Construction method of water conservancy dike

Abstract

The invention relates to the technical field of water conservancy construction, in particular to a water conservancy dike construction method which comprises the following steps: step 1, carrying out base surface cleaning and impurity removal on a to-be-constructed area; secondly, a working pit is excavated in the base plane through an excavating machine, dredged soil is obtained, and the dredged soil is stacked and stored; the dredged soil is soft spoil and river and lake dredged soft soil; thirdly, array-shaped grooves are dug in the bottom of the working pit according to needs; the surfaces of the array-shaped grooves are flat, the grooves are of a vertical trapezoid structure, and the trapezoid structure can improve the stress strength; fourthly, a reinforcement cage is formed in the groove through steel bar bundling, and concrete is prepared through a cement mixer; and fifthly, the reinforcement cage in the groove is filled and poured with prepared concrete through a pouring machine to form a frame structure. According to the method, the dredged soil generated by digging and the quicklime are crushed and mixed for backfilling, so that the dredged soil is prevented from being thrown outwards, the dredged soil is effectively recycled and reused, and waste of soil resources is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy construction, in particular to a construction method of a water conservancy embankment. Background Art

[0002] Water conservancy embankment refers to earthen embankments or flood control walls built along the coasts of rivers, seas, lakes, or around reservoir areas and flood diversion areas; water conservancy slope protection is also a type of water conservancy embankment. With the rapid development of society, it is inevitable to involve the construction of water conservancy. A large amount of dredged soil will be generated during water conservancy construction. Most of this dredged soil will become waste and be thrown away, wasting soil resources.

[0003] At present, most of the embankments in the reservoir area are built with earth and stones. Although they can prevent flooding to a certain extent, they will inevitably be damaged and their support will be reduced due to the erosion of long-term high water levels and the scouring of rainwater during the rainy season. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method for constructing a water conservancy embankment, which has the advantages of effectively utilizing soil resources, avoiding waste, and ensuring a strong embankment, thereby solving the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A construction method for a water conservancy embankment comprises the following steps: Step 1: Clean the base surface of the area to be constructed and remove debris; Step 2: Use excavation machinery to dig a working pit on the base surface, obtain dredged soil, and pile it up for storage; Step 3: Dig array-shaped grooves at the bottom of the working pit as needed; Step 4: A steel cage is formed by tying steel bars inside the groove, and concrete is prepared by a cement mixer; Step 5: Use a pouring machine to fill the steel cage inside the groove with the prepared concrete to form a frame structure; Step 6: Build concrete walls of corresponding height on the groove frame structure as required; Step 7: After the concrete wall solidifies, lay an anti-seepage membrane on its surface, fix it by hot-melt welding, and seal the periphery of the anti-seepage membrane; Step 8: Crush and mix the accumulated dredged soil and quicklime blocks in a set proportion, fill them into the cavity formed by the concrete wall, and repeatedly roll them with a rolling machine until the required density is met.

[0006] Preferably, the dredged soil in step 2 is soft abandoned soil and soft soil dredged from rivers and lakes.

[0007] Preferably, in the step three, the surface of the array-shaped grooves is flat, and the grooves are in an upright trapezoidal structure.

[0008] Preferably, in step six, opposite sides of the concrete walls are connected by setting a steel bar structure.

[0009] Preferably, in step seven, an anti-seepage membrane is laid on both the outer side and the inner side of the concrete wall.

[0010] Preferably, the crushing and mixing of the dredged soil and quicklime in step eight can be carried out using a rotary tiller for farmland.

[0011] Compared with the prior art, the present invention provides a construction method for a water conservancy embankment, which has the following beneficial effects: 1. The present invention backfills the dredged soil produced by digging a pit by crushing and mixing it with quicklime, thereby preventing the dredged soil from being thrown out, effectively recycling it and reducing the waste of soil resources.

