CN115704218A - Method for hole forming and feeding of vibroflotation gravel pile machine - Google Patents
Method for hole forming and feeding of vibroflotation gravel pile machine Download PDFInfo
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- CN115704218A CN115704218A CN202110921364.3A CN202110921364A CN115704218A CN 115704218 A CN115704218 A CN 115704218A CN 202110921364 A CN202110921364 A CN 202110921364A CN 115704218 A CN115704218 A CN 115704218A
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Abstract
The invention discloses a method for hole forming and feeding of a vibroflotation gravel pile machine, which comprises the following steps: automatically guiding the vibroflotation gravel pile machine and aligning a vibroflotation device system to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine; after the vibroflot system automatically aligns to a pile point to be constructed, the vibroflot system performs vibroflot downwards on the stratum of the pile point to be constructed according to the verticality requirement to form a vertical pile hole; after the vertical pile hole is formed, automatically feeding materials into the pile hole through a loader to form the even and continuous vibro-replacement gravel pile meeting the verticality requirement. According to the method, the vibroflotation gravel pile machine can be automatically and accurately positioned at the pile point to be constructed, construction can be carried out at night or under the condition of insufficient illumination, the efficiency is high, the safety is good, the verticality of the pile hole in vibroflotation construction meets the requirement, automatic feeding and dynamic real-time measurement of the weight of stone materials can be realized, the operation is simple and convenient, the measurement is accurate, and the work efficiency is improved.
Description
Technical Field
The invention relates to the technical field of pile machine construction, in particular to a method for hole forming and feeding of a vibroflotation gravel pile machine.
Background
The vibroflotation method is a foundation treatment method, and a loose foundation soil layer is vibrated and compacted under the combined action of horizontal vibration of a vibroflotation gravel pile machine vibroflotation device and high-pressure water or high-pressure air; or after forming holes in the foundation soil layer, backfilling hard coarse particle materials with stable performance, and forming a composite foundation by using a reinforcement (vibro-impact pile) formed by vibration compaction and the surrounding foundation soil.
In the process of construction by using the vibroflotation method, different hardness strata adopt different construction methods, for example, the invention patent with the publication number of CN104372788A describes in detail a vibroflotation gravel pile machine and a construction method suitable for the stratum with a deep covering layer of more than 50m, but in the construction method of the patent, the vibroflotation gravel pile machine adopts the prior art to carry out pile machine positioning, pile hole construction and hole filling construction.
When the pile machine in the prior art is in place, the pile point position is planned according to a construction site, then an operator holds a positioning device by hand, the pile point to be constructed is positioned and marked (generally, an inserted rod mark), and finally a constructor visually observes the position of a vibroflotation device, and the vibroflotation device is moved to the positioning point to be constructed by moving the vibroflotation gravel pile machine. According to the flow, the traditional vibroflotation gravel pile machine can realize pile point positioning only by the mutual matching of operators and constructors and is limited by the eyesight of the constructors, artificial visual errors exist, and especially, the visual limitation can be caused by insufficient construction or illumination at night, the alignment efficiency is low, the alignment error is large, and potential safety hazards exist.
In the prior art, during pile hole construction, vibroflotation construction is carried out by adopting a method of connecting a plurality of sections of telescopic guide rods with vibroflots. Because the telescopic guide rod system is in rigid connection, the guide rod and the vibroflot system can still keep vertical when encountering softer strata, and the deflection of a pile hole caused by sideslip of the vibroflot is avoided. However, when hard layers, particularly large gravels are encountered, the vibroflot adopting the structure inevitably generates a 'sideslip' phenomenon, so that the pile hole is deflected. When the deflection is light, if the inclined pile hole is not repaired, the guarantee coefficients of the uniformity and the compactness of the pile diameter of the vibro-replacement gravel pile are influenced, so that the safety of the subsequently formed vibro-replacement gravel pile is poor; if the inclined pile hole is repaired, the vibroflot stops vibroflot construction and repairs the hole in time, which inevitably leads to the prolongation of the construction period and the increase of the construction cost. If the deflection is heavy, only the whole pile can be discarded, and the construction progress and the cost are seriously influenced.
During the downthehole filler of prior art, the mode of rubble filling generally divide into: hopper charging, conveyor belt charging, loader charging and the like. The loading machine is most mobile in feeding mode and has multiple applicable scenes. However, the loader feeds materials in a one-to-one correspondence mode, and a huge leak exists, namely, whether broken stones are really added into the hole after the loader shovels materials cannot be judged. A common supervision method is to add a monitoring camera to a construction site, but the supervision mode has the influence of human factors. In order to avoid the situation, two methods are mainly used for weighing the stone in the traditional construction: firstly, the number of the buckets of the loader is counted manually before vibroflotation, and secondly, a special metering weighing platform is manufactured. The former is too rough, and the latter must put the measurement platform of weighing beside the stake hole, because the large-scale equipment bundle pile beside the stake hole, the operation is inconvenient, is more unfavorable for safety. The hole filler is a parameter closely related to the construction quality, so that the inaccurate quality of the filler causes resource waste, the poor continuity or no continuity of the vibroflotation pile formed by vibroflotation construction causes pile failure and needs to be constructed again, and the re-construction of deep hole vibroflotation causes huge economic loss.
