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常规的竖向排水板真空预压处理新近吹填流泥的压缩量可达30%~40%,呈明显的大变形特征,排水板弯曲变形严重,导致排水板中的真空度沿深度衰减较大,影响最终加固效果。针对吹填流泥的这种工程特性,通过对比试验,研究了水平排水板真空预压法在该类场地的应用。试验结果表明,水平板真空预压取得的沉降变形、孔隙水压力、出水量、含水率、十字板抗剪强度等物理力学指标均好于常规的竖向板真空预压,并分析了水平板真空预压处理吹填流泥的优势。结果表明,水平板真空预压是一种可行的吹填流泥处理方法。
Conventional vertical drainage vacuum pre-press treatment of the recent blow-up of mud compression up to 30% to 40%, showing significant deformation characteristics of the drainage board bending deformation, resulting in the drainage board depth of vacuum attenuation more than Large, the final reinforcement effect. Aiming at the engineering characteristics of the blow-fill mud, the application of the vacuum draining method of the horizontal draining board in this kind of site was studied through comparative tests. The test results show that the physical and mechanical indexes such as settlement deformation, pore water pressure, water discharge, moisture content, cross-shear strength and so on obtained by vacuum preloading are all better than the conventional vertical vacuum preloading, and the horizontal plate Advantages of vacuum preloading in the treatment of blow-fill sludge. The results show that the horizontal plate vacuum preloading is a feasible method for the treatment of blow-fill sludge.