CN110055998A - A kind of assembled counterfort retaining wall - Google Patents

Abstract

The invention discloses an assembled buttress retaining wall, which belongs to the technical field of retaining walls. The tenon and the wall toe board, the wall heel board and the wall panel are internally connected by a tenon-and-mortise structure, buttresses are provided on both sides of the wall panel, and the tenon, the wall toe board, the wall heel board, the wall board are provided with buttresses. The panels and the external structural units of the buttress are connected by bolts with L-shaped angle steel and steel plate; the prefabricated structural unit of the prefabricated buttress retaining wall reduces the amount of on-site work, shortens the construction period, saves materials, and does not use a lot of construction. Equipment, cost reduction, less waste of building materials during construction, less impact on the surrounding environment, and easy application.

Description

An assembled buttress retaining wall

technical field

The invention relates to an assembled buttress retaining wall, belonging to the technical field of retaining walls.

Background technique

With the rapid development of the economy, civil engineering works are increasing. In my country, many engineering projects need to be built in mountainous areas with relatively undulating terrain. Filling and excavation slopes of 10m-25m are often encountered in actual engineering projects. Most of the projects use cast-in-place buttress retaining walls for slope support.

However, the cast-in-place buttress retaining wall has many shortcomings. In terms of construction: the amount of work on site is large, the construction period is long, the material is wasted, and a large amount of equipment is required; economic: due to the waste of materials and the use of a large number of construction equipment As a result, the cost is high; environmental protection: the waste of building materials during the construction process has a great impact on the surrounding environment.

SUMMARY OF THE INVENTION

In view of the above problems, the technical problem to be solved by the present invention is to provide an assembled buttress retaining wall.

The prefabricated buttress retaining wall of the present invention comprises tenons, wall toe boards, wall heel boards, wall panels, buttresses, L-shaped angle steel and steel plates, said tenons and wall toe boards, wall heel boards and wall The panels are internally connected by a tenon-and-mortise structure, buttresses are provided on both sides of the wall panel, and L-angle steel is used between the tenon, the wall toe board, the wall heel board, the wall panel and the external structural units of the buttress. , steel plate bolted connection;

The wall panel includes a lower-layer wall panel, a middle-layer wall panel and an upper-layer wall panel, and the lower-layer wall panel, the middle-layer wall panel and the upper-layer wall panel are arranged sequentially from bottom to top;

The buttress comprises a lower buttress, a middle buttress and an upper buttress, and the lower buttress, the middle buttress and the upper buttress are arranged in order from bottom to top;

The L-shaped angle steel includes convex-toe L-shaped angle steel, convex-heel L-shaped angle steel, wall-toe L-shaped steel angle and wall-heel L-shaped angle steel, and the convex-toe L-shaped angle steel is located in the connection between the tenon and the wall toe plate. The convex-heel L-angle steel is located at the joint between the tenon and the wall heel plate, the wall-toe L-angle steel is located at the joint of the wall toe plate and the wall plate, and the wall-heel L-angle steel is located at the joint of the wall heel plate and the wall plate;

The steel plate includes tenon steel plate, wall toe steel plate, wall heel steel plate, wall steel plate, wall-wall steel plate, wall-wall reserved steel plate, wall-heel reserved steel plate, middle wall-lower wall steel plate and upper wall-middle wall steel plate. Wall steel plate, the tenon steel plate is located at the adjacent tenon joint, the wall toe steel plate is located at the adjacent wall toe plate joint, the wall heel steel plate is located at the lower part of the adjacent wall heel plate joint, and the wall steel plate is located at the upper and lower sides. At the connection of adjacent wall panels, the wall-wall steel plate is located at the connection between the wall panel and the buttress, the wall-wall reserved steel plate is located at the connection between the left and right adjacent wall panels, and the wall-heel reserved steel plate is located at the adjacent wall heel plate connection In the upper part of the upper part, the middle wall-lower wall steel plate is located at the connection between the lower buttress and the middle buttress, and the upper wall-middle wall steel plate is located at the connection between the middle buttress and the upper buttress.

