| 1. | Application of through - water lining in canal rebuilding works in high underground water level 透水衬砌在高地下水位渠道改建中的应用 |
| 2. | Phreatic evaporation characteristics and calculation methods with the shallow water table in the saline soil region 高地下水位条件下盐渍土区潜水蒸发特性及计算方法 |
| 3. | The site is also serving as a test bed for an advanced design of tt5000 suitable for high ground water areas 我们把这里当作实验地,用来证明tt5000设计先进,能够用于高地下水位区域。 |
| 4. | Tunnel construction is very difficult hi region with high geotectonic stress and high subsurface water pressure . few deep - lying tunnels are constructed in civil conveyance and hydropower engineering up to now 特别是对在高地应力、高地下水位区域的隧洞建设,其施工难度更大,在国内的水利水电工程建设中并不多见。 |
| 5. | Uplift reduction by drainage is an important technology for ensuring large - sized channel lining works , especially in preventing damage of uplift in high groundwater level to lining body during the non - conveyance period 摘要大型渠道衬砌中的排水减扬压技术是确保渠道衬砌施工的一项重要技术,对于防止非输水期特别是汛期高地下水位对衬砌体的扬压破坏具有重要作用。 |
| 6. | Sanyuan xijiao reservoir is a uniform earth dam which was constructed in the loess foundation with high water table , so the dam foundation dewatering is the main technique of the project , digging up soft clay of the dam foundation after dewatering and reducing the water in the clay which was filled in dam are also techniques of the project 三原西郊水库大坝是建造在高地下水位黄土地基上的均质土坝,坝基的降水问题是该工程存在的最大技术难题,同时对降水后坝基的软土开挖和上坝土料的减湿技术也是其关键技术之一。 |
| 7. | On the basis of repeated analyses and verifications , the construction techniques of shed - pipe grouting etc . are adopted therein , with which the tunneling in low - cemented sandy soil is successfully carried out under the condition of higher ground water level , and then both the design and construction are demonstrated to be reasonable and reliable through the actual water delivery operation 在反复分析论证的基础上通过采用注浆管棚等施工技术,成功地在高地下水位低胶结度的砂性土中开挖隧洞,实际过水应用表明设计施工是合理可靠的。 |