Reinforcing wall in a deep excavation site

Abstract

A reinforcing wall, for shoring of excavations, in a deep exaction site is made using a reinforcing pile comprising a length of hollow structural steel, and one or more hollow structural steel channels extending across said pipe for receiving tieback anchors so as to permit said pipes to be anchored into ground behind said pipes when installed in an upstanding position in vertical holes in the ground by installing said tieback anchors through said channels. The shoring wall is made by drilling a row of holes along an edge of said deep excavation site, inserting upstanding piles with prefabricated tieback channels, in at least some of said holes, pouring cementitious material into and around said holes around said piles to form upstanding soldier piles, excavating material from said excavation site to expose said upstanding soldier piles on one side thereof, installing (driving drilling etc.) tieback anchors through said channels into ground behind said upstanding soldier piles.

1 . A method of making a shoring wall for excavations, comprising: 
 drilling a row of holes along an edge of said deep excavation site;    inserting upstanding hollow structural piles in at least some of said holes, said piles having integrated tieback connections, the tieback connections for receiving tieback anchors insertable into said connections;    pouring cementitious material into said holes around and into said piles to form upstanding soldier piles; and    drilling or installing tieback anchors through said channels into ground behind said upstanding soldier piles.    
   
   
       2 . The method of  claim 1 , wherein said piles comprise large piles.  
   
   
       3 . The method of  claim 2 , wherein said connections comprise one or more small pipes extending across said upstanding piles.  
   
   
       4 . The method of  claim 3 , wherein said small pipes extend through said upstanding piles at an angle.  
   
   
       5 . The method of  claim 2 , wherein the piles are steel piles.  
   
   
       6 . The method of  claim 4 , wherein said cementitious material has a strength less than about 5 MPa so that it can be scraped away by a backhoe during excavation.  
   
   
       7 . The method of  claim 1 , wherein said upstanding piles are placed in said row of holes with at least one intervening hole being devoid of a said pile.  
   
   
       8 . The method of  claim 7 , wherein said upstanding piles are placed alternately in said holes.  
   
   
       9 . The method of  claim 1 , wherein said shoring wall is formed by adding formwork and pouring concrete between said soldier piles and said formwork.  
   
   
       10 . The method of  claim 1 , wherein said shoring wall is formed by applying concrete to the exposed surface of said soldier piles.  
   
   
       11 . The method of  claim 10 , wherein said applied concrete is shotcrete.  
   
   
       12 . The method of  claim 1 , wherein said soldier piles are arranged in a secant relationship.  
   
   
       13 . The method of  claim 1 , wherein said soldier piles are arranged in a tangent relationship.  
   
   
       14 . A reinforcing pile for use in making a shoring wall in a deep excavation site, comprising a length of strong pile and concrete, and one or more channels extending across said pile for receiving tieback anchors so as to permit said pile to be anchored into ground behind said piles when installed in an upstanding position in vertical holes in the ground by drilling or installing said tieback anchors through said channels.  
   
   
       15 . Use of a reinforcing pile in making a shoring wall in a deep excavation site, the pile comprising a length of strong pile and concrete, and one or more channels extending across said pile for receiving tieback anchors so as to permit said piles to be anchored into ground behind said piles when installed in an upstanding position in vertical holes in the ground by drilling or installing said tieback anchors through said channels.  
   
   
       16 . Use of a reinforcing pile in a shoring wall in a deep excavation site as a column to support vertical loads, the pile comprising a length of strong pile, and one or more channels extending across said pile for receiving tieback anchors so as to permit said piles to be anchored into ground behind said piles when installed in an upstanding position in vertical holes in the ground by driving said tieback anchors through said channels.