阅读说明：本技术 一种用于保护地下管道的注浆调平抬升方法 (Grouting leveling lifting method for protecting underground pipeline ) 是由 崔腾跃 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种用于保护地下管道的注浆调平抬升方法,包括浇筑保护注浆结合体、浇筑浅层筏形复合地基、管道调平浇筑、浇筑中层筏形复合地基、浇筑深层筏形复合地基。本发明的有益效果是：无需破拆,破坏地坪,而是充分利用了原有地坪和以下基层,利用浆液充填了地坪以下的土层,产生的工程垃圾大大减少,也节省了清理建筑垃圾的费用和时间,由于保留了原有地坪,从而节省了充填原有地坪的混凝土,达到了环保和节材的目的；所需设备结构简单可靠,安装布置灵活,场地适应力强,施工安全便捷,施工时无噪音,无振动,可以在不停产和不搬迁的情况下进行,工程造价低、工期短；能有效地保护地下管道,同时还能实现地下管道和地坪的双向调平。(The invention discloses a grouting, leveling and lifting method for protecting underground pipelines, which comprises the steps of pouring a protective grouting combination, pouring a shallow raft-shaped composite foundation, leveling and pouring pipelines, pouring a middle raft-shaped composite foundation and pouring a deep raft-shaped composite foundation. The invention has the beneficial effects that: the original terrace and the following base layer are fully utilized without breaking and destroying the terrace, and the soil layer below the terrace is filled with the slurry, so that the generated engineering garbage is greatly reduced, the cost and time for cleaning the construction garbage are saved, and the original terrace is reserved, so that the concrete for filling the original terrace is saved, and the purposes of environmental protection and material saving are achieved; the required equipment has simple and reliable structure, flexible installation and arrangement, strong site adaptability, safe and convenient construction, no noise and no vibration during construction, low construction cost and short construction period, and can be carried out under the conditions of no production stop and no removal; the underground pipeline can be effectively protected, and meanwhile, the bidirectional leveling of the underground pipeline and the terrace can be realized.)

1. A grouting leveling lifting method for protecting underground pipelines is characterized in that: the method comprises the following steps:

step one, pouring a protective grouting combination, and performing hole distribution grouting around the protected underground pipeline to form the protective grouting combination for the underground pipeline;

step two, pouring a shallow raft-shaped composite foundation, and performing hole distribution grouting on the superficial layer of the earth surface to form the shallow raft-shaped composite foundation;

thirdly, leveling and pouring the pipeline, grouting the upper part of the protective grouting combination by utilizing the drill hole and the new drill hole of the original protective grouting combination, controlling grouting pressure and grouting amount, and leveling the underground pipeline;

pouring the middle-layer raft-shaped composite foundation, and grouting near the protective grouting combination by utilizing the original drill holes and the new drill holes to form the middle-layer raft-shaped composite foundation;

and fifthly, pouring the deep raft-shaped composite foundation, and continuously downwards drilling to a certain depth below the middle layer raft-shaped composite foundation by utilizing the original drill holes and the new drill holes to perform grouting to form the deep raft-shaped composite foundation.

2. The grouting, leveling and lifting method for protecting underground pipes according to claim 1, characterized in that: in the first step, grouting holes are formed in the terrace right above the deformation bulge of the underground pipeline, and at least two grouting holes are formed.

3. The grouting, leveling and lifting method for protecting underground pipes according to claim 1, characterized in that: in the second step, the arranged grouting shallow holes are located in the settlement area and are uniformly arranged.

4. The grouting, leveling and lifting method for protecting underground pipes according to claim 1, characterized in that: and in the third step, the grouting area is a gap between the shallow raft-shaped composite foundation and the protective grouting combination body.

5. The grouting, leveling and lifting method for protecting underground pipes according to claim 1, characterized in that: and in the fifth step, during grouting, backward grouting is adopted.

Technical Field

The invention relates to a double leveling technology for a pipeline and a floor containing an underground pipeline, in particular to a grouting leveling lifting method for protecting the underground pipeline, and belongs to the technical field of building foundation reinforcement and deviation rectification.

Background

Practice proves that the grouting lifting technology is a reliable and economic inclination correcting lifting method for the existing building, and is widely adopted in building and railway engineering. The grouting lifting rectification technology means that uneven settlement occurs in the existing building, grouting is performed on the side with larger settlement, and the building is lifted and leveled, so that the rectification purpose is achieved.

At present, the existing grouting technology can realize terrace lifting of a common building, but the technical research on double leveling of a terrace containing underground pipelines below the terrace and the pipelines is less. If the excavation and reconstruction method is adopted, secondary damage to the building structure can be caused, and meanwhile, the construction cost is high.

Disclosure of Invention

The invention aims to solve the problems and provide a grouting leveling and lifting method for protecting underground pipelines.

The invention realizes the purpose through the following technical scheme: a grouting leveling and lifting method for protecting underground pipelines comprises the following steps:

step one, pouring a protective grouting combination, and performing hole distribution grouting around the protected underground pipeline to form the protective grouting combination for the underground pipeline;

step two, pouring a shallow raft-shaped composite foundation, and performing hole distribution grouting on the superficial layer of the earth surface to form the shallow raft-shaped composite foundation;

thirdly, leveling and pouring the pipeline, grouting the upper part of the protective grouting combination by utilizing the drill hole and the new drill hole of the original protective grouting combination, controlling grouting pressure and grouting amount, and leveling the underground pipeline;

pouring the middle-layer raft-shaped composite foundation, and grouting near the protective grouting combination by utilizing the original drill holes and the new drill holes to form the middle-layer raft-shaped composite foundation;

and fifthly, pouring the deep raft-shaped composite foundation, and continuously downwards drilling to a certain depth below the middle layer raft-shaped composite foundation by utilizing the original drill holes and the new drill holes to perform grouting to form the deep raft-shaped composite foundation.

