CN115521113A - Method for treating waste muck of pipe jacking in sandstone stratum - Google Patents
Method for treating waste muck of pipe jacking in sandstone stratum Download PDFInfo
- Publication number
- CN115521113A CN115521113A CN202211259104.5A CN202211259104A CN115521113A CN 115521113 A CN115521113 A CN 115521113A CN 202211259104 A CN202211259104 A CN 202211259104A CN 115521113 A CN115521113 A CN 115521113A
- Authority
- CN
- China
- Prior art keywords
- jacking
- waste
- muck
- sandstone
- parts
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for treating waste residue soil of sandstone stratum pipe jacking, which comprises the steps of uniformly mixing the waste residue soil of sandstone stratum pipe jacking, cement, fly ash, mineral powder and water, adding an additive, uniformly stirring, and standing for 20-30 minutes to obtain a controllable low-strength material; wherein: the sandstone stratum pipe jacking waste residue soil, the cement, the fly ash, the mineral powder, the additive and the water are 2500-2700 parts, 300-340 parts, 180-220 parts, 70-90 parts, 4-8 parts and 800-900 parts by weight respectively. The sandstone stratum pipe-jacking waste slag soil is sealed (because other substances such as asphalt need to be paved on the controllable low-strength material), the pollution to soil caused by physical and chemical reactions of the sandstone stratum pipe-jacking waste slag soil in long-time air exposure is avoided, and the waste of land resources can be avoided, so that the treatment method is green and environment-friendly.
Description
Technical Field
The invention relates to the field of trenchless rock pipe jacking engineering, in particular to a method for treating waste muck of pipe jacking in a sandstone stratum.
Background
A large amount of waste muck is generated in the construction process of the rock jacking pipe, and how to treat the waste muck of the rock jacking pipe becomes an important difficult problem. The traditional waste muck treatment mode is that waste muck is accumulated by a waste dump, if the mode is adopted, on one hand, the waste muck occupies the land and wastes a large amount of land resources, and on the other hand, the environment is polluted, mainly because the engineering waste muck can generate a series of physical and chemical reactions along with the increase of accumulation time, a plurality of harmful substances are generated to permeate into the original soil, and the pollution to the soil is caused to a certain degree. Therefore, the research of a novel, green and high-benefit treatment measure for the waste residue soil of the rock jacking pipe is an urgent need for rock jacking pipe construction.
Disclosure of Invention
The invention aims to provide a method for treating waste muck of sandstone stratum pipe jacking, which solves the problems of land resource waste and environmental pollution caused by direct accumulation of the waste muck of the sandstone stratum pipe jacking.
The invention provides a method for treating waste residue soil of sandstone stratum pipe jacking, which comprises the steps of uniformly mixing the waste residue soil of sandstone stratum pipe jacking, cement, fly ash, mineral powder and water, adding an additive, uniformly stirring, and standing for 20-30 minutes to obtain a controllable low-strength material;
wherein: the sandstone stratum pipe jacking waste residue soil, the cement, the fly ash, the mineral powder, the additive and the water are 2500-2700 parts, 300-340 parts, 180-220 parts, 70-90 parts, 4-8 parts and 800-900 parts by weight respectively.
By adopting the technical scheme, on one hand, the waste muck of the sandstone stratum pipe jacking is changed into a useful substance, and the controllable low-strength material prepared together with the cement, the fly ash, the mineral powder, the additive and the water not only meets the performance requirement of the novel flow filler, but also can replace the existing filler, thereby changing waste into valuable; on the other hand, the sandstone stratum pipe-jacking waste muck is sealed (because other substances such as asphalt need to be paved on the controllable low-strength material), the pollution to soil caused by physical and chemical reactions of the sandstone stratum pipe-jacking waste muck in long-time air exposure is avoided, and the waste of land resources can also be avoided, so that the treatment method is green and environment-friendly.
