Precast slab open trench vibration isolation measure

Abstract

The invention discloses a precast slab open trench vibration isolation measure. The precast slab open trench vibration isolation measure involves ground, an open trench is formed in the ground, a concrete platform is fixedly cast on the inner bottom of the open trench, installing bolts are fixedly installed on two sides in the concrete platform through locating rings separately, and connecting seats are fixedly installed on the outer surfaces of the installing bolts through strip-shaped installing holes. The lower surfaces of the connecting seats are fixedly connected to the upper surface of the concrete platform, precast slabs are fixedly installed on the upper surfaces of the connecting seats, the outer side surfaces of the precast slabs are fixedly connected to the inner side surfaces of the open trench, and the inner surfaces of the precast slabs are fixedly connected with fixed pull rings. According to the precast slab open trench vibration isolation measure, the connecting seatsare fixed by combining the pre-buried installing bolts with the strip-shaped installing holes, the installing positions of the precast slabs can be adjusted, the leakproofness and stability of combination with the open trench are guaranteed, thus, the security and stability of use can be greatly improved, and the vibration isolation effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vibration isolation, in particular to a vibration isolation measure for a prefabricated slab cavity. Background technique [0002] In the previous research on vibration isolation of rail transit, the vibration isolation treatment method for surface vibration problems is mainly to add barriers, and the vibration isolation ditch is a general method for vibration isolation of shallow surface horizontal transmission. When the vibration encounters the barrier during the propagation process, according to the diffraction effect of the wave, a shielding area with a relatively lower ground vibration amplitude will appear behind the vibration isolation ditch, so as to achieve the purpose of reducing vibration in the shielding area. However, the existing space There are still some deficiencies in the use of ditch vibration isolation measures. The traditional ditch vibration isolation mainly depends on the depth of t...

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Problems solved by technology

When the vibration encounters the barrier during the propagation process, according to the diffraction effect of the wave, a shielding area with a relatively lower ground vibration amplitude will appear behind the vibration isolation ditch, so as to achieve the purpose of reducing vibration in the shielding area. However, the existing space There are still some deficiencies in the use of ditch vibration isolation measures. The traditional ditch vibration isolation mainly depends on the depth of the ditch, but in actual construction, it is difficult to ensure the excavation depth, and the vibration isolation effect is not ideal. The vibration isolation effect is average, and auxiliary materials need to be added, but the existing auxiliary materials cannot be installed and adjusted according to the needs, the stability is poor, the use effect is not ideal, and it is also very troublesome during construction, which has caused a great impact on the construction period. relatively large impact

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