The project, which belongs to National Environment Agency, is an integral part of NEA’s long term plan to meet Singapore’s solid waste management needs. The Waste-to-Energy (WTE) facility within the IWMF will be designed with an incineration capacity of 5,800 tonnes per day (tpd) making it one of the largest in the world. In addition to the treatment of incinerable waste, the IWMF will also process source-segregated food waste, household recyclables collected from the National Recycling Programme (NRP) and dewatered sludge from an adjacent used water treatment plant, the Tuas Water Reclamation Plant (TWRP).
The bored pile project was started in July 2021 and is still ongoing. There are more than 500 nos bored pile in this project. The diameter of bored pile is from 600mm to 2200mm, which max. pile length is around 70m, and max. rock rocketing length is about 12m. 6 boring rigs are involved during the construction.
Below is the detail of bored pile:
The project, which is under management of CHANGI AIRPORT GROUP (SINGAPORE) PTE LTD, is located
in Changi East, an area reclaimed in multiple phases in the 1990s, adjacent to the
south-eastern portion of the existing Airport. The Singapore Straits bounds the site
to the east, Changi Coast Road to the west, Aviation Park Road to the north and Tanah Merah
Coast Road to the south.
The bored pile project was started on 7th January 2021 and is still ongoing which diameter
varies from 800mm to 1800mm, max pile length is over 87m. The construction duration is
estimated about 3 months and one boring rig is used to conduct the work.
Below is the detail of bored pile:
Meizhou Bay 2×1000MW Green Construction Demonstration Project ground improvement and pile foundation project is located in Dongpu Town, Xiuyu District, Putian, Fujian Province. The project mainly included site leveling, dewatering of main building excavation area, excavation and stratified rolling of main building area, pile foundation pit excavation, foundation pit drainage, bored pile construction, pile head production, excavation and backfill of auxiliary and auxiliary structures outside the main building area and construction of vibrating sunken pipe sand pile. The bored pile was formally implemented in April 2014 and completed in May 2015.
The project backfilled 970,000 m3 of sea sand, 4,352 bored piles and 47,970 sand piles were constructed. The bored pile adopts high-durability concrete and self-compacting concrete technology to effectively control concrete durability and concrete density. The integrity of the pile body is effectively guaranteed. The proportion of the first type of pile in this project reaches 97.4%, and there is no third type of pile.
The project won the honor of "Hundred Classic Projects", "2017 International Excellent Project Management Gold Award", "2017 National Quality Award Excellent Project Award", "2018 China Electric Power Quality Project", "2016~2018 Fujian Provincial Key Construction Award" Projects" and "2018-2019 National Quality Engineering Gold Award".
This project mainly constructed 4 LNG full-contained storage tanks with a storage volume of 160,000m3 and related structures and other supporting facilities. The pile foundation adopted post-grouting reinforced concrete bored pile. The construction was started on September 10, 2017 and completed on November 24, 2017. The amount of excavation was about 30,000m3, and the excavation depth was 2m. The volume of graded sand and gravel replacement project was about 30,000m3. The pile diameter was 1.20m, the pile length was 70m, the pile end entered 7 or 8 layers, and the high-cap pile was 1.40-1.70m above the ground. Rotary digging was used to form the holes, and the ground piles adopted integrated pile construction technology.
The number of piles for each LNG storage tank was 360, for a total of 720 piles. 63,000m3 of concrete was poured. For low strain testing, 97.2% of Type I piles and 2.8% of Type II piles. Ultrasonic testing, 100% class I piles. The pile concrete core samples all meet the design strength C40 requirements, and the measured vertical compressive bearing capacity of a single pile is 14,000kN, which meets the design requirements.
