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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

《结构与土木工程前沿（英文）》 2023年 第17卷 第1期   页码 10-24 doi: 10.1007/s11709-022-0904-3

摘要： A numerical framework was proposed for the seismic analysis of underground structures in layered ground under inclined P-SV waves. The free-field responses are first obtained using the stiffness matrix method based on plane-wave assumptions. Then, the domain reduction method was employed to reproduce the wavefield in the numerical model of the soil–structure system. The proposed numerical framework was verified by providing comparisons with analytical solutions for cases involving free-field responses of homogeneous ground, layered ground, and pressure-dependent heterogeneous ground, as well as for an example of a soil–structure interaction simulation. Compared with the viscous and viscous-spring boundary methods adopted in previous studies, the proposed framework exhibits the advantage of incorporating oblique incident waves in a nonlinear heterogeneous ground. Numerical results show that SV-waves are more destructive to underground structures than P-waves, and the responses of underground structures are significantly affected by the incident angles.

关键词： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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A collaborative approach for urban underground space development toward sustainable development goals

Fang-Le PENG, Yong-Kang QIAO, Soheil SABRI, Behnam ATAZADEH, Abbas RAJABIFARD

《结构与土木工程前沿（英文）》 2021年 第15卷 第1期   页码 20-45 doi: 10.1007/s11709-021-0716-x

摘要： The utilization of urban underground space (UUS) offers an effective solution to urban problems but may also negatively affect urban development. Therefore, UUS development needs better concerted guidelines to coordinate various urban systems and the multiple components of the underground world. Sustainable Development Goals (SDGs), which should be viewed as important yardsticks for UUS development, do not explicitly mention urban underground space, although many of them are affected by both the positive and negative consequences of its development. To fill this gap, this review lays the foundations of relevant UUS concepts and uses exemplary cases to reveal that 11 out of 17 SDGs can be linked with UUS uses. These linkages also manifest that land administration, integrated planning, architectural design, and construction technology are critical dimensions for increasing the contributions of UUS to the realization of SDGs. To achieve multi-disciplinary synergies among these four critical dimensions, a collaborative approach framework based on spatial data infrastructure is required. Thus, this work provides academics and practitioners with a holistic view of sustainable UUS development.

关键词： urban underground space     Sustainable Development Goals     spatial data infrastructure     underground land administration     integrated planning    

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Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

《结构与土木工程前沿（英文）》 2022年 第16卷 第8期   页码 1029-1039 doi: 10.1007/s11709-022-0861-x

摘要： Blast-induced vibration produces a very complex signal, and it is very important to work out environmental problems induced by blasting. In this study, blasting vibration signals were measured during underground excavation in carbonaceous shale by using vibration pickup CB-30 and FFT analyzer AD-3523. Then, wavelet analysis on the measured results was carried out to identify frequency bands reflecting changes of blasting vibration parameters such as vibration velocity and energy in different frequency bands. Frequency characteristics are then discussed in view of blast source distance and charge weight per delay. From analysis of results, it can be found that peak velocity and energy of blasting vibration in frequency band of 62.5–125 Hz were larger than ones in other bands, indicating the similarity to characteristics in the distribution band (31–130 Hz) of main vibration frequency. Most frequency bands were affected by blasting source distance, and the frequency band of 0–62.5 Hz reflected the change of charge weight per delay. By presenting a simplified method to predict main vibration frequency, this research may provide significant reference for future blasting engineering.

关键词： wavelet analysis     blast-induced vibration     frequency characteristics     underground excavation    

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Rhizosphere immunity: targeting the underground for sustainable plant health management

Zhong WEI, Ville-Petri FRIMAN, Thomas POMMIER, Stefan GEISEN, Alexandre JOUSSET, Qirong SHEN

《农业科学与工程前沿（英文）》 2020年 第7卷 第3期   页码 317-328 doi: 10.15302/J-FASE-2020346

摘要：

Managing plant health is a great challenge for modern food production and is further complicated by the lack of common ground between the many disciplines involved in disease control. Here we present the concept of rhizosphere immunity, in which plant health is considered as an ecosystem level property emerging from networks of interactions between plants, microbiota and the surrounding soil matrix. These interactions can potentially extend the innate plant immune system to a point where the rhizosphere immunity can fulfil all four core functions of a full immune system: pathogen prevention, recognition, response and homeostasis. We suggest that considering plant health from a meta-organism perspective will help in developing multidisciplinary pathogen management strategies that focus on steering the whole plant-microbe-soil networks instead of individual components. This might be achieved by bringing together the latest discoveries in phytopathology, microbiome research, soil science and agronomy to pave the way toward more sustainable and productive agriculture.

