The Mass Rapid Transit Authority of Thailand (MRTA) has pledged to repair the collapsed section of Samsen Road in front of Vajira Hospital within two weeks.
According to the MRTA, the repairs will be carried out in two phases.
The first phase will see sandbags, as well as concrete and sand, poured into the sinkhole to stabilise the foundation of the road. About 50,000 sandbags had been dumped into the sinkhole as of yesterday evening.
The second phase, will see structural repairs carried out on the rail tunnel and station under the collapsed road surface, as well as nearby buildings, including Samsen Police Station.
Engineers said cracks in the foundations of Samsen Police Station have worsened, raising concerns about the building's structural integrity. Experts at the site said the building is now leaning by two millimetres towards the sinkhole as the collapsed road surface damaged the building's foundation pillars.
While authorities have yet to decide whether to demolish the building, they have prohibited anyone from entering the premises.
A preliminary investigation into the incident suggested a broken water pipe, located about three metres below the road surface, was to blame for the collapse. The leaking pipe caused the soil to be waterlogged, allowing it to seep into the gaps between the underground rail tunnel's walls, which ultimately caved, causing the road to collapse.
Vajira Hospital, next to the sinkhole, is carrying out a survey to determine the number of patients who will need to be transferred to other facilities.