In a preferred embodiment, the sandstone formation pipe-jacking waste muck is dried before use, so that the sandstone formation pipe-jacking waste muck is prevented from being easily dispersed due to moisture contained in the sandstone formation pipe-jacking waste muck.
As a preferred embodiment, the sandstone formation pipe-jacking abandoned muck is crushed muck passing through a strongly weathered and moderately weathered sandstone formation pipe-jacking cutterhead.
As a preferable embodiment, the particle size range of the sandstone stratum pipe-jacking waste muck is 5-25 mm, and the controllable low-strength material can not be vacant after being paved and solidified and molded, so that the requirement of road use is met.
In a preferred embodiment, the cement is p.o42.5r portland cement for bonding the raw materials.
As a preferred embodiment, the fly ash is class F class I fly ash, which not only serves as a support, but also improves the road bed.
As a preferred embodiment, the mineral powder is S95 grade mineral powder, and the mineral powder mainly plays a role in filling gaps between the waste muck of the pipe jacking in the sandstone stratum, so that the strength and stability of the controllable low-strength material are enhanced, and the requirement of road use is met.
As a preferable embodiment, the additive is a coagulant, and the novel flow filler can meet the corresponding requirements only by using the coagulant, so that the manufacturing cost of the controllable low-strength material can be saved, and the novel flow filler is suitable for popularization and application.
In a preferable embodiment, the controllable low-strength material has the flowability of 200 mm-230mm, the bleeding rate of 2h is less than 5%, the setting time is 8-15 hours, the compressive strength of the controllable low-strength material is more than 1.6MPa when the controllable low-strength material is set for 28 days, and the elastic modulus is 70-85 MPa; has excellent performance, can be used as a filler, and is particularly applied to backfill of underground structures (such as pipe ditches, buildings and parking lots) and filling of underground spaces (waste pits and pit-to-filling).
In a preferred embodiment, the penetration resistance value of the controllable low-strength material at the time of initial setting is 2.5 to 3.5MPa, and the penetration resistance value at the time of final setting is 26 to 29MPa.
Drawings
Fig. 1 is a flowchart of a method for treating waste muck in pipe jacking in a sandstone formation disclosed in example 1.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The existing treatment mode aiming at the waste slag soil in the sandstone stratum pipe jacking is basically piled up in a waste site, not only is the waste of land resources caused, but also a series of physical and chemical reactions can occur after the waste is exposed in the air for a long time, so that the pollution of the land resources is caused, therefore, the existing treatment mode can not meet the green and environment-friendly idea advocated in the modern times, and a new, green and environment-friendly mode needs to be provided for treating the waste slag soil in the sandstone stratum pipe jacking.
Aiming at the problems existing in the existing treatment mode of sandstone stratum pipe-jacking waste muck, the inventor of the invention finds that after the waste muck is mixed with substances such as cement and the like according to a specific proportion, the prepared substances can meet the requirements of controllable low-strength materials, can be used as novel flow packing to replace compacted controllable low-strength materials, can change waste into valuable on the basis of realizing green environmental protection, and widens the application scene of the sandstone stratum pipe-jacking waste muck.
As used herein, the term "sandstone formation pipe-jacking abandoned muck" refers to crushing muck through a strongly and moderately weathered sandstone formation pipe-jacking cutterhead, wherein: the strongly weathered sandstone stratum is a sandstone stratum with most of the structure damaged, the mineral components remarkably changed, weathered fractures developed and a broken rock body, and mainly comprises quartz and feldspar, and the moderately weathered sandstone stratum is a sandstone stratum with the structure partially damaged, secondary minerals are accompanied with a joint surface, the rock body is cut into rock blocks, and the main components of the sandstone stratum are the quartz and the feldspar.
As used herein, the performance criteria for the controlled low strength material are shown in table 1.
TABLE 1 Performance indices of controlled Low Strength materials
| Fluidity (mm) | Bleeding rate of 2h | Setting time (h) | 28 days compressive strength (MPa) | Modulus of elasticity (MPa) |
| 200～230 | Less than 5 percent | Less than 15 | Greater than 1.6 | Greater than 70 |
As used herein, the "bleeding rate" is the ratio of the amount of bleeding to the water content of the concrete mix.