关键词： rhizosphere     soil microbiome     plant immunity     microbial ecology     plant health     soilborne pathogens    

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Development and utilization of underground space for the protection of relics in the Yang Emperor Mausoleum

CHEN Zhilong, ZHANG Ping, LI Juxi

《结构与土木工程前沿（英文）》 2007年 第1卷 第2期   页码 229-233 doi: 10.1007/s11709-007-0028-9

摘要： By analyzing the ten burials that have been unearthed at the Yang Emperor Mausoleum of the Han Dynasty, and China s first wholly underground protection and exhibition hall of relics that is under construction, the article expounds the importance of relic site protection through underground space. In particular, it discusses the preservation of historical and cultural relics, the harmonious relationship between architecture and nature, and the collection and security of cultural relics.

关键词： importance     architecture     preservation     harmonious relationship     construction    

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地下工程风险评估准则分析与研究

姚宣德,王梦恕

《中国工程科学》 2009年 第11卷 第7期   页码 86-91

摘要：

结合地下工程的特点，建设性地提出了地下工程风险评估准则，其成果成功地应用于北京市城市地下道路系统规划设计的研究中。

关键词： 地下工程     风险评估     准则    

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Numerical study on the seismic response of the underground subway station- surrounding soil mass-ground

Guobo WANG, Mingzhi YUAN, Xianfeng MA, Jun WU

《结构与土木工程前沿（英文）》 2017年 第11卷 第4期   页码 424-435 doi: 10.1007/s11709-016-0381-7

摘要： Ground buildings constructed above metro station have increased very quickly due to the limited land resources in urban areas. In this paper, the seismic response of the Underground subway station-Surrounding soil mass-Ground adjacent buildings (USG) system subjected to various seismic loading is studied through numerical analysis. The numerical model is established in terms of the calculation domain, boundary condition, and contact property between soil and structure based on the real project. The reciprocal influence between subway station and ground adjacent building, and their effects on the dynamic characteristics of surrounding soil mass are also investigated. Through the numerical study, it is found that the impact of underground structure on the dynamic characteristics of the surrounding soil mass depends on its own dimension, and the presence of underground structure has certain impact on the seismic response of ground adjacent building. Due to the presence of underground structure and ground adjacent building, the vertical acceleration generated by the USG system cannot be ignored. The outcomes of this study can provide the references for seismic design of structures in the USG system.

关键词： underground subway station     ground adjacent building     seismic response    

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Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

《结构与土木工程前沿（英文）》 2012年 第6卷 第2期   页码 85-100 doi: 10.1007/s11709-012-0159-5

摘要： The ground subsidence on the underground pipe often is caused with the reduction of the effective stress and the loss of suction in the base course and then, soil drainage into the pipe. The final formation of the cavity growth in the ground was observed as the ground subsidence. Authors focused this problem and hence performed model tests with water-inflow and drainage cycle in the model ground. The mechanism of cavity generation in the model ground was observed using an X-ray Computed Tomography (CT) scanner. In those studies, water was supplied into the model grounds from the defected underground pipe model in case of the change of relative density and grain size distribution. As results, it was observed that the loosening area was generated from the defected part with water-inflow and some of the soil particles in the ground were drained into the underground pipe through the defected part. And afterward, the cavity was generated just above the defected part of the model pipe in the ground. Based on this observation, it might be said that the bulk density of soil around the defected pipe played one of key factor to generate the cavity in the ground. Moreover, the dimension of the defected part should be related to the magnification of the ground subsidence, in particular, crack width on a sewerage pipe and particle size would be the quantitative factor to evaluate the magnification of the ground subsidence. ?In this paper, it was concluded that the low relative density of soil would become the critical factor to cause the fatal failure of model ground if the maximum grain size was close to the dimension of crack width of defective part. The fatal collapse of the ground with high relative density more than 80% would be avoided in a few cycles of water inflow and soil drainage.

