CN210766783U

CN210766783U - Cut-off wall grooving mold and high polymer cut-off wall grouting equipment

Info

Publication number: CN210766783U
Application number: CN201921434155.0U
Authority: CN
Inventors: 郭成超; 杨建超; 石明生; 蔡兵华; 李忠超
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-16
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a cut-off wall grooving mould and high polymer cut-off wall slip casting equipment, including the grooving blade, grooving blade mid-mounting has vertical middle taper rod, vertical guide bar is installed to one side edge of grooving blade, and the lower extreme of guide bar stretches out downwards along middle taper rod lower extreme, and detachable's conical head is installed at the opposite side edge of grooving blade, and the conical head upper end is connected with the rubber stick, and the rubber stick upper end extends to ground. The utility model has the advantages that: 1. the guide rod is arranged, so that when a subsequent slotted hole is constructed, the guide rod can be connected in the last slotted hole of the adjacent preceding slotted hole, the grooving direction can be conveniently adjusted when the subsequent slotted hole is grooved, the trepanning accuracy can be improved, and the deviation accumulation is further reduced; 2. set up detachable conical head, conical head connection rubber stick for when being extracted after the grooving mould construction grooving, conical head and grooving blade can separate, and the upper and lower intercommunication and the exchange of outside air and slotted hole air can be realized to conical head and the rubber stick of connecting.

Description

Cut-off wall grooving mold and high polymer cut-off wall grouting equipment

Technical Field

The utility model belongs to the technical field of the construction of high polymer cut-off wall, concretely relates to cut-off wall grooving mould and high polymer cut-off wall slip casting equipment.

Background

Water conservancy infrastructure affairs are related to the country and are civilian, and political, social and economic development is inseparable with it, occupies important position in the national strategy. According to incomplete statistics, as far as 2015, 9.8 thousands of reservoirs are built in China, 28 thousands of kilometers of river, lake and sea dikes are built and reinforced, and the water conservancy infrastructures play an important role in economic development, social progress and environmental improvement of China. Most of the water conservancy infrastructures in China are built in the last 50 th century, limited by the technical level and economic conditions at that time, most of the water conservancy infrastructures have congenital defects, and the water conservancy infrastructures are out of repair for a long time, so that the current risks are high and the safety situation is severe. By 2014, 5.6 ten thousand seats of the reservoir with the risk are found nationwide, and the risk rate is as high as 57.1%. The national flood disaster in 2016 further aggravates the task of removing risks and reinforcing dams.

The diaphragm wall is a continuous wall structure which can improve the waterproof performance of the structure in projects such as dams in a reservoir area, coastal river roads and the like, and has important significance for guaranteeing the project safety and protecting the life and property safety of people. The cement mixing pile seepage prevention technology, the high spray grouting seepage prevention technology and the concrete wall seepage prevention technology have the defects of huge equipment, high requirements on construction site fields, difficulty in adoption of small-sized projects and the like, and the actual requirements of seepage prevention and reinforcement of the dam in danger are difficult to meet. From the last 60 years, organic polymer chemical grouting materials represented by polyurethane and grouting technology thereof are widely concerned by scholars and engineers at home and abroad, and among them, the non-aqueous reaction type high polymer material is the most widely used material for constructing the impervious wall due to the advantages of light weight, early strength, large expansion force, no pollution, good seepage-proofing performance, excellent durability and mechanical property, etc.

The lengths of guide columns on two sides of a middle conical head of the existing grooving mold are the same, a static pressure groove is adopted when a high polymer impervious wall is constructed into a groove, the grooving mold with a certain specification is pressed into a dam soil body to form a long and narrow sleeve connection groove hole mold, but the construction process can not adjust the grooving direction in the grooving process, and the problems of deviation accumulation, insufficient verticality and the like can occur; meanwhile, the guide rod of the grooving die is too short, so that the trepanning accuracy is insufficient, and the continuity and uniformity of high polymer wall forming are difficult to ensure.

SUMMERY OF THE UTILITY MODEL

For solving among the prior art construction process can not adjust the grooving direction in the grooving process, the accumulative total problem of deviation and the problem that trepanning accuracy is not enough probably appear, the utility model provides a cut-off wall grooving mould and high polymer cut-off wall slip casting equipment.

