CN106894431B - Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment - Google Patents

Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment Download PDF

Info

Publication number
CN106894431B
CN106894431B CN201710093450.3A CN201710093450A CN106894431B CN 106894431 B CN106894431 B CN 106894431B CN 201710093450 A CN201710093450 A CN 201710093450A CN 106894431 B CN106894431 B CN 106894431B
Authority
CN
China
Prior art keywords
precipitation
hole
pit body
hypogee
waterproof layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710093450.3A
Other languages
Chinese (zh)
Other versions
CN106894431A (en
Inventor
易斐
宋静
邓涛
齐树凯
魏金祥
朱楚斐
韩宪杰
王强
张金涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weifang Hongyuan Waterproof Engineering Co Ltd
Hongyuan Waterproof Technology Group Co Ltd
Original Assignee
Weifang Hongyuan Waterproof Engineering Co Ltd
Hongyuan Waterproof Technology Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weifang Hongyuan Waterproof Engineering Co Ltd, Hongyuan Waterproof Technology Group Co Ltd filed Critical Weifang Hongyuan Waterproof Engineering Co Ltd
Priority to CN201710093450.3A priority Critical patent/CN106894431B/en
Publication of CN106894431A publication Critical patent/CN106894431A/en
Application granted granted Critical
Publication of CN106894431B publication Critical patent/CN106894431B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/12Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/20Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Abstract

The invention discloses pit body waterproof construction precipitation processing methods in hypogee under a kind of water resource enriched environment, the processes such as graded sand and stone and concrete are filled out including setting precipitation hole, suction pump, cover board, filling, it efficiently solves under underground space foundation bottom shallow-layer water source enriched environment, the inner product Water Spreading at the positions such as bedding plane located underground sump below, elevator, cushion cap foundation well is active, on the one hand, it not can guarantee operation in the environment of Wu Mingshui of construction site waterproof layer, cause waterproof layer that can not construct in shaft bottom basal plane;On the other hand; ponding occurs that sump, elevator, cushion cap foundation well when pouring in the structural concrete of bottom plate, and isolation, compactness is poor, design requirement etc. is not achieved in thickness of protection tier; the problem of structure safety is threatened so as to cause steel bar corrosion, concrete carbonization etc.; it is laid with for waterproof layer and the anhydrous operating condition of advantageous base has been striven in concreting, the construction quality of waterproof layer and concrete structure has been effectively ensured.

