CN111206602B - Partially collapsed high slope lattice beam formwork system and construction method - Google Patents
Partially collapsed high slope lattice beam formwork system and construction method Download PDFInfo
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- CN111206602B CN111206602B CN202010150892.9A CN202010150892A CN111206602B CN 111206602 B CN111206602 B CN 111206602B CN 202010150892 A CN202010150892 A CN 202010150892A CN 111206602 B CN111206602 B CN 111206602B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
The invention relates to a locally collapsed high slope lattice beam template system and a construction method, and belongs to the technical field of building construction. The locally collapsed high slope lattice beam system comprises lattice beams arranged along a slope array, wherein a rapid trough is arranged between adjacent lattice beams and extends downwards to the bottom of the slope along the slope surface, a plurality of layers of horizontal steps are arranged on the rapid trough along the slope surface, and a drainage ditch is arranged on the inner side of the slope platform; the lattice beam template system comprises longitudinal beam template components and transverse beam template components, wherein the longitudinal beam template components and the transverse beam template components are intersected in a lattice-shaped beam template in a same-position mode. The invention effectively solves the technical problems that the lattice beam template of the high slope is difficult to assemble at the local collapse part and is easy to deflect, and can realize standardized construction.
Description
Technical Field
The invention relates to a locally collapsed high slope lattice beam template system and a construction method, and belongs to the technical field of building construction.
Background
The anchor cable lattice beam can reinforce shallow strongly weathered broken rock-soil bodies and effectively stabilize deep rock-soil bodies, and is widely applied to roadbed high slope reinforcement. For a broken rock high slope or a soil slope, if the support is not timely after excavation, the soil body of the shallow rock layer is easy to collapse and slide under the action of rain wash. Due to the existence of the slope potholes, the lattice beam template cannot be assembled on the slope surface flatly, and the formed rectangular template is easy to deflect in the pouring process.
For the lattice beam template construction in collapsed areas, the longitudinal beam template is widely spliced by small wood templates at present, however, the mode is time-consuming and labor-consuming, and the formed lattice beam is easy to cause quality problems such as concrete slab staggering and the like. The beam formwork adopts a cross brace or a steel pipe to support the formwork, but the supporting structure is heavy. And if the template deforms or collapses, the bottom thickness of the poured lattice beam is not uniform. When the lattice beam template is erected, the rapid trough template is difficult to erect, the skirting surface in the formed rapid trough is irregular, and the passing function is poor. In addition, the slope surface which is not sprayed with mortar is easy to be hollowed out when rainwater erodes the soil body on the bottom surface of the lower frame, so that the whole frame beam is damaged.
The reason is that the design thought of the lattice beam template and the support system thereof is unreasonable, and the structural reliability is poor. In order to improve the lattice beam construction efficiency and ensure the engineering quality, a locally collapsed high slope anchor cable lattice beam template system and a construction method are urgently needed.
Disclosure of Invention
The invention provides a latticed beam template system and a construction method for locally collapsing high slopes, which aims to stabilize and level a beam bottom soil body, improve the efficiency and quality of latticed beam construction, ensure that a latticed beam template does not deflect in the pouring process, and ensure that a formed latticed beam is flat and smooth.
A high slope lattice beam template system of local collapse, the lattice beam system of local collapse includes the lattice beam 1 that is set up along the slope array, there are rapid trough 2 between the adjacent lattice beam 1 and the rapid trough 2 extends to the bottom of the slope along the slope, the rapid trough 2 has several layers of horizontal steps along the slope, there are drainage ditches 3 inside the side slope platform; the template system of the lattice beam 1 comprises longitudinal beam template components 4 and transverse beam template components 5, wherein the longitudinal beam template components 4 and the transverse beam template components 5 are intersected in a lattice-shaped beam template in a coordinated way.
Furthermore, each group of the pull fasteners 7 comprises a tooth screw I, a tooth screw II, a bent rib I and a bent rib II, the bent rib I is fixedly arranged at the bottom end of the tooth screw I to form a hook I, the bent rib II is fixedly arranged at the bottom end of the tooth screw II to form a hook II, each group of the fixed transverse ribs 6 comprises a long rib I, a long rib II and a short rib, the long rib I and the long rib II are arranged in parallel, the short rib is vertically and fixedly arranged in the middle of the long rib I and the long rib II to form a longitudinal beam reinforcement horizontal frame, and the longitudinal beam reinforcement horizontal frame is horizontally arranged at the top end of the longitudinal beam supporting wood board; every group anchor muscle 8 includes anchor muscle I and anchor muscle II, and the bottom of anchor muscle I and anchor muscle II inclines respectively to insert and establishes in the side slope ground layer and be located the both sides that the longeron supported the plank, and establish on anchor muscle I is hung to crotch I, and the end between long muscle I and long muscle II is fixed on the top of tooth lead screw I, and establish on anchor muscle II is hung to crotch II, and another end between long muscle I and long muscle II is fixed on the top of tooth lead screw II.