The purpose of the utility model is realized with the following mode:

the utility model provides a cut-off wall grooving mould, includes grooving

blade

5, 5 mid-mounting of grooving blade have vertical middle taper rod 3, vertical guide rod 4 is installed at one side edge of grooving blade 5, and the lower extreme of guide rod 4 stretches out downwards along 3 lower extremes of middle taper rod, and detachable's conical head 2 is installed at the opposite side edge of

grooving blade

5, and 2 upper ends of conical head are connected with rubber stick 1, and 1 upper ends of rubber stick extend to ground.

The middle taper rod 3 is of a hollow structure, wherein a hollow cavity body is used for installing the grouting pipe 6.

The conical head 2 is fixed on the grooving blade 5 through a binding wire.

The rubber rod 1 is a soft rubber rod, and an anti-abrasion layer used for reducing the friction force between the soft rubber rod and a soil body is wrapped outside the soft rubber rod.

The anti-abrasion layer is a polyethylene resin film.

The utility model provides a high polymer cut-off wall slip casting equipment, includes cut-off wall grooving mould and static grooving machine 15, install slip casting pipe 6 in the middle taper rod 3 of grooving mould, the top of slip casting pipe 6 is connected with and is located subaerial slip casting rifle 7, the grooving mould is installed on static grooving machine 15.

And a level gauge 14 for detecting the verticality of the grooving die is arranged on a clamping box slideway of the static grooving machine 15.

The level meter is a Digi-Pas DWL 1000XY double-axis measuring column electronic level meter.

Compared with the prior art, the utility model has the advantages as follows:

1. the length of the guide rod on one side of the grooving blade is set to be longer than that of the middle taper rod and extends out along the lower end of the middle taper rod, so that the guide rod can be connected in the last slotted hole of the adjacent preorder slotted hole when constructing a postorder slotted hole, the grooving direction can be conveniently adjusted when the postorder slotted hole is grooved, the trepanning accuracy can be improved, and the problem of deviation accumulation is further reduced; the lengthened guide rod can ensure better lap joint between the front slotted hole and the rear slotted hole so as to form a wall continuously;

2. the detachable conical head is arranged on the other side of the grooving blade and connected with the rubber rod, so that when the grooving die is pulled out after being constructed into a groove, the conical head and the grooving blade can be separated, the conical head and the rubber rod connected with the conical head can realize the up-and-down communication and exchange of the external air and the air in the groove hole, the balance of the air pressure inside and outside the groove hole can be ensured, the phenomenon that the vacuum in the groove hole on the lower part cannot be discharged due to the fact that the grooving die is pulled out is effectively avoided, and the formation of a positioning lap joint hole with a preorder groove hole during the construction of the subsequent groove hole is facilitated;

3. the device is provided with the high polymer diaphragm wall grouting equipment integrating lifting and grouting, so that high polymer grouting is carried out while a grooving mold is lifted, the lifting speed and the grouting pressure are controlled, the vacuum caused by the fact that the mold is pulled out in the original equipment process is effectively avoided, the expansive force generated by chemical reaction of high polymer is utilized simultaneously, the slotted hole is rapidly filled, the occurrence of hole collapse and hole shrinkage is prevented, and the wall quality is more compact and uniform.

Drawings

Fig. 1 is a schematic structural view of the grooving die of the present invention.

FIG. 2 is a schematic view of the grouting equipment for polymer diaphragm wall and its sag control.

Fig. 3 is a side view of a groove hole formed on a dam.

FIG. 4 is a schematic of a panel of a Digi-Pas DWL 1000XY dual axis column electron level.

FIG. 5 is a schematic diagram of the wall-forming effect of high polymer.

Fig. 6 is a top view of fig. 5.

The device comprises a rubber rod 1, a conical head 2, a middle conical rod 3, a middle conical rod 4, a guide rod 5, a grooving blade 6, a grouting pipe 7, a grouting gun 8, a dam 9, a grooving mold 10, a front slotted hole 11, a rear slotted hole 12, a grooving rod 13, a clamping box 14, a level gauge 15, a static grooving machine 16 and a slotted hole.