Description

Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment
Technical field
It is anti-that the present invention relates to hypogee pit bodies under hypogee waterproof technique more particularly to a kind of water resource enriched environment Water Dewatering processing method.
Background technique
Base pit dewatering is always the emphasis of building underground engineering construction, and Method on Dewatering of Foundation Pit is more, including bright ditch adds and catchments Well precipitation, Application of light well point precipitation etc., but the above dewatering mode are not enough to exclude sump, elevator, cushion cap foundation well completely The inside ponding constructed below equal bed courses absolute altitude, and due to the uncontrollability of field condition, substrate surface water is easily accumulated in lower. When substrate shallow-layer abundant water, before waterproof layer laying, temporary drainage is carried out to sump, elevator, cushion cap foundation well etc. It is laid with waterproof layer immediately afterwards, technology room is every service speed still not as good as substrate shallow seated groundwater to sump, elevator, cushion cap foundation well Deng recharge speed.Above situation, it is possible to create tripartite's face is rung:
Firstly, influenced by ponding, waterproof construction base condition be unable to satisfy ensure construction of waterproof layer quality without bright water base Layer require, may (or even bright water) excessive because of substrate humidity cause waterproof coating layer that can not form a film, waterproof roll overlap joint it is not firm Deng;
Secondly as the influence of ground water pressure, even if waterproof layer can hand over circle closed, waterproof layer holds without protection Easily destroyed by ground water pressure.
Again, ponding make sump, elevator, cushion cap foundation well the structural concrete of bottom plate occur when pouring from Analysis, compactness is poor, design requirement etc. is not achieved in thickness of protection tier, threatens so as to cause steel bar corrosion, concrete carbonization etc. Structure safety.
Summary of the invention
The technical problem to be solved by the present invention is to invent hypogee sump, elevator under a kind of water resource enriched environment The pit bodies such as well, cushion cap foundation well waterproof construction dewatering measure tectonic sieving and construction treating methods can effectively overcome current foundation pit Defect in precipitation technology, it is ensured that the requirement without bright water of construction of waterproof layer quality.
To achieve the goals above, the present invention adopts the following technical scheme:
Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment, comprising the following steps:
Step a. is cheated in pit body bottom setting precipitation, and suction pump is arranged in hole in precipitation;
Step b. precipitation hole top sets cover board, the prefabricated casing of cover plate central or reserving hole, suction pump cable and drainpipe It is pierced by out of casing or hole;Pit body bottom waterproof layer is laid with to casing or the closing in of hole periphery;
Before step c. pours hypogee pit body, the drainpipe and cable of suction pump are cut off;
Step d. is filled into precipitation hole from cover plate central casing or hole and is filled out graded sand and stone;
Into precipitation hole, casting concrete is to pit body bottom plane from cover plate central casing or hole by step e., then with speed Condensate mud seal cover board center sleeve or hole maintain an equal level with cover board upper surface
Step f. is laid with the waterproof layer of cover plate central casing or hole position and overlaps with pit body bottom waterproof layer;
Step g. pours pit body structural concrete.
Preferably, the protective layer uses pea gravel concreten or cement mortar.
Further, for the protective layer when using pea gravel concreten, thickness is not less than 50mm;When using cement bonded sand When slurry, thickness is not less than 20mm.
Preferably, in the step a after precipitation, which is cheated, to be arranged, hole foot mat is spread in precipitation is cheated immediately and builds earth-retaining Wall, and smear earth-retaining mortar or concrete.
Preferably, precipitation hole depth is not less than the suction pump height+100mm.
Preferably, 20% of the total volume of the graded sand and stone not less than the total measurement (volume) that the precipitation is cheated.
Preferably, before the step f further includes overlap joint, pit body bottom waterproof layer overlap is carried out at cleaning and drying The step of reason.
Preferably, the pit body be sump, elevator, it is a kind of in cushion cap foundation well.
Bottom setting precipitation at positions such as building sump, elevator, cushion cap foundation wells is cheated, and is placed and is drawn water in precipitation hole Pump enriches underground water for extracting well internal surface layer construction ponding and substrate shallow-layer.Precipitation hole top sets cover board, and cover plate central is prefabricated Casing or reserving hole, suction pump cable and drainpipe are pierced by out of casing.The waterproofs such as sump, elevator, cushion cap foundation well It is laid with when layer construction to periphery of spigot and closes up, be laid with the separation layer and protective layer of waterproof layer.Before structural concrete pours, cutting row Water pump cable and pipeline fill into precipitation hole from casing fill out graded sand and stone, Reperfu- sion concrete immediately, and finally sealed casing pours Build sump structural concrete.
The present invention efficiently solves under underground space foundation bottom shallow-layer water source enriched environment, bedding plane located underground with Under the positions such as sump, elevator, cushion cap foundation well inner product Water Spreading it is active, on the one hand, not can guarantee construction site Waterproof layer operation in the environment of Wu Mingshui, causes waterproof layer that can not construct in shaft bottom basal plane;On the other hand, ponding makes to catchment Well, elevator, cushion cap foundation well the structural concrete of bottom plate occur when pouring isolation, compactness is poor, cover to reinforcement is thick Design requirement etc. is not achieved in degree, and the problem of structure safety is threatened so as to cause steel bar corrosion, concrete carbonization etc., spreads for waterproof layer If having striven for the anhydrous operating condition of advantageous base with concreting, the construction of waterproof layer and concrete structure has been effectively ensured Quality.
