harryc
Senior Member
Work on the Lake Shore Drive draw bridge.
Nov 20
Not shure what these are for - sealed on one end they would not be for pin-piles/micro-piles
More crane parts arriving
Pin Piles - the sleeve is driven down until it hits rock and grouted, the tube is backed up may feet and then more grout is forced in under pressure fracturing the lower part.
Regularly scheduled maintenance
Nov 20
Not shure what these are for - sealed on one end they would not be for pin-piles/micro-piles
![49125451032_ebeb535d1a_h.jpg](https://live.staticflickr.com/65535/49125451032_ebeb535d1a_h.jpg)
![49124773168_0d7701b782_b.jpg](https://live.staticflickr.com/65535/49124773168_0d7701b782_b.jpg)
More crane parts arriving
![49124771188_41ae606ee4_h.jpg](https://live.staticflickr.com/65535/49124771188_41ae606ee4_h.jpg)
Pin Piles - the sleeve is driven down until it hits rock and grouted, the tube is backed up may feet and then more grout is forced in under pressure fracturing the lower part.
![49125259951_b908d9299b_c.jpg](https://live.staticflickr.com/65535/49125259951_b908d9299b_c.jpg)
![49124765043_63f0fc571a_h.jpg](https://live.staticflickr.com/65535/49124765043_63f0fc571a_h.jpg)
![49124755408_76dafb225f_h.jpg](https://live.staticflickr.com/65535/49124755408_76dafb225f_h.jpg)
![49124750293_1ef21968d1_c.jpg](https://live.staticflickr.com/65535/49124750293_1ef21968d1_c.jpg)
![49125241966_66e4007b0c_h.jpg](https://live.staticflickr.com/65535/49125241966_66e4007b0c_h.jpg)
Regularly scheduled maintenance
![49124761088_6f50332e10_b.jpg](https://live.staticflickr.com/65535/49124761088_6f50332e10_b.jpg)
![49125250506_22d3ca7aa1_h.jpg](https://live.staticflickr.com/65535/49125250506_22d3ca7aa1_h.jpg)