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National Patent

 

 

Title

Patent Number

Date of Grant

A horizontal guide drilling bit for gravel, block and highly weathered strata

Utility Model Patent 2023 2 0082813.4

2023-05-16

A cutting type hole expander for gravel strata and highly weathered rock strata

Utility Model Patent 2023 2 0573560.0

2023-05-16

A steel pipe lifting and clamping tool

Utility Model Patent 2023 2 0082812.X

2023-04-28

A rotary drill bit salvage tool

Utility Model Patent 2022 2 3187939.2

2023-04-28

A device for quickly adjusting the verticality of H-shaped sheet piles

Utility Model Patent 2022 2 3218458.3

2023-04-11

A composite core barrel with welded roller-cone bits and cutting picks

Utility Model Patent 2022 2 3326841.0

2023-04-11

A noise reduction device for power head of rotary drilling rigs

Utility Model Patent 2022 2 3322418.3

2023-04-11

A core barrel with cutting picks

Utility Model Patent 2022 2 3396701.0

2023-04-11

Horizontal displacement monitoring device, system and method for in-service metro tunnels

Invention Patent 2021 1 0863612.3

2023-03-17

Composite core barrel for rotary drilling rigs

Utility Model Patent 2022 22005523.8

2022-11-01

An anti-tip centering rod fixing bracket for surveying instruments

Utility Model Patent 2022 21742091.2

2022-11-01

A sampler for deep drilling mud

Utility Model Patent 2022 2 1024261.3

2022-10-14

Built-in steel mold for round inspection wells

Utility Model Patent 2022 21643974.8

2022-10-14

A device that enables a single person to assemble a core barrel with a single roller-cone bit

Utility Model Patent 2022210785569

2022-10-14

A cross-river level surveying method and system

Invention Patent 2021108649250

2022-09-09

A construction method of rotary bored piles in reef limestone strata

Invention Patent 2020104390596

2022-09-06

Connection structures for lifting large tonnage rebar cages

Utility Model Patent 2022 20858728.8

2022-08-09

A lifting device for large tonnage rebar cages

Utility Model Patent 2022 20858729.2

2022-08-09

A vacuum pumping device

Utility Model Patent 202123359717X

2022-07-12

Underwater leakage stopping device for pipelines

Utility Model Patent 2022200389791

2022-06-24

A construction method of deep-hole high-pressure rotary jet grouting pile in gravel soil layer

Invention Patent 2020101910495

2022-06-24

A construction method for reducing horizontal restraint of bedrock in rock-socket piles

Invention Patent 2020111600300

2022-05-27

A method for analyzing the pullout resistance of piles

Invention Patent 2020109271339

2022-04-26

An anti-slant drilling tool and drilling method for rotary drilling in karst strata

Invention Patent 2020105542079

2022-04-08

An equipment for manufacturing and moving large-diameter extra-long rebar cages and the method of using it

Invention Patent 2020103634061

2022-04-08

Dust collection device and drilling device

Utility Model Patent 2021203897476

2022-01-07

An auxiliary device for lifting the casing of concrete grouting piles

Invention Patent 2019112718237

2021-11-05

Formwork for road construction and molds for road construction

Utility Model Patent 2021203776753

2021-11-05

A drill bit with the function of cleaning the bottom of the hole for drilling small diameter deep wells

Utility Model Patent 2021201876193

2021-11-05

Steel plate specimen fastening bracket and steel plate specimen fastening device

Utility Model Patent 202120187870x

2021-09-24

A special lifting device and its lifting method for lifting extra-long rebar cages of grouting piles

Invention Patent 2020101824767

2021-08-10

A method for quantitative analysis of load-bearing properties of piles

Invention Patent 201810088416.1

2021-05-04

A rapid positioning device for the foundation ground bolts of photovoltaic power plants

Invention Patent 201910269869.9

2021-03-12

A self-use device for drilling mud circulation

Utility Model Patent 202020325950.2

2020-12-08

A grouting pipe and grouting construction method suitable for grouting construction under restricted space conditions

Invention Patent 2018105306609

2020-09-29

A method of static load test for grouted piles

Invention Patent 201810268879.6

2020-09-29

A pile heating device and heating method for geopolymer piles with red mud and fly ash

Invention Patent 201810529688.0

2020-09-01

A construction method of geopolymer pile with red mud and fly ash whose pile body can be heated

Invention Patent 201810530645.4

2020-09-01

A method and system for judging the boring status of a tunnel boring machine

Invention Patent 2018115079599

2020-04-07

Combined electromagnetic vibration exciter testing device

Utility Model Patent 201920468017.8

2020-01-10

A method of construction of bored piles crossing karst caves

Invention Patent 2016108407180

2019-08-30

A geopolymer material formulation of red mud and fly ash at room temperature and its preparation method

Invention Patent 2016103123958

2019-08-09

A method of preparing geopolymer materials from red mud and fly ash

Invention Patent ZL201610017921.8

2019-02-26

A formulation of dealkalized red mud and fly ash geopolymer material and its preparation method

Invention Patent ZL201610312394.3

2019-02-01

A geopolymer material formulation of red mud and fly ash and its preparation method

Invention Patent ZL201610312393.9

2019-02-19

A filling method for karst ground collapse in shallowly buried karst areas

Invention Patent ZL201610354147.X

2019-01-04

A construction method for reverse circulation hole drilling for large diameter vertical shafts in bedrock fracture zones

Invention Patent 201510203173.8

2017-05-17

A reinforcement method for red mud storage yards

Invention Patent 201510202907

2016-07-06

A construction method of connecting rebar cages of cast-in situ piles at the borehole

Invention Patent 201410378895.2

2016-02-24

A construction method for small diameter deep wells using a full-section high counterweight bit device

Invention Patent 201310362469.5

2015-11-18

A non-destructive detection method of karst at the bottom of piles

Invention Patent 2010 1 0539461.8

2013-01-09

A reinforcement treatment method for weak foundation

Invention Patent ZL2010 1 0539463.7

2012-01-11

Preloading consolidation method for soft ground reinforcement

Invention Patent ZL.2008 1 0055390.7

2009-12-23

 
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