Disclosure of Invention
The invention aims to solve the problems and provides a method for forming and feeding holes by using a vibroflotation gravel pile machine.
In order to achieve the purpose, the method for forming the hole and feeding the hole by the vibroflotation gravel pile machine comprises the following steps:
automatically guiding the vibroflotation gravel pile machine and aligning a vibroflotation device system to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine;
after the vibroflot system automatically aligns to a pile point to be constructed, the vibroflot system performs vibroflot downwards on the stratum of the pile point to be constructed according to the verticality requirement to form a vertical pile hole;
after the vertical pile hole is formed, automatically feeding materials into the pile hole through a loader to form the even and continuous vibro-replacement gravel pile meeting the verticality requirement.
Wherein, according to waiting to be under construction stake point and vibroflotation rubble stake machine's longitude and latitude information, the automatic guidance vibroflotation rubble stake machine and make its vibroflotation system aim at waiting to be under construction stake point and include:
automatically guiding the vibroflotation gravel pile machine to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine;
after the vibroflotation gravel pile machine is automatically guided to the pile point to be constructed, the vibroflotation device system on the vibroflotation gravel pile machine is aligned to the pile point to be constructed.
Wherein, make and shake towards the broken stone stake machine on shake towards the ware system and aim at the stake point of waiting to be under construction and include:
acquiring the position relation between a positioning antenna and a vibroflotation system on the vibroflotation gravel pile machine so as to acquire the real-time position information of the vibroflotation system according to the real-time position information of the positioning antenna;
comparing the real-time position information of the vibroflotation system with the position information of the pile point to be constructed to obtain the distance information between the vibroflotation system and the pile point to be constructed;
and aligning a vibroflot system on the vibroflot stone pile machine to a pile point to be constructed according to the acquired distance information.
The method comprises the step of respectively carrying out initial positioning on the positioning antenna and the vibroflot system on the vibroflot pile machine through positioning equipment.
The method comprises the following steps that a drill rod system of the vibroflotation gravel pile machine and a mast of a hoisting system are arranged in parallel, so that the vibroflotation device system connected with the bottom of the drill rod system is parallel to the mast.
Preferably, positioning the drill pipe system parallel to a mast of the hoist system such that the vibroflot system coupled to the bottom of the drill pipe system is parallel to the mast comprises:
in the process of lowering the drill rod system and the vibroflotation device system by using the hoisting system, the verticality of the drill rod system relative to the host is controlled so that the vibroflotation device system lowered by the drill rod system is parallel to the mast.
Further, the step of vibrating and punching the stratum of the pile point to be constructed downwards by the vibroflot system with the required verticality further comprises the step of detecting and adjusting the verticality of the main machine of the mast on the horizontal plane in real time when the vibroflot system is used for vibrating and punching construction, so that the verticality of the mast meets the requirements.
Preferably, after forming the stake hole that accords with the straightness requirement that hangs down, include to the downthehole automatic feeding of stake through the loader:
after pile holes meeting the verticality requirement are formed, acquiring first weight information of a plurality of loaders when stones are loaded and position information of the loaders in a polling mode;
controlling the loaders in the pile hole feeding area to sequentially feed the loaded stone materials into the pile holes according to the obtained position information of the multiple loaders, and obtaining second weight information of the loaders after feeding the stone materials;
and obtaining the weight of the stone thrown into the pile hole by each bucket of each loader according to the obtained first weight information and the second weight information of each loader, and accumulating the weight of the stone thrown into the pile hole by the multiple loaders to obtain the total weight of the stone thrown into the pile hole by the multiple loaders.
Further, after first weight information of the plurality of loaders loaded with stones and position information of the plurality of loaders are obtained, the method further comprises the step of respectively sending the first weight information and the position information of the plurality of loaders to the remote vibroflotation construction management system.
Preferably, before obtaining the first weight information of the loader when loaded with stone, the method further comprises the step of calibrating the weight of the unloaded loader.
Preferably, the weight calibration of an empty loader comprises the step of mounting a detection element on the loader.
