Abad ke-21 dianggap sebagai abad pengetahuan, ekonomi berbasis teknologi berita, globalisasi, revolusi industri 4.0, serta sebagainya. di ini, terjadi perubahan yang sangat cepat sulit diprediksi dalam segala aspek kehidupan baik bidang ekonomi, transportasi, teknologi, komunikasi, info, lain – lain. Industri 4.0 pertama kali diperkenalkan pada Hannover Fair 2011 ditandai digital. Industry adal...

Modern technology has been used to build tunnels in recent years by means of drilling machines (TBM) that were used for civil engineering work in large cities to reduce the harmful effects of spending on the surface of the earth significantly. To build the tunnel, numerical modeling was used on the basis of the finite element method to predict stress behavior during the tunnel construction proc...

The construction scale of the shield tunnel underpass is expanding day by day. In order to study safety influence and deformation control on existing tunnel, LSSVM model established. Based collected soil storage pressure, foam volume, simultaneous grouting volume other six parameters corresponding sample data bottom displacement, horizontal displacement settlement caused approach are predicted....

A 32-year-old man was attacked by flies while camping around Khorram Abad, Lorestan Province, western Iran. Pruritic dermatitis with marked edema and considerable discomfort appeared mainly on the lower legs. The flies were identified as Simulium. Simuliids are tiny bloodsucking flies, popularly known as blackflies or buffalo flies, belonging to the dipterous, family Simulidae. They are occurre...

A new concept called the transmission ratio of ground volume loss (TRGVL) is proposed to describe variation law with depth above tunnel. Based on developed Gaussian function, formula for TRGVL deduced. Further, first-order derivative presented evaluate dilation and compression degree soil at any total 15 cases, involving eight field project cases seven model test are investigated validate ratio...

The stability of the tunnel face during tunneling is one major criteria for design and construction tunnel. Collapse blowout are two modes failure excavation. cover-to-diameter ratio main parameters controlling these modes. Several analytical solutions have been proposed to estimate range support pressure applied on avoid both collapse blowout. However, most those models deal with homogeneous s...