CN112195932A - Fabricated waist rail reinforcement structure for deep foundation pit pile anchor support and construction method - Google Patents

Abstract

The invention provides an assembled waist rail reinforcement structure for a deep foundation pit pile anchor support and a construction method, wherein the assembled waist rail reinforcement structure for the deep foundation pit pile anchor support solves the problems of complicated construction and high difficulty of the conventional assembled waist rail reinforcement structure for a retaining structure through the structures of a first straight longitudinal rib, a first stirrup, a second straight longitudinal rib, a second stirrup, a splayed rib and a reinforcing rib; the purposes of rapid installation and configuration of the steel bars and convenient and fast steel bar binding of the assembled waist rail are achieved. The invention also comprises a construction method for reinforcing the assembled waist beam of the deep foundation pit pile anchor support, which can be used for quickly installing and configuring the reinforcing steel bars according to the designed assembled waist beam and has the obvious advantage of convenient reinforcement, the splayed foot bars and the splayed straight bars of the splayed reinforcing steel bars respectively ensure the requirements of bottom tension resistance and compression resistance of arc pile clamping surfaces at two sides, and the local compression resistance bearing capacity at the arc pile clamping surfaces can be enhanced by additionally arranging the reinforcing steel bar net formed by binding the reinforcing steel bars and the reinforcing steel bars.

Description

Fabricated waist rail reinforcement structure for deep foundation pit pile anchor support and construction method

Technical Field

The invention relates to the field of pile-anchor support, in particular to an assembled waist rail reinforcement structure of a deep foundation pit pile-anchor support and a construction method.

Background

In the foundation pit supporting engineering, a method for saving the construction period by an assembly construction technology on the premise of ensuring the engineering quality and the construction safety is widely applied and further innovated.

In the prior art, for example, a fabricated wale for a retaining structure in china with publication number CN208618420U is published as 2019.03.19, but because the fabricated wale is of a special-shaped structure, that is, the front and rear faces are parallel faces, but the left and right side faces are respectively formed by a plane and an inward-concave quarter cylindrical face, the reinforcement construction is complicated, and the difficulty is high. Therefore, optimizing the reinforcement mode of the assembling type waist rail with the special-shaped structure becomes a key link for improving the production efficiency of the assembling type waist rail and ensuring the safety of the assembling type waist rail, and is also a technical difficulty.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

In order to solve the problems of complicated construction and high difficulty of the conventional fabricated waist rail reinforcement for a retaining structure in the background art, the invention provides a fabricated waist rail reinforcement structure for a deep foundation pit pile anchor support, which comprises a first straight longitudinal rib, wherein the first straight longitudinal rib is connected with a second straight longitudinal rib and a splayed rib through a plurality of first stirrups; a plurality of second stirrups are connected between the first straight longitudinal ribs and the second straight longitudinal ribs; and reinforcing ribs are arranged on the splayed ribs.

Furthermore, the eight-character rib is composed of a horizontal eight-character straight rib and eight-character foot ribs connected with two ends of the eight-character straight rib at a certain included angle.

Furthermore, the splayed foot ribs are in a fold line shape formed by two sections of linear ribs or in a linear shape of one section of linear ribs.

Furthermore, a layer of reinforcing ribs is arranged on the inner side of the splayed foot ribs, the form and the number of the reinforcing ribs are matched with those of the splayed foot ribs, and the interval between the reinforcing ribs and the splayed foot ribs is 60-100 mm.

Furthermore, reinforcing ribs are arranged on the inner sides of the reinforcing ribs and the splayed foot ribs.

Furthermore, a plurality of first stirrups are adjacently arranged; and the second stirrups are arranged on two sides of the first stirrups.

