基于GIS技术的公路综合选线方法

首次提出了基于ＧＩＳ技术的公路综合选线方法。应用ＧＩＳ技术的空间分析功能,提取公路选线的影响信息;在此基础上,将公路选线问题层次化,并利用层次分析的方法,实现公路选线多因素的综合分析,达到公路综合选线的目的。     

遥感技术在公路勘察设计中的应用

遥感(RemoteSensing-RS)、全球定位系统(GlobePositionSystem-GPS)、地理信息系统(GeographicInformationSystem-GIS)可广泛的应用于工程勘察设计及与公路交通建设有关的资源信息和经济地理分析、交通运输管理、测绘制图等方面,是全面认识公路交通自然环境,提高交通规划水平,协调发展公路网络的关键技术。从公路选线、工程地质勘察、工程设计到公路运行管理,3S技术的信息分析方法有其它手段不可替代的作用;遥感航测制图更有其速度快、质量高、节省人力物力的优势,而三维遥感数据是公路勘测设计自动化的基础,是体现设计思想、优化路线方案最先进有效的手段。     

瞬变电磁法探测公路隧道工程中的不良地质构造

为了给公路设计部门提供选线依据，运用瞬变电磁法在山西境内的某两条高速公路隧道工程设计线路段上进行探测，以查明下覆不良地质构造的发育情况。通过对瞬变电磁法的探测能力进行理论上的讨论，对不同地电断面情况下的异常体电磁响应的定性分析，得出用瞬变电磁法探测不良地质体的可行性结论。经过资料处理，查出不良地质构造赋存的位置，解释结果与钻探资料完全吻合。     

基于可靠度理论的黄土高边坡优化设计

对黄土高边坡进行可靠性分析，应用数学原理和优化原理，建立了黄土高边坡的优化模型，对铜黄一级公路黄土高边坡进行分析验证。结果表明，该方法计算的结果与实际较接近．应用中易操作。     

高山湖盆区特殊性工程岩土

研究了国道219线新疆接西藏段阿克赛钦湖区新生代高山湖盆的构造演化及沉积物岩相分带,利用地质调查、钻探、物探、试验等工作成果,对公路展布带及地基影响深度范围内的特殊性工程盐渍土的盐渍化类型、程度、盐胀性,冻土的类型、融沉性、盐渍化冻土进行了研究与分类。综合评价了特殊土的工程性能和对公路工程的影响程度,为改建公路的选线和路基设计提供了依据,并提出了经济合理、可行的特殊土工程整治措施。     

公路、铁路下煤炭资源回收经验分析

双鸭山矿业集团公司四方台煤矿东西长7．35kin,南北宽5．5kin,年平均设计生产能力100万t。井田上方各有一条南北走向的矿区公路、铁路,该公路、铁路下共有7个可采煤层,累计煤厚9．56m,压煤地质量高达1565万t。从1979年至今,该矿共涉及6个煤层、60余个工作面,采出公路、铁路压煤煤柱量达936．9万t,积累了大量的矿区公路、铁路下采煤经验。     

某滑坡稳定分析及处理方案探讨

滑坡属于不良地质现象，是斜坡上的部分岩体和土体在自然或人为因素的影响下沿某一明显的界面发生剪切破坏向坡下运动的现象。当高速公路不得不通过某一滑坡时，对其稳定性进行分析和整治设计就显得尤为重要。以祁临高速公路灵石至霍州段窑深沟大桥东南窑深沟滑坡为实例，根据勘察资料，利用岩土力学知识，在公路修好后并运行的情况下，计算出了其稳定系数和推滑力，又以材料力学、结构力学等力学理论为基础，设计出抗滑桩和锚索抗滑桩等两种整治方案，经验证，效果良好。     

让工程施工顺利 让失地群众满意——叶县国土资源局为重点项目提供全力服务

叶县国土资源局2002年组建后，正赶上许平南高速公路、漯平临高速公路．燕山水库，60万吨盐厂等一大批省重点工程落地叶县并相继开工建设。既要保证重点项目顺利开工，又要保护好耕地，保障失地农民的利益．协调任务之重．对叶县国土资源人的服务能力是一个严峻的考验。     

瞬变电磁法探测公路隧道工程中的不良地质构造

为了给公路设计部门提供选线依据,运用瞬变电磁法在山西境内的某两条高速公路隧道工程设计线路段上进行探测,以查明下覆不良地质构造的发育情况.通过对瞬变电磁法的探测能力进行理论上的讨论,对不同地电断面情况下的异常体电磁响应的定性分析,得出用瞬变电磁法探测不良地质体的可行性结论.经过资料处理,查出不良地质构造赋存的位置,解释结果与钻探资料完全吻合.     

