Urban landscape riverway reinforcing structure and method based on dredged soil improvement

Abstract

The application discloses a kind of based on dredged soil improvement urban landscape riverway reinforcing structure, including riverway embankment, landscape river embankment, river bottom foundation and advancing glass fiber anchor rod;The top of riverway embankment is provided with landscape river embankment, is provided with solidified dredged soil slope near the side of riverway, and the bottom is connected with river bottom foundation;Advancing glass fiber anchor rod passes through solidified dredged soil slope, riverway embankment;Advancing glass fiber anchor rod includes nut, main anchor body, vice anchor body, and water seepage hole is arranged on nut, nut is connected with main anchor body by expansion cavity, hydraulic rod, expansion cavity is equipped with expansion bag and hydraulic rod, main anchor body and vice anchor body are nested connection and contact surface is all equipped with one-way locking thread, the cavity enclosed by main anchor body, vice anchor body is pressure chamber, high-pressure liquid is arranged in pressure chamber, and one end of main anchor body is provided with resistance paste plate.The application also discloses its reinforcing method.The application can not only ensure that city riverway is green, environmental protection, clean and tidy, but also can maintain riverway stability for a long time, and reduce treatment frequency.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of river reinforcement structure and method, in particular to a city landscape river reinforcement structure and method based on dredged soil improvement. BACKGROUND

[0002] In recent years, in order to meet the growing demand for freight volume and ship size, China's ports and waterways continue to develop towards high technical standards and deep water, and large-scale port and waterway construction will inevitably require a large amount of dredged soil to be treated,

[0003] At present, the improved dredged soil is used in land backfill, ecological beach fixation, sand pillow filling, artificial island construction, wetland construction or concrete artificial block component material fields, and the existing dredged soil recycling rate is relatively low, and the application in the city river treatment field has problems such as inability to maintain the city river clean for a long time, high treatment frequency and inability to maintain the river structure stable for a long time.

[0004] A hydraulic coupling anchor rod for slope reinforcement is disclosed in Chinese patent No. 201110158962.6, when the tension reaches the critical tension that the anchor rod can support, at this time the deformation of the surrounding rock only relies on the anchoring of the anchor rod, at this time the pressure relief valve is opened to allow the surrounding rock to deform, after the pressure relief is completed, the hydraulic coupling anchor rod is pressurized again to reach the maximum prestress, thereby realizing the anchoring effect again, and the intelligent control effect of "supporting-yielding-supporting" is finally realized on the surrounding rock. However, this intelligent hydraulic coupling anchor rod is only suitable for conventional slope bodies with obvious surrounding pressure due to surrounding rock deformation, and the sensitivity of the hydraulic pressure cannot be guaranteed, and even for rock slopes with relatively hard rock after cracking, the anchor rod hydraulic function cannot be activated. For the reinforcement of river slope with water level fluctuation all year round, the hydraulic effect cannot be generated, and once water seeps in, the hydraulic coupling anchor rod may even directly lose the reinforcing effect.

[0005] In summary, how to ensure the city river green, clean and stable, reduce the river treatment frequency and other problems need to be solved. SUMMARY

[0006] The application aims to overcome the shortcomings of the prior art, and provides a city landscape river reinforcement structure based on dredged soil improvement, which has good stability, does not need repeated treatment, good purification effect and good appearance, and another object of the application is to provide a city landscape river reinforcement method based on dredged soil improvement, which is green, environmentally friendly and efficient.

[0007] Technical solution: The city landscape riverway reinforcing structure based on dredged soil improvement, comprising a riverway embankment, a landscape river embankment, a river bottom foundation and a push type glass fiber anchor rod; the landscape river embankment is arranged on the top of the riverway embankment, the solidified dredged soil slope body is arranged on the side close to the riverway, and the bottom is connected with the river bottom foundation; the push type glass fiber anchor rod passes through the solidified dredged soil slope body and the riverway embankment; the push type glass fiber anchor rod comprises a nut, a main anchor body and an auxiliary anchor body, a water seepage hole is arranged on the nut, the nut is connected with the main anchor body through an expansion cavity and a hydraulic rod, expansion bags and the hydraulic rod which are connected with each other are arranged in the expansion cavity, the main anchor body and the auxiliary anchor body are connected in a nested mode and one-way locking threads are arranged on the contact surfaces of the main anchor body and the auxiliary anchor body, a cavity formed by the main anchor body and the auxiliary anchor body is a pressure cavity, high-pressure liquid is arranged in the pressure cavity, a grout blocking plate is arranged at the end of the main anchor body away from the hydraulic rod, so that the grout is blocked from being poured around the auxiliary anchor body during the grouting process, and the auxiliary anchor body cannot be pushed forward. The one-way locking thread can ensure that the auxiliary anchor body does not retract after being pushed forward, effectively reinforces the slope body, has better pull-out resistance, and greatly improves the stability of the solidified dredged soil slope body structure.

