| 摘要 |
A manhole installation and repair assembly. The assembly has a first load carrying member and a second load carrying member. Each load carrying member has a midspan seat arranged substantially at a midspan location of the respective load carrying member's. The midspan seats form a crossmember joint, the joint enables the load carrying member's to be arranged in the same plane and also provides for structural continuity between the load carrying members. The load carrying member's each have ground engaging locations and manhole ring retainer elements to grab on to the manhole ring holding the ring and cover in suspension below the load carrying members. An inflatable form liner is used to span the gap between the manhole ring and the top of the manhole cone.
|
