阅读说明：本技术 一种测量结构面起伏形态的注塑成型模具及方法 (Injection molding mold and method for measuring structural surface fluctuation form ) 是由 陈冲 邬爱清 张宜虎 范雷 罗荣 胡伟 于 2020-06-05 设计创作，主要内容包括：本发明提供一种测量结构面起伏形态的注塑成型模具及方法,该成型模具包括锚固在工程岩体内的固定支杆、将工程岩体待测量起伏形态的表面罩住的框型件、设于框型件且用于向框型件内注入注塑材料的连通管、用于密封框型件底部与工程岩体之间间隙的密封垫座、以及一端转动设于固定支杆、另一端与框型件接触的反力臂杆和限位臂杆,反力臂杆与框型件的顶面接触,限位臂杆与框型件的侧面接触,反力臂杆和所述限位臂杆用于将所述框型件挤压固定于工程岩体待测量起伏形态的表面,注塑材料由连通管注入框型件内凝固后即含结构面起伏信息。本发明不受工程现场条件制约,可在现场制作含结构面起伏信息的成型塑件,可利用注塑材料表征结构面起伏形态的信息。(The invention provides an injection molding mold and a method for measuring the fluctuation form of a structural surface, wherein the molding mold comprises a fixed support rod anchored in an engineering rock body, a frame-shaped piece covering the surface of the engineering rock body to be measured in the fluctuation form, a communicating pipe arranged on the frame-shaped piece and used for injecting injection molding materials into the frame-shaped piece, a sealing pad seat used for sealing a gap between the bottom of the frame-shaped piece and the engineering rock body, a reaction arm rod and a limiting arm rod, one end of the reaction arm rod is rotatably arranged on the fixed support rod, the other end of the reaction arm rod is in contact with the top surface of the frame-shaped piece, the limiting arm rod is in contact with the side surface of the frame-shaped piece, the reaction arm rod and the limiting arm rod are used for extruding and fixing the frame-shaped piece on the surface of the engineering rock body to be measured in the fluctuation form, and the injection. The invention is not limited by engineering site conditions, can manufacture a molded plastic part containing structural surface fluctuation information on site, and can use injection molding materials to represent the information of the structural surface fluctuation form.)

1. The utility model provides a measure injection moulding mould of structural plane undulation form which characterized in that: comprises a fixed support rod (1) anchored in an engineering rock body (8), a frame piece covering the surface of the engineering rock body (8) to be measured in a fluctuating form, a communicating pipe (7) arranged on the frame piece and used for injecting injection molding materials into the frame piece, a sealing pad seat (6) used for sealing a gap between the bottom of the frame piece and the engineering rock body (8), a counter-force arm rod (2) and a limiting arm rod (3) of which one end is rotatably arranged on the fixed support rod (8) and the other end is contacted with the frame piece, the reaction arm lever (2) is contacted with the top surface of the frame-shaped piece, the limit arm lever (3) is contacted with the side surface of the frame-shaped piece, the reaction arm rod (2) and the limiting arm rod (3) are used for fixing the frame-shaped part on the surface of an engineering rock mass (8) in an extrusion manner, wherein the surface of the engineering rock mass is to be measured in a fluctuating form, and the injection molding material is injected into the frame-shaped part through a communicating pipe (7) and is solidified to contain structural surface fluctuation information.

2. An injection mold for measuring the relief profile of a structural surface as defined in claim 1, wherein: frame type spare includes four rectangle boards (5) and a square board (4), and four rectangle boards (5) perpendicular to engineering rock mass (8) are to be measured the surface and are arranged, and enclose and establish into the frame type spare that a open-top is sealed by a square board (4), the frame type spare constitutes the confined space of the material of moulding plastics with engineering rock mass (8) to be measured's surface jointly.

3. An injection mold for measuring the relief profile of a structural surface as defined in claim 2, wherein: reaction armed lever (2) and spacing armed lever (3) all are equipped with the annular shell, and reaction armed lever (2) and spacing armed lever (3) are in fixed branch (1) through the annular shell centre gripping, and reaction armed lever (2) and square board (4) contact, and spacing armed lever (3) are connected with rectangular board (5).

4. An injection mold for measuring the relief profile of a structural surface as defined in claim 2, wherein: fixed branch (1) have four, locate the frame type spare outside separately, and in the engineering rock mass (8) was buried to the one end of fixed branch (1), the other end was located the outside empty face that faces of engineering rock mass (8) for installation, fixed reaction armed lever (2) and spacing armed lever (3) provide the support counter-force simultaneously.