Detailed description of the invention
Fig. 1 is that hypogee pit body pours pre-structure schematic diagram;
Fig. 2 is that hypogee pit body pours rear structural schematic diagram;
Wherein, 1- precipitation is cheated;11- precipitation cheats crater wall;12- precipitation hole hole bottom;13- graded sand and stone;14- cheats inner concrete; 2- suction pump;21- cable and drainpipe;3- cover board;31- casing;32- accelerated cement;4- waterproof layer;5- protective layer;6- precipitation Hole top waterproof layer;7- pit body structural concrete.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in Figure 1, cheating 1 in hypogee pit body bottom setting precipitation, suction pump 2 is placed in precipitation hole 1, for extracting Well endosexine construction ponding and hole bottom phreatic water.1 top of precipitation hole sets cover board 3, the prefabricated casing 31 in 3 center of cover board or reserved Hole, suction pump cable and drainpipe 21 are pierced by out of casing 31 or hole.Pit body bottom waterproof layer 4 is laid with to casing 31 or hole Hole periphery is closed up, and is laid with protective layer 5 and is made insulation blocking to waterproof layer.Precipitation cheats 1 depth and is not less than suction pump height+100mm;Drop Puddle figure can be cuboid-type, can also be cylinder.Cement mortar bedding cushion, pea gravel concreten pad can be used in precipitation hole hole bottom 12 Layer.When using cement mortar bedding cushion, thickness is not less than 20mm;When using pea gravel concreten bed course, thickness is not less than 40mm; Precipitation hole crater wall 11 can be used the wide brick wall retaining wall of a stretcher, pea gravel concreten retaining wall, cement mortar retaining wall or not handle Etc. modes, it is specific that regard soil property situation selected.3 periphery of cover board is beyond 1 top periphery 50mm of precipitation hole;Steel plate can be used in cover board material (with a thickness of 3~8mm), precast concrete cover (with a thickness of 15~60mm) or template (including plank sheathing, glued board etc.);Lid Plate center sets casing or hole, and casing caliber or hole internal diameter are not less than 48mm;The gold that length is 10~100mm can be used in casing Belong to pipe (such as shelf pipe), pvc pipe or other materials pipeline;Casing cannot stretch out lid surface;When using steel deck-plate, by metal Casing is welded on steel plate center;When using precast concrete cover, the sleeve pipe pre-embedding heart in a mold is formed whole with cover board Body, or sleeve is removed into hole;When using template, cuts or cut template center and form hole.Cover board upper surface preferably with 4 base of waterproof layer (bed course or screed-coat) surface maintains an equal level, to guarantee that waterproof layer 4 is smooth in pit body bottom base paving.Suction pump 2 Sewage pump, fresh water pump, immersible pump, booster pump etc. can be selected, which kind of type, suction pump the view water, sediment content of power selected Depending on;Cable and drainpipe are pierced by out of casing.Pea gravel concreten or cement mortar can be used in protective layer 5.When mixed using microlith When solidifying soil, thickness is not less than 50mm;When using cement mortar, thickness is not less than 20mm.
Before pouring hypogee pit body, draining pump cable and pipeline 21 are cut off, is filled out of casing 31 or hole fill out grade immediately With sandstone 13, Reperfu- sion cheats inner concrete 14, finally sealed casing 31 or hole, as shown in Fig. 2, suction pump 2 is cut off draining It is discarded after pump cable and pipeline 21 in precipitation hole 1, into precipitation hole 1, paving fills out certain thickness graded sand and stone 13 immediately, then pours It builds concrete to precipitation and cheats hole top, and preferably use rapid hardening with 32 sealing sleeve pipe 31 of accelerated cement or hole, accelerated cement 32 rapidly Type or retardation setting type waterproofing and leakage-stopping are precious.May be not yet pre-hardening because cheating inner concrete in sealing sleeve pipe, it is therefore, close using accelerated cement Feng Shi, viscosity, group's size should determine according to field condition;Meanwhile upper surface should maintain an equal level with cover board, in favor of waterproof layer It is laid with and cheats waterproof layer 6 at the top of one of precipitation hole of hole top laying in precipitation and cover precipitation hole, taken with surrounding pit body bottom waterproof layer 4 It connects, constitutes closure waterproof layer.Paving fills out graded sand and stone in precipitation is cheated, and then pours hole inner concrete, and graded sand and stone dosage is overall 20% of product not less than precipitation hole total measurement (volume);The meaning of graded sand and stone is: as a kind of water storage level, residual is accumulated in accumulation hole Water leaking-in before water and concreting influences the pouring quality of concrete to guarantee ponding and water leaking-in not.In precipitation hole Casting concrete is laid with precipitation hole top waterproof layer and overlaps with pit body bottom waterproof layer, pour pit body to pit body shaft bottom plane Structural concrete 7.The concrete material poured in pit body structural concrete 7 and dewatering well is identical.Such as waterproof layer overlap It is contaminated, before precipitation cheats hole top waterproof layer and hole bottom waterproof layer overlap joint, preferably pit body bottom waterproof layer overlap is carried out clear It reason and is dried, the method for drying process includes with sponge sucks in water, blowtorch or spray gun baking, heat gun heating and dehumidification etc. are arranged It applies.Supplement is laid with protective layer after waterproof layer overlap joint, and pea gravel concreten or cement mortar can be used in protective layer.When using microlith coagulation When native, thickness is not less than 50mm;When using cement mortar, thickness is not less than 20mm.
Above-mentioned, although specific embodiments of the present invention have been described, not to the limit of the scope of the present invention System, for some technology contents well known to those of ordinary skill in the art, details are not described herein again, and one of ordinary skill in the art answer This understands that based on the technical solutions of the present invention, those skilled in the art do not need to make the creative labor and can make Various modifications or changes still within protection scope of the present invention.

