According to the seepage problems of Longhuai dam body and its geological conditions, the plastic concrete cutoff wall seepage was adopted to obtain better effect after scheme comparison.
龙怀水库坝体存在渗漏问题,根据工程地质条件通过方案比选,采用塑性砼防渗墻防渗,防渗效果较好。
The inner defects and construction depth of jacket-well refill clay cutoff wall is given.
给出了套井回填粘土防渗墻墻体内部缺陷及施工深度。
The dam cutoff wall is one of the underground hidden projects. Due to the construction technique and quality control, the quality detection is restricted by a variety of factors.
大坝截渗墻属于地下隐蔽工程,由于施工工艺及质量控制等原因,其质量检测受多种因素制约。
Concrete cutoff wall presents a bigger safety and reliability in aspects of the reinforcement of reservoirs「 loss, and foundations」 cutoff in large-medium hydropower stations' deep overlying strata.
Plastic concrete is an ideal cutoff wall material for its excellent mechanics, deformation properties and permeability, which can be overcome lack of ordinary concrete cut-off wall materials.
The effect on seepage is small when the opening of cutoff wall crack is less than0.3cm themaximum relative water head at the bottom of lower core wall is only2.02%.
This paper deals with the construction of cutoff wall with self-setting mortar of the outside curtain in southern anchorage foundation of the Yangluo Bridge in Wuhan City of Hubei Province.
These new technologies and methods basically represent the advanced level in the cutoff wall construction technology in China at present.
这些新技术、新方法代表了我国当前防渗墻施工技术的先进水平。
Then the measures of slot concrete cutoff wall were taken to the dam of Yongji reservoir.
同年开始了除险加固工程,对永记水库的防渗问题采用沟槽混凝土防渗墻处理。
The test results show that soil concrete can satisfy the demands of cutoff wall in aspects of extensive deformation and seepage prevention.
试验表明,塑性混凝土能满足防渗墻良好的变形和防渗性能的工程设计要求。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.