The invention also provides a construction method of the fabricated wale reinforcement for the pile anchor support of the deep foundation pit, which comprises the following construction steps:

(1) arranging all the first stirrups in parallel according to a design interval, penetrating two first straight longitudinal reinforcements and two splayed reinforcements inwards, installing the two first straight longitudinal reinforcements and the two splayed reinforcements on four corners of the first stirrups according to a design requirement, binding and fixing, and then binding the rest first straight longitudinal reinforcements and the splayed reinforcements with the first stirrups respectively according to the design requirement;

(2) sleeving the two second straight longitudinal ribs into the first stirrup, and binding and connecting the two second straight longitudinal ribs with the first stirrup at the top layer and the bottom layer in the first stirrup according to the designed positions;

(3) installing the second stirrups on two sides of the first stirrups respectively according to the designed intervals, and binding and connecting the second stirrups with the first straight longitudinal reinforcements and the second straight longitudinal reinforcements;

(4) installing reinforcing ribs and reinforcing ribs on the inner sides of the splayed foot ribs of the splayed ribs, binding and connecting the reinforcing ribs and the reinforcing ribs to form a reinforcing mesh, and then fixing the reinforcing mesh;

(5) and installing reinforcing ribs on the splayed foot ribs, and binding and connecting the reinforcing ribs to finish the assembly type waist rail reinforcement construction.

The assembled waist rail reinforcement structure for the pile anchor support of the deep foundation pit solves the problems of complicated construction and high difficulty of the conventional assembled waist rail reinforcement for the retaining structure through the structures of the first straight longitudinal rib, the first stirrup, the second straight longitudinal rib, the second stirrup, the splayed rib and the reinforcing rib; the purposes of rapid installation and configuration of the steel bars and convenient and fast steel bar binding of the assembled waist rail are achieved.

The construction method for the fabricated wale reinforcement of the deep foundation pit pile anchor support, provided by the invention, can be used for rapidly installing and configuring the reinforcement according to the designed fabricated wale, and has the remarkable advantage of convenience and quickness in reinforcement binding; meanwhile, splayed foot ribs and splayed straight ribs of the splayed ribs respectively meet the requirements of tensile strength of the bottom and compression resistance of arc pile clamping surfaces on two sides, and the local compression resistance bearing capacity of the arc pile clamping surfaces can be enhanced by additionally arranging a reinforcing mesh formed by binding reinforcing ribs and reinforcing ribs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a plan view of a reinforcement provided by the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1 in accordance with the present invention;

FIG. 6 is a view of the shape of the splayed rib of the present invention;

fig. 7 is a diagram of the shape of a reinforcing rib of the present invention.

Fig. 8 is a plan view of another reinforcement bar with eight-shaped ribs according to the present invention.

Reference numerals:

11 reinforcing bar hole 12 arc card pile face 13 soil facing

14 wedge-shaped anchor pad 15 stiffened straight line surface 21 first straight longitudinal rib

22 second straight longitudinal rib 23 splayed rib 24 reinforced rib

25 reinforcing bars 26 first stirrups 27 second stirrups

231 eight-character foot rib 232 eight-character straight rib

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "couple" or "couples" and the like are not restricted to physical or mechanical connections, but may include electrical connections, optical connections, and the like, whether direct or indirect.

The invention provides an assembled waist rail reinforcement structure for pile anchor support of a deep foundation pit, which comprises a first straight longitudinal bar 21 as shown in figures 1-8, wherein the first straight longitudinal bar 21 is connected with a second straight longitudinal bar 22 and a splayed bar 23 through a plurality of first stirrups 26; a plurality of second stirrups 27 are connected between the first straight longitudinal ribs 21 and the second straight longitudinal ribs 22; the splayed rib 23 is provided with a reinforcing rib 25.

In specific implementation, the fabricated wale reinforcement structure of the deep foundation pit pile anchor support is arranged in an area formed by connecting a reinforcement penetrating hole 11, an arc-shaped pile clamping surface 12, a soil sticking surface 13, a wedge-shaped anchor pad 14 and a rigidity increasing straight line surface 15.