Preferably, holes are reserved at the connecting ends between the tenons, and holes are reserved on the steel plates connecting the tenons to match them, and holes are reserved on the tenons at the connecting ends of the toe plate and the heel plate, and Match with the holes reserved on the convex-toe L-angle steel and the convex-heel L-angle steel.

Preferably, holes are reserved at the connecting ends between the wall toe boards and match the holes reserved on the wall toe steel plates connecting the wall toe boards, and the connecting ends of the wall toe boards are reserved with tenons Holes, which match the holes reserved on the convex-toe L-angle steel and the wall-toe L-angle steel.

Preferably, holes are reserved at the connecting ends between the heel plates, which match with the holes reserved on the steel plates of the heel plates connecting the heel plates, and the heel plates are reserved at the connecting ends of the tenons. Holes, which match the holes reserved on the convex-heel L-angle steel and the wall-heel L-angle steel.

Preferably, the lower wall panels have holes reserved all around, the upper holes match the holes reserved on the wall steel plates connecting the upper and lower wall panels, and the left and right holes match the holes reserved on the wall-wall steel plates. The holes are matched, and the wall-toe L-angle steel matches the holes reserved on the wall-heel L-angle steel.

Preferably, the middle wall panel reserves holes all around, the upper and lower side holes match the holes reserved on the wall steel plate, and the left and right side holes match the holes reserved on the wall-wall steel plate.

Preferably, holes are reserved on the lower, left and right sides of the upper wall panel, the lower holes are matched with the holes reserved on the wall steel plate connecting the upper and lower wall panels, and the left and right side holes are connected with the walls connecting different wall panels. - Match the holes reserved in the wall plate.

Preferably, the reserved wall-wall steel plates of the lower buttresses are matched with the holes reserved on the wall-wall steel plates for connecting different cross-wall panels, and are matched with the connecting ends of the wall heel plates. The reserved wall-heel reserved steel plate matches the holes reserved on the steel plate and the wall-heel steel plate connecting the wall heel plate, and the holes are reserved for the connecting end of the upper buttress. The holes reserved on the steel plates are matched, and the lower buttresses are prefabricated by the wall-wall reserved steel plates reserved for the connection end of the lower wall panel and the wall-heel reserved steel plates reserved for the connection ends of the wall heel plates. The vertical tube sheet welding form connects the wall-wall reserved steel plate and the wall-heel reserved steel plate with the reinforcement in the buttress.

Preferably, the wall-wall reserved steel plates reserved for connecting ends of the middle-layer buttresses with the middle-layer wall panels are matched with the holes reserved on the wall-wall steel plates connecting different cross-wall panels, and the upper-layer buttresses and the lower-layer buttresses There are reserved holes at the connecting end of the buttresses, the upper holes match the holes reserved on the upper-middle wall steel plate connecting the upper buttresses, and the lower holes match those reserved on the middle-lower wall steel plates connecting the lower buttresses. Leave the holes to match.

Preferably, the wall-wall reserved steel plates reserved for connecting ends of the upper wall panels of the middle buttresses are matched with the holes reserved on the wall-wall steel plates connecting different cross-wall panels, and the connecting ends of the lower buttresses are matched Reserve holes, which match the holes reserved on the upper-middle wall steel plate connecting the lower buttresses.

Compared with the prior art, the beneficial effects of the present invention are: the prefabricated buttress retaining wall reduces the on-site workload, shortens the construction period, saves materials, does not use a large number of construction equipment, reduces the cost, and reduces the construction cost. In the process, the waste of building materials is small, the impact on the surrounding environment is small, and the application is convenient.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the side view structure schematic diagram of the present invention;

Fig. 3 is the top view structure schematic diagram of the present invention;

Fig. 4 is the tenon structure schematic diagram of the present invention;

Fig. 5 is the structural schematic diagram of the wall heel plate of the present invention;

6 is a schematic diagram of the wall panel structure of the present invention;

7 is a schematic diagram of the structure of the lower buttress of the present invention;

FIG. 8 is a schematic diagram of the structure of the wall toe board of the present invention;

9 is a schematic diagram of a middle-level buttress structure of the present invention;

Figure 10 is a schematic diagram of the structure of the upper buttress of the present invention.

