the outer rail platform relief through hole and the outer rail platform forming height adjustment groove Clearance, the super-height adjustment bracket is hingedly connected with the mold body on the side corresponding to the forming height-adjusting groove of the inner rail platform, and the super-height adjustment bracket is provided with a height adjustment between the side corresponding to the forming height-adjusting groove of the outer rail platform and the mold body locking device.

Description

technical field [0001] The invention belongs to the field of rail transportation, and in particular relates to a mold for producing a ballast bed prefabricated slab with a super-height adjustment bracket. Background technique [0002] Vibration and noise are recognized as the most widely affected public hazards, and they are also a problem that needs to be solved urgently in the development of rail transit in recent years. Among the existing rail transit vibration and noise reduction technologies, the most successful practical application is the component floating technology, typically the floating ballast bed technology, which has high vibration isolation efficiency and stable working performance, which has become a consensus in the industry, such as patent No. It is a built-in floating ballast bed structure disclosed in Chinese patent ZL200410035441.1. However, the construction period of the existing floating ballast bed is generally long, the standard floating slab lengt...

AI Technical Summary

Problems solved by technology

However, during the production process, it was found that due to the large number of curved sections in the track line, in order to ensure the safety of vehicles, there are generally superelevation on the outer track of the curved section. The traditional method of synchronously completing the superelevation when pouring the foundation surface has been proved by engineering verification that it is difficult to guarantee Accuracy; setting superelevation directly on the track bed is a new technical idea, but since the superelevation of the curved section of the track line is a continuous process of height change, there are many elevation changes, and the bearing capacity of the existing track bed mold The height of the rail platform is fixed. One mold can only process one kind of rail platform height. Ultra-high changes require a large number of production molds, and the cost is very high, so it has not been realized so far

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