[0008] Further, the auxiliary anchor body is connected with the anchor head.

[0009] Further, the solidified dredged soil slope body comprises dredged soil, Portland cement and sugarcane residue, and the mass ratio of the dredged soil, the Portland cement and the sugarcane residue is 100:5-8:0.1-0.5.

[0010] Further, the solidification preparation of the solidified dredged soil slope body comprises the following steps:

[0011] a. The dredged soil washed up from the river bottom is configured with a water content of 37.5% for standby;

[0012] b. The amount of Portland cement added is 5-8%, preferably 6%, and the amount of sugarcane residue reinforcing material added is 0.1-0.5%, preferably 0.1%, according to the amount of dredged soil;

[0013] c. The Portland cement and the sugarcane residue reinforcing material are added to the dredged soil obtained in step a. in proportion, and fully stirred to make them uniformly distributed in the soil.

[0014] Further, the main drainage channel is arranged on the landscape river embankment, the auxiliary drainage channel, the dredged soil spray seeding substrate, the angular rough surface, the geogrid and the green plants, the main drainage channel is communicated with the auxiliary drainage channel at the edge of the river embankment, the auxiliary drainage channel divides the dredged soil spray seeding substrate into several small blocks to leave the drainage channel, the drainage capacity of the landscape river embankment is effectively improved, too much water is prevented from remaining in the landscape river embankment to affect the growth of the green plants, the angular rough surface is arranged on the surface of the river embankment and is angularly complementary to the dredged soil spray seeding substrate at a ratio of 1:1, the dredged soil spray seeding substrate is favorably attached to the slope body and does not slide, the geogrid and the green plants are arranged on the dredged soil spray seeding substrate, the geogrid is connected with the dredged soil spray seeding substrate and the river embankment through the fixed anchor, the lower end surface of the fixed anchor is provided with a thread, the geogrid is formed by the galvanized iron wire, the corrosion-resistant galvanized material can effectively prevent the rust water from mixing with the dredged soil spray seeding substrate to destroy the nutrient proportion of the substrate, and the green plants are favorably grown. The geogrid is embedded in the surface of the dredged soil spray seeding substrate, the green plants are more firmly and neatly climbed on the slope surface of the landscape river embankment after growth, and the aesthetic effect of the landscape river embankment is effectively improved.

[0015] Further, the dredged soil spray seeding substrate comprises 2-3 g / kg of anionic polyacrylamide, 10-12 g / kg of potassium salt type high molecular water-absorbing resin and 35-40 g / kg of bagasse. The angular rough surface is in a triangular ladder shape.

[0016] Further, the preparation method of the dredged soil spray seeding substrate comprises the following steps:

[0017] a. determining bagasse, anionic polyacrylamide (PAM) with a molecular weight of 8 million as a binder, potassium salt type high molecular water-absorbing resin (SAP) as a water-retaining agent, and dredged soil washed up for standby;

[0018] b. determining the specific ratio of the three improved materials as follows: 2-3 g / kg of anionic polyacrylamide, 10-12 g / kg of potassium salt type high molecular water-absorbing resin and 35-40 g / kg of bagasse, preferably, 12 g / kg of SAP, 35 g / kg of bagasse and 2.5 g / kg of PAM;

[0019] c. mixing the three improved materials in step b into the dredged soil to be improved according to the ratio, adding grass seeds for forming an aesthetic and suitable growth after fully stirring, and obtaining the dredged soil spray seeding substrate.

[0020] The above-mentioned city landscape river reinforcement method based on dredged soil improvement comprises the following steps:

[0021] a. laying goose eggs on the river bottom after washing the river bottom clean to complete the construction of the river bottom foundation;

[0022] b. backfilling and leveling the solidified dredged soil along the river embankment on both sides of the river bottom foundation, curing the solidified dredged soil, and forming a solidified dredged soil slope.