Furthermore, each group of the pulling and buckling pieces 7 further comprises a mountain-shaped clamp I, a mountain-shaped clamp II, a nut I and a nut II, through holes I are formed in the middle parts of the mountain-shaped clamp I and the mountain-shaped clamp II, external threads are arranged on the tops of the tooth lead screw I and the tooth lead screw II, the mountain-shaped clamp I and the mountain-shaped clamp II are respectively arranged at two ends of the fixed transverse rib 6 and are located at the top end of the fixed transverse rib 6, one ends of the long rib I and the long rib II of the fixed transverse rib 6 are respectively located in a groove at the bottom end of the mountain-shaped clamp I, the other ends of the long rib I and the long rib II of the fixed transverse rib 6 are respectively located in a groove at the bottom end of the mountain-shaped clamp II, the top of the tooth lead screw I sequentially penetrates through a gap between the long rib I and the long rib II and the through hole I of the mountain-shaped clamp I, and the nut I is sleeved on the top end of the tooth lead screw I and is located on the outer side of the mountain-shaped clamp I; the top of the tooth lead screw II sequentially penetrates through a gap between the long rib I and the long rib II and a through hole II of the mountain-shaped clamp II, and the nut II is sleeved on the top end of the tooth lead screw II and is located on the outer side of the mountain-shaped clamp II.
Preferably, the nut I and the nut II are both mountain-shaped nuts, and clamping end flanges are arranged on two sides of each mountain-shaped nut, so that the disassembly is convenient.
The distance between the adjacent groups of the fixed transverse ribs 6 is 1 m-1.5 m.
Further, the beam template member 5 further comprises a construction rib, and the construction rib is horizontally inserted into the slope rock-soil layer and arranged in the beam reinforcement cage.
Preferably, the distance between adjacent construction ribs is 1 m-1.5 m.
The template of rapid trough 2 includes kicking face template 11, locating template I12 and locating template II, and locating template I12 and locating template II set up the opposite face at adjacent lattice beam 1 along domatic fixed downwards, and kicking face template 11 equidistance level is fixed to be set up between locating template I12 and locating template II.
Preferably, location template I12 and location template II are fixed through step fastener and are set up the opposite face at adjacent lattice beam 1, and the setting is between I12 of location template and location template II through step level such as screw to the kicking face template 11.
Preferably, the positioning template I12 and the positioning template II are both sawtooth-shaped templates, and the angle of the sawtooth is 90 degrees;
the template in escape canal 3 is including interior positioning reinforcement, interior steel form, outer steel form 13 and outer positioning reinforcement 14, interior steel form and outer steel form 13 all set up at side slope platform inboard and interior steel form and the parallel formation escape canal template frame of outer steel form 13, form escape canal 3 between interior steel form and the lattice beam 1, the bottom of interior positioning reinforcement and outer positioning reinforcement 14 is all inserted and is established in the ground of side slope platform in situ and be located escape canal template frame inboard, interior positioning reinforcement is located the inside wall of interior steel form, outer positioning reinforcement 14 is located the inside wall of outer steel form 13.
Preferably, escape canal 3's template still includes short reinforcement, escape canal iron wire, short ledger, long ledger and escape canal step fastener, evenly is provided with short reinforcement between the top of interior steel form and outer steel form 13, and escape canal iron wire fixed connection is passed through to the bottom of interior steel form and outer steel form 13, and interior steel form and outer steel form 13's top is through short ledger fixed connection, and the one end of long ledger is fixed to be set up on short ledger and the other end passes through the fixed setting on the longeron of last one-level slope lattice girder of escape canal step fastener.
