CN111155530A

CN111155530A - A shovel mud ware for underground continuous wall connects processing

Info

Publication number: CN111155530A
Application number: CN201911392503.7A
Authority: CN
Inventors: 孙海明; 何新明; 吴荣惠; 田新伟
Original assignee: Shanghai Foundation Engineering Group Co Ltd
Current assignee: Shanghai Foundation Engineering Group Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-15

Abstract

The invention relates to a mud shovel for processing underground continuous wall joints, which is provided with a grab bucket mud discharging box, wherein the upper part of the grab bucket mud discharging box is provided with a mud shoveling grab, the lower part of the grab bucket mud discharging box is provided with a connecting end, the connecting end is connected with grab teeth of a grab bucket of a trenching machine through the connecting end and is connected with the grab bucket of the trenching machine at an angle of 90 degrees, and the mud shoveling device can shovel mud clamped at the joint of a ground wall. The mud shoveling device is connected with the grab bucket of the trenching machine through the connecting end in a bolt fastening mode, and is convenient to mount and dismount. The soil accumulation of the mud shoveling device in the mud shoveling process is discharged through the grab bucket mud discharging box, so that the effect is prevented from being influenced by the soil accumulation in the mud shoveling device. The mud shoveling device is additionally arranged at the grab bucket of the existing trenching machine to carry out mud shoveling treatment on new and old joints of the underground diaphragm wall, so that leakage of the joints of the diaphragm wall can be reduced, and the enclosure quality of the diaphragm wall is improved. The invention is suitable for the mud clamping cleaning of diaphragm walls with various thicknesses in the form of cross steel plates and H-shaped steel joints by adjusting the thickness of the diaphragm walls, and the cleaning effect is obvious in practical operation.

Description

A shovel mud ware for underground continuous wall connects processing

Technical Field

The invention relates to a mud digging grab bucket control system of an underground continuous wall trenching machine, in particular to a mud shovel for mud clamping of old and new joints which are difficult to clean.

Background

With the development demand of underground space, more and more underground continuous walls are used, which are the most practical process at present, occupy less area and can directly form the solid shell of the underground space. However, the foundation pit enclosure engineering must face the problem of water leakage, especially the problem of leakage at the joint of the adjacent walls is the main problem, no matter the underground continuous wall adopts a flexible (locking pipe and H-shaped steel) joint or a rigid (cross steel plate and straight line) joint, the weak part of concrete poured in different times is finally influenced by the viscosity of cement slurry in the concrete poured in advance, certain soft soil is bonded at the joint and the joint, if the treatment is improper, the phenomenon of wall joint mud inclusion is formed in the foundation pit excavation in the future, the weak part becomes the joint, along with the excavation process, a leakage point is formed under the erosion and brushing of underground water, and the serious leakage point can also influence the enclosure safety of the foundation pit; the placement of the ground wall reinforcement cage is influenced by the gravity, so that the inclined cage is caused, and considerable influence is caused on subsequent construction. Therefore, the treatment of the leakage-proof plugging agent is the key point of the leakage-proof plugging of the ground wall.

Due to different actual conditions of engineering joints, a grab bucket system of a conventional trenching machine cannot be completely suitable for effective treatment of various joint mud, and a wall brushing device cannot be cleaned up due to the reasons of smaller self weight, softer steel brush hair and the like. Therefore, a steel grab shovel which utilizes the self weight of a trenching machine bucket needs to be designed so as to clean the hard sundry soil at the joint of the new and old ground walls.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing the mud shovel for processing the joint of the underground diaphragm wall by means of the self weight of the grab bucket of the trenching machine, and the mud shovel has the advantages of simplicity and convenience in manufacture, adjustable specification, convenience in installation, firm connection, easiness in replacement and the like.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a shovel mud ware for underground continuous wall connects processing has a grab bucket and goes out the mud case, grab bucket goes out mud case upper portion and is equipped with shovel mud and grabs, is equipped with the link below to be connected through link and grooving machine grab tooth, and become 90 degrees with grooving machine grab bucket and be connected, can press from both sides mud to wall seam crossing and play the effect of shoveling.

Furthermore, the mud shoveling device is connected with the grab bucket of the trenching machine in a bolt fastening mode through the connecting end, so that the mud shoveling device is convenient to mount and dismount.

Furthermore, the soil accumulation of the mud shoveling device in the mud shoveling process is discharged through the grab bucket mud discharging box, so that the effect is prevented from being influenced by the soil accumulation in the mud shoveling device.

Furthermore, the shovel teeth are connected with the grab bucket mud outlet box through bolts, and replacement is facilitated.

Further, the grab bucket goes out the mud box middle and is equipped with the gap to be connected with cross steel sheet stagnant water steel sheet through the gap, can ensure to stop cross steel sheet stagnant water steel sheet and do not influence transferring of shovel mud ware.

Further, the length of the mud shovel is 700mm, the width of the mud shovel is 1200mm, the height of the mud shovel is 300mm, and the mud shovel is formed by welding and riveting a steel plate with the thickness of 30 mm.

The invention has the beneficial effects that:

⑴ the invention adopts steel plates to weld according to the actual field, has simple material selection, adjustable specification, low cost and repeated use, adopts common steel plates as the materials, and is common in the market of material types.

⑵ the wall seam mud scraper of the grooving machine is connected with the original grab bucket of the grooving machine through the connecting end by bolts, and has convenient disassembly, firm connection and convenient maintenance.

⑶ the slotter wall seam mud scraper provided by the invention can conveniently remove mud clamping formed by wall seams and even remove some harder concrete lumps by using the assembled combination in the wall trenching construction, greatly reduces the phenomena of seam mud clamping, ensures the smooth placement of a ground wall reinforcement cage, and can obviously reduce the leakage of the wall seams of an enclosure structure.