[0023] c. Drilling holes on the surface of the solidified dredged soil slope and inserting the unexpanded expansion bag and the advancing glass fiber anchor rod, and then grouting and installing the nut;

[0024] d. Setting the angular rough surface on the surface of the landscape river embankment, then laying the auxiliary drainage channel, and performing the spraying construction of the dredged soil spraying substrate, to ensure that the dredged soil spraying substrate and the angular rough surface are angularly complementary, and the main drainage channel is opened at the edge of the river embankment, and is connected with the auxiliary drainage channel;

[0025] e. Installing the geogrid on the surface of the dredged soil spraying substrate, to ensure that the fixed anchor is fully inserted into the dredged soil spraying substrate, and the construction is completed, maintenance is performed, the grass seeds grow into green plants, and the construction of the landscape river embankment is completed.

[0026] Working principle: The dredged soil solidified by the strictly proportioned solidifying material adopts the inclined support type river channel structure and is combined with the advancing glass fiber anchor rod, to double reinforce the river channel structure, the landscape river embankment constructed by the new type of proportioned spraying substrate effectively blocks the pollutants on both sides of the river channel, wherein the upper end of the hydraulic rod in the advancing glass fiber anchor rod is adhered to the expansion bag, the lower end is movably connected with the upper end opening of the pressure cavity, the high-pressure liquid is arranged in the pressure cavity, when the expansion bag expands due to water, the hydraulic rod is pushed forward to the pressure cavity, the internal pressure of the pressure cavity increases, under the action of the high-pressure liquid, the pressure further increases, the auxiliary anchor body is pushed forward under the action of the one-way locking thread, and does not retract, the water level in the river channel rises, the water seeps into the anchor rod, and thus the hydraulic pushing of the anchor rod is triggered.

[0027] Advantages: Compared with the prior art, the present application has the following remarkable features:

[0028] 1. The dredged soil solidified by the strictly proportioned solidifying material adopts the inclined support type river channel structure and is combined with the advancing glass fiber anchor rod, to double reinforce the river channel structure, the landscape river embankment constructed by the new type of proportioned spraying substrate effectively blocks the pollutants on both sides of the river channel, wherein the upper end of the hydraulic rod in the advancing glass fiber anchor rod is adhered to the expansion bag, the lower end is movably connected with the upper end opening of the pressure cavity, the high-pressure liquid is arranged in the pressure cavity, when the expansion bag expands due to water, the hydraulic rod is pushed forward to the pressure cavity, the internal pressure of the pressure cavity increases, under the action of the high-pressure liquid, the pressure further increases, the auxiliary anchor body is pushed forward under the action of the one-way locking thread, and does not retract, the water level in the river channel rises, the water seeps into the anchor rod, and thus the hydraulic pushing of the anchor rod is triggered.

[0029] 2. The improved dredged soil spraying substrate is used for the green plant seeding of the landscape river embankment, can effectively prevent the pollutants on both sides of the river channel from entering the river channel, forms a natural barrier, and especially plays the role of beautiful and non-polluted city landscape river in thunderstorm weather.

[0030] 3. The dredged soil solidified by the strictly proportioned solidifying material adopts the inclined support type river channel structure and is combined with the advancing glass fiber anchor rod, to double reinforce the river channel structure, the landscape river embankment constructed by the new type of proportioned spraying substrate effectively blocks the pollutants on both sides of the river channel, wherein the upper end of the hydraulic rod in the advancing glass fiber anchor rod is adhered to the expansion bag, the lower end is movably connected with the upper end opening of the pressure cavity, the high-pressure liquid is arranged in the pressure cavity, when the expansion bag expands due to water, the hydraulic rod is pushed forward to the pressure cavity, the internal pressure of the pressure cavity increases, under the action of the high-pressure liquid, the pressure further increases, the auxiliary anchor body is pushed forward under the action of the one-way locking thread, and does not retract, the water level in the river channel rises, the water seeps into the anchor rod, and thus the hydraulic pushing of the anchor rod is triggered.

[0031] 4. The angular rough surface is in the shape of a triangular ladder, is engraved on the inclined ladder type river embankment and the surface of the solidified dredged soil slope, and is beneficial to the better adhesion of the dredged soil spraying substrate to the slope.

[0032] 5. The geogrid semi-embedded in the surface of the dredged soil spraying substrate can make the grown green plants climb more firmly and neatly on the landscape riverbank slope, effectively improving the aesthetic effect of the landscape riverbank. The corrosion-resistant galvanized material can effectively prevent the material from rusting and the residual rust water from mixing with the dredged soil spraying substrate and destroying its substrate nutrient ratio, which is conducive to better growth of green plants.