Reference numerals: tenon 1, wall toe plate 2, wall heel plate 3, wall panel 4, buttress 5, L-shaped angle steel 6, steel plate 7, lower wall panel 4a, middle wall panel 4b, upper wall panel 4c, lower layer Buttress 5a, middle buttress 5b, upper buttress 5c, convex-toe L-angle 6a, convex-heel L-angle 6b, wall-toe L-angle 6c, wall-heel L-angle 6d, tenon steel plate 7a , wall toe steel plate 7b, wall heel steel plate 7c, wall steel plate 7d, wall-wall steel plate 7e, wall-wall reserved steel plate 7f, wall-heel reserved steel plate 7g, middle wall-lower wall steel plate 7h, upper wall-center Wall plate 7i.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-10, this specific embodiment adopts the following technical solutions: the assembled buttress retaining wall includes tenons 1, wall toe boards 2, wall heel boards 3, wall panels 4, buttresses 5, L-shaped Angle steel 6 and steel plate 7, tenon 1 and wall toe board 2, wall heel board 3 and wall panel 4 are internally connected by tenon and mortise structure, both sides of wall panel 4 are provided with buttresses 5, tenon 1, wall toe The external structural units of the plate 2, the wall heel plate 3, the wall panel 4 and the buttress 5 are connected by bolts through the L-shaped angle steel 6 and the steel plate 7;

The wall panel 4 includes a lower layer wall panel 4a, a middle layer wall panel 4b and an upper layer wall panel 4c, and the lower layer wall panel 4a, the middle layer wall panel 4b and the upper layer wall panel 4c are arranged sequentially from bottom to top;

The buttress 5 comprises a lower buttress 5a, a middle buttress 5b and an upper buttress 5c, and the lower buttress 5a, the middle buttress 5b and the upper buttress 5c are arranged in order from bottom to top;

The L-shaped angle steel 6 includes a convex-toe L-shaped angle steel 6a, a convex-heel L-shaped angle steel 6b, a wall-toe L-shaped angle steel 6c and a wall-heel L-shaped angle steel 6d, and the convex-toe L-shaped angle steel 6a is located in the tenon 1 and the wall. The joint of toe board 2, the convex-heel L-shaped angle steel 6b is located at the joint of tenon 1 and the wall heel plate 3, the wall-toe L-shaped angle steel 6c is located at the joint of the wall toe board 2 and the wall panel 4, and the wall-heel L-shaped angle steel 6d is located at the junction of the heel panel 3 and the wall panel 4;

The steel plate 7 includes tenon steel plate 7a, wall toe steel plate 7b, wall heel steel plate 7c, wall steel plate 7d, wall-wall steel plate 7e, wall-wall reserved steel plate 7f, wall-heel reserved steel plate 7g, middle wall-lower wall The steel plate 7h and the upper wall-middle wall steel plate 7i, the tenon steel plate 7a is located at the connection of the adjacent tenon 1, the wall toe steel plate 7b is located at the connection of the adjacent wall toe plate 2, and the wall heel steel plate 7c is located at the adjacent wall heel The lower part of the junction of the board 3, the wall steel plate 7d is located at the junction of the upper and lower adjacent wall panels 4, the wall-wall steel plate 7e is located at the junction of the wall panel 4 and the buttress 5, and the wall-wall reserved steel plate 7f is located on the left and right adjacent walls. Panel 4 junction, the wall-heel reserved steel plate 7g is located at the upper part of the adjacent wall-heel plate 3 junction, the middle wall-lower wall steel plate 7h is located at the junction of the lower buttress 5a and the middle buttress 5b, the upper wall-middle wall steel plate 7i is located at the junction of the middle buttress 5b and the upper buttress 5c.

