CN215367097U - Structure is restoreed to dyke-crossing culvert crack - Google Patents

Abstract

The utility model relates to a dike-crossing culvert crack repairing structure, wherein dikes are positioned on the periphery of the outer side of a dike-crossing culvert, culvert body cracks are positioned in the dike-crossing culvert, a channel is dug on the inner surface of a culvert body in the dike-crossing culvert, through holes are drilled along the culvert body cracks, and grouting pipes capable of grouting are inserted into the through holes and extend into the dikes. The method can achieve the purpose of effectively repairing cracks of the culvert body of the dike-crossing culvert, prevent water seepage in the dike and the dam from entering the dike-crossing culvert through seepage channels such as the culvert body cracks and prevent the contact cracks between the culvert body and dam filling from being damaged by contact seepage.

Description

Structure is restoreed to dyke-crossing culvert crack

Technical Field

The utility model relates to a crack repairing structure, in particular to a through-dike culvert crack repairing structure, and belongs to the innovation technology of the through-dike culvert crack repairing structure.

Background

When the culvert pipe crosses the interior of the dam building, due to reasons such as improper geology, construction and design, the problems of culvert body crack leakage or seepage caused by pulling cracks at a crossing position of the culvert and the water stop position and contact leakage between the culvert pipe and the soil body of the dam are easily caused. When the culvert body structure is processed, a sleeve pipe method or a pipe jacking method is generally adopted for processing; for the leakage caused by the contact position between the culvert pipe and the dam filling soil, a method of replacing and filling clay or grouting for seepage prevention is often adopted for treatment. When the casing pipe method or the pipe jacking method is adopted for processing, the construction process is complex, the reinforcing cost is high, gaps between new culvert pipes and old culvert pipes must be grouted and reprocessed, the construction process is complex, the vibration in the construction process can cause disturbance to original dam soil bodies, and large-scale machinery is needed for construction. When the problem of contact leakage is treated by replacing and filling clay or grouting seepage prevention, grouting or excavation replacement and filling are generally carried out from the levee top, the grouting or replacement depth of culvert pipes buried in deep layers is deep, the engineering quantity is large, the construction process is complex, the construction cost is high, and cracks are easily generated between new and old soil bodies after replacement and filling due to the settlement difference.

Due to the particularity of the position of the through culvert, when cracks appear on the culvert body under the general condition, the problem of contact leakage often appears between culvert pipes and dam filling along with dislocation of the culvert body. The two processing methods can only carry out targeted processing on a single working condition, and cannot simultaneously reinforce and process the culvert body cracks and the culvert periphery contact leakage problems.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a through-dike culvert crack repair structure. The method can achieve the purpose of effectively repairing cracks of the culvert body of the dike-crossing culvert, prevent water seepage in the dike and the dam from entering the dike-crossing culvert through seepage channels such as the culvert body cracks and prevent the contact cracks between the culvert body and dam filling from being damaged by contact seepage.

The technical scheme of the utility model is as follows: the dam-penetrating culvert crack repairing structure is characterized in that a dike is positioned on the periphery of the outer side of the dam-penetrating culvert, a culvert body crack is positioned in the dam-penetrating culvert, a channel is chiseled on the inner surface of a culvert body in the dam-penetrating culvert, a through hole is drilled along the culvert body crack, and a grouting pipe capable of grouting is inserted into the through hole and extends into the dike.

According to the utility model, when the culvert pipe in the dam soil body has a crack leakage problem, the culvert body crack is repaired and the seepage-proofing protection of the contact hole between the culvert body and the dam soil body is carried out, so that the crack repair and the seepage-proofing problem of the contact part when the culvert body cracks through the dam are solved. The method can achieve the purpose of effectively repairing cracks of the culvert body of the dike-crossing culvert, prevent water seepage in the dike and the dam from entering the dike-crossing culvert through seepage channels such as the culvert body cracks and prevent the contact cracks between the culvert body and dam filling from being damaged by contact seepage. The safe operation of dykes and dikes crossing the dikes and culverts can be effectively ensured, the construction of large-scale machinery excavation and backfilling is effectively reduced, the disturbance to the filling of the original dam is effectively reduced, the construction period is shortened, and the investment is reduced. The dam-penetrating culvert crack repairing structure is ingenious in design, convenient and practical.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the present invention;

FIG. 2 is a top plan view of a portion of the present invention being grouted into a borehole;

FIG. 3 is a partial sectional view of the present invention illustrating grouting of a borehole;

FIG. 4 is a perspective view of the caulking portion of the present invention;

figure 5 is a partial cross-sectional view of the gouging insert of the present invention.

