CN111723327B - Calculation method and system for flow value of fresh-mixed solidified sludge - Google Patents
Calculation method and system for flow value of fresh-mixed solidified sludge Download PDFInfo
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- CN111723327B CN111723327B CN202010534805.XA CN202010534805A CN111723327B CN 111723327 B CN111723327 B CN 111723327B CN 202010534805 A CN202010534805 A CN 202010534805A CN 111723327 B CN111723327 B CN 111723327B
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The application discloses a method for calculating a flow value of fresh-mixed solidified sludge, which comprises the following steps: sampling the dredging sludge and measuring the initial water content w of the dredging sludge as a sample 0 The method comprises the steps of carrying out a first treatment on the surface of the Adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C; adding water to the added cement to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge; according to the free water content w of the solidified sludge in different fresh mixes f And the measured value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w can be fitted to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w thereof, thereby calculating a fresh-mixed solidification sludge flow value D. The method can well calculate the flow value of the fresh-mixed solidified sludge.
Description
Technical Field
The application relates to a calculation method and a calculation system for a flow value of fresh-mixed solidified sludge, and belongs to the technical field of dredging sludge resource utilization.
Background
In recent years, the yield of dredging sludge in China is rapidly increased, firstly, in order to improve the water quality of rivers, lakes and reservoirs, the bottom sludge of the polluted rivers, lakes and reservoirs needs to be dredged, such as ecological civilization construction, treatment action of 'ten water', black and odorous river course treatment, PPP river and lake comprehensive treatment and the like, and the dredging of the bottom sludge is involved, so that a large amount of dredging sludge is generated; secondly, in order to ensure the normal flood discharge capacity of the river and the lake and the smoothness of the inland and ocean channels, regular dredging is required for the river, the lake and the ocean channels, and a large amount of dredging sludge is generated; in addition, with the increasing engineering of ports, oceans and coasts in recent years, a large amount of ocean dredging sludge is also produced.
The dredging sludge has the characteristics of high water content, high clay content, poor drainage property, low strength and the like, is difficult to be directly used as engineering materials, and is extremely easy to cause environmental damage if abandoned everywhere. In order to realize the resource utilization of the dredging sludge, the prior mature technology is to add curing materials such as cement, thereby reducing the water content of the dredging sludge, improving the strength of the dredging sludge and forming the curing sludge. The solidified sludge is often used for the filling of roadbeds, foundations and artificial islands. However, the newly mixed solidified sludge is required to have certain fluidity for filling roadbed, foundation and artificial island, which is related to whether the pumping pouring construction can be smoothly implemented without the problems of pipe blockage, difficult pumping and the like. Therefore, fluidity of freshly mixed and solidified sludge becomes an important engineering index.
And for the flowability test of the newly mixed solidified sludge, the unified standard does not exist in China, and related engineering practices are few.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provides a method and a system for calculating the flow value of fresh-mixed solidified sludge, which can well calculate the flow value of fresh-mixed solidified sludge.
In order to achieve the above purpose, the application is realized by adopting the following technical scheme:
in a first aspect, the application provides a method for calculating a flow value of fresh-mixed solidified sludge, which comprises the following steps:
sampling the dredging sludge and measuring the initial water content w of the dredging sludge as a sample 0 ；
Adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C;
adding water to the added cement to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge;
according to the free water content w of the solidified sludge in different fresh mixes f And the measured value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w can be fitted to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w thereof, thereby calculating a fresh-mixed solidification sludge flow value D.
With reference to the first aspect, further, the initial water content w of the dredged silt as a sample 0 The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999.
With reference to the first aspect, further, the cement adding amount C is a percentage of the mass of the cement dry powder and the dry soil.
With reference to the first aspect, further, the slurry water content w c The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999.