The construction method of the locally collapsed high slope lattice beam is based on a locally collapsed high slope lattice beam template system and comprises the following specific steps:
(1) blasting and excavating a high slope to form a multi-stage step structure, and cleaning loose or suspended rocks on the slope surface from top to bottom;
(2) measuring the position, the interval and the size of a side slope frame beam, designing a grid line of a lattice beam, installing an anchor rod and an anchor cable at the intersection of a longitudinal beam and a transverse beam of the lattice beam, binding a reinforcement cage to form a longitudinal beam reinforcement cage and a transverse beam reinforcement cage, and grouting the anchor cable;
(3) cleaning a slope platform, arranging inner positioning steel bars and outer positioning steel bars on the inner side of the platform, installing inner steel templates on the inner sides of the inner positioning steel bars, forming drainage ditches between the inner steel templates and lattice beams, and installing outer steel templates on the outer sides of the outer positioning steel bars; the top ends of the inner steel template and the outer steel template are fixed by uniformly arranging short reinforcing steel bars, the bottom ends of the inner steel template and the outer steel template are fixedly connected in a oppositely-pulling mode through drainage ditch iron wires, the top ends of the inner steel template and the outer steel template are fixedly bound through short crossbars, one end of a long crossbar is fixedly arranged on the short crossbar, and the other end of the long crossbar is fixedly arranged on a longitudinal beam of the upper grade of slope lattice beam through a drainage ditch step fastening piece;
(4) binding a longitudinal beam top template on the upper surface of a longitudinal beam reinforcement cage, binding a transverse beam top template on the upper surface of a transverse beam reinforcement cage, placing a longitudinal beam side template on the side surface of the longitudinal beam reinforcement cage, and fixedly connecting the top end of the longitudinal beam side template with the edge of the longitudinal beam top template;
(5) obliquely inserting anchoring ribs into two sides of a supporting board of the longitudinal beam formwork, fixing cross beams on two sides of a top formwork of the longitudinal beam, arranging fixing cross ribs on the upper surfaces of the cross beams, fixedly arranging the top ends of the pulling and buckling pieces on the fixing cross ribs, and connecting the bottom ends of the pulling and buckling pieces with the anchoring ribs;
(6) inserting bottom support bars into the rock-soil layer at the bottom end of the beam reinforcement cage; inserting top anchoring ribs into the rock-soil layer at the top end of the cross beam reinforcement cage, placing a cross beam side formwork on the side face of the cross beam reinforcement cage, and fixedly connecting the top end of the cross beam side formwork with the edge of the cross beam top formwork; connecting and screwing the bottom support rib and the top anchoring rib through iron wires to form a simply supported structure;
(7) pouring concrete from bottom to top by taking the top of the cross beam and the middle of the longitudinal beam as pouring notches;
(8) after the lattice beam concrete is finally set, dismantling the longitudinal beam template component and the cross beam template component, fixedly arranging the positioning template I and the positioning template II on opposite surfaces of adjacent lattice beams downwards along the slope, then horizontally and fixedly arranging the skirting templates between the positioning template I and the positioning template II at equal steps, and pouring to finish the construction of the rapid trough.
The invention has the beneficial effects that:
(1) the rubble or backfill work belt is grouted on the locally collapsed slope, so that the influence of the beam bottom groove on the construction quality of the lattice beam and the stability of the side slope is reduced;
(2) the novel longitudinal beam and transverse beam template supporting system is adopted, rotation or collapse of the template in the pouring process is avoided, the structure is simple, and the stress is clear;
(3) the construction process provided by the invention can improve the construction efficiency and reduce the construction cost;
(4) the method is simple and easy to implement, and improves the construction efficiency; the method effectively solves the quality problems that the lattice beam template on the surface of the broken rock or soil high slope after local collapse is difficult to lay and level, and the concrete slab staggering is easily caused by pouring the formed lattice beam in the cavity formed by the spliced templates.
Drawings
FIG. 1 is a schematic structural view of a partially collapsed anchor cable lattice beam template system for a high slope;
FIG. 2 is a schematic structural view of a stringer template and support structure;
FIG. 3 is a schematic structural view of a beam form and support structure;
FIG. 4 is a schematic structural diagram of a chute template;
FIG. 5 is a schematic view of a drainage ditch template mounting structure;
wherein: 1-lattice beam, 2-torrent groove, 3-drainage groove, 4-longitudinal beam formwork member, 5-beam formwork member, 6-fixed transverse bar, 7-fastener, 8-anchoring bar, 9-supporting bar, 10-anchoring bar, 11-skirt formwork, 12-positioning formwork I, 13-outer steel formwork and 14-outer positioning steel bar.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the scope of the present invention is not limited to the description.
