水利工程中组合回填土体的等效内摩擦角研究  

Research on Equivalent Internal Friction Angle of Composite Backfill Soil in Hydraulic Engineering

作　　者：秦海潮 黄邦庭 李维 崔伟[4] 熊正军 QIN Hai-chao;HUANG Bang-ting;LI Wei;CUI Wei;XIONG Zheng-jun(Shandong Luqiao Group Co.,Ltd.,Ji'nan 250013,China;Qu County Congzhou State Owned Assets Investment and Operation Co.,Ltd.,Quxian 635200,China;Sichuan Communication Surveying&Design Institute Co.,Ltd.,Chengdu 610031,China;School of Civil Engineering,Shandong University,Ji'nan 250061,China;Zhongshen Huada Construction Engineering Management Co.,Ltd.,Dazhou 650500,China)

机构地区：[1]山东省路桥集团有限公司,济南250013 [2]渠县■州国有资产投资经营有限公司,渠县635200 [3]四川省交通勘察设计研究院有限公司,成都610031 [4]山东大学土建与水利学院,济南250061 [5]中申华达建设工程管理有限公司,达州650500

出　　处：《价值工程》2024年第36期117-119,共3页Value Engineering

摘　　要：本文依托于某航运工程,通过大型现场试验监测泥岩、砂卵石、土工材料组合回填料中的土压力,根据现场灌砂法试验获得组合回填料的压实度。根据土压力监测数据获得了不同位置处内摩擦角的变化规律,即砂卵石层中内摩擦角较大,泥岩中的内摩擦角较小,形成了泥岩、砂卵石、土工织物组合作为船闸结构墙后回填料的成套工程应用技术。Based on a certain shipping project,the soil pressure in the combination backfill material of mudstone,sand and gravel,and geotechnical materials is measured through large-scale in-site tests.The compaction degree of the combination backfill material is obtained by using the in-site sand filling method tests.Based on soil pressure monitoring data,the variation pattern of internal friction angle at different positions is obtained,that is,the internal friction angle in the sand and gravel layer is larger,while the internal friction angle in the mudstone is smaller.A complete set of engineering application technology of mudstone,sand and gravel,and geotextile combination as backfill material for ship lock structural walls is proposed in this paper.

关 键 词：泥岩 砂卵石 土工材料 组合回填料 等效内摩擦角 

分 类 号：U655.4[交通运输工程—港口、海岸及近海工程]