Bulk-Infill Grouting Specifications

Summary of Example Specifications

<h2>Summary of Example Specifications</h2>Both reviewed specifications have been selected for inclusion in this document. These example specifications provide guidance for bulk infill grouting projects but should be tailored for project site conditions and adjusted to include appropriate and relevant details found in the Design Guidance and QC/QA Procedures documents.The specification from Healy and Head (1984) is the more applicable of the two specifications. However, elements of Elias et al. (2001) should be utilized as well. <div class="grayed-title">Specification Name/Number: Bulk Infill Grouting of Old Mines</div>Source(s): Healy and Head (1984)This specification is intended for the bulk infill grouting of abandoned mine workings. It provides detailed information on construction procedures as they relate to drilling and injecting grout. The specification is a guide specification and must be adapted for individual projects.Since the specification is focused specifically on the infilling of mine workings, changes must be made before it can be applied towards other void-filling applications such as the infilling of voids associated with karst terrain. All of the references within the specification refer to British standards, so the references must be changed to reflect standards in the United States such as ASTM and AASHTO standards. <div class="grayed-title">Specification Name/Number: Void Filling Specification</div>Source(s): Elias et al. (2001)This document is a general void-grouting specification. The specification is actually a rock fissure grouting specification but the author states that it can be modified to pertain to void filling applications (i.e., bulk infill grouting). Unlike the Healy and Head (1984) specification, which applies for only subsurface mine workings, this specification applies for any type of subsurface voids (e.g., karst, mines, etc.).The document has positive elements and includes commentary. However, significant modifications should be made for project site conditions and adjusted to include appropriate and relevant details found in the Design Guidance and QC/QA Procedures documents.