塑料排水板弯曲通水量对比试验研究

发布时间：2018-01-03 08:11

本文关键词：塑料排水板弯曲通水量对比试验研究　出处：《长江科学院院报》2017年02期 　论文类型：期刊论文

【摘要】：塑料排水板是排水固结加固地基中水分排出的竖向通道。地基处理过程产生的大幅沉降引起排水板弯曲,需要验证其对通水量的对应减小幅值,及对加固效果的影响。通过固定铁框架模型,人为弯曲排水板以简单模拟排水板在工作中的弯曲变形,分析对比4类具有代表性的塑料排水板(常规分离式、防淤堵分离式、常规整体式、防淤堵整体式)在不同弯曲情况下的通水量。研究结果表明:相同的弯曲形式下,常规整体式排水板的通水性能最佳,其次为防淤堵整体式排水板,再次为防淤堵分离式排水板,常规分离式排水板通水量最低;影响塑料排水板通水量的主要因素为排水板芯板、滤膜及弯折形式。
[Abstract]:Plastic drainage board is the vertical passage of water discharge in the foundation strengthened by drainage consolidation. The large settlement caused by the foundation treatment results in the bending of the drainage plate, which needs to be verified to reduce the corresponding amplitude of the water flux. Through the fixed iron frame model, the artificial bending drainage plate is used to simulate the bending deformation of the drainage board in the work, and four kinds of representative plastic drainage board (conventional separated type) are analyzed and compared. The water flux under different bending conditions is obtained. The results show that the conventional integral drainage board has the best water capacity under the same bending condition. Secondly, it is the integral drainage board of anti-silting, and the separated drainage board of anti-silting again, and the lowest amount of water is passed by the conventional separated drainage board. The main factors affecting the water flow of the plastic drainage board are the core board, the filter membrane and the bending form.
【作者单位】：中交四航工程研究院有限公司;中交交通基础工程环保与安全重点实验室;
【分类号】：TU472.33
【正文快照】： 1研究背景在真空预压法地基处理中,排水板是其中一个重要的部分。作为地基中水分排出的竖向通道,排水板有助于加快地基的固结,使其能更快达到工程所需的性能[1-3]。地基处理过程产生的大幅沉降引起排水板弯曲,从而导致通水量的减小,进而影响加固效果[4-5]。塑料排水板在工程应

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