2020 Vol. 34, No. 6

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Technology Development and Exploration
Vertical Bearing Capacity Test of Bridge Pile Foundation and Numerical Simulation Analysis of Pile-soil Interaction
Sun Yuhui, Zhang Hui, Chen Changyan, Liu Guo, Yao Tianbao
2020, 34(6): 311-315. doi: 10.3969/j.issn.1007-2993.2020.06.001
[Abstract](209) [PDF 2191KB](51) [Cited by] (17)
Abstract:
The pile foundation test of a high-speed bridge in Beijing is introduced as an example, including axial force, displacement monitoring design and monitoring data analysis method during test process. The pile side resistance, pile end resistance and pile foundation ultimate load of each layer of soil...
Research on Construction Methods of Deep Mixing Column Based on Remote Monitoring System
Chen Yi, Hu Weidong, Xu Yuan, Ye Guanbao, Shen Honghui
2020, 34(6): 316-320. doi: 10.3969/j.issn.1007-2993.2020.06.002
[Abstract](133) [PDF 2430KB](28) [Cited by] (4)
Abstract:
As a commonly-used ground improvement alternative, deep mixing method can effectively increase the bearing capacity and reduce deformation of soft clays. However, quality control has still been a problem and there has been limit effective measure in practice. An application of remote monitoring syst...
Application of Pit Dividing Technology in Deformation Control of Deep and Soft Clay Saturated Foundation Pit
Yang Yujiang, Shao Yaping
2020, 34(6): 321-324,328. doi: 10.3969/j.issn.1007-2993.2020.06.003
[Abstract](138) [PDF 1575KB](37) [Cited by] (5)
Abstract:
Taking the deep and large foundation pit adjacent to a subway station in Suzhou as an example, the deformation caused by the deep and large foundation pit is controlled by using the principle of time and space effect and the pit dividing technology, and the safety of the close subway station has bee...
Quality Control Index for Contact Clay in Core Wall Dam of Miaowei Hydropower Project
Meng Yongxu, Dong Yufan, Yin Fei, Chen Liang, Wang Yongming
2020, 34(6): 325-328. doi: 10.3969/j.issn.1007-2993.2020.06.004
[Abstract](134) [PDF 825KB](16) [Cited by] (3)
Abstract:
In the hydropower and water conservancy projects, the quality of contact soil is usually judged by the plasticity index and clay content. The plasticity of the soil depends on the type and content of highly hydrophilic clay minerals in the clay particle, which are capable of physicochemical interact...
Design and Practice of Soil Landslide Treatment Project Adjacent to Buildings
Wei Haitao, Sun Lanning
2020, 34(6): 329-333. doi: 10.3969/j.issn.1007-2993.2020.06.005
[Abstract](125) [PDF 3251KB](42) [Cited by] (5)
Abstract:
A landslide project located in Mentougou, Beijing is mainly composed of artificial fill and coarse-grained mixed soil. Due to the excavation of the slope foot and the infiltration of surface water, the crack and deformation of the slope top are continuous expanding obviously, forming a traction land...
Study on Deformation Control of Single Floor Basement Pit near Shallow Foundation Building
Yuan Ziqi, Cui Yunliang
2020, 34(6): 334-338. doi: 10.3969/j.issn.1007-2993.2020.06.006
[Abstract](89) [PDF 3240KB](26) [Cited by] (5)
Abstract:
In order to control the deformation of single floor basement pit near the shallow foundation building in soft ground, a new foundation pit supporting structure and control technology are developed and applied in the project. The passive pile is set in the foundation pit, and the transfer beam is set...
Case Analysis of Design and Construction of Deep Foundation Pit for Hospital Expansion Project in Complex Environment
Fu Ruiyong, Wu Denghui, Ye Shenglin, Zhao Qingliang, Ma Zhen
2020, 34(6): 339-343,361. doi: 10.3969/j.issn.1007-2993.2020.06.007
[Abstract](159) [PDF 2596KB](50) [Cited by] (12)
Abstract:
Taking the construction project of Pediatric Comprehensive Building of Shandong Provincial Hospital as an example, the key technology in the design of deep foundation pit and the key control points in the construction process are discussed. The depth of the foundation pit is 15.7~19.9 m, and the sur...
Deformation Characteristics and Prevention Analysis of a Deep and Thick Fill Slope
Zhang Jian, Zhang Liwei
2020, 34(6): 344-348. doi: 10.3969/j.issn.1007-2993.2020.06.008
[Abstract](104) [PDF 27454KB](49) [Cited by] (6)
Abstract:
A series of tensile cracks and lower fault cracks appeared in the buildings (structures) on the top of the slope in the survey area. Comprehensive survey methods are applied to find out the distribution of the fill, including geological survey, geological process analysis and slope structure analysi...
Comprehensive Investigation on Risk Assessment and Hidden Danger of Ground Collapse in Shanghai
Fu Dong
2020, 34(6): 349-353. doi: 10.3969/j.issn.1007-2993.2020.06.009
[Abstract](176) [PDF 18461KB](26) [Cited by] (5)
Abstract:
Based on the analysis of the risk and vulnerability of the occurrence factors of ground collapse in Shanghai, the risk grade division of ground collapse geological hazards in Shanghai is formed, and the risk distribution of ground collapse in Shanghai is evaluated, which provides the direction for f...
Brief Instroction of Fault Structure and Research on Seismic Parameter Adjustment of Rock and Soil in Shijiazhuang
Sun Lichuan, Yang Qiankun, Zhang Qian
2020, 34(6): 354-361. doi: 10.3969/j.issn.1007-2993.2020.06.010
[Abstract](143) [PDF 13644KB](19) [Cited by] (1)
Abstract:
The characteristics of the main geological structures in the urban area of shijiazhuang were collated and compiled, and the activity of the faults was identified and graded according to the geotechnical engineering standards. According to the characteristics of stratigraphic distribution in Shijiazh...
Invasion Treatment of Retaining Pile in Foundation Pit Based on the Force Transmission and Addition Soil-nailing Method
Chang Qinghai, Zhao Mengmeng
2020, 34(6): 362-364. doi: 10.3969/j.issn.1007-2993.2020.06.011
[Abstract](112) [PDF 844KB](17) [Cited by] (3)
Abstract:
In order to strengthen the reinforcement of retaining piles, the reasons of invasion and the treatment measures of retaining piles are analyzed and summarized by theoretical analysis method, and the force transfer method and the addition soil nail are introduced. The results show that the main reaso...
Experimental Research
Application of Cone Penetration Test for Soil Layers Division
Wang Gang, Jiang Wei, Chen Zongqing, Qin Shuangjie, Nie Liqi
2020, 34(6): 365-371. doi: 10.3969/j.issn.1007-2993.2020.06.012
[Abstract](209) [PDF 3022KB](60) [Cited by] (9)
Abstract:
Soil layers division is a problem widely concerned in geotechnical engineering investigation. Aiming at solving this problem, drilling and standard penetration test (SPT) have been widely applied in engineering field, and abundant experience has been gained. Meanwhile, how to use cone penetration te...

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