CN113186974A

CN113186974A - Civil engineering shielding engineering wall member

Info

Publication number: CN113186974A
Application number: CN202110576948.1A
Authority: CN
Inventors: 丛峰松; 斎喜重信
Original assignee: Shanghai Zhaixi Engineering Technology Co ltd
Current assignee: Shanghai Zhaixi Engineering Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-07-30
Also published as: WO2022246941A1

Abstract

The invention relates to the field of constructional engineering, in particular to a civil shielding engineering wall member (1), which comprises a vertical wallboard (2), wherein a bottom plate (3) is arranged below the wallboard (2), and the civil shielding engineering wall member is characterized in that: the wallboard (2) and the bottom plate (3) are fixedly connected to form an integral component, and an included angle alpha between the wallboard (2) and the bottom plate (3) is an obtuse angle. The beneficial effects are that: the friction between the bottom plate and the foundation and the anti-overturning moment of the wall are greatly increased, and the anti-sliding and anti-overturning performances of the wall are remarkably enhanced; the buried depth of the outer side of the wall body is reduced, the available height of the wall body is increased, the dead weight is reduced, and the cost of raw materials is greatly reduced; the wall body and the bottom plate are integrally prefabricated components, so that the wall body and the bottom plate are convenient for batch production, low in manufacturing cost, high in precision, convenient to install, short in construction period and small in environmental influence. The method is particularly suitable for civil construction under the conditions of steep mountain sloping fields and the like, is widely applied to the projects of road, mine, terrace, village construction, river desert control and the like, and has very considerable market prospect.

Description

Civil engineering shielding engineering wall member

Technical Field

The invention relates to a building apparatus, namely a civil shielding engineering wall member.

Background

The civil shielding engineering wall is commonly called as a retaining wall, and is used for blocking and fixing materials such as sloping fields or mountain bodies, large amounts of earth and stones and the like in the building engineering and preventing the materials from sliding. In projects such as railways, highways, mines, water conservancy, urban traffic and the like, particularly under environmental conditions such as steep mountains, sloping fields and the like, the retaining wall is required to be divided into blocks. Retaining walls are also used in projects such as terrace construction in mountainous areas, village construction, and desert control. The existing retaining wall mainly comprises a vertical wall plate and a lower bottom plate, and is mainly made of materials such as reinforced cement in a cast-in-place or prefabricated mode. The cast-in-place is to perform integral casting molding on the design position of the wall. The prefabrication is that a single wallboard is manufactured in advance through forming equipment, and the wallboards are butted to form a wall body. The prefabricated wall board has the advantages of accurate modeling, short construction period of the wall body building, small disturbance of the field environment, reduction of environmental pollution, easy control of construction quality and the like, and is widely applied to the retaining wall building.

However, in the existing retaining wall member, the included angle between the bottom plate and the vertical wall plate is a right angle of 90 degrees. The material on one side of the wall will, in addition to the downward gravity, also divide a horizontal lateral pressure to one side of the wall. This lateral pressure can cause the wall to slip outward or to overturn outward. Therefore, only walls that can resist this lateral pressure are stable. From the mechanics knowledge: to prevent the wall from slipping, there must be sufficient friction between the floor and the underlying foundation. To prevent the wall from turning over, the pressure above the floor must produce a greater moment opposite to the direction of turning over than the moment of turning over. And the friction force is the product of the coefficient of friction between the contacting materials and the vertical pressure. The moment of anti-overturning is the product of the vertical pressure on the bottom plate, especially the outer end of the bottom plate, and the distance of the wall. It is clear that the weight of the material above the floor is an important component of this vertical pressure, which is already established when the wall is built. Therefore, in order to prevent the wall from slipping, the friction between the bottom plate and the foundation and the anti-overturning moment of the whole wall must be increased by improving the mechanical property of the wall member. Therefore, in the existing engineering, the method of increasing the dead weight of the wall body, increasing the length of the bottom plate and increasing the buried depth of the outer side of the wall body is mainly adopted to resist the sliding and overturning of the wall body. Obviously, the above-mentioned methods all need to increase the specification of the wall board, will all improve the cost of the wall body, will increase the difficulty and cost of the wall body construction too.

In addition, mostly be the components of a whole that can function independently structure between current prefabricated wallboard and the bottom plate, need assemble at the job site, the wholeness is relatively poor, and joint strength is lower, and has increased the degree of difficulty of construction.

