首页|基于力法的含砂淤泥质土层冻结壁厚度计算

基于力法的含砂淤泥质土层冻结壁厚度计算

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高含水软弱地层多采用人工冻结法施工,冻结壁厚的设计是关键.通过理论推导及模型简化,提出含砂淤泥质土层冻结壁厚的设计方法.以苏州地铁联络通道为依托,在室内还原现场条件,得到某一温度下人工冻土的物理力学试验参数,并对其进行综合分析,以强度控制法与力法为计算基础,考虑所涉及的相关安全系数,确定含砂淤泥质土层冻结壁厚为2m.
Thickness Calculating of Freezing Wall in Sandy Silty Soil Layer Based on Force Method
Soft stratum with high water content is mostly constructed by the artificial freezing method,so the design of thickness of freezing wall is the key point.By theoretical derivation,model simplification,the method calculation thickness of freezing wall in sandy silty soil layer is put forward.Based on the metro communication channel in Suzhou,the field conditions were restored in laboratory to obtain the parameters for physical and mechanical tests on artificial freezing soil at a certain temperature,then comprehensive analysis were carried out to take strength control method and force method as the calculation basis and to take the relevant safety factors involved into consideration.As a result,it was determined that the thickness of freezing wall in sandy silty soil layer to be 2 m.

weak strata with high water contentartificial freezing methodthickness of freezing wallstrength control methoddisplacement monitoring

王雨、解健康、龙坤、赵雷、陈科旭、孙鹤轩

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中铁十九局集团有限公司,北京 101300

西安科技大学建筑与土木工程学院,西安 710054

高含水软弱地层 人工冻结法 冻结壁厚度 强度控制法 位移监测

2024

路基工程
中铁二局集团有限公司,西南交通大学,中铁二院工程集团有限责任公司

路基工程

影响因子:0.36
ISSN:1003-8825
年,卷(期):2024.(1)
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