基于固体颗粒速度场的三维地面沉降模拟

南京大学学报(自然科学版) ›› 2015, Vol. 51 ›› Issue (6): 1268–1278.

基于固体颗粒速度场的三维地面沉降模拟

贺小桐1，叶淑君1*，于军2，吴吉春1，龚绪龙2

出版日期:2015-11-14 发布日期:2015-11-14
作者简介:(1.南京大学地球科学与工程学院,南京 210093;2. 国土资源部地裂缝地质灾害重点实验室,江苏省地质调查研究院,南京 210000)
基金资助:
基金项目:国土资源部地裂缝地质灾害重点实验室开放课题(2014003),国土资源部公益项目(201411096),江苏省自然科学基金
(BK2012730),国家自然科学基金项目(41272259)
收稿日期:2015-06-16
*通讯联系人,E-mail:sjye@nju.edu.cn

Three-dimensional land subsidence modeling based on solid particle velocity

He Xiaotong1, Ye Shujun1, Yu Jun2, Wu Jichun1, Gong Xulong2

Online:2015-11-14 Published:2015-11-14
About author:(1. Department of HydrosciencesNanjing UniversityNanjing210093China2. Key Laboratory of Earth Fissures Geological Disaster, Ministry of Land and ResourcesGeological Survey of Jiangsu ProvinceNanjing210000China)

摘要/Abstract

摘要： 本文根据Helm提出的基于固体颗粒速度场的含水层运动理论进行抽水型三维地面沉降建模。通过5个算例对该模型进行了验证并展示了其在不同水文地质条件不同抽水井布置条件下的理论运用。研究表明：基于固体颗粒速度场的三维地面沉降模型可以客观反映抽水引起的含水层的三维运动。基于固体颗粒速度场的三维地面沉降模型，直接将抽水引起的含水层系统中土体的三维运动与地下水水位变化相关联，不涉及复杂的土体本构关系，相较传统的流—固耦合模型或者解耦模型所需确定的参数较少，且无需求解大型的三维位移方程，从而实现以简单的模型快速有效地模拟三维地面沉降的目的。

Abstract: In this paper, three-dimensional (3-D) land subsidence caused by groundwater extraction was simulated by using aquifer movement theory based on solid particle velocity, which was developed by Donald Helm. Two numerical experiments were conducted to verify the 3-D land subsidence models based on solid particle velocity. Three experiment demonstrated the application of models under different hydrogeological conditions and in different spatially arrangement of pumping wells. The result showed the three-dimensional motion caused by ground water pumpage. This model, based on solid particle velocity field, does not involved complex soil constitutive models. There are less parameters to be determined compared to traditional fluid-solid coupled or decoupled model, There are no large-scale three-dimensional displacement equations in this new 3-D land subsidence model, so that three-dimensional simulation of land subsidence can be achieved more efficiently by this kind of simplified model.

贺小桐1，叶淑君1*，于军2，吴吉春1，龚绪龙2. 基于固体颗粒速度场的三维地面沉降模拟[J]. 南京大学学报(自然科学版), 2015, 51(6): 1268–1278.

He Xiaotong1, Ye Shujun1, Yu Jun2, Wu Jichun1, Gong Xulong2. Three-dimensional land subsidence modeling based on solid particle velocity[J]. Journal of Nanjing University(Natural Sciences), 2015, 51(6): 1268–1278.

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