Furthermore, in high-risk places such as debris flow, landslide, large-volume material collapse and the like, the retaining wall body is damaged, so that slippage and overturning accidents are caused. The existing retaining wall body does not have any accident prediction and alarm functions. The equipment with the functions of forenotice and alarm belongs to high-tech products, has high cost and is not suitable for being applied to conventional civil engineering.

Disclosure of Invention

The invention aims to provide a civil shielding engineering wall member which has high stability, good anti-slip and anti-overturning performances, smaller self weight, convenient production and construction, short installation period and small negative environmental influence.

The civil shielding engineering wall member has the function of forecasting or alarming slip overturning faults and can prevent loss caused by geological disasters.

The above purpose is realized by the following technical scheme: the utility model provides a civil engineering shielding engineering wall body component, is equipped with the bottom plate including the wallboard of erectting below the wallboard, and its characteristics are: the included angle between the wallboard and the bottom plate is an obtuse angle.

The wall plate and the bottom plate are fixedly connected to form an integral prefabricated part, and the included angle between the wall plate and the bottom plate is 100-110 degrees.

The included angle between the wallboard and the bottom plate is 105 degrees.

A buttress is arranged between the wallboard and the bottom plate.

And grooves or grooves and tenons which are matched with each other are arranged on the two side edges of the wallboard respectively.

And drain holes are formed in the side edges of the wall boards.

The width of the outer end of the bottom plate is smaller than that of the inner side of the bottom plate.

The bottom plate is provided with a ground foot hole capable of being provided with a ground foot.

And a deformation alarm is arranged below the bottom plate.

The shell of the deformation alarm is a sleeve, the sleeve is divided into an upper sleeve and a lower sleeve, the upper end of the upper sleeve is connected with the bottom plate, the upper end of the lower sleeve is in sliding insertion with the lower part of the upper sleeve, a flexible seal is arranged between the upper end of the lower sleeve and the lower end of the upper sleeve, a pull rod is arranged in the sleeve, the upper end of the pull rod is connected with the bottom plate, the lower part of the lower sleeve stretches out of a rod-shaped movable electrode to one side, a fixed electrode is arranged above the movable electrode, the lower part of the fixed electrode is connected with the base of the lower sleeve, wires are respectively arranged on the movable electrode and the fixed electrode, and the two wires stretch out of the wall body component and the power supply and the alarm device to form a circuit of the alarm.

And an action amplifying device is arranged between the pull rod and the movable electrode of the deformation alarm.

The action amplifying device between the pull rod and the movable electrode is as follows: one section of the lower part of the pull rod is provided with a vertical driving rack, the driving rack is in transmission with a pinion, the pinion is coaxial with a gearwheel, the gearwheel is in transmission with a vertical driven rack, and the movable electrode is arranged on one side of the driven rack.

The upper sleeve and the pull rod penetrate through the bottom plate and are connected with the wallboard through the counterfort upwards.

The invention has the beneficial effects that: the included angle between the wall plate and the bottom plate is an obtuse angle, the friction force between the bottom plate and the foundation and the anti-overturning moment of the wall body are greatly increased, and the anti-sliding and anti-overturning performance of the wall body is obviously enhanced; the buried depth of the outer side of the wall body is reduced, the available height of the wall body is increased, the dead weight is reduced, and the cost of raw materials is greatly reduced; the wall body and the bottom plate are integrally prefabricated components, so that the wall body and the bottom plate are convenient for batch production, low in manufacturing cost, high in precision, convenient to install, short in construction period and small in environmental influence. The method is particularly suitable for civil construction under the conditions of steep mountain sloping fields and the like, is widely applied to the projects of road, mine, terrace, village construction, river desert control and the like, and has very considerable market prospect.

Drawings

FIG. 1 is a front view of the first embodiment;

FIG. 2 is a left side view of the first embodiment;

FIG. 3 is a top view of the first embodiment;

FIG. 4 is a prior art block diagram of a first embodiment;

FIG. 5 is a view showing an installation structure of the first embodiment;

FIG. 6 is a front view of the second embodiment;

FIG. 7 is a left side view of the second embodiment;

FIG. 8 is a top view of the second embodiment;

FIG. 9 is a front view of the third embodiment;

FIG. 10 is a left side view of the third embodiment;

FIG. 11 is a front view of the fourth embodiment;

FIG. 12 is a left side view of the fourth embodiment;

