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2022 Vol. 52, No. 3
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2022, 52(3): 1-9.
doi: 10.13204/j.gyjzG21083106
Abstract:
In order to explore the effect of horizontal freezing in water-rich fine sand layers, an experimental model tests was conducted. The effects of different salt water temperatures (at -20 ℃, -25 ℃ and -30 ℃) on frozen wall thickness, time of closure fo...
In order to explore the effect of horizontal freezing in water-rich fine sand layers, an experimental model tests was conducted. The effects of different salt water temperatures (at -20 ℃, -25 ℃ and -30 ℃) on frozen wall thickness, time of closure fo...
2022, 52(3): 10-16.
doi: 10.13204/j.gyjzG21063015
Abstract:
In the tunneling process of overlapping shield tunnels, the construction of post tunnelling tunnels may have a certain influence on tunnels constructed first and cause structure deformation of the tunnels, even affect their safety. Therefore, it was ...
In the tunneling process of overlapping shield tunnels, the construction of post tunnelling tunnels may have a certain influence on tunnels constructed first and cause structure deformation of the tunnels, even affect their safety. Therefore, it was ...
2022, 52(3): 17-23.
doi: 10.13204/j.gyjzG21022405
Abstract:
The construction of underground utility tunnels will inevitably be affected by ground fracture activities in urban areas where ground fissures are widely distributed. Based on existing physical model test results of rectangular tunnels, the damage ef...
The construction of underground utility tunnels will inevitably be affected by ground fracture activities in urban areas where ground fissures are widely distributed. Based on existing physical model test results of rectangular tunnels, the damage ef...
2022, 52(3): 24-28.
doi: 10.13204/j.gyjzG21062306
Abstract:
According to the influence of the lifting for immersed tubes, the roughness for bottom plates of immersed tubes and different injection sequences on the final expansion radius and gap filling of sand-deposite in the process of foundation treatment fo...
According to the influence of the lifting for immersed tubes, the roughness for bottom plates of immersed tubes and different injection sequences on the final expansion radius and gap filling of sand-deposite in the process of foundation treatment fo...
Effects of Jointed Rock Masses on Stability of Shield Tunnels Under Tunnelling and Ground Loss Rates
2022, 52(3): 29-37.
doi: 10.13204/j.gyjzG21052114
Abstract:
To explore the influence of joint rock masses on the stability of tunnels under tunnelling and the ground loss rates, taking the tunnel in Nanchang as a research object, the numerical model was constructed by the discrete element software UDEC. The i...
To explore the influence of joint rock masses on the stability of tunnels under tunnelling and the ground loss rates, taking the tunnel in Nanchang as a research object, the numerical model was constructed by the discrete element software UDEC. The i...
2022, 52(3): 38-43.
doi: 10.13204/j.gyjzG21090708
Abstract:
The gravity and the time-varying viscosity of slurry have a significant impact on the effective diffusion range and diffusion form of slurry, and the diffusion range of slurry plays a decisive role in the safety of tunnels. Based on the fluid-solid c...
The gravity and the time-varying viscosity of slurry have a significant impact on the effective diffusion range and diffusion form of slurry, and the diffusion range of slurry plays a decisive role in the safety of tunnels. Based on the fluid-solid c...
2022, 52(3): 44-52,37.
doi: 10.13204/j.gyjzG21111717
Abstract:
The void phenomenon behind the tunnel lining has become the main cause of tunnel diseases, which easily triggers the damage of tunnel lining structure, shedding, water seepage and other diseases, and seriously threatened the normal operation of tunne...
The void phenomenon behind the tunnel lining has become the main cause of tunnel diseases, which easily triggers the damage of tunnel lining structure, shedding, water seepage and other diseases, and seriously threatened the normal operation of tunne...
2022, 52(3): 53-59,104.
doi: 10.13204/j.gyjzG20122322
Abstract:
To improve the safety of tunnel construction, the calculation methods for tunnel deformation caused by calculation methods deep aucavation construction were discussed. The influencing factors of heave deformation on tunnels were analyzed, and the for...
To improve the safety of tunnel construction, the calculation methods for tunnel deformation caused by calculation methods deep aucavation construction were discussed. The influencing factors of heave deformation on tunnels were analyzed, and the for...
