直剪试验下不同材料多隔室水泥筒仓的仓壁侧压力换算公式研究

doi:10.19698/j.cnki.1001-6171.20263048

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摘要为明确水泥散料与不同材料多隔室筒仓之间的接触剪切性能，本文系统开展了水泥散料与有机玻璃、PP板及水泥砂浆接触面的直剪试验。试验结果表明，各材料接触面的剪切应力均随剪切位移增加而持续上升，且垂直应力越大，对应的最大剪切应力值也越高。通过拟合摩尔-库伦强度准则，计算出水泥散料的内摩擦角为34.2°，其与有机玻璃、PP板、水泥砂浆接触面的摩擦系数分别为0.51、0.54、0.74。在此基础上，引入材料摩擦系数与几何尺寸参数，推导出有机玻璃-PP板组合材料筒仓与水泥砂浆单一材料筒仓之间的仓壁侧压力换算公式，为不同材料筒仓仓壁侧压力的相互换算提供了有效思路，为多隔室水泥筒仓仓壁侧压力试验的开展及试验结果在实际工程中的推广应用提供了有效的理论支撑。

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	徐增照
	吴灵宇
	李颖
	刘海燕

关键词: 直剪试验多隔室水泥筒仓摩擦系数仓壁侧压力换算公式

Abstract: To clarify the contact shear performance between stored cement and multi-compartment silos made of different materials, this paper systematically conducted direct shear tests on the contact interfaces between cement and Plexiglas, polypropylene (PP) board, and cement mortar. The test results indicate that the shear stress at the contact interface of each material increases continuously with the increase in shear displacement, and a higher vertical stress corresponds to a higher maximum shear stress value. By fitting the Mohr-Coulomb strength criterion, the internal friction angle of cement was calculated to be 34.2°. The friction coefficients of the contact interfaces between cement and Plexiglas, PP board, and cement mortar were determined to be 0.51, 0.54, and 0.74, respectively. On this basis, by introducing the material friction coefficients and geometric dimension parameters, a conversion formula for lateral wall pressure between a combined Plexiglas-PP board mortar silo and a single-material cement mortar silo was derived. This provides an effective approach for the mutual conversion of lateral wall pressure among silos made of different materials, offering robust theoretical support for conducting lateral wall pressure tests on multi-compartment cement silos and for the practical application of test results in engineering projects.

Key words: direct shear test multi-compartment silo friction coefficient lateral pressure on silo walls conversion formula

收稿日期: 2025-09-14 出版日期: 2026-05-25 发布日期: 2026-05-25 整期出版日期: 2026-05-25

ZTFLH:	TQ172.683
	TU502

作者简介: 徐增照（1986—），男，硕士，高级工程师，主要从事水泥厂建筑结构设计。E-mail：xuzengzhao@sinoma-tianjin.cn

引用本文:

徐增照, 吴灵宇, 李颖, 刘海燕. 直剪试验下不同材料多隔室水泥筒仓的仓壁侧压力换算公式研究[J]. 水泥技术, 2026, 1(3): 48-55.
XU Zengzhao, WU Lingyu, LI Ying, LIU Haiyan. Research on Conversion Formulas of Lateral Wall Pressure for Multi-compartment Cement Silos With Different Materials Based on Direct Shear Tests. Cement Technology, 2026, 1(3): 48-55.

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http://www.cemteck.com/CN/10.19698/j.cnki.1001-6171.20263048 或 http://www.cemteck.com/CN/Y2026/V1/I3/48

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