In the invention, the fluidity reflects the self-filling performance, the self-leveling performance and the self-compacting performance of the filler in the paving process, and the problem of engineering diseases caused by unqualified rolling and compacting quality can be effectively reduced without additional mechanical vibration and compaction. The fluidity of the controllable low-strength material prepared by the invention is between 200 and 230mm, so that the controllable low-strength material has good fluidity.
As used herein, the "setting time", also referred to as the setting time, refers to the time required for the mixture to transition from a plastic state to a hard state and reach a certain strength. For a controlled low strength material, the requirement of "strength" herein means sufficient to support the load of an adult.
The invention discloses a treatment method of waste residue soil of sandstone stratum pipe jacking, which comprises the steps of uniformly mixing the waste residue soil of sandstone stratum pipe jacking, cement, fly ash, mineral powder and water, adding an additive, uniformly stirring, and standing for 20-30 minutes to obtain a controllable low-strength material.
Under the action of cement, additives and water, the waste residue soil, the fly ash and the mineral powder of the top pipe of the sandstone stratum are sealed, and the requirement of the novel flow filler is met.
In the invention, the controllable low-strength material can be obtained only by standing for 20-30 minutes after uniform mixing, which indicates that the preparation time is short, the production efficiency can be improved, the time required by construction is shortened, and the method is worthy of popularization and application.
In the invention, the sandstone stratum push pipe waste muck can be directly used after being mined out without secondary processing, so that the processing cost can be saved, the processing steps and time can be saved, and the method is worthy of popularization and use.
In the invention, generally, the parts by weight of the waste residue soil of the pipe jacking of the sandstone stratum, the cement, the fly ash, the mineral powder, the additive and the water are respectively 2500-2700 parts, 300-340 parts, 180-220 parts, 70-90 parts, 4-8 parts and 800-900 parts; suitably 2600 to 2700 parts, 320 to 340 parts, 180 to 200 parts, 80 to 90 parts, 6 to 8 parts and 850 to 900 parts; more suitably 2660 parts, 320 parts, 200 parts, 80 parts, 6 parts and 850 parts.
In the invention, the additive can meet the requirement of early strength of the novel flow filler after being used in a small amount, thereby saving the manufacturing cost and being suitable for popularization and application.
In the invention, the waste residue soil of the sandstone stratum pipe jacking can be dried before use to remove water in the waste residue soil and avoid agglomeration of the waste residue soil, so that the mixture in the whole process is not uniform.
In the invention, the particle size range of the waste residue soil of the sandstone stratum pipe jacking is 5-25 mm, so that the mixing process is smoother, and the problems that the quality is influenced by larger gaps when the controllable low-strength material is solidified and formed are avoided.
In the present invention, the cement may be any general portland cement, such as: ordinary portland cement, portland slag cement, portland fly ash cement and the like, suitably, the cement is p.o42.5r portland cement, the relevant physical properties of which should satisfy GB 175-2007 "general portland cement"; for the purpose of adhesion.
In the invention, the fly ash is F-class I-grade fly ash, the related physical properties of the fly ash meet GB/T1596-2017 fly ash for cement and concrete, and the fly ash mainly plays a role in supporting.
In the invention, the mineral powder is S95 grade mineral powder, and the related physical properties of the mineral powder meet the national standard GB/T18046-2000 granulated blast furnace slag powder used in cement and concrete.
In the invention, the additive is a coagulant, and the controllable low-strength material prepared by the coagulant can meet the related requirements of the novel flow filler, so that the cost can be saved by adopting the method for treating the waste muck of the pipe jacking in the sandstone formation. In the present invention, the setting accelerator is not particularly required, and therefore, it can be realized by using a setting accelerator which is commercially available or manufactured by a manufacturer.
