An integrated access box for providing surface access to a curb box or other structure, and tracer wires in a single unit. The integrated access box generally includes a body having a first end and a second end and a first chamber (e.g., a curb box chamber or cleanout chamber) extending into the first end toward the second end of the body. The body may be substantially cylindrical in shape, and may include a first opening near the first end of the body and a first chamber access opening in the first chamber near the top of the body, and a tracer wire chamber extending into the body. The tracer wire chamber includes a second opening near the first end of the body. The integrated access box may further include a tracer wire access opening in the tracer wire chamber near the top of the body.

A manhole rehabilitation system where in one example an existing cross-pipe is exposed and a manhole base and riser are cast around and above the existing cross pipe to form a manhole. In one example an FRP base liner and FRP riser liner are placed before casting in place. In one example casting is made of an aggregate. In one example, a collar and manhole cap rest upon the casting, and are supported thereby such that the liner need not be structural. In one example an existing pipe or manhole forms the outer surface of the casting. In one example shoring is placed and used as the outer surface of the casting.

An apparatus for modelling a shaft in 3D, includes a sensor head adapted to be axially moved within the shaft. The sensor head includes: image sensors placed along the circumference of the sensor head, adapted to take images along an inner circumference of the shaft; a measuring apparatus adapted to determine a measured height position of the sensor head within the shaft. A processing unit includes: a placement module configured to place the images in a virtual space, based on the measured height position and the positioning of the image sensors on the sensor head, a correction module configured to correct the placement, based on comparing overlapping images and/or based on a measured deviation of the sensor head with respect to a central axis of the shaft.

An apparatus for modelling a shaft in 3D, includes a sensor head adapted to be axially moved within the shaft. The sensor head includes: image sensors placed along the circumference of the sensor head, adapted to take images along an inner circumference of the shaft; a measuring apparatus adapted to determine a measured height position of the sensor head within the shaft. A processing unit includes: a placement module configured to place the images in a virtual space, based on the measured height position and the positioning of the image sensors on the sensor head, a correction module configured to correct the placement, based on comparing overlapping images and/or based on a measured deviation of the sensor head with respect to a central axis of the shaft.

An end seal placement tool for placing an end seal in a host pipe within a manhole includes a pole with opposite proximal and distal ends. An end seal holder is disposed at the distal end of the pole. The end seal holder includes an end seal chamber configured to hold the end seal. The end seal holder is sized and shaped to be at least partially inserted into the host pipe. A launcher is arranged with respect to the end seal holder for ejecting the end seal from the end seal holder into the host pipe.

An end seal placement tool for placing an end seal in a host pipe within a manhole includes a pole with opposite proximal and distal ends. An end seal holder is disposed at the distal end of the pole. The end seal holder includes an end seal chamber configured to hold the end seal. The end seal holder is sized and shaped to be at least partially inserted into the host pipe. A launcher is arranged with respect to the end seal holder for ejecting the end seal from the end seal holder into the host pipe.

A manhole frame includes one or more handholds near the entrance to the manhole so that the ladder rungs can be made lower and the access space at the entrance to the manhole thereby increased. The handhold can be cast into the cover-supporting lip, or can be a movable handle which is below the level of the manhole when not in use or extended above ground level when in use.

The present invention relates to a wireless communication device inside a manhole, comprising: a communication terminal installed inside a manhole; and an antenna extension cable connected to the communication terminal, wherein the antenna extension cable is electrically connected to a manhole cover of a conductive material which acts as an antenna so as to deliver a signal received from the manhole cover of a conductive material to the communication terminal. The wireless communication device inside a manhole is capable of delivering information regarding the inside of the manhole (equipment inspection, leakage check, etc.) to the outside without the manhole cover being opened. As such, it is possible to resolve traffic congestion caused by manhole check; control facilities inside the manhole without opening the manhole cover; by delivering opening and closing information of the manhole cover, prevent theft of the manhole and obviate safety accidents caused by the opening of the manhole cover; and prevent manhole worker safety accidents by monitoring the working environment during manhole work.

A safety apparatus includes a safety fabric that in use is positioned in an access opening of a subsurface chamber. The safety fabric has a mesh with a plurality of mesh openings and a band formed around a perimeter of the mesh. At least one safety indicator is attached to the band by at least one strap. The safety indicator may be positioned outside of the access opening by extension of the strap when the safety fabric is positioned in the access opening. The subsurface chamber with the access opening may be an inlet chamber of a lift station.

Provided are various examples of a temporary manhole cover and its methods of use configured to prevent an entire person from falling into a manhole, while providing a unique structure, adjustable in some embodiments, that allows access for a user to simultaneously reach through and/or pass objects through the temporary manhole cover when it is installed in a manhole. The structure may include an annular perimeter portion optionally having an L-shaped cross-section defining a circular interior opening there-through, a first set of two parallel laterally-separated cross-members each attached with and extending across the circular opening, and a second set of two parallel laterally-separated cross-members each extending perpendicularly between and attached with the first set of two parallel laterally-separated cross-members.