Seepage-proof water-stop cushion for inspection shaft

Abstract

The invention discloses a seepage-proof water-stop cushion for an inspection shaft. The seepage-proof water-stop cushion comprises a cushion plate made of elastic flexible materials, wherein a round, fan-shaped or rectangular through hole is formed in the center of the cushion plate; the outer ring of the cushion plate has the same shape as the through hole; the size of the through hole is same as that of the cross section of the inner wall of the inspection shaft; and the size of the outer ring of the cushion plate is greater than that of the cross section of the outer wall of the inspection shaft. According to the technical scheme, the cushion plate is laid between the upper surface of a walling crib of the inspection shaft and the lower surface of a well lid base, the edge of the inner ring of the cushion plate is consistent with the inner ring of the inspection shaft wall, and the outer edge of the cushion plate is laid between a roadbase and a pavement, so that the elastic sealing function of the cushion plate can effectively prevent rainwater on the pavement from seeping along the crack and gap between the outer side of the inspection shaft wall and the pavement, a rammed earth layer around the inspection shaft is prevented from losing strength after long-term immersion by rainwater, the roadbase can maintain favorable consistency and bearing capacity all along, the smoothness of a road can be maintained, the inspection shaft can be protected, and the service life of the inspection shaft can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of civil construction, and in particular relates to an anti-seepage and water-proof pad for inspection wells. Background technique [0002] At present, the materials of well rings and manhole cover bases of inspection wells on urban roads are generally prefabricated concrete, metal or plastic, which are different from asphalt pavement, have different characteristics of thermal expansion and contraction, and belong to different processing procedures and During a certain period of time, under the action of dynamic load for a certain period of time, gaps or cracks will be formed between the base of the manhole cover or the well ring and the road surface and base. In the rainy season, the rainwater will seep down along the above gaps or fissures, and the long-term effect will affect the solidity of the foundation around the well wall. In addition, the inspection well has been crushed by vehicles for a long time....

AI Technical Summary

Problems solved by technology

In the rainy season, the rainwater will seep down along the above gaps or fissures, and the long-term effect will affect the solidity of the foundation around the well wall. In addition, the inspection well has been crushed by vehicles for a long time. Over time, the rammed earth layer around the inspection well will easily collapse. Even affect the stability of the inspection well foundation

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