Example 1: as shown in fig. 1 to 5, the partially collapsed high slope lattice beam formwork system comprises lattice beams 1 arranged along a slope array, a rapid trough 2 is arranged between adjacent lattice beams 1, the rapid trough 2 extends downwards to the bottom of the slope along the slope, a plurality of horizontal steps are arranged along the slope in the rapid trough 2, and a drainage ditch 3 is arranged on the inner side of the slope platform; the template system of the lattice beam 1 comprises longitudinal beam template components 4 and transverse beam template components 5, wherein the longitudinal beam template components 4 and the transverse beam template components 5 are intersected in a lattice-shaped beam template in a coordinated manner;
Example 2: the partially collapsed high slope lattice beam template system of the embodiment is basically the same as the partially collapsed high slope lattice beam template system of the embodiment 1, and the difference is that: each group of pulling fasteners 7 comprises a tooth screw I, a tooth screw II, a bent rib I and a bent rib II, the bent rib I is fixedly arranged at the bottom end of the tooth screw I to form a hook I, the bent rib II is fixedly arranged at the bottom end of the tooth screw II to form a hook II, each group of fixed transverse ribs 6 comprises a long rib I, a long rib II and a short rib, the long rib I and the long rib II are arranged in parallel, the short rib is vertically and fixedly arranged in the middle of the long rib I and the long rib II to form a longitudinal beam reinforcement horizontal frame, and the longitudinal beam reinforcement horizontal frame is horizontally arranged at the top end of a longitudinal beam supporting wood board; each group of anchoring ribs 8 comprises an anchoring rib I and an anchoring rib II, the bottom ends of the anchoring ribs I and the anchoring ribs II are obliquely inserted into the side slope rock-soil layer and located on two sides of the longitudinal beam supporting wood board respectively, a hook I is hung on the anchoring ribs I, the top end of a tooth lead screw I is fixed at one end between the long rib I and the long rib II, a hook II is hung on the anchoring ribs II, and the top end of the tooth lead screw II is fixed at the other end between the long rib I and the long rib II;
each group of pulling and buckling pieces 7 further comprises a mountain-shaped clamp I, a mountain-shaped clamp II, a nut I and a nut II, through holes I are formed in the middle of the mountain-shaped clamp I and the middle of the mountain-shaped clamp II, external threads are formed in the tops of the tooth lead screw I and the tooth lead screw II, the mountain-shaped clamp I and the mountain-shaped clamp II are respectively arranged at two ends of the fixed transverse rib 6 and located at the top end of the fixed transverse rib 6, one ends of a long rib I and one ends of a long rib II of the fixed transverse rib 6 are respectively located in grooves at the bottom end of the mountain-shaped clamp I, the other ends of the long rib I and the long rib II of the fixed transverse rib 6 are respectively located in grooves at the bottom end of the mountain-shaped clamp II, the top of the tooth lead screw I sequentially penetrates through a gap between the long rib I and the long rib II and the through hole I of the mountain-shaped clamp I, and the nut I is sleeved on the top end of the tooth lead screw I and located on the outer side of the mountain-shaped clamp I; the top of the tooth lead screw II sequentially penetrates through a gap between the long rib I and the long rib II and a through hole II of the mountain-shaped clamp II, and the nut II is sleeved at the top end of the tooth lead screw II and is positioned on the outer side of the mountain-shaped clamp II;
the nut I and the nut II are both mountain-shaped nuts, and clamping end flanges are arranged on two sides of each mountain-shaped nut, so that the disassembly is convenient;
the distance between the adjacent groups of the fixed transverse ribs 6 is 1 m-1.5 m.
Example 3: the partially collapsed high slope lattice beam template system of the embodiment is basically the same as the partially collapsed high slope lattice beam template system of the embodiment 2, and the difference is that:
the crossbeam template component 5 comprises a crossbeam reinforcement cage, a crossbeam supporting board and a plurality of groups of supporting ribs, the crossbeam supporting board is horizontally arranged along the side slope to form a crossbeam template cuboid frame, the crossbeam reinforcement cage is arranged in the crossbeam template cuboid frame, the supporting ribs comprise bottom supporting ribs 9 and top anchoring ribs 10, the bottom supporting ribs 9 are horizontally inserted in the slope rock soil layer and are positioned at the lower ends of the crossbeam supporting board, the top anchoring ribs 10 are vertically inserted in the slope rock soil layer and are positioned at the rear side of the crossbeam supporting board, the bottom supporting ribs 9 and the top anchoring ribs 10 are connected through iron wires, the iron wires bypass the crossbeam template cuboid frame to form a simply supported structure, and the crossbeam external corner template is fixed on the side slope through a T-shaped clamp;
the beam template component also comprises a construction rib which is horizontally inserted in the slope rock-soil layer and is arranged in the beam reinforcement cage;
preferably, the distance between adjacent construction ribs is 1 m-1.5 m.
