WO2020098041A1

WO2020098041A1 - Cement steel pipe pile

Info

Publication number: WO2020098041A1
Application number: PCT/CN2018/121140
Authority: WO
Inventors: 梁兆镛
Original assignee: 佛山市高明顺高木业有限公司
Priority date: 2018-11-14
Filing date: 2018-12-14
Publication date: 2020-05-22
Also published as: CN109457695A

Abstract

Disclosed is a cement steel pipe pile, comprising a pile body (1), wherein the pile body (1) is a hollow pipe body, a pile cap (2) is arranged above the pile body (2), the pile cap (2) has a feed inlet (21) reserved thereon, a pile shoe (3) is provided below the pile body (1), the feed inlet (21) is in communication with the pile body (1), the pile body (1) is in communication with the pile shoe (3), and a flow guide plate (4) is provided on the pile shoe (3). The cement steel pipe pile has a stable structure, the pile shoe (3) has a cross-shaped design, the flow guide plate can prevent hard soil from entering the pile body (1) in the process of putting the cement steel pipe pile into soil, and after cement mortar is poured into the pile body (1) and sets, a lower end of the pile body (1) can be locked in a set cement block from the outside, thereby generating a larger cross section in order to enhance the bearing capacity thereof.

Description

Cement steel pipe pile

Technical field

The invention relates to the technical field of building materials, in particular to a concrete steel pipe pile.

Background technique

Wooden houses are very popular in North America, and in the context of the new era and new trends, young people in China are pursuing the enjoyment and experience of beauty, and wooden houses are also gradually popular in China. Most of the wooden houses are built in the places near the mountains and the water, suitable for self-cultivation, leisure, entertainment, and relaxation. Whether on the hillside or plain grass, a variety of wooden cabin styles can be built. The design is flexible and diverse. Strong shock resistance, thermal insulation and sound insulation, warm in winter and cool in summer, healthy and environmentally friendly, can play a natural role in adjusting humidity, wood itself is the original ecological environmental protection material, plus modern technology processing to form a kind of anti-corrosion, moisture-proof, moth-proof, mildew-proof For good effect, people living in wooden log cabins made of logs can enjoy the fragrance of the logs and experience the natural feeling of returning to the original ecology.

Compared with cement buildings, the wooden house is lighter in weight. Therefore, in order to improve the stability of the wooden house, it is not easy to be blown down by the strong wind. Usually, the pile is driven into the ground below the wooden house, and then the wooden house is fixed on the pile. The piles used are all of the structure shown in Figure 1. The pile is composed of a steel tube in the upper section and a screw-shaped section in the lower section. This pile is planted on the ground by screw driving, but this structure exists The shortcoming is that the external tension of the pile depends entirely on the frictional force of the steel pipe wall and the surface of the steel plate in contact with the soil, but the surface of the steel pipe of the pile is smooth, the friction is limited, and it is easy to be pulled up. During the process of entering, the soil will enter the inside of the steel cylinder or eventually emerge from the top of the steel cylinder, causing the inside of the steel cylinder to form a blockage, or the emerging soil will affect the external drive into the equipment.

Summary of the invention

The present invention overcomes the shortcomings of the prior art, and provides a cement steel pipe pile with a stable structure and a cross-shaped design of the pile mouth, which has strong rigidity, and the deflector can prevent the hard soil from entering the pile during the process of planting into the ground体内。 Body inside.

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A cement steel pipe pile includes a pile body, the pile body is a hollow design pipe body, a pile cap is provided above the pile body, a feed inlet is reserved on the pile cap, and the pile body A pile spout is also provided below, the feed inlet is in communication with the pile body, the pile body is in communication with the pile spout, and a spoiler is provided on the pile spout.

Preferably, the spout includes a first plate and a second plate, the first plate and the second plate are arranged in a cross shape, and the first plate and the second plate have the same thickness, A first slot is provided on the first plate, a second slot is provided on the second plate, and the first slot of the first plate is inserted into the second slot of the second plate The groove can fix the first plate and the second plate to each other.

Preferably, the angle formed by the extension lines of the two hypotenuses on the outer side of the lower end of the first plate and the sharpest angle of the lowermost end of the second plate are acute angles, so as to facilitate insertion into the ground.

Preferably, the deflector is provided at an angle formed by the intersection of the first and second plates, and the opening formed by the deflector and the first and second plates surrounds on.

Preferably, both the first and second plates are provided with a first assembling groove and a second assembling groove, and the first assembling groove and the second assembling groove on the first or second plate The distance between them is consistent with the pipe diameter of the pile body, and the lower end of the pile body is connected and installed on the first installation groove and the second installation groove.

