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In-Situ Stress from Hydraulic Fracture Measurements in G Tunnel, Nevada Test Site

C. Smith / W. C. Vollendorf / W. E. Warren

Hydraulic fracture work in G Tunnel, Nevada Test Site, performed to obtain the in-situ stress state is discussed. Field equipment and procedures are described; analysis is developed to relate the hydraulic fracture pressures to the in-situ stress state. Pressure data are analyzed to provide estimates of the stress state at a number of locations in the tunnel complex. A unique feature of the work is the mineback - a mining process in which the rock is cut away to reveal the actual plane of the fracture. Advantages, limitations, and problem areas associated with extracting in-situ stress fields from hydraulic fracture pressure records are discussed in detail. (ERA citation 06:019183)

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In-Situ Stress from Hydraulic Fracture Measurements in G Tunnel, Nevada Test Site

C. Smith / W. C. Vollendorf / W. E. Warren

Hydraulic fracture work in G Tunnel, Nevada Test Site, performed to obtain the in-situ stress state is discussed. Field equipment and procedures are described; analysis is developed to relate the hydraulic fracture pressures to the in-situ stress state. Pressure data are analyzed to provide estimates of the stress state at a number of locations in the tunnel complex. A unique feature of the work is the mineback - a mining process in which the rock is cut away to reveal the actual plane of the fracture. Advantages, limitations, and problem areas associated with extracting in-situ stress fields from hydraulic fracture pressure records are discussed in detail. (ERA citation 06:019183)

In-Situ Stress from Hydraulic Fracture Measurements in G Tunnel, Nevada Test Site

C. Smith / W. C. Vollendorf / W. E. Warren

Hydraulic fracture work in G Tunnel, Nevada Test Site, performed to obtain the in-situ stress state is discussed. Field equipment and procedures are described; analysis is developed to relate the hydraulic fracture pressures to the in-situ stress state. Pressure data are analyzed to provide estimates of the stress state at a number of locations in the tunnel complex. A unique feature of the work is the mineback - a mining process in which the rock is cut away to reveal the actual plane of the fracture. Advantages, limitations, and problem areas associated with extracting in-situ stress fields from hydraulic fracture pressure records are discussed in detail. (ERA citation 06:019183)

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Dokumentinformationen

Titel:

In-Situ Stress from Hydraulic Fracture Measurements in G Tunnel, Nevada Test Site

Beteiligte:

C. Smith (Autor:in) / W. C. Vollendorf (Autor:in) / W. E. Warren (Autor:in)

Erscheinungsdatum:

1981

Format / Umfang:

70 pages

Medientyp:

Report

Format:

Keine Angabe

Sprache:

Englisch

Schlagwörter:

Nuclear Explosions & Devices , Geologic deposits , Nuclear explosions , Tunnels , Boreholes , Containment , Hydraulic fracturing , Mining equipment , Rock mechanics , Stress analysis , Stresses , Underground explosions , ERDA/450200 , ERDA/580100 , NTISDE

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