2024 Vol. 38, No. 5

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2024, 38(5): 1-1.
[Abstract](74) [FullText HTML] (38) [PDF 4894KB](12)
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2024, 38(5): 1-3.
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Review and Prospect
Development Progress and Prospects of Foundation Pit and Slope Engineering Under Carbon Peaking and Carbon Neutrality Policy
Li Jianguang, Liu Rongyi, Liu Qingqing, Yan Liming
2024, 38(5): 505-511. doi: 10.3969/j.issn.1007-2993.2024.05.001
[Abstract](222) [FullText HTML] (63) [PDF 491KB](74)
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With the implementation of the carbon peaking and carbon neutrality policy, low-carbon strategies and sustainable development in the field of construction engineering have become particularly important. With the continuous development and application of the Internet of Things, artificial intelligenc...
Technology Development and Innovation
Analysis Conversion Method of Self-balanced Test Pile and Engineering Application
Yang Di, Bai Lu, Sang Runhui, Jiang Jie
2024, 38(5): 512-518. doi: 10.3969/j.issn.1007-2993.2024.05.002
[Abstract](117) [FullText HTML] (47) [PDF 1192KB](24)
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An analytical conversion method for self-balanced test of foundation pile was proposed. The finite difference method was used to establish the control equations for each micro-section of the upper and lower piles, and the internal forces and displacements at each micro-section of the upper and lower...
Stability Analysis of a New Prefabricated Block Gravity Retaining Wall
Lin Zhiguo, Li Wei
2024, 38(5): 519-526. doi: 10.3969/j.issn.1007-2993.2024.05.003
[Abstract](137) [FullText HTML] (49) [PDF 2251KB](27)
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A new type of prefabricated block gravity retaining wall was proposed, which was mainly composed of cast-in-place concrete base, precast block unit, reserved grouting hole, post-insertion steel bar and cast-in-place pressure top beam, etc., and was designed from the aspects of wall precast block, in...
Road Automation Monitoring System Based on Deep Learning: an Application Research
Liu Shiwei, Wang Rong, Zhang Tonghu, Wu Huiguo
2024, 38(5): 527-532. doi: 10.3969/j.issn.1007-2993.2024.05.004
[Abstract](92) [FullText HTML] (38) [PDF 1078KB](16)
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Traditional monitoring methods are inefficient and cannot predict soil deformation in real-time and continuously with accuracy in road construction. A road automation monitoring system integrated with artificial intelligence technology was proposed. The system consists of a real-time Internet of Thi...
Function Assessment Method for Underground Pipe Trench of Ancient Architectural Drainage System in the Forbidden City
Zhao Shuqiang, Cao Pulin, Hu Xinrui, Jia Ziheng
2024, 38(5): 533-538. doi: 10.3969/j.issn.1007-2993.2024.05.005
[Abstract](72) [FullText HTML] (34) [PDF 1193KB](10)
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The underground pipe trench of ancient architectural drainage system is an important component of ancient buildings, and its function degradation is common after a long historical process. Before taking protective measures, it is necessary to conduct a functional assessment of the pipe trench. Takin...
Instability Evolution of Single Fracture with Different Dip Angles on Heterogeneous Rock
Wang Tingjing
2024, 38(5): 539-547. doi: 10.3969/j.issn.1007-2993.2024.05.006
[Abstract](89) [FullText HTML] (44) [PDF 4269KB](16)
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Fractures in rock mass have a significant influence on the mechanical behavior, energy evolution and instability failure of rock. To clarify the rock energy evolution and instability failure mechanism of single fracture with different dip angles, based on the particle flow PFC2D method, a numerical ...
Numerical Analysis on Group Pile Effect of Pressure Grouted Helical Pile Group
Fan Yimin, Zong Zhongling, Huang Yunhan, Zhuang Xiaoxuan
2024, 38(5): 548-553. doi: 10.3969/j.issn.1007-2993.2024.05.007
[Abstract](99) [FullText HTML] (54) [PDF 1584KB](21)
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Helix Stiffened Cement Mixing Pile (HSCMP) is a new type of composite pile, and its group pile effect and bearing capacity variation law is still unclear. Based on the finite element numerical simulation method, the ratio of HSCMP pile spacing to helix diameter (Sg/DH) and the ratio of cement soil s...
Engineering Practice and Application
Shear Strength Index Reduction Method Based on Water Content Change in Design and Calculation of Foundation Supporting in Expansive Soil
Li Lingfeng, Wang Qinyuan, Wang Junyang
2024, 38(5): 554-559. doi: 10.3969/j.issn.1007-2993.2024.05.008
[Abstract](85) [FullText HTML] (39) [PDF 2469KB](22)
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Based on the laboratory test of expansive soil, the quantitative relationship between water content and shear strength index was statistically analyzed. Research shows that the shear strength index gradually decreases with the increase of water content. Compared with the internal friction angle φ, t...
Influence of Double Track Shield Tunnel Overpassing Construction on Existing Subways Based on HSS Model
Li Wenqian, Huang Gaoliang, Zhu Xiaoang, Liu Minghong, Chen Yuchao, Hu Anfeng
2024, 38(5): 560-565. doi: 10.3969/j.issn.1007-2993.2024.05.009
[Abstract](86) [FullText HTML] (48) [PDF 1713KB](11)
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A three-dimensional finite element model was established based on the HSS constitutive model for a newly constructed shield tunnel adjacent to an existing subway project. The correctness of the numerical calculation was verified by comparing it with measured data. On this basis, further analysis was...
