【摘要】 为提升中山市中顺大围干堤东线工程中东河水闸防洪稳定性能,模拟设计加固方案,研究设计参数优化规律。方案中锚固洞最大拉应力随张拉力增大而递减,张拉力每增大200kN,最大拉应力平均降低11.3%,而加固结构中其他特征部位受张拉力大小影响较小。结构最大压应力受张拉力大小影响亦较小,但随垫板厚度增大呈递增关系。肩部最大拉应力随垫板厚度增大呈递减关系,但锚固结构最大拉应力随垫板厚度增大呈递增关系,但增长幅度在后期有所减小,厚度为30～60mm、60～80mm区间时,每增10mm,锚块最大拉应力分别增长6.3%、14.1%。研究成果表明:方案中锚索次锚索张拉力为2200kN、垫板厚度为60mm时最优。更多还原

【Abstract】 The reinforcement scheme is simulated and designed, optimization rules of design parameters are studied in order to improve the flood control stability performance of DongheSluice in Zhongshan Zhongshun Dawei main dike east route. The maximum tensile stress of the anchorage hole is decreased with the increase of the tensile force in the scheme. The maximum tensile stress is decreased by 11.3% on average when the tensile force is increases by 200 kN, while other characteristic parts of the reinforced structure are less affected by the tensile force. The maximum compressive stress of the structure is also slightly affected by the tensile force, but it is increased with the thickness of the backing plate. The maximum tensile stress on the shoulder is decreased with the increase of the thickness of the backing plate. However, the maximum tensile stress of the anchor structure is increased with the increase of the thickness of the backing plate. However, the increase is decreased at the later stage. when the thickness is 30～60 mm and 60～80 mm, The maximum tensile stress of the anchor block is increased by 6.3% and 14.1% respectively for increase every 10 mm. The research results show that the optimal secondary anchor cable tension is 2200 kN, and the backing plate thickness is 60 mm.更多还原