Example 4: the partially collapsed high slope lattice beam template system of the embodiment is basically the same as the partially collapsed high slope lattice beam template system of the embodiment 3, and the difference is that:
the templates of the rapid trough 2 comprise a skirting template 11, a positioning template I12 and a positioning template II, the positioning template I12 and the positioning template II are fixedly arranged on the opposite surfaces of the adjacent lattice beams 1 downwards along the slope, and the skirting templates 11 are horizontally and fixedly arranged between the positioning template I12 and the positioning template II at equal steps;
preferably, the positioning template I12 and the positioning template II are fixedly arranged on opposite surfaces of adjacent lattice beams 1 through step fasteners, and the kicking surface template 11 is horizontally and fixedly arranged between the positioning template I12 and the positioning template II through screws and other steps;
the positioning template I12 and the positioning template II are both sawtooth-shaped templates, the angle of each sawtooth is 90 degrees, and one right-angle side of each sawtooth-shaped template is a horizontal straight side; the kicking face template 11 is horizontally and fixedly arranged at the right angles of the positioning template I12 and the positioning template II through screws and other steps.
Example 5: the partially collapsed high slope lattice beam template system of the embodiment is basically the same as the partially collapsed high slope lattice beam template system of the embodiment 4, and the difference is that:
the template of the drainage ditch 3 comprises inner positioning steel bars, inner steel templates, outer steel templates 13 and outer positioning steel bars 14, the inner steel templates and the outer steel templates 13 are both arranged on the inner side of the slope platform, the inner steel templates and the outer steel templates 13 are parallel to form a drainage ditch template frame, the drainage ditch 3 is formed between the inner steel templates and the lattice girders 1, the bottom ends of the inner positioning steel bars and the outer positioning steel bars 14 are both inserted into rock soil layers of the slope platform and are positioned on the inner side of the drainage ditch template frame, the inner positioning steel bars are positioned on the inner side wall of the inner steel templates, and the outer positioning steel bars 14 are positioned on the inner side wall of the outer steel templates 13;
preferably, the template in escape canal 3 still includes the short reinforcement, the escape canal iron wire, the short ledger, long ledger and escape canal step fastener, evenly be provided with the short reinforcement between the top of interior steel form and outer steel form 13, escape canal iron wire fixed connection is passed through to the bottom of interior steel form and outer steel form 13, interior steel form and outer steel form 13's top is through short ledger fixed connection, the fixed setting of one end of long ledger is on the short ledger and the other end passes through the fixed setting on the longeron of last one-level slope lattice girder of escape canal step fastener.
Example 6: the construction method of the locally collapsed high slope lattice beam is based on a locally collapsed high slope lattice beam template system and comprises the following specific steps:
(1) blasting and excavating a high slope to form a multi-stage step structure, and manually cleaning loose or suspended rocks on the slope surface from top to bottom; backfilling the slope surface with grouted rubble at the over-excavated or large-area collapsed part;
(2) measuring the position, the interval and the size of a side slope frame beam, designing a grid line of the lattice beam, drilling holes at the intersection of a longitudinal beam and a transverse beam of the lattice beam by using an anchor rod drilling machine, installing anchor rods and anchor cables, binding a reinforcement framework to form a longitudinal beam reinforcement cage and a transverse beam reinforcement cage, sleeving an aluminum pipe at the anchor cables and grouting the anchor cables;
(3) cleaning a slope platform, filling redundant fine sand on the step platform into a geotextile bag, pulling wires on the step platform, arranging inner positioning reinforcing steel bars and outer positioning reinforcing steel bars on the inner side of the platform at equal intervals, forming type positioning reinforcing steel bars by the inner positioning reinforcing steel bars and the outer positioning reinforcing steel bars, installing inner steel templates on the inner sides of the inner positioning reinforcing steel bars, forming drainage ditches between the inner steel templates and lattice beams, and installing outer steel templates on the outer sides of the outer positioning reinforcing steel bars;
