[go: up one dir, main page]

CN112459007A - Microbial improved river bank protection device and construction method - Google Patents

Microbial improved river bank protection device and construction method Download PDF

Info

Publication number
CN112459007A
CN112459007A CN202011474242.6A CN202011474242A CN112459007A CN 112459007 A CN112459007 A CN 112459007A CN 202011474242 A CN202011474242 A CN 202011474242A CN 112459007 A CN112459007 A CN 112459007A
Authority
CN
China
Prior art keywords
grouting
slurry
bank protection
pipe
outlet
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.)
Pending
Application number
CN202011474242.6A
Other languages
Chinese (zh)
Inventor
徐国宾
杨德锋
董帅
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.)
Tianjin University
Original Assignee
Tianjin University
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 Tianjin University filed Critical Tianjin University
Priority to CN202011474242.6A priority Critical patent/CN112459007A/en
Publication of CN112459007A publication Critical patent/CN112459007A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Revetment (AREA)

Abstract

本发明公开了一种微生物改良河道护岸装置及施工方法:装置包括动力输送系统和浆液扩散系统;动力输送系统包括储浆池、浆液、输送软管、蠕动泵和注浆阀门,蠕动泵进口与储浆池连接,每个注浆阀门进口连接蠕动泵出口;浆液扩散系统包括与注浆阀门等数量的注浆管;注浆管侧壁布置出浆孔,外壁包裹土工布,底部均为封口式,顶部均与其所对应注浆阀门出口连接的输送软管连接。施工方法:培养矿化细菌悬浊液,配置胶结液;注浆管侧壁包裹土工布,垂直压入河道护岸岸坡;打开注浆阀门,开启蠕动泵,向注浆管中泵送矿化细菌悬浊液后,泵送胶结液;直到河道护岸岸坡满足改良要求为止。本发明装置简单,施工无需破坏原有河道护岸,施工成本低,节能环保。

Figure 202011474242

The invention discloses a microbial improvement river channel bank protection device and a construction method: the device includes a power conveying system and a slurry diffusion system; the power conveying system includes a slurry storage tank, a slurry, a conveying hose, a peristaltic pump and a grouting valve. The grout storage tank is connected, and the inlet of each grouting valve is connected to the outlet of the peristaltic pump; the grout diffusion system includes grouting pipes as many as the grouting valves; the grout holes are arranged on the side wall of the grouting pipe, the outer wall is wrapped with geotextile, and the bottom is sealed The top is connected with the delivery hose connected to the outlet of the corresponding grouting valve. Construction method: Cultivate the mineralized bacterial suspension and configure the cementitious liquid; wrap the geotextile on the side wall of the grouting pipe and press it vertically into the bank slope of the river bank protection; open the grouting valve, turn on the peristaltic pump, and pump the mineralization into the grouting pipe After the bacterial suspension, the cementing solution is pumped; until the bank slope of the river revetment meets the improvement requirements. The device of the invention is simple, the construction does not need to destroy the original river bank protection, the construction cost is low, and the energy saving and environmental protection are realized.