5. An injection mold for measuring the relief of a structural surface as defined in claim 3, wherein: reaction armed lever (2) correspond four fixed branch (1) and are provided with four, the one end of reaction armed lever (2) is equipped with disc (2e), the other end is "7" font long round bar (2f), the one end and the square plate (4) contact of disc (2e), be equipped with annular shell (2g) of centre gripping fixed branch (1) on long round bar (2f), annular shell (2g) adopt bolt (2h) fastening, annular shell (2g) of reaction armed lever (2) can be round fixed branch (1) axial rotation.

6. An injection mold for measuring the relief of a structural surface as defined in claim 3, wherein: spacing armed lever (3) correspond four rectangle boards (5) and are equipped with four, spacing armed lever (3) include rotor arm (3e) and with rotor arm (3e) one end articulated dead lever (3f), the end that rotor arm (3e) are connected with rectangle board (5) is equipped with bolt hole (3h), another end of rotor arm (3e) is connected through bolt (3i) with dead lever (3f), be equipped with annular shell (3g) that are used for centre gripping fixed branch (1) on dead lever (3f), bolt (3j) fastening is adopted in annular shell (3g), annular shell (3g) of spacing armed lever (3) can be round fixed branch (1) axial rotation, rotor arm (3e) can round dead lever (3f) plane rotation.

7. An injection mold for measuring the relief profile of a structural surface as defined in claim 2, wherein: the square plate (4) is provided with bolts (4a, 4b, 4c and 4d)) all around, the four rectangular plates (5) are correspondingly provided with bolt holes (5i), and the four bolts are used for being inserted into the bolt holes (5i) of the four rectangular plates (5) to connect and fix the square plate (4) and the rectangular plates (5).

8. An injection mold for measuring the relief profile of a structural surface as defined in claim 2, wherein: both ends on long limit of rectangular plate (5) are equipped with respectively and just detain (5e) and female knot (5f) of ending, and two adjacent rectangular plate (5) adopt bolt (5g) to connect fixedly.

9. An injection mold for measuring the relief profile of a structural surface as defined in claim 6, wherein: rectangular plate (5) middle part is equipped with recess (5h), is equipped with bolt (5j) on recess (5h), and bolt (5j) pass bolt hole (3h), recess (5h) lower lateral wall of lateral wall, spacing armed lever (3) rotor arm (3e) on recess (5h) in proper order, connect spacing armed lever (3) and rectangular plate (5) through bolt (5 j).

10. An injection molding method for measuring the relief form of a structural surface is characterized in that: using the forming tool of any of claims 1-9, the method comprising the steps of:

step one, mounting a fixed support rod (1): drilling a hole at a point to be measured in an engineering rock body (8) and installing a fixing support rod (1), wherein the first step is specifically as follows:

selecting the position of a structural surface to be measured on the surface of an engineering rock mass (8), measuring the positions of four fixing support rods (1) on the periphery of a mold by using a measuring tape, marking by using a marking pen, drilling a certain depth at a marking point by using drilling equipment, washing the marking point, removing accumulated water in a hole by using compressed air, slowly feeding an anchoring agent into the bottom of the hole by using a rod body of the fixing support rods (1), then rotating the rod body to push the anchoring agent to the bottom of the hole at a constant speed, wedging the rod body in time, and waiting for the anchoring agent to be completely solidified;

step two, the rectangular plate (5) and the limiting arm rod (3) are installed: place sealing pad seat (6) in the middle of four fixed branch (1) at first, then install rectangular board (5) and spacing armed lever (3) in proper order, step two specifically as follows:

step 201, mounting a rectangular plate (5): placing a first rectangular plate (5a) in a base (6b) between an outer side wall (6a) and an inner side wall (6c) of a sealing gasket seat (6);

step 202, installing a limiting arm lever (3): sleeving a first limiting arm rod (3a) annular shell (3g) from the outer end head of the first fixed support rod (1a), and moving the annular shell (3g) until a rotating arm (3e) and a groove (5h) of the first rectangular plate (5a) are at the same elevation; simultaneously rotating a rotating arm (3e) and a fixed rod (3f) of a first limiting arm rod (3a) until a bolt hole (3h) of the rotating arm (3e) is located in the middle of a groove (5h) of a rectangular plate (5), connecting the limiting arm rod (3) and the rectangular plate (5) through a first bolt (5j), fastening the rotating arm (3e) and the fixed rod (3f) of the first limiting arm rod through a second bolt (3i), and fastening an annular shell (3g) of the first limiting arm rod through a third bolt (3 j);