preferably, the top ends of the inner steel template and the outer steel template are fixed by uniformly arranging short reinforcing steel bars, the bottom ends of the inner steel template and the outer steel template are oppositely pulled and fixedly connected through drainage ditch iron wires, the top ends of the inner steel template and the outer steel template are fixedly bound through short crossbars, one end of a long crossbar is fixedly arranged on the short crossbar, and the other end of the long crossbar is fixedly arranged on a longitudinal beam of the upper grade of slope lattice beam through a drainage ditch step fastening piece;
(4) binding a longitudinal beam top template on the upper surface of a longitudinal beam reinforcement cage, binding a transverse beam top template on the upper surface of a transverse beam reinforcement cage, placing a longitudinal beam side template on the side surface of the longitudinal beam reinforcement cage, fixedly connecting the top end of the longitudinal beam side template with the edge of the longitudinal beam top template by adopting nails, and sealing the joint between the longitudinal beam side template and the side slope by using a soil engineering bag;
(5) drilling holes in the left side and the right side of the positions, about 30cm away from the two sides of the longitudinal beam template supporting wood plate, along the direction of 45 degrees by using an electric drill, obliquely inserting anchoring ribs according to the depth of the holes and the soil condition, fixing cross beams on the two sides of the longitudinal beam top template, installing fixing cross ribs on the upper surfaces of the cross beams, fixedly arranging the top ends of the pull fasteners on the fixing cross ribs, and connecting the bottom ends of the pull fasteners with the anchoring ribs;
preferably, the hook I of the pulling and buckling piece is hung on the anchoring rib I, the top end of the tooth lead screw I is fixed at one end between the long rib I and the long rib II, the hook II is hung on the anchoring rib II, and the top end of the tooth lead screw II is fixed at the other end between the long rib I and the long rib II; the top of the tooth lead screw I sequentially penetrates through a gap between a long rib I and a long rib II of the fixed transverse rib and a through hole I of the mountain-shaped clamp I, and the nut I is sleeved at the top end of the tooth lead screw I and is positioned on the outer side of the mountain-shaped clamp I; the top of the tooth lead screw II sequentially penetrates through a gap between the long rib I and the long rib II and a through hole II of the mountain-shaped clamp II, and the nut II is sleeved at the top end of the tooth lead screw II and is positioned on the outer side of the mountain-shaped clamp II; the nut I and the nut II both adopt a mountain-shaped nut, and clamping end flanges are arranged on two sides of the mountain-shaped nut, so that the nut I and the nut II are convenient to disassemble; the distance between every two adjacent fixed transverse ribs is 1 m-1.5 m;
(6) punching holes at the bottom end of the beam reinforcement cage, wherein the depth depends on the soil quality condition, and bottom support ribs are inserted into the rock-soil layer; punching holes in rock-soil bodies at the top ends of the cross beam reinforcement cages, inserting top anchoring ribs into rock-soil layers, placing cross beam side templates on the side surfaces of the cross beam reinforcement cages and fixedly connecting the top ends of the cross beam side templates with the edges of the cross beam top templates; connecting and screwing the bottom support rib and the top anchoring rib through iron wires to form a simply supported structure; building a platform between the bottom support ribs and the slope surface by using wood plates, and then backfilling holes among the wood plates by using soil engineering bags;
(7) the top pump is arranged in the middle of 16 frame beams, the movable opening plates at the tops of the cross beams and the middle parts of the longitudinal beams are used as casting openings, concrete is cast from bottom to top, and an insertion type vibrating rod is adopted for careful vibration;
(8) after the lattice beam concrete is finally set, dismantling the longitudinal beam template component and the transverse beam template component, fixedly arranging a positioning template I and a positioning template II on opposite surfaces of adjacent lattice beams downwards along a slope surface, horizontally and fixedly arranging a skirting template between the positioning template I and the positioning template II at equal steps, and pouring to finish the construction of a rapid trough;
preferably, the positioning template I12 and the positioning template II are fixedly arranged opposite to the adjacent lattice beam 1 by adopting a step fastening piece, and the kicking surface template 11 is horizontally and fixedly arranged between the positioning template I12 and the positioning template II at equal steps through screws and the like; because the positioning template I12 and the positioning template II are both sawtooth-shaped templates, the angle of the sawtooth is 90 degrees, and one right-angle side of each sawtooth-shaped template is a horizontal straight side; horizontally and fixedly arranging the kicking face template 11 at equal steps at right angles of the positioning template I12 and the positioning template II by using screws, vertically arranging the kicking face template 11 to form a vertical template of each step, embedding the kicking face template into grooves of the positioning template I12 and the positioning template II, and nailing the kicking face template with nails; and pouring step by step to complete the construction of the chute.