研究结果表明,盾构掘进对地下结构周围土体扰动有限,不会产生隧道整体漂移。
It was shown that the shield driving exerted a limited effect on the underground structures, the "excursion" of existing tunnel did not occur.
在前人的基础上,研究了顶管施工引起土体扰动的机理,提出了更加准确的土体扰动分区图。
The mechanism of soil disturbance due to pipe jacking is investigated, and an improved method proposed to divide the sections of soil disturbance based on the results of former researchers.
模拟计算结果证明,注浆压力越大、管线埋深越深、距开挖面越近,土体扰动对管线位移影响越大。
The numerical simulating results show that soil disturbance influence on pipelines turns greater when grouting pressure, pipelines depth and distance from excavation face turns larger.
顶管施工对土体扰动是不可避免的,土体变形是土体受扰动的结果,而土体变形则会对周围环境造成危害。
Pipe jacking construction disturbs soil inevitably, which would results in soil deformation and does harm to its surroundings.
但施打砂井后,土体扰动引起土体抗剪强度降低是非常可观的,工程学术界和广大现场施工人员应予以重视。
Soil shear strength has a significant decrease due to disturbance after construction of the packed drains, which should be seriously considered for practice technicians and academic authorities.
某地下车站工程施工时,遇到原有建筑的桩基础需拔除,采用全回转设备清除地下障碍物具有对地下原状土破坏小、基本不扰动地下土体的优点。
It is of some advantages to use full-rotating equipment to clear underground obstacles such as little destructive effect for undisturbed soil and no disturbing the underground soil body.
由于基坑开挖过程中土体结构受到扰动,导致土体强度降低。
Disturbance of soil structure leads to the falling of soil strength.
本文主要研究隧道盾构掘进施工中周围受扰动土体应力状态和应变状态的变异,以及由土体应力状态和应变状态的改变引起土体力学性质变异的特性。
The variation of stress state and strain state induced by tunnel shield driving in soils is studied, and the variation of soil mechanical properties is studied too in this paper.
这种施工过程中土体受到的原位施工扰动有别于现场取土、应力释放等引起的试样扰动;
The field disturbance during construction, such as the installing of vertical drain, was distinct from the sample disturbance.
因此,研究扰动土体再固结及其对地铁隧道的影响,对于控制地下工程施工扰动和地铁隧道变形是很有用的。
Therefore, to study the reconsolidation of disturbed soil and its influence on metro tunnel is very useful for controlling the disturbance of construction and the deformation of metro tunnel.
扰动状态概念(DSC)将土体视为两种参考状态:“相对完整”(RI)状态和“完全调整”(FA)状态的混合体。
The disturbed state concept (DSC) is based on the idea that a deforming material element can be treated as a mixture of two reference states: relative intact (RI) state and fully adjusted (FA) state.
本文在对水泥土桩成桩过程分析的基础上,提出了成桩扰动引起的桩周土体中孔隙水压力的计算公式。
This paper presents a formula for evaluating the initial pore pressure generated during the formation of cement-clay pile and describes an analytic method to calculate the pore pressure in ground.
研究泥水平衡盾构掘进各阶段对土体的扰动机制、扰动规律、影响范围以及影响程度。
Then, the underlying laws, influential range, and influence degree for soil disturbance exerted by different stages of slurry shield tunnelling are analyzed.
天然结构性土体在工程实践中易受扰动,导致结构强度降低,工程性质改变。
Natural soil was prone to be disturbed. The structural strength consequently was reduced and the engineering properties changed.
在线性加载的情况下,考虑了扰动区土体水平渗透系数抛物线变化以及桩周土体的径、竖向组合渗流,给出了该问题的控制方程以及解答。
OADC with consideration on the gradual variation of horizontal permeability of soil in disturbed zone is greater than the one without considering the horizontal permeability variation.
在天然土体原位扰动机理的分析研究基础之上,提出了针对原位扰动土的折线形原位压缩曲线。
Based on the mechanism of field disturbance, a new method for modifying the compression curve of disturbed soil was developed.
研究结果表明,施工扰动对基坑安全系数有较大的影响,应采取综合措施控制施工对土体的扰动。
The study shows the construction disturbance can exert an obvious effect on the safety factor. And some engineering measures to control the construction disturbance are taken.
施工会对管道周围的土体产生扰动,引起土体移动。
The parallel buried pipelines will be damaged by soil movements around pipe induced by pipe jacking.
介绍了地基加固施工中的一个痼疾:地基加固施工不可避免地会对周围土体产生扰动,从而导致周围管线及建筑物的沉降。
The method of formation of grouting piles using steel pipes has gained wide application as a foundation strengthening method, and has advantages in the construction which other methods don t have.
介绍了地基加固施工中的一个痼疾:地基加固施工不可避免地会对周围土体产生扰动,从而导致周围管线及建筑物的沉降。
The method of formation of grouting piles using steel pipes has gained wide application as a foundation strengthening method, and has advantages in the construction which other methods don t have.
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