CN110777794A

CN110777794A - Hopper for underground continuous wall joint pipe bin

Info

Publication number: CN110777794A
Application number: CN201911224273.3A
Authority: CN
Inventors: 赵明时; 郭�东; 汤丽军; 董继增; 郑建民; 宫英华; 刘爱国; 张燕鹏
Original assignee: TIANJIN SHENJI ENGINEERING Co Ltd; CCCC First Harbour Consultants Co Ltd
Current assignee: TIANJIN SHENJI ENGINEERING Co Ltd; CCCC First Harbour Consultants Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-02-11

Abstract

The invention provides a hopper of a continuous underground wall joint pipe bin, which comprises a bin, a hopper, a support, a clamping frame, a lifting lug, a discharging barrel and a plug, wherein the bin is cylindrical, and the lower end of the bin is positioned on the support and welded with the hopper; an outlet at the bottom of the funnel is welded with the upper end part of the cylindrical discharging barrel. The support is triangular, and the lower end of each corner is provided with an upright column with the same length to form a clamping frame. The invention has the beneficial effects that: the storage bin and the hopper can store a large amount of graded broken stones at one time, so that the use frequency of a crane is reduced; the clamping frame plays a role in supporting and preventing the device from moving during feeding, so that the stability and safety of the clamping frame are ensured; the problems that the bottom of the joint pipe flows around and the joint pipe is difficult to pull out when the concrete is poured and the joint pipe is pulled out in the traditional underground continuous wall are solved, and the construction quality is ensured; simple structure, convenient disassembly, construction site manufacture, low cost, repeated utilization, large operability and strong popularization.

Description

Hopper for underground continuous wall joint pipe bin

Technical Field

The invention belongs to the technical field of joint construction of underground continuous walls, and particularly relates to a hopper of an underground continuous wall joint pipe bin, which can ensure that an underground continuous wall joint pipe is prevented from flowing around.

Background

With the great application of the underground continuous wall to foundation engineering main bodies and building envelopes, how to control and prevent the bottom of the joint pipe of the underground continuous wall from flowing around becomes one of the key points of the construction quality control of the underground continuous wall.

A joint pipe is generally adopted for construction of a joint of a traditional underground continuous wall, the following problems generally occur that ① joint pipes 8 cannot be placed to the bottom, an 'overexcavation' condition often occurs in the construction process or other conditions such as geological conditions cause that the joint pipes 8 cannot be placed to the bottom of a groove section, the depth h is reserved between the bottom of the joint pipes 8 and the bottom of the groove section, when concrete is poured by using a concrete pouring device 12, concrete flows around through the bottom of the joint pipes 8 and enters the inside of the joint pipes 8 and the soil body 9 of an adjacent groove section, ② pipe drawing time is determined by experiments, but in the actual construction process, due to the influence of external factors such as the quality of the concrete, weather and geology and the like, in order to reduce the risk that the joint pipes 8 cannot be drawn out, technicians tend to be conservative when the joint pipes 8 are drawn out, the pipe drawing time is 'no late withdrawal', the concrete may not reach the initial setting condition, when the joint pipes 8 are drawn out, the concrete flows around the bottom of the joint pipes 8 and enters the interior of the groove section and the groove section, the quality of the concrete flows into the groove section, and the concrete flow into the groove section, and the concrete pouring process are difficult to cause the quality of the adjacent concrete to cause serious damage due to the inner wall, the concrete flows, and the quality of the concrete flows of the concrete flow of the joint pipes 8, and the concrete flow of the concrete, and the concrete flow of the concrete are difficult to cause the adjacent groove section.

Disclosure of Invention

In order to solve the problems in the construction of the underground continuous wall, the invention provides the hopper of the underground continuous wall joint pipe storage bin, which can ensure that the underground continuous wall joint pipe is prevented from flowing around.

In order to achieve the purpose, the invention adopts the technical scheme that: a hopper of an underground continuous wall joint pipe bin comprises a bin, a hopper, a support, a clamping frame, a lifting lug, a discharge barrel and a plug, wherein the bin is cylindrical, the lower end of the bin is positioned on the support, and the hopper is welded on the lower end of the bin; and an outlet at the bottom of the funnel is welded with the upper end part of the cylindrical discharging barrel.

The support is triangular, and the lower end of each corner is provided with an upright column with the same length to form a clamping frame.

The discharging barrel is positioned in the clamping frame at the lower part of the bracket.

The lifting lugs are processed into a semicircular shape by round steel and then are welded firmly on two symmetrical sides of the storage bin.

