阅读说明：本技术 一种既有原位管井分段清障方法及装置 (Existing in-situ pipe well segmented obstacle clearing method and device ) 是由 陈荣 赵文凯 张启铭 于 2019-11-19 设计创作，主要内容包括：本发明属于地下清障领域,本发明公开了一种既有原位管井分段清障方法及装置,其通过采用壳体、水刀刀头、电机传动装置、转动盘、旋转管道、以及连接装置能够跟随所述柔性高压管在原位管井内上下移动,因此,水刀刀头可以移动到原位管井的不同深度位置,打开增压泵,储水罐中的水经增压泵增压后,依次经柔性高压管、连接装置、旋转管道后经水刀刀头喷射而出,对原位管井实施高压水切割,从而能够原位管井切割成一根根可以用机器挖出的局部管段,实现原位管井的清障,其可以避免使用大型振动沉拔桩机和全回转钻机等相应设备,减少了对环境的影响,操作方便、快捷、安全,解决了清除地下障碍物过程产生较大周边环境影响及较大生产费用等难题。(The invention belongs to the field of underground obstacle clearing, and discloses a segmented obstacle clearing method and a segmented obstacle clearing device for an existing in-situ pipe well The method is rapid and safe, and solves the problems of great surrounding environment influence, great production cost and the like in the process of removing underground obstacles.)

1. The existing in-situ pipe well segmented obstacle clearing device is characterized by comprising a portable water cutting device for cutting an in-situ pipe well, wherein the portable water cutting device comprises a water storage tank, a booster pump, a flexible high-pressure pipe, a shell, a water knife head, a motor transmission device, a rotary disc, a rotary pipeline and a connecting device, one end of the flexible high-pressure pipe is connected with the booster pump, the other end of the flexible high-pressure pipe extends into the shell and is connected with the upper end of the rotary pipeline through the connecting device, the lower end of the rotary pipeline is provided with the water knife head, the flexible high-pressure pipe is fixedly connected with the connecting device, the rotary pipeline can rotate relative to the flexible high-pressure pipe, the motor transmission device drives the rotary disc to rotate, the rotary disc is fixedly sleeved on the rotary pipeline, and water in the water storage tank is pressurized by the booster pump, the flexible high-pressure pipe is sequentially sprayed out through the water jet cutter head after passing through the flexible high-pressure pipe, the connecting device and the rotary pipeline, and the shell, the water jet cutter head, the motor transmission device, the rotating disc, the rotary pipeline and the connecting device can follow the flexible high-pressure pipe to move up and down in the in-situ pipe well.

2. The existing in-situ pipe well segmented obstacle clearing device as claimed in claim 1, wherein the portable water cutting equipment further comprises walking wheels, and the walking wheels are respectively arranged on the periphery of the shell, so that the shell can walk up and down along the inner wall of the in-situ pipe well through the walking wheels.

3. The existing in-situ tubular well block removing device as claimed in claim 1, wherein the connecting device is a universal device.

4. The existing in-situ tubular well segmented obstacle clearing device as claimed in claim 3, wherein the universal device comprises a fixed part and a rotating part, the rotating part is coaxially connected with the fixed part and can rotate relative to the fixed part, the fixed part is fixedly connected with the flexible high pressure pipe, the rotating part is fixedly connected with the rotating pipeline, and high pressure liquid in the flexible high pressure pipe can be transmitted to the rotating pipeline after passing through the fixed part and the rotating part.

5. The existing in-situ pipe well segmented obstacle clearing device as claimed in claim 1, wherein the connecting device comprises a connecting seat, a through hole penetrating up and down is arranged in the connecting seat, the upper end of the through hole of the connecting seat is connected with the flexible high-pressure pipe in a sealing manner, a bearing is arranged at the lower end of the through hole of the connecting seat, the bearing comprises an inner ring, an outer ring and a plurality of balls which are arranged between the inner ring and the outer ring and limited by a retainer, the upper end of the rotary pipeline is fixedly connected with the inner ring of the bearing in a sealing manner, and the outer ring of the bearing is fixedly connected with the connecting seat.