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a high slope lattice beam template system that partially collapses which characterized in that: the partially collapsed high slope lattice beam system comprises lattice beams (1) arranged along a slope array, a rapid trough (2) is arranged between every two adjacent lattice beams (1), the rapid trough (2) extends downwards to the bottom of the slope along the slope, a plurality of layers of horizontal steps are arranged along the slope of the rapid trough (2), and drainage ditches (3) are arranged on the inner side of the slope platform; the template system of the lattice beam (1) comprises a longitudinal beam template component (4) and a transverse beam template component (5), wherein the longitudinal beam template component (4) and the transverse beam template component (5) are intersected in a lattice-shaped beam template in a same position; the seam between the side template of the longitudinal beam template component (4) and the side slope is sealed by a soil engineering bag;
the longitudinal beam formwork component (4) comprises a longitudinal beam reinforcement cage, a longitudinal beam supporting wood plate and a plurality of groups of fixed transverse ribs (6), a pulling fastener (7) and an anchoring rib (8), wherein the longitudinal beam supporting wood plate is downwards arranged along a side slope to form a longitudinal beam formwork cuboid frame, the longitudinal beam reinforcement cage is arranged in the longitudinal beam formwork cuboid frame, the fixed transverse ribs (6) are horizontally arranged at the top end of the longitudinal beam supporting wood plate, the bottom end of the anchoring rib (8) is obliquely inserted into a side slope rock-soil layer, one end of the pulling fastener (7) is connected with the anchoring rib (8), and the other end of the pulling fastener is fixedly connected with the fixed transverse ribs (6);
each group of pulling fasteners (7) comprises a tooth screw I, a tooth screw II, a bent rib I and a bent rib II, the bent rib I is fixedly arranged at the bottom end of the tooth screw I to form a hook I, the bent rib II is fixedly arranged at the bottom end of the tooth screw II to form a hook II, each group of fixed transverse ribs (6) comprises a long rib I, a long rib II and a short rib, the long rib I and the long rib II are arranged in parallel, the short rib is vertically and fixedly arranged in the middle of the long rib I and the long rib II to form a longitudinal beam reinforcement horizontal frame, and the longitudinal beam reinforcement horizontal frame is horizontally arranged at the top end of a longitudinal beam supporting wood board; every group anchor muscle (8) include anchor muscle I and anchor muscle II, and the bottom of anchor muscle I and anchor muscle II inclines respectively to insert and establishes in the side slope ground layer and lie in the both sides that the longeron supported the plank, and establish on anchor muscle I is hung to crotch I, and the end between long muscle I and long muscle II is fixed on the top of tooth lead screw I, and establish on anchor muscle II is hung to crotch II, and another end between long muscle I and long muscle II is fixed on the top of tooth lead screw II.
2. The partially collapsed high slope lattice beam formwork system of claim 1, wherein: the screw thread fixing device is characterized by further comprising a mountain-shaped clamp I, a mountain-shaped clamp II, a nut I and a nut II, wherein through holes I are formed in the middle of the mountain-shaped clamp I and the middle of the mountain-shaped clamp II, external threads are arranged on the tops of the tooth screw I and the tooth screw II, the mountain-shaped clamp I and the mountain-shaped clamp II are respectively arranged at two ends of the fixed transverse rib (6) and located at the top end of the fixed transverse rib (6), one ends of a long rib I and one end of a long rib II of the fixed transverse rib (6) are respectively located in grooves at the bottom end of the mountain-shaped clamp I, the other ends of the long rib I and the long rib II of the fixed transverse rib (6) are respectively located in grooves at the bottom end of the mountain-shaped clamp II, the top of the tooth screw I sequentially penetrates through a gap between the long rib I and the long rib II and the through hole I of the mountain-shaped clamp I, and the nut I is sleeved on the top end of the tooth screw I and located on the outer side of the mountain-shaped clamp I; the top of the tooth lead screw II sequentially penetrates through a gap between the long rib I and the long rib II and a through hole II of the mountain-shaped clamp II, and the nut II is sleeved on the top end of the tooth lead screw II and is located on the outer side of the mountain-shaped clamp II.
3. The partially collapsed high slope lattice beam formwork system of claim 1, wherein: the distance between the adjacent groups of fixed transverse ribs (6) is 1 m-1.5 m.