Detailed Description

Example (b):

the structural schematic diagram of the utility model is shown in fig. 1, the dike penetrating culvert crack repairing structure of the utility model is characterized in that a dike 2 is positioned at the periphery of the outer side of the dike penetrating culvert 1, a culvert body crack 5 is positioned in the dike penetrating culvert 1, a culvert body inner surface chisel groove 3 is arranged in the dike penetrating culvert 1, a through hole 6 is drilled along the culvert body crack 5, and a grouting pipe 4 capable of grouting is inserted into the through hole 6 and extends into the dike 2.

The grouting pipe 4 can be pulled out after grouting is completed, and the through hole 6 is filled with the hemp threads 7.

Debris in the crack can be cleared up through culvert body internal surface chisel groove 3, and the crack width and trend are clear and definite, and follow-up filling grout along the crack of being convenient for, and also make things convenient for follow-up chisel groove to inlay and mend.

The chiseling 3 on the inner surface of the culvert body is sequentially provided with epoxy bottom sizing material 8, epoxy mortar 9, a rubber waterstop 10, a steel wire mesh 13 and fine aggregate concrete 14 from bottom to top (namely from the bottom to the top of the culvert).

The rubber waterstop 10 is fixed to the epoxy mortar 9 by using bolts 11 and angle steel 12.

In this embodiment, the dike-penetrating culvert 1 is located inside the dike 2, and the size of the dike-penetrating culvert 1 can meet the requirement of a manual construction space. The culvert body cracks 5 are positioned on the culvert body of the dike-crossing culvert 1, the development of the culvert body cracks 5 is basically stable, large expansion cannot occur, and the width is less than or equal to 5 cm.

In this embodiment, the culvert body internal surface chisel groove 3 is cut the groove along the 5 trends of culvert body crack and is handled, cuts a 500mm wide, the notch of dark 50mm to 5 both sides of culvert body crack.

In the embodiment, the drill hole 6 is drilled along the trend of the culvert body crack 5, the aperture is phi 25mm, the hole depth is 100cm, and the hole cleaning treatment is carried out after the hole forming. The grouting pipe 4 is pushed into the dike-penetrating culvert 1 at a certain angle, so that the grouting pipe 4 can penetrate through the dike-penetrating culvert 1 and stretch into the soil body of the dike 2 to perform duct grouting. The grouting pipe 4 is a steel pipe with the diameter of 20mm and the length of 80cm, and the outer side of the steel pipe is wrapped by a hemp rope before entering the hole.

In this embodiment, a plurality of culvert body cracks are located in the through-dike culvert 1, and each culvert body crack 5 is drilled with a through hole 6. The hole distance between the adjacent through holes 6 is 0.5m, and each through hole 6 is inserted into the grouting pipe 4 and the plurality of grouting pipes 4.

In the embodiment, the grouting material is clay cement slurry, the cement is 42.5R-grade ordinary portland cement, the cement mixing amount is 10% -5% of the mass of the clay dry material, the grouting initial pressure is 0.2MPa, the pressure is gradually increased to the designed pressure value, sudden pressurization cannot be realized, and the grouting pressure is not more than 0.5 MPa. Grouting is carried out for multiple times in each hole according to the principle of 'less grouting and more grouting', and the grouting pipe 4 is taken out after grouting is finished.

In the embodiment, the steel wire brush is adopted to thoroughly remove scum and loose layers in the gaps of the gouging 3 and the through hole 6 on the inner surface of the culvert body, and the through hole 6 is filled with the asphalt hemp threads. And (5) cleaning and airing the chisel opening, wherein the water content is not more than 6%.