The semi-circle diameter of the lifting lug is 10-15 cm.

The diameter of the top end of the funnel is equal to the diameter of the bin, and the diameter of the bottom end of the funnel is equal to the diameter of the discharge barrel.

The plug is a circular plate made of a steel plate through cutting, the diameter of the circular plate is 4-10cm larger than that of the discharge barrel, and an opening pull wire is arranged on the outer surface of the plug.

The support and the clamping frame are made of square tubes, the support is welded on the outer wall of the funnel, and the clamping frame is welded on the outer side of the support.

The storage bin, the hopper and the discharge barrel are all rolled by steel plates with the same thickness.

The plug is positioned at an upper outlet of the discharging barrel.

The invention has the advantages of solving the problems of the traditional underground continuous wall that the bottom of the joint pipe flows around and the joint pipe is difficult to pull out when the concrete is poured and the joint pipe is pulled out, reducing the risk that the joint pipe is embedded in the wall body and ensuring the joint of the underground continuous wall and the construction quality of the wall body. In addition, the device is detachable structure, and the play feed cylinder leaves the detachable shutoff, and the feed bin top is provided with the lug of round steel preparation, can use the crane to separate the device and adapter tube at any time. The device has the advantages of simple structure, convenient disassembly, construction site manufacture, low cost, reusability, large operability and strong popularization.

Drawings

FIG. 1 is a three-dimensional schematic view of a bin funnel of the present invention;

FIG. 2 is a schematic top view of a bin hopper of the present invention;

FIG. 3 is a schematic view of the installation of the bin hopper and adapter tube of the present invention;

FIG. 4-1 is a schematic illustration of concrete streaming without a conventional adapter tube being lowered to the bottom;

FIG. 4-2 is a schematic view of the construction of graded crushed stone under the hopper of the storage bin of the present invention;

fig. 4-3 are schematic views of the construction of the hopper funnel of the present invention when the hopper funnel is pulled up from the adapter tube.

In the figure:

1. stock bin 2, hopper 3 and support

4. Clamping frame 5, lifting lug 6 and discharging barrel

7. Plugging 8, joint pipe 9 and soil body

10. Constructed groove section 11, graded broken stone 12 and concrete pouring equipment

13. Streaming h, rich depth F ₁Pulling force

Detailed Description

The funnel structure and the use of the underground continuous wall joint pipe bin of the invention are further explained in the following by combining the attached drawings.

As shown in fig. 1 to 3, the present invention provides an underground continuous wall joint pipe bin funnel, comprising: seven parts of feed bin 1, funnel 2, support 3, card frame 4, lug 5, play feed cylinder 6 and shutoff 7. The bin 1 and the discharge cylinder 6 are rolled into a cylindrical shape by a steel plate and then are respectively welded firmly, and the diameter of the bin 1 is equal to the outer diameter of the joint pipe; the funnel 2 is rolled into a funnel shape by a steel plate and then is welded firmly, the diameter of the top end of the funnel 2 is equal to that of the bin 1, and the diameter of the bottom end of the funnel 2 is equal to that of the discharging barrel 6; then the feed bin 1, the funnel 2 and the discharging barrel 6 are welded firmly. Support 3 and card frame 4 are made by square tube, and support 3 welds at 2 outer walls of funnel, and card frame 4 welds in the support 3 outside. The lifting lug 5 is processed into a semicircular shape by round steel and then is symmetrically welded with the storage bin 1 firmly, and the diameter of the semicircle is 10-15 cm. The plug 7 is made of a steel plate through cutting, the diameter of the plug is slightly larger than that of the discharging barrel 6, and the diameter difference is 4-10cm, as shown in figures 1 and 2.

The invention is designed by sitting the bin 1, the hopper 2 and the discharging barrel 6 on the joint pipe 8 through the bracket 3, preventing the device from moving through the clamping frame 4, and sending graded broken stones 11 to the bottom of the joint pipe 8 through the bin 1, the hopper 2 and the discharging barrel 6, as shown in figure 3.

Before the concrete pouring equipment 12 is used for pouring concrete, the graded broken stones 11 are conveyed downwards to the bottom of the joint pipe 8 along the joint pipe 8 by using the device, after the concrete is poured, when the joint pipe 8 is pulled upwards, the graded broken stones 11 freely collapse, and the concrete can be effectively prevented from flowing around to enter the inner part of the joint pipe 8 and the soil body 9 of the adjacent groove section, as shown in figures 4-1, 4-2 and 4-3.

