CN113445495A

CN113445495A - Flat and long slide-resistant pile and construction method thereof

Info

Publication number: CN113445495A
Application number: CN202110677645.9A
Authority: CN
Inventors: 岳大昌; 闫北京; 贾欣媛; 朱维新; 廖必成; 李明; 唐延贵; 谢小路; 王显兵; 李威
Original assignee: CHENGDU SIHAI GEOTECHNICAL ENGINEERING CO LTD
Current assignee: CHENGDU SIHAI GEOTECHNICAL ENGINEERING CO LTD
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-09-28

Abstract

The invention discloses a flat and long anti-sliding pile and a construction method thereof, comprising a square pile, a semi-circular pile and a reinforcing bar cage. There are said steel cages. Compared with manual digging piles, the pile type of the present invention adopts rotary digging to form holes, which saves labor costs, increases construction efficiency, and reduces construction costs. large bending moment.

Description

Flat and long slide-resistant pile and construction method thereof

Technical Field

The invention relates to the field of slide-resistant piles, in particular to a flat and long slide-resistant pile and a construction method thereof.

Background

In landslide control, the slide-resistant pile can provide large sliding resistance, the slide-resistant pile is used from the 20 th century to the 60 th century, the slide-resistant pile is used generally in landslide control, and due to the fact that most pile types are designed to be rectangular and are difficult to operate mechanically, manual excavation is mostly adopted at present, manual excavation is very difficult under the condition that rocks of a sliding bed are hard, blasting modes are adopted in the previous years, but in recent years, blasting material management and control are strict, blasting is very difficult, and therefore the slide-resistant pile which is economically reasonable in stress is guaranteed to be provided, and mechanical excavation is adopted.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a long and flat slide pile and a construction method thereof.

The invention realizes the purpose through the following technical scheme:

the utility model provides a flat long slide-resistant pile, includes square pile, semicircle stake, steel reinforcement cage, the square pile both ends are provided with the semicircle stake, the square pile the semicircle stake is inside to be provided with the steel reinforcement cage.

Preferably: the square pile and the semicircular pile are integrally formed by pouring concrete.

So set up, integrated into one piece has guaranteed overall structure nature.

Preferably: the reinforcement cage is pre-buried in the pile body formed by the square pile and the semicircular pile.

So set up, utilize the steel reinforcement cage can improve pile body intensity and characteristic itself.

Preferably: the length of the cross section of the pile body formed by the square piles and the semicircular piles is 1.5 or 2 times of the width.

So set up, can provide bigger moment of flexure by both sides semicircular structure cooperation center square structure.

A construction method of a flat long slide-resistant pile comprises the following steps:

a. firstly, processing a first pile forming hole in a slope surface to-be-processed position by using a rotary digging machine;

b. putting a steel pile casing into the first pile hole for positioning the second pile forming hole;

c. then processing a second pile forming hole at the position to be processed on the slope surface by using a rotary digging machine;

d. replacing the pile forming hole with a rotary drilling cutting drilling tool, and cutting the soil body of the first pile forming hole and the second pile forming hole;

e. then, slag is removed from the pile hole by using a slag removing drilling tool;

f. repeating the steps d and e, and gradually cutting and cleaning the soil body between the first pile forming hole and the second pile forming hole so as to complete the structure of the whole pile hole;

g. putting a reinforcement cage with a proper pile hole size into the formed pile hole;

h. and pouring concrete in the pile hole.

The rotary cutting drilling tool comprises an upper connecting assembly, a barrel body assembly connected to the upper connecting assembly and used for rotary cutting, and a positioning and adjusting support frame arranged on the outer side of the joint of the upper connecting assembly and the barrel body assembly and used for positioning;

the upper connecting assembly comprises a square head and a reinforcing rib plate, the square head is connected above the bottom plate in a welding mode, the reinforcing rib plate is arranged in the diagonal direction of the square head, the central shaft penetrates through the bottom plate and is welded below the bottom plate, and the sliding sleeve is sleeved on the central shaft;