Claims (7)

1. pit body waterproof construction precipitation processing method in hypogee under a kind of water resource enriched environment, which is characterized in that including with Lower step:
Step a. is cheated in pit body bottom setting precipitation, and suction pump is arranged in hole in precipitation;
Step b. precipitation hole top sets cover board, the prefabricated casing of cover plate central or reserving hole, suction pump cable and drainpipe from set It is pierced by pipe or hole;Pit body bottom waterproof layer is laid with to casing or the closing in of hole periphery;Protective layer is laid with to the pit body Bottom waterproof layer makees insulation blocking;
Before step c. pours hypogee pit body, the drainpipe and cable of suction pump are cut off, suction pump is retained in precipitation hole;
Step d. is filled into precipitation hole from cover plate central casing or hole and is filled out graded sand and stone;
From cover plate central casing or hole, then the casting concrete into precipitation hole uses rapid hardening water to pit body bottom plane to step e. Mud seal cover board center sleeve or hole maintain an equal level with cover board upper surface;
Step f. is laid with the waterproof layer of cover plate central casing or hole position and overlaps with pit body bottom waterproof layer;
Step g. pours pit body structural concrete;
In the step a after precipitation, which is cheated, to be arranged, hole foot mat is spread in precipitation is cheated immediately and builds retaining wall, and smears earth-retaining sand Slurry or concrete.
2. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 1, It is characterized in that, the protective layer uses pea gravel concreten or cement mortar.
3. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 2, It is characterized in that, for the protective layer when using pea gravel concreten, thickness is not less than 50mm;When using cement mortar, Thickness is not less than 20mm.
4. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 1, It is characterized in that, the precipitation hole depth is not less than the suction pump height+100mm.
5. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 1, It is characterized in that, 20% of total volume not less than the total measurement (volume) that the precipitation is cheated of the graded sand and stone.
6. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 1, It is characterized in that, before the step f further includes overlap joint, step that pit body bottom waterproof layer overlap is cleared up and is dried Suddenly.
7. pit body waterproof construction precipitation processing method in hypogee under water resource enriched environment according to claim 1, It is characterized in that, the pit body is sump, elevator, a kind of in cushion cap foundation well.
CN201710093450.3A 2017-02-21 2017-02-21 Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment Active CN106894431B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710093450.3A CN106894431B (en) 2017-02-21 2017-02-21 Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710093450.3A CN106894431B (en) 2017-02-21 2017-02-21 Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment

Publications (2)

Publication Number Publication Date
CN106894431A CN106894431A (en) 2017-06-27
CN106894431B true CN106894431B (en) 2019-08-27

Family

ID=59185060

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710093450.3A Active CN106894431B (en) 2017-02-21 2017-02-21 Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment

Country Status (1)

Country Link
CN (1) CN106894431B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110925018B (en) * 2019-12-02 2021-06-25 河南科技大学 Pump room construction method and pump room construction dewatering system in tunnel connection channel
CN111764396A (en) * 2020-07-07 2020-10-13 中建一局集团建设发展有限公司 Construction method for water-rich stratum pit-in-pit
CN113832952A (en) * 2021-09-25 2021-12-24 浙江省浙南综合工程勘察测绘院有限公司 Soft soil foundation reinforcing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101768976A (en) * 2009-12-29 2010-07-07 中建城市建设发展有限公司 Base pit dewatering and water saving device and construction method thereof
CN102433886A (en) * 2011-09-27 2012-05-02 天津住宅集团建设工程总承包有限公司 Construction method for adding water lowering well in water collecting well
CN103161172A (en) * 2012-05-29 2013-06-19 中国二十二冶集团有限公司 Elevator shaft bottom precipitation construction method
CN204059380U (en) * 2014-08-28 2014-12-31 青岛海川建设集团有限公司 Deep-well precipitation well head well-sealing device in underground garage foundation ditch
CN104711994A (en) * 2015-01-27 2015-06-17 江苏省华建建设股份有限公司 Foundation pit deep well rainfall and plugging construction method
JP2015166546A (en) * 2014-02-13 2015-09-24 鹿島建設株式会社 Underground water control method and system
CN105804105A (en) * 2016-04-11 2016-07-27 任江涛 Precipitation well, well sealing structure for precipitation well and well covering burying and sealing method for precipitation well