step 203: repeating the steps 201 and 202 for multiple times until the four limiting arm rods (3) and the four rectangular plates (5) are installed, and respectively connecting the four rectangular plates (5) by four fourth bolts (5 g);

step three, mounting the square plate (4) and the reaction arm lever (2): install square board (4) earlier to be connected fixedly with rectangular shaped plate (5), then install counter-force armed lever (2), step three specifically is:

placing a square plate (4) on the outer sides of the four rectangular plates (5), adjusting the position of the square plate (4), and enabling four fifth bolts (4a, 4b, 4c and 4d) to be respectively inserted into bolt holes (5i) of the first rectangular plate (5a), the second rectangular plate (5b), the third rectangular plate (5c) and the fourth rectangular plate (5d), so that the square plate (4) and the four rectangular plates (5) are fixed;

sleeving an annular shell (2g) of the first reaction arm rod (2a) from the outer end of the first fixing support rod (1a), moving and rotating a round rod (2f) until a disc (2e) is contacted with a square plate (4), and fastening the annular shell (2g) by adopting a sixth bolt (2h) so as to fix the first reaction arm rod (2 a); a second reaction arm lever (2b), a third reaction arm lever (2c) and a fourth reaction arm lever (2d) are sequentially installed and fixed;

step four, injecting injection molding material into the mold

Injecting injection molding materials into the grout inlet pipe (7a), exhausting air in the mold through the air outlet pipe (7b) until the mold is filled with the injection molding materials, then sealing the grout inlet pipe (7a) and the air outlet pipe (7b), and waiting for the injection molding materials to be completely solidified;

step five, disassembling the mould and taking out the injection molding material

Unscrewing a sixth bolt (2h), and sequentially removing a first reaction arm lever (2a), a second reaction arm lever (2b), a third reaction arm lever (2c) and a fourth reaction arm lever (2d) from the first fixed support rod (1a), the second fixed support rod (1b), the third fixed support rod (1c) and the fourth fixed support rod (1 d);

unscrewing a first bolt (5j), a second bolt (3i) and a third bolt (3j), and sequentially removing a first limiting arm rod (3a), a second limiting arm rod (3b), a third limiting arm rod (3c) and a fourth limiting arm rod (3d) from a first fixed supporting rod (1a), a second fixed supporting rod (1b), a third fixed supporting rod (1c) and a fourth fixed supporting rod (1 d);

square board (4), rectangular board (5), sealing pad seat (6) and the material of moulding plastics are wholly taken off, place on horizontal plank, take off sealing pad seat (6), unscrew fifth bolt (4a, 4b, 4c, 4d), square board (4) are taken off, unscrew fourth bolt (5g) of connecting adjacent rectangular board (5), take off first rectangular board (5a), second rectangular board (5b), third rectangular board (5c) and fourth rectangular board (5d) in proper order, the material of moulding plastics that contains structural plane undulation form just successfully takes out.

Technical Field

The invention relates to the technical field of geotechnical engineering, in particular to an injection molding die and method for measuring the fluctuation form of a structural surface.

Background

The engineering rock mass consists of rocks and a structural plane, and the rock mass structure type controlled by the structural plane is an important factor influencing the stability of the rock mass under the action of engineering load. Long-term research on rock mass structural planes shows that the topographic features of fluctuation, roughness and the like are one of important factors influencing the mechanical parameters of the rock mass structural planes. The relief information of the structural surface is acquired by a three-dimensional scanning technique, which projects additional energy (e.g., visible light) to the object and calculates three-dimensional spatial information by reflection of the energy. The light of the indoor laboratory is good, the control is convenient, and the three-dimensional shape scanner is precious and has high precision. In the indoor experiment, the rock mass is mostly used as a sample, but the volume is small, and the property of the engineering rock mass is difficult to reflect.

Disclosure of Invention

The invention aims to provide an injection molding mold and method for measuring the structural surface fluctuation form, which can be used as an effective and reliable means for measuring the engineering rock structural surface fluctuation form on site.

The utility model provides a measure injection moulding mould of structural plane undulation form, includes the fixed stay of anchor in the engineering rock body, with the engineering rock body measure the frame type spare that the surface of undulation form was covered, locate frame type spare and be used for pouring into injection moulding material's communicating pipe in the frame type spare, be used for the sealed base of packing in clearance between sealed frame type spare bottom and the engineering rock body and one end rotate locate fixed stay, the other end and the counter-force armed lever and the spacing armed lever of frame type spare contact, the top surface contact of counter-force armed lever and frame type spare, the side contact of spacing armed lever and frame type spare, the counter-force armed lever with spacing armed lever is used for with frame type spare extrusion is fixed in the engineering rock body measure the surface of undulation form, and injection moulding material contains structural plane undulation information promptly after pouring into frame type spare by communicating pipe and solidifying.