Figure 202011474242

Description

Microbial improved river bank protection device and construction method
Technical Field
The invention relates to the technical field of river bank protection engineering, in particular to a microbial improved river bank protection device and a construction method.
Background
The traditional river bank protection is usually focused on the stability and flood control effect of the river bank, and cement and other methods for hardening the bank protection are mostly adopted. In the method, a large amount of cement and river sand are used, so that the environment is greatly influenced, the hardened revetment completely obstructs the interaction of an ecological system between a river bank and a river bed, and the ecological system of the river bank is greatly damaged. In addition, the conventional design of hard bank revetments may also create a shift to the problem of erosion and corrosion damage to the downstream banks. In the aspect of modern sustainability development, the sustainability of a river channel ecosystem must be considered for river development and treatment work. Therefore, it is very important to improve the ecological type of river bank protection. The ecological river bank protection is a river bank protection device which can ensure that river water and aquatic organisms can mutually permeate soil while giving consideration to the stability of the river bank; and can also provide supplies for surface water and underground water in a certain area. In recent years, the technology of generating calcium carbonate (MICP) by microorganism induction is widely researched, and the microorganism grouting solidification technology has the advantages of good fluidity, small grouting pressure, good controllability, few byproducts, environmental protection and the like, and is considered to be a technology with sustainable development potential. The technology is applied to the improvement of river bank protection and ecological bank protection restoration, so that a full ecological structure is adopted in a river bank protection system, the effects of scour resistance and flood control can be exerted by the bank protection structure, and the ecological and environment-friendly values can be comprehensively embodied.
Therefore, the technology of generating calcium carbonate by microbial induction is adopted to improve the river bank protection, and a microbial improved river bank protection device and a construction method are developed, so that the method has important significance for the comprehensive application of the development and treatment of the river bank protection.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a microbial improved river bank protection device and a construction method, which can realize the stability and flood control effect of river bank protection, can also reflect ecological sustainable development and build a good river bank ecosystem. The device is simple, the original river bank protection is not required to be damaged in the construction process, the construction cost is low, the construction technology is energy-saving and environment-friendly, a good improvement effect can be achieved in a short period, and the device is suitable for popularization and use.
The purpose of the invention can be realized by the following technical scheme.
The invention relates to a microbial improved riverway bank protection device, which comprises a power transmission system and a slurry diffusion system, wherein an outlet of the power transmission system is connected with an inlet of the slurry diffusion system;
the power conveying system comprises a slurry storage tank, slurry, conveying hoses, peristaltic pumps and grouting valves, wherein the slurry is contained in the slurry storage tank, inlets of the peristaltic pumps are connected with the slurry storage tank through the conveying hoses, at least one grouting valve is arranged, and each grouting valve inlet is connected with an outlet of the peristaltic pump through the conveying hose;
the slurry diffusion system comprises at least one grouting pipe, the number of the grouting pipes is equal to that of the grouting valves, and the grouting pipes correspond to the grouting valves one by one; and slurry outlet holes are uniformly distributed in the side wall of each grouting pipe, geotechnical cloth is wrapped on the outer side of the pipe wall of each grouting pipe, the bottom of each grouting pipe is in a sealing type, and the top of each grouting pipe is connected with a conveying hose connected with the outlet of the corresponding grouting valve.
The peristaltic pump is used for conveying the slurry in the slurry storage tank to the slurry diffusion system, and the peristaltic pump adopts a liquid power conveyor or other liquid power conveyors according to different conditions and requirements.
The slurry is mineralized bacterium suspension or cementing liquid; the culture solution of the mineralized bacteria comprises yeast extract, TRIS and ammonium sulfate; the components of the cementing liquid are CaCl with equal mass concentration2A mixture of the solution and urea.
Every slip casting bottom all sets up to the cusp form, every the slip casting all perpendicularly impresses in the river course shore protection bank slope, and the slip casting pipe that is close more from the bank boundary is shorter.
