Vertical drains have been widely used in soil improvement projects to accelerate consolidation and improve the strength of soft soil. Previous models are mainly based on instantaneous loading, which cannot reflect actual time-variable loading condition. This paper presents a set analytical solutions for with vertical under depth time-dependent involving one-step multi-step cyclic loading. A fou...

OBJECTIVES To evaluate the efficacy and practicality of a small-bore wire-guided chest drain for management of pleural space disease in dogs and cats. MATERIALS AND METHODS A 14 gauge chest drain was placed using a modified Seldinger technique in animals requiring ongoing management of pleural space disease. A questionnaire was used immediately after placement to collect data regarding the ea...

As a method of chest drainage, we analyzed the extended utility of silastic flexible drains (Blake drains, Ethicon, Inc., Somerville, NJ) for general thoracic surgery. In 420 cases of general thoracic surgery, Blake drains were used. To examine the utility of Blake drains, we investigated the diseases for which they were used, their effectiveness in addressing postoperative complications. The t...

Drains are a common feature of the post-operative management of surgical patients. While drains serve an important function they are also associated with complications such as haemorrhage, tissue inflammation, retrograde bacterial migration and drain entrapment. It is therefore essential that nurses are familiar with the monitoring and management of surgical drains, but also the process involve...

The authors report a simple technique for effective management of surgical drains and their reliable removal in elective hip and knee arthroplasty. Many surgeons use surgical drains for elective total hip and knee arthroplasties and instruct residents in their use despite limited evidence to support routine use of surgical drains in noninfected cases. There are many different types of drains an...

One of the main concerns to design earth dam is the stability of the upstream slope of the earth dam in phase of rapid drawdown. Confined pore water pressure reduces the effective stress in this mode, so possibility of the instability and slippage will be increased. The main goal of this research is to investigate changes in the pore water pressure by using horizontal drains in upstream slope o...

BACKGROUND Problems in the management of thoracic trauma have stimulated the search for an alternative to underwater seals for drainage of the pleural cavity. A chest drainage bag incorporating a one way flutter valve has been compared with underwater seal drains in a randomised clinical trial. METHODS During June-December 1989 119 patients undergoing elective thoracotomy were randomised to r...