Further, frame type spare includes four rectangular plates and a square board, and four rectangular plates perpendicular to engineering rock mass are to be measured the surface and are arranged, and enclose and establish into a top opening and by the sealed frame type spare of a square board, frame type spare and the engineering rock mass are to be measured the surface and constitute the confined space of moulding plastics material jointly.

Further, reaction armed lever and spacing armed lever all are equipped with the annular shell, and reaction armed lever and spacing armed lever pass through the annular shell centre gripping in fixed branch, and reaction armed lever and square plate contact, spacing armed lever and rectangular shape connection.

Further, fixed branch is total four, locates the frame type spare outside, and during the one end of fixed branch buried engineering rock mass, the other end was located the outside empty face that faces of engineering rock mass for installation, fixed reaction armed lever and spacing armed lever provide the support counter-force simultaneously.

Furthermore, the reaction arm rod is provided with four corresponding to the four fixed supporting rods, one end of the reaction arm rod is provided with a disc, the other end of the reaction arm rod is a 7-shaped long round rod, one end of the disc is in contact with the square plate, the long round rod is provided with an annular shell for clamping the fixed supporting rods, the annular shell is fastened by bolts, and the annular shell of the reaction arm rod can rotate around the fixed supporting rods in the axial direction.

Further, spacing armed lever corresponds four rectangular boards and is equipped with four, spacing armed lever include the rotor arm and with rotor arm one end articulated dead lever, the end that the rotor arm is connected with rectangular board is equipped with the bolt hole, another end of rotor arm passes through bolted connection with the dead lever, be equipped with the annular shell that is used for centre gripping fixed branch on the dead lever, the annular shell adopts the bolt-up, the annular shell of spacing armed lever can be round fixed branch axial rotation, the rotor arm can be round the rotation of dead lever plane.

Further, the square plate is equipped with the bolt all around), four rectangular boards correspond and are equipped with the bolt hole, and four bolts are arranged in inserting the bolt hole of four rectangular boards with connection fixed square plate and rectangular board.

Furthermore, both ends on the long side of each rectangular plate are respectively provided with a male stop buckle and a female stop buckle, and two adjacent rectangular plates are fixedly connected through bolts.

Furthermore, a groove is formed in the middle of the rectangular plate, a bolt is arranged on the groove, the bolt sequentially penetrates through the upper side wall of the groove, the bolt hole of the limiting arm lever rotating arm and the lower side wall of the groove, and the limiting arm lever and the rectangular plate are connected through the bolt.

An injection molding method for measuring the relief form of a structural surface is carried out by adopting the molding die, and the method comprises the following steps:

step one, mounting a fixed support rod: drilling a hole at a point to be measured of an engineering rock mass and installing a fixed supporting rod, wherein the first step specifically comprises the following steps:

selecting the position of a structural surface to be measured on the surface of an engineering rock mass, measuring the positions of four fixing support rods on the periphery of a mold by using a measuring tape, marking by using a marking pen, drilling at a certain depth by using drilling equipment, washing, removing accumulated water in holes by using compressed air, slowly feeding an anchoring agent into the hole bottom by using a rod body of the fixing support rods, then rotating the rod body to push the anchoring agent to the hole bottom at a constant speed, wedging the rod body in time, and waiting for the anchoring agent to be completely solidified;

step two, the rectangular plate and the limiting arm rod are installed: place the sealing pad seat in the middle of four fixed branch at first, then install rectangular shaped plate and spacing armed lever in proper order, step two specifically as follows:

step 201, mounting a rectangular plate: placing a first rectangular plate in the base between the outer side wall and the inner side wall of the sealing pad seat;

step 202, installing a limiting arm lever: sleeving a first limiting arm rod annular shell from the outer end head of the first fixed support rod, and moving the annular shell until the rotating arm and the first rectangular plate groove are at the same elevation; simultaneously rotating the rotating arm and the fixed rod of the first limiting arm rod until the bolt hole of the rotating arm is positioned in the middle of the groove of the rectangular plate, connecting the limiting arm rod and the rectangular plate through a first bolt, fastening the rotating arm and the fixed rod of the first limiting arm rod through a second bolt, and fastening the annular shell of the first limiting arm rod through a third bolt;