And the connection mode between each grouting pipe and the conveying hose connected with the outlet of the corresponding grouting valve adopts sleeve sealing connection, or adopts screw fixing connection and bonding methods, or is connected in other communication modes.
The sleeve pipe inner wall entrance department all is provided with the joint groove, every slip casting valve exit linkage's conveying hose's exit outer wall and every slip casting pipe top entrance outer wall all is provided with the buckle with joint groove sealing connection.
The purpose of the invention can be realized by the following technical scheme.
The construction method of the microbial improved river bank protection device comprises the following steps:
the first step is as follows: culturing the mineralized bacterium suspension to prepare a cementing solution;
the second step is that: the side wall of each grouting pipe is wrapped with geotextile, then the grouting pipe is vertically pressed into a bank slope of the river bank protection to be improved, and a transmission hose and the grouting pipe are hermetically connected through a sleeve;
the third step: opening a grouting valve, starting a peristaltic pump, pumping mineralized bacterium suspension into a grouting pipe under pressure, standing for a set time, continuing pumping cementing liquid, and then standing for a set time;
the fourth step: and repeating the third step until the improvement of the river bank protection bank slope meets the design requirement.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
according to the invention, a plurality of grouting pipes are pressed into the bank slope of the river bank protection, and mineralized bacteria and cementing liquid are injected into the sand soil of the river bank protection in a grouting manner through a power transmission system. Mineralized bacteria induce calcium carbonate precipitation, so that the aim of improving the river bank protection soil is fulfilled, and the river bank protection has stability and erosion resistance. The calcium carbonate precipitation induced by the microorganisms bonds the sand particles on the river bank, but certain pores exist, so that the mutual permeation of river water and aquatic organisms and soil can be realized, the river can be self-purified, and the aim of protecting the river ecological system is fulfilled. The construction process of the device does not need to destroy the original river bank protection, is simple to operate, greatly shortens the construction period, and has the characteristics of low construction cost, low price and high economic benefit. The grouting pipe does not need to be drawn out after the construction is finished, the grouting pipe can be continuously used as a supporting structure of the river bank protection, and the grouting pipe can be restarted if the projects such as repair are needed in the later period.
Drawings
FIG. 1 is a schematic view of the microbial riverway bank protection improvement device of the invention;
fig. 2 is a cross section a-a of fig. 1.
Fig. 3 is a cross section B-B of fig. 1.
Fig. 4 is a schematic view of a casing pipe at the junction of a power transmission system and a slurry diffusion system of the microbial riverway bank protection device.
Reference numerals: 21, a pulp storage pool; 22, slurry; 23 a delivery hose; a 24 peristaltic pump; 25 grouting valve; 31 a sleeve; 311 a clamping groove; 312, buckling; 32 grouting pipes; 33, a pulp outlet hole; 34 geotextile; 40 river bank protection bank slope; 50 river water.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. Other embodiments, which can be derived by those skilled in the art from the description of the embodiments given herein without any creative effort, shall fall within the protection scope of the present invention.
Numerous specific details are set forth in the following description to provide a thorough understanding of embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar structural elements or elements having like or similar functionality throughout, but which may be practiced otherwise than as described. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated otherwise, the terms "disposed", "connected", "communicating", "pressed-in", etc. are to be understood broadly, for example, such as a fixed connection, a detachable connection, or an integral connection; can be mechanically connected or mutually communicated; they may be directly connected or indirectly connected through an intermediate, or they may be connected through the inside of two structures or may be in an interaction relationship between the two structures. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention relates to a microbial improved riverway bank protection device, which comprises a power transmission system and a slurry diffusion system, wherein an outlet of the power transmission system is connected with an inlet of the slurry diffusion system. As shown in fig. 1 to 4, the direction of the arrow in the figure is the slurry flow or diffusion direction.
The power transmission system comprises a slurry storage tank 21, slurry 22, a conveying hose 23, a peristaltic pump 24 and a grouting valve 25. The slurry storage tank 21 is used for containing slurry 22, the inlet of the peristaltic pump 24 is connected with the slurry storage tank 21 through a conveying hose 23, at least one grouting valve 25 is arranged, and the inlet of each grouting valve 25 is connected with the outlet of the peristaltic pump 24 through the conveying hose 23.