Holes are reserved at the connection end between the tenons 1, and holes are reserved on the steel plate 7a connecting the tenons 1 to match them, and holes are reserved on the tenons 1 at the connection ends of the toe plate 2 and the heel plate 3, and are connected with the tenon 1. The holes reserved on the convex-toe L-shaped angle steel 6a and the convex-heel L-shaped angle steel 6b are matched.

The connecting end between the wall toe boards 2 has reserved holes, which are matched with the holes reserved on the wall toe steel plate 7b connecting the wall toe boards 2, and the holes are reserved on the connecting end with the tenon 1 on the wall toe board 2, It matches with the holes reserved on the convex-toe L-shaped angle steel 6a and the wall-toe L-shaped angle steel 6c.

The connection end between the wall heel plates 3 has reserved holes, which are matched with the reserved holes on the wall heel steel plate 7c connecting the wall heel plates 3, and the wall heel plates 3 reserve holes at the connection end with the tenon 1, It matches with the holes reserved on the convex-heel L-shaped angle steel 6b and the wall-heel L-shaped angle steel 6d.

The lower wall panel 4a reserves holes all around, the upper side holes match the holes reserved on the wall steel plate 7d connecting the upper and lower wall panels, and the left and right side holes match the holes reserved on the wall-wall steel plate 7e. Matching, the wall-toe L-angle steel 6c matches the holes reserved on the wall-heel L-angle steel 6d.

The middle wall panel 4b reserves holes all around, the upper and lower side holes match the holes reserved on the wall steel plate 7d, and the left and right side holes match the holes reserved on the wall-wall steel plate 7e.

The upper wall panel 4c has reserved holes on the lower, left and right sides, the lower holes match the holes reserved on the wall steel plate 7d connecting the upper and lower wall panels, and the left and right side holes are connected with the wall-wall steel plates of different spanning wall panels. The holes reserved on the 7e match.

The wall-wall reserved steel plate 7f of the lower buttress 5a at the connection end of the lower wall panel 4a is matched with the reserved holes on the wall-wall steel plate 7e connecting different spanning wall panels, and the connection end of the wall heel plate 3 is matched. The reserved wall-heel reserved steel plate 7g is matched with the reserved hole on the steel plate wall butt steel plate 7c connecting the wall heel plate 3, and the hole is reserved with the connection end of the upper buttress 5b, and the hole is connected to the upper buttress 5b. The holes reserved on the middle wall-lower wall steel plate 7h are matched, and the lower buttress 5a is reserved at the wall-wall reserved steel plate 7f and the connection end with the wall heel plate 3 at the wall-wall reserved steel plate 7f with the connection end of the lower wall panel 4a. The wall-heel reserved steel plate 7g is prefabricated by vertical tube plate welding to connect the wall-wall reserved steel plate 7f and the wall-heel reserved steel plate 7g with the reinforcement in the buttress 5.

The wall-wall reserved steel plate 7f reserved at the connecting end of the middle-layer buttress 5b with the middle-layer wall panel 4b matches the holes reserved on the wall-wall steel plate 7e connecting different cross-wall panels, and is matched with the upper buttress 5c and the lower layer. A hole is reserved at the connecting end of the buttress 5a, the hole on the upper side matches the hole reserved on the upper wall-middle wall steel plate 7i connecting the upper buttress 5c, and the hole on the lower side matches the middle wall-lower wall connecting the buttress 5a of the lower layer. Match the holes reserved on the steel plate 7h.

The wall-wall reserved steel plate 7f reserved at the connecting end of the middle-layer buttress 5c with the upper-layer wall panel 4c is matched with the reserved hole on the wall-wall steel plate 7e connecting different cross-wall panels, and the connecting end of the lower-layer buttress 5b is matched. Holes are reserved, and the holes match the holes reserved on the upper wall-middle wall steel plate 7i connecting the lower buttresses 5b.