Preferably, the first plate and the second plate are also provided with clamping positions on both sides.

Preferably, the pile cap is further provided with a mounting groove.

Preferably, the thickness of the deflector is 3 to 5 mm.

Preferably, the outer surfaces of the pile body, pile cap, pile nozzle and deflector are all provided with anti-rust paint.

Compared with the prior art, the beneficial effects of the present invention are:

The pile mouth of the invention adopts a cross-shaped design, which has strong rigidity, and is not easy to deform during the process of planting into the ground, and a deflector is provided at the pile mouth to block large pieces of soil and hard objects from entering the pile body; When the present invention is planted into the ground, the external high-pressure cement pump is used to inject the prepared cement mortar from the inlet of the pile cap. When the cement mortar encounters the deflector block, it will change from a vertical fall motion to a lateral expansion motion. , So that the cement mortar is more concentrated around the pile mouth, forming an effective cement block structure, maximizing the forming volume of the cement block under the pile body, on the one hand, because the interior of the pile body is also filled with cement mortar, it increases In addition to the supporting force and gravity of the pile, on the other hand, the cement block formed in turn firmly locks the pile mouth, so that the pile is solidified in the depth of the ground surface, and it is not easy to shake or be pulled away. The wooden house is locked on the pile through the installation groove on the pile cap, and the fall resistance is strong.

BRIEF DESCRIPTION

The drawings are used to provide a further understanding of the present invention, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation on the present invention. In the drawings:

Figure 1 is a schematic diagram of the structure of the pile currently used in the wooden house;

2 is a schematic structural view of the new type of cement steel pipe pile of the present invention;

3 is a plan view of the pile nozzle and the pile body after separation;

4 is a schematic structural view of the first plate;

5 is a schematic structural view of the second plate;

Fig. 6 is a plan view of the pile cap.

In the picture: 1-pile body, 2-pile cap, 21-inlet, 22-mounting slot, 3-pile nozzle, 31-first plate, 311-first slot, 32-second plate, 321-Second slot, 4-Guard plate, 5-First assembly slot, 6-Second assembly slot, 7-position.

detailed description

The following describes preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention. The bearing capacity is also insufficient;

As shown in Figure 1, it is a schematic diagram of the structure of a pile currently used in a wooden house. The pile is composed of a steel tube in the upper section and a screw-shaped structure in the lower section. This pile is planted on the ground by screw driving, but The shortcoming of this structure is that the external tension of the pile depends entirely on the frictional force of the steel tube wall and the surface of the steel plate in contact with the soil, but the surface of the steel tube of the pile is smooth, the frictional force is limited, and it is easy to be pulled up and carried. Not strong enough.

As shown in FIGS. 2 to 6, a cement steel pipe pile according to the present invention includes a pile body 1, which is a hollow design pipe body, which is made of stainless steel and welded above the pile body 1 There is a pile cap 2, a feed inlet 21 is reserved on the pile cap 2, a pile nozzle 3 is also provided below the pile body 1, the feed port 231 communicates with the pile body 1, and the pile body 1 communicates with the pile nozzle 2, so from The feeding port 231 is filled with cement mortar, and it will fall directly along the pile body 1 to the pile nozzle 2. The deflector 4 is provided on the pile nozzle 3, and the deflector 4 is welded and fixed on the pile nozzle 3; the pile nozzle 3 includes The first plate 31 and the second plate 32, the first plate 31 and the second plate 32 are arranged in a cross shape, and this cross-shaped cross arrangement achieves the function of strengthening the overall structure of the spout 3 and improving the Impact resistance, the first plate 31 and the second plate 32 have the same thickness, and a first slot 311 is provided on the first plate 31, a second slot 321 is provided on the second plate 32, The first slot 311 of the first plate 31 is inserted into the second slot 321 of the second plate 32, and the first plate 31 and the second plate 32 can be fixed to each other. In addition, during production, It is necessary to weld the intersection of the first plate 31 and the second plate 32 with a welding machine, so that the first plate 31 and the second plate 32 are fixed and integrated, and it is not easy to separate; in addition, the first plate The angle formed by the extension lines of the two oblique sides outside the lower end of the sheet 31 and the lowermost sharp angle of the second plate 32 are both acute angles. In this embodiment, the angle between the included angle and the sharp angle is 45 °, which is set to an acute angle. Conducive to planting in the mud during construction. The deflector 4 is welded at four angles formed by the intersection of the first plate 31 and the second plate 32, and the opening formed by the deflector 4 and the first plate 31 and the second plate 32 is upward, The purpose of the deflector 4 is that when the present invention is planted in the mud, it has a certain blocking effect on large pieces of soil and hard objects, so that they cannot enter the interior of the pile 1; when pouring into the pile of the present invention When entering the cement mortar, there is a certain bearing effect, the thickness of the deflector 4 can be 3 to 5mm, in this embodiment, the thickness is 4mm; as shown in Figure 3, in this embodiment, the deflector 4 The number is 4 pieces, and the diameter formed by the 4 deflectors 4 is slightly larger than the diameter and width of the pile body 1 to achieve the blocking effect.