[0033] 6. The combined use of the main drainage channel and the grid-shaped secondary drainage channel effectively improves the drainage capacity of the landscape river embankment, preventing excessive water from remaining and affecting the growth of green plants.

[0034] 7. The riverbed foundation is paved with pebbles after being cleaned, which has a good purifying effect on the river water and is also aesthetically pleasing. When the river water rises, the water seeps into the expansion chamber of the push-type fiberglass anchor rod. With the push action of the hydraulic rod, the secondary anchor body can be extended, which has better pull-out resistance and greatly improves the stability of the solidified dredged slope structure.

[0035] 8. The inclined bracing river structure with push-type fiberglass anchors plays a dual role in reinforcement and has a longer service life. The push-type fiberglass anchors take advantage of the rise in water level in the river and the water seeps into the anchors to trigger hydraulic propulsion. The structure is designed to be more suitable for underwater slope reinforcement, taking into full account the actual conditions of the river. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the landscape river embankment 2 of the present invention;

[0038] Figure 3 This is a cross-sectional view of the landscape riverbank 2 of the present invention;

[0039] Figure 4 This is a partial enlarged view of the geogrid at point 205 of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the fixed anchor 207 of the present invention;

[0041] Figure 6 This is a cross-sectional view of the push-type glass fiber anchor 4 of the present invention;

[0042] Figure 7 This is a top view of the nut 401 of the present invention. Detailed Implementation

[0043] like Figure 1The bottom of the city landscape riverway reinforcement structure based on dredged soil improvement is the river bottom foundation 3, which is composed of uniformly laid pebbles. The top of the inclined ladder type riverway bank 1 has a landscape riverway bank 2, and the side close to the riverway has a solidified dredged soil slope 5. The advancing type glass fiber anchor rod 4 is uniformly laid on the solidified dredged soil slope 5 and extends along the surface thereof into the riverway bank 1.

[0044] The solidified dredged soil slope 5 comprises dredged soil, Portland cement and sugarcane residue, and the mass ratio of the dredged soil, the Portland cement and the sugarcane residue is 100:5-8:0.1-0.5. The solidification preparation of the solidified dredged soil slope 5 comprises the following steps:

[0045] a. The dredged soil washed up from the river bottom is prepared according to a remolded sample, and the water content is controlled to be 37.5%;

[0046] b. The Portland cement is mixed in an amount of 5-8%, preferably 6%, and the sugarcane residue reinforcing material is mixed in an amount of 0.1-0.5%, preferably 0.1%, according to the amount of the dredged soil;

[0047] c. The Portland cement and the sugarcane residue reinforcing material are mixed into the dredged soil obtained in step a. in the above-mentioned proportions, and the mixture is fully stirred to make the mixture uniformly distributed in the soil.

[0048] As shown in Figures 2-5 , the landscape riverway bank 2 is provided with a main drainage channel 201, a secondary drainage channel 202, a dredged soil spray-seeding substrate 203, an angular rough surface 204, a geogrid 205 and green plants 206. The main drainage channel 201 is opened at the edge of the riverway bank 1 and is connected to the secondary drainage channel 202, and the secondary drainage channel 202 divides the dredged soil spray-seeding substrate 203 into several small blocks. The angular rough surface 204 is in the shape of a triangular ladder and is engraved on the surface of the inclined ladder type riverway bank 1 and is angularly complementary to the dredged soil spray-seeding substrate 203 at a ratio of 1:1, which is conducive to better adhesion of the dredged soil spray-seeding substrate 203 to the slope and prevents the dredged soil spray-seeding substrate 203 from sliding off. The geogrid 205 and the green plants 206 are arranged on the dredged soil spray-seeding substrate 203. The geogrid 205 is connected to the dredged soil spray-seeding substrate 203 and the riverway bank 1 through a fixed anchor 207. The geogrid 205 is formed by winding a galvanized iron wire 209, and a fixed anchor 207 is welded below the geogrid 205. A thread 208 is engraved on the surface of the lower end of the fixed anchor 207. The corrosion-resistant galvanized material can effectively prevent the mixture of rust water remaining from the rusted material and the dredged soil spray-seeding substrate 203 from damaging the nutrient proportion of the substrate, and facilitates better growth of the green plants 206. The geogrid 205 is embedded in the surface of the dredged soil spray-seeding substrate 203, which can make the grown green plants 206 more firmly and neatly cling to the slope surface of the landscape riverway bank 2, effectively improving the aesthetic effect of the landscape riverway bank 2.

