| Patents for E02D 19 - Keeping dry foundation sites or other areas in the ground (2,850) |
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| 05/22/2013 | CN202945610U Steel skeleton simple water-collecting well |
| 05/22/2013 | CN202945609U Foundation pit retaining structure of underground diaphragm wall |
| 05/22/2013 | CN103114605A Anti-seepage drainage layer structure and construction method |
| 05/22/2013 | CN103114602A Foundation pit waterproof curtain achieving secondary melting mending through seepage dipping poly condensation bonding bodies and construction method |
| 05/22/2013 | CN103114601A Cut-off method of rapid-hardening high-spray grouting of strong leakage stratum and device thereof |
| 05/22/2013 | CN103114600A Method for conducting active thermal protection on tunnel shallow buried section in permafrost region using hot bar cluster |
| 05/22/2013 | CN103114599A Deep foundation pit sealed precipitation device and construction method thereof |
| 05/22/2013 | CN103114598A Large-diameter steel cylinder vibration sinking measurement positioning method |
| 05/22/2013 | CN103114571A Method of sealing wall structure in airtight and waterproof modes |
| 05/22/2013 | CN102191792B Low-cost water preparation system for construction of hydraulic and hydro-power engineering |
| 05/21/2013 | CA2538121C An improved underdrain system |
| 05/15/2013 | CN202936803U Natural-cooling waterproof curtain |
| 05/15/2013 | CN202936802U Seepage drain device for beach face of closed tailing pond |
| 05/15/2013 | CN202936799U Foundation pit dewatering bracing structure based on environment control purpose |
| 05/08/2013 | CN202925658U Flexible permeable pipe |
| 05/08/2013 | CN202925560U Novel water-permeating pipe |
| 05/08/2013 | CN202925559U Relief well structure for confined aquifer |
| 05/08/2013 | CN202925558U Enclosed structure of dewatering well |
| 05/08/2013 | CN202925557U Steel cofferdam assembled floating platform |
| 05/08/2013 | CN202925556U Mounting and guiding device for underwater circuit purlins of steel sheet pile cofferdam |
| 05/08/2013 | CN202925511U Sheet-pile wharf structure for soft soil foundation |
| 05/08/2013 | CN202925473U Self-pitching inner support truss structure |
| 05/08/2013 | CN103089301A Grouting reinforcement construction process capable of realizing draining and plugging combined effect for underground water in vertical shaft |
| 05/08/2013 | CN103088838A Open caisson sealing bottom water drainage device and construction method |
| 05/08/2013 | CN103088836A Sedimentation control method for pumping water and performing reinjection in well casing simultaneously |
| 05/08/2013 | CN103088815A Drum-type soil mixing wall (SMW) construction method pile machine |
| 05/08/2013 | CN103088786A Anti-seepage wall and construction method thereof |
| 04/24/2013 | CN202899145U Circular arc wrapping head for cofferdam in construction diversion of large water gate engineering |
| 04/24/2013 | CN202899144U Water retaining cofferdam structure |
| 04/24/2013 | CN103061351A Device for preventing basement bottom floor from heaving and water permeating |
| 04/24/2013 | CN103061350A Deep foundation pit rigid water drainage platform device and using method |
| 04/24/2013 | CN103061349A Processing method for foundation pit piping |
| 04/24/2013 | CN103061348A Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam |
| 04/24/2013 | CN101476326B Bearing platform prefabrication and construction method |
| 04/17/2013 | CN202881963U Inverted filter device for water drainage of retaining wall |
| 04/17/2013 | CN202881962U Foundation pit dewatering structure |
| 04/17/2013 | CN202881958U Foundation pit supporting structure with water falling function |
| 04/17/2013 | CN202881929U Two-shot grouting mixer |
| 04/17/2013 | CN103046568A Long spiral down-the-hole hammer vibrating jet grouting cement soil curtain pile construction process |
| 04/17/2013 | CN103046567A Method for stopping leakage among profile-steel support piles by dry-mixed mortar gravity burying method |
| 04/17/2013 | CN103046566A Simple method for judging and managing open type frozen window |
| 04/17/2013 | CN103046565A Draining method for ultra-deep batholith deep foundation pit |
| 04/17/2013 | CN103046564A Comprehensive water controlling method applicable to waste dumps with confined water at waste dump bases |
| 04/17/2013 | CN103046557A Foundation pit water-sealing supporting method by using long spiral cement soil mixing structural steel pile |
| 04/17/2013 | CN103046552A Drilling and jetting integrated foundation treatment bottomhole assembly |
| 04/17/2013 | CN101886397B Special-shaped steel cofferdam |
| 04/10/2013 | CN202865859U Weak freezing sealing water-stopping structure of soil body between pipe roofs |
| 04/10/2013 | CN202865858U Connecting device of dewatering well sinking pump drain pipe |
| 04/10/2013 | CN202865857U Steel cofferdam sinking control device |