4. The partially collapsed high slope lattice beam formwork system of claim 1, wherein: crossbeam template component (5) includes the crossbeam steel reinforcement cage, the brace rod of crossbeam support plank and a plurality of group, the crossbeam support plank sets up along the side slope level and forms crossbeam template cuboid frame, the crossbeam steel reinforcement cage sets up in crossbeam template cuboid frame, the brace rod includes bottom sprag muscle (9) and top anchor lacing wire (10), bottom sprag muscle (9) level is inserted and is established in domatic ground in situ and be located crossbeam support plank lower extreme, top anchor lacing wire (10) are vertical to be inserted and establish in domatic ground in situ and be located crossbeam support plank rear side, bottom sprag muscle (9) and top anchor lacing wire (10) are connected through the iron wire and the iron wire is walked around crossbeam template frame and are formed simple structure, crossbeam external corner template department is fixed on the side slope through T type card.
5. The partially collapsed high slope lattice beam formwork system of claim 4, wherein: still including constructing the muscle, construct the muscle level and insert and establish domatic ground layer and set up in crossbeam steel reinforcement cage.
6. The partially collapsed high slope lattice beam formwork system of claim 1, wherein: the template of rapid trough (2) includes kicking face template (11), locating template I (12) and locating template II, and locating template I (12) and locating template II set up the opposite face in adjacent lattice beam (1) along domatic fixed downwards, and kicking face template (11) equidistance level is fixed to be set up between locating template I (12) and locating template II.
7. The partially collapsed high slope lattice beam formwork system of claim 1, wherein: the template in escape canal (3) is including interior positioning reinforcement, interior steel form, outer steel form (13) and outer positioning reinforcement (14), interior steel form and outer steel form (13) all set up at side slope platform inboard and interior steel form and outer steel form (13) parallel formation escape canal template frame, form escape canal (3) between interior steel form and lattice beam (1), the bottom of interior positioning reinforcement and outer positioning reinforcement (14) is all inserted and is established in the ground intraformational and be located escape canal template frame inboard of side slope platform, interior positioning reinforcement is located the inside wall of interior steel form, outer positioning reinforcement (14) are located the inside wall of outer steel form (13).
8. The construction method of the partially collapsed high slope lattice beam is characterized in that based on any one of claims 1-7, the method comprises the following specific steps:
(1) blasting and excavating a high slope to form a multi-stage step structure, and cleaning loose or suspended rocks on the slope surface from top to bottom;
(2) measuring the position, the interval and the size of a side slope frame beam, designing a grid line of a lattice beam, installing an anchor rod and an anchor cable at the intersection of a longitudinal beam and a transverse beam of the lattice beam, binding a reinforcement cage to form a longitudinal beam reinforcement cage and a transverse beam reinforcement cage, and grouting the anchor cable;
(3) cleaning a slope platform, arranging inner positioning steel bars and outer positioning steel bars on the inner side of the platform, installing inner steel templates on the inner sides of the inner positioning steel bars, forming drainage ditches between the inner steel templates and lattice beams, and installing outer steel templates on the outer sides of the outer positioning steel bars;
(4) binding a longitudinal beam top template on the upper surface of a longitudinal beam reinforcement cage, binding a transverse beam top template on the upper surface of a transverse beam reinforcement cage, placing a longitudinal beam side template on the side surface of the longitudinal beam reinforcement cage, and fixedly connecting the top end of the longitudinal beam side template with the edge of the longitudinal beam top template;
(5) obliquely inserting anchoring ribs into two sides of a supporting board of the longitudinal beam formwork, fixing cross beams on two sides of a top formwork of the longitudinal beam, arranging fixing cross ribs on the upper surfaces of the cross beams, fixedly arranging the top ends of the pulling and buckling pieces on the fixing cross ribs, and connecting the bottom ends of the pulling and buckling pieces with the anchoring ribs;
(6) inserting bottom support bars into the rock-soil layer at the bottom end of the beam reinforcement cage; inserting top anchoring ribs into the rock-soil layer at the top end of the cross beam reinforcement cage, placing a cross beam side formwork on the side face of the cross beam reinforcement cage, and fixedly connecting the top end of the cross beam side formwork with the edge of the cross beam top formwork; connecting and screwing the bottom support rib and the top anchoring rib through iron wires to form a simply supported structure;
(7) pouring concrete from bottom to top by taking the top of the cross beam and the middle of the longitudinal beam as pouring notches;
(8) after the lattice beam concrete is finally set, dismantling the longitudinal beam template component and the cross beam template component, fixedly arranging the positioning template I and the positioning template II on opposite surfaces of adjacent lattice beams downwards along the slope, then horizontally and fixedly arranging the skirting templates between the positioning template I and the positioning template II at equal steps, and pouring to finish the construction of the rapid trough.
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