The first mounting groove 5 and the second mounting groove 6 are provided on both the first plate 31 and the second plate 32, and the first mounting groove 5 and the second mounting groove on the first plate 31 or the second plate 32 The distance between 6 and the diameter of the pile body 1 is the same. Therefore, in production, the lower end of the pile body 1 is directly inserted into the first installation groove 5 and the second installation groove 6, and then the pile body 1 The joint between the lower end of the first mounting groove 5 and the second mounting groove 6 is welded with a welding machine, and the pile nozzle 3 and the pile body 1 can be welded together.

The first plate 31 and the second plate 32 are also provided with a clamping position 7 on both sides. The clamping position 7 serves as a clamping position, which helps to enhance the pull-out resistance of the present invention.

The outer surfaces of the pile body 1, pile cap 2, pile mouth 3 and deflector 4 are all provided with anti-rust paint, which can be selected from polyurethane anti-rust paint. And the deflector 4 has an anti-rust effect to avoid corrosion and oxidation and prolong the service life.

The pile cap 2 is also provided with an installation slot 22 for installing bolts with the bottom of the wooden house to fix the wooden house.

The working principle of the present invention is that the pile head 4 faces downwards, and the invention is driven into the mud ground. Due to the arrangement of the deflector 4, it has a blocking effect on large pieces of soil and hard objects, so the pile body 1 is basically maintained In the hollow state, the external high-pressure cement pump is used to inject the prepared cement mortar from the inlet 21 of the pile cap 2. When the cement mortar encounters the deflector 4, it will change from a vertical fall motion to a lateral expansion motion, so that Cement mortar gathers more around the pile mouth 4 to form an effective cement block structure, which maximizes the formation volume of the cement block under the pile body 1. On the one hand, the pile body is also filled with cement mortar, so it increases The pile bearing force and gravity, on the other hand, the cement block formed in turn firmly locks the pile mouth 4, so that the pile is solidified in the depth of the ground surface, and it is not easy to shake or be pulled away. The wooden house is locked on the pile through the installation groove 22 on the pile cap 2 and has strong anti-falling ability.

Inspired by the concept of the spout 4 of the present invention, the structure in which the spout 4 is welded and formed by a multi-discriminating triangular piece also falls within the protection scope of the present invention.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, it can still The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced, but any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention should be included in the present invention Within the scope of protection.

Claims

A cement steel pipe pile is characterized by including a pile body, the pile body is a hollow design pipe body, a pile cap is provided above the pile body, and a feed inlet is reserved on the pile cap, A pile spout is also provided below the pile body, the feed inlet communicates with the pile body, the pile body communicates with the pile spout, and a deflector plate is provided on the pile spout.
The cement steel pipe pile according to claim 1, wherein the pile nozzle includes a first plate and a second plate, the first plate and the second plate are arranged in a cross shape, The first plate and the second plate have the same thickness. The first plate is provided with a first slot, and the second plate is provided with a second slot. A slot is inserted into the second slot of the second plate to fix the first plate and the second plate to each other.
The cement steel pipe pile according to claim 2, wherein the angle formed by the extension lines of the two oblique sides outside the lower end of the first plate and the lowermost sharp angle of the second plate are acute angles, Conducive to inserting land.
The cement steel pipe pile according to claim 2, wherein the deflector is disposed at an angle formed by the intersection of the first and second plates, and the deflector and the The opening formed by the first plate and the second plate is upward.
A cement steel pipe pile according to claims 2 to 4, characterized in that both the first plate and the second plate are provided with a first assembling groove and a second assembling groove, and the first plate Or the distance between the first assembly groove on the second plate and the second assembly groove is the same as the pipe diameter of the pile body, and the lower end of the pile body is connected to the first installation groove and the first Two on the installation slot.
The cement steel pipe pile according to claim 5, wherein the first plate and the second plate are further provided with clamping positions on both sides.
The cement steel pipe pile according to claim 1, wherein the pile cap is further provided with an installation groove.
The cement steel pipe pile according to claim 1, wherein the thickness of the deflector is 3 to 5 mm.
A cement steel pipe pile according to claim 1, characterized in that the outer surfaces of the pile body, pile cap, pile nozzle and deflector are all provided with anti-rust paint.