软弱岩层

金川矿区软弱岩层大断面硐室施工技术

Large-section room construction technique in weak strata in Jinchuan mine area

破碎软弱岩层中大断面隧道施工技术

Large section tunnel construction technology in fractured weak strata

浅埋软弱岩层隧道的钻爆设计与施工

Design and implementation of borehole blasting for shallow buried tunnel in weak rock

软弱岩层中隧道结构体系的可靠度

Structural System Reliability for Tunnel Lining in Weak Rock

软弱岩层中大断面硐室施工与支护技术研究

Investigation on Construction and Support Technology for Large Profile Underground Chamber in Weak Rock Stratum

深埋软弱岩层巷道底臌机理及控制的模拟试验研究

Simulation test and Study on the mechanism of floor Heaving in roadway lying in deep soft strata

泥化夹层的分布，主要在挠曲轴部附近，泥化夹层的连续性和发育程度是随软弱岩层的连续性及泥质成分含量多少而变化的。

The continuity and development of the clay interactions are found to vary with continuity of the weakened stratum and clay content .

通过对所得数据进行分析，得出了软弱岩层隧道洞顶及周边收敛实时与全时段位移变化规律。

Analysis the data getted , conclude real time and whole time displacement change regulation of convergence at top and periphery of tunnel in soft-wreak rock .

由于软岩为强度低、孔隙度大、胶结程度差、含有大量膨胀性粘土矿物的松散、软弱岩层。

Because soft rocks have low strength and high porosity and contain large amount of expansive clay minerals , the freezing-thawing process of soft rock is complicated .

在高速公路路基开挖软弱岩层边坡施工中，采用以压力分散型锚索为主、锚管桩和框架梁等联合支护方案。

In the construction of excavated soft rock slope of highway roadbed , applied united shoring method of pressure-diffusing-type anchorage cable , anchored pipe-pipe , frame foundation beam .

地下工程施工的不良地质地层包括低强度的软弱岩层、地质构造发育的结构松散地层、非岩性粘土和粒状土地层、高地应力地层、富水地层中地下水活动强烈的地段等。

In the tunnel works , the difficult geologic conditions such as weak , structure-developed , clay and granular soil , high-ground-stress or intensive-groundwater-activity strata are often encountered .

以某大跨度汽车硐库工程为例，介绍了在软弱岩层中硐室开挖和初期支护的施工经验。

Taking for example the wide span underground truck chamber project , the construction experience for excavation of underground chamber and primary support in incompetent bed were introduced .

另一方面，国内岩土工程界对于压力分散型锚杆在岩层，特别是在软弱岩层中的工作性能所进行的研究还相当少。

On the other hand , the study on work performance of pressure-dispersive anchor in rock stratum and weak rock stratum especially is not sufficient in the civil geotechnical engineering circles .

大型滑坡主要发生在侏罗山式向斜槽部边缘软弱岩层形成的岸坡地带，并可归纳为4个构造岩性结构类型。

The large landslide was mainly occurred in the belt of the slope bank formed by weak stratum on the edge of Jura type syncline , and might be summed up the four types of the lithologic structure .

软弱岩层中巷道支护应考虑时间效应，二次支护应该在围岩蠕变刚进入稳定阶段施作。

The effect of time should be considered in support of the tunnel in the soft rock , and the secondary support structure should be implemented at the time of the creep of the surrounding rock just entering the stable stage .

其次，在浅埋、软弱岩层中，影响大跨隧道围岩稳定性的主要因素有：地应力、施工方法、开挖工艺、地下水、时间因素以及扁平率等。

Secondly , in the shallow and weak surrounding rock , the prime factors influencing the stability of long span tunnels include : crustal stress 、 construction technology 、 excavation technics 、 groundwater 、 time factor 、 flat ratio , and so on .

该计算模型和电算程序具有处理隧洞围岩的瞬弹性、粘弹性、粘塑性等性态的多种功能，主要适用于研究如盐岩、页岩、泥灰岩等较软弱岩层的粘性机理。

The model with its computation programme is suited for instantaneous elasticity , visco-elastic and visco-plastic behaviours of the rock around the tunnel opening , being especially suited for studying the viscous behaviour of soft rock such as rock salt , shale , marl , etc.

模拟计算的结果表明通渝隧道在大埋深环境下在两帮和边拱部位将出现岩爆，如果围岩是软弱岩层时，则可能发生Ⅱ级以上大变形。

The results indicate that when the wall rock in tunnel is a hard rock , the rockburst may occur at sides of tunnel and edge arch , when the wall rock is a soft rock , a deformation larger than II degree one possibly happen in tunnel .

药包安装法适用于软弱的岩层和深度50～100m的钻孔。

The method of installation with cement pouch can be used in soft strata and the depth of drilling holes can reach 50 & 100m .

软弱水平岩层隧道施工技术

Construction technique for tunnel on horizontal soft rock stratum

为此，本文以鹤壁煤电股份有限公司八矿3003岩中巷为研究对象，对含软弱夹层倾斜岩层水平巷道层位合理布置和支护问题进行了研究。

Therefore , based on the NO.3003 rock roadway of NO.8 coal mine of Hebi coal stock Co. , LTD , the reasonable arrangement and supporting of the tilted strata with weak intercalation was studied .

含软弱夹层的倾斜岩层软岩巷道支护是目前煤矿开采面临的难题之一，随着矿井开采深度的不断增加，这类巷道的支护变得更加困难。

Roadway supporting of the tilted strata with weak intercalation is one of the problems in coal mines . With the increasing of mining depth , this kind of roadway supporting is becoming more and more difficult .

本次灌浆试验针对寺坪水电站大坝坝基软弱岩体的特殊性，研究及探索在中&弱透水性软弱岩层坝基处理中有效提高灌浆压力的方法和工艺。

Grouting tests were carried out in accordance with the characteristics of the soft rock dam foundation at the Siping hydropower station to investigate effective methods and technologies for raising the grouting pressure in the treatment of soft rock dam foundation with medium-weak permeability .