Retreating to nature: rethinking 'therapeutic landscapes'

There is a long history of removing oneself from 'society' in order to recuperate or repair. This paper considers a yoga and massage retreat in Southern Spain, and what opportunities this retreat experience might offer for recuperation and the creation of healthy bodies. The paper positions 'nature' as an active participant, and as 'enrolled' in the experiences of the retreat as a 'therapeutic landscape', and questions how and what particular aspects of yoga practice (in intimate relation with place) give rise to therapeutic experiences.     

A qualitative study of seismic-ionospheric precursor phenomena monitored by a very close to the epicenter VLF and LF receiver

This work investigates the occurrence of disturbances across a wide range of VLF and LF frequencies received prior to a seismic event (Mw = 4), that took place on May 12th 2012, the epicenter of which was very close (14 km) to the VLF/LF station. The signals analyzed were emitted from five VLF and five LF European transmitters. This seismic event produced precursory ionospheric disturbances, identified as spectral distortion, three days before its occurrence, providing a distinct pattern open to further investigation. Although the basis of the ionosphere interaction with seismic phenomena has been well documented in previous studies, the close proximity of the receiver to the seismic event provides a new perspective to this study. The monitored signals have undergone normalization and then they have been processed by means of the Hilbert-Huang Transform. Diagrams of the signals relevant to the phenomena are presented and the disturbances that are present in the raw data are accentuated through further processing.     

渗流影响下岩石损伤和渐进破裂演化过程的数值试验研究

在FLAC-3D软件平台上,开发出岩石破裂过程的渗流-损伤耦合分析程序,对渗流-损伤耦合作用下岩石的裂纹萌生、扩展过程进行模拟研究。分析了在孔隙水压力作用下,含原生裂隙和弱化单元的非均质试件在单轴、三轴加载下的破坏过程,并与非渗流条件下试件在单轴、三轴压缩下的破坏过程相对比,通过动态显示损伤状态、渗流场,并分析应力应变关系、位移图等,对渗流影响下裂隙岩体的损伤和渐进破裂过程进行了研究。     

热-水-应力-迁移耦合条件下双重孔隙-裂隙介质的抗剪强度及有限元分析

考虑裂隙的连通率、间距、孔隙基质和裂隙材料在表征单元（REV）中的体积分数,并假定双重孔隙-裂隙介质的等效内摩擦角保持常数,而等效黏聚力是固有黏聚力、等效塑性应变、基质吸力、溶质浓度及温度的函数,提出了一种在热-水-应力-迁移耦合条件下确定表征单元内任一平面上等效的黏聚力及内摩擦角的方法。针对一个假定的位于非饱和双重孔隙-裂隙岩体中的高放废物地质处置模型进行了数值模拟及分析。结果表明,基质吸力对于等效黏聚力的增强作用大于等效塑性应变和溶质浓度的减弱作用,使得等效黏聚力得到了提高,故减少了围岩中的塑性区;由此岩体应力、孔（裂）隙水压力及流速、孔（裂）隙溶质浓度的分布及量值也发生相应的改变。     

冻土水热耦合模型数值求解及结果检验

首先对作者所建立的基于多孔介质理论的季节冻土水热迁移耦合模型进行数值求解;对模型方程进行修正, 并给出了模型方程中参数的确定方法。然后以长春松原公路段土体为研究对象, 对实际工程中冻结情况下水分迁移的情况进行预测;给定模型边界条件对模型求解, 将结果与野外实际监测结果进行对比。温度变化对比数据表明, 模型可以较好地预测终值情况, 而中间过程的误差较大, 但是趋势基本一致。水分迁移方向及量的对比数据表明, 模型计算结果要小于实测结果, 但是整体上计算结果与实测结果的变化趋势较一致, 且同样是和最终值吻合较好, 误差最小。结果表明, 模型计算结果可较好地模拟参数最终值, 但存在一定误差。     