The assembled waist rail reinforcement structure for the pile anchor support of the deep foundation pit solves the problems of complicated construction and high difficulty of the conventional assembled waist rail reinforcement for the retaining structure through the structures of the first straight longitudinal rib, the first stirrup, the second straight longitudinal rib, the second stirrup, the splayed rib and the reinforcing rib; the purposes of rapid installation and configuration of the steel bars and convenient and fast steel bar binding of the assembled waist rail are achieved.

Preferably, the first straight longitudinal rib 21 and the second straight longitudinal rib 22 are linear longitudinal steel bars with hooks at two ends.

Preferably, as shown in fig. 6, the splayed rib 23 is composed of a horizontal splayed straight rib 232 and a splayed leg rib 231 connected with two ends of the splayed straight rib 232 at a certain included angle.

In specific implementation, the included angle between the splayed straight rib 232 and the splayed foot rib 231 is 126 °.

Preferably, as shown in fig. 7 and 8, the splayfoot rib 231 is a fold line formed by two straight ribs or a straight rib.

When the method is concretely implemented; the zigzag splayed foot rib 231 formed by two sections of straight-line-shaped ribs is provided with the reinforcing rib 24 at the joint of the straight-line-shaped ribs, because the arc-shaped pile clamping surface 12 is a quarter arc, the tangent line of the trisection point of the arc forms two sections of lines, and the shape of the two sections of lines is superposed with the splayed foot rib 231 formed by connecting the two sections of straight-line-shaped ribs, when the arc-shaped pile clamping surface 12 is the quarter arc, the included angle of the splayed foot rib 231 formed by connecting the two sections of straight-line-shaped ribs is fixed to be 158 degrees.

Preferably, as shown in fig. 6, a layer of reinforcing ribs 24 is arranged on the inner side of the splayed foot rib 231, the form and number of the reinforcing ribs 24 are matched with the splayed foot rib 231, and the reinforcing ribs 24 and the splayed foot rib 231 are spaced by 60mm-100 mm.

Preferably, as shown in fig. 1, a reinforcing rib 25 is provided inside the reinforcing rib 24 and the splayfoot rib 231.

Preferably, as shown in fig. 1 and 8, a plurality of the first stirrups 26 are adjacently arranged; a plurality of the second stirrups 27 are provided on both sides of the first stirrups 26.

The invention also provides a construction method of the fabricated wale reinforcement for the pile anchor support of the deep foundation pit, which comprises the following construction steps:

(1) arranging all the first stirrups in parallel according to a design interval, penetrating two first straight longitudinal reinforcements and two splayed reinforcements inwards, installing the two first straight longitudinal reinforcements and the two splayed reinforcements on four corners of the first stirrups according to a design requirement, binding and fixing, and then binding the rest first straight longitudinal reinforcements and the splayed reinforcements with the first stirrups respectively according to the design requirement;

(2) sleeving the two second straight longitudinal ribs into the first stirrup, and binding and connecting the two second straight longitudinal ribs with the first stirrup at the top layer and the bottom layer in the first stirrup according to the designed positions;

(3) installing the second stirrups on two sides of the first stirrups respectively according to the designed intervals, and binding and connecting the second stirrups with the first straight longitudinal reinforcements and the second straight longitudinal reinforcements;

(4) installing reinforcing ribs and reinforcing ribs on the inner sides of the splayed foot ribs of the splayed ribs, binding and connecting the reinforcing ribs and the reinforcing ribs to form a reinforcing mesh, and then fixing the reinforcing mesh;

(5) and installing reinforcing ribs on the splayed foot ribs, and binding and connecting the reinforcing ribs to finish the assembly type waist rail reinforcement construction.

