<p>Soil nailing is an effective stabilizing method for slopes and excavations and has beenwidely used worldwide. It is a reinforcing method using the shear strength of in-situground and the pull-out resistance of soil nailing. Research on numerical schemes ...

<p>In tunneling, it is very important to select the correct tunneling machines. Choosing a wrong method may be very costly to the company. There are many parameters affecting the decision stage of selection of the tunneling machine. Geology ...

<p>The simulation of the advancing process for arbitrary alignments during shield tunneling requires a continuous adaption of the nite element mesh in the vicinity<br />of the tunnel face in conjunction with a steering algorithm for the Tunnel Boring Machine ...

<p>A model for probabilistic assessment of excavation performance of tunnel projects is presented. The model is based on Dynamic Bayesian Networks (DBN) and enables to consider the quality of the design and construction process. It is applied on a case study, ...

This paper presents the results of an elastoplastic finite element back analysis of an excavation made on a saturated soft organic clay deposit in Rio de Janeiro, Brazil. The excavation was conducted as part of an urbanization program, in which artificial ...

<p>In view of the excavation unloading characteristic, the variation of soilmass strength is studied through the theoretical deduction and the test analysis. Baseed on the Hvorslev&rsquo;s real strength theory, the strength ratio of the unloading soil and ...

<p>The Open and Go-down square is located at the center of the city where the constructional surroundings are very complex. It&rsquo;s a great challenge to the excavation because metro line 1 and 2 tunnels just underlie the pit forming a shape of double crossing ...

Monitoring data that can be used in conjunction with current numerical capabilities are discussed, including laser scanning and webcams for developing an accurate record of construction activities, and automated and remote instrumentations to measure movements ...

<p>The loess excavation has its unique characteristics compared with the others due to its structural property and collapsibility. In order to acquire the work mechanism and design methods of composite soil-nailing in loess excavation, a reasonable finite ...

<p>Taking a 24.09-m-deep foundation pit of Shanghai Metro Line 1 which uses the semi-reverse construction process of &ldquo;three open excavating-one tunneling&rdquo; as an example, through gathering and analyzing field monitoring data and making use of forward ...