分析了两种双隧道开挖对地下管线的影响。
The analysis on the effect of two tunnels' excavation on nearby underground pipeline is carried out.
隧道开挖引起的地表沉降主要由地层损失引起。
Ground settlement induced by tunnel excavation is mainly caused by ground loss.
研究了黄土隧道开挖后围岩结构性的变化规律。
The variation of structural characteristics for excavated tunnels was studied.
对不良地质段隧道开挖灾害防治有一定的借鉴意义。
It is believed that the research has reference to the prevention for disasters in tunnel construction under poor geological condition.
用ANSYS进行的三维隧道开挖数值模拟的命令流。
Carried out using ANSYS three-dimensional numerical simulation of tunnel excavation command stream.
软弱岩体隧道开挖后，围岩变形具有异常显著的流变性。
The deformation of surrounding rock mass has prominent rheological behavior while the tunnel was excavated.
对新奥法隧道开挖和支护施工技术、隧道监测进行了介绍。
Excavation technique, the support and bracing technique, and the monitoring in NATM are presented.
因此，研究隧道开挖对周围地层的影响是一个十分重要的课题。
So it is important to research the effects of tunneling on soil around.
分析了隧道开挖的空间效应，得出了庙垭隧道的空间效应系数。
Through analyzing three-dimensional effect of tunnel excavation, the coefficient of three-dimensional effect in Miaoya tunnel is obtained.
FLAC2D软件模拟在矿山隧道开挖过程中应力场的分布规律。
The distribution laws of stress fields in the course of mine tunnel excavation are simulated by means of FLAC2D software.
浅埋隧道开挖时应严格控制地表沉陷，减小循环开挖进尺和防止塌方。
In excavation of shallow buried tunnel, it should be carry out to decrease the footage to prevent collapse, which shall benefit to diminish the settlement of ground surface.
为保证施工过程中隧道开挖面的稳定，必须科学确定盾构泥浆特性参数。
To ensure the tunnel face stability in construction, the mud fluid properties must be obtained scientifically.
对ANSYS软件模拟连拱隧道开挖及支护结构的有限元理论进行了研究。
ANSYS software simulation of the arch tunnel excavation and support structures of the finite element method were researched.
隧道开挖必然会对地表环境产生一些影响，使地表产生沉降和水平位移等。
Tunnel excavation will affect the safety of the surroundings, which induces the displacement and deformation of the above ground.
然后利用地下水动力学法、地下水径流模数法对隧道开挖涌水量进行了预测。
Then water inflow in tunnel is forecasted using groundwater dynamics and groundwater modulus of runoff.
该模型模拟实际施工过程中，然后动态地分析，对地铁区间隧道开挖的感情。
The model simulated the practical construction process and then dynamically analyzed the affection of excavating on metro tunnel.
根据地应力分布特征，分析了隧道开挖过程中发生岩爆等地质灾害的可能性。
According to the distribution features of the insitu stress, the paper analyzes the possibility of rock burst during the excavation of the tunnel.
分析对比了围岩结构的受力、变形演化状况，评价了隧道开挖系统的稳定性。
The stress and deformation evolvement status of the surrounding rock structure are analyzed and compared on the basis of calculations. The evaluation of tunnels stability has been done.
本公司承接桥梁工程施工，隧道开挖施工，市政工程建设，各种基础桩基施工。
Our company accepts bridge construction, tunnel excavation construction, municipal engineering construction, all kinds of construction of the pile foundation.
采用两阶段分析方法，提出了隧道开挖对群桩竖向位移和内力影响的解析计算方法。
A simple analytical two-stages method for determining the settlement and internal forces of group pile caused by tunneling was present here.
超前注浆管棚支护是一种避免在软土地层或含水地层中盾构隧道开挖面失稳的有效技术。
The advanced pipe grouting is an effective technique to avoid the instability of shield-tunneling faces in soft or water-bearing ground.
利用地下隧道开挖后变形收敛观测数据，采用最小二乘法研究了岩体初始应力场识别问题。
By means of the least square method, the initial stress field parameters are identified according to the measured data of transformation of the rock when the underground tunnel is excavated.
这里介绍的案例研究表明，如果漏了预测和预先排水隧道开挖之前，这样的事故是可以避免的。
Case studies presented here show that if the leakage had been forecasted and pre-drained prior to the tunnel excavation, such accidents could have been prevented.
经与离心试验结果对比分析，验证了应用数值模拟研究盾构隧道开挖对邻近桩基影响是可靠的。
It was proved by the comparison with the results of centrifuge experiments that the study on the influence due to shield tunnel excavation on neighboring piles is reliable through numerical analysis.
基于隧道开挖的工程实例，采用有限元方法，分析了临近桩基的隧道开挖对建筑物桩基的影响。
Based on the tunnel excavation engineering practice, finite element method is selected to analyze the influence of building pile foundation induced by adjacent tunnel excavation with different depths.
根据隧道开挖后其周围地应力变化的观测数据，建立了基于优化算法的岩体初始应力场识别方法。
The optimal algorithm is applied to determine the initial stress field of rock mass according to the stress changes around tunnel after excavation.
为此，本文分析了在黄土隧道开挖中产生坍塌的原因，对如何在施工中预防坍塌进行了简要的探讨。
Therefore, this article analyzes the reasons that generating loess collapse in tunnel excavation and how to prevent collapse in the construction is briefly discussed.
从隧道开挖支护直至隧道位移场应力场稳定，埋深浅侧的锚杆基本上处于受压状态，支护效果有限。
Anchor bars at small depth side are always in press condition and timbering effect is limited from excavation and timbering of the tunnel to a steady displacement field and stress field.
从隧道开挖支护直至隧道位移场应力场稳定，埋深浅侧的锚杆基本上处于受压状态，支护效果有限。
Anchor bars at small depth side are always in press condition and timbering effect is limited from excavation and timbering of the tunnel to a steady displacement field and stress field.
应用推荐