FIG. 13 is a front view of the fifth embodiment;

FIG. 14 is a left side view of the fifth embodiment;

FIG. 15 is a top view of the fifth embodiment;

FIG. 16 is a front view of a wall element according to a sixth embodiment;

FIG. 17 is a right side elevational view of a wall member according to a sixth embodiment;

FIG. 18 is a perspective view of a wall member of a sixth embodiment;

FIG. 19 is an assembled perspective view of a wall element according to a sixth embodiment;

FIG. 20 is a front view of the mechanical parameter analysis of the experimental wallboard of the sixth embodiment;

FIG. 21 is a top plan view of a sixth embodiment of an experimental panel with mechanical parameter analysis;

FIG. 22 is a front view of the seventh embodiment;

FIG. 23 is an enlarged front elevational view of a component deformation alarm of the seventh embodiment;

FIG. 24 is a simplified circuit diagram of the seventh embodiment;

FIG. 25 is a front view of the eighth embodiment;

FIG. 26 is a front view of the ninth embodiment;

FIG. 27 is an enlarged fragmentary view of the ninth embodiment;

fig. 28 is a partially enlarged view of the ninth embodiment.

It can be seen in the figure that: the wall body component comprises a wall body component 1, a wallboard 2, a bottom plate 3, a counterfort 4, a groove 5, a water drainage hole 6, a tenon 7, a ground foot hole 8, a deformation alarm 9, a sleeve 10, an upper sleeve 11, a lower sleeve 12, a pull rod 13, a movable electrode 14, a fixed electrode 15, a lead 16, a hanging ring 17, a positioning disc 18, a driving rack 19, a pinion 20, a gearwheel 21 and a driven rack 22.

Detailed Description

The first embodiment: in order to improve the performance of the existing retaining wall, a civil shielding engineering wall body component is provided. As shown in fig. 1, 2 and 3, the main body of the wall element 1 is also an upright wall panel 2, and a bottom plate 3 extending to one side of the wall panel is arranged below the wall panel. The improvement is as follows: the wall plate and the bottom plate are fixedly connected together, and are preferably reinforced concrete prefabricated members. The included angle between the wall plate and the bottom plate is not a right angle, but an obtuse angle which is larger than 90 degrees. The obtuse angle should be between 100-110 degrees, preferably 105 degrees, based on a number of experiments and calculations.

Fig. 4 illustrates a prior art wall panel installation configuration where the wall panel is at a 90 degree angle to the base panel, requiring a large area of hard foundation to be installed and a large burial depth on the outside.

FIG. 5 shows the installation structure of the wall panel, because the included angle between the bottom plate and the wall panel is an obtuse angle, which can reach 105 degrees, the hard foundation only needs 3\1 or 2\1 originally. And the outer side does not need to be buried deeply, which is equivalent to reducing a section of wall body. Experiments prove that the wall body with the height of 2000mm needs 500mm for the burial depth of fig. 4, and the wall body with the height of fig. 5 does not need the burial depth, so that a part of raw materials and working hours are saved. In addition, the friction force and the anti-overturning moment of the structure are greatly increased, and the specification of the self body is reduced. Experiments and calculation show that for the same anti-slip and anti-overturn indexes, the self weight ratio of the original retaining wall board to the wall member is 2800: 805.

further, the width of the outer end of the bottom plate is smaller than that of the inner side. As shown in fig. 2 and 3, the base plate is not a complete square or rectangle, but an outer end edge is shorter than an inner end edge, i.e. the junction line of the base plate and the wall plate, forming a trapezoidal plate. The advantage of this shape is that the side of two adjacent wall panels can form a certain included angle when building a curved retaining wall. Of course, the construction is also convenient for the straight wall. Of course, for a straight wall, instead of using such a trapezoidal floor, a rectangular floor may be made.

The second embodiment: the improvement is based on the first embodiment. As shown in fig. 6, 7 and 8, a buttress 4 is arranged between the wall plate 2 and the bottom plate 3. It can be seen from the figure that the buttress is a reinforcing rib commonly used in a rigid member, and can be a triangular plate surface, the inner side edge of the buttress is fixedly connected with the wallboard, the bottom side edge of the buttress is fixedly connected with the bottom plate, and the buttress is preferably an integral part which is poured with the wallboard and the bottom plate at one time, and can play a role in supporting and connecting the wallboard.

