Deep groove excavation construction technology

Abstract

The invention provides a deep groove excavation construction technology. The deep groove excavation construction technology comprises the following steps that a plurality of groove boxes are prepared, the upper portions and the lower portions of the groove boxes are hollow, each groove box comprises a pair of supporting plates parallel to each other, a plurality of supporting rods are fixedly connected between the supporting plates, and the supporting rods are arranged in a linear array at equal intervals in a length direction of the supporting plates; the groove box is used for supporting a groove while the groove is excavated; and the steps are repeated for multiple times until the depth of the groove reaches a preset depth. By the adoption of the technical scheme, the groove box is convenient to install, the inner wall of the groove can be rapidly supported, collapse is prevented, preparation materials of the groove box are easy to obtain, structure is simple, shortening of an auxiliary process time is facilitated, construction period is shortened, and construction efficiency is improved; organic substances in a soil material are isolated from the pipeline material by laying a granular cusgion first and then a backfill material when laying a pipeline, so that the pipeline can be prevented from being corroded by the organic substances in the soil, and service life of the pipeline can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of engineering construction, in particular to a deep trench excavation construction technology. Background technique [0002] At present, the construction process of underground pipelines includes two forms: open excavation and underground excavation. Among them, most of the open excavation is realized by excavating machinery and manual work, and the underground excavation is realized by pipe jacking machines, shield machines and other equipment. Among them, the open cut method has the advantages of simple, fast and efficient construction. It was used as the preferred excavation technology in the early stage of urban underground tunnel engineering development, but its existence has a great impact on the environment, and the excavation is large, and it is affected by the address of the target area. The influence of conditions is constant. When excavating deep trenches, it is necessary to effectively support t...

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Problems solved by technology

Among them, the open cut method has the advantages of simple, fast and efficient construction. It was used as the preferred excavation technology in the early stage of urban underground tunnel engineering development, but its existence has a great impact on the environment, and the excavation is large, and it is affected by the address of the target area. The influence of conditions is constant. When excavating deep trenches, it is necessary to effectively support the soft soil during the excavation process, so as to avoid the collapse of the soft soil. However, the existing support devices have complex structures, and the support devices The installation is time-consuming and laborious, which increases the auxiliary process time of trench excavation construction and affects the efficiency of trench excavation construction

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