6. The existing in-situ pipe well block removing device according to claim 1, wherein the flexible high-pressure pipe is driven to move up and down by a winch.

7. The existing in-situ pipe well segmented obstacle clearing device as claimed in claim 1, wherein the motor transmission mechanism comprises a motor and a worm, the motor drives the worm to rotate, the worm drives the rotating disc to rotate, and the worm and the rotating disc form a worm gear and worm transmission pair.

8. The existing in-situ pipe well segmented obstacle removing method is characterized by comprising the following steps:

the method comprises the following steps that firstly, covering soil on the upper part of an in-situ pipe well is removed, so that the soil is exposed on the top of the in-situ pipe well;

step two, cutting the in-situ pipe well into a plurality of partial pipe sections from bottom to top by using the existing in-situ pipe well subsection obstacle clearing of any one of claims 1 to 7;

and thirdly, sequentially excavating local pipe sections from top to bottom by using a rotary drilling rig.

Technical Field

The invention belongs to the field of underground obstacle clearing, and particularly relates to a segmented obstacle clearing method and device for an existing in-situ pipe well.

Background

The underground obstacle clearing of the construction site is inevitable in the construction process, is complex, and has uncertainty on information such as the position, the shape, the size, the burial depth and the like of the underground obstacle. Before the construction of foundation pit engineering, the underground unknown obstacles in the construction site are inevitably removed and broken, so that the construction progress is prevented from being influenced by a large number of obstacles in the construction process of the enclosure structure.

At present, the following two methods are only needed for clearing the obstacle: (1) vibrating pile sinking and extracting machine: for the obstacles in the high environment requirement area, a vibration pile driver sinking and extracting mode is usually adopted for removing the obstacles, so that the method is simple, quick and effective, the construction noise is low, and the obstacles have vibration; is a common obstacle removing mode; (2) clearing obstacles by using a 360-degree full-slewing drilling machine: for underground obstacles with larger cross section and deeper burial depth, such as cast-in-situ bored piles and the like, the obstacles are more complicated, are removed by adopting a rotary cylinder pile extractor, and have formed a corresponding mature technology, so the cost is higher.

At present, no better method is available for removing underground obstacles such as in-situ tubular wells with deeper burial depth and small cross sections. The construction is carried out by adopting the existing open cut method technology, and because underground obstacles are deep, the influence on the environment is large, and the construction effect is poor; if the 360-degree full-rotation drilling machine technology is adopted for obstacle clearing, the method is high in construction cost and uneconomical due to the fact that the cross section of the obstacle is small.

Disclosure of Invention

The invention aims to provide a method and a device for removing obstacles by sections of an existing in-situ pipe well, which have practicability and operability, avoid using corresponding equipment such as a large-scale vibration pile driver, a full-slewing drilling machine and the like, reduce the influence on the environment, are convenient, rapid and safe to operate, and solve the problems of larger peripheral environment influence, larger production cost and the like generated in the process of removing underground obstacles.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides an existing normal position pipe well segmentation device of removing obstacles, includes a portable water cutting equipment who is used for cutting normal position pipe well, portable water cutting equipment includes water storage tank, booster pump, flexible high-voltage tube, casing, water sword tool bit, motor drive, rolling disc, rotatory pipeline and connecting device, the one end and the booster pump of flexible high-voltage tube are connected, the other end of flexible high-voltage tube stretch into in the casing with rotatory pipeline's upper end is passed through connecting device and is connected, rotatory pipeline's lower extreme setting water sword tool bit, flexible high-voltage tube with connecting device fixed connection, rotatory pipeline can be relative flexible high-voltage tube rotates, motor drive drives the rolling disc rotates, the rolling disc fixed cover is located on the rotatory pipeline, water in the water storage tank is behind the booster pump pressure boost, in proper order through flexible high-voltage tube, The connecting device and the rotary pipeline are ejected out through the water jet cutter head, and the shell, the water jet cutter head, the motor transmission device, the rotating disc, the rotary pipeline and the connecting device can move up and down in the in-situ pipe well along with the flexible high-pressure pipe.