[0012] 2. The present invention digs a groove at the bottom of the working pit, forms a steel cage inside the groove by tying steel bars, and uses a cement mixer to prepare concrete. The prepared concrete is used to fill the steel cage inside the groove through a pouring machine to cast it into a frame structure. A concrete wall of corresponding height is built on the groove frame structure as required. After the concrete wall solidifies, an anti-seepage membrane is laid on its surface and fixed by hot-melt welding. The accumulated dredged soil and quicklime blocks of a set proportion are crushed and mixed, and after mixing, they are filled into the cavity formed by the concrete wall, and are repeatedly rolled by a rolling machine until the required density is met, thereby effectively improving the support and firmness of the embankment. DETAILED DESCRIPTION

[0013] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] The present invention relates to a construction method of a water conservancy embankment, comprising the following steps: Step 1: Clean the base surface of the area to be constructed and remove debris; Step 2: Use excavators to dig a working pit on the base surface, obtain dredged soil, and pile it up for storage; the dredged soil is soft abandoned soil and soft soil dredged from rivers and lakes; Step 3: excavate array-shaped grooves at the bottom of the working pit as needed; the surface of the array-shaped grooves is flat, and the grooves are in an upright trapezoidal structure, which can improve the stress strength; Step 4: A steel cage is formed by tying steel bars inside the groove, and concrete is prepared by a cement mixer; Step 5: Use a pouring machine to fill the steel cage inside the groove with the prepared concrete to form a frame structure; Step 6: Concrete walls of corresponding height are built on the groove frame structure as required; the opposite sides of the concrete walls are connected by setting up steel bars to greatly improve the integrity of the embankment and enhance its firmness; Step 7: After the concrete wall solidifies, lay an anti-seepage membrane on its surface, fix it by hot-melt welding, and seal the periphery of the anti-seepage membrane; lay an anti-seepage membrane on both the outside and inside of the concrete wall, thereby greatly improving the waterproofness and reducing water penetration; Step 8: The accumulated dredged soil and quicklime blocks of a set proportion are crushed and mixed, and then filled into the cavity formed by the concrete wall. The mixture is rolled repeatedly by a rolling machine until the required density is met. The crushing and mixing of the dredged soil and quicklime can be carried out by a rotary tiller for farmland, replacing the large machinery used for conventional mixing, thereby saving engineering costs.

[0015] Dredged soil and quicklime blocks of a set proportion are crushed and mixed, and then filled into the cavity formed by the concrete wall. The water content inside the filled soil can be reduced to a certain extent through the water absorption characteristics of quicklime.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for constructing a water conservancy embankment, characterized in that: The following steps are involved: Step 1: Clean the base surface of the area to be constructed and remove debris; Step 2: Use excavation machinery to dig a working pit on the base surface, obtain dredged soil, and pile it up for storage; Step 3: Dig array-shaped grooves at the bottom of the working pit as needed; Step 4: A steel cage is formed by tying steel bars inside the groove, and concrete is prepared by a cement mixer; Step 5: Use a pouring machine to fill the steel cage inside the groove with the prepared concrete to form a frame structure; Step 6: Build concrete walls of corresponding height on the groove frame structure as required; Step 7: After the concrete wall solidifies, lay an anti-seepage membrane on its surface, fix it by hot-melt welding, and seal the periphery of the anti-seepage membrane; Step 8: Crush and mix the accumulated dredged soil and quicklime blocks in a set proportion, fill them into the cavity formed by the concrete wall, and repeatedly roll them with a rolling machine until the required density is met.

2. A method for constructing a water conservancy embankment according to claim 1, characterized in that: The dredged soil in step 2 is soft abandoned soil and soft soil dredged from rivers and lakes.

3. A method for constructing a water conservancy embankment according to claim 1, characterized in that: In the step three, the surface of the array-shaped grooves is flat, and the grooves are in an upright trapezoidal structure.

4. A method for constructing a water conservancy embankment according to claim 1, characterized in that: In step six, opposite sides of the concrete walls are connected by setting a steel bar structure.

5. A method for constructing a water conservancy embankment according to claim 1, characterized in that: In the step 7, an anti-seepage membrane is laid on both the outer side and the inner side of the concrete wall.

6. A method for constructing a water conservancy embankment according to claim 1, characterized in that: The crushing and mixing of the dredged soil and quicklime in step eight can be carried out using a rotary tiller for farmland.