With reference to the first aspect, further, the fresh-mixed solidified sludge flow value D and the free water content w of the fresh-mixed solidified sludge f The relation of the ratio of the total water content w is
With reference to the first aspect, further, a calculation formula of the total water content w of the freshly mixed and solidified sludge is w=w 0 +Cw c 。
With reference to the first aspect, further, the free water content w of the freshly mixed and solidified sludge f The calculation formula of (2) is w f ＝w-1.49C-0.25。
In a second aspect, the present application provides a system for estimating a flow value of fresh-mixed solidified sludge, the system comprising:
a first measurement module: for sampling the dredging sludge and determining the initial water content w of the dredging sludge as a sample 0 ；
And a determination module: for adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C;
a second measurement module: for adding water to cement added to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge;
and a calculation module: for setting the free water content w of the sludge according to the different fresh mixes f And the measured value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w can be fitted to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w thereof, thereby calculating a fresh-mixed solidification sludge flow value D.
In a third aspect, the application provides a calculation system for a flow value of fresh-mixed solidified sludge, which comprises a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is operative to perform the steps of any one of the methods described in the preceding claims in accordance with the instructions.
In a fourth aspect, a computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the preceding claims.
Compared with the prior art, the application has the beneficial effects that:
by determining the initial water content w of the dredging sludge 0 Determining the cement addition C and determining the slurry water content w c The flow value D of the newly-mixed solidified sludge can be calculated well, and the evaluation problem of the flow degree of the newly-mixed solidified sludge for pouring roadbed, foundation and artificial island is solved;
meanwhile, the application does not need a large number of tests, has low cost, is simple, easy to operate, quick and effective, can be widely applied to the technical field of resource utilization of dredging sludge, and has good practicability.
Drawings
FIG. 1 is a flow chart of a calculation method of a flow value of fresh-mixed solidified sludge provided by an embodiment of the application;
FIG. 2 is a graph showing the fresh-mixed solidified sludge flow value D and the free water content w of the fresh-mixed solidified sludge f And the w ratio of the total water contentw f The relation of/w fits the graph.
Detailed Description
The application is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and are not intended to limit the scope of the present application.
As shown in fig. 1, the embodiment of the application provides a method for calculating a flow value of fresh-mixed solidified sludge, which comprises the following steps:
sampling the dredged sludge and determining the initial water content w of the dredged sludge as a sample according to the specification of China 'geotechnical test method Standard' BG/T50123-1999 0 The unit is dimensionless;
cement is added as a curing material to the dredging sludge as a sample, which cement adopts Portland cement in this embodiment.
Defining the cement adding amount C as the mass percentage of the cement dry powder and the dry soil, and determining the cement adding amount C in dimensionless units;
adding water into the added cement to form slurry, and determining the water content w of the slurry according to the specification of China 'geotechnical test method Standard' BG/T50123-1999 c The unit is dimensionless;
thus, the dredged sludge as a sample is formed into fresh-mixed solidified sludge, which is solidified sludge which is just stirred but not initially set;
by calculation formula (1) w=w 0 +Cw c Obtaining the total water content w of the freshly mixed and solidified sludge, wherein the unit of the total water content w is dimensionless;
by calculating the formula (2) w f The free water content w of the freshly mixed solidified sludge is obtained by the method of the formula =w-1.49C-0.25 f The unit is dimensionless;
as shown in FIG. 2, according to the free water content w of the solidified sludge in different fresh mixes f And the measured value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w can be fitted to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w (w f Relation of/w):
wherein D is in mm (millimeters);
substituting the calculation formula (1) and the calculation formula (2) into the above relation to obtain
By determining the initial water content w of the dredging sludge 0 Determining the cement addition C and determining the slurry water content w c The embodiment of the application can better calculate the flow value D of the newly-mixed solidified sludge, and solve the evaluation problem of the flow degree of the newly-mixed solidified sludge for pouring roadbed, foundation and artificial island;
meanwhile, the embodiment of the application does not need a large number of tests, has low cost, is simple and easy to operate, is quick and effective, can be widely applied to the technical field of resource utilization of dredging sludge, and has good practicability.
