阅读说明：本技术 一种护岸工程的施工方法 (Construction method of bank protection project ) 是由 翁汉林 周威榕 孙波 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种护岸工程的施工方法,其包括以下步骤：搭设护岸主体模板；将河湖底的淤泥挖取至淤泥搅拌机；通过淤泥搅拌机上的振动格栅去除掺杂在淤泥中的块状物；通过泵送设备将固化剂输送至淤泥搅拌机中,并与淤泥搅拌混合,用以得到复合淤泥浆；通过淤泥搅拌机中的柱塞泵将复合淤泥浆输送至护岸主体模板内；复合淤泥浆经过养护后硬化成型护岸主体；本发明通过利用河湖底的淤泥进行护岸工程的施工,既能够清除河湖底的淤泥,并实现淤泥的就近资源化利用,无需外运、填放,也无需额外购置护岸工程施工所需的材料,从而大大降低了护岸工程的施工成本。(The invention discloses a construction method of a bank protection project, which comprises the following steps: erecting a bank protection main body template; digging sludge at the bottom of a river or lake to a sludge stirrer; removing lumps doped in the sludge through a vibration grid on the sludge stirrer; conveying the curing agent into a sludge stirrer through pumping equipment, and stirring and mixing the curing agent with sludge to obtain composite sludge slurry; conveying the composite silt slurry into a main bank protection template through a plunger pump in the silt stirrer; curing the composite sludge slurry and then hardening and forming the bank protection main body; the method can remove the sludge at the bottom of the river and lake, realize the nearby resource utilization of the sludge, and does not need to transport and fill, and additionally purchase materials required by the construction of the bank protection project, thereby greatly reducing the construction cost of the bank protection project.)

1. A construction method of bank protection engineering is characterized in that: which comprises the following steps:

step one, erecting a bank protection main body template;

step two, digging sludge at the bottom of the river and lake to a sludge stirrer;

removing lumps doped in the sludge through a vibration grid on the sludge stirrer;

step four, conveying the curing agent into a sludge stirrer through pumping equipment, and stirring and mixing the curing agent with sludge to obtain composite sludge slurry;

step five, conveying the composite silt slurry into a main bank protection template through a plunger pump in the silt stirrer;

and step six, curing the composite sludge slurry and then hardening and forming the bank protection main body.

2. A construction method of a revetment project as claimed in claim 1, wherein: the construction method further comprises the following steps:

pressing the composite sludge slurry into pressed blocks through a pressing mold, and maintaining the pressed blocks;

and step eight, installing the pressed blocks in the pre-embedded supports on the side slopes of the revetment main body to form the side slope revetment, and reserving grouting gaps between the adjacent pressed blocks and between the pressed blocks and the revetment main body.

3. A construction method of a revetment project as claimed in claim 2, wherein: the construction method further comprises the following steps:

step nine, erecting a bank protection reinforcing template;

step ten, conveying the composite silt slurry to a bank protection reinforcing template and a grouting gap through a plunger pump in a silt stirrer;

and step eleven, curing the composite silt slurry, and then connecting the bank protection main body and the side slope protection surface into an integral structure.

4. A construction method of a revetment project as claimed in claim 1, wherein: in the third step, the solid content of the sludge after the removal of the lumps is 5-40%.

5. A construction method of a revetment project as claimed in claim 1, wherein: in the fourth step, the curing agent comprises cement, sodium silicate, sodium chloride and sodium sulfate; and the weight of the cement is 3% -10% of that of the sludge, and the weight of the sodium silicate, the sodium chloride and the sodium sulfate is 2% -10% of that of the cement.

6. The construction method of a revetment project as claimed in claim 5, wherein: the curing agent also comprises fly ash, and the weight of the fly ash is 2-10% of that of the sludge.

Technical Field

The invention relates to the technical field of bank protection engineering, in particular to a construction method of the bank protection engineering.

Background

The bank protection engineering refers to a protection engineering facility for preventing disasters such as bank collapse and the like caused by side erosion and local scouring of river and lake water flow.

The bank protection project is divided according to structural materials, mainly comprising block stone bank protection, willow stone bank protection, gabion bank protection, concrete block bank protection and the like, and the main materials are sand and stone. However, the current national environmental protection policy is tightened, the exploitation of sand and stone is strictly limited, the supply of sand and stone is seriously short, the price of sand and stone is greatly increased, and the construction cost of the bank protection project is greatly increased.

In view of the above, the present inventors have made extensive studies and research on various defects and inconveniences caused by the above-mentioned incomplete construction of the revetment project, and have developed and designed the present invention.

Disclosure of Invention

The invention aims to provide a construction method of a bank protection project with low construction cost.

In order to achieve the above purpose, the solution of the invention is:

a construction method of a bank protection project comprises the following steps:

step one, erecting a bank protection main body template;

step two, digging sludge at the bottom of the river and lake to a sludge stirrer;

removing lumps doped in the sludge through a vibration grid on the sludge stirrer;

step four, conveying the curing agent into a sludge stirrer through pumping equipment, and stirring and mixing the curing agent with sludge to obtain composite sludge slurry;

step five, conveying the composite silt slurry into a main bank protection template through a plunger pump in the silt stirrer;

and step six, curing the composite sludge slurry and then hardening and forming the bank protection main body.

