深厚覆盖层防渗墙槽壁稳定影响因素及提高稳定性措施

深厚覆盖层防渗墙工程越来越多,深度也越来越大。由于深厚覆盖层地质条件的复杂性,槽壁稳定受到诸多因素的影响,主要影响因素有:地质条件、泥浆性能、地下水位、槽段划分、施工机械和外荷载影响等。针对这些影响因素提出了提高槽壁稳定性的措施,给出槽壁发生坍塌失稳的处理措施,并指明今后研究的发展方向。通过对槽壁稳定的研究,为解决深厚覆盖层防渗墙槽壁失稳问题提供理论依据和研究方法。

Study on the Impact Factors of Groove Wall Stability of Cut-off Wall in Deep Overburden Layer and its Measures for Stabilization

More and more cut-off walls are constructed in the deep overburden layer and the wall goes deeper and deeper.Due to the complexity of the geological conditions of the deep overburden layer,the groove wall stability is affected by many factors,including geological conditions,the performance of slurry,groundwater level,groove section partition,construction machinery,and external load etc.According to these factors,the measures for improving stability of the groove wall are brought forward,especially for the m...