gravity stress 中文意思是什麼
gravity stress
解釋
重應力-
Basing on this, the paper researches the mechanism of floor heave, and analyzes the effects of gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water on floor heave
在此基礎上，研究深部開采條件下巷道底鼓發生的機理，並對自重應力、構造應力、圍巖強度、地溫、水對底鼓的影響進行了分析。 -
The thesis analyzes the effect of the increase of mining depth on the floor heave, discusses the laws that gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water change with the increase of mining depth
分析了采深對巷道底鼓的影響，以及自重應力、構造應力、圍巖強度、地溫、水隨開采深度變化的規律。 -
As the balancing platform tends to make the barycenter move backward, a more balancing stress distribution under the wall, a higher and steadier wall can be achieved. furthermore, the resupine back of the downward wall not only works reasonably, but also can reduce the amount of excavation and filling obviously. so gravity retaining walls with balancing platform are applied heavily
衡重式擋土墻因具有衡重臺使墻身重心后移、墻底應力趨于平衡，可提高擋土高度、增強墻體穩定性；且仰斜式下墻不僅受力合理、還可減少開挖與回填量等優點而被大量採用。 -
After researching the loads on dangerous rock synthetically, the author points out the development and collapse mechanism of dangerous rock : the geology foundations that forms dangerous rock are the constructional surfaces such as tectonic fracture 、 relief fissure, soft interlayer etc. the developing of dangerous rock is due to release of in - situ stress in rock 、 aeolation 、 water erosion and root flerry. the main loads leading to collapse of dangerous rock are gravity, water pressure and earthquake force
在綜合研究危巖上的各種作用之後，本文提出了危巖的形成和破壞機理：硬質巖體中構造裂隙、卸荷裂隙、及各種軟弱夾層，結構面的的存在是危巖形成的地質基礎；地應力卸荷、風化、流水侵蝕、植物根劈是危巖發育的主要作用；重力、水壓力、地震力是危巖崩塌的主要荷載。 -
Finally, respect to the beam effect induced by special high ratio of modulus of elasticity of baise gravity dam, the sensitivity analysis are carried out to study the relation among displacement, stress state of dam and rock bed parameters
最後，針對百色重力壩特殊的高彈模比地質條件所致懸臂效應，對壩體及壩基的變形和應力狀態與壩基力學參數之間的關系進行了參數敏感性分析。 -
The influence of the stiffness of the gravity abutment on the stress of the arch dam is also analyzed
討論了重力墩的剛度對拱壩壩體應力的影響。 -
Based on the research of several shiplocks, the temperature and stress field of the lock floor is simulated under temperature and gravity loads, where the shiplock floor is built on different foundations, the effect of setting up wide construction joints is analyzed by the nonlinear finite element method
作者通過對多個船閘工程的研究，結合非線性有限元模擬分析方法，考慮重力、溫度等荷載，計算分析土基和巖基上船閘結構底板預留寬縫施工方法的效果。 -
In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation
用有限元法模擬分析涵洞基坑開挖時，採用分層、分步模擬開挖過程的方法，即將計算域內單元分層「挖去」 ，使開挖表面成為無應力表面的方法，分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律；在洞體施工后，回填土體時，據開挖完成時的應力場、位移場，通過逐級增加計算域內的單元數目，施加每級新增加單元的自重荷載，利用有限元法模擬基坑及上覆土體分層填築的施工過程，這不僅反映土體處于再加載應力狀態時，填土受力及變形的一般規律，而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法，量化了三者之間的相互作用關系。 -
Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手，結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式，降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施，採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。 -
The main contents and conclusions of the study are as followed : 1, according to the experiment data of the gravity flow in reservoir, the accuracy and economy of rsm ( reynolds stress model ), k - s model and spalart - allmaras model are compared
主要研究內容及成果如下： 1以水庫重力下潛流的實驗資料作為依據，對rsm模型、 -模型和spalart - allmaras模型的精度和經濟性進行比較研究。 -
The shape of cross section of gravity dams under basic loads was optimized from an initial quadrilateral region with the stability of dam bodies against sliding and the tensile stress in dam heels taken as restraints
以四邊形為初始域，以重力壩的穩定和壩踵拉應力為約束條件，對基本荷載作用下的重力壩基本斷面形狀進行優化。 -