2022, 52(3): 60-66,84.
doi: 10.13204/j.gyjzG21081712
Abstract:
The stability of underground structures and the deformation control of surrounding environments are key and difficult subjects in shallow tunnels crossing below important infrastructures,and the pipe-shed method is an important technical measure, whi...
The stability of underground structures and the deformation control of surrounding environments are key and difficult subjects in shallow tunnels crossing below important infrastructures,and the pipe-shed method is an important technical measure, whi...
2022, 52(3): 67-70,76.
doi: 10.13204/j.gyjzG21060907
Abstract:
Taking power tunnels as research objects, the field measurement was conducted to study and analyze the force characteristics of jacked pipes under construction of a large-diameter, long-distance and spatially C-shaped curve. The results showed that: ...
Taking power tunnels as research objects, the field measurement was conducted to study and analyze the force characteristics of jacked pipes under construction of a large-diameter, long-distance and spatially C-shaped curve. The results showed that: ...
2022, 52(3): 71-76.
doi: 10.13204/j.gyjzG21043001
Abstract:
At the urban level, the aggregation degree of travels in the streets can reflect the significance of different street segments on urban public life. There are limitations in the previous quantification research on street network. Based on the improve...
At the urban level, the aggregation degree of travels in the streets can reflect the significance of different street segments on urban public life. There are limitations in the previous quantification research on street network. Based on the improve...
2022, 52(3): 77-84.
doi: 10.13204/j.gyjzG20112503
Abstract:
In the post-industrial era, cultural and creative industries are growing rapidly. With its unique landscape, many old industrial districts have transformed into ideal spaces for the development of cultural and creative industries. Taking the cultural...
In the post-industrial era, cultural and creative industries are growing rapidly. With its unique landscape, many old industrial districts have transformed into ideal spaces for the development of cultural and creative industries. Taking the cultural...
2022, 52(3): 85-91.
doi: 10.13204/j.gyjzG22010416
Abstract:
Learning the status quo of thermal environment comfort is necessary for the renewal and retrofit of traditional buildings. At present, physical environment measurement and subjective survey are the basic methods of thermal environment evaluation, but...
Learning the status quo of thermal environment comfort is necessary for the renewal and retrofit of traditional buildings. At present, physical environment measurement and subjective survey are the basic methods of thermal environment evaluation, but...
2022, 52(3): 92-97,157.
doi: 10.13204/j.gyjzG20090801
Abstract:
Industrial buildings often generate a lot of waste heat and noxious gases in the operation process. Good ventilation can dissipate the outdoor pollutants in the industrial building clusters and thereby improve the working environment and adjust local...
Industrial buildings often generate a lot of waste heat and noxious gases in the operation process. Good ventilation can dissipate the outdoor pollutants in the industrial building clusters and thereby improve the working environment and adjust local...
2022, 52(3): 98-104.
doi: 10.13204/j.gyjzG21061603
Abstract:
In order to demand the design method of efficient use of small-area residential space, based on the key techniques of "people-oriented", "simple and easy" and "space adaptability" of the residential building system and the multi-dimensional utilizati...
In order to demand the design method of efficient use of small-area residential space, based on the key techniques of "people-oriented", "simple and easy" and "space adaptability" of the residential building system and the multi-dimensional utilizati...
2022, 52(3): 105-111.
doi: 10.13204/j.gyjzG21020311
Abstract:
Based on the existing prefabricated concrete frame structure, the paper proposed a new type of prefabricated asymmetric hybrid connection joint (PPEFF joint). The longitudinal reinforcement of the beam of this joint was arranged asymmetrically, and o...
Based on the existing prefabricated concrete frame structure, the paper proposed a new type of prefabricated asymmetric hybrid connection joint (PPEFF joint). The longitudinal reinforcement of the beam of this joint was arranged asymmetrically, and o...
2022, 52(3): 112-116,207.
doi: 10.13204/j.gyjzG21052901
Abstract:
To investigated the distortion effect and the influence of diaphragms in the span on the distortion of the simply supported thin-walled box girder. Based on the improved distortion analysis theory of box girder, the distortion control differential eq...