The device comprises the following concrete construction steps:

1. and (5) preparing. The flatness of the construction site is controlled to be +/-10 cm, and the hopper is prevented from turning over during the placing and loading processes; before the material loading, the plug 7 is manually placed above the discharging barrel 6 through the stock bin 1 and the funnel 2.

2. And (4) grading broken stones. In order to reduce hoisting times and crane use frequency, the full load is realized as much as possible during feeding; when in feeding, the drop height of the stones is controlled within the range of 0.2-1m away from the top opening of the equipment so as to reduce the impact force on the storage bin 1, the funnel 2, the bracket 3, the clamping frame 4 and the plug 7.

3. And (5) hoisting a storage hopper. The device is hoisted to the top of the joint pipe by a crane through the lifting lugs 5, and the device is stably placed when being hoisted and transported, so that graded broken stones 11 are prevented from falling into the groove.

4. And (5) manually pulling, installing and sealing. After the feed bin funnel is installed stably, the blocking 7 is pulled out manually, and the blocking 7 is prevented from falling into the groove in the pulling-out process.

The device pays attention to the following points in the processing and using processes:

1. stiffness and strength requirements. The material chosen for the manufacture of the device is sufficiently rigid and strong, notably taking into account the magnitude of the elastic modulus E, the shear modulus G and the yield strength as, while ensuring the stability of the device after completion of the welding under full load.

2. And (5) corrosion prevention. The device can be repeatedly recycled, rust removal and rust-proof paint coating are regularly performed in the construction intermittence period, and the service life of the device is prolonged.

3. And (5) quality requirements. All components of the device are integrally welded, and the welding quality must be ensured and periodically checked to prevent single components from falling off.

4. The height is required. The overall design height of the device is 1.5-2m, and the requirements of loading of a loader and manual placement of plugs 7 can be met.

In the device and the using method, the device can be recycled and can be installed in place at one time, the processing time of the joint of the adjacent groove sections is reduced, the risk of damage of the joint pipe is reduced, the construction quality of the joint between the groove sections and the wall body is improved, and the using effect is very obvious. Meanwhile, the device is simple in structure, simple and convenient to operate, convenient and fast, and has a very wide application prospect in underground diaphragm wall foundation engineering main bodies and enclosure structure engineering projects.

Claims

1. The utility model provides an underground continuous wall connects pipe storage hopper funnel which characterized by: the device comprises a storage bin (1), a funnel (2), a support (3), a clamping frame (4), a lifting lug (5), a discharging barrel (6) and a plug (7), wherein the storage bin (1) is cylindrical, the lower end of the storage bin is positioned on the support (3), and the funnel (2) is welded on the storage bin; the outlet at the bottom of the funnel (2) is welded with the upper end part of the cylindrical discharging barrel (6).

2. The underground continuous wall joint pipe bin hopper of claim 1, wherein: the support (3) is triangular, and the lower end of each corner is provided with an upright column with the same length to form a clamping frame (4).

3. The underground continuous wall joint pipe bin hopper of claim 1, wherein: the discharging barrel (6) is positioned in the clamping frame (4) at the lower part of the bracket (3).

4. The underground continuous wall joint pipe bin hopper of claim 1, wherein: the lifting lugs (5) are processed into a semicircular shape by round steel and then are welded firmly on two symmetrical sides of the storage bin (1).

5. The underground continuous wall joint pipe bin hopper of claim 4, wherein: the semi-circle diameter of the lifting lug (5) is 10-15 cm.

6. The underground continuous wall joint pipe bin hopper of claim 1, wherein: the diameter of the top end of the funnel (2) is equal to that of the storage bin (1), and the diameter of the bottom end of the funnel is equal to that of the discharge barrel (6).

7. The underground continuous wall joint pipe bin hopper of claim 1, wherein: the plug (7) is a circular plate made of a steel plate through cutting, the diameter of the circular plate is 4-10cm larger than that of the discharge barrel (6), and an opening pull wire is arranged on the outer surface of the plug (7).

8. The underground continuous wall joint pipe bin hopper of claim 1, wherein: support (3) and card frame (4) are made by square tube, and support (3) welding is in the outer wall of funnel (2), and card frame (4) welding is in the outside of support (3).

9. The underground continuous wall joint pipe bin hopper of any one of claims 1 to 8, wherein: the storage bin (1), the hopper (2) and the discharge barrel (6) are all rolled by steel plates with the same thickness.

10. The underground continuous wall joint pipe bin hopper of any one of claims 1 to 8, wherein: the plug (7) is positioned at an upper outlet of the discharging barrel (6).