轴承特征和沉降计算方法在珠珠的地地区的堆群体
Jie Li1, Jiaxing Tao2, Juncheng He1
1China Railway 16th Bureau Group Railway Transportation Engineering Co., Ltd., Guangzhou, Guangdong, China.
PloS one
|December 9, 2025
概括
岩石洞穴的位置显著影响着堆群基础承载能力. 中心的岩洞提供更高的容量,而外围的则减少,指导工程实践.
科学领域:
- 地质技术工程 地质技术工程
- 卡斯特地质形态学 卡斯特地质形态学
- 基金会工程工程基金会工程
背景情况:
- 石灰岩地质构成对基础设施开发,特别是堆组基础构建构成独特的挑战.
- 了解岩空隙位置对基础稳定性的影响,对于安全施工至关重要.
研究的目的:
- 研究岩洞穴的位置如何影响堆群基础的承载能力.
- 开发一种计算堆群基础定居点的方法,考虑岩洞的位置.
主要方法:
- 理论分析侧重于堆组效应的减少率.
- 对各种岩洞位置的结算式的推导.
- 有限元数值模拟与现实项目的现场测量验证.
主要成果:
- 对于轴承特征的拟议分析方法证明了其广泛的适用性.
- 当石洞穴位于中央堆基础区域以下时,最终承载能力更高.
- 外围的岩洞穴位置导致最终承载能力的下降.
结论:
- 该研究提供了一个理论框架,用于评估岩对基的影响.
- 研究结果为管理和控制与地形相关的工程风险提供了实际指导.
- 准确预测承载能力和结算能力对于地地区的基础设施安全至关重要.
相关概念视频
Design Example: Maintaining Level of an Embankment
388
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
388
Specific Gravity of Aggregate
746
Aggregates typically contain pores, which can be either permeable or impermeable. Considering the pores in the aggregates, the specific gravity of aggregates is defined in three different forms, namely, bulk or gross specific gravity, apparent specific gravity, and absolute specific gravity.
Bulk or gross specific gravity is calculated by taking the ratio of the mass of aggregates in the saturated surface-dry state to the total volume that includes both the solids and the voids within the...
Bulk or gross specific gravity is calculated by taking the ratio of the mass of aggregates in the saturated surface-dry state to the total volume that includes both the solids and the voids within the...
746
Field Procedure for Staking Out Curves
408
Staking out curves is an essential process in construction to ensure the accurate alignment of structures along a curved path. This task involves positioning stakes at calculated locations corresponding to the curve's design, effectively translating plans into physical markers in the field. The process begins by determining the geometric parameters of the curve, including the radius, central angle, and tangent distances. These parameters are critical for identifying key points such as the...
408
Elastic Curve from the Load Distribution
479
The structural behavior of beams under distributed loads is critical for engineering analysis, which focuses on predicting how beams bend and react under such conditions. Different types of beams (e.g., cantilever, supported, or overhanging) behave differently under distributed load conditions.
For all beams, the analysis of the beam's reaction to distributed loads begins by understanding the relationship between a beam's load and the resulting shear forces and bending moments. Initially, this...
For all beams, the analysis of the beam's reaction to distributed loads begins by understanding the relationship between a beam's load and the resulting shear forces and bending moments. Initially, this...
479
Porosity and Absorption of Aggregate
718
Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
718
Beams with Unsymmetric Loadings
385
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
385