the positioning and adjusting support frame comprises an arc plate and a support bottom plate, the arc plate is symmetrically welded at two ends of the support bottom plate, guide cones are welded at the upper end and the lower end of the arc plate, a support rib plate and an elliptical reinforcing ring are welded at the upper end of the support bottom plate, an adjusting orifice plate is symmetrically welded at the middle part of the support bottom plate, a positioning pin penetrates through the adjusting orifice plate and is inserted into a pin hole of the sliding sleeve, and a pin locking piece is installed at the outer side of the adjusting orifice plate;

the cylinder body assembly comprises an upper panel and an upper cylinder body, the upper panel is connected above the upper cylinder body in a welding mode, a central shaft penetrates through a central hole of the upper panel and is welded above the upper panel, the lower cylinder body is welded below the upper cylinder body, round-seat cutting teeth are uniformly distributed below the lower cylinder body, and wear-resistant strips are arranged on the outer side of the upper cylinder body.

The central shaft can rotate around the sliding sleeve to transmit the torque of the upper connecting assembly to the cylinder body assembly; an oval long groove is formed in the middle of the supporting bottom plate, and the sliding sleeve can slide left and right in the oval long groove; the adjusting hole plate can realize the positioning adjustment of the drilling tool by changing the insertion position of the positioning pin; the guide cone can guide in an up-and-down direction, so that the scraping damage of the arc plate to the hole wall is reduced; the wear-resistant strips are uniformly welded on the outer side of the upper barrel body in a spiral shape.

Compared with the prior art, the invention has the following beneficial effects:

1. compared with a manual hole digging pile, the pile type adopts rotary digging to form a hole, thereby saving labor cost, increasing construction efficiency and reducing construction cost;

2. the pile type has better stress effect than a round pile with the same phase section and can provide larger bending moment.

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 only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an oblong slide-resistant pile according to the present invention;

fig. 2 is a schematic view of the internal structure of the prolate anti-slide pile according to the invention;

fig. 3 is a top view of an oblong slide-resistant pile according to the invention.

The reference numerals are explained below:

1. square piles; 2. semi-circular piles; 3. and (4) a reinforcement cage.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be further described with reference to the accompanying drawings in which:

example 1

As shown in fig. 1-3, a long and flat slide-resistant pile comprises a square pile 1, a semicircular pile 2 and a reinforcement cage 3, wherein the semicircular pile 2 is arranged at two ends of the square pile 1, and the reinforcement cage 3 is arranged inside the square pile 1 and the semicircular pile 2.

Preferably: the square piles 1 and the semicircular piles 2 are integrally formed by pouring concrete, and the integral structure is guaranteed by integral forming; the reinforcement cage 3 is pre-embedded in a pile body formed by the square pile 1 and the semicircular pile 2, and the strength and the characteristics of the pile body can be improved by utilizing the reinforcement cage 3; the length of the cross section of the pile body formed by the square piles 1 and the semicircular piles 2 is 1.5 or 2 times of the width of the pile body, and the semicircular structures on two sides are matched with the central square structure to provide larger bending moment.

g. lowering the reinforcement cage 3 with proper pile hole size into the formed pile hole;

h. and pouring concrete in the pile hole.

the positioning and adjusting support frame comprises an arc plate and a support bottom plate, the arc plate is symmetrically welded at two ends of the support bottom plate, guide cones are welded at the upper end and the lower end of the arc plate, a support rib plate and an elliptical reinforcing ring are welded at the upper end of the support bottom plate, an adjusting orifice plate is symmetrically welded at the middle part of the support bottom plate, a positioning pin penetrates through the adjusting orifice plate and is inserted into a pin hole of the sliding sleeve, and a pin locking piece is arranged at the outer side of the adjusting orifice plate;

the barrel body subassembly includes top panel, last barrel body, and the top panel is connected in last barrel body top through the welded mode, and the center pin passes the top panel centre bore and welds in the top panel top, and lower barrel body welds in last barrel body below, and the even distribution of circle seat pick is in barrel body below down, and the last barrel body outside is provided with wear resistant strip.

