浅谈黄河标准化堤防建设后的堤防管理

黄河下游二期标准化堤防建设即将拉开大幕，黄河两岸大堤将出现一个崭新的局面，不仅工程抗洪及抢险条件发生了变化，同时工程的管理条件也发生了相应的改变。笔者认为必须调整现有的工程管理模式，以适应黄河建设与发展的需要。     

堤防隐患探测中的高密度电阻率法应用

高密度电阻率法是浅部精细勘查的一种电法勘探系统，将高密度电阻率法引入堤防隐患探测，并对中运河某堤段进行了探测研究，取得了令人满意的结果，验证了高密度电阻率法在工程勘察中具有的可行性，有效性和实用性。     

浆砌石在堤防险工治理中的应用

潴龙河千里堤是河北省的防洪工程之一,它担负着保卫我省中部地区及天津市津浦铁路、京九铁路、华北油田等广大地区人民生命财产防汛渡汛安全任务,是防洪确保的堤防。堤防在运行过程中会出现险工险段,为确保堤防的安全,需对险工进行治理。浆砌石由于石块间空隙被充塞密实,因而具有更好的整体性、密实性和强度,可以防止渗水漏水,增加抵抗侵蚀的能力,从而堤防的安全运行。     

堤防护坡工程施工环境保护作业方法研究

根据堤防工程环境保护设计和施工合同环境保护条款,结合堤防护坡工程施工特点和区域环境特征,在进行施工环境保护作业技术研究的基础上,提出具体的、可操作性的环境保护措施与方法,指导施工承包商能按其施工项目及工序,直接进行施工环境保护措施操作,有利于施工承包商按其施工项目及工序实施环境保护作业,有利于监理人员进行有效地环境监理,有利于业主全面、规范化地开展环境管理工作。     

浅谈城市防洪排涝工程设计

本文主要从城市等别和防洪设计标准、堤库结合的防洪标准及级别、堤顶高程的确定、城市防洪规划和城市总体规划相协调、堤防工程设计与城市规划相结合、城市排涝标准的确定及投资分摊进行阐述。     

Numerical Analysis for Temperature Characteristics of Open Boundary Crushed-rock Embankment on Qinghai-Tibet Railway

At present, in order to protect the stability of permafrost beneath embankment, the crushed-rock embankment, as a new type of embankment structure, has widely been used in the construction of Qinghai- Tibet Railway. Its crushed-rock layer is almost open in tow bilateral boundaries and closed at top and bottom, and air can flow into/out of the ballast layer and crushed-rock layer. Therefore, the convection and transfer heat patterns are very complicated in the ballast layer and crushed-rock layer of the embankment, which are regarded as porous media. In this paper, based on the wind, temperature and geology conditions of Qinghai- Tibet Plateau, a numerical approach of the unsteady two-dimensional continuity, momentum （non-Darcy flow） and energy equations of heat convection for incompressible fluid in porous media is provide to analyse the velocity and temperature characteristics of the crushed-rock embankment with different embankment heights under open boundary condition for the coming 50 years. The calculated results indicate that, due to the influence of the external wind, the convective heat transfer mainly relies on the forced convection in the open crushed-rock emban kment. Even if the air temperature will be wanned up by 2.6℃ in the coming 50 years, it still has a better cooling effect on the underlying soils and a low temperature frozen-soil core is formed in the permafrost below it if the embankment is constructed in the regions whose present mean annual air temperature is - 4.0℃. Furthermore, the cooling effect of high crushed-rock embankment is better than that of low embankment. This results from the fact that the wider bottom of high emban kment has a more influence dimension on the underlying frozen soil. However, cardinal winds on Qinghai-Tibet Plateau disturb its convection pattern, so that an asymmetric temperature distribution occurs under high embankment and it is possible to induce a transverse uneven deformation of emban kment, but no similar situation occurs under low embankment. This asymmetric temperature field problem should be considered when crushed-rock emban kment is designed and constructed.     

谈堤防防渗墙施工工艺

本文结合作者工作实践,探讨了堤防防渗墙的施工工艺。     

简述堤防填筑施工工艺

随着国民经济的发展,生产力水平的提高,人们对工程的质量意识和安全意识越来越高,尤其是洪水对人类发出挑战以后,规范堤防工程施工更是关系到国计民生的大事,淮河入海水道工程堤防工程便是按照堤防规范施工的典范,它经受了2003年7月份淮河分洪的考验。本人在几年的入海水道施工中,深感堤防填筑质量的重要,虽然每道工序都有多次的重复,可每一次重复都是一个新的开始,实践出真知,只有认真做好每一道工序,才能铸造出堤防填筑的精品工程。现就堤防填筑施工工艺简述如下:     

试析堤防工程与水文地质环境的关系

堤防工程建设与地质环境有着十分密切的关系,地质环境可以影响堤防建设,堤防工程也会反作用于地质环境,带来新的环境地质问题。     

生物防护措施在沙颖河堤防的应用

生物防护措施在沙颖河堤防的应用河南省沙颖河工程管理局王国营，郭坡生物防护措施即用人为的生物植被保护堤防及其岸坡工程的一种防护型式。由于它具有投资少、施工简单、方法灵活、易于管理、固土防冲效果好等特点，可产生直接的经济效益和生态环境效益。沙颖河堤防自六...