2022 Vol. 36, No. 3

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2022, 36(3): 1-1.
[Abstract](42) [FullText HTML] (19) [PDF 4499KB](21)
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2022, 36(3): 1-3.
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Technology Development and Exploration
Formation Mechanisms of High Rock-slope Deformation Under Heavy Rainfall
Liu Min, Zhou Kui, Zhang Chao, Yao Chenhui, Huang Lei, Liu Zhenghong
2022, 36(3): 173-178. doi: 10.3969/j.issn.1007-2993.2022.03.001
[Abstract](315) [FullText HTML] (120) [PDF 1590KB](104) [Cited by] (5)
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A series of deformation and failure occurred at different elevations during the excavation process on the right bank slope of a dam site of a hydropower station under construction in Southeast Asia, which were mainly manifested as cracks, partial collapses, and landslides, and the slope was in a cri...
Application of Pipe Pile Combined with Double Semicircular Support System in Foundation Pit Engineering
Xu Guan, Zeng Jie, Cheng Yichong, Wang Jiedong, Wu Caide
2022, 36(3): 179-184. doi: 10.3969/j.issn.1007-2993.2022.03.002
[Abstract](189) [FullText HTML] (64) [PDF 1340KB](44) [Cited by] (4)
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Combined with the foundation pit of a project, the engineering application of prestressed pipe pile was carried out, and the advantages and disadvantages of different supporting systems were compared. The design and construction points, process parameters, structural section and deformation characte...
Application of Data Warehouse and Data Mining on Landslide Prediction
Qin Wentao, Guo Xiaokun, Guo Junfeng, Hao Lu, Hong Biwu
2022, 36(3): 185-189. doi: 10.3969/j.issn.1007-2993.2022.03.003
[Abstract](151) [FullText HTML] (64) [PDF 891KB](25) [Cited by] (1)
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In order to obtain effective prediction from the historical landslide data, the data mining technology based on data warehouse were used. Combined with the existing landslide multi-dimensional data set, taking the landslide disaster distribution in the new urban area of Badong County as the research...
Study on Settlement Calculation Method of Composite Foundation in View of Interaction Between Ground and Foundation
Wang Haoran, Zheng Haoqin, Li Jie
2022, 36(3): 190-195. doi: 10.3969/j.issn.1007-2993.2022.03.004
[Abstract](241) [FullText HTML] (47) [PDF 3622KB](87) [Cited by] (2)
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For the settlement calculation method of the composite foundation based on the assumption of flexible foundation, the calculated value is often larger than the measured value due to the non-uniformity of base reaction distribution under the influence of foundation interaction and the non coincidence...
Research on Construction Technology and Stress of Retaining Structure System with Recoverable Soil Nail Wall
Zhang Qinxi, Zhang Zhenshuang, Zhai Yuxin, Wei Meng, Wang Yu
2022, 36(3): 196-202. doi: 10.3969/j.issn.1007-2993.2022.03.005
[Abstract](220) [FullText HTML] (42) [PDF 1786KB](31) [Cited by] (6)
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Based on the concept of green environmental protection and carbon neutrality, a recyclable soil nail wall supporting structure system was proposed, and the composition and construction process of the supporting structure system were introduced. The new supporting structure system was applied to prac...
Control Effect of Two Types of Retaining Walls Combined with Anti-slide Tie
Ta Guoshan, Liu Changqing, Kang Kai, Zhang Yuxiang
2022, 36(3): 203-207. doi: 10.3969/j.issn.1007-2993.2022.03.006
[Abstract](160) [FullText HTML] (49) [PDF 1891KB](32)
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Based on the landslide control project of a cableway base in Yanqing District of Beijing, the prevention and treatment effects of vertical retaining walls and inclined retaining walls combined with anti-slide tie were analyzed through modeling. The results show that for self-balancing retaining wall...
Stability Analysis of a Landslide in Yalong River
Li Hongying, Pu Shikun, Tan Yuehu
2022, 36(3): 208-213. doi: 10.3969/j.issn.1007-2993.2022.03.007
[Abstract](268) [FullText HTML] (68) [PDF 2214KB](69) [Cited by] (3)
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In order to provide a reliable basis for landslide risk assessment, the stability of a typical landslide body was calculated and analyzed. Two different methods were used, compared and analyzed, including reliability method and strength reduction method. With the help of GEO-SLOPE software and the m...