Detailed Description

As shown in fig. 1, an impervious wall grooving mold comprises a grooving blade 5, wherein a vertical middle conical rod 3 is mounted in the middle of the grooving blade 5, a vertical guide rod 4 is mounted at the edge of one side of the grooving blade 5, the lower end of the guide rod 4 extends downwards along the lower end of the middle conical rod 3, a separable conical head 2 is mounted at the edge of the other side of the grooving blade 5, a rubber rod 1 is connected to the upper end of the conical head 2, and the upper end of the rubber rod 1 extends to the ground. The grooving blade 5 is composed of a left blade and a right blade, both of which are trapezoidal, as shown in fig. 1. The lower end of the middle conical rod 3 is conical.

In order to realize simultaneous lifting and grouting, the middle taper rod 3 is of a hollow structure, wherein a cavity body is used for installing a grouting pipe 6. The injection pipe can be directly brought into the specified depth in the pressing process of the mold, and secondary disturbance to the hole wall when the drilling tool is pulled out and then the injection pipe is poured is avoided.

In order to facilitate the separation of the conical head 2, the conical head 2 is fixed on the grooving blade 5 through a binding wire (not shown in the figure), and the grooving blade 5 is provided with a corresponding fixing hole (not shown in the figure) for the binding wire to be fixed through the hole. Due to the limited strength of the binding wires, when the grooving die 9 is pulled out, the binding wires are broken under tension, the grooving die 9 is separated from the conical head 2, and the conical head 2 and the rubber rod 1 are left in the grooving holes.

Preferably, the rubber rod 1 is a soft rubber rod, and an anti-abrasion layer for reducing the friction force between the soft rubber rod and the soil body is wrapped outside the soft rubber rod.

Preferably, the wear-resistant layer is a polyethylene resin film.

As shown in fig. 2, the utility model provides a high polymer cut-off wall slip casting equipment still, include cut-off wall grooving mould 9 and static groove pressing machine 15, install the slip casting pipe in the middle taper rod 3 of grooving mould, the top of slip casting pipe is connected with and is located subaerial slip casting rifle (not drawn in the picture), the grooving mould is installed on static groove pressing machine 15. The grouting pipe and the grouting gun are bonded by using an adhesive tape, the lower end of the grouting pipe is not provided with a spray head, the spray head can be installed, and the spray head is completely accommodated in the middle conical rod 3 when the spray head is installed. The static groove rolling machine 15 is a prior art, preferably a crawler-type static groove rolling machine, and the static groove rolling machine 15 may be a device manufactured by nyc 60B, a model of which is manufactured by shinan skyscraper and engineering equipment limited company, or may be other existing devices.

In order to ensure the perpendicularity of the static groove pressing, as shown in fig. 3, a level gauge 14 for detecting the perpendicularity of the grooving mold is mounted on a clamping box slide way of the static groove pressing machine 15.

Preferably, the level is a dual axis dipstick electronic level. Specifically, a Digi-Pas DWL 1000XY dual-axis column electronic level is used, which has the following advantages, as shown in fig. 4: 1) the measuring range is 0-90 degrees, the X/Y axes are synchronously measured, and angles and graphs are digitally displayed; 2) four orientation icons indicating measurement angles (X/Y axes); 3) the resolution is as high as 0.1 degree, the highest precision can reach +/-0.05 degree under 0 degree, and the precision can be +/-0.2 degree under other angles; 4) there is an audible cue at 0 °, 90 ° or a specified angle.

