Helms — Penstock Tunnel Plug and Shear Zone Rehabilitation
Sector: Cement • Location: California, United States of America (USA)
Source: Mitchell Construction
Project consisted of critical repairs to rehabilitate the bypass tunnel’s concrete plug and mitigate the impact of leakage into the Helms Pumped Storage Powerhouse Complex. Scope of work included drilling 120 holes (totaling 3,980 lineal feet) and installing high pressure grout using the Grouting Intensity Number (GIN) method; sealing of weep holes and cracks in the Penstock Access Tunnel; drillin
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Participants
Sponsoring Agency | Obfuscated Data |
Company | Obfuscated Data |
Status
Original status | completed |
Taiyo status | Obfuscated Data |
Taiyo last update | 00-00-0000 |
Available timestamps | 00-00-0000 |
Available timestamp type | Obfuscated Data |
Contact
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Phone | 0000000000 |
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Address | Obfuscated Data, Obfuscated data, obfuscated data, Obfuscated data |
Description
Description | Project consisted of critical repairs to rehabilitate the bypass tunnel’s concrete plug and mitigate the impact of leakage into the Helms Pumped Storage Powerhouse Complex. Scope of work included drilling 120 holes (totaling 3,980 lineal feet) and installing high pressure grout using the Grouting Intensity Number (GIN) method; sealing of weep holes and cracks in the Penstock Access Tunnel; drilling and re-grouting of existing grout holes in the concrete tunnel plug; drilling and installing new piezometers and horizontal drain holes; and the chemical grouting of weep holes in the main penstock tunnel. |
Original sub-sector | Obfuscated |
Original Currency | USD |
Original budget | 000000000000000 |
Procurement method | Obfuscated Data |
Budget | 000000000000000 |
Location
Region | Obfuscated |
Country | Obfuscated |
State | Obfuscated Data |
County | Obfuscated |
Location | Obfuscated Data, Obfuscated data, obfuscated data, Obfuscated data |
Source
Source reliability | High |
Data quality score | 100% |
Source | Obfuscated Data |
URL | obfuscated_data,obfuscateddata.com |
More Details
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