The central shaft can rotate around the sliding sleeve to transmit the torque of the upper connecting assembly to the cylinder body assembly; an oval elongated slot is formed in the middle of the supporting bottom plate, and the sliding sleeve can slide left and right in the oval elongated slot; the adjusting hole plate can realize the positioning adjustment of the drilling tool by changing the insertion position of the positioning pin; the guide cone can guide in an up-and-down direction, so that the scraping damage of the arc plate to the hole wall is reduced; wear resistant strip is the even welding in upper barrel outside of being heliciform.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A flat and long anti-sliding pile is characterized in that: it comprises a square pile (1), a semicircular pile (2), a reinforcing bar cage (3), and the two ends of the square pile (1) are provided with the semicircular pile (2). ), the reinforcing cage (3) is provided inside the square pile (1) and the semi-circular pile (2).

2 . The flat and long anti-sliding pile according to claim 1 , wherein the square pile ( 1 ) and the semi-circular pile ( 2 ) are integrally formed by pouring concrete. 3 .

3. An oblong anti-sliding pile according to claim 1, characterized in that: the reinforcement cage (3) is pre-buried in the pile body formed by the square pile (1) and the semi-circular pile (2). .

4. The flat and long anti-sliding pile according to claim 1, characterized in that: the length of the cross section of the pile body formed by the square pile (1) and the semi-circular pile (2) is 1.5 or 2 times the width .

5. a construction method of flat and long anti-sliding pile, is characterized in that: comprise the following steps:

a. First, use a rotary excavator to process the first pile hole on the slope to be processed;

b. Put a steel casing into the first pile hole for positioning the second pile hole;

c. Use the rotary excavator to process the second pile hole at the position to be processed on the slope;

d. Replace the rotary cutting drilling tool to cut the soil of the first pile hole and the second pile hole;

e. Then use the slag cleaning tool to clean the slag in the pile hole;

f. Repeat steps d and e to gradually cut and clean the soil between the first pile hole and the second pile hole, so as to complete the structure of the overall pile hole;

g. Lower the reinforcement cage (3) of suitable pile hole size into the formed pile hole;

h. Concrete is poured into the pile hole.

6 . The construction method of an oblong anti-sliding pile according to claim 5 , wherein the rotary cutting drilling tool comprises an upper connecting assembly, and a a barrel assembly, a positioning adjustment support frame installed on the outer side of the connection between the upper connecting assembly and the barrel assembly for positioning;

The upper connecting assembly includes a square head and a reinforcing rib plate, the square head is connected above the bottom plate by welding, a reinforcing rib plate is arranged in the diagonal direction of the square head, and the central axis passes through the bottom plate and is welded to the bottom plate Below, the sliding sleeve is fitted on the central shaft;

The positioning and adjusting support frame includes a circular arc plate and a supporting bottom plate, the circular arc plate is symmetrically welded on both ends of the supporting bottom plate, a guide cone is welded on the upper and lower ends of the circular arc plate, and a supporting rib plate is welded on the upper end of the supporting bottom plate. and an elliptical reinforcing ring, the adjustment orifice plate is symmetrically welded to the middle of the support bottom plate, the positioning pin is inserted into the pin hole of the sliding sleeve through the adjustment orifice plate, and the pin locking piece is installed on the outside of the adjustment orifice plate;

The barrel assembly includes an upper panel and an upper barrel, the upper panel is connected above the upper barrel by welding, and the central axis passes through the center hole of the upper panel and is welded above the upper panel , the lower cylinder body is welded under the upper cylinder body, the round seat picks are evenly distributed under the lower cylinder body, and the outer side of the upper cylinder body is provided with wear-resistant strips.

7 . The construction method of an oblong anti-sliding pile according to claim 6 , wherein the central axis can rotate around the sliding sleeve to transmit the torque of the upper connecting assembly to the cylinder. 8 . The middle part of the support base plate is provided with an oval long groove, and the sliding sleeve can slide left and right in the oval long groove; the adjustment hole plate can realize the positioning adjustment of the drilling tool by changing the insertion position of the positioning pin The guide cone can be guided up and down in both directions to reduce the scraping damage of the arc plate to the hole wall; the wear-resistant strip is uniformly welded on the outer side of the upper cylinder body in a spiral shape.