Search results for keyword: drain
Shaft, chute, inclined shaft survey
Vertical well, slipway, inclined well exploration
Vertical wells, slipways, and inclined wells are all important exploration techniques for underground resources. With these techniques, an exploration company can carefully assess the extent and location of resources and make an informed decision ......
1038 
Sophia
Silt and muddy soil foundation investigation
Mud and Mudland Soil Surveying
Mud and mudland are a common feature of the natural landscape, with many areas experiencing higher levels of sedimentation due to the combination of climate, erosion, and human activities. As a result, special attention must be given to mud and mudland when conducti......
rocks and rock masses
Rocks and rock masses are in the Earth’s high pressure, high temperature environment and combined with the effects of long-term weathering and erosion. It is an important mineral raw material forming the surface crust and mantle of the earth, and plays an important role in the circulation of the ......
Karst area survey
Karst landscapes are geographically widespread and are developed predominantly on a variety of carbonate rocks, although areas of limestones, gypsum and hydrogenic rocks are also affected in certain regions. The term ‘karst’ is derived from the Karst topography of the limestone region of Sloveni......
Soil in-situ test
In Situ Test on Earth
Geotechnical testing is critical to understanding the properties of the earth in which structures, foundations and construction are built upon. An in-situ test, or a test conducted in the place the structures are intended to stand, can further enhance the accuracy of the rea......
Hydrogeological Mapping
Hydrogeological Surveying and Mapping
Hydrogeological surveying and mapping is a surveying technique used to map out and determine the characteristics of geological formations and soils that may influence the flow of underground water. It is a critical tool for water resource professionals who use......
Collapsible loess foundation investigation
： Investigation of Saturated Loess Ground Base
Introduction
Soil is a key factor in the design and construction of all civil engineering works such as buildings, bridges, dams, and all kinds of structure. Soil behaves differently under different environmental conditions, and it is essential to u......
Surface mine slope survey
Open-pit slope survey
Open-pit slope survey is an important part of open-pit mining project assessment and design. In the survey of open-pit slope, various geological information is found and the basic frame of open-pit slope maintenance is determined; meanwhile, the stability of open-pit slope i......
Hole Accident
Design Mistakes Causing Subsurface Disaster
Subsurface disaster can occur individually or in clusters as events and disasters, both through natural events and by significant design mistakes, which can have tremendous and far reaching impacts on people, environment and infrastructure. This can be ......
Pipe pickling
Pipeline acid washing is a necessary matter before pipeline operates normally. It enables the pipeline to meet the corrosion protection requirements and successfully implement the relevant protection measures. It mainly consists of cleaning the inner wall of the pipe and removal of the attached so......
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