Third embodiment: improved on the basis of the previous embodiment. As shown in fig. 9 and 10, grooves 5 are arranged on two side edges of the wall plate. If the retaining surface of the wall panel is referred to as the inner surface and the outer surface is referred to as the outer surface, the two sides are referred to herein as the left and right sides, i.e., the sides of the thickness of the wall panel. Such standing grooves 5 are provided on both sides, the cross-section of which may be semicircular or triangular or the like. The function of the groove is to close the joint of the wall panel. Because a plurality of wall panels are assembled one after another when the retaining wall is constructed. The joint seam between two adjacent wallboards needs to be airtight, and with the groove, cement mortar or other adhesives can be filled in the groove, and the adjacent wallboards can be firmly bonded together after being butted, so that the strength and the airtight performance of the retaining wall are greatly enhanced.

In addition, aiming at the problem that the existing retaining wall needs to be additionally provided with a drainage pipeline, the drainage holes are arranged at the joint of the wall plate, so that the original drainage device is omitted. As shown, the drain holes 6 of each wall plate are half holes and are positioned below the grooves. When the retaining wall is combined, after the two wallboards are opposite, the two half holes are paired together to form a through hole, so that accumulated water in the soil stone material on one side of the retaining wall can be discharged in time.

The fourth embodiment: improved on the basis of the third embodiment. As shown in fig. 11 and 12, two sides of the wall plate 2 are provided with a groove 5 and a tenon 7 which are matched with each other. Namely, the left side and the right side of the same wallboard are respectively provided with a groove and a tenon. When two adjacent wallboards are butted when a wall is built, the tenon of one wallboard is just inserted into the groove of the other wallboard. Therefore, the two wall boards can be tightly connected, and meanwhile, the seam is adjacent to the upper part and the lower part of the drain hole, so that the drainage function can be further enhanced.

Fifth embodiment: improved on the basis of the previous embodiment. As shown in fig. 13, 14 and 15, the bottom plate 3 is provided with a foot hole 8 to which a foot can be attached. The effect in foot hole is, when building retaining wall, builds the ground of wall body earlier, installs retaining wall plate on the ground again, pours the concrete in the foot hole afterwards, will form the spud pile of high strength after solidifying. Of course, other rigid connectors may be driven as the anchor.

Sixth embodiment: an experimental example is exemplified on the basis of the foregoing examples to prove the excellent stability and economy of the present retaining wall panel.

1. The structure of the wall body component used in the experiment is shown in fig. 16, 17 and 18, and the wall body assembled by the wall body component is shown in fig. 19.

(1) The main parameters of the wall member are as follows:

(2) the structural mechanical parameters of the experimental wall member (as shown in fig. 20 and 21) are as follows:

weight Σ W is 52.977kN, and gravity center Σ x is 33.871 is 0.639

2. Earth pressure (for stabilizing calculation) (balance state calculation)

Soil conversion height of upper load (upper load q ═10KN/m²)

Soil pressure coefficient KA is 0.297

Wall friction angle θ is 30 °

Earth pressure (assuming height H2.00 m)

Horizontal component PH 16.64x cos30 ° -14.41 kN

Vertical component PV of 16.64x sin30 ° -8.32 kN

Position of action Y H/3- (1+ H/(H +2H))

＝2.00/3x(1+0.556/(2.00+2x 0.556))

＝0.786m

Acting torque

MO＝PH·Y＝14.41x 0.786＝11.32kN·m

3. Calculation of load (stability calculation parameter)

Horizontal component Σ H ═ 14.41kN

Straight force Σ V61.29 kN

Position of action of resultant force

Eccentricity of load

4. Equilibrium state calculation

(1) Discussion dumping

(2) Discussion of slip conditions

The inclination angle alpha of the base plate is 15 DEG

The direction of the force is reversed, resulting in negative results, so the absolute value is chosen

