CN218952238U - Micro-disturbance assembled soil retaining structure - Google Patents

Abstract

The utility model relates to a micro-disturbance assembly type soil retaining structure which comprises double-row piles, rigid frame beams and baffles, wherein the tops of the double-row piles are connected through the rigid frame beams to form an integral frame, the thickness of the baffles is matched with a gap between the double-row piles, the baffles are arranged between the double-row piles and below the rigid frame beams, and the baffles are arranged along the extending direction of a soil retaining surface. The utility model has the advantages that: 1) The double-row piles are combined with the prefabricated baffle plates, so that the double-row piles are high in rigidity and deformation resistance, the double-row piles are used as the support of the prefabricated baffle plates, the force transmission path of the structural system is clear, and the whole structure has good economy; 2) The double-row piles can be arranged outside a construction space limited area, and a static pressure device is adopted to construct a baffle in the space limited area, so that the double-row piles have applicability in various complex environments such as under-bridge and the like; 3) The prefabricated parts can be partially used, the modes of factory production and field installation construction can be realized, the rapid and large-scale construction is achieved, and the construction period and the construction cost are saved.

Description

Micro-disturbance assembled soil retaining structure

Technical Field

The utility model relates to the technical field of retaining structures, in particular to a micro-disturbance assembly type retaining structure.

Background

The soil retaining structure is one kind of structure for supporting, reinforcing and preventing slump and sliding to maintain its stability. With urban development and construction, the number of supporting structures closely abutting on the existing building or land shortage is increased, and the applicability of the traditional cantilever or buttress retaining wall is limited due to the large construction temporary occupied area, large excavation backfill engineering quantity, low effective supporting height and the like; the retaining height of the pile plate retaining wall is improved, but the applicability of the pile foundation construction is greatly limited due to the problems of higher requirements on construction tools and construction space, long construction period, high construction cost and the like.

In the prior art, there is a frame type double row sheet pile soil blocking structure including a plurality of rows of sheet pile structures and tie beams, wherein both ends of the tie beams are respectively fixed with the row sheet pile structures and the spacing sheet pile structures, so that the row sheet pile structures and the spacing sheet pile structures can mutually support the plurality of rows of sheet pile structures including the row sheet pile structures and the first crown beams alternately arranged along a width direction of a river bank, wherein a plurality of row sheet piles are continuously arranged along a length direction of the river bank, the first crown beams fix pile heads of all row sheet piles including the spacing sheet piles and the second crown beams, wherein a plurality of spacing sheet piles are arranged at intervals along the length direction of the river bank, and the second crown beams fix pile heads of all spacing sheet piles.

However, the structure is difficult to implement under the condition of limited construction space, and meanwhile, large-scale soil excavation and filling are needed, so that the environment influence is large, and the structure is mainly a cast-in-situ structure and has long construction period.

Disclosure of Invention

According to the defects of the prior art, the utility model provides the micro-disturbance assembled retaining structure, and the assembled structure of the double-row piles combined with the prefabricated baffle plate can be used for construction in a static pressure mode, so that the structure has the characteristics of micro-disturbance, rapidness in construction and construction space saving.

The utility model is realized by the following technical scheme:

a perturbation assembled soil guard structure, characterized in that: including double row pile, rigid frame roof beam and baffle, the top of double row pile passes through rigid frame roof beam connects constitutes whole frame, the thickness of baffle with clearance phase-match between the double row pile, the baffle sets up between the double row pile and be located the below of rigid frame roof beam, the baffle is followed the extending direction of retaining face arranges.

Two or more groups of double-row piles are arranged along the extending direction of the plate body of the baffle plate, the double-row piles are arranged at intervals, and the baffle plate is limited between the double-row piles.

A plurality of baffles are arranged between the double-row piles in a superposition way along the depth direction.

The bottom of the baffle plate at the bottom is in a wedge angle or a cone tip shape.