step 203: repeating the steps 201 and 202 for multiple times until the four limiting arm rods and the four rectangular plates are installed, and respectively connecting the four rectangular plates by four fourth bolts;

step three, mounting a square plate and a counter-force arm lever: install square board earlier to be connected fixedly with rectangular shaped plate, then install the counter-force armed lever, step three specifically is:

placing a square plate on the outer sides of the four rectangular plates, and adjusting the position of the square plate to enable four fifth bolts to be respectively inserted into bolt holes of the first rectangular plate, the second rectangular plate, the third rectangular plate and the fourth rectangular plate, so that the square plate and the four rectangular plates are fixed;

sleeving the annular shell of the first reaction arm rod from the outer end of the first fixing support rod, moving and rotating the round rod until the round plate is contacted with the square plate, and fastening the annular shell by adopting a sixth bolt so as to fix the first reaction arm rod; a second reaction arm lever, a third reaction arm lever and a fourth reaction arm lever are sequentially installed and fixed;

step four, injecting injection molding material into the mold

Injecting a plastic injection material into the slurry inlet pipe, exhausting air in the mold through the air outlet pipe until the mold is filled with the plastic injection material, and then sealing the slurry inlet pipe and the air outlet pipe to wait for the plastic injection material to be completely solidified;

step five, disassembling the mould and taking out the injection molding material

Loosening the sixth bolt, and sequentially removing the first reaction arm lever, the second reaction arm lever, the third reaction arm lever and the fourth reaction arm lever from the first fixed supporting rod, the second fixed supporting rod, the third fixed supporting rod and the fourth fixed supporting rod;

unscrewing the first bolt, the second bolt and the third bolt, and sequentially taking down the first limiting arm rod, the second limiting arm rod, the third limiting arm rod and the fourth limiting arm rod from the first fixing support rod, the second fixing support rod, the third fixing support rod and the fourth fixing support rod;

the square plate, the rectangular plate, the sealing pad seat and the injection molding material are integrally taken down, the sealing pad seat is placed on the horizontal wood board, the fifth bolt is unscrewed, the square plate is taken down, the fourth bolt for connecting the adjacent rectangular plates is unscrewed, the first rectangular plate, the second rectangular plate, the third rectangular plate and the fourth rectangular plate are sequentially taken down, and the injection molding material containing the structural surface fluctuation form is successfully taken out.

The invention achieves the following beneficial effects:

(1) according to the invention, the square plate and the four rectangular plates form five smooth and orderly boundaries of the injection molding material, the sixth boundary is the surface of the engineering rock mass with the structural surface fluctuation form to be measured, so that a closed space of a mold is formed, and the sixth boundary represents the structural surface fluctuation form information after the injection molding material is solidified, so that the injection molding material has a simple structure and high effectiveness;

(2) the invention adopts the limit arm rod to clamp and fix the square plate and the rectangular plate on the surface of the engineering rock with the structural surface to be measured in a fluctuating mode, adopts the counter-force arm rod to extrude the square plate, and transmits extrusion force to the sealing pad seat through the rectangular plate, thereby reducing the gap between the mold and the engineering rock body, and having reasonable structure and stronger reliability;

(3) according to the invention, the adjacent rectangular plates are connected by the seam allowance and the bolt, the square plates and the rectangular plates are connected by the bolt, and are connected into a whole after assembly is finished, the sealing pad seat increases the sealing property between the mold and an engineering rock mass, the mold is easy to disassemble after injection molding, the molded plastic part is not easy to damage, and the practicability is strong;

(4) the thermoplastic material injection molding of the invention has short molding cycle, high production efficiency, small abrasion of the melting material to the mold, and can mold plastic parts with complex shapes, clear surface patterns, high dimensional accuracy and structural surface fluctuation forms in large batch;

(5) the injection molding die and the injection molding method are not limited by engineering site conditions, can be used repeatedly, have low comprehensive cost, can fully utilize an indoor high-precision three-dimensional scanner to acquire structural surface fluctuation form information on a molded plastic piece after the molded plastic piece manufactured on site is transported to an indoor laboratory, indirectly estimate structural surface shear strength parameters, and can be used as a reference surface to pour upper and lower similar material rock test pieces so as to directly test the structural surface shear strength parameters, thereby achieving the effect of mutual verification and ensuring that the structural surface shear strength parameters are more reliable.