The construction method for the fabricated wale reinforcement of the deep foundation pit pile anchor support, provided by the invention, can be used for rapidly installing and configuring the reinforcement according to the designed fabricated wale, and has the remarkable advantage of convenience and quickness in reinforcement binding; meanwhile, splayed foot ribs and splayed straight ribs of the splayed ribs respectively meet the requirements of tensile strength of the bottom and compression resistance of arc pile clamping surfaces on two sides, and the local compression resistance bearing capacity of the arc pile clamping surfaces can be enhanced by additionally arranging a reinforcing mesh formed by binding reinforcing ribs and reinforcing ribs.

Although terms such as a bar penetration hole, an arc-shaped pile surface, a soil sticking surface, a wedge-shaped anchor pad, a reinforced straight line surface, a first straight longitudinal bar, a second straight longitudinal bar, a splayed bar, a reinforcing bar, a first stirrup, a second stirrup, a splayed foot bar, a splayed straight bar and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides an assembled waist rail arrangement of reinforcement structure that deep basal pit stake anchor was strutted, its characterized in that: the steel bar comprises a first straight longitudinal bar (21), wherein the first straight longitudinal bar (21) is connected with a second straight longitudinal bar (22) and a splayed bar (23) through a plurality of first stirrups (26); a plurality of second stirrups (27) are connected between the first straight longitudinal bar (21) and the second straight longitudinal bar (22); and reinforcing ribs (25) are arranged on the splayed ribs (23).

2. The deep foundation pit pile-anchor supported assembled wale reinforcing structure according to claim 1, wherein: the splayed rib (23) is composed of a horizontal splayed straight rib (232) and splayed foot ribs (231) which are connected with two ends of the splayed straight rib (232) at a certain included angle.

3. The deep foundation pit pile-anchor supported assembled wale reinforcing structure according to claim 2, wherein: the splayed foot ribs (231) are in a fold line shape formed by two sections of linear ribs or in a linear shape of one section of linear rib.

4. The deep foundation pit pile-anchor supported assembled wale reinforcing structure according to claim 2, wherein: the splayed foot muscle (231) inboard is provided with one deck reinforcing muscle (24), reinforcing muscle (24) form and quantity with splayed foot muscle (231) looks adaptation, reinforcing muscle (24) with splayed foot muscle (231) interval 60mm-100 mm.

5. The deep foundation pit pile-anchor supported assembled wale reinforcing structure according to claim 4, wherein: reinforcing ribs (25) are arranged on the inner sides of the reinforcing ribs (24) and the splayed foot ribs (231).

6. The deep foundation pit pile-anchor supported assembled wale reinforcing structure according to claim 1, wherein: a plurality of first stirrups (26) are arranged adjacently; and a plurality of second stirrups (27) are arranged on two sides of the first stirrups (26).

7. A construction method for assembling type waist rail reinforcement of a deep foundation pit pile anchor support is characterized by comprising the following steps: the method comprises the following construction steps:

(1) arranging all the first stirrups in parallel according to a design interval, penetrating two first straight longitudinal reinforcements and two splayed reinforcements inwards, installing the two first straight longitudinal reinforcements and the two splayed reinforcements on four corners of the first stirrups according to a design requirement, binding and fixing, and then binding the rest first straight longitudinal reinforcements and the splayed reinforcements with the first stirrups respectively according to the design requirement;

(2) sleeving the two second straight longitudinal ribs into the first stirrup, and binding and connecting the two second straight longitudinal ribs with the first stirrup at the top layer and the bottom layer in the first stirrup according to the designed positions;

(3) installing the second stirrups on two sides of the first stirrups respectively according to the designed intervals, and binding and connecting the second stirrups with the first straight longitudinal reinforcements and the second straight longitudinal reinforcements;

(4) installing reinforcing ribs and reinforcing ribs on the inner sides of the splayed foot ribs of the splayed ribs, binding and connecting the reinforcing ribs and the reinforcing ribs to form a reinforcing mesh, and then fixing the reinforcing mesh;

(5) and installing reinforcing ribs on the splayed foot ribs, and binding and connecting the reinforcing ribs to finish the assembly type waist rail reinforcement construction.

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