Field measurement of rock displacement during sinking of a deep rectangular shaft

Whyatt, J. K. (Jeff K.); Beus, Michael J.

Back to Previous Page

- Add this to...
- Twitter
- Facebook
- Google Bookmarks
- LinkedIn

Field measurement of rock displacement during sinking of a deep rectangular shaft

Published Date:

1987

Series:

Report of investigations (United States. Bureau of Mines) ; 9108

Language:

English

[PDF-746.73 KB]

Details:

Personal Author:

Whyatt, J. K. (Jeff K.) ; Beus, Michael J. ;

Corporate Authors:

United States. Bureau of Mines.

Description:

"The Bureau of Mines, under a cooperative agreement with Callahan Mining Corp., measured rock displacement at the 4,750-ft level of the 5,100-ft-deep rectangular, timbered caladay shaft in northern Idaho. Displacements were measured with multiple-position borehole extensometers installed 4 ft above the face and timber extensometers installed with the timber sets. This report presents the displacement data along with preliminary, qualitative observations of rock behavior. The measured displacements showed an instantaneous response to shaft sinking and significant time dependency. The relative magnitudes of displacement measured at the shaft walls were heavily influenced by local geologic structure and distance from the shaft bottom." - NIOSHTIC-2 NIOSHTIC no. 10005852

Subject:

[+]

Document Type:

Report

Place as Subject:

Coeur d'Alene Region, Idaho ; Idaho ;

Collection(s):

National Institute for Occupational Safety and Health

Main Document Checksum:

[+]

Supporting Files:

No Additional Files

No Related Documents.

You May Also Like:

Surveillance for Violent Deaths — National Violent Death Reporting System, 34 States, Four California Counties, the District of Columbia, and Puerto Rico, 2017

Corporate Authors:

Centers for Disease Control and Prevention (U.S.)

Published Date:

12/04/2020

Series:

MMWR. Morbidity and mortality supplementary materials

Description:

MMWR Supplementary Table for Volume 69 no. 44

Public Access
Available on:

December 03, 2020
Associations of Sleep Measures with Retinal Microvascular Diameters among Police Officers

Personal Author:

Ma, Claudia C; Gu, Ja K; Andrew, Michael E; Fekedulegn, Desta; Violanti, John M; Klein, Barbara; Tinney-Zara, Cathy; Charles, Luenda E;

Published Date:

12/01/2020

Source:

Ophthalmic Epidemiol. 27(6):487-497

Description:

PurposeWe examined cross-sectional associations of sleep measures with central retinal artery equivalent (CRAE) and central retinal vein equivalent (CRVE) and investigated whether sex and race/ethnicity modified these associations.MethodsParticipants...

Public Access
Available on:

December 01, 2020
Urinary Metal Mixtures and Longitudinal Changes in Glucose Homeostasis: The Study of Women’s Health Across the Nation (SWAN)

Personal Author:

Wang, Xin; Mukherjee, Bhramar; Karvonen-Gutierrez, Carrie A.; Herman, William H.; Batterman, Stuart; Harlow, Siobán D.; Park, Sung Kyun;

Published Date:

12/01/2020

Source:

Environ Int. 145:106109

Description:

Background:Epidemiologic studies on associations between metals and insulin resistance and β-cell dysfunction have been cross-sectional and focused on individual metals.Objective:We assessed the association of exposure to metal mixtures, based on as...

Public Access
Available on:

December 01, 2021
Association of rice consumption with risk of cancer incidence in the California Teachers Study

Personal Author:

Sanchez, Tiffany R.; Klu, Yaa Asantewaa Kafui; Genkinger, Jeanine M.; Lacey, James V.; Chung, Nadia T.; Navas-Acien, Ana;

Published Date:

12/01/2020

Source:

Cancer Causes Control. 31(12):1129-1140

Description:

Purpose:We evaluated the contribution of rice intake, a source of dietary arsenic, to cancer risk in a population of women with likely low arsenic exposure from drinking water and variable rice intake who participated in the California Teachers Study...

Public Access
Available on:

December 01, 2021
SUPPLEMENTARY TABLE 1. Number, percentage, rate,* and ratio† of reported abortions — selected reporting areas, United States, 2008–2017

Personal Author:

Kortsmit K; Jatlaoui TC; Mandel MG, et al.;

Corporate Authors:

Centers for Disease Control and Prevention (U.S.)

Published Date:

11/27/2020

Source:

MMWR Surveill Summ 2020;69(No. SS-7)

Series:

MMWR. Morbidity and mortality supplementary materials
MMWR Surveillance Summaries

Description:

SUPPLEMENTARY TABLES 1-17, abortion data for 2017

Public Access
Available on:

November 29, 2020