关键词： relative density     grain property     model test     road subsidence     underground pipe     image processing     X-ray CT    

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Optimization for operating modes based on simulation of seasonal underground thermal energy storage

ZHAO Jun, CHEN Yan, LI Xinguo

《能源前沿（英文）》 2008年 第2卷 第3期   页码 298-301 doi: 10.1007/s11708-008-0053-y

摘要： A simulation was performed, which concerned the feasibility of seasonal underground thermal energy storage (UTES) in Tianjin, China. The investigated system consisted of 8 boreholes. In summer, residual solar thermal energy was emitted into the soil surrounding the borehole heat exchangers through which the stored energy was extracted in winter with a ground coupled heat pump (GCHP) to provide a proper heating temperature. A simulation study was performed to study the influence of system operation modes on thermal recovery based on the experimental data of a GCHP system, local meteorological conditions and soil properties in Tianjin. The results indicate a thermal recovery ratio of less than 67% and different temperature distributions under three modes. Finally, an operation mode was suggested based on both lower loss and better thermal recovery in the UTES.
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Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

《结构与土木工程前沿（英文）》 2023年 第17卷 第2期   页码 191-204 doi: 10.1007/s11709-022-0906-1

摘要： Blasting engineering in complex urban environments is considered to influence the safety and stability of the overlying drainage box culvert structure owing to vibration. Therefore, field blasting and vibration tests were performed on the blasting engineering of the Wuhan Metro Line 8 connected aisle, and the LS-DYNA software was used to analyze the dynamic response characteristics of an underground drainage box culvert during the blasting test. The vibration response evolution law of the buried drainage box culvert under blasting vibration was investigated, and a safe surface control standard for the blast vibration of a drainage box culvert is proposed. The results reveal that the maximum tensile stress of the box culvert structure was 0.33 MPa. The peak particle velocity (PPV) and peak tensile stress (PTS) of the drainage box culvert decreased as the water level in the box culvert increased. Based on the relationship between the tensile stress of the box culvert, PPV of the box culvert, and PPV of the surface, it is proposed that the surface control velocity of the buried drainage box culvert is 1.36 cm/s.

关键词： drainage box culvert     underpass blasting     dynamic response     numerical simulation     safety assessment    

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地下工程新技术的实践

马洪琪

《中国工程科学》 2002年 第4卷 第11期   页码 37-41

摘要：

广蓄电站高压岔管的P. D值达5.8×10４kN·m，未采用常规的钢岔管，在钢筋混凝土岔管设计原则上，主要依靠围岩承担水压力。施工中从控制爆破、混凝土质量、高压灌浆等方面实现设计意图。这种结构安全可靠，投资省，效益好。广蓄斜井引进了一套间断式的斜井滑模，经改进和完善，获得了成功。在天荒坪抽水蓄能电站长斜井施工中，研制了自主知识产权的XHM-7型斜井滑模设备，实现了斜井混凝土衬砌的连续滑升，显示了该设备结构新颖、安全可靠、速度快、造价低的优势。以上两项新技术的成功实践，为我国类似工程的推广和应用提供了有益的经验。

关键词： 水电     地下工程     岔管     斜井     新技术    

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

《结构与土木工程前沿（英文）》 2022年 第16卷 第12期   页码 1515-1529 doi: 10.1007/s11709-022-0887-0

摘要： Based on the domain reduction idea and artificial boundary substructure method, this paper proposes an FK-FEM hybrid approach by integrating the advantages of FK and FEM (i.e., FK can efficiently generate high-frequency three translational motion, while FEM has rich elements types and constitutive models). An advantage of this approach is that it realizes the entire process simulation from point dislocation source to underground structure. Compared with the plane wave field input method, the FK-FEM hybrid approach can reflect the spatial variability of seismic motion and the influence of source and propagation path. This approach can provide an effective solution for seismic analysis of underground structures under scenario of earthquake in regions where strong earthquakes may occur but are not recorded, especially when active faults, crustal, and soil parameters are available. Taking Daikai subway station as an example, the seismic response of the underground structure is simulated after verifying the correctness of the approach and the effects of crustal velocity structure and source parameters on the seismic response of Daikai station are discussed. In this example, the influence of velocity structure on the maximum interlayer displacement angle of underground structure is 96.5% and the change of source parameters can lead to the change of structural failure direction.

