2023 Vol. 37, No. 4

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2023, 37(4)
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2023, 37(4): 1-3.
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Technology Development and Exploration
Review of Design and Application of Geotechnical Centrifuge
Wen Jiwei, Chen Haotian, Zeng Xianen, Xiang Tian
2023, 37(4): 379-385. doi: 10.3969/j.issn.1007-2993.2023.04.001
[Abstract](194) [FullText HTML] (193) [PDF 2074KB](54) [Cited by] (4)
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In the civil engineering, geological engineering and other related fields, in order to analyze the prototype conditions of rock and soil mass or structure in the laboratory, the geotechnical centrifuge is often used to carry out scale simulation experimental research. A variety of science and techno...
A Reservoir Protection Engineering Case of Navigation and Power Junction Project
Hou Junwei, Zuo Libing, Xu Wenteng
2023, 37(4): 386-391. doi: 10.3969/j.issn.1007-2993.2023.04.002
[Abstract](104) [FullText HTML] (28) [PDF 5036KB](23)
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The right side of the hub project reservoir area is adjacent to an abandoned coal mine. There are abandoned goafs and coal tunnels within the inundation line of the storage area. After impoundment of navigation power junction, the reservoir water may leak into the goafs through exposed coal tunnels ...
Combined Prediction of Foundation Pit Deformation under the Condition of Data Filtering
Han Guofeng
2023, 37(4): 392-396. doi: 10.3969/j.issn.1007-2993.2023.04.003
[Abstract](97) [FullText HTML] (62) [PDF 606KB](24) [Cited by] (1)
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In order to evaluate the deformation law of foundation pit construction process reasonably, based on the deformation monitoring results, the filtering of deformation data was realized by double tree complex wavelet, and then the sub-combination prediction was realized by GWO RVM model, ARIMA model a...
Calculation Method of Unsaturated Loess Matrix Suction by In-situ Soaking Test
Peng Min, Guo Jianhui, Guo Dongxin, Ma Jianxun, Luo Dong
2023, 37(4): 397-402. doi: 10.3969/j.issn.1007-2993.2023.04.004
[Abstract](117) [FullText HTML] (35) [PDF 1291KB](22) [Cited by] (1)
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When the permeability coefficient of unsaturated soil is calculated by a relatively accurate algorithm considering the suction head value of the soil matrix in the project, it is difficult to accurately measure the suction head value of the matrix, and the measurement results of the laboratory test ...
Method and Application of Determining Ultimate Bearing Capacity of Existing Piles Based on Catastrophe Theory and Specific Energy Comparison Method
Liu Jianfei, Gao Chao, Zhou Yongming
2023, 37(4): 403-407. doi: 10.3969/j.issn.1007-2993.2023.04.005
[Abstract](126) [FullText HTML] (33) [PDF 1060KB](14) [Cited by] (1)
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In order to further excavate the vertical bearing capacity of existing pile, the load displacement curve equation of the test pile was derived by using the principle of the least square method according to the load displacement curve of the test pile and the bearing behavior of the foundation pile, ...
Application of Mindlin Solution in Calculation of Ground Settlement in Composite Stratum Shield Tunnel Construction
Chen Junsheng, Xu Chengkai, Gao Qiang
2023, 37(4): 408-414. doi: 10.3969/j.issn.1007-2993.2023.04.006
[Abstract](192) [FullText HTML] (47) [PDF 1458KB](29) [Cited by] (2)
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In the coastal areas of South China, Southeast China and North China, it is common that the upper part of the tunnel body is a soft soil layer, and the lower part is a hard rock stratum with high strength. The problem of land subsidence caused by shield tunneling has not been studied at present. To ...
Damage Characteristics of Prefabricated Fractured Granite after High Temperature
Wang Fuchun, Huang Shouguo, Huang Cong
2023, 37(4): 415-421. doi: 10.3969/j.issn.1007-2993.2023.04.007
[Abstract](138) [FullText HTML] (48) [PDF 4874KB](22) [Cited by] (2)
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Temperature is one of the important factors affecting the physical and mechanical properties of rock. The study of the influence of high temperature on the evolution of rock mechanical properties and damage mechanism is of great significance in the construction of deep rock mass engineering. Based o...
Highway Tunnel Vertical Filling Type Cave Roof Caving and the Treatment of Catastrophic Impact Factor Analysis
Liu Dingqing, Xie Wo, Jia Yanling
2023, 37(4): 422-427. doi: 10.3969/j.issn.1007-2993.2023.04.008
[Abstract](111) [FullText HTML] (52) [PDF 1583KB](19) [Cited by] (2)
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Based on a highway tunnel in the area in guangxi karst cave roof collapse case, according to the treatment design of karst disaster, the finite element software was used to simulate the treatment effect, and the deformation law of the vertical developed filling cave with tunnel crossing was obtained...