The bottom of the baffle plate positioned at the bottom is welded with a steel cutting edge.

The double-row piles and the rigid frame beams are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures.

And arranging continuous baffles along the extending direction of the soil retaining surface, wherein each baffle is arranged between the corresponding double-row piles.

And a through water drain hole is reserved on the baffle plate.

The utility model has the advantages that:

1) The double-row piles are combined with the prefabricated baffle plates, so that the double-row piles are high in rigidity and deformation resistance, the double-row piles are used as the support of the prefabricated baffle plates, the force transmission path of the structural system is clear, and the whole structure has good economy;

2) The double-row piles can be arranged outside a construction space limited area, and a static pressure device is adopted to construct a baffle in the space limited area, so that the double-row piles have applicability in various complex environments such as under-bridge and the like;

3) The prefabricated parts can be partially used, the mode of factory production and field installation construction can be realized, the rapid and large-scale construction is realized, and the construction period and the construction cost are saved;

4) The construction site mainly carries out pile foundation construction and baffle static pressure operation, does not involve a large amount of earth excavation backfill, has small influence on environment and has the characteristic of micro disturbance.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a top plan view of the structure of the present utility model;

FIG. 3 is an isometric view of the present utility model;

fig. 4 is a schematic structural view of a bottom baffle plate according to the present utility model.

Detailed Description

The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:

as shown in fig. 1-4, the labels 1-6 are shown as: the steel frame comprises a rigid frame beam 1, a jack 2, double-row piles 3, a baffle 4, a baffle 5 and steel cutting edges 6.

Examples: as shown in fig. 1 to 4, the slightly disturbed assembled retaining structure in this embodiment is composed of a rigid frame beam 1, double row piles 3 and a baffle 4 (baffle 5). Wherein, the double row pile 3 has two sets of along retaining direction interval arrangement, and the reservation clearance is installed as the later stage baffle between every row pile body and is reserved vertical groove. The tops of the double row piles 3 are fixedly connected through the rigid frame beams 1 to form a stable frame.

A baffle plate which is transversely arranged is arranged in a reserved vertical groove of the double-row pile 3, wherein the baffle plate 5 is a first baffle plate at the bottom, and a wedge angle is arranged below the baffle plate so as to facilitate static pressure to enter the soil, and different wedge directions can be used, and cone tips can also be used; if the stratum is harder, the steel blade feet 6 can be welded at the bottom of the wedge-shaped angle, and the auxiliary baffle plate can be smoothly pressed into the soil by static pressure, as shown in figure 4. Each of the remaining baffles located above baffle 5 is a generally rectangular baffle 4. The baffle 5 and a plurality of baffles 4 are sequentially embedded into the soil in a downward static pressure mode to form a complete retaining plate taking double-row piles 3 at two ends as supports, and the retaining function of the retaining plate is achieved.

In the present embodiment, the static pressure construction of the baffle 4 and the baffle 5 is achieved by providing the jack 2 at the bottom of the rigid frame beam 1. Specifically, the jack 2 is inverted right above the baffle installation reserve vertical groove, which can use the double row piles 3 and the rigid frame beams 1 as reaction devices to static the baffle 4 (baffle 5) downward.

The construction method of the embodiment comprises the following construction steps:

1) And (3) leveling the field, defining the positioning of double piles 3, reserving the distance of vertical grooves among piles, and constructing pile foundations.

2) Erecting a template, and constructing a pile top rigid frame beam 1 to enable the tops of the double-row piles 3 to be fixedly connected to form an integral frame.

3) And (3) prefabricating baffle plates in factories and maintaining the baffle plates to the design strength while constructing the site pile foundation and the rigid frame beam.

