Underground utility tunnel with multi-directional shock absorption support function

Abstract

The invention provides an underground utility tunnel with a multi-directional shock absorption support function and belongs to the field of underground infrastructures. The lower part of the utility tunnel is provided with a gravel load bearing base layer, inner connecting plates are arranged at the upper part and the two sides of the utility tunnel, and outer connecting plates are arranged at theouter sides of the inner connecting plates. Upper shock absorption reinforcing support components are arranged above the part between the inner connecting plates and the outer connecting plates, andside shock absorption reinforcing support components are arranged at the two sides of the part between the inner connecting plates and the outer connecting plates. The bottom ends of the inner connecting plates and the outer connecting plates are connected through lower connecting plates. A concrete mortar protective casing is arranged at the outer sides of the outer connecting plates, 37 lime soil is arranged at the two sides of the concrete mortar protective casing, and backfill tamped soil layers are arranged at the upper parts of the 37 lime soil and the concrete mortar protective casing.The underground utility tunnel has the beneficial effects that the multi-directional shock reducing and shock absorbing capability and bearing support capability of the underground utility tunnel structure can be obviously improved, and the damage of multi-directional load on the utility tunnel structure can be reduced.

Description

technical field [0001] The invention belongs to the field of underground infrastructure, in particular to an underground comprehensive pipe gallery with multi-directional shock absorbing support functions. 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 between overhead lines and greening...

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 comprehensive pipe gallery, 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. The surroundings of the pipe gallery structure will be damaged by side lateral loads at the same time, which will increase the maintenance cost of the underground pipe gallery in the later period and shorten the service life of the underground pipe gallery. Therefore, it is necessary to build a reasonable Shock-absorbing protection structure for load damage to pipe gallery

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