In the embodiment, the inner surface of the culvert body after cleaning is chiseled with the thin and even groove 3, and the epoxy primer 8 is coated evenly on the base surface of the epoxy primer 8 by using the epoxy mortar 9 with the thickness of 20mm after the natural curing for 12 hours. The epoxy primer material 8 adopts the following mixing ratio: 425 cement: sand: ethylene diamine: dibutyl ester is 1:0.88:3:0.1: 0.2.

In this embodiment, when epoxy mortar 9 is tiled, rubber waterstop 10 is installed while being tiled, and simultaneously bolt 11 and angle steel 12 are used for fixing and tightening rubber waterstop 10, so that epoxy mortar 9 and rubber waterstop 10 are guaranteed to be tightly pasted. After the epoxy mortar 9 is naturally cured for 24 hours, the surface layer is fully paved with a steel wire mesh 13 (the specification is phi 6@150 multiplied by 150), and the steel wire mesh is covered with C30 fine-stone concrete 14 with the thickness of 90 mm.

According to the utility model, the cracks of the culvert body of the through culvert are repaired in a targeted manner in the through culvert, and meanwhile, the filling and grouting treatment is carried out on the holes among the filling soil around the culvert. After the method is implemented, because relevant operation can be carried out in the interior of the through culvert, large-scale machinery is not needed for excavation, backfilling, drilling and grouting construction, and the culvert body cracks which are basically expanded can be repaired in a targeted manner, so that the repairing effect is guaranteed. The construction period of repairing and reinforcing the dike-crossing culvert can be effectively shortened, the disturbance of reinforcing treatment on the original dike body soil can be avoided to form new cracks, the investment of engineering reinforcing treatment and seepage-proofing treatment can be greatly reduced, and the normal operation of the dike and the dike-crossing culvert can be effectively guaranteed.

The utility model relates to a repairing structure for repairing cracks of a culvert body of a crossing dike culvert by sinking the grooves and grouting along guide pipes around the cracks to prevent seepage, which can effectively repair and reinforce the cracks of the culvert body of the crossing dike culvert, perform grouting and seepage prevention treatment on the cracks between the culvert body and filling soil of a dike, and ensure the safe operation of the dike and the crossing dike culvert.

Claims (10)

1. The utility model provides a cross dike culvert crack repair structure, wherein the dyke is located and crosses the outside of dyke culvert all around, and culvert body crack is located and crosses the dyke culvert in, its characterized in that is equipped with culvert body internal surface chisel groove in crossing the dyke culvert to it has the through-hole to bore along culvert body crack, and the slip casting pipe that can carry out the slip casting inserts the through-hole, and stretches into in the dyke.

2. The structure for repairing cracks in a drift-through culvert according to claim 1, wherein the grouting pipe can be pulled out after grouting is completed and the through hole is filled with ramie fibers.

3. The structure for repairing cracks of a through dike culvert according to claim 1, wherein the chiseling on the inner surface of the culvert body is sequentially provided with epoxy primer, epoxy mortar, rubber waterstops, steel wire meshes and fine aggregate concrete from bottom to top.

4. The structure for repairing cracks of a drift-through culvert according to claim 3, wherein the rubber waterstop is fixed on the surface of the epoxy mortar by using bolts and angle steel.

5. The structure for repairing a crack of a dike-penetrating culvert according to claim 1, wherein the grooving on the inner surface of the culvert body is performed along the direction of the crack of the culvert body, and the grooving on the inner surface of the culvert body is a notch which is 500mm wide and 50mm deep and is chiseled on both sides of the crack of the culvert body.

6. The cross dike culvert crack repair structure according to any one of claims 1 to 5, wherein a plurality of culvert body cracks are located in the cross dike culvert, and each culvert body crack is drilled with a through hole.

7. The structure of repairing cracks in a dike-penetrating culvert according to claim 6, wherein the through holes are arranged along the direction of the cracks in the culvert body.

8. The structure of claim 6, wherein the distance between adjacent through holes is 0.5m, the diameter of the through hole is 25mm, and the depth of the through hole is 100 cm.

9. The structure for repairing cracks in a drift-through culvert according to claim 6, wherein the grouting pipe 4 is a steel pipe with a diameter of 20mm and a length of 80 cm.

10. The structure of repairing cracks in a drift-through culvert according to claim 6, wherein the grouting pipe is wrapped outside the steel pipe by a hemp rope before entering the hole.

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