Saturated sandstone layer engaged water stop pile supporting system and construction method thereof

Abstract

The invention relates to a saturated sandstone layer engaged water stop pile supporting system and a construction method thereof to solve the problems that when a traditional soft engaging technologyis adopted in a saturated sandstone area, the phenomena of hole collapse, pile breaking and the like are likely to be caused, and the construction difficulty is large. By means of the saturated sandstone layer engaged water stop pile supporting system, water stop piles and supporting piles are sequentially alternately arranged to be engaged, the water stop piles are plain concrete piles, the supporting piles are reinforced concrete piles, crown beams are arranged at the upper ends of the water stop piles and the supporting piles, pre-stress anchor cables penetrate in the supporting pillars from the outer sides of the supporting piles and are connected and fixed to rocks and soil bodies of the outer sides of the engaged water stop piles through grouting, and the end heads of the pre-stressanchor cables penetrate holes in waist beams and are fixed through anchor tools. By means of the construction method of the saturated sandstone layer engaged water stop pile supporting system, long-bar-shaped holes are formed in a guide plate through an engaged water stop pile guide plate template, hole sites of the water stop piles and the supporting piles are set based on the long bar wave-shaped holes, the engaged water stop piles are formed after concrete pouring, and the waist beams and the pre-stress anchor cables are arranged on the side walls of the engaged water stop piles.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a saturated sandstone layer occlusal water-stop pile supporting system and a construction method thereof. Background technique [0002] During the construction of construction projects, sometimes the underground structure needs to be constructed in the saturated sandstone layer with deep excavation depth. The saturated sandstone is easily weathered, disintegrated, and collapsed after exposure, endangering the safety of surrounding buildings. The soil quality of most saturated sandstone layers in Northwest China is miscellaneous fill soil layer, silty clay layer, pebble layer, and sandstone layer from top to bottom; There is a large amount of fissure water, which makes the stratum structure complex; there are usually buildings and underground pipelines around the foundation pit, the construction site is narrow, and the excavation depth is deep facing the foundation...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a saturated sandstone layer occlusal water-stop pile support system to solve the problem that the traditional soft occlusal process in the saturated sandstone area is easy to cause collapsed holes and broken piles, which in turn leads to difficult construction.

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