CN211395213U - Road shoulder sheet wall large deformation reinforcing structure - Google Patents

Abstract

A large-deformation reinforcing structure for a road shoulder pile plate wall is used for effectively controlling deformation of reinforcing piles, and is convenient to construct and good in economical efficiency. The road embankment filling structure comprises existing reinforcing piles, an embankment filling body and existing soil retaining plates, wherein the existing reinforcing piles are arranged at intervals along the road direction, the lower portions of the existing reinforcing piles are embedded into a foundation, the existing soil retaining plates are arranged between adjacent existing reinforcing piles, and the embankment filling body is filled on the foundation on the inner sides of the existing reinforcing piles and the existing soil retaining plates in a layered mode. The reinforced concrete stress beam abutting against each existing reinforcing pile is arranged on the foundation on the outer side of each existing reinforcing pile, a supporting body is filled in a gap between the rear wall of each reinforced concrete stress beam and the front wall of each existing retaining plate between every two adjacent existing reinforcing piles, reinforcing anchor cables with the axes inclined downwards are arranged among the reinforcing piles at intervals, the inner ends of the reinforcing anchor cables penetrate through the supporting bodies and the retaining plates to be anchored in the foundation, and the outer ends of the reinforcing anchor cables are anchored on the reinforced concrete stress beams after prestress is applied.

Description

Road shoulder sheet wall large deformation reinforcing structure

Technical Field

The utility model relates to geotechnical engineering, in particular to curb pile sheet wall reinforcing structure that warp greatly.

Background

The application of the road shoulder pile plate wall in the slope contraction and reinforcement of the embankment is very wide, but some problems also occur in the engineering practice: (1) when the method is applied to a soil foundation, the overconsolidation pile generates large deformation due to the non-uniformity and uncertainty of the foundation, the deterioration of the surrounding environment, or the problem of construction quality and the like; (2) the soil foundation can sink due to the weight of the embankment filling body, and the foundation outside the reinforcing pile does not sink, so that the foundation inside the reinforcing pile forms concave deformation, water is accumulated in the concave foundation and the foundation can be softened, and as a result, the foundation is rich in water and the reinforcing pile generates large deformation; (5) when the pile is applied to a steep slope roadbed, the steep slope is affected by external disturbance to cause that the protective front edge of the reinforcing pile is not enough, so that the reinforcing pile generates large deformation. When the deformation of the reinforcing pile cannot tend to be stable and the condition of earth filling back pressure is not available, an effective road shoulder pile plate wall large deformation reinforcing structure and a construction method must be provided, and the application has the characteristics of convenience in construction, capability of effectively controlling deformation, economy, environmental protection, contribution to popularization and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a curb pilework wall warp reinforced structure greatly is provided to make the deformation of effective control reinforcing pile, construction convenience moreover, economic nature is good.

The utility model provides a technical scheme as follows that above-mentioned technical problem took:

the utility model discloses a big reinforced structure that warp of curb pile siding wall, curb pile siding wall include existing reinforcement pile, embankment filling body and existing fender apron, and existing reinforcement pile road direction interval along the line sets up, and in its lower part buried the ground, existing fender apron was established between adjacent existing reinforcement pile, and embankment filling body layering is filled on existing reinforcement pile, the inboard ground of existing fender apron, characterized by: the reinforced concrete stress beam abutting against each existing reinforcing pile is arranged on the foundation on the outer side of each existing reinforcing pile, a supporting body is filled in a gap between the rear wall of each reinforced concrete stress beam and the front wall of each existing retaining plate between every two adjacent existing reinforcing piles, reinforcing anchor cables with the axes inclined downwards are transversely arranged among the reinforcing piles at intervals, the inner ends of the reinforcing anchor cables penetrate through the supporting bodies and the retaining plates to be anchored in the foundation, and the outer ends of the reinforcing anchor cables are anchored on the reinforced concrete stress beams after prestress is applied.

The reinforcing anchor cable penetrates through a water drainage hole of the existing soil retaining plate at the lower layer, the front part of the reinforcing anchor cable is sleeved into a steel pipe with the axes coincident with each other, and the steel pipe extends to the back of the water drainage hole from the front side wall of the reinforced concrete stress beam.

The utility model has the advantages that the reinforced concrete stress beam which is close to each existing reinforcing pile is arranged on the outer foundation of the existing reinforcing pile, the reinforced concrete stress beam has inward horizontal tension through the effect of the reinforcing anchor cable, the reinforced concrete stress beam effectively contacts with the existing reinforcing pile so as to effectively transmit the tension to the existing reinforcing pile, and the existing reinforcing pile receives inward constraint force so as to effectively control the unfavorable deformation generated outwards; the construction is convenient, the deformation control effect is good, and the method has the characteristics of economy and environmental protection.

Drawings

The specification includes the following three drawings:

fig. 1 is a schematic cross-sectional view of a large deformation reinforcing structure for a road shoulder pile plate wall of the present invention;

fig. 2 is a schematic plan view of a large deformation reinforcing structure for a road shoulder pile plate wall of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 3.

The component names and corresponding labels are shown in the figure: the concrete foundation comprises existing reinforcing piles 1, an embankment filling body 2, existing soil retaining plates 3, reinforcing anchor cables 4, a supporting structure 5, a stress beam 6, steel pipes 7, water drainage holes 8 and a foundation A.