Wherein, the peristaltic pump 24 is used for conveying the slurry 22 in the slurry storage tank 21 to the slurry diffusion system, and the peristaltic pump 24 adopts a liquid power conveyor or other liquid power conveyors according to different situations and requirements. The slurry 22 is a mineralized bacterial suspension or a cementing liquid. The culture solution of mineralized bacteria comprises yeast extract, TRIS and ammonium sulfate, such as 20g/L yeast extract, 17.5g/L TRIS and 10g/L ammonium sulfate. The components of the cementing liquid are CaCl with equal mass concentration2A mixture of the solution and urea.
The slurry diffusion system comprises at least one grouting pipe 32, and the number of the grouting pipes 32 is equal to that of the grouting valves 25 and corresponds to that of the grouting valves one to one. A plurality of grout outlet holes 33 are uniformly distributed on the side wall of each grouting pipe 32, and the grout 22 permeates into the river bank protection sandy soil through the grout outlet holes 33 to solidify the bank protection, so that the river bank protection is solidified by microorganism-induced calcium carbonate. The slurry outlet holes 33 are not required to be uniformly arranged on the wall of the grouting pipe 32, and can be adjusted according to the actual situation of the river bank protection bank slope 40, for example, the river bank protection bank slope 40 may have different soil layer distributions, or different sand particle sizes, so as to change the distribution situation of the slurry outlet holes 33 on the grouting pipe 32.
The outer side of the pipe wall of each grouting pipe 32 is tightly wrapped with geotextile 34 so as to prevent sand and the like in river bank protection from entering the grouting pipes 32 and causing unnecessary blockage of the grout outlet 33. The grouting pipes 32 are arranged in the river course revetment bank slope and are vertically pressed into the river course revetment bank slope 40, and the shorter the grouting pipe 32 is, the closer to the boundary of the water bank. The bottom of each grouting pipe 32 is in a sealing type and is in a pointed shape, and the purpose is to easily insert the grouting pipe 32 into the river bank protection bank slope 40. The top of each grouting pipe 32 is connected with the conveying hose 23 connected with the outlet of the corresponding grouting valve 25.
The connection mode between each grouting pipe 32 and the conveying hose 23 connected with the outlet of the corresponding grouting valve 25 adopts the sleeve 31 for sealing connection, and movable disassembly can be realized, or the conveying hose 23 and the grouting pipe 32 can be communicated by adopting methods such as screw fixed connection, bonding and the like, or other communication modes. The department all is provided with joint groove 311 in sleeve 31 inner wall entrance and exit, the delivery hose 23's of every slip casting valve 25 exit linkage exit outer wall and every slip casting pipe 32 top entrance outer wall all is provided with buckle 312 for with joint groove 311 sealing connection, sealed essence lies in preventing the thick liquid 22 in the slip casting pipe 32 and the external quality exchange between, except adopting joint groove 311 and buckle 312 to seal, can also adopt other modes to realize sealed effect, for example set up flexible gasket at sealed position, or adopt sealed glue etc. reduce by sealed fluidic leakage channel, realize sealedly.
The construction method of the microbial improved river bank protection device comprises the following steps:
the first step is as follows: culturing mineralized bacteria suspension according to the microorganism culture method in the manual of microorganism culture, and culturing by adopting an industrial microorganism culture method if large-scale engineering is available; and preparing a cementing liquid.
The second step is that: the side wall of each grouting pipe 32 is wrapped by geotextile 34, then the grouting pipe 32 is vertically pressed into a bank slope 40 of the river course revetment to be improved, and the transmission hose 23 and the grouting pipe 32 are connected in a sealing way through a sleeve 31.
The third step: and opening the grouting valve 25, starting the peristaltic pump 24, pumping the mineralized bacterium suspension into the grouting pipe 32 under pressure, standing for a set time, continuing pumping the cementing liquid, and then standing for a set time to enable the slurry to be diffused in the bank slope of the river bank protection.
The fourth step: and repeating the third step until the improvement of the river bank protection bank slope 40 meets the design requirement.
The grouting valve 25 is closed when the grouting operation is not performed. The grouting pipe 32 is unnecessary to be pulled out after grouting, can be continuously left in the river bank protection, can play a continuous supporting role, and can be directly used as a prefabricated supporting structure of the river bank protection, so that the structural strength and the stability of the river bank protection are further improved, and the service life of the river bank protection is prolonged. As a preferable scheme, the river bank protection can be a sandy soil bank slope.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise functions and operations described above, and that the above-described embodiments are illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims (7)

