2020 Vol. 34, No. 2

column
  Previous Issue | Next Issue 
Display Method:
Technology Development and Exploration
Design and Analysis of Deep Foundation Supporting Near Existing Building Basement in Soft Soil Area
You Bo
2020, 34(2): 63-69. doi: 10.3969/j.issn.1007-2993.2020.02.001
[Abstract](157) [PDF 2204KB](31)
Abstract:
The mucky silty clay of layer ③ and the mucky clay of layer ④ in Shanghai have the characteristics of high water content,fluid plastic state,high compressibility and low strength,classified to the typical soft soil area. Combined with engineering examples,the design points of the deep foundation pit...
Variation Law of Excavation Depth and Surrounding Rock Displacement of Loess Cavern
Shi Weimin, Wang Peng, Zhao Shangyi
2020, 34(2): 70-75. doi: 10.3969/j.issn.1007-2993.2020.02.002
[Abstract](77) [PDF 1235KB](13)
Abstract:
The elastoplastic finite element analysis of a loess cavern was carried out by two-dimensional, three-dimensional step-by-step excavation and three-dimensional one-shot excavation using PLAXIS 2D/3D finite element analysis software. The variation law in displacement of surrounding rock of cavern und...
Stability Evaluation, Reinforcement Measures and Monitoring Analysis for High Slopes
Liu Haiting, Zhang Xiaohui, Zhu Youlu, Yang Peng, Nie Shouzhi
2020, 34(2): 76-80. doi: 10.3969/j.issn.1007-2993.2020.02.003
[Abstract](97) [PDF 4406KB](34)
Abstract:
Taking a high slope as an example,the causes of local deformation are analyzed according to the basic characteristics of the high slope.The stability was evaluated quantitatively.A comprehensive treatment scheme of brush slope unloading+miniature steel pipe pile+drainage system+greening is finally a...
Analysis and Treatment of a Corrosion on Ground Screw Piles
Zhang Liang, Liu Zhuangzhi
2020, 34(2): 81-85. doi: 10.3969/j.issn.1007-2993.2020.02.004
[Abstract](125) [PDF 13127KB](21)
Abstract:
Screw piles have some advantages of convenient construction,fast progress,less adverse impact on environment,etc,and has been widely used in foundation of the ground photo-voltaic power stations.However,it is apt to damage in corrosive soils and shorten its service life,especially in saline soils.By...
Application of Temporary Support and Permanent Support Composite Design in a Project
Liu Qingqing, Huang Changqian, Li Liangjie, Pan Qihui, Wu Lan
2020, 34(2): 86-91. doi: 10.3969/j.issn.1007-2993.2020.02.005
[Abstract](132) [PDF 2413KB](34)
Abstract:
A composite design of multiple supporting structures is applied in a specific project,including double row piles, soil nailing wall, pile anchor support and small retaining wall on the top of piles. This system could solve the problem of slope support under two working conditions of temporary and pe...
Identification of Water Security Sensitive Area in Urban Based on GIS Analysis
Xiong Fanyi, Wu Xingjie
2020, 34(2): 92-96,101. doi: 10.3969/j.issn.1007-2993.2020.02.006
[Abstract](84) [PDF 19764KB](13)
Abstract:
In recent years, with the development of sponge city construction, the research on urban stormwater management by Chinese scholars has been deepened. However, the problems related to the construction of sponge city are becoming increasingly prominent. The principle problem is that the technology of ...
Anti-floating Problems Caused by Surface Water Infiltration and Countermeasures
Li Jiansheng, Zhang Sa
2020, 34(2): 97-101. doi: 10.3969/j.issn.1007-2993.2020.02.007
[Abstract](89) [PDF 13770KB](31)
Abstract:
As more attention has been paid to urban underground space, anti-floating problems become an important part of geotechnical engineering. Although the anti-floating research for the building service life is relatively thorough, but the probably anti-floating issues caused by construction or hydrogeol...
Monitoring and Analysis of Valley Deformation during Construction of Baihetan Hydropower Station
Zhao Zhenjun, Yu Shengli
2020, 34(2): 102-105. doi: 10.3969/j.issn.1007-2993.2020.02.008
[Abstract](92) [PDF 8462KB](17)
Abstract:
The super-high arch dams in China, such as Xiluodu and Jinping, have exhibited anomalous phenomenon of valley shrinkage during the initial impoundment. However, there is no observation on the deformation of the valley during excavation unloading. The deformation monitoring of the valley are analyzed...
Experimental Research
Settlement Calculation of Runway in Coral Sand Filling Ground Based on Dry Density
Wang Duli, Li Jianguang, Li Xing
2020, 34(2): 106-110. doi: 10.3969/j.issn.1007-2993.2020.02.009
[Abstract](74) [PDF 8474KB](14)
Abstract:
Among the coral sand-filled foundations, only the fine-grained coral sand could be applied to conventional indoor compression tests. It is not reasonable to apply the fine-grained coral sand compression test results to engineering practice. In this study, the pressure-dry density relationship curve ...
Experimental Study on Silica Fume Stabilized Soft Soil from Ningbo
Wang Zeping, Wang Changming, Jiang Nan, Zhang Zaiheng
2020, 34(2): 111-116,121. doi: 10.3969/j.issn.1007-2993.2020.02.010
[Abstract](69) [PDF 9675KB](15)
Abstract:
In order to study the influence of silica fume on the mechanical properties of soft soil, silty clay samples from Yinzhou district, Ningbo were mixed with different amounts of silica fume to test the mechanical properties and structure characteristics. The relation between stress and strain of stabi...
Discussion on Notices of Rock Expansion Test
Liu Jun, Gu Li, Guo Cheng, Zhuo Huiying
2020, 34(2): 117-121. doi: 10.3969/j.issn.1007-2993.2020.02.011
[Abstract](185) [PDF 17289KB](17)
Abstract:
The important points of the expansion test (free expansion rate, expansion force, lateral restraint expansion rate, and collapse resistance) in several kinds of engineering investigations are discussed from the perspective of laboratory tests. The field sampling, standard sample preparation, test op...
Influencing Factors of Geotechnical Test Index
Wu Jing, Xu Qingyang, Xia Ruyue
2020, 34(2): 122-124. doi: 10.3969/j.issn.1007-2993.2020.02.012
[Abstract](183) [PDF 1068KB](34)
Abstract:
Soil is loose deposit produced by the weathering of rocks on the surface of the earth’s crust. Soil in different regions has different physical and mechanical properties. Geotechnical tests is the tests of the physics,mechanics,chemical properties,and minerals of rocks and soils. It has important si...

Copyright © Geotechnical Engineering Technique京ICP备12043220号-2

Address：No.79 Xibianmen Inner Street (Xibianmennei Dajie), Xicheng District, 100053, Beijing, P. R. China（100053）Tel：010-83117072 / 010-83196888Fax：（010）83117582Email：get099@263.net; ytgcjs@vip.163.com

Supported by: Beijing Renhe Information Technology Co. Ltd