【摘要】 该文通过对出现变形外倾的某滨河浸水挡墙的水文资料、设计资料和监测资料调查以及挡墙实体检测、墙背填料勘查等,经综合分析确定了该挡墙变形外倾的主要原因。一方面,挡墙泄水孔堵塞在挡墙内外形成水位差,进而在挡墙墙背形成静水压力;另一方面,河水倒灌导致挡墙墙背填料饱和,造成抗剪强度降低、主动土压力增大。针对挡墙外倾原因提出增大泄水孔孔径、增加双反滤和对墙背填料局部注浆加固等处理措施,其经验教训可供有关工程技术人员参考。更多还原

【Abstract】 For the deformation of extraversion of a riverside immersion retaining wall, this paper investigates relevant hydrologic data, design material and monitoring data, detects the retaining wall and prospects the wall filler, and finally confirms the main contributing factor of this deformation after comprehensive analysis. On one hand, the blockage of outlet entrance in the retaining wall causes a waterhead between the inside and outside, thus the hydrostatic pressure emerges at the wall back. On the other hand, the river-water flow back leads to the filler saturation at the retaining wall back, resulting in the decrease of shear strength and the increase of the active earth pressure. For the extraversion causes of retaining wall, this paper presents some measurements such as increasing the outlet entrance size, adding a double anti-filtration, offering grouting reinforcement to part of the wall back filler,etc. Relevant experience can be referred by related engineers and technicians.更多还原