1. The microbial improved riverway bank protection device is characterized by comprising a power transmission system and a slurry diffusion system, wherein an outlet of the power transmission system is connected with an inlet of the slurry diffusion system;
the power conveying system comprises a slurry storage tank (21), slurry (22), conveying hoses (23), peristaltic pumps (24) and grouting valves (25), wherein the slurry (22) is contained in the slurry storage tank (21), the inlets of the peristaltic pumps (24) are connected with the slurry storage tank (21) through the conveying hoses (23), at least one grouting valve (25) is arranged, and the inlet of each grouting valve (25) is connected with the outlet of the peristaltic pump (24) through the conveying hose (23);
the slurry diffusion system comprises at least one grouting pipe (32), the number of the grouting pipes (32) is equal to that of the grouting valves (25), and the grouting pipes correspond to the grouting valves one by one; every grout outlet (33) has been put to the equipartition on slip casting pipe (32) lateral wall, every the geotechnological cloth (34) have all been wrapped up in the slip casting pipe (32) pipe wall outside, every slip casting pipe (32) bottom is the enclosed type, and the top all is connected rather than the conveying hose (23) of slip casting valve (25) exit linkage that corresponds.
2. The microbial modified riverway bank protection device according to claim 1, wherein the peristaltic pump (24) conveys the slurry (22) in the slurry storage tank (21) to a slurry diffusion system, and the peristaltic pump (24) adopts a liquid power conveyor or other liquid power conveyors according to different conditions and requirements.
3. The device for microbially modified riverway revetment according to claim 1, wherein the slurry (22) is a suspension of mineralized bacteria or a cementing liquid; the culture solution of the mineralized bacteria comprises yeast extract, TRIS and ammonium sulfate; the components of the cementing liquid are CaCl with equal mass concentration2A mixture of the solution and urea.
4. The microbial riverway bank protection device according to claim 1, wherein the bottom of each grouting pipe (32) is arranged to be pointed, each grouting pipe (32) is vertically pressed into a riverway bank protection bank slope (40), and the grouting pipes (32) which are closer to the boundary of a water bank are shorter.
5. The microbial riverway bank protection device is characterized in that each grouting pipe (32) is connected with the conveying hose (23) connected with the outlet of the corresponding grouting valve (25) in a sealing mode through a sleeve (31), or is fixedly connected through screws, adhered through bonding methods, or through other communication modes.
6. The microbial-modified river bank protection device according to claim 5, wherein the inlet and outlet of the inner wall of the casing (31) are provided with clamping grooves (311), and the outer wall of the outlet of the conveying hose (23) connected with the outlet of each grouting valve (25) and the outer wall of the inlet at the top of each grouting pipe (32) are provided with buckles (312) hermetically connected with the clamping grooves (311).
7. A construction method of a microbial improved river bank protection device is characterized by comprising the following steps:
the first step is as follows: culturing the mineralized bacterium suspension to prepare a cementing solution;
the second step is that: the side wall of each grouting pipe (32) is wrapped with geotextile (34), then the grouting pipe (32) is vertically pressed into a riverway bank protection bank slope (40) to be improved, and a transmission hose (23) and the grouting pipe (32) are connected in a sealing way through a sleeve (31);
the third step: opening a grouting valve (25), starting a peristaltic pump (24), pumping the mineralized bacterium suspension into a grouting pipe (32) under pressure, standing for a set time, continuing to pump the cementing liquid, and then standing for a set time;
the fourth step: and repeating the third step until the improvement of the river channel bank protection bank slope (40) meets the design requirement.
CN202011474242.6A 2020-12-14 2020-12-14 Microbial improved river bank protection device and construction method Pending CN112459007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011474242.6A CN112459007A (en) 2020-12-14 2020-12-14 Microbial improved river bank protection device and construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011474242.6A CN112459007A (en) 2020-12-14 2020-12-14 Microbial improved river bank protection device and construction method