浙江省泰顺县泗溪镇滑坡特征及其形成机理分析

泗溪滑坡位于浙江省泰顺县泗溪镇南侧隘口即莲筱公路15km 800m隘门段，发育于公路西侧斜坡上，其北东侧为泗溪镇居民区。该滑坡前缘多次发生小型滑塌，后缘拉张裂缝规模较大，危险性及危害程度较大。     

Assessing the influence of highway and high-speed railway construction on local climate using Landsat images in karst areas

Large-scale transportation infrastructure construction in ecologically vulnerable areas such as the karst region of Southwest China requires estimation method for better project design. This research was carried out on a four-lane highway(the Guilin-Guiyang highway, G76) and a two-lane highspeed railway(the Guilin-Guiyang high-speed railway,GGHSR) in karst areas in Guizhou and Guangxi provinces. The highway and high-speed railway were constructed in the 2010 s and covered by Landsat images whose multispectral information could be used for research purposes. In this study, the severity of the impact and the CO_2 emissions from the G76 and GGHSR construction were evaluated. Landsat images and field meteorological measurements were applied to calculate the surface functional parameters(surface temperature and surface wetness) and heat fluxes(latent, sensible and ground heat flux) before and during the highway and high-speed railway construction; the amount of CO_2 emissions during the G76 and GGHSR construction were determined by using budget sheets, which record the detail consumptions of materials and energy. The results showed that the decrease of water evaporation from the highway and high-speed railway construction can reach up to 26.4 m~3 and 20.1 m~3 per kilometer, which corresponds to an average decrease in the vegetation cooling effect of 18.0 MWh per day per highway kilometer and 13.7 MWh per day per high-speed railway kilometer, respectively. At the meantime, the average CO_2 emission densities from the G76 and GGHSR construction can reach up to 24813.7 and 36921.1 t/km, respectively. This study implied that extensive line constructions have a significant impact on the local climate and the energy balance, and it is evident that selecting and planting appropriate plant species can compensate for the adverse effects of line constructions in karst mountain regions.     

阳平桥桩基质量动测分析

本文应用桩的动测基本原理，系统地对西安－宝鸡一级公路阳平桥桩基动测成果进行了检测和分析。其结果表明，阳平２号桥桩的质量劣于４号桥桩的质量。     

Anti-seismic research on nuclear engineering siting

Nuclear engineering belongs to significant project; there is higher requirement on sitings. The study has discussed basic factors of selecting sites, anti-seismic research on sitings including the seismic ground motion, probability methods of seismic hazard analysis as well as interaction about structure and foundation, meanwhile provide the reason for nuclear engineering selecting sites.     

Anti-seismic research on nuclear engineering siting

Nuclear engineering belongs to significant project;there is higher requirement on sitings.The study has discussed basic factors of selecting sites,anti-seismic research on sitings including the seismic ground motion,probability methods of seismic hazard analysis as well as interaction about structure and foundation,meanwhile provide the reason for nuclear engineering selecting sites.     

不同爆破法在钦陆一级公路路基施工的应用

广西地矿建设发展中心在承担钦州至灵山陆屋镇一级公路施工中，根据不同性质的地段，采用不同的爆破方法，即节约了成本，又圆满完成路基施工任务，获得良好的社会效益和经济效益。     

基于室内大型剪切试验及工程地质类比法的弃渣场抗剪强度参数综合取值与稳定性研究

目前工程实践中弃渣场抗剪强度参数主要采用工程地质类比法进行取值, 参数误差较大, 有必要采用多种方法对弃渣场抗剪强度参数进行综合取值研究。以某公路弃渣场为工程实例, 通过室内颗分试验确定弃渣场弃渣的颗粒级配, 在此基础上采用室内大型剪切试验及工程地质类比法综合确定该弃渣的抗剪强度参数, 并以此参数计算弃渣体的稳定性。计算结果表明, 弃渣体在天然工况条件下稳定性系数为1.369, 在暴雨工况条件下稳定性系数为1.083, 弃渣场在计算工况条件下处于基本稳定-稳定状态, 与现场巡查及监测结果基本一致。说明该弃渣抗剪强度参数取值比较合理准确, 可为公路弃渣场参数取值提供参考。      

Preliminary slope stability analysis and discontinuities driven susceptibility zonation along a crucial highway corridor in higher Himalaya,India

Identification of failure susceptible slopes through different rock engineering approach is highly valuable in landslide risk management along crucial highway corridors in the high mountainous region. In this study, a critical highway(NH-5) segment in higher Himalaya has been investigated using the various rock mass characterization schemes based on detailed field observations. Since the highway corridor is highly susceptible to discontinuities-driven failures, consisting of jointed rock masses;Mean and Combined kinematic feasibility analysis has been performed for 20 highway slopes. Observed slope mass classes have been compared to the feasibility percentage of discontinuities driven failures(wedge, toppling, and planar) and accordingly the kinematic feasibility zonation along highway segment has been done for each as well as overall failure types. Based on the slope mass conditions and discontinuities driven failures probability(%), responsive remedial measures have been proposed for individual highway slopes to ensure safe and uninterrupted transportation.     

河南省岩土体类型及主要环境工程地质问题刍议

河南省地处中原,交通发达,人口稠密,人类工程经济活动强烈。全省地貌类型齐全,岩土体类型复杂。在水库建设、矿产开发和铁路公路建设中出现了一系列环境工程地质问题,岩土体类型不同,其工程地质特性各异,产生的环境工程地质问题亦不尽相同。分析岩土体类型及其工程地质特征,是治理环境工程地质问题、防治人为灾害的基础。本文介绍了河南省岩土体类型及其主要工程地质特征。对水库区、采矿区及交通建设中出现的环境工程地质问题进行了详细论述,为治理环境工程地质问题、防治人为灾害提供了地学依据。