New development of underreamed anchor——blade-underreamed grouted anchor

CHEN Hao-hua; HUANG Ming; GE Xiu-run

doi:10.16285/j.rsm.2006.10.036

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New development of underreamed anchor——blade-underreamed grouted anchor

更新时间：2026-06-25

- New development of underreamed anchor——blade-underreamed grouted anchor
- Issue 10, Pages: 1819-1822(2006)
- 作者机构：
  
  1. 上海交通大学船舶海洋与建筑工程学院
  2. 上海交通大学船舶海洋与建筑工程学院,上海,200030
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2006.10.036
  CLC： TU476
- Published：2006
- 稿件说明：
移动端阅览
[1]陈浩华,黄铭,葛修润.端头扩大型土锚的新发展——船锚式注浆张开型土锚[J].岩土力学,2006(10):1819-1822.

CHEN Hao-hua, HUANG Ming, GE Xiu-run. New development of underreamed anchor——blade-underreamed grouted anchor[J]. 2006, (10): 1819-1822.
[1]陈浩华,黄铭,葛修润.端头扩大型土锚的新发展——船锚式注浆张开型土锚[J].岩土力学,2006(10):1819-1822. DOI： 10.16285/j.rsm.2006.10.036.

CHEN Hao-hua, HUANG Ming, GE Xiu-run. New development of underreamed anchor——blade-underreamed grouted anchor[J]. 2006, (10): 1819-1822. DOI： 10.16285/j.rsm.2006.10.036.

摘要

作为提高锚固性能的一种有效手段

端头扩大型土锚被广泛应用于实际工程。介绍了端头扩大型锚杆的各种扩孔方法

重点阐述一种新型的船锚式注浆张开型土锚。带有锚抓的新型土锚

不需要专门的扩孔机械

在注浆作用下能连续完成端头扩张与灌浆

具有施工方便、锚固面大、效果好等优点。通过对土锚进行张开试验

证明了在上海等软土地区通过灌浆压力使锚抓张开并形成扩大头是能够实现的。

Abstract

As an efficient way to enhance the anchorage performance

anchorage underreaming is widely used in civil engineering. Several underreaming methods have been introduced. A new type of grouting-open soil anchorage with flukes is also presented. This anchor doesn’t need some specific tools to expand the bottom. Grouting pressure is efficiently utilized to expand the bottom and accomplish the grouting procedure consecutively. It has the advantage of convenient operation and high performance in practical use. Through the expansion experiment

it proves that it’s possible to stretch the flukes and expand the bottom with the use of grouting pressure in soft clay zone such as Shanghai.

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