Compared with the prior art, the method for hole forming and feeding of the vibro-replacement stone pile machine has the following advantages:
1. according to the method, the positioning guide system is adopted to accurately position the vibroflotation gravel pile machine and the pile hole to be constructed in real time respectively, then the vibroflotation gravel pile machine and the pile hole to be constructed are transmitted to a graphical interface of the pile machine, a driver is guided to accurately position, only one driver is needed in the whole process to finish accurate positioning of the vibroflotation gravel pile machine, measuring personnel are not needed to be matched, manpower is saved, the limitation of the vision of the driver is avoided, the problems of low efficiency and safety at night or under the condition of insufficient illumination are solved, the alignment efficiency is high, and the alignment error is small. In addition, the whole construction process realizes real-time data sharing among a construction unit, an on-duty engineer and a supervision room, so that the synchronization between construction and supervision is realized, the coordination cost is reduced to the maximum extent, and the construction efficiency is greatly improved.
2. The method can realize automatic feeding and dynamic real-time metering of stones in the construction of the vibro-replacement stone pile machine, has simple and convenient operation and accurate metering, realizes synchronization of local and remote weighing data, automatically monitors, effectively ensures quality, improves work efficiency and saves manpower.
3. The method of the invention utilizes the loader to measure and obtain the weight of the stone material and transmits the weight to the remote vibroflotation construction management system in real time, thereby realizing the real-time monitoring of the loading weight of the loader, realizing the automatic matching between the loader and the pile holes through position comparison, determining the pile hole to which the stone material unloaded by the loader is put, effectively avoiding the multi-marking and the omission marking of the stone material in the same pile hole, and ensuring the dynamic real-time automatic measurement of the stone material.
4. According to the method, in the process of vibroflotation construction of the deep complex foundation with the depth of more than 50 meters by the vibroflotation system, the verticality of the mast beyond the verticality requirement can be adjusted in time, so that the vibroflotation system can vibroflotation downwards the construction stratum with the verticality meeting the requirement and form vibroflotation gravel pile holes, the uniformity and the compactness of the pile diameter of the formed vibroflotation gravel pile are ensured, the security of the vibroflotation gravel pile is improved, the construction period is effectively shortened, and the construction cost is reduced.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a perspective view of one perspective of a vibro-replacement pile machine in the method of the present invention;
FIG. 2 is a perspective view of another perspective of a vibro-replacement pile machine in the method of the present invention;
FIG. 3 is a partial enlarged view of a clasping connection section of the drill rod verticality maintaining device of the present invention;
FIG. 4 is a schematic view of a first construction of the device for maintaining the verticality of a drill rod according to the present invention;
FIG. 5 is a schematic view of a second construction of the device for maintaining the verticality of a drill rod according to the present invention;
FIG. 6 is a schematic structural view of the drill pipe system of the present invention;
FIG. 7 is a partial schematic view of the drill pipe system of the present invention;
FIG. 8 is a schematic view of the connection of the working section of the drill pipe system of the present invention to the vibroflot system;
FIG. 9 is a first schematic block diagram of the perpendicularity adjustment principle of the present invention;
FIG. 10 is a second schematic block diagram of the perpendicularity adjustment principle of the present invention;
FIG. 11 is a schematic block diagram of a mast perpendicularity maintaining arrangement of the present invention;
FIG. 12 is a schematic block diagram of the perpendicularity detection mechanism of the present invention;
FIG. 13 is a flow chart of hole forming and feeding of the vibro-replacement stone pile machine of the present invention;
FIG. 14 is a schematic diagram of the positioning of the antenna relative to the vibrator system;
FIG. 15 is a schematic view of the positioning antenna and vibroflot system in real time positioning;
FIG. 16 is a display of an initial interface for positioning of the vibro-replacement pile driver;
FIG. 17 is an interface display view of the vibroflot system positioned by the vibroflot pile driver in alignment with the pile point to be constructed;
FIG. 18 is a drawing showing an operation interface of each pile hole of the vibroflotation gravel pile machine;
FIG. 19 is a schematic illustration of a loader, vibro-replacement stone stake machine, remote control system;
FIG. 20 is a flow chart of the remote control system controlling the loader to feed material into the pile hole;
FIG. 21 is a schematic view of the loader communicating with a remote control system;
fig. 22 is a flow chart of weighing when the loader drops stone into the pile hole.
Detailed Description
As shown in fig. 1 and fig. 2, which are perspective views of two views of a vibroflotation gravel pile machine used in the method of the present invention, it can be seen that the vibroflotation gravel pile machine of the present invention includes a hoisting system 100, a drill rod system 200, a vibroflotation system 400 and an automatic feeding system 500.
The hoisting system 100 comprises a main machine 101 of the vibro-replacement pile machine, a mast 102 connected with the main machine, and a main hoisting device 501 arranged at the rear end of the main machine 101, wherein the drill rod system 200 is hoisted through a steel wire rope of the main hoisting device 501 and the mast 102, so that the drill rod system is vertically arranged under the action of self weight.
