阅读说明：本技术 一种高压帷幕注浆施工平台及其应用 (High-pressure curtain grouting construction platform and application thereof ) 是由 罗发胜 李彬 李栓平 张战友 黄俊韬 殷亚卓 赖志辉 彭德民 于 2021-10-11 设计创作，主要内容包括：本发明公开了一种高压帷幕注浆施工平台及其应用,其中,该平台包括在隧道内的掌子面一侧设有的平台体、在平台体上设有的斜坡、在斜坡两侧分别设有的水沟,及在平台体右侧设有从平台体内部延伸至水沟的排水钢管。本发明具有便于施工且提高施工效率,及节省成本的效果。(The invention discloses a high-pressure curtain grouting construction platform and application thereof, wherein the platform comprises a platform body arranged on one side of a tunnel face in a tunnel, a slope arranged on the platform body, ditches respectively arranged on two sides of the slope, and a drainage steel pipe extending from the interior of the platform body to the ditches. The invention has the effects of convenient construction, construction efficiency improvement and cost saving.)

1. A high-pressure curtain grouting construction platform is characterized by comprising a platform body arranged on one side of a tunnel face in a tunnel, a slope arranged on the platform body, ditches arranged on two sides of the slope respectively, and a drainage steel pipe arranged on the right side of the platform body and extending from the interior of the platform body to the ditches.

2. The high-pressure curtain grouting construction platform as claimed in claim 1, wherein the ditch is a groove for digging down a section of the platform and a section of a side of a slope.

3. The high-pressure curtain grouting construction platform as claimed in claim 2, wherein the platform body comprises a platform and a hardening layer provided on the platform.

4. The high-pressure curtain grouting construction platform according to claim 3, wherein the platform is 3.1m high; the thickness of the platform hardening layer is 15 cm; the total length of the platform is 10 m; the height between the hardening layer and the top surface of the tunnel arch is 4.7 m;

the width of the platform corresponds to the width of the tunnel.

5. The high-pressure curtain grouting construction platform as claimed in claim 1, wherein the slope has a length of 10 m.

6. The application of the high-pressure curtain grouting construction platform comprises the following specific steps:

(1) taking materials of hole slag dug in the tunnel at one side of the tunnel face, and manufacturing a platform with the height of 3.1 m;

(2) pre-burying a drainage steel pipe in the platform;

(3) laying a hardened layer of concrete on the platform;

(4) manufacturing a slope on the platform by using hole slag;

(5) digging a groove acting ditch on the section of the platform and the section of the side edge of the slope on the right side of the slope;

(6) finally, the drilling equipment drives into the platform, drilling can be carried out on the whole tunnel face through angle adjustment of the drilling equipment, and the construction platform does not need to be adjusted repeatedly;

the drainage steel pipe extends into the ditch.

7. The use of a high pressure curtain grouting construction platform as claimed in claim 6, wherein the platform is densely filled with grouting to prevent leakage of grouting when curtain grouting is performed.

8. The use of a high pressure curtain grouting construction platform as claimed in claim 6, wherein the drilling equipment is KLEMM KR805-2 type drilling equipment.

Technical Field

The invention relates to the field of curtain grouting construction platforms in tunnels, in particular to a high-pressure curtain grouting construction platform and application thereof.

Background

In recent years, with the increasing number of mountain tunnels in southern areas of China, mud outburst and water inrush phenomena occur in a plurality of tunnels, the tunnel construction progress and safety are seriously affected, and full-section curtain grouting is needed. The operation platform needs to be adjusted repeatedly under the limitation of the height and angle of the grouting drilling equipment and sudden water burst of the high-pressure water burst hole, and the operation platform needs to be arranged in order to shorten the construction period and complete advanced curtain grouting construction with quality and guarantee. Compared with the non-operating platform, the method has the advantages of convenience in construction, high efficiency and the like. In the process of curtain grouting, the construction period is influenced because no operation platform is arranged or the operation platform is unreasonable and needs to be adjusted repeatedly.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a high pressure curtain grouting construction platform and application thereof, which is convenient for construction, improves construction efficiency, and saves cost.

In order to achieve the above object, the present invention provides a high-pressure curtain grouting construction platform, which comprises a platform body arranged on one side of a tunnel face in a tunnel, a slope arranged on the platform body, ditches arranged on two sides of the slope, and a drainage steel pipe arranged on the right side of the platform body and extending from the inside of the platform body to the ditches.

In some embodiments, the raceway is a groove that digs downward into the deck section and the sloped side section.

In some embodiments, the platform body includes a platform and a hardened layer disposed on the platform.

In some embodiments, the plateau is 3.1m high. The thickness of the platform hardening layer is 15 cm. The total length of the platform is 10 m. The height between the hardened layer and the top surface of the tunnel arch is 4.7 m. The platform width corresponds to the width of the tunnel.

In some embodiments, the ramp length is 10 m.