Detailed Description

The invention is further described with reference to the following figures and examples:

referring to fig. 1 and 2, the utility model discloses a big reinforced structure that warp of curb pile siding wall, curb pile siding wall include existing reinforcement pile 1, embankment filling body 2 and existing fender board 3, and existing reinforcement pile 1 line way direction interval sets up, and in ground A was buried to its lower part, existing fender board 3 was established between adjacent existing reinforcement pile 1, and embankment filling body 2 layering is filled on existing reinforcement pile 1, the inboard ground A of existing fender board 3. The reinforced concrete stress beam 6 abutting against each existing reinforcing pile 1 is arranged on the foundation A on the outer side of each existing reinforcing pile 1, a supporting body 5 is filled in a gap between the rear wall of each reinforced concrete stress beam 6 and the front wall of each existing soil retaining plate 3 between every two adjacent existing reinforcing piles 1, reinforcing anchor cables 4 with the axes inclined downwards are transversely arranged among the reinforcing piles 1 at intervals, the inner ends of the reinforcing anchor cables 4 penetrate through the supporting bodies 5 and the soil retaining plates 3 and are anchored in the foundation A, and the outer ends of the reinforcing anchor cables 4 are anchored on the reinforced concrete stress beams 6 after prestress is applied. The reinforced concrete stress beam 6 has inward horizontal tension under the action of the reinforcing anchor cables 4, the reinforced concrete stress beam 6 is effectively contacted with the existing reinforcing pile 1, so that the tension can be effectively transmitted to the existing reinforcing pile 1, the existing reinforcing pile 1 is subjected to inward constraint force, the outward unfavorable deformation can be effectively controlled, and the deformation control effect is good.

Referring to fig. 3, the reinforcing anchor lines 4 pass through the drain holes 8 of the lower existing soil guard plate 3. In order to keep the reinforced anchor cable 4 straight, the front part of the reinforced anchor cable 4 is sleeved into a steel pipe 7 with the axes coincident with each other, and the steel pipe 7 extends from the front side wall of the reinforced concrete stress beam 6 to the back of the water drainage hole 8. The support body 5 may be formed of backfilled concrete or grouted rubble.

Referring to fig. 1 to 3, the utility model relates to a road shoulder sheet wall large deformation reinforced structure's construction method, including following step:

firstly, a hole expanding machine is adopted to expand the drain holes 8 of the first row of the existing retaining plates 3 on the foundation A, so that the hole diameter of the drain holes meets the design requirement;

secondly, drilling an anchor cable into the foundation A according to a certain downward inclination angle by a geological drilling machine after penetrating through the water drainage hole after reaming, and drilling while following the anchor cable until the anchor cable reaches a design position if the foundation is easy to collapse;

thirdly, placing the reinforced anchor cable 4 in the anchor cable drill hole to the bottom of the hole, and grouting the anchor cable drill hole with pressure;

fourthly, the exposed section of the reinforced anchor cable 4 is sleeved into the steel pipe 7, and the rear end of the steel pipe 7 is inserted into the water drainage hole 8;

binding a reinforcement cage of a reinforced concrete stress beam 6 on the foundation A outside the existing reinforcing pile 1, fixedly connecting a steel pipe 7 with the reinforcement cage, and enabling the axis of the steel pipe 7 to coincide with the axis of the reinforcing anchor cable 4;

sixthly, pouring concrete of the reinforced concrete stress beam 6;

seventhly, backfilling a gap between the reinforced concrete stress beam 6 and the existing retaining plate 3 by using concrete or mortar rubbles to form a support body 5;

eighthly, after the strength of the reinforced concrete stressed beam 6, the support body 5 and the reinforcing anchor cable 4 grouting body reaches 90% of the design strength, tensioning the reinforcing anchor cable 4 to apply prestress, and locking and anchoring on the reinforced concrete stressed beam 6.

The above is only used for illustrating the utility model relates to a some principles of road shoulder sheet pile wall reinforcement structure that warp greatly, not will the utility model discloses the limitation show with concrete structure and construction method application scope in, so all corresponding amendments and equivalents that probably are utilized all belong to the utility model discloses the patent range who applies for.

Claims (3)

1. The utility model provides a big reinforced structure that warp of curb pilework, curb pilework (2) and existing fender native board (3) are drawn together to existing reinforcement stake (1), embankment filler (2), existing reinforcement stake (1) sets up along the line direction interval, its lower part is buried in ground (A), existing fender native board (3) are established between adjacent existing reinforcement stake (1), embankment filler (2) are filled in the existing reinforcement stake (1), on the inboard ground (A) of existing fender native board (3) in layers, characterized by: the reinforced concrete bearing beam (6) abutting against each existing reinforcing pile (1) is arranged on the foundation (A) on the outer side of each existing reinforcing pile (1), supporting bodies (5) are filled in gaps between the rear wall of each reinforced concrete bearing beam (6) and the front wall of each existing soil retaining plate (3) between every two adjacent existing reinforcing piles (1), reinforcing anchor cables (4) with the axes inclined downwards are transversely arranged among the reinforcing piles (1), the inner ends of the reinforcing anchor cables (4) penetrate through the supporting bodies (5) and the soil retaining plates (3) and are anchored in the foundation (A), and the outer ends of the reinforcing anchor cables (4) are anchored on the reinforced concrete bearing beams (6) after prestress is applied.

2. The large-deformation reinforcing structure for the road shoulder pile plate wall as claimed in claim 1, wherein: the reinforcing anchor cable (4) penetrates through a water drainage hole (8) of the existing soil retaining plate (3) at the lower layer, the front part of the reinforcing anchor cable (4) is sleeved into a steel pipe (7) with the axes coincident with each other, and the steel pipe (7) extends to the back of the water drainage hole (8) from the front side wall of the reinforced concrete stress beam (6).

3. The large-deformation reinforcing structure for the road shoulder pile plate wall as claimed in claim 1, wherein: the support body (5) is formed by backfilled concrete or grouted rubble.

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