As a still further scheme of the invention: in the first step, grouting holes are formed in the terrace right above the deformation bulge of the underground pipeline, and at least two grouting holes are formed.

As a still further scheme of the invention: in the second step, the arranged grouting shallow holes are located in the settlement area and are uniformly arranged.

As a still further scheme of the invention: and in the third step, the grouting area is a gap between the shallow raft-shaped composite foundation and the protective grouting combination body.

As a still further scheme of the invention: and in the fifth step, during grouting, backward grouting is adopted.

The invention has the beneficial effects that:

1. the original terrace and the following base layer are fully utilized without breaking and destroying the terrace, and the soil layer below the terrace is filled with the slurry, so that the generated engineering garbage is greatly reduced, the cost and time for cleaning the construction garbage are saved, and the original terrace is reserved, so that the concrete for filling the original terrace is saved, and the purposes of environmental protection and material saving are achieved;

2. the required equipment has simple and reliable structure, flexible installation and arrangement, strong site adaptability, safe and convenient construction, no noise and no vibration during construction, low construction cost, short construction period and obvious comprehensive benefit, and can be carried out under the conditions of no production stop and no relocation;

3. the underground pipeline can be effectively protected, and meanwhile, the bidirectional leveling of the underground pipeline and the terrace can be realized.

Drawings

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a schematic view of the first step of the present invention;

FIG. 3 is a schematic view of the construction of step two of the present invention;

FIG. 4 is a schematic view of the construction of step three of the present invention;

FIG. 5 is a construction diagram of the fourth step of the present invention;

FIG. 6 is a schematic view of the fifth step of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, a grouting leveling and lifting method for protecting an underground pipeline includes the following steps:

step one, pouring a protective grouting combination, and performing hole distribution grouting around the protected underground pipeline to form the protective grouting combination for the underground pipeline;

step two, pouring a shallow raft-shaped composite foundation, and performing hole distribution grouting on the superficial layer of the earth surface to form the shallow raft-shaped composite foundation;

thirdly, leveling and pouring the pipeline, grouting the upper part of the protective grouting combination by utilizing the drill hole and the new drill hole of the original protective grouting combination, controlling grouting pressure and grouting amount, and leveling the underground pipeline;

pouring the middle-layer raft-shaped composite foundation, and grouting near the protective grouting combination by utilizing the original drill holes and the new drill holes to form the middle-layer raft-shaped composite foundation;

and fifthly, pouring the deep raft-shaped composite foundation, and continuously downwards drilling to a certain depth below the middle layer raft-shaped composite foundation by utilizing the original drill holes and the new drill holes to perform grouting to form the deep raft-shaped composite foundation.

In the embodiment of the invention, in the first step, grouting holes are arranged on the terrace right above the deformation bulge of the underground pipeline, and at least two grouting holes are arranged.

In the embodiment of the invention, in the second step, the arranged grouting shallow holes are positioned in the subsidence area and are uniformly arranged.

Example two

Referring to fig. 1 to 6, a grouting leveling and lifting method for protecting an underground pipeline includes the following steps:

step one, pouring a protective grouting combination, and performing hole distribution grouting around the protected underground pipeline to form the protective grouting combination for the underground pipeline;

step two, pouring a shallow raft-shaped composite foundation, and performing hole distribution grouting on the superficial layer of the earth surface to form the shallow raft-shaped composite foundation;

thirdly, leveling and pouring the pipeline, grouting the upper part of the protective grouting combination by utilizing the drill hole and the new drill hole of the original protective grouting combination, controlling grouting pressure and grouting amount, and leveling the underground pipeline;

pouring the middle-layer raft-shaped composite foundation, and grouting near the protective grouting combination by utilizing the original drill holes and the new drill holes to form the middle-layer raft-shaped composite foundation;

and fifthly, pouring the deep raft-shaped composite foundation, and continuously downwards drilling to a certain depth below the middle layer raft-shaped composite foundation by utilizing the original drill holes and the new drill holes to perform grouting to form the deep raft-shaped composite foundation.

In the third step of the embodiment of the invention, the grouting area is a gap between the shallow raft-shaped composite foundation and the protective grouting combination body.

In the fifth step of the invention, during grouting, backward grouting is adopted to lift the underground pipeline and the ground.

The working principle is as follows: firstly, carrying out hole distribution grouting around the protected underground pipeline to form a protective grouting combination; then, holes are distributed on the superficial layer of the earth surface to form a superficial layer raft-shaped composite foundation; grouting the upper part of the protective grouting combination by using the drilled hole and the new drilled hole of the original protective grouting combination, controlling grouting pressure and grouting amount, and leveling the underground pipeline; grouting the position near the protective grouting combination by utilizing the original drilled hole and the new drilled hole to form a middle-layer raft-shaped composite foundation; and finally, continuously drilling downwards by utilizing the original drilling holes, and lifting the underground pipeline and the ground by adopting retreating type grouting to form a deep raft-shaped composite foundation, so that double leveling of the underground pipeline and the ground is realized.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.