新疆北部晚古生代大规模岩浆作用与成矿耦合关系研究主要进展及成果

新疆北部晚古生代地质构造演化复杂,岩浆作用形式多样,造就了大规模的成矿作用。本研究紧紧围绕岩浆铜镍矿床、斑岩型铜(钼)矿床及火山岩型磁铁矿矿床,从含矿岩体的岩浆起源、岩浆演化及成矿特点,系统研究深部相应岩浆活动的地质过程。通过典型矿床的深入剖析,建立相应矿床类型的成矿模式,破解制约找矿突破的控制因素,系统阐述了板块构造与地幔柱体制叠加并存的地质特征与成矿表现。鉴于塔里木地幔柱的活动特点和成矿表现,将其与新疆北部三类主要矿床类型建立关联,对比岩石学、年代学及地球化学特点,发现其成矿类型与塔里木地幔柱及板块构造存有密切关系,可能是两种构造体制叠加并存的结果。塔里木克拉通深部熔融的地幔物质,围绕刚性塔里木克拉通边缘不断上涌,并与表壳物质发生交换,随着俯冲板块的持续和减弱,深部上涌的地幔物质不断加强,先后形成因深部地幔物质多寡而金属聚集的不同矿床类型。     

地震和煤矿采动耦合作用下露天矿边坡及采空区稳定性研究

为了探讨地震和煤矿采动耦合作用下的露天矿边坡及采空区的稳定性,以辽宁排山楼金矿露天转井工开采为研究对象,基于FLAC3D有限元分析平台,采用强度折减法研究了未进行煤炭开采时和煤矿采动单独作用下露天矿边坡的安全系数,重点探讨了煤矿采动和地震耦合作用下露天矿边坡及采空区应力场、位移场及塑性区的分布规律。结果表明:未经采动时,露天矿边坡的安全系数为1.21,边坡处于稳定状态;煤矿采动后露天矿边坡安全系数降为1.12,仍处于稳定状态,单独的煤矿采动作用不会导致露天矿边坡失稳;在地震和煤矿采动耦合作用下,露天矿边坡坡体内出现了较大的拉应力,采空区顶板出现冒落现象,底板出现底鼓现象;在地震和采动耦合作用下,边坡将出现失稳破坏,破坏形式主要为采动区顶板的大面积冒落和边坡的崩塌。     

The nature of post-neoliberalism: Building bio-socialism in the Ecuadorian Amazon

This paper explores the ideology and materiality of ‘bio-socialism’, through which the Ecuadorian government is attempting to catalyse a ‘post-neoliberal’ transition from the ‘finite resources’ of Amazonian oil reserves to the ‘infinite resources’ of biodiversity and scientific knowledge. This experiment is embodied in Ikiam, a public university under construction in the Ecuadorian Amazon. Drawing on extensive field research, we argue that, despite its radical intentions, bio-socialism is functioning as a strategy for the real subsumption of nature to capital, which is being operationalized in Ikiam in ways that reproduce the neoliberal knowledge economy. However, the contradictions of this process imply that, in practice, Ikiam is only intensifying established patterns of the formal subsumption of nature, by commodifying the genetic wealth and indigenous knowledge of the Amazon, and legitimating the expansion of the oil and mineral frontiers. The case of bio-socialism demonstrates the paradoxical nature of actually-existing post-neoliberalism, and illustrates the tendency for utopian ideologies to reproduce the material conditions they are seeking to escape.     

A 2.5-D coupled FE–BE model for the dynamic interaction between saturated soil and longitudinally invariant structures

A two-and-a-half-dimensional (2.5-D) coupled finite element–boundary element (FE–BE) model is presented to simulate the three-dimensional dynamic interaction between saturated soils and structures with longitudinally invariant geometries. A regularized 2.5-D boundary integral equation for saturated porous media is derived that avoids the evaluation of singular traction integrals. The 2.5-D coupled FE–BE model is established by using the continuity conditions on the soil–structure interface. The developed model is verified through comparison with an existing semi-analytical method. Two case studies of a tunnel embedded in a poroelastic half-space and the efficiency of a vibration isolating screen are presented.