Nearly all the soil from the 26 miles of tunnels will be reused, including 4.4 million tons of clay being shipped out to a new RSPB reserve in the Thames Estuary. 总长26英里的隧道所挖出的几乎所有土方都会得到再利用,包括440万吨泥土被运送到皇家鸟类保护协会(RSPB)位于泰晤士河口(ThamesEstuary)的新保护区。
Sorption saturation point ( SSP) was the critical moisture content for hygroscopic deformation of RSPB. 吸着饱和点SSP是刨花板吸湿变形的临界含水率。