The construction process of the high polymer impervious wall comprises the following steps:

step one, construction lofting, namely arranging the position of a slotted hole 16 according to design requirements;

step two, equipment installation: firstly, a level meter is arranged near a clamping box slideway of a static force notching press 15, a grouting pipe is arranged in a middle taper rod 3 in a grooving mold 9, the upper end of the grouting pipe is communicated with a grouting gun, a separable taper head 2 is arranged on one side of the grooving mold 9, a guide rod 4 is arranged on the other side of the grooving mold 9, and the lower end of the guide rod 4 extends downwards along the middle taper rod 3;

step three, static pressure grooving: utilizing static pressure grooving equipment to press the grooving mold 9 into the soil body in a static force manner at the position aligned with the slotted hole 16 arranged in the first step, and forming a preorder slotted hole 10 after reaching a preset design depth, as shown in figure 2;

step four, lifting and grouting to form a whole body: lifting a grooving mold 9 upwards by using static pressure grooving equipment, starting a grouting gun to perform grouting through a grouting pipe, expanding grout from bottom to top through chemical reaction volume to fill a slot hole 16 to form a sheet high polymer anti-seepage body, separating a conical head 2 from the grooving mold 9 and remaining in the slot hole 16 during the lifting, completing the grouting simultaneously when the lifting is completed, forming a preorder anti-seepage wall, and vertically pulling out the conical head 2 upwards through a rubber rod 1 to form a connecting hole;

step four, trepanning: then the conical head 2 is fixed on the grooving die 9 through a binding wire, and the lower end of the guide rod 4 on the grooving die 9 is sleeved in the connecting hole of the preorder slotted hole 10;

step five, forming the continuous impervious wall: repeating the operations of static pressure grooving, lifting grouting integrated forming and trepanning to gradually form a subsequent slotted hole 11 and a subsequent impervious wall so as to form the continuous impervious wall, as shown in figures 5 and 6;

step six: and (3) finishing the construction of the high polymer impervious wall: and after grouting is completed on all the slotted holes and the design strength is reached, the construction of the impervious wall is completed.

The utility model provides high polymer slip casting slotted hole sag and trepanning precision have reduced the mould skew that takes place in the work progress effectively, can make the high polymer become the wall more closely knit even quality simultaneously, and for the prevention of seepage reinforcement in reservoir area dykes and dams, coastal river (river) road, weak soil area provides advanced, high-efficient, accurate, practical technological measure, prevent that diseases such as seepage water appear inside reservoir area dam body, coastal river (river) road, realize the prevention of seepage reinforcement to building structure.

What has been described above is only the preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, without departing from the overall concept of the present invention, a plurality of changes and improvements can be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the utility of the patent.

Claims

1. The utility model provides an impervious wall grooving mould, includes grooving blade (5), and grooving blade (5) mid-mounting has vertical middle taper rod (3), its characterized in that: vertical guide rod (4) are installed at one side edge of grooving blade (5), and the lower extreme of guide rod (4) stretches out downwards along middle taper rod (3) lower extreme, and detachable conical head (2) are installed at the opposite side edge of grooving blade (5), and conical head (2) upper end is connected with rubber rod (1), and rubber rod (1) upper end extends to ground.

2. The diaphragm wall grooving die of claim 1, wherein: the middle taper rod (3) is of a hollow structure, wherein a hollow cavity body is used for installing the grouting pipe (6).

3. The diaphragm wall grooving die of claim 1, wherein: the conical head (2) is fixed on the grooving blade (5) through a binding wire.

4. The diaphragm wall grooving die of claim 1, wherein: the rubber rod (1) is a soft rubber rod, and an anti-abrasion layer used for reducing the friction force between the soft rubber rod and a soil body is wrapped outside the soft rubber rod.

5. The diaphragm wall grooving die of claim 4, wherein: the anti-abrasion layer is a polyethylene resin film.

6. A high polymer impervious wall grouting equipment is characterized in that: the diaphragm wall grooving die comprises the diaphragm wall grooving die and a static grooving machine (15) as claimed in any one of claims 1 to 5, a grouting pipe (6) is mounted in a middle conical rod (3) of the grooving die, a grouting gun (7) located on the ground is connected to the top end of the grouting pipe (6), and the grooving die is mounted on the static grooving machine (15).

7. The polymer diaphragm wall grouting equipment of claim 6, wherein: and a level gauge (14) for detecting the verticality of the grooving die is arranged on a clamping box slideway of the static grooving machine (15).

8. The polymer diaphragm wall grouting apparatus of claim 7, wherein: the gradienter is a double-shaft measuring column electronic gradienter.