Drawings

FIG. 1 is a side sectional view of an injection mold for measuring the relief shape of a structural surface according to the present invention;

FIG. 2 is a schematic view of the lever connection of the rectangular plate and the spacing arm of the present invention;

FIG. 3 is a schematic view of the connection of the square plate and the reaction arm according to the present invention;

FIG. 4 is a front view of a rectangular panel of the present invention;

FIG. 5 is a front view of the square plate of the present invention;

FIG. 6 is a front view of the gasket seat of the present invention;

FIG. 7(a) is a plan view of a reaction arm according to the present invention, and FIG. 7(b) is a perspective view of the reaction arm according to the present invention;

fig. 8(a) is a plan view of the arm lever for restricting the present invention, and fig. 8(b) is a perspective view of the arm lever for restricting the present invention.

The reference numerals in the figures are as follows:

1-fixing the supporting rod; 1 a-a first fixed strut; 1 b-a second fixed strut; 1 c-a third fixed strut; 1 d-a fourth fixed strut;

2-a counter-force arm lever; 2 a-a first counter-force arm; 2 b-a second counter-force arm; 2 c-a third counter-force arm; 2 d-a fourth counter-force arm; 2 e-disc; 2 f-round bar; 2 g-annular shell; 2h, bolt;

3-limiting arm lever; 3 a-a first limit arm lever; 3 b-a second limit arm lever; 3 c-a third limit arm lever; 3 d-a fourth limit arm lever; 3 e-a rotor arm; 3 f-fixing the rod; 3 g-annular shell; bolt holes are drilled for 3 h; 3 i-bolt; 3 j-bolt;

4-square plate; 4a, 4b, 4c, 4 d-bolt;

5, a rectangular plate; 5 a-a first rectangular plate; 5 b-a second rectangular plate; 5 c-a third rectangular plate; 5 d-a fourth rectangular plate; 5 e-male stop buckle; 5f, female stop buckle; 5 g-bolt; 5h, forming a concave groove; 5 i-bolt hole; 5 j-bolt;

6-sealing cushion seat; 6 a-outer side wall; 6 b-a base; 6 c-inner sidewall;

7-communicating pipe; 7 a-a pulp inlet pipe; 7 b-an air outlet pipe;

8-engineering rock mass.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the invention provides an injection mold for measuring structural surface relief, including a fixed support rod 1, a reaction arm rod 2, a limiting arm rod 3, a square plate 4, a rectangular plate 5, a sealing pad seat 6, and a communicating pipe 7.

The four rectangular plates 5 are perpendicular to the surface of the engineering rock body 8 to be measured and are arranged, a frame piece with a top opening sealed by a square plate 4 is arranged in an enclosing mode, the frame piece and the surface of the engineering rock body 8 to be measured jointly form a closed space of an injection molding material, the injection molding material can be injected into the frame piece through a communicating pipe 7, and the injection molding material contains structural surface fluctuation information after being solidified.

Fixed branch 1 anchor is in engineering rock mass 8, and reaction armed lever 2 and spacing armed lever 3 all are equipped with the annular shell, and reaction armed lever 2 and spacing armed lever 3 pass through the annular shell centre gripping in fixed branch 1, and reaction armed lever 2 contacts with square plate 4, and spacing armed lever 3 is connected with rectangular plate 5.

As shown in fig. 2, the fixing strut 1 includes a first fixing strut 1a, a second fixing strut 1b, a third fixing strut 1c, and a fourth fixing strut 1d respectively disposed at the outer side of the frame member. Fixed branch 1 is circular rigid rod, and during engineering rock mass 8 was buried to one end, the other end was located 8 outside empty faces of facing of engineering rock mass for installation, fixed reaction armed lever 2 and spacing armed lever 3 provide the support counter-force simultaneously.

As shown in fig. 3, the reaction force arm 2 includes a first reaction force arm 2a, a second reaction force arm 2b, a third reaction force arm 2c, and a fourth reaction force arm 2d provided corresponding to the four fixed poles. One end of the counter-force arm rod 2 is provided with a disc 2e, the other end is a 7-shaped long round rod 2f, one end of the disc 2e is in contact with the square plate 4, the long round rod 2f is provided with an annular shell 2g for clamping the fixed supporting rod 1, and the annular shell 2g is fastened by a bolt 2h (as shown in fig. 7 (a)). The annular shell 2g of the reaction arm lever 2 can rotate around the axial direction of the fixed support rod 1, so that the disc 2e is positioned in the middle of the square plate 4, and the square plate 4 and the rectangular plate 5 are extruded and fixed on the surface of the engineering rock mass 8.

