raft section的意思|示意

Different from general raft foundation, the inner force of ribbed beam is calculated as variable section because of the stump.

与一般的筏板基础有所不同，由于有柱墩，有肋梁墩式筏板基础梁的内力需按变截面梁计算。

Considering the thick backfill and soft foundation soil in the cut-and-cover section of Jiadi tunnel, a pile-raft foundation is accepted in order to avoid negative effect due to excessive settlement.

浃底隧道出口明洞段回填厚度较大而基础土体软弱，因此采用了桩-筏基础的形式以避免过大沉降带来的不利影响。