The product prepared by the invention meets the related performance requirements of the controllable low-strength material, and also has higher fluidity and self-compactness, wherein: the fluidity can reach 228mm.
The product prepared by the invention meets the relevant performance requirements of the controllable low-strength material, and the penetration resistance value when the initial setting time is reached is 2.5-3.5 MPa, and the penetration resistance value when the final setting time is 26-29 MPa, so that the controllable low-strength material prepared by the invention has good hardness and is not easy to damage when used as a filler.
As used herein, the "penetration resistance" is an index that comprehensively reflects the engineering properties of the soil. However, penetration is a destructive penetration, the mechanism of which is different from the strength deformation characteristics of foundation soil under load, and penetration resistance cannot be calculated as a design parameter into any formula of soil mechanics. Therefore, the method can be applied to the occasion of qualitative judgment, such as layer division according to relative hardness and softness; when the design parameters of the soil need to be obtained by adopting a static sounding test, a comparison data set of penetration resistance and the strength deformation index of the soil needs to be obtained through a comparison test by virtue of experience comparison, and then regression statistics is carried out to obtain an empirical formula. After obtaining the statistical data of the penetration resistance, the strength deformation index of the soil can be estimated by using an empirical formula. When the static sounding test data is required to be used for estimating the bearing capacity of the single pile, the penetration resistance and the single pile load test result are compared, the pile side friction resistance and the pile end resistance of the single pile can be estimated after the empirical coefficient is obtained, and then the bearing capacity of the single pile is calculated.
On one hand, the waste residue soil of the sandstone stratum pipe jacking is changed into a useful substance, and the controllable low-strength material prepared together with the cement, the fly ash, the mineral powder, the additive and the water not only meets the performance requirement of a novel flow filler, but also can replace the existing filler, thereby changing waste into valuable; on the other hand, the sandstone stratum pipe-jacking waste muck is sealed (because other substances such as asphalt need to be paved on the controllable low-strength material), the pollution to soil caused by physical and chemical reactions of the sandstone stratum pipe-jacking waste muck in long-time air exposure is avoided, and the waste of land resources can also be avoided, so that the treatment method is green and environment-friendly.
Examples
TABLE 2 sources of raw materials
| Starting materials | / | Manufacturer of the product |
| Mineral powder | S95 grade mineral powder | Henan Zhengzhou Long Ze |
| Fly ash | Class F class I fly ash | Henan Zhengzhou Long Ze |
| Cement | P.O42.5 general purpose portland cement | Henan Lanke environmental protection water purification material factory |
| Setting accelerator | WH-Z | Tianjin City Weihe technology |
Example 1
As shown in figure 1, 320g of cement, 80g of mineral powder, 200g of fly ash, 2664.7g of sandstone stratum pipe jacking waste residue soil and 850g of water are weighed, placed in a container, stirred uniformly, added with 6g of a coagulant, stirred uniformly, and placed for 20 minutes to obtain the controllable low-strength material, and various performance tests are carried out on the controllable low-strength material.
Example 2
Weighing 300g of cement, 70g of mineral powder, 180g of fly ash, 2500g of sandstone stratum pipe jacking waste muck and 800g of water, placing the materials in a container, uniformly stirring the materials, adding 4g of coagulant, uniformly stirring the materials, and placing the materials for 20 minutes to obtain the controllable low-strength material, and performing various performance tests on the controllable low-strength material.
Example 3
Weighing 310g of cement, 75g of mineral powder, 190g of fly ash, 2600g of waste residue soil of sandstone stratum jacking pipe and 850g of water, placing the materials in a container, uniformly stirring the materials, adding 6g of coagulant, uniformly stirring the materials, and placing the materials for 25 minutes to obtain the controllable low-strength material, and performing various performance tests on the controllable low-strength material.
