注浆技术的发展(Grouting)---第十届北欧注浆研讨会

1 引言

第10届北欧注浆研讨会(10th Nordic Grouting Symposium)将于2023年9月11~13日在瑞典的斯德哥尔摩(Stockholm, Sweden)举行。本次会议由瑞典岩石工程协会(Swedish Rock Engineering Association)和ISRM瑞典国家小组主办。

2 主题

2.1 Concepts and design for grouting

(1) Grouting Strategy

Mine Subsidence Seminar Newcastle CBD Grouting Strategy Project - Stage 1

(2) Theory in relation to practice

(3) Novel methods for grouting execution

(4) Aspects that govern grouting – grouting difficulty

(5) Completion criteria for grouting

(6) Investigations of steering parameters for grouting

(7) Concepts with environmental aspects

2.2 Grouting materials

(1) Grout components

(2) Grout mixing

(3) Grout characteristics

(4) Environmental aspects – greener grouting

2.3 Requirements and verifications

(1) Measuring the grouting result

(2) Observational method

(3) Hydrogeology

(4) Hydraulic tests

(5) Environmental permit

2.4 Grouting equipment

Development of grouting equipment

Possibilities and limitations of current equipment

Health and safety

2.5 Grouting of soil-rock-concrete interfaces

Sealing the zone between soil and rock

Grouting with low rock coverage

Sealing around tunnel portals and plugs

Sealing under artesian circumstances

2.6 Contracts and compensation

Time studies of grouting work

Grouting compensation and adjustment of time

Grouting education – Licence to Grout

Estimation of grout quantities

2.7 Case studies

Execution of grouting and results

3 课程和演讲

(1) Fundamentals of grouting (课程)

(2) Transformation of grouting from black magic to art of engineering

(3) Challenges of Grouting for groundwater control in Hard Rock Tunneling

4 注浆应用

即将举行的另外两个会议【LARMS 2022---岩石力学的挑战: 实现基础设施的可持续发展】; 和【奥地利第71届地质力学学术讨论会(Geomechanics)】把注浆列为讨论的主题，岩石断裂的注浆(Rock Fractures Grouting)在隧道工程中得到了广泛应用， FHWA-NHI-10-034 (2009) 《Technical Manual for Design and Construction of Road Tunnels - Civil Elements》对各种注浆方法进行了总结。当年八达岭隧道建成后，遇到的一个问题是部分路段地下水沿着岩体裂隙涌入隧道内，后来经过岩土工程勘察使用注浆方法封堵了地下水。Hoek(2010)在《Practical Rock Engineering》的第14章"Rockbolts and Cables"以及Hutchinson和Diederichs(1996)的书《Cablebolting in Underground Mines》 讨论了地下采矿锚索的注浆方法。

CH2M Hill (2013) 在《Geotechnical Report for the APE Yard Helical Pile Test Program》中讨论了螺旋桩的注浆方法。Randolph[Challenges of Offshore Geotechnical Engineering]也讨论了桩的注浆方法。[Grouting materials.txt]

Bateman (2021)[Modeling the effectiveness of a grout curtain for construction groundwater control in karst for a lock excavation] 通过数值模拟讨论了注浆对基坑开挖渗流的影响；Najib (2018)[Grouting design for slope stability of kedung uling earthfill dam]讨论了土石方坝基的注浆方法。[grouting design.txt]

Saeidi (2013)[Numerical and analytical analyses of the effects of different joint and grout properties on the rock mass groutability] 使用UDEC的Barton-Bandis模型【岩体不连续的剪切强度 | Barton-Bandis Model；极限平衡分析中Barton-Bandis 模型的输入参数 】预测注浆的流速和渗透到岩体节理内的深度，浆料属性考虑了屈服值、粘度和灌浆压力，节理属性考虑了张开度、粗糙度、间距、迹长和倾角。[methods for grouting.txt]