Anti-floating anchor rod construction structure and construction method thereof

Abstract

The invention discloses an anti-floating anchor rod construction structure and a construction method thereof. According to the anti-floating anchor rod construction structure, an anchor rod is located in the hole forming center, a plurality of anchor rod steel bars are symmetrically fixed to the periphery of the rod, positioning steel bars are arranged on the outer sides of the anchor rod steel bars in the radial direction of a hole, and the outer ends of the positioning steel bars are positioned and fixed to the peripheral wall of an anchor rod hole; the anchor rod, the anchor rod reinforcing steel bars and the positioning reinforcing steel bars are positioned in the anchor rod hole and are consolidated through cement mortar; and at the top opening of the formed hole, the peripheral surfaces of the anti-floating anchor rod and the anchor rod steel bard are covered with expansion water-stop strips, and the top is covered with a water-resistant plate. The construction method comprises the steps of construction preparation, drilling machine hole forming, anchor rod manufacturing, anchor rod grouting, anchor rod maintenance and detection. The anchor rod is accurate and stable in positioning, and the anti-floating performance of the whole structure is excellent; and by the adoption of the pipe-following drilling mode, the hole collapse phenomenon in the hole forming process and after hole forming can be effectively avoided, the drilling depth can be accurately calculated by reading and measuring the floor elevation before hole forming, the drilled depth can be calculated according to the length of each pipe-following, and the hole forming depth can be accurately controlled to meet the requirement.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to the technical field of underground building construction, and relates to an anti-floating anchor rod construction structure and a construction method thereof. Background technique [0002] With the rapid development of urbanization, people's demand for underground space is becoming more and more urgent. The development and utilization of underground space can greatly improve the space utilization rate of urban land and alleviate the contradiction between urban development and land resource tension. However, during the development of underground space, it is often encountered that the self-weight of the underground structure is often less than the buoyancy of the groundwater. How to ensure the structural safety of the underground space, especially in areas with abundant groundwater reserves, the buoyancy of the groundwater can not be ignored. In general, multi-storey...

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Problems solved by technology

However, during the development of underground space, it is often encountered that the self-weight of the underground structure is often less than the buoyancy of the groundwater. How to ensure the structural safety of the underground space, especially in areas with abundant groundwater reserves, the buoyancy of the groundwater can not be ignored. In general, multi-storey buildings often adopt the foundation form of single foundation and waterproof board, and the anti-floating measures mostly use anti-floating anchor rods, but anti-floating anchor rods are slender components anchored in the soil layer, and construction is difficult in water-rich strata. And in the construction process, there are many common quality problems that affect safety and functionality. Therefore, further research is needed on the anti-floating anchor construction and a safer and more effective anti-floating anchor structure is provided.

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