11.8≥Fs＝1.5……OK

(3) Supporting force

(4) Balance summary table

The seventh embodiment: improved on the basis of the previous embodiment. As shown in fig. 22, a deformation alarm 9 is arranged below the bottom plate 3. The deformation alarm can send out an alarm signal at the beginning of slippage or overturn of the wall body. Obviously, the equipment capable of realizing the purposes is various, but belongs to high-tech products, and has high manufacturing cost and difficult popularization and application. This example is intended to introduce a deformation alarm of simple structure and low cost. Referring to fig. 23, the housing of the deformation alarm 9 is a sleeve 10 which is divided into an upper sleeve 11 and a lower sleeve 12, and the upper end of the upper sleeve is connected with the bottom plate 3. In order to facilitate installation and debugging, a through hole is preferably arranged on the bottom plate, the deformation alarm is arranged below the through hole, and a gland is arranged on the deformation alarm for sealing. The upper end of the lower casing is inserted with the lower part of the upper casing in a sliding way, and preferably, the lower casing is inserted into the upper casing, and the upper casing and the lower casing are sealed by adopting high-elasticity flexible materials. A pull rod 13 is arranged in the sleeve, the upper end of which is connected to the base plate, preferably with an internal thread in the upper sleeve, which cooperates with a positioning plate 18 with an external thread. The middle of the positioning disk is provided with a through hole, and the upper end of the pull rod extends out of the through hole and is fixed by a clamping plate larger than the through hole. The upper section of the pull rod passes through the downward section of the positioning disc and is preferably provided with a hanging ring 17, and the pull rod at the lower section is hung on the hanging ring through a hook. Therefore, the height of the positioning plate can be conveniently adjusted, and the pull rod is convenient to mount. It can be seen that the lower end of the pull rod 13 extends to one side with a rod-shaped movable electrode 14. A fixed electrode 15 is arranged above the movable electrode, the lower part of the fixed electrode is connected with the base of the lower sleeve, the movable electrode and the fixed electrode are respectively provided with a lead 16, and the two leads extend out of the wall component 1 and form a circuit of the alarm with a power supply and an alarm device. Obviously, there are many types of circuits that can meet such operational requirements, and a simple circuit is illustrated in fig. 24. The switches are the movable electrode and the fixed electrode, and the bulb represents an alarm element such as sound and light.

When the deformation alarm is used, a hole is punched downwards on the foundation ground, the hole depth is lower than the ground outside the wall body, and the deformation alarm is arranged underground while the wall body member is installed. The gap between the movable electrode and the fixed electrode is adjusted to be generally about 1 mm. After the wall body is installed, the lead of the deformation alarm is connected with a power supply. When the floor is translated or swung upwards due to geological abnormal conditions, the pull rod is pulled upwards, the movable electrode touches the fixed electrode, the circuit is conducted, and the alarm device can give out signals such as sound or flash and the like to inform people of taking corresponding measures.

Therefore, the alarm device has simple structure and low cost, and the wall manufacturing cost is not greatly increased even if the device is installed on each wall member. In fact, the alarm device is installed every 50-100 meters, so that various geological disasters such as wall collapse, landslide and the like can be effectively warned.

The eighth embodiment: improved on the basis of the previous embodiment. Mainly solving the problem of the gap between the movable electrode 14 and the fixed electrode 15. Since the deformation of the wall member is small at the initial stage of the geological disaster, the gap between the movable electrode and the fixed electrode cannot be too large. However, it is difficult to achieve a small gap for a relatively simple device. Even if a small gap is set, misconnection is easy to occur, and the stability is poor. For this reason, in this example, an operation amplification device is installed between the pull rod 13 and the movable electrode 14 of the strain alarm 9. Of course, there are many devices that can achieve this function, and only a relatively simple structure will be described below.

As shown in fig. 25, a lower section of the pull rod 13 is a vertical driving rack 19, the driving rack is in transmission with a pinion 20, the pinion is coaxial with a gearwheel 21, the gearwheel is in transmission with a vertical driven rack 22, and the movable electrode 14 extends out of one side of the driven rack. When the device works, when the pull rod is pulled upwards, the driving rack goes upwards to drive the pinion to rotate, the pinion drives the large gear to rotate, the large gear drives the driven rack to go upwards, and the driven rack drives the movable electrode to move upwards. Because the pinion gear and the bull gear have a larger transmission ratio, the driving rack moves for a smaller distance, and the driven rack and the movable electrode can generate larger displacement. Therefore, the installation distance between the movable electrode and the fixed electrode can be much larger, the debugging difficulty is greatly reduced, and the stability is obviously enhanced.

Ninth embodiment: improved on the basis of the previous embodiment. The alarm problem that the wallboard deforms when the bottom plate does not deform is mainly solved. As shown in fig. 26, the upper casing 11 passes through the bottom plate 3 and is fixedly connected with the wall plate 2 through the buttress 4. The structure has the advantages that the structure and the performance of each component below the bottom plate are not reduced, and the alarm function can be realized when the bottom plate is deformed. When the bottom plate is not deformed and only the wall plate is deformed, the pull rod can be pulled to achieve the purpose of alarming.