Research on Application of Accurate Positioning and Detecting Technology for Deep-buried Foundation Piles
Wu Fengshou, Cui Ran
2022, 36(3): 214-218. doi: 10.3969/j.issn.1007-2993.2022.03.008
[Abstract](657) [FullText HTML] (66) [PDF 1147KB](33)
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In order to accurately detect the deep underground foundation piles left over from the urban renewal process, physical characteristics of foundation piles and the characteristics of engineering projects were analyzed. The comprehensive method combining high density electric method and magnetic gradi...
Application of Unloading and Pressure-foot Method in Treatment of Unstable Slope
Li Shigui, Xu Qian
2022, 36(3): 219-223. doi: 10.3969/j.issn.1007-2993.2022.03.009
[Abstract](163) [FullText HTML] (49) [PDF 985KB](48) [Cited by] (2)
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There are many approaches for the treatment of slope, among which the combined treatment method of unloading and pressure-foot is simple, convenient and effective. Reasonable unloading and pressure-foot treatment scheme can not only greatly save project cost and shorten project period, but also achi...
Restoration Process and Measures of a Slope Damaged by Severe Disaster
Wang Wei, Mao Huiyong, Fan Jianpeng, Zhang Jiqiang
2022, 36(3): 224-229. doi: 10.3969/j.issn.1007-2993.2022.03.010
[Abstract](154) [FullText HTML] (39) [PDF 1514KB](37)
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Disaster assessment and supplementary geological survey were carried out, and monitoring data was analyzed in a damaged slope of a power plant in Nepal. Internationally stability analysis software was used for stability calculations. The deformation characteristics and causes were studied comprehens...
Analysis and Countermeasures of Key and Difficult Points in the Investigation of a Super Large Diameter Shield Project
Sun Changqing
2022, 36(3): 230-237. doi: 10.3969/j.issn.1007-2993.2022.03.011
[Abstract](163) [FullText HTML] (59) [PDF 1512KB](39) [Cited by] (3)
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With the continuous development of urban municipal construction to ultra deep underground space, super large diameter tunnel construction technology is gradually adopted. At present, the technology of super large diameter shield tunnel is developing in the direction of large depth, large section and...
Analysis of Ground Settlement Caused by Shield Passing Through the Area of Long-term Precipitation
Wang Yong, Sheng Zhizhan, Gao Sufang, Hu Gaowei
2022, 36(3): 238-242. doi: 10.3969/j.issn.1007-2993.2022.03.012
[Abstract](133) [FullText HTML] (68) [PDF 1691KB](36) [Cited by] (1)
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The main stratum of Chengdu rail transit construction is sandy pebble stratum, which is mixed with a large number of fine particles. Some EPB tunnels need to cross the existing cut and cover stations with long-term precipitation. The vertical displacement of soil mass during construction is signific...
Experimental Research
Effects of Freeze-thaw Cycles on the Strength of Straw Fiber-reinforced Soil
Liu Lu
2022, 36(3): 243-247. doi: 10.3969/j.issn.1007-2993.2022.03.013
[Abstract](122) [FullText HTML] (30) [PDF 1709KB](22) [Cited by] (13)
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Straw fiber-reinforcement is a newly developed soil improvement technology. The variation in soil strength caused by seasonal temperature changes damages the safety and stability of geotechnical engineering projects. To investigate the effects of freeze-thaw cycles on the strength of fiber-reinforce...
Non-in Situ Test Analysis of Reinforcement Construction Near Subway Tunnel
Zhang Cheng
2022, 36(3): 248-251. doi: 10.3969/j.issn.1007-2993.2022.03.014
[Abstract](217) [FullText HTML] (79) [PDF 2259KB](28) [Cited by] (1)
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Triaxial mixing pile was used to reinforce the soil around the subway tunnel of Shanghai Metro Line 2. In order to test the influence of construction method on subway tunnel structure and optimize the design of construction parameters, non-in situ test research was carried out before construction. D...
Experimental Study on Static Characteristics of Calcareous Sand Solidified by Nano-SiO2 Superfine Cement
Jiao Huihui, Chen Hao, He Qingkun, Gao Meng
2022, 36(3): 252-258. doi: 10.3969/j.issn.1007-2993.2022.03.015
[Abstract](104) [FullText HTML] (28) [PDF 2817KB](21) [Cited by] (6)
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To study the incorporation of nano-SiO2 for calcareous sand-super fine cement plus solid static characteristics, nano-SiO2 and ultra-fine cement were used to replace ordinary portland cement to reinforce calcareous sand. Unconfined compressive strength test and triaxial shear test were designed unde...

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