Preferably, the construction method further comprises the following steps:

pressing the composite sludge slurry into pressed blocks through a pressing mold, and maintaining the pressed blocks;

and step eight, installing the pressed blocks in the pre-embedded supports on the side slopes of the revetment main body to form the side slope revetment, and reserving grouting gaps between the adjacent pressed blocks and between the pressed blocks and the revetment main body.

Preferably, the construction method further comprises the following steps:

step nine, erecting a bank protection reinforcing template;

step ten, conveying the composite silt slurry to a bank protection reinforcing template and a grouting gap through a plunger pump in a silt stirrer;

and step eleven, curing the composite silt slurry, and then connecting the bank protection main body and the side slope protection surface into an integral structure.

Preferably, in the third step, the solid content of the sludge after the removal of the lumps is 5-40%.

Preferably, in the fourth step, the curing agent comprises cement, sodium silicate, sodium chloride and sodium sulfate; and the weight of the cement is 3% -10% of that of the sludge, and the weight of the sodium silicate, the sodium chloride and the sodium sulfate is 2% -10% of that of the cement.

Preferably, the curing agent further comprises fly ash, and the weight of the fly ash is 2% -10% of that of the sludge.

After the scheme is adopted, the construction of the bank protection project is carried out by utilizing the sludge at the bottom of the river and lake, so that the sludge at the bottom of the river and lake can be removed, the nearby resource utilization of the sludge is realized, the outward transportation and the filling are not needed, and the additional purchase of materials required by the construction of the bank protection project is not needed, thereby greatly reducing the construction cost of the bank protection project.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

The invention discloses a better embodiment of a construction method of a revetment project, which comprises the following steps:

step one, erecting a bank protection main body template;

step two, digging sludge at the bottom of the river and lake to a sludge stirrer;

removing lumps with large particle sizes such as stones doped in the sludge through a vibration grid on the sludge stirrer;

step four, conveying the curing agent into a sludge stirrer through pumping equipment, and stirring and mixing the curing agent with sludge to obtain composite sludge slurry;

step five, conveying the composite silt slurry into a main bank protection template through a plunger pump in the silt stirrer;

curing the composite sludge slurry and then hardening and forming the bank protection main body;

pressing the composite sludge slurry into pressed blocks through a pressing mold, and maintaining the pressed blocks;

installing the pressed blocks in a pre-buried bracket on the side slope of the revetment main body to form a side slope revetment, and reserving grouting gaps between the adjacent pressed blocks and between the pressed blocks and the revetment main body;

step nine, erecting a bank protection reinforcing template;

step ten, conveying the composite silt slurry to a bank protection reinforcing template and a grouting gap through a plunger pump in a silt stirrer;

and step eleven, curing the composite silt slurry, and then connecting the bank protection main body and the side slope protection surface into an integral structure.

Preferably, in the third step, the solid content of the sludge after removing the lumps is 5-40%. In the embodiment, water is added into the sludge after the removal of the lumps, so that the solid content of the sludge after the removal of the lumps is controlled to be 5-40%.

Preferably, in the fourth step, the curing agent comprises cement, sodium silicate, sodium chloride and sodium sulfate; and the weight of the cement is 3% -10% of that of the sludge, and the weight of the sodium silicate, the sodium chloride and the sodium sulfate is 2% -10% of that of the cement. The curing agent is an alkali-activated cementing material, and after being mixed with sludge containing certain moisture, a series of physical and chemical reactions occur, high-valence ions in the solution can change the surface charge characteristics of sludge particles, reduce the repulsive force among the sludge particles, destroy the water absorption film of the sludge particles, improve the adsorption force among the sludge particles, ensure that the moisture content in the sludge reaches stable balance, simultaneously form crystal salt, form a large number of needle-shaped crystals rich in crystal water in the sludge, and form a strength framework among the gaps of the sludge particles; secondly, hydrate is filled in the strength framework, so that the curing system is further compact; the curing agent and part of the sludge particles take part in chemical reaction, so that the reinforced field has extremely strong durability, waterproofness and stability.

Preferably, the curing agent further comprises fly ash, and the weight of the fly ash is 2% -10% of that of the sludge. By adding the fly ash, the curing effect of the curing agent is not influenced, the using amount of cement can be reduced, and the production cost of the curing agent is reduced.

The key point of the invention is that the construction of the bank protection project is carried out by utilizing the silt at the bottom of the river and the lake, so that the silt at the bottom of the river and the lake can be removed, the nearby resource utilization of the silt is realized, the outward transportation and the filling are not needed, and the additional purchase of materials required by the construction of the bank protection project is not needed, thereby greatly reducing the construction cost of the bank protection project.

The foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as may be appropriate to those skilled in the art without departing from the scope of the invention.