Example 4
Weighing 330g of cement, 85g of mineral powder, 210g of fly ash, 2650g of sandstone stratum pipe jacking waste muck and 870g of water, placing the materials into a container, uniformly stirring the materials, adding 8g of coagulant, uniformly stirring the materials, placing the materials for 30 minutes to obtain the controllable low-strength material, and performing various performance tests on the controllable low-strength material.
Example 5
Weighing 340g of cement, 90g of mineral powder, 220g of fly ash, 2700g of sandstone stratum pipe jacking waste residue soil and 900g of water, placing the materials in a container, uniformly stirring the materials, adding 8g of coagulant, uniformly stirring the materials, and placing the materials for 30 minutes to obtain the controllable low-strength material, and performing various performance tests on the controllable low-strength material.
Now, various performance tests, including the properties such as fluidity, bleeding rate, setting time, compressive strength and elastic modulus, were performed on the controllable low-strength materials obtained in examples 1 to 5, and the results are shown in table 3.
(1) The detection method for evaluating the fluidity comprises the following steps:
the test method uses a 75mm x 150mm cylinder open at both ends filled with controlled low strength material and slump and measures its diameter in 2 to 4 seconds according to standard test method for CLSM flow measurement in specification astm d 6103.
(2) The detection method for evaluating the bleeding rate comprises the following steps:
designing a bleeding rate experiment according to JTG E30-2005 Highway engineering cement and cement concrete experiment regulations and relevant characteristics of the controllable low-strength material, adopting a bleeding rate standard test barrel, and measuring the 2h bleeding rate of the controllable low-strength material mixture according to relevant specification requirements.
(3) The detection method for evaluating the coagulation time comprises the following steps:
the test is combined with a method for evaluating the setting time of the mortar mixture in a domestic specification JGJ70-2009 building mortar basic method and a foreign specification ASTMD6024, and the standard meeting the setting time of the controllable low-strength material is defined. As the bearing capacity of the controllable low-strength material is different along with the hardening time, the indentation diameters of the falling balls are different, and the time from stirring to the indentation diameter of 76mm is specified as the setting time of the controllable low-strength material.
(4) The method for evaluating the uniaxial compression test comprises the following steps:
a cube sample with the thickness of 70.7 multiplied by 70.7mm is prepared by referring to a test method of cube compressive strength of JGJ70-2009 building mortar basic method, and the loading speed is controlled to be 0.25kN/s-1.5kN/s.
(5) The method for evaluating the elastic modulus test is as follows:
in the test, a standard prism test piece with the thickness of 70.7 multiplied by 0.7 multiplied by 210mm is prepared by referring to JGJ70-2009 building mortar basic method, and 6 test pieces need to be prepared in each test. The test steps are as follows: 3 test pieces are selected to measure the axial compressive strength of the test pieces, the test pieces are vertically arranged on a lower pressing plate and are aligned with the center, and then continuous and uniform loading is carried out, wherein the loading speed is 0.25-1.5kN/s. And taking the arithmetic mean value of the side values of the 3 test pieces as an axis compression resistance value, and discarding the maximum value and the minimum value when the difference value between the maximum value and the minimum value in the three measured values exceeds 20%, and selecting a middle value.
TABLE 3 results of testing the Properties of controlled Low Strength materials prepared in examples 1-5
In addition, the initial setting time and the final set penetration resistance of the controllable low-strength materials prepared in examples 1 to 5 according to the ASTMC403 method are respectively in the range of 2.5 to 3.5MPa and 26 to 29MPa.
As can be seen from Table 3, the materials prepared in examples 1 to 5 meet the requirements of controllable low-strength materials, and can be used as novel flow packing, so that the waste of land resources and environmental pollution caused by the existing direct accumulation are avoided, and the treatment method is environment-friendly and changes waste into valuable.