As shown in fig. 2, the limiting arm 3 includes a first limiting arm 3a, a second limiting arm 3b, a third limiting arm 3c, and a fourth limiting arm 3d, which are disposed corresponding to the four rectangular plates 5. Referring to fig. 8(a) and 8(b), the limiting arm 3 includes a rotating arm 3e and a fixing rod 3f hinged to one end of the rotating arm 3e, a bolt hole 3h is formed in an end of the rotating arm 3e connected to the rectangular plate 5, the other end of the rotating arm 3e is connected to the fixing rod 3f through a bolt 3i, an annular shell 3g for clamping the fixing rod 1 is arranged on the fixing rod 3f, and the annular shell 3g is fastened by a bolt 3 j. Annular shell 3g of spacing armed lever 3 can be round 1 axial rotation of fixed branch, and rotor arm 3e can be round 3f planar rotation of dead lever to bolt hole 3h is located 5 recess 5h middle parts of rectangular board, connects spacing armed lever 3 and rectangular board 5 through bolt 5 j. In the installation process of each rectangular plate 5, the corresponding limiting arm rod 3 is clamped and fixed on the surface of the engineering rock mass 8 to be measured structural surface fluctuation form by adjusting the shape of the corresponding limiting arm rod.

As shown in fig. 5, a bolt (4a, 4b, 4c, 4d) is respectively arranged around the square plate 4, bolt holes 5i are arranged at the same positions of the rectangular plate 5 and the four bolts around the square plate 4, and the four bolts (4a, 4b, 4c, 4d) are inserted into the bolt holes 5i of the four rectangular plates 5 to connect and fix the square plate 4 and the rectangular plate 5. The four rectangular plates 5 and the square plates 4 form five smooth and orderly boundaries of the injection molding material, and the other boundary is the surface of the engineering rock mass 8 with the structural surface to be measured in the fluctuating form.

As shown in fig. 4, the rectangular plate 5 is divided into a first rectangular plate 5a, a second rectangular plate 5b, a third rectangular plate 5c, and a fourth rectangular plate 5 d. The both ends on rectangular plate 5 long limit are respectively for public knot 5e and female knot 5f that ends, and two adjacent rectangular plate 5 adopt bolt 5g to connect fixedly. Through adopting the connection mode of only detaining, rectangular plate 5's installation, dismantlement are convenient, have also guaranteed the leakproofness of mould simultaneously.

The middle of the rectangular plate 5 is provided with a groove 5h, the groove 5h is provided with a bolt 5j, the bolt 5j sequentially penetrates through the upper side wall of the groove 5h, the bolt hole 3h of the rotating arm 3e of the limiting arm rod 3 and the lower side wall of the groove 5h, and the groove 5h is a part for connecting the rectangular plate 5 with the limiting arm rod 3.

As shown in fig. 6, the gasket seat 6 is designed as a square frame, and a section along the square frame is designed as a concave shape, respectively as an outer side wall 6a, a base 6b and an inner side wall 6c, and the rectangular plate 5 is installed in the base 6 b. The sealing pad seat 6 is made of rubber materials and used for sealing a gap between the rectangular plate 5 and the engineering rock mass 8.

The communicating pipe 7 is positioned on the first rectangular plate 5a and is divided into a slurry inlet pipe 7a and an air outlet pipe 7b, the slurry inlet pipe 7a is a passage for injection molding materials to enter a mold, and the air outlet pipe 7b is a passage for air in the mold to be discharged. The injection molding material is a thermoplastic material such as plastic.

The engineering rock mass 8 can be a slope surface rock mass and can also be an underground cavern surrounding rock.

The embodiment of the invention also provides an injection molding method for measuring the structural surface fluctuation form, which is carried out by adopting the molding die, and the method comprises the following steps:

step one, mounting a fixed support rod 1: and drilling a hole at a point to be measured of the engineering rock mass 8 and installing the fixing support rod 1.

And (3) selecting the position of the structural plane to be measured on the surface of the engineering rock mass 8, measuring the positions of the four fixing support rods 1 on the periphery of the mold by using tape gauges, and marking by using a marker pen. And drilling at the mark point by using drilling equipment to a certain depth, washing the mark point, and removing accumulated water in the hole by using compressed air. The anchoring agent is slowly fed into the bottom of the hole by utilizing the rod body of the fixed support rod 1, then the rod body is rotated to push the anchoring agent to the bottom of the hole at a constant speed, the rod body is wedged in time, and the anchoring agent is waited to be completely solidified, so that the anchoring quality is ensured.

