JP2006299724A5 - - Google Patents

Claims (4)

It is a method of excavation performed to build a pier in the pier construction work,
Excavation ground is excavated with a drilling device using a hole wall protective casing that reaches the bridge surface of the superstructure, and excavation shear is discharged using the inner space of the casing as a soil discharge route, and through the soil discharge route. The excavation method is characterized in that the excavated slab discharged is recovered. It is a soil removal processing device used for pier construction to construct a pier by repeating the extension of a unit-like pier panel that forms one unit of the superstructure of the pier and the placement of a tubular pile material that forms a pier. ,
An excavation waste collecting device configured to accommodate excavation waste discharged along with the pile material placement and to be sent out,
A conveyor for transporting the excavation shear sent from the excavation scrap collector;
A soil disposal apparatus characterized by comprising: It is an excavation and earth removal treatment system used in the construction of a pier that builds a pier by repeating the extension of a unit-like pier panel that forms a unit of the superstructure of the pier and the placement of a tubular pile material that forms a pier. There,
It is comprised from the excavation apparatus for performing the placement of the said pile material simultaneously while excavating the ground, and the soil removal processing apparatus of Claim 2 .
The excavator includes a driving device that applies a driving force for excavation; an excavation shaft member that is inserted into the inner space of the pile material during excavation and is coupled to the driving device; A scattering prevention cover for preventing scattering of excavated shear discharged from the upper part of the pile material at the time of
When excavating the ground, excavate the ground at the tip of the excavation shaft member inserted into the inner space of the pile material, and simultaneously send out the excavation shear using the inner space of the pile material as a soil removal route and discharge from the upper portion of the pile material It is configured to drop the excavated shear to be lowered while preventing scattering by the anti-scattering cover, and drop the excavated shear that has fallen into the excavated waste collecting device of the soil removal processing apparatus to perform the soil removal treatment. Excavation and soil removal treatment system. A pier construction method in which a pier is constructed by repeating the extension of a unit-like pier panel that forms one unit of the superstructure of the pier and the placement of a tubular pile material that forms a pier,
Connecting a new jetty panel to the existing jetty panel of the jetty completed part, and extending the new jetty panel so as to protrude from the jetty completed part;
A step of attaching the soil removal treatment apparatus according to claim 2 to an already-extended or planned extension pier panel or the pier completion part;
The step of building the tubular pile material forming the pier on the ground at the planned pile placement position through the extended guide member of the pier panel;
Inserting a drilling shaft member of a drilling device into the inner space of the pile material;
The step of driving the pile material at the same time while excavating the ground at the tip of the inserted excavation shaft member;
Connecting the pile material that has been laid and the pier panel that has been extended, and
In the excavation and placing process,
During the ground excavation, the excavation shear is sent out using the inner space of the pile material as a soil removal route,
The excavation shear discharged from the upper part of the pile material through the soil removal path is dropped into the excavation shear recovery device of the soil disposal device,
By conveying the excavation shear sent from the excavation shear collector using a conveyor, the excavation shear is accumulated at a predetermined location,
A pier erection method, wherein the pier is erected by repeating the above steps.