LNG EXPORT TERMINAL GROUND IMPROVEMENT
ENTACT performed soil improvement at this 1,000-acre site in preparation for the development of a Liquefied Natural Gas (LNG) export terminal. The project site is at an ideal location, situated on a ship channel that connects with the Gulf of Mexico. It features deep-water access, proximity to plentiful gas supplies, and ease of transport for buyers. The scope of work included soil improvement of 411,000 cubic yards of soft saturated clay to depths ranging from 4.0 to 8.5 feet, within
LNG LIQUEFACTION SOIL STABILIZATION
The Client’s project included expanding a liquefied natural gas (LNG) terminal to accommodate three LNG trains, a typical gas pretreatment unit, and a dock. Before construction could begin, the ground needed to be reinforced to support the complete turnkey LNG facility. ENTACT performed mass stabilization of over 2.3 million cubic yards of soft dredged sediment and fill soils. We accomplished in-situ stabilization with 16 excavators working atop timber mats, and the pneumatic delivery of Portland cement via custom-fabricated conveyance boxes.
LNG EXPORT FACILITY SOIL IMPROVEMENT
In preparation for future construction at this liquefied natural gas (LNG) export facility, ENTACT improved the soil in the expansion area to facilitate equipment access and support perimeter storm protection and levee system construction. ENTACT’s scope included soil improvement of approximately 1.7 million cubic yards of soft saturated dredged clay, filled to depths ranging from 3.0 to 6.0 feet within various areas of this site. We utilized Type I-II Portland cement to achieve a shear strength of 1,800 psf for
WET ASH IMPOUNDMENT CLOSURE
ENTACT completed the closure of a 140-acre wet fly ash impoundment containing approximately 13.4 million cubic yards of coal combustion residual (CCR). The project required draining the surface water via pumping and temporary drainage channels in the deposited ash and directing it to an area behind the main dam where a permitted outfall was located. The overall scope of work for the project involved lowering the main dam, removing the saddle dam, and constructing a new spillway for both dams;
INTEGRATED ENERGY COMPANY KEY SUPPLIER PROGRAM
ENTACT regularly performs remedial construction, geotechnical construction, and civil construction activities throughout the U.S. and select international locations for a major integrated energy company. Our 20+ year relationship demonstrates our commitment and partnership to our Client. We work with the Client’s team, assisting with preliminary design evaluations, site engineering, remedy selection, and cost budgeting in the planning phase of its many projects. We perform safe, effective, and cost-sensitive solutions at active and closed refineries, terminals, retail sites, oil field production
FLY ASH IMPOUNDMENT CLOSURE AND DAM MODIFICATION
For this 300-acre wet fly ash impoundment closure, ENTACT conducted a multiyear phased approach for the project. Closure construction started with draining surface water via pumping or digging temporary drainage channels in the deposited ash to direct water to an area immediately behind the main dam. As we managed the surface water, we excavated the exposed fly ash and relocated and/or regraded the surface to meet subgrade elevations across the site. Work progressed from the highest to lowest elevations across