CN211080200U

CN211080200U - Dry-method cement pile construction system for soft foundation treatment

Info

Publication number: CN211080200U
Application number: CN201921716517.5U
Authority: CN
Inventors: 王伟; 刘喜伟; 王靖靖; 陈克昊; 邵庆双
Original assignee: China Construction Civil Engineering Co Ltd
Current assignee: China Construction Civil Engineering Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-24
Anticipated expiration: 2029-10-14

Abstract

A dry method cement pile construction system for soft foundation treatment comprises an excavator; the device also comprises a drill rod and a hopper; a through hole is formed in the middle of the bottom of a bucket of the excavator; the drill rod comprises a rod main body, a conical head arranged at the bottom of the rod main body and a connecting plate arranged at the top of the rod main body; the drill rod is inserted into the through hole, and the connecting plate at the top of the drill rod is lapped on the bucket around the through hole and is fixedly connected with the bucket; the hopper is inserted in a pile hole drilled by the drill rod and is used for pouring cement into the pile hole. The utility model provides a traditional construction system mechanical transition when the handling range is little, the degree of depth is at 1~2 m's highway section frequently, the utilization ratio is not high and the technical problem that the efficiency of construction is low.

Description

Dry-method cement pile construction system for soft foundation treatment

Technical Field

The utility model belongs to soft soil foundation treatment field during the road bed construction, especially a dry method cement pile construction system for soft base is handled.

Background

In the roadbed construction process, in order to reduce longitudinal cracks generated by uneven settlement after roadbed construction, a soft soil roadbed or a road section with the foundation bearing capacity not meeting the requirement needs to be treated; at the present stage, the soft foundation treatment is mainly carried out by filling and replacement, and the treatment range of individual road sections is small, the treatment depth is 1-2, so that the mechanical transition is frequent, the utilization rate is low, and the construction efficiency is low. Therefore, a construction method is needed to ensure the construction quality and the construction efficiency in the soft soil foundation treatment process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dry method cement stake construction system for soft base is handled solves traditional construction system and mechanical transition frequently, the utilization ratio is not high and the technical problem that the efficiency of construction is low when the highway section of 1~2m is little, the degree of depth to the treatment range.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A dry method cement pile construction system for soft foundation treatment comprises an excavator; the device also comprises a drill rod and a hopper; a through hole is formed in the middle of the bottom of a bucket of the excavator; the drill rod comprises a rod main body, a conical head arranged at the bottom of the rod main body and a connecting plate arranged at the top of the rod main body; the drill rod is inserted into the through hole, and the connecting plate at the top of the drill rod is lapped on the bucket around the through hole and is fixedly connected with the bucket; the hopper is inserted in a pile hole drilled by the drill rod and is used for pouring cement into the pile hole.

Preferably, the length of the rod main body is 1200 mm-1800 mm, the diameter of the rod main body is 5 mm-10 mm larger than the diameter of the pile hole to be drilled, and the height of the conical head is 150 mm-250 mm.

Preferably, the connecting plate is connected with the bucket in a welding mode.

Preferably, the bottom of the bucket of the excavator is also provided with a first connecting hole; the first connecting holes are arranged in a group and are arranged at intervals along the periphery of the through hole; a second connecting hole is formed in the position, corresponding to the first connecting hole, on the connecting plate at the top of the drill rod; the drill rod and the bucket are fixed through bolts penetrating through the first connecting hole and the second connecting hole.

Preferably, the hopper comprises an upper material-bearing section and a lower insertion section; the material bearing section is in a circular truncated cone shape and is used for bearing cement, and the horizontal section of the material bearing section is gradually reduced from top to bottom; the inserting section is cylindrical and is fixedly connected to the lower end of the material bearing section and used for being inserted into the pile hole, and the material bearing section and the inserting section are integrally formed.

Compared with the prior art, the utility model has the following characteristics and beneficial effect.

1. The utility model discloses a cement pile construction system saves labour, high-efficient, easy and simple to handle, can dismantle, extensive applicability, cyclic utilization when carrying out soft base and handling.

2. Utilize the utility model discloses a dry method cement pile construction system carries out construction simple process, can effectively improve the efficiency of construction when guaranteeing the engineering quality, saves the project cost.

3. The utility model discloses an adopt the excavator to install the drilling rod additional on the scraper bowl and carry out the construction of dry method cement stake, simplify the construction method into: construction preparation → pile position lofting → mechanical in-place → punching → cement pouring and tamping → construction of the next pile, which improves the construction efficiency of the soft foundation road section with small range and depth of 1-2 m.

4. According to the traditional replacement and filling process, after soft soil is excavated and aired, a certain proportion of lime soil is mixed for backfilling or plain soil meeting requirements is directly replaced and filled, a slope needs to be placed when a road section with a small range is excavated, the treatment range is invisibly expanded, the construction cost is increased, excavation and airing are not needed by adopting the method, construction is completed by a construction machine at one time, the cost is saved, and the construction efficiency is improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the excavator provided with the drill rod.

Fig. 2 is a schematic structural diagram of the excavator in the present invention.

Fig. 3 is a schematic structural view of the drill rod of the present invention.

Fig. 4 is a schematic structural diagram of the hopper of the present invention.

Fig. 5 is a schematic structural view of the utility model of a middle hopper installed on a pile hole.

Fig. 6 is a state diagram of the present invention during construction.

Reference numerals: 1-excavator, 1.1-bucket, 2-drilling rod, 2.1-rod body, 2.2-conical head, 2.3-connecting plate, 3-hopper, 3.1-material-bearing section, 3.2-insertion section, 4-through hole, 5-first connecting hole, 6-second connecting hole and 7-pile hole.