According to the treatment method disclosed by the invention, on one hand, the waste muck of the pipe jacking in the sandstone stratum is changed into a useful substance, and the controllable low-strength material prepared together with the cement, the fly ash, the mineral powder, the additive and the water not only meets the performance requirement of a novel flow filler, but also can replace the existing filler, so that the waste is changed into valuable; on the other hand, the sandstone stratum pipe-jacking waste muck is sealed (because other substances such as asphalt need to be paved on the controllable low-strength material), the pollution to the soil caused by the physical and chemical reaction of the sandstone stratum pipe-jacking waste muck exposed in the air for a long time is avoided, and the waste of land resources can also be avoided, so that the treatment method is green and environment-friendly.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The method for treating the waste residue soil of the sandstone stratum pipe jacking is characterized in that the waste residue soil of the sandstone stratum pipe jacking, cement, fly ash, mineral powder and water are uniformly mixed, added with an additive, uniformly stirred and then kept stand for 20-30 minutes to obtain a controllable low-strength material;
wherein: the sandstone stratum pipe jacking waste residue soil, the cement, the fly ash, the mineral powder, the additive and the water are 2500-2700 parts, 300-340 parts, 180-220 parts, 70-90 parts, 4-8 parts and 800-900 parts by weight respectively.
2. The method for treating the sandstone formation pipe-jacking waste muck as claimed in claim 1, wherein the sandstone formation pipe-jacking waste muck is subjected to a drying treatment before use.
3. The method for treating the sandstone formation pipe-jacking waste muck as claimed in claim 1, wherein the sandstone formation pipe-jacking waste muck is crushed muck passing through a strongly and moderately weathered sandstone formation pipe-jacking cutterhead.
4. The sandstone formation pipe-jacking abandoned muck treatment method according to any of claims 1 to 3, wherein the particle size range of the sandstone formation pipe-jacking abandoned muck is 5-25 mm.
5. The method for treating the waste muck of the pipe jacking in the sandstone stratum as claimed in claim 4, wherein the cement is P.O42.5R Portland cement.
6. The method for treating the waste muck of the sandstone formation pipe jacking according to claim 4, wherein the fly ash is F-class I-class fly ash.
7. The method for treating the waste muck of the sandstone formation pipe jacking according to claim 4, wherein the mineral powder is S95-grade mineral powder.
8. The method for treating the waste muck of the pipe jacking in the sandstone formation as claimed in claim 4, wherein the additive is a coagulant.
9. The method for treating the waste muck of the sandstone formation pipe jacking according to claim 4, wherein the flowability of the controllable low-strength material is 200-230mm, the bleeding rate of 2h is less than 5%, the setting time is 8-15 hours, the compressive strength of the controllable low-strength material after being set for 28 days is more than 1.6MPa, and the elastic modulus is 70-85 MPa.
10. The method for treating the waste muck of the sandstone formation pipe jacking according to claim 4, wherein the penetration resistance value when the initial setting time of the controllable low-strength material is reached is 2.5-3.5 MPa, and the penetration resistance value when the final setting time is 26-29 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259104.5A CN115521113A (en) | 2022-10-14 | 2022-10-14 | Method for treating waste muck of pipe jacking in sandstone stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259104.5A CN115521113A (en) | 2022-10-14 | 2022-10-14 | Method for treating waste muck of pipe jacking in sandstone stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115521113A true CN115521113A (en) | 2022-12-27 |
Family
ID=84701268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211259104.5A Pending CN115521113A (en) | 2022-10-14 | 2022-10-14 | Method for treating waste muck of pipe jacking in sandstone stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115521113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116354685A (en) * | 2023-02-27 | 2023-06-30 | 中铁第四勘察设计院集团有限公司 | Controllable low-strength material utilizing waste light concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013144269A (en) * | 2012-01-13 | 2013-07-25 | Nippon Steel & Sumikin Engineering Co Ltd | Method for treating slag-mixed soil |