Discussion on Identification of Hidden Ground Fissures in Type Ⅲ Typical Loess Terrace Sites
Wang Xin, Li Xiaogang, Ding Xiaoqiang, Wang Yahui
2023, 37(4): 428-432. doi: 10.3969/j.issn.1007-2993.2023.04.009
[Abstract](132) [FullText HTML] (47) [PDF 3089KB](18)
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Xi'an ground fissures are developed due to excessive exploitation of groundwater and uneven settlement. Among them, the type Ⅲ site belong to the development area of hidden ground fissures. The existence of hidden ground fissures in type Ⅲ site in typical loess stratum was investigated and identifie...
Estimating the Bearing Capacity of Bored Pile Based on the Data of Static Cone Penetration
Liu Dan, Zhou Yufeng
2023, 37(4): 433-437. doi: 10.3969/j.issn.1007-2993.2023.04.010
[Abstract](208) [FullText HTML] (51) [PDF 898KB](43) [Cited by] (3)
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According to the current specifications such as "Technical Specification for Building Pile Foundations" (JGJ 94—2008) and "Specifications of Foundation of Highway Bridges and Culverts" (JTG 3363—2019), the standard values of vertical ultimate bearing capacity of single pile calculated by static cone...
Experimental Research
Experimental Study on Compressive and Tensile Failure Characteristics of Different Rocks
Luo Guitao
2023, 37(4): 438-442. doi: 10.3969/j.issn.1007-2993.2023.04.011
[Abstract](115) [FullText HTML] (66) [PDF 1131KB](32) [Cited by] (1)
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The acoustic emission (AE) monitoring system is used to monitor the Brazilian splitting and uniaxial compression of the marble, granite, limestone, and sandstone in order to investigate the evolution pattern of different rocks during fracture. The results show that the stress changes are non-linear ...
Response Difference of Aeolian Sand and Gravel Soil Low Embankment under Vehicle Loading
Liu Dapeng, Wang Jing, Cheng Qiangqiang, Liu Mengxi
2023, 37(4): 443-448. doi: 10.3969/j.issn.1007-2993.2023.04.012
[Abstract](77) [FullText HTML] (36) [PDF 1188KB](16) [Cited by] (2)
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Aeolian sand and gravel soil are commonly used as subgrade fillers in oasis-desert area of Xinjiang. In order to find out the difference of stress and strain response of low embankment of aeolian sand and gravel soil under vehicle loading, 1:1 full scale models of low embankment were established by ...
Experimental Study on the Stick-slip Phenomenon in Granular Materials and Its Physical Mechanism
Liu Jiansheng, Xiong Wenyong, Deng Xianghao, Fu Li, Tong Lihong
2023, 37(4): 449-454. doi: 10.3969/j.issn.1007-2993.2023.04.013
[Abstract](144) [FullText HTML] (35) [PDF 1551KB](18)
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In order to explore the internal relationship between the macro mechanical response of granular materials in the shear process and their micro parameters, the stick-slip behavior of granular materials under compression and shear was studied through indoor direct shear test. Glass beads were used as ...
Study on Environmental Durability of Solidified Lake-bottom Sediment
Wang Kuangshan, Pang Long, Dai Zhenxin, Zhang Hui, Zhang Xinjun
2023, 37(4): 455-460. doi: 10.3969/j.issn.1007-2993.2023.04.014
[Abstract](180) [FullText HTML] (60) [PDF 3400KB](20) [Cited by] (6)
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In order to evaluate the environmental durability of solidified lake-bottom sediment, alkali activated cementing material of slag system (slag powder, metakaolin, lime and sodium silicate) and traditional cement were used as curing agent. Through unconfined compression, freezing-thawing cycle, Na2SO...
Experimental Study on Dry Shrinkage Cracks of Expansive Soil Modified by Polypropylene Fiber
Huang Furong, Fang Yarong, Tan Mengjuan, Wang Zhuo, Li Jia, Wang Liang, Guo Hong
2023, 37(4): 461-464. doi: 10.3969/j.issn.1007-2993.2023.04.015
[Abstract](101) [FullText HTML] (73) [PDF 724KB](24) [Cited by] (7)
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To explore the inhibition effect of polypropylene fiber on shrinkage cracks of expansive soil, the development, evolution and characteristics of surface cracks of expansive soil samples with and without fibers were qualitatively described and quantitatively analyzed at the same evaporation temperatu...
