袁国泉¹，袁文龙²，朱栋良²
    （1 江苏镇江建科建筑科学研究院有限公司，镇江212004；2 江苏省岩土工程公司镇江分公司，镇江212003）

[摘要] 通过在常州伟业大厦深基坑支护工程中采用密排钻孔灌注桩加锚杆-型钢锁定法，尝试探寻在深基坑支护施工中非常方便的一条途径，拓展了深基坑支护形式的多样性，打破了传统的深基坑内支撑结构形式，为现代高层建筑地下结构施工提供了又一工程实例。
[关键词] 密排钻孔灌注桩；锚杆；基坑；锁定法

Design and application of section steellocking method of the reinforcement and protection in deep foundation pit: close-packed bored piles with anchor bolt
Yuan Guoquan¹,  Yuan Wenlong², Zhu Dongliang²
(1 Zhenjiang Jianke Research Institute of Building Sciences Co.,Ltd.,Zhenjiang 212004,China; 2 Zhenjiang Branch of Jiangsu Geotechnical Engineering Company, Zhenjiang 212003, China)

Abstract: According to the adoption of the section steel locking method, which used close-packed bored piles with anchor bolt in the reinforcement and protection of deep foundation pit in Changzhou Weiye Building, it concentrated on the attempt of seeking a convenient way for the reinforcement and protection in deep foundation pit construction. It not only broaded the variety of its form and breaked the traditional inner structure, but also presented a new project instance for the underground structure construction of modern high-rise buildings.
Keywords: close-packed bored pile; anchor bolt; foundation pit; locking method