Step two, the rectangular plate 5 and the limiting arm rod 3 are installed: firstly, the sealing pad seat 6 is placed in the middle of the four fixed supporting rods 1, and then the rectangular plate 5 and the limiting arm rod 3 are sequentially installed. The second step is as follows:

step 201, mounting the rectangular plate 5: a first rectangular plate 5a is placed in the seat 6b intermediate the outer side wall 6a and the inner side wall 6c of the gasket seat 6.

Step 202, installing a limiting arm rod 3: sleeving a first limiting arm rod 3a annular shell 3g from the outer end of the first fixed support rod 1a, and moving the annular shell 3g until the rotating arm 3e and the groove 5h of the first rectangular plate 5a are at the same elevation; simultaneously rotating a rotating arm 3e and a fixed rod 3f of a first limiting arm rod 3a until a bolt hole 3h of the rotating arm 3e is positioned in the middle of a groove 5h of a rectangular plate 5, connecting the limiting arm rod 3 and the rectangular plate 5 through a bolt 5j, fastening the rotating arm 3e and the fixed rod 3f of the first limiting arm rod through a bolt 3i, and fastening an annular shell 3g of the first limiting arm rod through a bolt 3 j;

step 203: and (3) repeating the steps 201 and 202 for a plurality of times until the four limiting arm rods 3 and the four rectangular plates 5 are installed, and respectively connecting the four rectangular plates (5) by adopting four bolts (5 g).

Step three, mounting the square plate 4 and the counterforce arm rod 2: the square plate 4 is installed firstly and is connected and fixed with the rectangular plate 5, and then the counter-force arm lever 2 is installed.

Placing the square plate 4 on the outer sides of the four rectangular plates 5, adjusting the positions of the square plate 4 to enable four bolts (4a, 4b, 4c and 4d) to be respectively inserted into bolt holes 5i of the first rectangular plate 5a, the second rectangular plate 5b, the third rectangular plate 5c and the fourth rectangular plate 5d, and fixing the square plate 4 and the four rectangular plates 5 by adopting bolts;

sleeving an annular shell 2g of the first reaction arm rod 2a from the outer end of the first fixing support rod 1a, moving and rotating a round rod 2f until a disc 2e is in contact with a square plate 4, and fastening the annular shell 2g by using a bolt 2h so as to fix the first reaction arm rod 2 a; a second reaction arm 2b, a third reaction arm 2c, and a fourth reaction arm 2d are mounted and fixed in this order.

Injecting an injection molding material into the mold:

and injecting injection molding materials into the grout inlet pipe 7a, exhausting air in the mold through the air outlet pipe 7b until the mold is filled with the injection molding materials, and then closing the grout inlet pipe 7a and the air outlet pipe 7b to wait for the injection molding materials to be completely solidified.

Step five, disassembling the mold and taking out the injection molding material:

the bolt 2h is loosened, and the first reaction arm lever 2a, the second reaction arm lever 2b, the third reaction arm lever 2c, and the fourth reaction arm lever 2d are taken down from the first fixed support rod 1a, the second fixed support rod 1b, the third fixed support rod 1c, and the fourth fixed support rod 1d in sequence.

The bolts 5j, 3i and 3j are unscrewed, and the first limiting arm rod 3a, the second limiting arm rod 3b, the third limiting arm rod 3c and the fourth limiting arm rod 3d are sequentially taken down from the first fixing support rod 1a, the second fixing support rod 1b, the third fixing support rod 1c and the fourth fixing support rod 1 d.

The square board 4, rectangular board 5, sealing pad seat 6 and the material of moulding plastics are taken off wholly, place on horizontal plank, take off sealing pad seat 6, unscrew bolt (4a, 4b, 4c, 4d), take off square board 4, unscrew bolt 5g, take off first rectangular board 5a, second rectangular board 5b, third rectangular board 5c and fourth rectangular board 5d in proper order, and the material of moulding plastics that contains structural plane undulation form just successfully takes out.

Step six, measuring the relief shape of the injection molding material:

and (3) conveying the injection molding material containing the structural surface fluctuation form into a room, performing three-dimensional scanning on the structural surface fluctuation degree on a three-dimensional appearance instrument, evaluating the three-dimensional roughness of the injection molding material, and estimating the peak shear strength.

The injection molding material containing the structural surface fluctuation form can be used as a bottom wall model of a structural surface, a structural surface top wall model containing the structural surface fluctuation form is manufactured indoors, geomechanical model test pieces representing the structural surface top wall and the bottom wall are poured by respectively taking the structural surface bottom wall model and the top wall model as reference surfaces and adopting similar materials simulating rock properties, and then a mechanical test of the three-dimensional structural surface shear strength is carried out.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.