CN211037024U

CN211037024U - Simple orifice grout stopping device for polyurethane chemical grouting

Info

Publication number: CN211037024U
Application number: CN201921820451.4U
Authority: CN
Inventors: 于建伟; 夏旋; 董汉伟; 杨洋; 尚永禄; 王林; 李永冬; 朱友清
Original assignee: Sinohydro Engineering Bureau 4 Co Ltd
Current assignee: Sinohydro Engineering Bureau 4 Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-17
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to the technical field of underground space construction, in particular to a simple orifice grout stopping device for polyurethane chemical grouting, which comprises an orifice plugging pipe, a grout inlet pipe and a fire water bag, wherein the left end and the right end of the fire water bag are respectively provided with a first opening and a second opening, the grout inlet pipe is transversely arranged inside the fire water bag through the first opening and the second opening in a penetrating way, the left end of the orifice plugging pipe is inserted into the fire water bag from the second opening, the right end of the orifice plugging pipe is arranged outside the fire water bag, the orifice plugging pipe and the grout inlet pipe are arranged in parallel, the first opening of the fire water bag is respectively hooped on the left area outside the grout inlet pipe through a hose clamp, the right ends of the grout inlet pipe and the orifice plugging pipe are respectively communicated and provided with a connecting transition joint, the grouting grout stopping device has wide application range in the underground water control link in the underground space construction field, and reduces grouting procedures, greatly improving the working efficiency, reducing the construction complexity and saving the construction cost.

Description

Simple orifice grout stopping device for polyurethane chemical grouting

Technical Field

The utility model relates to an underground space construction technical field specifically is a slurry stopping device is ended with simple and easy drill way to polyurethane chemistry grout.

Background

As is known, underground space construction field, mostly use underground factory building, the tunnel is leading to, and generally bury deeply, in excavation work progress, the tunnel excavation section is close the ground water level or when being under construction in the rich water stratum, all can receive the influence of groundwater, thereby make and influence engineering entity quality and construction progress, the incident takes place when serious even, cause personnel and loss of property for the engineering project, lead to the engineering project to stop building when more serious, consequently in underground space construction field, it is especially important to the administration work of groundwater. The underground water treatment link mainly combines 'blocking and draining, takes blocking as a main part and takes draining as an auxiliary part', but has the disadvantages of difficult blocking, long grouting period, slow water plugging effect and higher construction cost. In the underground water plugging link, in order to ensure the construction progress, when polyurethane is taken as a grouting material, single-point large strand-shaped, small strand-shaped and linear flowing water can be quickly plugged, so that favorable construction conditions are created, the construction period is shortened, and the construction progress is accelerated.

In the grouting plugging construction link, grouting can be started after a grouting grout stopping device is installed at a grouting hole section, the grout stopping device mainly comprises a mechanical expansion device and a hydraulic expansion device, but the grouting grout stopping device is expensive and is frequently used and difficult to install, the position of a hole opening which is more regular is more applicable, once the hole opening is in an irregular shape, the grouting grout stopping device is difficult to fix, the adaptability is poor, the use limitation is high, the grouting quality can be influenced even if the grouting device is installed, the grouting plugging construction link has the defects that the grouting grout stopping device is not firm, and the potential safety hazard that people are injured by rushing out can be generated, so that the use reliability is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an use material low price, installation easy operation is adapted to multiple drill way shutoff, improves adaptability, reduces and uses the limitation, improves the polyurethane chemistry grout of using the reliability and ends thick liquid device with simple and easy drill way.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a simple orifice grout stopping device for polyurethane chemical grouting, which comprises an orifice plugging pipe, a grout inlet pipe and a fire-fighting water bag, and the left end and the right end of the waterproof bag are respectively provided with a first opening and a second opening, the slurry inlet pipe is transversely arranged in the waterproof bag through the first opening and the second opening in a penetrating way, and the left end of the orifice plugging pipe is inserted into the fire-fighting water bag from the second opening, the right end of the orifice plugging pipe is positioned outside the fire-fighting water bag, the orifice plugging pipe and the pulp inlet pipe are arranged in parallel, the first opening of the waterproof bag is respectively hooped on the outer left area of the pulp inlet pipe through a hose clamp, and the second opening of the waterproof bag is hooped at the parallel position at the right side of the pulp inlet pipe and the orifice plugging pipe through the throat hoop, the right side area of the pulp inlet pipe is in arc-shaped bending, and the right ends of the pulp inlet pipe and the orifice plugging pipe are both communicated with each other and provided with a connecting transition joint.

Preferably, the orifice plugging pipe and the slurry inlet pipe are galvanized.

Preferably, the nominal diameter of the orifice plugging pipe and the nominal diameter of the pulp inlet pipe are both DN10mm, and the diameter of the waterproof bag is phi 65 mm.