关键词： source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

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地下空间利用与城市防灾研究若干新进展与思考

陈志龙,陈家运,郭东军,吴涛

《中国工程科学》 2013年 第15卷 第5期   页码 65-70

摘要：

城市地下空间是城市综合防灾空间的重要与必要组成部分。近年来，随着世界城市化进程和地下空间利用的加速，城市综合防灾面临挑战，利用地下空间的综合防灾特性进行城市综合防灾越来越受到国际学者的关注。本文分析了世界各国利用地下空间进行综合防灾的最新研究进展与典型工程案例，提出了我国利用地下空间进行城市综合防灾的建议，以期为我国城市地下空间开发利用提供借鉴与参考。

关键词： 地下空间     综合防灾     城市可恢复力     关键基础设施    

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基于无人装备的地下金属矿智能开采技术 Review

李建国, 战凯

《工程（英文）》 2018年 第4卷 第3期   页码 381-391 doi: 10.1016/j.eng.2018.05.013

摘要：

以矿产资源安全、高效和绿色开发为背景，介绍我国地下金属矿智能开采技术的现状及发展趋势。对地下金属矿智能开采技术的国内外研究现状进行了分析和总结，介绍了具有自主知识产权的地下无人采矿装备的最新技术进展，包括地下凿岩台车、地下潜孔钻机、地下铲运机、地下矿用汽车和地下装药车等五大装备的智能化及无人控制技术，对实现智能开采的三大基础平台，包括定位和导航平台、信息采集与通讯平台、生产过程调度与控制平台进行了分别介绍。最后利用上述无人装备和平台在凡口铅锌矿地下矿山进行了智能开采的工业试验，重点介绍了地下智能铲运机在通信系统、定位系统和信息采集系统的支持下，如何实现无人驾驶。试验证明智能开采技术切实可行，对促进我国采矿技术向智能化方向发展、增强我国矿业行业的核心竞争能力有巨大的推动作用。

关键词： 地下     自主行驶     通讯     导航     智能控制    

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跨地铁运营隧道的地下空间施工组合技术研究 Article

陈湘生

《工程（英文）》 2018年 第4卷 第1期   页码 103-111 doi: 10.1016/j.eng.2017.08.001

摘要：
既有地铁运营隧道对地下空间的强烈分割效应，导致城市繁华地段的地下空间难以有效充分开发，本文提出了以变形缓冲层、特殊注浆技术、小分仓跳挖及门式框反压技术为核心的一整套针对跨地铁运营隧道的地下空间施工组合技术。这些技术在实际工程中的成功应用，解决了跨地铁运营隧道的地下空间合理利用中的重大技术难题，取得了显著的经济效益和社会效益，具有重要的推广应用前景与价值。

关键词： 地铁运营隧道     地下空间     施工     组合技术    

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标题 作者 时间 类型 操作

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

期刊论文

A collaborative approach for urban underground space development toward sustainable development goals

Fang-Le PENG, Yong-Kang QIAO, Soheil SABRI, Behnam ATAZADEH, Abbas RAJABIFARD

期刊论文

Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

期刊论文

Rhizosphere immunity: targeting the underground for sustainable plant health management

Zhong WEI, Ville-Petri FRIMAN, Thomas POMMIER, Stefan GEISEN, Alexandre JOUSSET, Qirong SHEN

期刊论文

Development and utilization of underground space for the protection of relics in the Yang Emperor Mausoleum

CHEN Zhilong, ZHANG Ping, LI Juxi

期刊论文

地下工程风险评估准则分析与研究

姚宣德,王梦恕

期刊论文

Numerical study on the seismic response of the underground subway station- surrounding soil mass-ground

Guobo WANG, Mingzhi YUAN, Xianfeng MA, Jun WU

期刊论文

Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

期刊论文

Optimization for operating modes based on simulation of seasonal underground thermal energy storage

ZHAO Jun, CHEN Yan, LI Xinguo

期刊论文

Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

期刊论文

地下工程新技术的实践

马洪琪

期刊论文

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

期刊论文

地下空间利用与城市防灾研究若干新进展与思考

陈志龙,陈家运,郭东军,吴涛

期刊论文

基于无人装备的地下金属矿智能开采技术

李建国, 战凯

期刊论文

跨地铁运营隧道的地下空间施工组合技术研究

陈湘生

期刊论文