| CN110776285A (en) * | 2019-09-24 | 2020-02-11 | 中电建生态环境集团有限公司 | Improved slag soil regeneration backfill material and preparation method thereof |
| CN112408913A (en) * | 2020-11-24 | 2021-02-26 | 中国地质大学（武汉） | Method for preparing low-strength material by using waste residue soil of jacking pipe and backfilling flexible pipeline |
| CN113264731A (en) * | 2021-05-26 | 2021-08-17 | 武汉理工大学 | Controllable low-strength backfill material and preparation method thereof |
| CN113979689A (en) * | 2021-09-28 | 2022-01-28 | 浙江大学 | Controllable low-strength material using engineering slurry and preparation method thereof |
-
2022
- 2022-10-14 CN CN202211259104.5A patent/CN115521113A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013144269A (en) * | 2012-01-13 | 2013-07-25 | Nippon Steel & Sumikin Engineering Co Ltd | Method for treating slag-mixed soil |
| CN110776285A (en) * | 2019-09-24 | 2020-02-11 | 中电建生态环境集团有限公司 | Improved slag soil regeneration backfill material and preparation method thereof |
| CN112408913A (en) * | 2020-11-24 | 2021-02-26 | 中国地质大学（武汉） | Method for preparing low-strength material by using waste residue soil of jacking pipe and backfilling flexible pipeline |
| CN113264731A (en) * | 2021-05-26 | 2021-08-17 | 武汉理工大学 | Controllable low-strength backfill material and preparation method thereof |
| CN113979689A (en) * | 2021-09-28 | 2022-01-28 | 浙江大学 | Controllable low-strength material using engineering slurry and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116354685A (en) * | 2023-02-27 | 2023-06-30 | 中铁第四勘察设计院集团有限公司 | Controllable low-strength material utilizing waste light concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Islam et al. | Effectiveness of fly ash and cement for compressed stabilized earth block construction | |
| Ukpata et al. | Compressive strength of concrete using lateritic sand and quarry dust as fine aggregate | |
| JP4962915B2 (en) | Manufacturing method of water retention block | |
| Elahi et al. | Effectiveness of saw dust ash and cement for fabrication of compressed stabilized earth blocks | |
| Buritatum et al. | Durability improvement of cement stabilized pavement base using natural rubber latex | |
| Fundi et al. | Performance of interlocking laterite soil block walls under static loading | |
| KR101692691B1 (en) | A eco-friendly concrete retaining wall block composition and eco-friendly concrete retaining wall blocks manufactured by using the same | |
| Islam et al. | Strength and durability characteristics of cement-sand stabilized earth blocks | |
| CN113402228A (en) | Liquefied consolidated soil and preparation method thereof | |
| Assiamah et al. | Utilization of sawdust ash as cement replacement for landcrete interlocking blocks production and mortarless construction | |
| Arum et al. | Partial replacement of portland cement by granulated cupola slag—sustainable option for concrete of low permeability | |
| Mehrani et al. | Utilization of Rubber powder of waste tyres in foam concrete | |
| Khan et al. | Behavior of crumb rubber concrete | |
| CN115521113A (en) | Method for treating waste muck of pipe jacking in sandstone stratum | |
| CZ20002731A3 (en) | Chemical agent for enhancing technical properties of soil | |
| CN113582641A (en) | Inorganic mixture prepared from construction waste recycled aggregate and preparation method thereof | |
| KR20110045862A (en) | Lightweight flowable fills and reclamation method using thereof | |
| CN101161602A (en) | Brick made of scrap and method of manufacture | |
| Mujedu et al. | An investigation on the suitability of the broken tiles as coarse aggregates in concrete production | |
| Ho et al. | One dimensional compressibility characteristics of clay stabilised with cement-rubber chips | |
| CN112374836A (en) | Cement stabilized macadam gel material and preparation method and application thereof | |
| Oba et al. | Characterisation of saw dust ash–Quarry dust bituminous concrete | |
| JP7411319B1 (en) | Soil cement manufacturing method | |
| Asrah et al. | Utilization of waste materials in the production of interlocking compressed earth brick | |
| Abd El-Aziz et al. | Enhancing stability of clayey subgrade materials with cement kiln dust stabilization |
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 |