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101768976A (en) * 2009-12-29 2010-07-07 中建城市建设发展有限公司 Base pit dewatering and water saving device and construction method thereof
CN102433886A (en) * 2011-09-27 2012-05-02 天津住宅集团建设工程总承包有限公司 Construction method for adding water lowering well in water collecting well
CN103161172A (en) * 2012-05-29 2013-06-19 中国二十二冶集团有限公司 Elevator shaft bottom precipitation construction method
JP2015166546A (en) * 2014-02-13 2015-09-24 鹿島建設株式会社 Underground water control method and system
CN204059380U (en) * 2014-08-28 2014-12-31 青岛海川建设集团有限公司 Deep-well precipitation well head well-sealing device in underground garage foundation ditch
CN104711994A (en) * 2015-01-27 2015-06-17 江苏省华建建设股份有限公司 Foundation pit deep well rainfall and plugging construction method
CN105804105A (en) * 2016-04-11 2016-07-27 任江涛 Precipitation well, well sealing structure for precipitation well and well covering burying and sealing method for precipitation well

Also Published As

Publication number Publication date
CN106894431A (en) 2017-06-27

Similar Documents

Publication Publication Date Title
CN106894431B (en) Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment
CN104988955B (en) The anti-row's convolution waterproof system of ultra-deep basement and construction method
CN107190844A (en) The waterproof and water drainage system and construction method of a kind of basement bottom board and exterior wall
CN107574842A (en) Basement post-pouring zone advance water stop construction method
CN105951893A (en) Uplift pile head node waterproof structure and construction method thereof
CN104652495A (en) Waterproof construction process for joint of inner support upright post of foundation pit and bottom plate
CN108775009A (en) A kind of measure method preventing grooving spillage and leak
CN102776897B (en) Wash apron anti-settling anti-cracking construction method and structure
CN106245688B (en) One kind prevention basement water leakage of floor constructing structure and its construction technology
RU2634912C1 (en) Method of arranging driven pile in punched well in weak water-saturated soils (versions)
CN110776293A (en) Oil-seepage-preventing concrete construction method for oil stain collecting tank
CN106638642B (en) A kind of hypogee pit body waterproof construction precipitation processing method
CN109779287A (en) Microdilatancy water-proof emulsion construction technology
CN109098187A (en) A kind of method of basement room heart backfilling material
CN108678029A (en) A kind of hills rich water area basement guarded drainage construction method near a river
CN106499070A (en) The construction method of connecting sewing between assembled architecture component and component
CN108755696A (en) A kind of rapid construction of pit earthwork at raining season method
CN106884436A (en) A kind of construction method of the waterproof connecting structure of foundation ditch uplift pile and structure base slab
CN106638544A (en) Anti-seepage and anti-cracking construction method for ultra-large reinforced concrete bio-oxidation pond in cold area
CN208380086U (en) A kind of toilet internal drainage standpipe through-flooring structure
CN108867709A (en) A kind of waterproofing for basement method
CN207331699U (en) One kind cheats reinforced concrete barricade composite supporting construction in hole
CN203360969U (en) Express way reconstruction and extension engineering central median drainage system
CN110439014A (en) A kind of underground stratiform discharge structure and its construction method
CN103498476B (en) Major-diameter hole-forming pile pier foundation and net foundation slab reverse building construction method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 262700 Shandong city in Weifang Province, Shouguang City, Taiwan town government West 2000 meters

Applicant after: Hongyuan Waterproof Technology Group Co., Ltd.

Applicant after: Weifang Hongyuan Waterproof Engineering Co., Ltd.

Address before: 262700 Shandong city in Weifang Province, Shouguang City, Taiwan town government West 2000 meters

Applicant before: Weifang Hongyuan Waterproof Material Co., Ltd.

Applicant before: Weifang Hongyuan Waterproof Engineering Co., Ltd.

GR01 Patent grant
GR01 Patent grant