Drawings

FIG. 1 is a schematic view of the construction of a shovel for underground diaphragm wall joint treatment according to the present invention;

FIG. 2 is a front end view of FIG. 1;

fig. 3 is a side plan view of fig. 1.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawing.

As shown in fig. 1 to 3, the mud shoveling device for processing the underground continuous wall joint based on the grab bucket of the trenching machine comprises a connecting end 1, a grab bucket mud discharging box 2 and a mud shoveling grab 3. The upper part of the grab bucket mud discharging box 2 is provided with a mud shoveling grab 3, and the lower part is provided with a connecting end 1. The connecting end 1 is provided with a connecting hole 5.

The mud shovel is connected with a grab bucket of a trenching machine through the connecting end 1 by bolts, and is firm, reliable and convenient to install. Through the sinking of groover grab bucket hugging closely seam department, press from both sides mud by shovel mud grab 3 and carry out shovel mud to seam department, the earth that shovels falls into the tank bottom through grab bucket play mud case 2 output, prevents that shovel mud ware amass mud, influences the efficiency. Gap 4 sets up for adapting to cross steel sheet stagnant water steel sheet joint in the middle of the grab bucket goes out mud case 2r, ensures that the stagnant water steel sheet does not influence transferring of shovel mud ware.

The wall seam mud scraper of the trenching machine is mainly a welding system, wherein the vulnerable part mud scraping teeth 3 are connected by bolts, so that the replacement is convenient. The connecting end 1 and the grab bucket of the trenching machine are also connected by bolts, so that the grab bucket is convenient to mount and dismount.

The wall seam mud scraper of the grooving machine is 1.2 x 0.7 x 0.3m in size and about 364.3Kg in self weight, steel plates are used as main framework members, the main structure is made of steel plates with the thickness of 30mm, and the main structure is made and formed by adopting a welding machine process. The connecting end is made of a steel plate with the thickness of 20mm, and the grabbing teeth are specially made of a steel plate with the thickness of 10 mm.

The application method of the embodiment of the invention is as follows:

1. after the grooving machine completes grooving by grabbing at the joint, the wall joint mud shoveling device of the grooving machine is installed at the grab bucket of the grooving machine through hoisting equipment such as a digging machine and the like, and bolts are screwed down.

2. After the installation, the grab bucket of the trenching machine is attached to the joint and sinks into the groove section from top to bottom, and the clamped mud is shoveled by the self weight of the grab bucket of the trenching machine. When the resistance is met, the claw can be sunk repeatedly for many times until the claw is shoveled and leveled.

3. The middle gap of the mud shovel is reserved for the water stop steel plate of the cross steel plate joint, and the work of the mud shovel is not influenced.

4. If the shovel claw is seriously abraded, the bolt can be timely disassembled for replacement.

5. After the operation is finished, the lifting equipment can be used for matching, the mud shoveling device is detached, the normal working condition of the grab bucket of the trenching machine is recovered, and the normal construction is not influenced.

The invention provides a wall joint mud scraper of a trenching machine, which can solve the technical problem by means of the self weight of a grab bucket of the trenching machine. The mud shovel has the advantages of simple and convenient manufacture, adjustable specification, convenient installation, firm connection, easy replacement and the like.

The wall seam mud shoveling device of the grooving machine is directly connected with the original grab bucket of the grooving machine through a bolt and is connected with the original grab bucket of the grooving machine at an angle of 90 degrees, and plays a better role in shoveling mud clamped at the seam of the ground wall.

In the actual construction of the ground wall grooving, the combination after the main assembly is utilized, the mud clamping formed by the wall joint can be conveniently removed, even some harder concrete laitances can be removed, the smooth placement of the ground wall reinforcement cage is ensured, the phenomenon of joint mud clamping is greatly reduced, and the condition of wall joint leakage of the enclosure structure can be obviously reduced.

Claims

1. A shovel for underground continuous wall joint treatment, having a grab bucket mud-out box (2), characterized in that: the grab bucket mud outlet box (2) is provided with a mud shoveling grab (3) at the upper part and a connecting end (1) at the lower part, is connected with grab bucket grabbing teeth of the trenching machine through the connecting end (1), is connected with the grab bucket of the trenching machine at 90 degrees, and can clamp mud at the joint of the ground wall to shovel.

2. A scraper for underground diaphragm wall joint treatment according to claim 1, characterized in that: the mud shoveling device is connected with the grab bucket of the trenching machine through the connecting end (1) in a bolt fastening mode (2), and is convenient to mount and dismount.

3. A scraper for underground diaphragm wall joint treatment according to claim 1, characterized in that: the soil accumulation of the mud shoveling device in the mud shoveling process is discharged through the grab bucket mud discharging box (2), so that the effect is prevented from being influenced by the soil accumulation in the mud shoveling device.

4. The underground diaphragm wall seam scraper of claim 1, characterized in that: the shovel mud teeth (3) are connected with the grab bucket mud outlet box (2) through bolts, and are convenient to replace.

5. The underground diaphragm wall seam scraper of claim 1, characterized in that: a gap (4) is arranged in the middle of the grab bucket mud outlet box (2) and is connected with the cross steel plate water stop steel plate through the gap (4), so that the cross steel plate water stop steel plate can be ensured not to influence the downward placement of the mud shoveling device.

6. The underground diaphragm wall seam mud scraper according to any one of claims 1-5, characterized in that: the length of the mud shoveling device is 700mm, the width of the mud shoveling device is 1200mm, the height of the mud shoveling device is 300mm, and the mud shoveling device is formed by welding and riveting a steel plate with the thickness of 30 mm.