Preferably, in foretell existing normal position tubular well segmentation obstacles removing device, portable water cutting equipment still includes the walking wheel, set up respectively around the casing the walking wheel makes the casing can be through the walking wheel along the inner wall of normal position tubular well is walked from top to bottom.

Preferably, in the existing in-situ pipe well subsection obstacle removing device, the connecting device is a universal device.

Preferably, in foretell existing normal position tubular well segmentation obstacles removing device, universal device includes fixed part and rotating part, the rotating part with fixed part coaxial coupling, just the rotating part can be relative the fixed part rotates, the fixed part with flexible high-pressure line fixed connection, the rotating part with rotatory pipeline fixed connection, just high-pressure liquid in the flexible high-pressure line can be transmitted to rotatory pipeline after fixed part and rotating part.

Preferably, in foretell existing normal position tubular well segmentation obstacles removing device, connecting device includes a connecting seat, be equipped with a through-hole that link up from top to bottom in the connecting seat, the connecting seat the upper end of through-hole with flexible high-pressure tube sealing connection, the connecting seat the lower extreme of through-hole is equipped with the bearing, the bearing includes inner circle, outer lane and sets up a plurality of balls by the holder spacing between inner circle, outer lane, the upper end of rotatory pipeline with the inner circle sealing fixed connection of bearing, the outer lane of bearing with connecting seat fixed connection.

Preferably, in the existing in-situ pipe well subsection obstacle clearing device, the flexible high-pressure pipe is driven by a winch to move up and down.

Preferably, in the existing in-situ pipe well segmented obstacle clearing device, the motor transmission mechanism comprises a motor and a worm, the motor drives the worm to rotate, the worm drives the rotating disc to rotate, and the worm and the rotating disc form a turbine and worm transmission pair.

The invention also discloses a segmented obstacle removing method for the existing in-situ pipe well, which comprises the following steps:

the method comprises the following steps that firstly, covering soil on the upper part of an in-situ pipe well is removed, so that the soil is exposed on the top of the in-situ pipe well;

step two, cutting the in-situ pipe well into a plurality of local pipe sections from bottom to top by utilizing the existing in-situ pipe well subsection obstacle clearing;

and thirdly, sequentially excavating local pipe sections from top to bottom by using a rotary drilling rig.

According to the technical scheme disclosed above, compared with the prior art, the invention has the following beneficial effects:

the existing in-situ pipe well segmented obstacle clearing device provided by the invention can move up and down in the in-situ pipe well along with the flexible high-pressure pipe through the shell, the water jet cutter head, the motor transmission device, the rotating disc, the rotating pipeline and the connecting device, therefore, the water cutter head can move to different depth positions of the in-situ pipe well, the booster pump is opened, after the water in the water storage tank is boosted by the booster pump, sequentially passes through a flexible high-pressure pipe, a connecting device and a rotary pipeline and then is sprayed by a water jet cutter head, high-pressure water cutting is carried out on the in-situ pipe well, so that the in-situ pipe well can be cut into a local pipe section which can be dug by a machine, the obstacle of the in-situ pipe well can be cleared, the device can avoid using corresponding equipment such as a large-scale vibration pile driver, a full-slewing drilling machine and the like, reduces the influence on the environment, is convenient, quick and safe to operate, and solves the problems of great peripheral environment influence, great production cost and the like in the process of removing underground obstacles.

Drawings

Fig. 1 is a schematic structural diagram of an existing in-situ pipe well segmented obstacle clearing device according to an embodiment of the invention;

FIG. 2 is a schematic view of a water jet scalpel head according to an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural diagram of a connecting device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a third step of an existing in-situ tubular well block clearing method according to an embodiment of the present invention.

In the figure: the drilling machine comprises a 1-in-situ pipe well, a 2-flexible high-pressure pipe, a 3-shell, a 4-water jet cutter head, a 5-motor transmission device, a 6-rotating disc, a 7-rotating pipeline, an 8-connecting device, an 81-connecting seat, an 82-bearing, a 9-travelling wheel, a 10-portable box body and an 11-rotary drilling rig.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. The technical contents and features of the present invention will be described in detail below with reference to the embodiments illustrated in the accompanying drawings. It is further noted that the drawings are in greatly simplified form and are not to precise scale, merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.