Wei Zhenlei

Wei Zhenlei
Zhejiang University | ZJU · Department of Civil Engineering

Doctor of Engineering

About

22
Publications
4,215
Reads
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295
Citations
Citations since 2016
21 Research Items
292 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100

Publications

Publications (22)
Article
A regional soil thickness prediction strategy based on stratified sampling was implemented. It can collect samples reflecting major topographic characteristics in a mesoscale spatial area to achieve the fine extension prediction of soil thickness from points to the entire area. The strategy firstly selected significant covariates based on historica...
Article
Full-text available
The decomposition of gas hydrates releases gas and water at volumes much larger than the original volume. The gas escapes violently, which destroys seabed sediments and can even cause geological disasters. To explore the effect of natural gas hydrate decomposition on underwater slopes, laboratory experiments were conducted to observe the features o...
Preprint
Full-text available
Abstract. The distance to the surface rupture zone has been commonly regarded as an important influencing factor in the evaluation of earthquake-triggered landslides susceptibility. However, the obvious surface rupture zones usually do not occur in some buried-fault earthquakes cases, which mean lacking of the information about the distance to the...
Article
Full-text available
An increase in groundwater table is a critical trigger for a deep-seated landslide. An effective way of improving the stability of the deep-seated landslide is to reduce the groundwater table through drainage works. This study aims to clarify the effectiveness of drainage tunnel systems in preventing and controlling deep-seated landslides based on...
Article
Prefabricated vertical drains (PVDs) are widely used to accelerate the consolidation process within soft ground. The overall degree of consolidation (DOC) of soft ground is highly dependent on the arrangement of PVDs, such as their length and spacing. Nevertheless, only the ranges of spacing and length are recommended in codes and standards, which...
Article
Full-text available
A rising level of groundwater is a critical trigger for deep-seated landslides. Accordingly, an effective measure to improve the stability of a landslide is to reduce the groundwater level of a slope by using a drainage system. This study investigates the effectiveness of drainage tunnels in increasing the rainfall threshold of a deep-seated landsl...
Article
The drainage of groundwater is essential to slope stabilisation in both potential and existing landslides. Air injection is a new method for slope drainage that aims to control rapid rises in the groundwater level by creating an artificial unsaturated zone with low permeability. The interception ratio, reflecting the effectiveness of the air inject...
Article
Peak discharge plays an important role in triggering channelized debris flows. The rainfall regimes and rainfall characteristics have been demonstrated to have important influences on peak discharge. In order to explore the relationship between rainfall regimes and peak discharge, a measuring system was placed at the outlet of a small, debris flow-...
Article
Full-text available
As one of the common geological disasters on the seafloor, the occurrence of pockmarks often indicates the existence of submarine fluid. And the formation of the pockmarks is generally attributed to the soil carried away by the fluid. The research established physical model test and found: (1) The pockmark formed after aeration, and particle gradat...
Article
The siphon drainage is an effective measure for the slope groundwater control. However, for the traditional siphon drainage, limitations such as siphon lift restriction and poor reliability in longterm service prevent it from being widely used. In this study, an improved siphon drainage method with inclined borehole penetrating the deep part of the...
Article
Local collapse or even overall movement may occur due to excavation at the slope toe, especially when there is a weak interlayer in the stratum. This process frequently produces many tension cracks on the slope surface, increases the sensitivity of groundwater to rainfall and thus promotes the development of landslide. The Houpucun landslide, which...
Article
Slope drainage is crucial to landslide mitigation, yet current drainage technologies still encounter difficulties in achieving fast drainage. Based on the permeability characteristics of unsaturated soil with low water content, this study presents a new drainage measure, known as the air injection method, by injecting compressed air into the soil t...
Article
Excessive water in a channel is an important factor that triggers channelized debris flows. Floods and debris flows often occur in a cascading manner, and thus, calculating the amount of runoff accurately is important for predicting the occurrence of debris flows. In order to explore the runoff-rainfall relationship, we placed two measuring facilit...
Article
Conventional drainage consolidation methods cause significant energy consumption and environmental issues. In this paper, a method combining siphon drainage and surcharge loading is proposed to drain water from soft soil with vertically installed prefabricated vertical drains (PVDs) and a siphon tube. To investigate the availability and effectivene...
Article
Excessive water in a channel is an important factor that triggers channelized debris flows. In this study, we propose a new system for the separation of water and sediment and drainage in order to drain water away from channels and reduce the potential for debris flows. The main component of the system contains a siphon drainage pool covered with a...
Article
The peak runoff discharge plays an important role in triggering channelized debris flows, especially for small catchments, due to the features of a small area and short channels. In small catchments, intense rainfall can trigger a flood within a short period of time. But currently, there are few rainfall threshold models that address the runoff fro...
Article
A new type of water-stone shunt system was proposed according to the hydrodynamic condition, which is an important motivating factor of debris flow. The system mainly composed of inclined plate shunt pool and siphon drainage pipe. This system could rapidly discharge the water and eliminated the exceeding hydrodynamic conditions, making great signif...
Article
The gravity forced technologies are commonly utilized for the cut and drainage of water in debris flows. However, such technologies generally result in large volume of earth works and low draining efficiency. Moreover, large carrying sediments in debris flow often deposit the cut drainage structures. Therefore, a debris flow prevention technology w...

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