The construction steps of the prefabricated buttress retaining wall in this specific embodiment: step 1, first install the first tenon 1;

Step 2, carry out tenon-and-mortise connection with the first wall toe board 2 and the wall heel board 3 through construction equipment and tenon unit, and then carry out bolt connection;

Step 3. The two adjacent tenons 1 are spliced by construction equipment, and then bolted, and the second wall toe plate 2 and the wall heel plate 3 are connected by tenon and tenon through construction equipment and tenon units, and then bolted. Connection, the adjacent wall toe plate 2 and the wall heel plate 3 units are connected by bolts, and the adjacent wall heel plates 3 are bolted through the outermost two columns of holes (the inner holes are connected with the buttress 5), to And so on to complete the installation of tenon 1, wall toe board 2, wall heel board 3;

Step 4, install the lower wall panel 4a, carry out tenon-and-mortise connection with the lower wall panel 4a and tenon 1, and then carry out bolt connection with the adjacent lower wall panel 4a, wall toe board 2, wall heel board 3, different spanning walls The panels are bolted through the two outermost rows of holes (the inner holes are connected to the buttress 5), and so on to complete the installation of the lower wall panel 4a;

Step 5, install the lower buttress 5a, connect the lower buttress 5a with the reserved holes on the inner side of the connecting end of the wall panel 4, and connect the reserved holes on the inner side of the connecting end of the lower buttress 5a with the wall heel plate 3 by bolts, so as to By analogy, the installation of the lower buttress 5a is completed;

Step 6: Install the middle wall panel 4b, connect the upper and lower wall panels 4 on the same span by tenon and mortise, and then perform bolt connection. The different span wall panels are bolted through the outermost two columns of holes (the inner hole is connected with the buttress 5) , and so on to complete the installation of the second-layer wall panel 4b;

Step 7: Install the middle layer buttress 5b, connect the middle layer buttress 5b and the lower layer buttress 5a with bolts, reserve holes on the inner side of the connecting end of the middle layer buttress 5b and the middle layer wall panel 4b for bolt connection, and so on to complete the middle layer buttress. Installation of wall 5b;

Step 8: Install the upper wall panel 4c, bolt the upper and lower wall panels 4 on the same span, and bolt the different span wall panels through the outermost two columns of holes (the inner hole is connected to the buttress), and so on to complete the third step. Installation of the layer wall panel 4c;

Step 9: Install the upper buttress 5c, connect the upper buttress 5c and the middle buttress 5b with bolts, and use the reserved holes on the inner side of the connecting end of the upper buttress 5c and the upper wall panel 4c for bolting, and so on to complete the upper buttress. Installation of wall 5c.

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

Claims (10)

1. a kind of assembled counterfort retaining wall, it is characterised in that: it includes tenon (1), toe of wall plate (2), wall heel slab (3), metope Plate (4), counterfort (5), L-type angle steel (6) and steel plate (7), the tenon (1) and toe of wall plate (2), wall heel slab (3) and shingle nail (4) internal connection is carried out by joinery and its construction between, shingle nail (4) two sides are provided with counterfort (5), the tenon (1), wall Toe board (2), wall heel slab (3), shingle nail (4) and counterfort (5) external structure unit between pass through L-type angle steel (6), steel plate (7) it is bolted；The shingle nail (4) includes lower layer's shingle nail (4a), middle layer shingle nail (4b) and upper layer shingle nail (4c), lower layer's shingle nail (4a), middle layer shingle nail (4b) and upper layer shingle nail (4c) are set gradually from lower to upper；It is described to help Wall (5) includes lower layer's counterfort (5a), middle layer counterfort (5b) and upper layer counterfort (5c), lower layer's counterfort (5a), middle layer counterfort (5b) and upper layer counterfort (5c) are set gradually from lower to upper；The L-type angle steel (6) includes convex-toe L-type angle steel (6a), convex-heel L Type angle steel (6b), wall-toe L-type angle steel (6c) and wall-heel L-type angle steel (6d), the convex-toe L-type angle steel (6a) are located at tenon (1) With toe of wall plate (2) junction, convex-heel L-type angle steel (6b) is located at tenon (1) and wall heel slab (3) junction, wall-toe L-type angle steel (6c) is located at toe of wall plate (2) and shingle nail (4) junction, and wall-heel L-type angle steel (6d) is located at wall heel slab (3) and shingle nail (4) even Meet place；The steel plate (7) includes tenon steel plate (7a), toe of wall steel plate (7b), wall heel steel plate (7c), metope steel plate (7d), wall-wall Steel plate (7e), wall-wall reserve steel plate (7f), steel plate (7g), mesospore-lower wall steel plate (7h) and upper wall-mesospore steel plate are reserved in wall-heel (7i), the tenon steel plate (7a) are located at adjacent tenon (1) junction, and toe of wall steel plate (7b) is located at adjacent toe of wall plate (2) Junction, wall heel steel plate (7c) are located at adjacent wall heel slab (3) junction lower part, and metope steel plate (7d) is located at neighbouring wall Panel (4) junction, wall-wall steel plate (7e) are located at shingle nail (4) and counterfort (5) junction, and wall-wall is reserved steel plate (7f) and is located at Left and right adjacent shingle nail (4) junction, wall-heel reserve steel plate (7g) and are located at adjacent wall heel slab (3) junction top, in Wall-lower wall steel plate (7h) is located at lower layer's counterfort (5a) and the junction middle layer counterfort (5b), and upper wall-mesospore steel plate (7i) is located at middle layer Counterfort (5b) and the junction upper layer counterfort (5c), connecting pin reserving hole between the tenon (1), and connect the steel of tenon (1) Reserving hole matches with it on plate (7a), on the tenon (1) with toe of wall plate (2) and wall heel slab (3) connecting pin preformed hole Hole, and match with the hole reserved on convex-toe L-type angle steel (6a) and convex-heel L-type angle steel (6b).

2. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: between the toe of wall plate (2) Connecting pin reserving hole, and match with the hole reserved on the toe of wall steel plate (7b) of connection wall toe board (2), the toe of wall Pre- with institute on tenon (1) connecting pin reserving hole, with convex-toe L-type angle steel (6a) and wall-toe L-type angle steel (6c) on plate (2) The hole stayed matches.

3. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: between the wall heel slab (3) The hole reserved on connecting pin reserving hole, with wall heel steel plate (7c) of connection wall heel slab (3) matches, the wall heel slab (3) it (is reserved on 1 connecting pin reserving hole, with convex-heel L-type angle steel (6b) and wall-heel L-type angle steel (6d) on tenon Hole match.

4. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: lower layer's shingle nail (4a) exists The hole reserved on the equal reserving hole of surrounding, upside hole and the metope steel plate (7d) for connecting upper and lower level shingle nail matches, The hole reserved in left and right side cavities and wall-wall steel plate (7e) matches, wall-toe L-type angle steel (6c) and wall-heel L-type angle steel The hole reserved on (6d) matches.

5. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: the middle layer shingle nail (4b) exists The equal reserving hole of surrounding, the hole reserved on upper and lower side cavities and metope steel plate (7d) match, left and right side cavities and wall-wall The hole reserved on steel plate (7e) matches.

6. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: the upper layer shingle nail (4c) exists The hole phase reserved on the equal reserving hole in lower three side of left and right, downside hole and the metope steel plate (7d) for connecting upper and lower level shingle nail It matches, the hole reserved on the left and right side cavities wall across shingle nail different from connection-wall steel plate (7e) matches.

7. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: lower layer's counterfort (5a) with Reserved wall-the wall in lower layer's shingle nail connecting pin (4a) reserves steel plate (7f) wall across shingle nail different from connection-wall steel plate (7e) On the hole reserved match, reserve steel plate (7g) and connection wall heel slab (3) with wall-heel that wall heel slab (3) connecting pin is reserved Steel plate wall heel steel plate (7c) on the hole reserved match, with the connecting pin upper layer counterfort (5b) reserving hole, hole and company It connects the hole reserved on mesospore-lower wall steel plate (7h) of a layer counterfort (5b) to match, lower layer's counterfort (5a) is under Steel is reserved in wall-heel that the reserved wall-wall in the layer shingle nail connecting pin (4a) is reserved steel plate (7f) and reserved with wall heel slab (3) connecting pin Wall-wall is reserved by steel plate (7f) using vertical tube sheets welding form when plate (7g) is prefabricated and steel plate (7g) and counterfort are reserved in wall-heel (5) interior arrangement of reinforcement is connected.

8. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: the middle layer counterfort (5b) with Reserved wall-the wall in the middle layer shingle nail connecting pin (4b) reserves steel plate (7f) wall across shingle nail different from connection-wall steel plate (7e) On the hole reserved match, with upper layer counterfort (5c) and the connecting pin lower layer's counterfort (5a) reserving hole, upside hole and company The hole reserved on upper wall-mesospore steel plate (7i) of a layer counterfort (5c) is connected to match, downside hole with connect lower layer's counterfort The hole reserved on the mesospore of (5a)-lower wall steel plate (7h) matches.

9. a kind of assembled counterfort retaining wall according to claim 1, it is characterised in that: the middle layer counterfort (5c) with Reserved wall-the wall in the upper layer shingle nail connecting pin (4c) reserves steel plate (7f) wall across shingle nail different from connection-wall steel plate (7e) On the hole reserved match, and the connecting pin lower layer counterfort (5b) reserving hole, hole with connect the upper of lower layer's counterfort (5b) The hole reserved on wall-mesospore steel plate (7i) matches.

10. a kind of construction method of assembled counterfort retaining wall, it is characterised in that: Specific construction step:

Step 1: installing first piece of tenon (1) first；

Step 2: first piece of toe of wall plate (2) and wall heel slab (3) are subjected to mortise-tenon joint by construction instrument and tenon unit, then It is bolted；

Step 3: two adjacent tenons (1) are spliced by instrument of constructing, then it is bolted, by second piece of toe of wall Plate (2) and wall heel slab (3) are by construction instrument and tenon unit progress mortise-tenon joint, then are bolted, adjacent toe of wall Be bolted between plate (2) and wall heel slab (3) unit, between adjacent wall heel slab (3) by two column hole of outermost into Row be bolted, inside hole is connect with counterfort (5), and so on completion tenon (1), toe of wall plate (2), wall heel slab (3) peace Dress；

Step 4: installation lower layer's shingle nail (4a), lower layer's shingle nail (4a) and tenon (1) are subjected to mortise-tenon joint, then with it is adjacent Lower layer's shingle nail (4a) and toe of wall plate (2), wall heel slab are bolted between (3), different to pass through outermost two across shingle nail Column hole is bolted, and inside hole is connect with counterfort (5), and so on complete lower layer's shingle nail (4a) installation；

Step 5: installation lower layer's counterfort (5a), lower layer's counterfort (5a) and the inside reserving hole of shingle nail (4) connecting pin are carried out Be bolted, lower layer's counterfort (5a) and the inside reserving hole of wall heel slab (3) connecting pin be bolted, and so on it is complete At the installation of lower layer's counterfort (5a)；

Step 6: installation middle layer shingle nail (4b), will carry out mortise-tenon joint with lower two shingle nails (4) are stepped up, then carry out bolt Connection, difference are bolted across shingle nail by two column hole of outermost, and inside hole is connect with counterfort (5), with such Push away the installation for completing second layer shingle nail (4b)；

Step 7: installation middle layer counterfort (5b), will be bolted, middle layer between middle layer counterfort (5b) and lower layer's counterfort (5a) Counterfort (5b) and the inside reserving hole of the connecting pin middle layer shingle nail (4b) are bolted, and so on complete middle layer counterfort The installation of (5b)；

Step 8: installation upper layer shingle nail (4c), will be bolted, difference is across metope with lower two shingle nails (4) are stepped up Plate is bolted by two column hole of outermost, and inside hole is connect with counterfort, and so on complete third layer shingle nail The installation of (4c)；

Step 9: installation upper layer counterfort (5c), will be bolted, upper layer between upper layer counterfort (5c) and middle layer counterfort (5b) Counterfort (5c) and the inside reserving hole of the connecting pin upper layer shingle nail (4c) are bolted, and so on complete upper layer counterfort The installation of (5c).