泗水县城区膨胀土判定及工程地质特性研究

STUDY ON THE DETERMINATION AND ENGINEERING GEOLOGICAL CHARACTERISTICS OF EXPANSIVE SOIL IN THE URBAN AREA OF SISHUI COUNTY

济宁地区广泛分布膨胀性黏土,膨胀土在工程地质勘察中属于特殊性岩土,具有吸水膨胀失水收缩工程特性。从而改变原有土体结构和力学性能,对其上部建筑物造成不同程度破坏。泗水县城区及周边膨胀土较为明显,给当地居民的生活和财产造成不同程度的损失。本文通过泗水县膨胀性粘土矿物成分、物理力学性质等分析,研究膨胀土各项性能指标和膨胀性能及形成原因,对本区工程建筑设计和施工具有指导意义和参考价值。

Expan sive soil is widely distributed in the Jining area,whichis a special soil in engineering geological exploration,and has engineering characteristics such as water absorption,expansion,water loss,and shrinkage.Therefore,it will change the original soil structure and mechanical properties,causing varying degrees of damage to the upper buildings.The expansive soil in the urban area and surrounding areas of Sishui County is relatively obvious,causing varying degrees of damage to the lives and property of local residents.In this article,the mineral composition,physical and mechanical properties of expansive clay in Sishui Countywere analyzed to study the various performance indicators,expansive properties,and formation reasons of expansive soil.The research resultsprovideguiding and references for the design and construction of engineering buildings in this area.