Method and device for drilling a pit or passage, and flexible tube therefor

Abstract

A method and device are disclosed for drilling a pit or passage extending substantially vertically into the ground, and a flexible hose therefor. The method includes providing a frame with a pressure chamber; arranging a first outer end of a flexible tube on the pressure chamber using at least one connecting device; applying a pressure in the pressure chamber with a pressure medium by way of at least one pressure device; and carrying the flexible tube into the ground.

1 . Method for drilling a pit or passage extending substantially vertically in the ground, comprising:
 providing a frame with a pressure chamber;   arranging a first outer end of a flexible tube on the pressure chamber using at least one connecting device;   applying a pressure in the pressure chamber with a pressure medium by way of at least one pressure device; and   carrying the flexible tube into the ground.   
     
     
         2 . Method as claimed in  claim 1 , wherein the pressure medium comprises air. 
     
     
         3 . Method as claimed in  claim 1 , wherein the flexible tube is provided from the pressure chamber. 
     
     
         4 . Method as claimed in  claim 1 , wherein during use the flexible hose is carried from outside into the pressure chamber using at least one sealing device. 
     
     
         5 . Method as claimed in  claim 1 , wherein the flexible hose is carried with a bend into the ground using at least one bend device. 
     
     
         6 . Method as claimed in  claim 5 , wherein the at least one bend device includes a plurality of bend devices and wherein the bend devices are connected to each other with sliding devices for mutually displacing the bend devices such that the flexible tube makes a bend. 
     
     
         7 . Method as claimed in  claim 1 , further comprising:
 repeating the providing, arranging, applying and carrying for a second drilling for the purpose of enlarging the pit or passage.   
     
     
         8 . Device for drilling a pit or passage for a structural element, comprising:
 a frame;   a pressure chamber connected in or on the frame;   at least one connecting device, operatively connected to the pressure chamber, configured to connect a first outer end of a flexible tube to the pressure chamber; and   at least one pressure device, configured to bring the pressure chamber and the flexible tube operatively connected thereto during use under pressure using a pressure medium, such that a pit or passage extending in substantially vertical direction is realized in the ground.   
     
     
         9 . Device as claimed in  claim 8 , wherein the flexible tube is pressed into the ground by the pressure medium. 
     
     
         10 . Device as claimed in  claim 8 , wherein the pressure chamber is provided with at least one sealing device for throughfeed of the flexible tube to the pressure chamber during use. 
     
     
         11 . Device as claimed in  claim 8 , further comprising at least one bend device for realizing a bend in a flexible hose. 
     
     
         12 . Device as claimed in  claim 11 , wherein the at least one bend device includes a plurality of bend devices and wherein the bend devices are provided with one or more extendable cylinders. 
     
     
         13 . Flexible tube comprising:
 At least one of a PVC film and other optionally fibre-reinforced plastic material suitable for application in a device according to  claim 8 .   
     
     
         14 . Device as claimed in  claim 9 , wherein the pressure chamber is provided with at least one sealing device for throughfeed of the flexible tube to the pressure chamber during use. 
     
     
         15 . Device as claimed in  claim 9 , further comprising at least one bend device for realizing a bend in a flexible hose.