On site there are foundation trenches excavating around with warning tape.Please do not cross, even near the foundation trench excavation, avoid foundation trench slope landslide and high falls.5、施工现场内机械正在运作,请各位不要进入机械作业半径,以免发生严重安全事故对您们造成伤害。我们现场安全员会提...
Experience with design and operation of bucket dredges for excavating sand-gravel-boulder soils bucket wall thickness, or the bucket capacity can be increased, using the same weight.3.As a grading device, use should be made of barscreens of the... VM Freidin - 《Hydrotechnical Construction》...
Also referred to as diggers,excavatorsare heavy construction equipment used for excavating earth and rocks and loading them onto dump trucks. Excavators have a boom, bucket, and cab on a rotating platform above an undercarriage with wheels or tracks. They are among the most popular pieces of roa...
EMBEDDING METHOD AND DEVICE FOR CULVERT WATER PIPE PROBLEM TO BE SOLVED: To efficiently and costlessly embed a culvert water pipe by excavating a ditch, installing a water pipe, forming an infiltration laye... N Yasunori,奈良 康則,N Sadami,... 被引量: 0发表: 1999年 Construction of Wellhe...
摘要: PROBLEM TO BE SOLVED: To obtain the subject additive composed of a mixture of a polyacrylamide partially modified to sodium polyacrylate, giving water-stopping property and lubricity by adding to excavating soil and enabling smooth excavation....