Through the non - linear fem static and dynamic analysis of the rcc gravity dam of kelashuoke reservoir by ansys, the deformation and stress law of dam body and its foundation under various working conditions is studied so as to get to know the working situation of the dam body and foundation rock under design conditions and to evaluate the reliability of the dam construction scheme
摘要採用美國ansys結構分析軟體，通過對喀拉朔克水庫碾壓混凝土重力壩方案進行非線性有限元靜力和動力分析，研究探討了壩體及基礎在各種工況下的變形和應力規律，以了解壩體和基巖在設計條件下的工作形態，對方案的可靠性進行了評價。 -
Centrifuge model test technique preferably solves two problems : one is the gravity loss of the model soil, the other is the coupling problem between the seepage field of the ground water and the stress field of the stratum, which is a guidance for other deformation controls under the similar condition
離心模型試驗技術較好的解決了在地下工程研究中模型土體的自重損失和地層位移分析中地下水滲流場和地層應力場相互耦合作用問題，對于在相似條件下富水地層隧道開挖施工如何控制地表沉降變形的研究方面具有指導意義。 -
Study on effects of transverse joints space on thermal stress of jinanqiao rcc gravity dam
橫縫間距對金安橋碾壓混凝土重力壩溫度應力的影響研究 -
Based on the actual construction, a study on the simulative calculation for both the temperature and the thermal stress of the continuous rcc placement for the construction of langtan rcc gravity dam is made with 3 - d finite element method
摘要結合施工過程，應用三維有限單元法，對龍灘大壩連續澆築混凝土的溫度及溫度應力，進行模擬計算的研究。 -
With considering the construction process of rcc gravity dam and temperature load during construction period, crack constitution model of concrete material is applied to simulated analysis of the temperature stress from construction period to operating period
摘要考慮碾壓混凝土壩的實際成層澆築過程和施工期的溫度作用，採用混凝土開裂本構模型，利用三維瞬態有限元方法模擬模擬分析了大壩施工期至運行期的溫度應力及綜合應力。 -
A finite element numerical model for arch dam - gravity pier - foundation system was established to evaluate the effect of high gravity piers on the stress, deformation and anti - sliding stability of sizhai arch dam, taking the following factors into account, such as the possible elastoplastic deformation of foundation rocks and the nonlinear interaction between the interfaces of gravity pier - dam foundation, the joint surfaces beneath the right bank, and the interfaces of arch dam - gravity pier
摘要為評價高重力墩對四寨拱壩的應力變形和抗滑安全的影響，建立了拱壩重力墩地基系統的有限元數值模型，其中考慮重力墩基礎、右岸夾層和拱壩重力墩等交界面的非線性相互作用，以及基巖材料的彈塑性變形行為。 -
By applying " none homogeneous multi - laminate element ", hong - kou rcc gravity dam ' s simulation computing of temperature field and stress field at construction period and operation period for all courses and many factors. e. some kinds of methods are discussed in detail for temperature field back analysis, and artificial neural network method for back analysis of thermal parameters of concrete is suggested
應用「非均質層合單元法」實現了洪口碾壓混凝土重力壩施工期、運行期全過程多因素的溫度場及徐變應力場的模擬計算，進行多方案的比較分析，推薦出優選溫控防裂方案，取得了非常滿意的成果。 -
In this paper, temperature field and thermal stress of baise 6aa roller compacted concrete gravity dam section are calculated and analyzed, and the distribution laws of the temperature field and the thermal stress field during construction and operation of 6aa dam section and its foundation whose top is made of f6 fault concrete tuck, are mainly studied
本論文通過百色碾壓混凝土重力壩6aa壩段溫度場和溫度徐變應力場的模擬計算分析，主要研究6aa壩段及基礎部位f6斷層混凝土塞施工期及運行期的溫度場和應力場的分佈規律。 -
Three - dimension finite element floating mesh method is used to calculate the temperature field and thermal stress of 6aa roller compacted concrete gravity dam section and f6 fault concrete tuck in this paper. the basic theories adopted include heat conduction theory, elastic theory and corresponding finite element calculation equation
本文用三維有限元浮動網格法對6aa壩段及基礎部位f6斷層混凝土塞的施工過程進行溫度場和溫度應力模擬計算，計算的基本理論是熱傳導理論和彈性理論以及相應的有限元計算公式。
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