Another purpose provides a high pressure curtain slip casting construction platform's application, wherein, concrete step is as follows:

(1) taking materials of hole slag dug in the tunnel at one side of the tunnel face, and manufacturing a platform with the height of 3.1 m;

(2) pre-burying a drainage steel pipe in the platform;

(3) laying a hardened layer of concrete on the platform;

(4) manufacturing a slope on the platform by using hole slag;

(5) digging a groove acting ditch on the section of the platform and the section of the side edge of the slope on the right side of the slope;

(6) finally, the drilling equipment drives into the platform, drilling can be carried out on the whole tunnel face through angle adjustment of the drilling equipment, and the construction platform does not need to be adjusted repeatedly;

the drainage steel pipe extends into the ditch.

In some embodiments, the platform is densely filled with grouting to prevent slurry leakage when curtain grouting is performed.

In some embodiments, the drilling apparatus is a KLEMM KR805-2 type drilling apparatus.

The invention has the advantages of convenient construction, improved construction efficiency and cost saving. Because the problems that the height and the angle of the existing tunnel inner curtain grouting drilling equipment cannot cover the full-section construction, the construction operation platform needs to be adjusted repeatedly and the like are solved, local materials are convenient to use after improvement, the drilling equipment drives into the operation platform, drilling can be carried out on the whole tunnel face through the angle adjustment of the drilling equipment, the construction platform does not need to be adjusted repeatedly, the influence of high-pressure water gushing holes is avoided, the purpose of full-section curtain grouting is achieved, and the loss of the construction period is avoided. Therefore, compared with the construction platform which is adjusted repeatedly, the construction platform has high cost performance, is a curtain grouting construction platform in the tunnel, greatly enriches the tunnel construction technology, and has extremely wide popularization value; in addition, when the drilling equipment drives into the operation platform, drilling can be carried out on the whole tunnel face through angle adjustment of the drilling equipment, the construction platform does not need to be adjusted repeatedly, and the influence of high-pressure water gushing holes is avoided, so that the purpose of full-section curtain grouting is achieved, and the loss of the construction period is avoided. The construction efficiency is improved and the cost is saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic side view of the present invention.

Detailed Description

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

As shown in fig. 1 to 3, a high-pressure curtain grouting construction platform includes a platform body 2 provided at one side of a tunnel face 1 in a tunnel, a slope 3 provided on the platform body 2, gutters 4 provided at both sides of the slope 3, and a steel drain pipe 5 provided at the right side of the platform body 2 and extending from the inside of the platform body 2 to the gutters 4. The ditch 4 is a groove for digging the section of the platform body 2 and the side section of the slope 3 downwards. The platform body 2 includes a platform 21 and a hardened layer 22 provided on the platform 21. The platform 21 is 3.1m high. The thickness of the platform hardening layer 22 is 15 cm. The platform 21 has a total length of 10 m. The height between the hardened layer 22 and the top surface of the tunnel arch is 4.7 m. The width of the platform 21 corresponds to the width of the tunnel. The ramp 3 has a length of 10 m.

The application of the high-pressure curtain grouting construction platform comprises the following specific steps: (1) taking hole slag dug in the tunnel from one side of the tunnel face 1, and manufacturing a platform 21 with the height of 3.1 m;

(2) pre-burying a drainage steel pipe 5 in the platform 21;

(3) laying a hardened layer 22 of concrete on the platform 21;

(4) a slope 3 is made on the platform 21 by adopting hole slag;

(5) a groove acting ditch 4 of the section of the platform 21 dug and taken on the right side of the slope 3 and the section of the side edge of the slope 3;

(6) finally, drilling equipment drives into the platform, drilling can be carried out on the whole tunnel face 1 through angle adjustment of the drilling equipment, and the construction platform does not need to be adjusted repeatedly;

the drain steel pipe 5 extends into the gutter 4.

The platform is filled compactly by grouting, so that the slurry leakage is prevented when curtain grouting is implemented.

The drilling equipment is KLEMM KR805-2 type drilling equipment.

During the application, solve present tunnel interior curtain slip casting drilling equipment height, angle can not cover full section construction, construction operation platform need adjust scheduling problem repeatedly, improve the back convenience of drawing materials on the spot, drilling equipment drives into operation platform, can carry out drilling to whole face 1 through drilling equipment angular adjustment, need not to adjust the construction platform repeatedly, avoids the influence that the hole was gushed to the high pressure to reach the purpose of full section curtain slip casting, avoid the loss of time limit for a project. Therefore, compared with the construction platform which is adjusted repeatedly, the construction platform has high cost performance, is a curtain grouting construction platform in the tunnel, greatly enriches the tunnel construction technology, and has extremely wide popularization value; in addition, when the drilling equipment drives into the operation platform, drilling can be carried out on the whole tunnel face 1 through angle adjustment of the drilling equipment, the construction platform does not need to be adjusted repeatedly, and the influence of high-pressure water gushing holes is avoided, so that the purpose of full-section curtain grouting is achieved, and the loss of a construction period is avoided.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.