1. In a method for the burying of underground lines which comprises placement of a line within an excavation, and subsequent backfilling, the improvement which comprises including within the backfill at a generally predetermined level adjacent the buried line an indicating means comprising a tearable...
Electric power by water is a Win, win, win. No Fossil fuels used and no air pollution from this source. The price of the water is stable. Over the long term the cost of making this electricity will become relatively cheaper as the price of coal, oil and natural gas rise. Ask...
With the increasing intensity of underground development, the planned metro lines will inevitably pass through water-rich soft stratum. The existing resear... Li, Xinyu,Zhang, Dingli,Hou, Yanjuan - Applied Sciences (2076-3417) 被引量: 0发表: 2022年 加载更多研究...
The field of the invention is systems and methods for installing fiber optic cable or similar cables or conduits underground. More specifically, the invention relates to the installation of such cable or conduit into pressurized pipelines, such as natural gas pipelines. With the tremendous growth of...
The present invention relates to an underground distribution line installation device for easy installation of underground distribution lines which comprises a housing (10), a connection terminal (20), a pusher button (30) and a current carrying plate (40). The current carrying plate is elastic...
Contractor Installing Underground Electric Transmission Line on St. CroixDaily News )
ARRANGEMENT AND METHOD OF INSTALLING A LINE ALONG AN UNDERGROUND ARC WAYSHERINGTON M.D.
The bell-shaped top surrounds a connection area of the fitting sets and the valve and/or gate valve. An independent claim is also included for a fitting set for actuating armatures of underground running gas or fluid lines, comprising a dome sleeve.Schmidt, HorstFaltenbacher, Frank...
The present invention relates to a connecting rod for stable installation of an underground power distribution line. The connecting rod of the present invention comprises: a supporting tool (10); a connecting tool (20); a spinning tool (30); a fixing member (40); at least two length ...
PURPOSE: A motorized type underground conduit placing apparatus and a underground conduit placing method using the same are provided to lower construction cost since all works from the arrangement of conduit lines to leveling are executed through a single process. CONSTITUTION: A body(100) comprises ...