Shock insulation groove with gradient groove width

Abstract

The invention discloses a shock insulation groove with the gradient groove width. The shock insulation groove is characterized by comprising a groove body and a circle of continuous wall which is arranged on the inner wall face of the groove body, the width of the groove body is in inverse relation with the distance between the groove body and the focus, and one or more rows of shock insulation short piles are distributed at the bottom of the groove body. The shock insulation groove has the advantages that two shock insulation modes of the shock insulation groove and the shock insulation shortpiles are integrally combined, the shock insulation effect is effectively improved, the depth of digging the shock insulation groove can also be reduced, the width of the groove body is gradually reduced from the center to the two sides in the groove length direction, and the engineering digging amount is effectively reduced.

Description

technical field [0001] The invention relates to the field of anti-seismic construction of rock and soil, in particular to an earthquake-isolation ditch with gradually changing ditch width. Background technique [0002] Huge energy will be generated during dynamic compaction construction, and part of the energy will be transformed into stress waves, which are mainly realized as seismic waves. Seismic waves will spread from the tamping point to the surroundings, causing the ground to vibrate, which will cause uneven settlement of the surrounding soil, thus causing varying degrees of damage to the surrounding environment of the construction site, residents, buildings, and underground pipelines. Affect the normal life of surrounding residents. [0003] In order to reduce the adverse impact of the vibration generated by dynamic compaction on the surrounding environment and residents, a seismic isolation ditch of a certain depth and a certain width is generally set up between the...

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Problems solved by technology

The conventional practice in engineering is to directly dig trenches and fill them with sand or just dig trenches without filling them. This type of seismic isolation trench has the following disadvantages: First, the depth of the seismic isolation trench remains constant along the length direction, but in fact the strong vibration intensity Weakness is positively correlated with the distance from the seismic source. In fact, the location far from the seismic source does not need to excavate the same trench depth as that close to the seismic source, so the same trench depth will cause unnecessary increase in engineering volume and waste of building materials; the second is The isolation ditch does not have any internal support system. Once the isolation ditch is too deep, the soil on both sides of the isolation ditch may collapse during excavation. If the isolation ditch is not deep enough, effective isolation cannot be achieved. The third is that water is easy to accumulate in the isolation ditch, and the longitudinal wave generated by the vibration can be transmitted through the liquid. The accumulation of water in the ditch will weaken or even lose the vibration isolation effect of the isolation ditch. The groundwater spreads to the surroundings, and the seismic isolation ditch in the prior art cannot isolate this part of the vibration

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