Publications (1)

Publication Number Publication Date
CN112459007A true CN112459007A (en) 2021-03-09

Family

ID=74804282

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011474242.6A Pending CN112459007A (en) 2020-12-14 2020-12-14 Microbial improved river bank protection device and construction method

Country Status (1)

Country Link
CN (1) CN112459007A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114045834A (en) * 2021-12-03 2022-02-15 中国人民解放军陆军工程大学 Sand soil fast curing grouting pile forming device
CN114411655A (en) * 2021-12-29 2022-04-29 长春工程学院 A multistage sediment trapping device for soil and water conservation
CN118563842A (en) * 2024-07-04 2024-08-30 山东科技大学 A device and construction method for bottom protection based on silt solidification treatment of local seawater scouring

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649003A (en) * 2016-01-11 2016-06-08 河海大学 Reinforcing device for reinforcing sand foundation through combination of microorganisms with vacuum drainage and reinforcing method of reinforcing device
CN106894386A (en) * 2017-04-14 2017-06-27 上海勘测设计研究院有限公司 Construction system and construction method for reinforcing river course revetment
JP2018025032A (en) * 2016-08-10 2018-02-15 国立大学法人北海道大学 Coastal and riverside conservation method
CN108457242A (en) * 2018-01-25 2018-08-28 重庆大学 A kind of microorganism reef method of coastal waters chiltern bank slope
CN108589650A (en) * 2018-05-07 2018-09-28 浙江大学 One kind being based on the cured breakwater reinforcement means of microorganism
CN215105065U (en) * 2020-12-14 2021-12-10 天津大学 Microbial improvement river course shore protection device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649003A (en) * 2016-01-11 2016-06-08 河海大学 Reinforcing device for reinforcing sand foundation through combination of microorganisms with vacuum drainage and reinforcing method of reinforcing device
JP2018025032A (en) * 2016-08-10 2018-02-15 国立大学法人北海道大学 Coastal and riverside conservation method
CN106894386A (en) * 2017-04-14 2017-06-27 上海勘测设计研究院有限公司 Construction system and construction method for reinforcing river course revetment
CN108457242A (en) * 2018-01-25 2018-08-28 重庆大学 A kind of microorganism reef method of coastal waters chiltern bank slope
CN108589650A (en) * 2018-05-07 2018-09-28 浙江大学 One kind being based on the cured breakwater reinforcement means of microorganism
CN215105065U (en) * 2020-12-14 2021-12-10 天津大学 Microbial improvement river course shore protection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114045834A (en) * 2021-12-03 2022-02-15 中国人民解放军陆军工程大学 Sand soil fast curing grouting pile forming device
CN114045834B (en) * 2021-12-03 2023-06-20 中国人民解放军陆军工程大学 A rapid solidification grouting pile forming device for sandy soil
CN114411655A (en) * 2021-12-29 2022-04-29 长春工程学院 A multistage sediment trapping device for soil and water conservation
CN114411655B (en) * 2021-12-29 2024-04-12 长春工程学院 Multistage sand blocking device for soil and water conservation
CN118563842A (en) * 2024-07-04 2024-08-30 山东科技大学 A device and construction method for bottom protection based on silt solidification treatment of local seawater scouring
CN118563842B (en) * 2024-07-04 2025-03-21 山东科技大学 A device and construction method for bottom protection based on silt solidification treatment of local seawater scouring

Similar Documents

Publication Publication Date Title
CN112459007A (en) Microbial improved river bank protection device and construction method
CN105350517B (en) A kind of method of cyclic microorganism grouting and reinforcing ground
CN215105065U (en) Microbial improvement river course shore protection device
CN206616866U (en) Slip casting machine
CN201531019U (en) Energy-saving type split vacuum preloading jet device
CN108589650A (en) One kind being based on the cured breakwater reinforcement means of microorganism
CN201217819Y (en) Inflation type silt flushing device
CN213063596U (en) Synchronous double-slurry injection device
CN219298219U (en) Microorganism sand pile grouting device in shallow silt soft soil foundation
CN103806412A (en) Water leakage repair structure for water pool expansion joint
CN103485387B (en) Canal-irrigation-area pipe water delivery irrigation system
CN207633358U (en) A kind of prefabricated assembled pipe gallery jointing construction
CN111535306B (en) Microbial curing method and irrigation and drainage device suitable for marine soft soil foundation
CN204626611U (en) Tandem type concentrated seawater bottom delivery pipe structure
CN215630136U (en) A dry-dock siphon pumping system for immersed tubes
CN210127461U (en) Install conduit on reservoir draws to one side and contains
CN213571843U (en) A new type of water-saving and anti-seepage treatment device for irrigation canals in irrigation areas
CN205398987U (en) Washing machine detergents is duckbill valve mechanism for pump
CN206681070U (en) A kind of multi-functional discharge pump works
CN210946855U (en) Plugging device for dewatering well
CN210658362U (en) Construction structure for backfill grouting of lining pipeline of reservoir
CN207376700U (en) A kind of discharge pump works
CN111910590A (en) Anti-freezing and dredging gate and anti-freezing dredging method
CN201353443Y (en) A hydraulic control box culvert with double holes and equal outflow pressure
CN206646107U (en) Buried return stirring methane tank

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210309