Current Status Of Manhole Installation For Underground Integrated Communication Pipelines

After the construction of underground integrated communication pipelines is completed, on the surface, the main network is only different in manhole covers, and the grouping of pipe holes in the manholes must refer to the manhole distribution in the design drawings to find the Stainless Steel Concentric & Eccentric Reducer positions of each pipeline unit. Therefore, in the actual survey and design, the pipe hole occupation cross-section diagram of each pipeline unit should be strictly followed to indicate which pipeline unit occupies which pipe hole position this time. (When laying cables, construction should be carried out according to the drawings. At the same time, the optical cable should be firmly fixed on the inner wall of the manhole. The optical cable laid first should be fixed on the uppermost end of the inner wall of the manhole, and a label or color paint should be applied to distinguish it from other pipelines. Despite this, in actual cabling, the wrong pipe holes are often placed, which brings inconvenience to construction and maintenance. "Some time ago, two pipeline units misplaced their pipes, which affected the relationship between the pipeline units. In addition, the manhole cover was wrong, resulting in the optical cable not being long enough to enter the machine room or being unable to be led to the designated position. Therefore, it is very important to re-examine the current status of the pipeline and plan the future setting of the pipeline manhole.