In addition, in order to further improve the working performance, the following improvements may be made:

since the sleeve extends upwards, the original sleeve is slightly bent through a section of the positioning plate, and in order to reduce the friction resistance, the upper port of the middle hole of the positioning plate is required to be a round angle as shown in fig. 27.

Because the sleeves above and below the base plate are in communication, both wires can pass through the sleeves as shown in fig. 28. Therefore, the working environment of the lead is better, and the lead is not easy to break down. Meanwhile, a special insulating pipeline can be omitted, and the manufacturing cost is further reduced.

Since the probability of occurrence of a geological disaster is extremely low, the apparatus may need to be buried underground for a long period of time. Therefore, the sealing level of the structure is required to be high. In addition to using a good pipe material and a good sealing measure for the joint, as shown in fig. 28, insulating oil may be filled in the lower casing, i.e., around the movable electrode and the fixed electrode. Therefore, moisture resistance and arc extinction can be realized, mistaken connection is prevented, and the working environment of the key component is kept for a long time, so that the stability and the reliability of the working performance of the device are ensured.

Claims

1. The utility model provides a civil engineering shielding engineering wall body component, wall body component (1) is equipped with bottom plate (3), its characterized in that below wallboard (2) including wallboard (2) of erectting: and an included angle alpha between the wall plate (2) and the bottom plate (3) is an obtuse angle.

2. The civil shielding project wall member of claim 1, wherein: the wallboard (2) and the bottom plate (3) are integrally prefabricated parts fixedly connected with each other, and an included angle alpha between the wallboard (2) and the bottom plate (3) is 100-110 degrees.

3. The civil shielding project wall member of claim 2, wherein: and an included angle alpha between the wall plate (2) and the bottom plate (3) is 105 degrees.

4. The civil shielding project wall member of claim 1, wherein: a buttress (4) is arranged between the wallboard (2) and the bottom plate (3).

5. The civil shielding project wall member of claim 1, wherein: and grooves (5) or grooves (5) and tenons (7) which are matched with each other are arranged on two side edges of the wallboard (2).

6. The civil shielding project wall member of claim 1, wherein: and drain holes (6) are formed in the side edge of the wallboard (2).

7. The civil shielding project wall member of claim 1, wherein: the width of the outer end of the bottom plate (3) is smaller than that of the inner side.

8. The civil shielding project wall member of claim 1, wherein: and a ground foot hole (8) capable of being provided with a ground foot is arranged on the bottom plate (3).

9. The civil shielding project wall member of claim 1, wherein: and a deformation alarm (9) is arranged below the bottom plate (3).

10. The civil shielding project wall member of claim 9, wherein: the shell of deformation alarm (9) is a sleeve pipe (10), and sleeve pipe (10) divide into sleeve pipe (11) and lower casing (12), go up the sleeve pipe upper end with bottom plate (3) link to each other, and the upper end of lower casing is pegged graft with the slip of upper casing lower part, is equipped with flexible seal between, and the intraductal pull rod (13) that is equipped with of cover, and the upper end of pull rod is connected with the bottom plate, and rod-like movable electrode (14) are stretched out to one side in the pull rod lower part, and the top of movable electrode is equipped with stationary electrode (15), and the below of stationary electrode links to each other with the base of lower casing, and wire (16) are equipped with respectively to movable electrode and stationary electrode, and two leads stretch out wall body component (1) just constitute with power and alarm device the circuit of deformation alarm.

11. The civil shielding project wall member of claim 10, wherein: and an action amplifying device is arranged between the pull rod (13) of the deformation alarm (9) and the movable electrode (14).

12. The civil shielding project wall member of claim 11, wherein: the action amplifying device between the pull rod (13) and the movable electrode (14) is as follows: one section of the lower part of the pull rod (13) is provided with a vertical driving rack (19), the driving rack is in transmission with a pinion (20), the pinion is coaxial with a gearwheel (21), the gearwheel is in transmission with a vertical driven rack (22), and the movable electrode (14) is arranged on one side of the driven rack.

13. A civil shielding engineering wall element according to claim 4 or 9 or 10 or 11 or 12, characterised in that: the upper sleeve (11) and the pull rod (13) penetrate through the bottom plate (3) and are connected with the wallboard (2) through the buttress (4) upwards.