Research of In-situ Borehole Shear Test of Loess
Huang Xiaowei, Liu Zijun, Yang Zhenrong, Zheng Jianguo
2023, 37(4): 465-469. doi: 10.3969/j.issn.1007-2993.2023.04.016
[Abstract](139) [FullText HTML] (46) [PDF 942KB](23) [Cited by] (1)
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It is very important to accurately obtain the in-situ shear strength parameters of loess for loess engineering. In this study, borehole shear test (BST) was applied to test the shear strength parameters of loess on a loess landslide in Xi'an. The suitable drilling method in loess site was proposed, ...
Direct Shear Behavior of Three-dimensional Geogrids-soil Interface with Different Square Apertures under Various Shear Rates
Xiong Bo, Tong Yanguang, He Jianghui
2023, 37(4): 470-474. doi: 10.3969/j.issn.1007-2993.2023.04.017
[Abstract](94) [FullText HTML] (33) [PDF 1198KB](15) [Cited by] (3)
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For reaching the influence of the aperture of the three-dimensional geogrids with enhanced transverse ribs on the interface behavior, three geogrids with different square apertures were made by 3D printing technology. Effect of the square apertures (25 mm×25 mm, 35 mm×35 mm, 45 mm×45 mm), vertical s...
Deep Foundation Pit Technology
Design and Evaluation of Internal Support and Anchor Support in Complex Environment for Deep Foundation Pit
Ji Xiaopeng, Ji Fanji
2023, 37(4): 475-480. doi: 10.3969/j.issn.1007-2993.2023.04.018
[Abstract](165) [FullText HTML] (73) [PDF 1848KB](48) [Cited by] (3)
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By taking an ultra-deep foundation pit project in the central area of Beijing as an example, according to the different surrounding environment of the foundation pit, the supporting systems of diaphragm wall+ reinforced concrete internal support and diaphragm wall + upper prestressed anchor and lowe...
Influence of Open Dewatering on the Deformation of Deep Foundation Pit in Saturated Soft Loess Area
Zhang Xiaohui, Wang Yonghua, Yang Lina, Bu Chongpeng, Wang Mingjiao
2023, 37(4): 481-485. doi: 10.3969/j.issn.1007-2993.2023.04.019
[Abstract](130) [FullText HTML] (43) [PDF 1476KB](25) [Cited by] (3)
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Saturated soft loess is a special stratum different from collapsible loess and saturated compacted loess. In order to analyze the influence of open dewatering on the deformation of deep foundation pits in strata rich in saturated soft loess, a typical deep foundation pit in Xi'an was selected for an...
Application of Solid Concealed Bracing in Deep and Large Foundation Pit Engineering in Soft Soil
Quan Wei, Zhu Pudong
2023, 37(4): 486-491. doi: 10.3969/j.issn.1007-2993.2023.04.020
[Abstract](115) [FullText HTML] (75) [PDF 4077KB](30)
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Taking a project near Yangtze River and railway in Wuhan as an example, the mixing pile reinforcement was used as concealed bracing for supporting in foundation pit engineering under the conditions of deep and weak stratum, limited surrounding environment and strict deformation control. This support...
Impact Analysis of Foundation Pit Excavation Near the Existing Metro Station Auxiliary Structure
Zhang Xu, Wang Jiejie
2023, 37(4): 492-498. doi: 10.3969/j.issn.1007-2993.2023.04.021
[Abstract](150) [FullText HTML] (40) [PDF 4985KB](51) [Cited by] (7)
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The foundation pit excavation near the existing metro station auxiliary structure is expected to have impact on the metro station auxiliary structure and the safe operation. Taking the construction of the deep foundation pit of a Sunken Plaza in Shijiazhuang as the background, by dividing different ...
Design and Monitoring Analysis of a Deep Foundation Pit in Beijing
Jin Xu, Miao Xiaopeng, Lv Shenglan, Liu Tianyang, Shao Lei
2023, 37(4): 499-504. doi: 10.3969/j.issn.1007-2993.2023.04.022
[Abstract](281) [FullText HTML] (44) [PDF 2002KB](57) [Cited by] (6)
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Based on the geotechnical investigation and monitoring data of Jishuitan Hospital project of deep foundation pit supporting, a three-dimensional excavation model by MIDAS GTS was used to simulate the deformation of adjacent buildings caused by deep excavation during construction. To verify the relia...

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