(III) advantageous effects

Compared with the prior art, the utility model provides a polyurethane chemistry is grout with simple and easy drill way and ends thick liquid device possesses following beneficial effect:

this polyurethane chemistry is grout with simple and easy drill way grout stopping device, through the inside polyurethane of pouring into of drill way shutoff pipe to fire water bag, the inflation is pipe form or the inflation is filled to the irregular region of drill way in the twinkling of an eye in the fire water bag, thereby can fix whole firm in drill way department, play the grout, the effect of stagnant water, be adapted to multiple drill way shutoff, improve adaptability, reduce and use the limitation, to advance the thick liquid pipe and be connected with polyurethane grouting pump through connecting transition joint, carry out grouting construction operation through advancing the thick liquid pipe, whole low in cost, installation easy operation, it is firm to install, reduce the potential safety hazard, improve and use the reliability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an orifice plugging tube; 2. a pulp inlet pipe; 3. a waterproof bag; 4. a hose clamp; 5. and connecting a transition joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1, a simple orifice grout stopping device for polyurethane chemical grouting comprises an orifice plugging pipe 1, a grout inlet pipe 2 and a fire water bag 3, wherein the left end and the right end of the fire water bag 3 are respectively provided with a first opening and a second opening, the grout inlet pipe 2 is transversely arranged inside the fire water bag 3 through the first opening and the second opening, the left end of the orifice plugging pipe 1 is inserted into the fire water bag 3 from the second opening, the right end of the orifice plugging pipe 1 is arranged outside the fire water bag 3, the orifice plugging pipe 1 and the grout inlet pipe 2 are arranged in parallel, the first opening of the fire water bag 3 is respectively hooped on the left area outside the grout inlet pipe 2 through a throat hoop 4, the second opening of the fire water bag 3 is hooped on the parallel position on the right side of the grout inlet pipe 2 and the orifice plugging pipe 1 through the throat hoop 4, the right area of the grout inlet pipe 2 is curved in an arc shape, convenient and 1 position differentiation of drill way shutoff pipe, the polyurethane grouting pump of being convenient for communicate to advance thick liquid pipe 2 and drill way shutoff pipe 1's right-hand member all to communicate and be provided with connection transition joint 5, conveniently advance thick liquid pipe 2 and drill way shutoff pipe 1 and be connected with the polyurethane grouting pump, drill way shutoff pipe 1 and advance thick liquid pipe 2 and all do the zinc-plating and handle, increase the corrosion resistance of steel pipe, increase of service life, drill way shutoff pipe 1 and the nominal latus rectum of advancing thick liquid pipe 2 are DN10mm, and the diameter of fire-fighting water bag 3 is phi 65mm, reduces cost and overall quality, convenient to install and use.

To sum up, when the simple orifice grout stopping device for polyurethane chemical grouting is used, firstly, the grout stopping device can be manufactured according to the requirements, then, the grout outlet end of the grout inlet pipe 2 is inserted into a grouting hole, the fire-fighting water bag 3 is positioned at the orifice, then, the orifice plugging pipe 1 is connected with a polyurethane grouting pump through a connecting transition joint 5, polyurethane is poured into the fire-fighting water bag 3, the polyurethane consists of AB two mixed liquids, liquid A is combined polyether polyol, liquid B is modified isocyanate, the polyurethane and the AB two mixed liquids can expand within 5s to 15s, the volume of the polyurethane is 10 to 30 times of the original volume, the polyurethane expands and is fixed at the orifice, particularly, when the orifice is in an irregular shape under poor geological conditions, the shape of the polyurethane in the fire-fighting water bag 3 can be tubular or the water bag expands to pour the orifice shape by adjusting the injected amount of the polyurethane, the method comprises the steps of instantaneously plugging a gap between a grout stopping device and a drill hole to firmly fix the grout stopping device, then disassembling a polyurethane grouting pump and an orifice plugging pipe 1, enabling the polyurethane grouting pump to be communicated with a grout inlet pipe 2 through a connecting transition joint 5, formally grouting into a grouting hole, stopping grouting after achieving a grouting water stopping effect, and disassembling a connecting pipeline.

This polyurethane chemistry is grout is only with simple and easy drill way thick liquid device administers link application range to groundwater in underground space construction field wide, and the preparation is nimble, uses the material low price, is particularly suitable for the loose breakage of country rock, the anomalous position in drill way, and the construction drawback of drill way cluster thick liquid of avoiding simultaneously saves grouting material, has reduced the installation degree of difficulty of drill way device for the construction progress of being in a milk can use widely in later stage.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a polyurethane chemistry is grout with simple and easy drill way grout stopping device which characterized in that: comprises an orifice plugging pipe (1), a pulp inlet pipe (2) and a fire water bag (3), wherein the left end and the right end of the fire water bag (3) are respectively provided with a first opening and a second opening, the pulp inlet pipe (2) is transversely arranged inside the fire water bag (3) through the first opening and the second opening in a penetrating way, the left end of the orifice plugging pipe (1) is inserted into the fire water bag (3) from the second opening, the right end of the orifice plugging pipe (1) is positioned outside the fire water bag (3), the orifice plugging pipe (1) and the pulp inlet pipe (2) are arranged in parallel, the first opening of the fire water bag (3) is respectively hooped on the left area outside the pulp inlet pipe (2) through a throat hoop (4), and the second opening of the fire water bag (3) is hooped at the parallel positions on the right sides of the pulp inlet pipe (2) and the orifice plugging pipe (1) through the throat hoop (4), the right side area of the pulp inlet pipe (2) is in arc-shaped bending, and the right ends of the pulp inlet pipe (2) and the orifice plugging pipe (1) are communicated with each other to be provided with a connecting transition joint (5).

2. The simple orifice grout stopping device for polyurethane chemical grouting according to claim 1, wherein: and the orifice plugging pipe (1) and the slurry inlet pipe (2) are galvanized.

3. The simple orifice grout stopping device for polyurethane chemical grouting according to claim 1, wherein: the nominal diameter of the orifice plugging pipe (1) and the nominal diameter of the pulp inlet pipe (2) are DN10mm, and the diameter of the waterproof bag (3) is phi 65 mm.