Bearing Capacity and Deformation Characteristics of Dense Medium Sand Layer of Weihe First-order Terrace
Wang Fuhui, Xu Zhangjian, Wang Yonggang, Sun Wei, Zhao Zhihai, Yan Jianlong
2024, 38(5): 566-571. doi: 10.3969/j.issn.1007-2993.2024.05.010
[Abstract](148) [FullText HTML] (56) [PDF 1165KB](23)
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Based on a project in the Weihe first-order terrace in Xi'an, the bearing capacity and deformation characteristics of the dense sand layer foundation were studied through field tests and numerical simulations to determine whether natural foundations for high-rise buildings of nearly 100 meters can b...
Field Measurement Study of Hydraulic Gradient in Flood Control Area of Wuhan Area
Quan Wei, Chen Lyu, Xiong Zonghai, Zhu Pudong
2024, 38(5): 572-576. doi: 10.3969/j.issn.1007-2993.2024.05.011
[Abstract](78) [FullText HTML] (31) [PDF 1063KB](13)
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According to “Technical Code for Building Foundation” （DB 42/242—2014）, the recommended slope of confined water head in the flood control area of Wuhan is 0.5%～0.8%, from which the anti-floating water level in the flood control area and the confined water head of foundation pit dewatering can be app...
Cause Analysis and Comprehensive Treatment of Back Mountain Landslide Slope of Bailian Temple in Ningde
Huang Chaoyang
2024, 38(5): 577-583. doi: 10.3969/j.issn.1007-2993.2024.05.012
[Abstract](118) [FullText HTML] (42) [PDF 1789KB](45)
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The back mountain landslide of Bailian Temple in Ningde is a medium-sized traction type soil landslide, which is a typical landslide caused by unreasonable excavation at the foot of the slope and heavy rainfall. According to the survey results, the arc method and finite element method were used to a...
Experimental Research
Numerical Simulation and Laboratory Tests of Unloading Stress Path of Fly Ash Stratum Tunnel Excavation
Li Lin, Xie Jinhong, Yang Shangchuan
2024, 38(5): 584-591. doi: 10.3969/j.issn.1007-2993.2024.05.013
[Abstract](104) [FullText HTML] (56) [PDF 1261KB](13)
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The stress path of soil is closely tied to deformation during dynamic tunnel excavation. A three-dimensional model of tunnel construction was created using the FLAC3D finite difference software. The double-side wall guide pit method was used to simulate the excavation process of a large-section tunn...
Influence of Loading Conditions and Particle Size on Stick-Slip Characteristics of Granular Materials
Ou Fanyi, Fei Jianbo, Ma Weibin, Chen Xiangsheng
2024, 38(5): 592-597. doi: 10.3969/j.issn.1007-2993.2024.05.014
[Abstract](91) [FullText HTML] (45) [PDF 1494KB](14)
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Combining the common bonding slip phenomena in natural faults with the characteristics of granular materials, indoor direct shear tests and discrete element numerical analysis using glass bead particles were conducted. By changing the normal stress, shear rate, and particle size, the influence of lo...
Permeability Characteristics of Improved Granite Residual Soils
Yang Xueqiang, Zhong Huabin, Tao Jiaqi, Zhou Baogui, Cai Chifeng
2024, 38(5): 598-604. doi: 10.3969/j.issn.1007-2993.2024.05.015
[Abstract](79) [FullText HTML] (33) [PDF 1586KB](15)
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In response to the mechanical characteristics of the residual soil of granite in Youxi, Fujian, which is prone to softening and disintegration when encountering water, the external additives mixing method was used to improve its properties by adding additives to reduce its permeability coefficient. ...
Suitability of NB01 Curing Agent to Solidify Construction Waste Soil as Roadbed Filler
Xu Dapeng, Zhu Jianfeng, Wang Zhengqing
2024, 38(5): 605-610. doi: 10.3969/j.issn.1007-2993.2024.05.016
[Abstract](94) [FullText HTML] (40) [PDF 1166KB](15)
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The accumulation of construction waste soil has occupied a large amount of land resources and result in environmental pollution. A new curing agent, NB01, was adopted to solidify typical construction waste soil in Ningbo. Through conducting a series of macro-micro laboratory tests such as unconfined...
Experimental Study on Engineering Characteristics of Fluidized Solidified Soil Containing Collapsible Loess and Gravel
Zhang Xin, Ji Haifeng, Yang Zuoqing, Zhu Yanpeng, Liu Dongrui
2024, 38(5): 611-617. doi: 10.3969/j.issn.1007-2993.2024.05.017
[Abstract](118) [FullText HTML] (48) [PDF 2695KB](15)
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To eliminate the defects of traditional backfilling methods and materials, combined with the characteristics of collapsible loess area, the premixed fluidized solidified soil with collapsible loess and gravel as aggregate was prepared. The influence of different loess-to-gravel (L/G), water-to-solid...
Small Strain Stiffness Property of Structured Loess
Liu Shuguang
2024, 38(5): 618-623. doi: 10.3969/j.issn.1007-2993.2024.05.018
[Abstract](87) [FullText HTML] (32) [PDF 1344KB](14)
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Because of the soil skeleton containing dominant silt as well as interparticle cementation, the natural loess behaves in a structured way. To study the influence of structural properties on the small-strain stiffness of loess, resonant column tests were performed on typical natural and remolded loes...
Mechanical Characteristics of Slight-Expansive Soil in Hefei and its Effect by Saturation Disturbance
Luo Guangcai, Zhou Ziwei, Wang Zhichao, Ha Jizhang, Wu Jiaxin
2024, 38(5): 624-630. doi: 10.3969/j.issn.1007-2993.2024.05.019
[Abstract](96) [FullText HTML] (39) [PDF 2668KB](17)
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To study the influence of water and disturbance on the strength and deformation of weak-expansive soil in the Hefei area, the undisturbed samples and saturated disturbed samples of weak-expansive soil in the deep foundation pit of Huifu Road Station of Hefei Metro Line 7 were subjected to convention...

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