Shock-resistant system for enhancing bearing and shock-absorbing capacity of underground comprehensive pipe gallery

Abstract

The invention provides a shock-resistant system for enhancing bearing and shock-absorbing capacity of an underground comprehensive pipe gallery, and belongs to the field of underground infrastructures. The system comprises a ground, backfilled rammed soil, a 37 lime soil layer, a gravel bearing base layer, the comprehensive pipe gallery, a shock-resistant outer covering protective layer, a protective outer layer and a load shock-absorbing bearing installation device, wherein the backfilled rammed soil is arranged below the ground, the load shock-absorbing bearing installation device is arranged at the bottom of the backfilled rammed soil, the comprehensive pipe gallery is arranged below the load shock-absorbing bearing installation device, the shock-resistant outer covering protective layer is arranged on the outer layer of the comprehensive pipe gallery, the protective outer layer is arranged on the outer layer of the shock-resistant outer covering protective layer, the 37 lime soil layer is arranged around the protective outer layer, and the gravel bearing base layer is arranged below the protective outer layer and the 37 lime soil layer. The shock-resistant system has the beneficial effects that the bearing capacity and the shock absorption capacity of the underground comprehensive pipe gallery can be enhanced, the maintenance cost in the later period of use is reduced, a series of major accidents caused by the impact damage of loads on the pipe gallery can be prevented, and the underground comprehensive pipe gallery has high practicability and wide applicability.

Description

technical field [0001] The invention belongs to the field of underground infrastructure, in particular to an anti-seismic system for enhancing the load-bearing and shock-absorbing capacity of an underground comprehensive pipe gallery. Background technique [0002] The construction of the comprehensive pipe gallery is vigorously proceeding, and the area reached by the comprehensive pipe gallery will become more and more extensive. The underground integrated pipe gallery plays an important role in meeting the basic needs of people's livelihood and improving the comprehensive carrying capacity of the city, reducing the cost of multiple road surface renovations and maintenance costs of engineering pipelines. It maintains the integrity of the road surface and the durability of various pipelines, and facilitates the laying, increase and decrease, maintenance and daily management of various pipelines. And the pipelines go into the ground together to reduce the contradiction betwee...

AI Technical Summary

Problems solved by technology

However, the ordinary comprehensive pipe gallery can only withstand various loads on the ground in the short term, and it is difficult to achieve long-term seismic resistance. The top plate directly bears the dynamic load and static load, and the walls on both sides not only bear the dynamic load and static load of the top plate. It also needs to bear the lateral load of the side soil layer. Therefore, in order to enhance the bearing capacity of the comprehensive pipe gallery and the ability to resist the impact of ground loads and prevent structural instability, the walls need to be set very thick, and this structure is cast on site or The production of prefabricated parts requires a large amount of work, a long construction period, and high construction costs, which is not conducive to the long-term promotion and use of earthquake-resistant integrated pipe galleries, and will greatly increase construction and maintenance costs. In order to resist the dynamic load and static load from the ground, it is very important to form a complete seismic protection structure, so as to avoid the phenomenon that the ground load causes the stress of the pipe gallery to increase locally and is unfavorable to the structure

[0003] At this stage, the load resistance capacity of the pipe gallery needs to be improved. It can only guarantee the load resistance effect under normal natural conditions. To deal with emergencies (such as earthquakes, explosions and other disasters), the structural stiffness and strength design is obviously insufficient, and there will be pipelines. Scattering, structural collapse and other hidden dangers, which not only increase the maintenance cost in the later period, but also affect the operation of the entire public municipality, and bring inconvenience to residents' lives. Some seismic protection structures of pipe corridors in the prior art have many shortcomings, such as It is not conducive to the long-term construction of underground utility tunnels, or the functional design is not perfect and unreasonable, some devices cannot guarantee long-term durability, and sometimes they are prone to failure, some structural designs are more complicated, and some cost is too high, so the construction of a reasonable It is very important to eliminate the seismic protection structure of the ground-to-pipe gallery load impact

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