To investigated the distortion effect and the influence of diaphragms in the span on the distortion of the simply supported thin-walled box girder. Based on the improved distortion analysis theory of box girder, the distortion control differential eq...
2022, 52(3): 117-122.
doi: 10.13204/j.gyjzG21062921
Abstract:
The construction period of super high-rise building is long. In the whole construction process when the overall stiffness of the structure has not been formed, the safety of the structure under various construction loads, environmental wind and earth...
The construction period of super high-rise building is long. In the whole construction process when the overall stiffness of the structure has not been formed, the safety of the structure under various construction loads, environmental wind and earth...
2022, 52(3): 123-131.
doi: 10.13204/j.gyjzG20072410
Abstract:
In order to explore the vibration dynamic performance of the gymnasium floor structure under complex excitation, a dynamic signal acquisition and analysis was used system to experimentally determine the speed response and energy distribution change r...
In order to explore the vibration dynamic performance of the gymnasium floor structure under complex excitation, a dynamic signal acquisition and analysis was used system to experimentally determine the speed response and energy distribution change r...
2022, 52(3): 132-140.
doi: 10.13204/j.gyjzG21082001
Abstract:
In order to study the static behavior of CHS-to-SHS gap N-joins and its relations with the behavior of overlap joints, two CHS-to-SHS gap N-joints and two corresponding overlap joints were tested. The test revealed that the bearing capacity of the ga...
In order to study the static behavior of CHS-to-SHS gap N-joins and its relations with the behavior of overlap joints, two CHS-to-SHS gap N-joints and two corresponding overlap joints were tested. The test revealed that the bearing capacity of the ga...
2022, 52(3): 141-145.
doi: 10.13204/j.gyjzG20103102
Abstract:
The steel spherical hinged support is in complex stress states subjected to various load combinations. In order to assess its mechanical properties and the influence on integral structural safety, taking the large support of T2 of Guangzhou Baiyun In...
The steel spherical hinged support is in complex stress states subjected to various load combinations. In order to assess its mechanical properties and the influence on integral structural safety, taking the large support of T2 of Guangzhou Baiyun In...
2022, 52(3): 146-149,190.
doi: 10.13204/j.gyjzG20041009
Abstract:
Taking a SJ2-18 deviation angle tower with 220 kV voltage level designed by a design company in Anhui as an example, the research on full-scale test of the tower was carried out to verify the safety of weather-resistant cold-formed steel applied to d...
Taking a SJ2-18 deviation angle tower with 220 kV voltage level designed by a design company in Anhui as an example, the research on full-scale test of the tower was carried out to verify the safety of weather-resistant cold-formed steel applied to d...
2022, 52(3): 150-157.
doi: 10.13204/j.gyjzG21081911
Abstract:
In order to study the asynchronous lifting performance of the attached lifting scaffold, the all-steel integrated attached lifting scaffold was used as the test frame to measure the stress changes of the main stressed components during the lifting pr...
In order to study the asynchronous lifting performance of the attached lifting scaffold, the all-steel integrated attached lifting scaffold was used as the test frame to measure the stress changes of the main stressed components during the lifting pr...
2022, 52(3): 158-163,131.
doi: 10.13204/j.gyjzG21042009
Abstract:
A novel type of sinusoidal corrugated steel-reinforced concrete circular pipe was proposed to present the solution to the electromagnetic shielding problem of ordinary reinforced concrete power pipelines. The segment at the top of circular pipe under...
A novel type of sinusoidal corrugated steel-reinforced concrete circular pipe was proposed to present the solution to the electromagnetic shielding problem of ordinary reinforced concrete power pipelines. The segment at the top of circular pipe under...
2022, 52(3): 164-170,226.
doi: 10.13204/j.gyjzG21061808
Abstract:
In order to study the mix proportion and compression size effect of engineered cementitious composites (ECC) under hygrothermal curing environment with average relative humidity of 80% and daytime average temperature of 30 ℃ in spring and summer, mat...
In order to study the mix proportion and compression size effect of engineered cementitious composites (ECC) under hygrothermal curing environment with average relative humidity of 80% and daytime average temperature of 30 ℃ in spring and summer, mat...