| 04/10/2013 | CN202865828U Fast-draining pipe pile |
| 04/10/2013 | CN103031850A Low-permeability sludge claypan ultra-vacuum dual-pipe unwatering well and construction technology |
| 04/10/2013 | CN103031849A Method for construction of arranging dewatering well in foundation pit and flexibly closing dewatering well |
| 04/09/2013 | US8413406 Foundation wall footing barrier |
| 04/03/2013 | CN202850040U Basement rock gap water pumping sleeve |
| 04/03/2013 | CN202850039U Bridge construction steel cofferdam sinking device |
| 04/03/2013 | CN202850013U Whole composite foundation structure for lime soil and anti-seepage membrane |
| 04/03/2013 | CN103015446A Method for constructing bearing platform on deepwater and rigid impermeable layer |
| 04/03/2013 | CN103015443A Cemented-type high-pressure swing guniting and supporting pile combined water-blocking curtain |
| 04/03/2013 | CN103015442A Method for constructing split type cofferdam |
| 04/03/2013 | CN103015441A Floating water stop device for bridge bearing platform or construction platform |
| 04/03/2013 | CN103015436A Cemented-type water-blocking curtain and anchor pulling pile compounded supporting structure |
| 04/03/2013 | CN103015435A Long auger down hole hammer vibration rotary-jet steel reinforced cement-soil pile foundation pit water-resisting and supporting method |
| 04/03/2013 | CN103015430A Long auger pressure filling steel reinforced cement-soil pile foundation pit water-resisting and supporting method |
| 04/03/2013 | CN103015429A Long auger rotary-jet mixing steel reinforced cement-soil pile foundation pit water-resisting and supporting method |
| 03/28/2013 | DE102007043621B4 Bohrungsabdichtung Bore seal |
| 03/27/2013 | CN202830972U Mountainous area trench excavation section railway structure |
| 03/27/2013 | CN202830952U Novel soft soil foundation structure |
| 03/27/2013 | CN202830948U Descent guide device of cofferdam |
| 03/27/2013 | CN202830947U Leaking stoppage structure of horn mouth of hanging box cofferdam |
| 03/27/2013 | CN202830916U Prefabricated waterproof pile |
| 03/27/2013 | CN102995647A Underground water control method used for grouting and seepage insulation of pile hole |
| 03/27/2013 | CN102995643A Underground-space steel truss foundation pit supporting structure and construction method thereof |
| 03/20/2013 | CN202809665U Blocking device for relief well of micro artesian water in foundation pit |
| 03/20/2013 | CN202809630U Drainage structure of deep foundation pit |
| 03/20/2013 | CN202809629U Pressure-reduction and dewatering supplementary well completion structure in disturbance stratum inside foundation pit |
| 03/20/2013 | CN202809628U Permeable pipe |
| 03/20/2013 | CN202809627U Water-saving irrigation cofferdam for ornamental trees and shrubs |
| 03/20/2013 | CN202809626U Combined steel pipe pile cofferdam without covering layer in deepwater |
| 03/20/2013 | CN202809600U Elastic mesh cloth for heavy curtain type karst cave cast-in-place pile construction |
| 03/20/2013 | CN202809596U Concentration delaying foundation based on controlling of foundation settlement |
| 03/20/2013 | CN102979105A Underground water control method of wellhole grouting and seepage insulation |
| 03/20/2013 | CN102979069A Bored pile platform construction method on covering-free steep bare rock in deepwater and rapid stream |
| 03/14/2013 | CA2780446A1 Suspension extraction device |
| 03/13/2013 | CN202787290U Round single-wall steel bushing box |
| 03/13/2013 | CN202787289U Shut-in dewatering device for tube well |
| 03/13/2013 | CN202787288U Novel waterproof cement mixing pile curtain |
| 03/13/2013 | CN202787287U Bearing platform water stopping structure |
| 03/13/2013 | CN202787286U Large area double-walled steel cofferdam back cover operation platform |
| 03/13/2013 | CN202787285U Prefabricated cushion cap underwater waterstop device |
| 03/13/2013 | CN202787274U Space enclosing structure for deep foundation pit of ample flow super-thick sand layer |
| 03/13/2013 | CN202787270U Temporary vertical column structure with function of dewatering well |
| 03/13/2013 | CN202787204U Pile-foundation construction platform of double-walled steel cofferdam |
| 03/13/2013 | CN102966110A Vertically-combined type impermeable waterproof curtain structure and construction method thereof |
| 03/13/2013 | CN102304924B Non-resource-exploitation dewatering construction method and dewatering well |
| 03/12/2013 | US8393117 Wall flashing |
| 03/06/2013 | CN202767092U Diaphragm wall slot section correcting device |
| 03/06/2013 | CN202767091U Blind ditch structure used for bottom plate to resist floating |
| 03/06/2013 | CN202767084U Drilling-filling top-down high pressure impact extrusion grouting system |
| 03/06/2013 | CN202767056U Open caisson dewatering and draining well barrel used for soft soil solidification construction |
| 03/06/2013 | CN102959157A Method and assembly for constructing a diaphragm wall |