[0049] The dredged soil spray seeding substrate 203 comprises 2-3 g / kg anionic polyacrylamide, 10-12 g / kg potassium salt type high molecular water-absorbing resin and 35-40 g / kg bagasse. The angular rough surface 204 is in a triangular stepped shape. The preparation method of the dredged soil spray seeding substrate 203 comprises the following steps:

[0050] a. Determine bagasse, anionic polyacrylamide (PAM) with a molecular weight of 8 million as a binder, potassium salt type high molecular water-absorbing resin (SAP) as a water-retaining agent, and dredged soil for washing;

[0051] b. Determine the specific ratio of the three improvement materials: 2-3 g / kg anionic polyacrylamide, 10-12 g / kg potassium salt type high molecular water-absorbing resin and 35-40 g / kg bagasse. Preferably, SAP 12 g / kg, bagasse 35 g / kg, PAM 2.5 g / kg;

[0052] c. Mix the three improvement materials in step b according to the ratio into the dredged soil to be improved, add grass seeds that are aesthetically pleasing and suitable for growth after thorough stirring, and obtain the dredged soil spray seeding substrate 203.

[0053] As Figures 6-7 , the advancing type glass fiber anchor rod 4 comprises a nut 401, a main anchor body 402 and a secondary anchor body 403. The nut 401 is provided with a water seepage hole 404. The nut 401 is connected with the main anchor body 402 through an expansion cavity 405 and a hydraulic rod 406. The expansion cavity 405 is internally provided with an expansion bag 407 and the hydraulic rod 406. The upper end of the hydraulic rod 406 is adhered to the expansion bag 407, and the lower end is movably connected with the upper end opening of a pressure cavity 409. The main anchor body 402 is nested with the secondary anchor body 403, and one-way locking threads 408 are arranged on the contact surfaces of the main anchor body 402 and the secondary anchor body 403. The cavity surrounded by the main anchor body 402 and the secondary anchor body 403 is the pressure cavity 409, and the pressure cavity 409 is internally provided with high-pressure liquid 410. A grout blocking plate 411 is welded around the lower end of the main anchor body 402, which facilitates the blocking of grout from flowing around the secondary anchor body 403 during grouting, so that the secondary anchor body 403 cannot be advanced. The one-way locking threads 408 can ensure that the secondary anchor body 403 does not retract after being advanced, effectively reinforcing the slope body and having better pull-out resistance, which greatly improves the stability of the solidified dredged soil slope body 5 structure. The secondary anchor body 403 is connected with an anchor head 412. The outer wall of the main anchor body 402 is uniformly provided with sharp parts at intervals.

[0054] The method for reinforcing the urban landscape river channel based on the improvement of dredged soil comprises the following steps:

[0055] a. washing the river channel to be constructed, and flattening the river channel according to the profile of the inclined ladder type river bank 1 on both sides of the river channel;

[0056] b. The washed dredged soil is prepared according to the formula of the solidified dredged soil slope 5 and the dredged soil spray seeding substrate 203 respectively for use;

[0057] c. The riverbed foundation 3 is completed by laying the riverbed with the cobblestones after washing clean;

[0058] d. The solidified dredged soil is backfilled along the river embankment 1 on both sides of the riverbed foundation 3 and is leveled according to the contour, followed by curing, waiting for the solidified dredged soil slope 5 to be formed;

[0059] e. The expanded bag 407 unexpanded push-type glass fiber anchor rod 4 is inserted into the hole drilled on the surface of the solidified dredged soil slope 5, followed by grouting and installation of the nut 401;

[0060] f. The angular rough surface 204 is arranged on the surface of the landscape river embankment 2, followed by laying the secondary drainage channel 202, spray seeding construction of the dredged soil spray seeding substrate 203, ensuring that the dredged soil spray seeding substrate 203 and the angular rough surface 204 are angularly complementary at a ratio of 1:1, and the primary drainage channel 201 is opened on the edge of the river embankment 1 and connected with the secondary drainage channel 202;

[0061] g. The geogrid 205 is installed on the surface of the dredged soil spray seeding substrate 203, ensuring that the fixed anchor 207 is fully inserted into the dredged soil spray seeding substrate 203, the construction is completed, the maintenance is carried out, the grass seeds grow into green plants 206, and the construction of the landscape river embankment 2 is completed.