2022, 52(3): 171-176,215.
doi: 10.13204/j.gyjzG20110912
Abstract:
In order to reduce the drying shrinkage strain of traditional ECC and the shrinkage difference between concrete and ECC, firstly the paper determined the water-binder ratio and sand-rubber ratio, so that the ECC’s dimensional change rate was coordina...
In order to reduce the drying shrinkage strain of traditional ECC and the shrinkage difference between concrete and ECC, firstly the paper determined the water-binder ratio and sand-rubber ratio, so that the ECC’s dimensional change rate was coordina...
2022, 52(3): 177-182.
doi: 10.13204/j.gyjzG21052108
Abstract:
In order to study the influence of slag and aeolian sand on the strength of concrete, a batch of single-mixed slag (replacement ratios from 0% to 30%) was designed to replace cement of equal masses in initial concrete and single-mixed aeolian sand (r...
In order to study the influence of slag and aeolian sand on the strength of concrete, a batch of single-mixed slag (replacement ratios from 0% to 30%) was designed to replace cement of equal masses in initial concrete and single-mixed aeolian sand (r...
2022, 52(3): 183-190.
doi: 10.13204/j.gyjzG21071908
Abstract:
In order to study the change law of bonding performance between ordinary deformed steel bar and ceramic concrete under the combined action of continuous load and chloride corrosion. The study analyzed the influence of three factors of ceramic concret...
In order to study the change law of bonding performance between ordinary deformed steel bar and ceramic concrete under the combined action of continuous load and chloride corrosion. The study analyzed the influence of three factors of ceramic concret...
2022, 52(3): 191-199.
doi: 10.13204/j.gyjzG21072305
Abstract:
In order to study the uniaxial compression performance of rubber concrete,9 groups of specimens were prepared by orthogonal design method with rates of water to cementitious materials, rubber replacement ratios, rubber particle sizes and fly ash repl...
In order to study the uniaxial compression performance of rubber concrete,9 groups of specimens were prepared by orthogonal design method with rates of water to cementitious materials, rubber replacement ratios, rubber particle sizes and fly ash repl...
2022, 52(3): 200-207.
doi: 10.13204/j.gyjzG21062304
Abstract:
In order to compare the fatigue characteristics of high-strength steel bars with that of HRB400 steel bars, the allowable stress amplitudes of HRB600E and HRB500E steel bars were obtained through stress and strain fatigue tests, and the effects of di...
In order to compare the fatigue characteristics of high-strength steel bars with that of HRB400 steel bars, the allowable stress amplitudes of HRB600E and HRB500E steel bars were obtained through stress and strain fatigue tests, and the effects of di...
2022, 52(3): 208-215.
doi: 10.13204/j.gyjzG20101105
Abstract:
Steel structural components that are subjected to alternating loads often have no obvious signs of fatigue failure, which can easily cause huge economic losses and heavy casualties. Therefore, how to effectively improve the fatigue performance of ste...
Steel structural components that are subjected to alternating loads often have no obvious signs of fatigue failure, which can easily cause huge economic losses and heavy casualties. Therefore, how to effectively improve the fatigue performance of ste...
2022, 52(3): 216-226.
doi: 10.13204/j.gyjzG21062512
Abstract:
In order to study the flexural behavior of concrete beams strengthened by fiber reinforced polymer (FRP) grid and cement substrate, 5 tested specimens were estabilshed finite element model with bond-slip cohesive element. The damage evolution mechani...
In order to study the flexural behavior of concrete beams strengthened by fiber reinforced polymer (FRP) grid and cement substrate, 5 tested specimens were estabilshed finite element model with bond-slip cohesive element. The damage evolution mechani...
2022, 52(3): 227-232,240.
doi: 10.13204/j.gyjzG21031005
Abstract:
The reconstruction and function renewal of old industrial buildings have become one of the key points of urban development at present. Taking the reconstruction of the plant area of North Micro-Electro-Mechanical Intelligent Group Co., Ltd., in Tongz...
The reconstruction and function renewal of old industrial buildings have become one of the key points of urban development at present. Taking the reconstruction of the plant area of North Micro-Electro-Mechanical Intelligent Group Co., Ltd., in Tongz...
