Underground structure protection system with dynamic and static load damping protection system at top end

Abstract

The invention provides an underground structure protection system with a static and static load damping protection system arranged at the top end, and belongs to the field of underground infrastructure. The underground structure protection system comprises an underground structure, a top soft protective pad inter-layer, a dynamic and static load damping protection system at the upper end of the underground structure, a fixing mounting piece, an extrusion energy dissipation plate layer, a holed side part bearing support energy dissipation plate, a foamed aluminum built-in fit plate, an inner elliptical hole, an energy dissipation rib, a waveform connection damping friction extrusion plate, a damping friction extrusion plate unit, a built-in friction damping energy dissipation tube, an energy dissipation medium, a filling damping sand layer, a coordination connection elastic rod and a fixing piece. The underground structure protection system has the advantages that the bearing capacity and the damping capacity of the underground structure can be remarkably enhanced, the vibration energy transmitted to the underground structure by the ground dynamic load and the static load can be resisted, a complete anti-vibration protection structure is formed, meanwhile, the holed side part supporting energy dissipation plate can enhance the bearing capacity of the underground structure, and the problem that the stress is locally larger caused by the ground load to the underground structure is avoided.

Description

technical field [0001] The invention belongs to the field of underground infrastructure, in particular to an underground structure protection system with a dynamic and static load shock-absorbing protection system arranged at the top. 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

Images