巖護階地 的英文怎麼說
中文拼音 [yánhùjiēde]
巖護階地
英文
rock-defended terrace-
Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。Part of southern utah ' s " red rock country, " grand staircase - escalante was named a national monument in 1996, adding a 1. 9 - million - acre ( 768, 903 - hectare ) slice of parched, mineral - rich wilderness to u. s. protected lands
大階梯-埃斯卡蘭特是猶他州南部的「紅巖地區」的一部分，在1996年被指定為國家保護區，將這片一百九十萬英畝（ 768 ， 903公頃）氣候炎熱，礦產豐富的原野保留區劃分到美國受到保護的土地當中。2. the concept design is the key phase of the first stage of system optimization. the paper emphatically discusses with emphasis several issues difficulty to answer, such as the determination of the soil parameters, the soil pressure and the safety factor and the reliability of retaining structure, summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river, aged - clay, expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil, puts forward three basic principles of selecting schemes of retaining structure, namely : facing to the problem, facing to the characteristics of excavation and environment
（ 2 ）概念設計是深基坑工程第一步優化? ?系統（方案）優化設計中的關鍵，文中重點討論了概念設計中的幾個難點問題，如土性參數的確定、土壓力的選取、深基坑工程的安全度和可靠度分析等；總結分析了飽和軟土、老粘性、膨脹土和黃土這四類常見地層條件下的深基坑工程中的主要巖土工程問題，其中重點研究了長江級階地上的飽和軟土深基坑邊坡變形和破壞模式，提出了選擇支護方案的基本原則，即：面向問題、面向基坑特點、面向周邊環境特點。Based on the analyses of dynamic deformation process of the soft failure roadway under high ground stress, process - monitoring stepwise supporting principle was put forward to maintain this kind of roadway, that is 1 ) making full use of the carrying capacity of surrounding rocks, 2 ) timely reinforcing the surrounding rock by grouting to enhance its integrality, and 3 ) reinforcing supporting in those key positions
基於該類巷道變形的動態階段性特點，針對性地提出該類軟巖巷道支護的過程監控分步支護的過程式控制制方法，即開巷初期充分發揮圍巖自身的承載能力；適時採取圍巖注漿加固， 「保護與強化」圍巖力學性能，提高圍巖完整性；最後關鍵部位加強支護。分享友人