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Using Bayesian Analysis to Implement the Specific Site Variability into LRFD Design of Piles
Springer Science and Business Media LLC - Tập 41 Số 5 - Trang 2897-2911 - 2023
The study developed a two-level Bayesian framework to account for site specific variability in bias estimates for pile capacity evaluations using cone penetration test (CPT) data. The framework updated a weak prior for the bias factor with regional data in level 1 and with site specific data in level 2. A confidence bias site parameter was introduced to give more weight to site specific data. The ...... hiện toàn bộ
Prediction and Classification of Large Deformations in Deep Tunnels Based on Stress Inversion Method
Springer Science and Business Media LLC - Tập 41 - Trang 2343-2358 - 2023
Large deformation disasters of tunnels greatly affect the construction time and quality of the tunnel. In order to best reduce the impact of large deformation disasters on tunnel construction and prevent the problems before they occur, this paper had proposed a method of large deformation disaster prediction and grading technology for deep buried tunnels with high stress, which mainly depends on s...... hiện toàn bộ
Analysis of Ground Settlement Caused by Double-line TBM Tunnelling Under Existing Building
Springer Science and Business Media LLC - Tập 40 - Trang 899-911 - 2021
TBM tunnelling is less used in the subway construction in prosperous city due to the limitation of the engineering geological conditions. The studies on the influence of the TBM construction on the existing buildings are also limited. Therefore, based on the engineering case of tunnel crossing existing building in the section of Haiboqiao ~ Xiaocunzhuang station of Qingdao Metro Line 1, the numeri...... hiện toàn bộ
Study on Dynamic Tensile Strength of Red Sandstone Under Impact Loading and Negative Temperature
Springer Science and Business Media LLC - Tập 37 - Trang 4527-4537 - 2019
In western China, red sandstone is widely distributed. This type of rock is susceptible to generate cracks after being disturbed, and thus becomes a communication channel for groundwater, which poses a great hidden danger in Engineering, such as shaft and tunnel construction. To solve this problem, artificial freezing method is applied to underground engineering. This article focuses on the dynami...... hiện toàn bộ
Dynamic Response of Footing and Machine with Spring Mounting Base
Springer Science and Business Media LLC - Tập 24 - Trang 15-27 - 2006
The effect of the spring mounting cushion inserted in between a machine base and its concrete footing has been examined experimentally by conducting a number of block vibrations tests. The machine was subjected to steady state vertical harmonic loading. Experiments were performed with two different stiffness values of the spring mounting cushion. The employment of the spring mounting cushion, with...... hiện toàn bộ
Experimental Research on Characteristics of Fault Activation and Confined Water Rising
Springer Science and Business Media LLC - Tập 36 - Trang 2625-2636 - 2018
Water inrush due to fault activation in deep coal mining is the main type of water disaster in central and eastern China. This paper analyzed the primary form and mechanism of fault activation that triggers water inrush and derived the critical conditions for fault activation. The WuGou coal mine is used as a geological example, and the characteristics of the fault activation and mechanism of the ...... hiện toàn bộ
Numerical Investigation of the Inclined Pullout Behavior of Anchors Embedded in Clay
Springer Science and Business Media LLC - Tập 31 - Trang 1525-1542 - 2013
Two-dimensional plane strain finite element analysis has been used to simulate the inclined pullout behavior of strip anchors embedded in cohesive soil. Previous studies by other researchers were mainly concerned with plate anchors subjected to loads perpendicular to their longest axis and applied through the centre of mass. This paper investigates the behavior of vertical anchors subjected to pul...... hiện toàn bộ
Strength Weakening and Energy Mechanism of Rocks Subjected to Wet–Dry Cycles
Springer Science and Business Media LLC - Tập 37 - Trang 3915-3923 - 2019
Based uniaxial compression tests of altered granite, the weakening laws of rock strength and energy mechanism of rock failure for altered granite subjected to wet–dry cycles are analyzed. Results show that: (1) with increasing number of wet–dry cycles, the rock weakening coefficient and damage variables increase gradually. The maximum weakening coefficient of altered granite-1 was 50.22%, and the ...... hiện toàn bộ
Coalescence of offset rock joints under biaxial loading
Springer Science and Business Media LLC - Tập 24 - Trang 985-999 - 2006
Crack coalescence in rock masses was studied by performing a series of biaxial compresion tests on specimens made of rock-like material. Specimens of size 63.5 × 27.9 × 20.3 cm, made of 72% silica sand, 16% cement (Type I) and 12% water by weight were tested. The joint inclination angle was maintained at 45°, while the offset angle i.e. angle between the plane of the joint and the line that connec...... hiện toàn bộ
Ảnh hưởng của Góc Va Chạm và Chuyển Động Quay của Các Khối Hình Cầu đến Hệ Số Đàn Hồi Trong Các Tình Huống Nứt Đá Dịch bởi AI
Springer Science and Business Media LLC - Tập 37 - Trang 2523-2533 - 2018
Hệ số đàn hồi là một trong những tham số quan trọng nhất trong mô hình hóa quỹ đạo rơi đá. Tuy nhiên, chúng rất khó thu thập, phụ thuộc vào nhiều tham số, và biến thiên đáng kể ngay cả trong các điều kiện địa kỹ thuật và động học tương tự. Nhiều định nghĩa về hệ số đàn hồi đã được đưa ra, nhưng không có sự đồng thuận về định nghĩa nào tốt hơn trong việc mô tả phản ứng của một khối khi va chạm. Tro...... hiện toàn bộ
#hệ số đàn hồi #mô hình hóa quỹ đạo #đá rơi #tác động xiên #tốc độ góc
Tổng số: 2,979
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