4) An inverted jack is arranged in a vertical groove between the double-row piles 3 and at the bottom of the rigid frame beam 1, a baffle plate 5 provided with a steel blade foot 6 is firstly arranged in the vertical groove, and the baffle plate is pressed down into a soil layer by the force applied by the jack 2. In the static pressure process, the jacking travel of the jacks 2 on two sides is controlled in the same way, so that the baffle keeps the horizontal static pressure, and meanwhile, after static pressure construction of one baffle is completed, the top surface of the baffle is cleaned, and residue soil is prevented from remaining on the contact surface between the baffles.

5) After the jack 2 returns, a baffle 4 is placed above the baffle 5, the jack 2 directly presses the baffle 4 downwards, so that the baffle 4 and the baffle 5 continuously enter the soil layer downwards;

6) After the jack 2 returns, another baffle plate 4 is placed on the baffle plate 4, and the steps are repeated until the baffle plate 4 is fully distributed with the whole vertical groove from bottom to top, so that a complete and continuous soil retaining plate with two ends supported on the double-row piles 3 is formed.

In the construction stage, the double-row piles 3 and the rigid frame beams 1 bear the upward pulling force under the action of the jacks 2, the upward pulling force can be borne by the double-row piles 3, the pulling-resistant bearing capacity of the double-row piles 3 is required to be checked during structural design, the requirements are met, and the stability of the whole structure of the soil retaining structure is ensured.

The embodiment is implemented in specific manner: the rigid frame beam 1 and the double-row piles 3 are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures, so that the construction efficiency is effectively improved.

As shown in fig. 2 and 3, in this embodiment, two sets of double piles 3 are disposed along the extending direction of the plate body (extending direction of the retaining surface) of the baffle, but in practical construction, in order to further improve the performance of the retaining structure, more than two sets of double piles 3 may be disposed, and each double pile 3 is uniformly spaced, so that the baffle may be limited between each set of double piles, thereby improving the retaining effect.

Similarly, in this embodiment, a jack 2 is disposed below the rigid frame beam 1, but when the thickness of the plate body of the baffle is large, two jacks 2 spaced along the thickness direction of the plate body of the baffle may be used to perform static pressure on the baffle, so as to ensure the embedding effect of the baffle.

Fig. 3 shows a retaining structure formed by a set of double piles 3 and retaining plates, in which the retaining plates are arranged along the extending direction of the retaining surface in actual construction, and each retaining plate is formed continuously to continuously support the retaining surface.

And a through water drain hole is reserved on the baffle plate, so that the later-stage water drainage requirement is met.

Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.

Claims (8)

1. A perturbation assembled soil guard structure, characterized in that: including double row pile, rigid frame roof beam and baffle, the top of double row pile passes through rigid frame roof beam connects constitutes whole frame, the thickness of baffle with clearance phase-match between the double row pile, the baffle sets up between the double row pile and be located the below of rigid frame roof beam, the baffle is arranged along the extending direction of retaining face.

2. A perturbation assembled soil guard structure according to claim 1, wherein: two or more groups of double-row piles are arranged along the extending direction of the plate body of the baffle plate, the double-row piles are arranged at intervals, and the baffle plate is limited between the double-row piles.

3. A perturbation assembled soil guard structure according to claim 1, wherein: a plurality of baffles are arranged between the double-row piles in a superposition way along the depth direction.

4. A perturbation-fabricated soil guard structure according to claim 3, wherein: the bottom of the baffle plate at the bottom is in a wedge angle or a cone tip shape.

5. A perturbation assembled soil guard structure according to claim 4, wherein: the bottom of the baffle plate positioned at the bottom is welded with a steel cutting edge.

6. A perturbation assembled soil guard structure according to claim 1, wherein: the double-row piles and the rigid frame beams are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures.

7. A perturbation assembled soil guard structure according to claim 1, wherein: and arranging continuous baffles along the extending direction of the soil retaining surface, wherein each baffle is arranged between the corresponding double-row piles.

8. A perturbation assembled soil guard structure according to claim 1, wherein: and a through water drain hole is reserved on the baffle plate.

Images