一种针对塔吊微型桩用的塔吊基结构

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By adopting a tower crane foundation structure connected by micropiles and anchor steel bars, the problems of low construction efficiency and high cost of tower crane foundations have been solved, achieving the effects of rapid construction and cost savings.

CN224514265UActive Publication Date: 2026-07-17THE FOURTH CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: THE FOURTH CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date: 2025-08-11
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

Existing tower crane foundation construction methods suffer from low efficiency, high cost, and are limited by site space, making it difficult to meet the requirements for rapid construction progress and on-site schedule.

Method used

The tower crane foundation structure adopts multiple micropiles evenly distributed, including micropiles, foundation reinforcement, anchoring steel bars and tower crane foundation. A stable tower crane foundation is formed by the array arrangement of micropiles and the connection of anchoring steel bars.

Benefits of technology

This enabled rapid tower crane pile foundation construction, improving construction speed and efficiency, meeting on-site schedule requirements, and reducing costs.

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Abstract

本实用新型提供一种针对塔吊微型桩用的塔吊基结构，包括微型桩、基础加强体、锚固钢筋以及塔吊基础；微型桩设置有多个，且多个微型桩呈阵列排布；基础加强体设置于微型桩的顶部，且基础加强体与微型桩浇筑成型；锚固钢筋底部设置于微型桩内，且锚固钢筋顶部贯穿基础加强体并暴露在基础加强体的外部；塔吊基础浇筑在塔吊基础的上部，且锚固钢筋浇筑于塔吊基础的内部。本实用新型采用多根微型灌注桩均匀分布，代替传统的预应力管桩，施工方式灵活，不受其他因素制约，可适用多种情况。另外，可加快施工速度，同时也可节省成本，可实现快速塔吊桩基施工，进行增加塔吊来加快施工进度与施工效率，满足同时作业及现场进度要求。

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Claims

1. A tower foundation structure for a tower mini-pile, characterized by: It includes micropiles (1), foundation reinforcement (2), anchoring steel bars (3), and tower crane foundation (4); Multiple micropiles (1) are provided, and the multiple micropiles (1) are arranged in an array; The foundation reinforcement (2) is disposed on the top of the micropile (1), and the foundation reinforcement (2) and the micropile (1) are cast together. The bottom of the anchoring steel bar (3) is located inside the micro pile (1), and the top of the anchoring steel bar (3) penetrates the foundation reinforcement (2) and is exposed outside the foundation reinforcement (2); The tower crane foundation (4) is cast on the upper part of the tower crane foundation (4), and the anchoring steel bars (3) are cast inside the tower crane foundation (4).

2. A tower foundation structure for a tower mini pile according to claim 1, characterized in that: Nine micropiles (1) are provided, and the nine micropiles (1) are uniformly cast in an array below the ground to be installed.

3. A tower foundation structure for a tower mini pile according to claim 2, characterized in that: The micropile (1) includes longitudinal reinforcement (5), reinforcing hoops (6), and pile foundation concrete (7); The longitudinal ribs (5) are provided in multiple ways, and the multiple longitudinal ribs (5) are arranged in parallel and vertically, and the multiple longitudinal ribs (5) are evenly distributed around the circumference. The reinforcing hoop (6) is spirally arranged, and the reinforcing hoop (6) spirally surrounds the outside of the longitudinal rib (5), and the reinforcing hoop (6) is fixedly connected to the longitudinal rib (5); The pile foundation concrete (7) is poured outside the longitudinal reinforcement (5) and the reinforcing hoop (6).

4. A tower foundation structure for a tower mini pile according to claim 3, characterized in that: The longitudinal reinforcement (5) penetrates the pile foundation concrete (7) and the foundation reinforcement (2) and forms the anchor reinforcement (3).

5. A tower foundation structure for a tower mini pile according to claim 4, characterized in that: The anchoring steel bars (3) are evenly distributed around the circumference, and the anchoring steel bars (3) are bent.

6. A tower foundation structure for a tower mini pile according to claim 3, characterized in that: The diameter of the pile foundation concrete (7) is 300 mm, and the depth of the pile foundation concrete (7) is 12.5 m.

7. A tower foundation structure for a tower mini pile according to claim 1, characterized in that: The dimensions of the basic reinforcement (2) are 800mm*800mm*150mm.

8. A tower foundation structure for a tower mini pile according to claim 1, characterized in that: The bottom dimensions of the tower crane foundation (4) are 5300mm*5300mm.