US2018209113A1PendingUtilityA1

Method for improving the mechanical and hydraulic characteristics of foundation grounds of existing built structures

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Assignee: THUR SRLPriority: Jul 17, 2015Filed: Jul 15, 2016Published: Jul 26, 2018
Est. expiryJul 17, 2035(~9 yrs left)· nominal 20-yr term from priority
Inventors:Andrea Birtele
E02D 2250/003E04G 23/0229E02D 27/48E02D 35/005E02D 3/123E04G 23/0211E02D 3/12E21D 9/002
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Claims

Abstract

A method for improving the mechanical and hydraulic characteristics of foundation grounds of existing built structures, includes the following steps: a first step of two-dimensional or three-dimensional sensing of at least one portion of the built structure; a step of identifying at least one region of intervention in the foundation ground beneath the at least one portion sensed in the first sensing step; and a step of injecting, through holes provided at least at a part of the intervention region, a cement or synthetic mix. The method further includes second steps of two-dimensional or three-dimensional sensing, mutually spaced in time, of the at least one portion during the injection step; and a step of interrupting the injection step on the basis of the information gathered during second steps of two-dimensional or three-dimensional sensing of the at least one portion.

Claims

exact text as granted — not AI-modified
1 - 12 . (canceled) 
     
     
         13 . A method for improving the mechanical and hydraulic characteristics of foundation grounds of existing built structures, the method including the following steps:
 a first step of two-dimensional or three-dimensional sensing of at least one portion of the built structure;   a step of identifying at least one region of intervention in the foundation ground beneath said at least one portion sensed in said first sensing step;   a step of injecting, through a plurality of holes provided at least at a part of said intervention region, a cement or synthetic mix;   second steps of two-dimensional or three-dimensional sensing, mutually spaced in time, of said at least one portion during said injection step; and   a step of interrupting said injection step on the basis of the information gathered during second steps of two-dimensional or three-dimensional sensing of said at least one portion.   
     
     
         14 . The method according to  claim 13 , wherein said step of interrupting said injection step is performed if the two-dimensional or three-dimensional sensing of said at least one portion sensed in said second sensing steps reveals, between two successive sensings, as a function of the intervention type:
 a. an overall displacement of at least one part of said at least one portion that lies above said intervention region; or   b. a differential displacement of parts of the at least one portion that substantially corresponds to the allowable deformation limit of the at least one portion; or   c. the reaching, on the part of the portion that lies above the intervention region, of a position that was predefined during design.   
     
     
         15 . The method according to  claim 13 , wherein said at least one portion comprises at least one part of a floor structure. 
     
     
         16 . The method according to  claim 13 , wherein that said at least one portion comprises at least one part of a vertical wall. 
     
     
         17 . The method according to  claim 13 , wherein said at least one portion comprises at least one part of a building. 
     
     
         18 . The method according to  claim 13 , wherein said first sensing step or said second sensing steps are performed by at least one optical acquisition device. 
     
     
         19 . The method according to  claim 18 , wherein said optical acquisition device comprises a laser scanning device. 
     
     
         20 . The method according to  claim 13 , wherein said first sensing step or said second sensing steps are performed by a radar device. 
     
     
         21 . The method according to  claim 20 , wherein said radar device is of the interferometry type. 
     
     
         22 . The method according to  claim 13 , wherein said first sensing step and/or said second sensing steps are performed by a device that emits/receives electromagnetic and/or acoustic waves. 
     
     
         23 . The method according to  claim 13 , wherein said first sensing step and/or said second sensing steps are adapted to sense a portion from the outside or from the inside of said building. 
     
     
         24 . The method according to  claim 13 , wherein said injection step is not limited to permeation only.

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