Claims

1. A city landscape riverway reinforcement structure based on dredged soil improvement, characterized by: The utility model provides a riverway bank (1), landscape river bank (2), river bottom foundation (3) and advancing type glass fiber anchor rod (4) are included, the top of riverway bank (1) is provided with landscape river bank (2), is provided with solidified dredged soil slope body (5) near the side of riverway, the bottom is connected with river bottom foundation (3), advancing type glass fiber anchor rod (4) passes through solidified dredged soil slope body (5), riverway bank (1), advancing type glass fiber anchor rod (4) includes nut (401), main anchor body (402), vice anchor body (403), nut (401) is provided with water seepage hole (404), nut (401) is connected with main anchor body (402) through expansion cavity (405), hydraulic stem (406), expansion cavity (405) is provided with expansion bag (407) and hydraulic stem (406) that are connected with each other, main anchor body (402) and vice anchor body (403) are nestedly connected and are provided with one-way locking thread (408) on the contact surface of both, the cavity that is enclosed by main anchor body (402), vice anchor body (403) is pressure chamber (409), pressure chamber (409) is provided with high pressure liquid (410), the one end of main anchor body (402) away from hydraulic stem (406) is provided with grout stop plate (411), Vice anchor body (403) is connected with anchor head (412), when expansion bag (407) is expanded after meeting water, drives hydraulic stem (406) to advance to pressure chamber (409), the internal pressure of pressure chamber (409) increases, under the action of high pressure liquid (410), the pressure further increases, promotes vice anchor body (403) to advance under the action of one-way locking thread, does not retract, Landscape river bank (2) is provided with main drain (201), vice drain (202), dredged soil spray seeding substrate (203), angular rough surface (204), geogrid (205) and green plant (206), main drain (201) is opened in riverway bank (1) edge and is connected with vice drain (202), vice drain (202) divides dredged soil spray seeding substrate (203) into several small blocks, angular rough surface (204) is arranged on the surface of riverway bank (1) and is angularly complementary with dredged soil spray seeding substrate (203), geogrid (205) and green plant (206) are arranged on dredged soil spray seeding substrate (203), Dredged soil spray seeding substrate (203) includes 2~3 g / kg anionic polyacrylamide, 10~12 g / kg potassium salt type macromolecular water absorbing resin and 35~40 g / kg bagasse.

2. A city landscape riverway reinforcement structure based on dredged soil improvement according to claim 1, characterized in that: Solidified dredged soil slope body (5) includes dredged soil, Portland cement and bagasse, and the mass ratio of the dredged soil, the Portland cement and the bagasse is 100:5~8:0.1~0.

5.

3. A city landscape riverway reinforcement structure based on dredged soil improvement according to claim 1, characterized in that: Geogrid (205) is connected with dredged soil spray seeding substrate (203) and riverway bank (1) through fixed anchor (207).

4. A city landscape riverway reinforcement structure based on dredged soil improvement according to claim 3, characterized in that: The lower end surface of fixed anchor (207) is provided with thread (208).

5. A city landscape riverway reinforcement structure based on dredged soil improvement according to claim 1, characterized in that: Geogrid (205) is surrounded by galvanized iron wire (209).

6. A city landscape riverway reinforcement structure based on dredged soil improvement according to claim 1, characterized in that: The angular rough surface (204) is in a triangular stepped shape.

7. The construction method of a city landscape riverway reinforcement structure based on dredged soil improvement according to any one of claims 1 to 6, characterized in that, The method comprises the following steps: a. laying pebbles on the riverbed after flushing, completing the construction of the riverbed foundation (3); b. backfilling and leveling the solidified dredged soil along the river embankment (1) on both sides of the riverbed foundation (3), curing the solidified dredged soil, and forming a solidified dredged soil slope (5); c. drilling holes in the surface of the solidified dredged soil slope (5) and inserting the unexpanded push-type glass fiber anchor rod (4) into the expanded bag (407), then grouting and installing the nut (401); d. setting the angular rough surface (204) on the surface of the landscape river embankment (2), then laying the auxiliary drainage channel (202), and performing the spraying construction of the dredged soil spraying substrate (203), ensuring that the dredged soil spraying substrate (203) and the angular rough surface (204) are angularly complementary, opening the main drainage channel (201) at the edge of the river embankment (1) and connecting it with the auxiliary drainage channel (202); e. installing the geogrid (205) on the surface of the dredged soil spraying substrate (203), ensuring that the fixed anchor (207) is fully inserted into the dredged soil spraying substrate (203), completing the construction, curing, and growing the grass into green plants (206), and completing the construction of the landscape river embankment (2).

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