Detailed Description

As shown in fig. 1 to 6, the dry method cement pile construction system for soft foundation treatment comprises an excavator 1; the device also comprises a drill rod 2 and a hopper 3; a through hole 4 is formed in the middle of the bottom of a bucket 1.1 of the excavator 1; the drill rod 2 comprises a rod main body 2.1, a conical head 2.2 arranged at the bottom of the rod main body 2.1 and a connecting plate 2.3 arranged at the top of the rod main body 2.1; the drill rod 2 is inserted into the through hole 4, and a connecting plate 2.3 at the top of the drill rod 2 is lapped on the bucket 1.1 around the through hole 4 and is fixedly connected with the bucket 1.1; the hopper 3 is inserted into a pile hole 7 drilled by the drill rod 2 and is used for pouring cement into the pile hole 7.

In this embodiment, the length of the rod main body 2.1 is 1200mm to 1800mm, the diameter of the rod main body 2.1 is 5mm to 10mm larger than the pile hole 7 to be drilled, the height of the conical head 2.2 is 150mm to 250mm, and the conical head 2.2 is integrated with the rod main body 2.1 by welding.

In this embodiment, the connecting plate 2.3 and the bucket 1.1 are connected by welding.

In this embodiment, the bottom of the bucket 1.1 of the excavator 1 is further provided with a first connection hole 5; the first connecting holes 5 are arranged in a group and are arranged at intervals along the periphery of the through hole 4; a second connecting hole 6 is formed in the position, corresponding to the first connecting hole 5, of the connecting plate 2.3 at the top of the drill rod 2; the drill rod 2 and the bucket 1.1 are fixed through bolts penetrating through the first connecting hole 5 and the second connecting hole 6, and assembly and disassembly are facilitated.

In this embodiment, the hopper 3 comprises an upper material receiving section 3.1 and a lower insertion section 3.2; the material bearing section 3.1 is in a circular truncated cone shape and is used for bearing cement, and the horizontal section of the material bearing section 3.1 is gradually reduced from top to bottom; the inserting section 3.2 is cylindrical, is fixedly connected to the lower end of the material bearing section 3.1 and is used for being inserted into the pile hole 7, and the material bearing section 3.1 and the inserting section 3.2 are integrally formed.

In this embodiment, the hopper 3 is made of a 0.5 mm-thick tinplate through edge trimming by a finishing tool, and the size of the hopper 3 is actually determined on site.

In the embodiment, the depth of the drilled pile hole 7 and the cement consumption are strictly controlled in the construction process, so that the engineering quality is ensured.

In the embodiment, in the construction process, firstly, the drill rod 2 is fixed on the bucket 1.1 of the excavator 1 through welding or bolts, then a measurer performs pile position lofting, the pile hole 7 is punched after a machine is in place, finally, the hopper 3 is manually placed on the punched pile hole 7, cement is poured, the construction machine is adopted for layering and tamping, and the next pile construction is performed after the cement is poured to the designed elevation.

The above embodiments are not exhaustive of the specific embodiments, and other embodiments are possible, and the above embodiments are intended to illustrate, but not limit the scope of the present invention, and all applications coming from the simple changes of the present invention fall within the scope of the present invention.

Claims

1. A dry method cement pile construction system for soft foundation treatment comprises an excavator (1); the method is characterized in that: the device also comprises a drill rod (2) and a hopper (3); a through hole (4) is formed in the middle of the bottom of a bucket (1.1) of the excavator (1); the drill rod (2) comprises a rod main body (2.1), a conical head (2.2) arranged at the bottom of the rod main body (2.1) and a connecting plate (2.3) arranged at the top of the rod main body (2.1); the drill rod (2) is inserted into the through hole (4), and a connecting plate (2.3) at the top of the drill rod (2) is lapped on the bucket (1.1) around the through hole (4) and is fixedly connected with the bucket (1.1); the hopper (3) is inserted into a pile hole (7) drilled by the drill rod (2) and is used for pouring cement into the pile hole (7).

2. The dry cement pile construction system for soft foundation treatment as claimed in claim 1, wherein: the length of the rod main body (2.1) is 1200-1800 mm, the diameter of the rod main body (2.1) is 5-10 mm larger than a pile hole (7) to be drilled, and the height of the conical head (2.2) is 150-250 mm.

3. The dry cement pile construction system for soft foundation treatment as claimed in claim 1, wherein: the connecting plate (2.3) is connected with the bucket (1.1) in a welding mode.

4. The dry cement pile construction system for soft foundation treatment as claimed in claim 1, wherein: the bottom of a bucket (1.1) of the excavator (1) is also provided with a first connecting hole (5); the first connecting holes (5) are arranged in a group and are arranged at intervals along the periphery of the through hole (4); a second connecting hole (6) is formed in the position, corresponding to the first connecting hole (5), on the connecting plate (2.3) at the top of the drill rod (2); the drill rod (2) and the bucket (1.1) are fixed through bolts penetrating through the first connecting hole (5) and the second connecting hole (6).

5. The dry cement pile construction system for soft foundation treatment as claimed in claim 1, wherein: the hopper (3) comprises an upper material bearing section (3.1) and a lower insertion section (3.2); the material bearing section (3.1) is in a circular truncated cone shape and is used for bearing cement, and the horizontal section of the material bearing section (3.1) is gradually reduced from top to bottom; the inserting section (3.2) is cylindrical, is fixedly connected to the lower end of the material bearing section (3.1) and is used for being inserted into the pile hole (7), and the material bearing section (3.1) and the inserting section (3.2) are integrally formed.