盾构施工技术-12

Dr. R. Kögler

Introduction

The technology of Horizontal Directional Drilling (HDD) was invented more than 30 years ago in the United States of America by the “father of HDD”, Mr. Martin Cherrington. Since then HDD has developed successfully around the world and is nowadays an established method for trenchless installation of pipelines under obstacles.

A lot of development has been made since the beginnings in some parts of the technology, e.g. in the fields of survey methods and mud technology, while other aspects nearly have been unchanged since the early days (e.g. drill pipes).

Contents

In this short lecture five positive developments of HDD technology will be highlighted, such as:

∙ Drilling in Rock

∙ Drilling of Very Long Crossings

∙ Drilling in Difficult Soil Conditions

∙ Drilling under Artic Weather Conditions

∙ Drilling under High Speed Railway Tracks

The following aspects will be discussed for the mentioned developments in HDD: Rock Drilling

- Hardness of Rock

- Abrasivness of Rock

- Fissures/Fractures/Karsts in Rock

- Diameter of Borehole

- Cutting Transport in Borehole

- Coating of Pipeline

Very Long Crossings

- Friction on Drillstring

- Flow Resistance in Borehole

- Length of Crossing

Difficult Soil Conditions

- Gravel

- Cobbles

Arctic Weather Conditions

- Infra Structure

- Equipment

- Personnel

- Site Condition

- Mud Cycle

High Speed Railway Crossings

- Pilot Survey

- Settlement during Construction

- Settlement during Operation

All described developments will be discussed on projects in which the author has been involved in the stage of planning and/or execution.

德国海瑞克水平定向钻（HDD ）施工法的最新发展

讲者：德国海瑞克公司定向钻部技术顾问 科格乐博士

翻译：德国海瑞克公司定向钻部销售经理 文发枝先生

简 介

非开挖式水平定向钻（HDD ）施工法于30多年前由一位人称“HDD 之父” 的美国人马丁赤宁顿先生所发明，该技术现已于世界各地广泛流通，一般应用于穿越障碍物下方的非开挖管线工程。

自HDD 发明至今，该技术经已作出多方面的改进及优化，例如在控向测量技术和泥浆应用技术等方面，当然其中也有部份环节从开始一直沿用至今天，例如钻杆等，

内 容

在这次简报会中，讲者将重点介绍其中5项新技术发展，例如：

● 硬岩地层穿越

● 特长距离穿越

● 复杂地层穿越

● 严寒极地穿越

● 高速铁路穿越

下面将列举各有关技术提出分享及讨论

● 硬岩地层穿越

岩石硬度

岩石磨损度

岩石裂缝和断层

孔洞直径

石渣排放

管材外层保护

● 特长距离穿越

钻杆磨擦力

孔洞内泥浆阻力

穿越长度

● 复杂地层穿越

砾石地层

卵石地层

● 严寒极地穿越

基本建设

施工机具

施工人员

泥浆循环

● 高速铁路穿越

导向孔测量

施工前沉降控制

施工中沉降控制

以上介绍的施工实例，全部经由讲者科格乐博士亲自参与方案制定及（或）实际执行施工。