CAJ | 학술논문

针对内河顺直河段“挖入式港池”，采用概化非恒定流，模拟了不同规模“挖入式港池”河道的洪水演进过程，探究了港池进深对河道行洪的影响。模拟结果表明：①“港区”对其所在河段进（出）口水流有很小的引流减阻作用（坦化作用），无明显滞洪调蓄作用；②“港区”抬升其出口断面附近的水位，降低其他河段的水位，抬升（降低）作用很小，升高的水位不提升河道设计防洪标准；③“港区”分流比远小于港池进深与矩形河宽的比值，“港区”参与河道行洪作用很小，不是河道泄洪的主要通道。“挖入式港池”对河道行洪不会产生明显不利影响，可通过修建“挖入式港池”增加珠三角网河区港口可用岸线资源量，新建码头或扩大原有码头规模，提升运力。
침대내하순직하단“알입식항지”，채용개화비항정류，모의료불동규모“알입식항지”하도적홍수연진과정，탐구료항지진심대하도행홍적영향。모의결과표명：①“항구”대기소재하단진（출）구수류유흔소적인류감조작용（탄화작용），무명현체홍조축작용；②“항구”태승기출구단면부근적수위，강저기타하단적수위，태승（강저）작용흔소，승고적수위불제승하도설계방홍표준；③“항구”분류비원소우항지진심여구형하관적비치，“항구”삼여하도행홍작용흔소，불시하도설홍적주요통도。“알입식항지”대하도행홍불회산생명현불리영향，가통과수건“알입식항지”증가주삼각망하구항구가용안선자원량，신건마두혹확대원유마두규모，제승운력。
For straight inland excavated-in harbor basin,unsteady flow was generalized to simulate flood routing in different scale excavated-in harbor basin river channels and explored the impact of harbor depth dimension to flood flowing in river. The simulation results show that:a)there is very small action of water drainage and drag reduction(flattening effect)for inflow and outflow in the harbor reach;there is no significant effect of detention storage. b)uplifting the water level of local harbor reaches,lowering the water level of other reaches,the effect of raising or lowering is small,elevated water level is not designed to enhance the river flood control standards. c)the diversion ratio of har-bor area is much smaller than the ratio of the basin depth and rectangular river width,the harbor area has little effect on flood routing and is not the main channel of flood routing. In summary,the excavated-in harbor basin has not adverse effects on flood flowing in river;excavated-in harbor basins can be built to increase shoreline resources available of Pearl River area network port;the new pier or wharf may increase the size of the original lifting capacity.