The embodiment of the application provides a calculation system for a flow value of fresh-mixed solidified sludge, which comprises the following steps:
a first measurement module: for sampling the dredging sludge and determining the initial water content w of the dredging sludge as a sample 0 ；
And a determination module: for adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C;
a second measurement module: for adding water to cement added to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge;
and a calculation module: for setting the free water content w of the sludge according to the different fresh mixes f And the measured value of the fresh-mixed solidification sludge flowing value D under the condition of the ratio of the total water content w can be fitted to obtain the fresh-mixed solidification sludge flowing value D and the fresh-mixed solidification sludgeFree water content w of mud f And the ratio of the total water content w thereof, thereby calculating a fresh-mixed solidification sludge flow value D.
The embodiment of the application also provides a calculation system of the flow value of the fresh-mixed solidified sludge, which comprises a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is operative to perform the steps of the aforementioned method in accordance with the instructions.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the steps of the aforementioned method.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a system for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present application, and such modifications and variations should also be regarded as being within the scope of the application.
Claims (4)
1. The method for calculating the flow value of the fresh-mixed solidified sludge is characterized by comprising the following steps of:
sampling the dredging sludge and measuring the initial water content w of the dredging sludge as a sample 0 ；
Adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C;
adding water to the added cement to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge;
according to the free water content w of the solidified sludge in different fresh mixes f And the actual measurement value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w of the fresh-mixed solidified sludge flowing value D, fitting to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w of the mixed sludge, so as to calculate a fresh-mixed solidification sludge flow value D;
wherein, the flow value D of the freshly mixed solidified sludge and the freshly mixed solid areFree water content w of sludge f The relation of the ratio of the total water content w is
The calculation formula of the total water content w of the freshly mixed solidified sludge is w=w 0 +Cw c ；
Free water content w of freshly mixed solidified sludge f The calculation formula of (2) is w f ＝w-1.49C-0.25；
The initial water content w of the dredged silt as a sample 0 The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999;
the cement additive amount C is the mass percentage of cement dry powder and dry soil;
the water content w of the slurry c The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999.
2. A system for estimating a flow value of fresh-mixed solidified sludge, the system comprising:
a first measurement module: for sampling the dredging sludge and determining the initial water content w of the dredging sludge as a sample 0 ；
And a determination module: for adding cement as a curing material to the dredging sludge as a sample, and determining a cement addition amount C;
a second measurement module: for adding water to cement added to form slurry, and measuring the water content w of the slurry c So that the dredging sludge as a sample is formed as fresh-mixed solidified sludge;
and a calculation module: for setting the free water content w of the sludge according to the different fresh mixes f And the actual measurement value of the fresh-mixed solidified sludge flowing value D under the condition of the ratio of the total water content w of the fresh-mixed solidified sludge flowing value D, fitting to obtain the fresh-mixed solidified sludge flowing value D and the free water content w of the fresh-mixed solidified sludge f And the ratio of the total water content w of the mixed sludge, so as to calculate a fresh-mixed solidification sludge flow value D;
wherein, the flow value D of the freshly mixed solidified sludge and the free water content w of the freshly mixed solidified sludge f The relation of the ratio of the total water content w is
The calculation formula of the total water content w of the freshly mixed solidified sludge is w=w 0 +Cw c ；
Free water content w of freshly mixed solidified sludge f The calculation formula of (2) is w f ＝w-1.49C-0.25；
The initial water content w of the dredged silt as a sample 0 The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999;
the cement additive amount C is the mass percentage of cement dry powder and dry soil;
the water content w of the slurry c The measurement is carried out according to the specification of China 'geotechnical test method Standard' BG/T50123-1999.
3. The calculation system of the flow value of the fresh-mixed solidified sludge is characterized by comprising a processor and a storage medium;
the storage medium is used for storing instructions; the processor is operative according to the instructions to perform the steps of the method of claim 1.
4. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to claim 1.
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