The main body 101 is provided with an automatic feeding system 500, which is installed at the rear part of the main body 101 of the hoist system 100 and can be used as a counterweight of the main body 101. The automatic feeding system 500 includes an air pipe winding device 502, a cable winding device 503, and a water pipe winding device 504, and these three devices and the main winding device 501 are set to be fed in synchronization.
The drill pipe system 200 has a connection section 201 at an upper portion for connection with a wire rope of a main winding device 501, a support section 202 at a middle portion, and a working section 203 at a lower portion for connection with a vibroflot system 400 (in general, as shown in fig. 8, a shock absorbing assembly is disposed between the working section 203 and the vibroflot system 400). The drill pipe system 200 employs a prior art telescoping guide rod, allowing the axial length of the drill pipe system 200 to be adjusted to change the down or up position of the vibroflot system relative to the ground. As shown in fig. 6 and 7, the drill rod system 200 has multiple layers of casing pipes sequentially sleeved from inside to outside, the connecting section 201 is a top layer casing pipe, the working section 203 is a bottom layer casing pipe, and the supporting section 202 comprises one or more layers of middle casing pipes. Wherein, two adjacent layers of sleeves can be connected together by adopting the connecting structure in the prior art, so that the two adjacent layers of sleeves can slide axially smoothly and can be prevented from twisting mutually. In operation, the number and length of the multiple layers of casing pipes in the drill pipe system can be determined according to the use requirement, for example, more than 4 layers of casing pipes can be adopted, and the length of each layer of casing pipe can be 18-25 meters (the length of the top layer of casing pipe can be longer). When the vibroflotation gravel pile machine is used, the length of the multilayer sleeve of the drill rod system can be extended or shortened, and when the multilayer sleeve of the telescopic guide rod extends out completely, the total length of the telescopic guide rod can reach 72 meters or even longer, so that the vibroflotation gravel pile machine can be used for vibroflotation hole forming on a stratum with the depth of more than 50 meters. It should be noted that the coaxiality of every two adjacent layers of sleeves in connection is the same, that is, the lengths of the multiple layers of sleeves are extended and then coaxial, so that the sleeves of each layer are perpendicular to the pile hole in the vibroflotation construction process.
Referring to fig. 13, when the vibroflotation construction is performed on the ultra-deep complex stratum by using the vibroflotation gravel pile machine, the invention provides a vibroflotation construction method by using the vibroflotation gravel pile machine, which comprises the following steps:
according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine, automatically guiding the vibroflotation gravel pile machine and enabling the vibroflotation system to be aligned with the pile point to be constructed;
after the vibroflot system automatically aligns the pile point to be constructed, the formation of the pile point to be constructed is vibroflot downwards with the verticality meeting the requirement by the vibroflot system so as to form a pile hole meeting the verticality requirement;
after the pile hole meeting the verticality requirement is formed, automatically feeding materials into the pile hole through a loader to form the uniformly and continuously vibro-replacement stone column meeting the verticality requirement.
The method for forming holes and feeding by using the vibroflotation gravel pile machine is described in detail below.
S100, automatically guiding the vibroflotation gravel pile machine and aligning a vibroflotation device system to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine
In order to make the vibroflotation gravel pile machine automatically locate at the pile point to be constructed without the cooperation of a measurer and a driver driving the vibroflotation gravel pile machine, the alignment error is small, and the vibroflotation gravel pile machine is not influenced by night or insufficient illumination conditions, before vibroflotation construction of the vibroflotation gravel pile machine, a vibroflotation device system of the vibroflotation gravel pile machine automatically aligns at the pile point to be constructed according to the position information of the pile point to be constructed, and the vibroflotation device system comprises:
s101, before vibroflotation construction of a vibroflotation gravel pile machine, automatically guiding the vibroflotation gravel pile machine to a pile point to be constructed according to the pile point to be constructed and longitude and latitude information of the vibroflotation gravel pile machine;
before vibroflotation construction is carried out by adopting a vibroflotation gravel pile machine, determining the longitude and latitude information of each pile point to be constructed, positioning each pile point to be constructed (the positioning method adopts the prior art method), and obtaining the position information of each pile point to be constructed, wherein the position information of each pile point to be constructed comprises: and the pile point position number, the coordinate information, the design depth, the pile diameter and other information, wherein the coordinate information of the pile point in the construction plane coordinate system can be obtained through the longitude and latitude information of the pile point.
The method comprises the steps of determining a current to-be-constructed pile point to be constructed from a plurality of to-be-constructed pile points, then, obtaining coordinate information of a vibroflotation gravel pile machine in a construction plane coordinate system by a positioning guide system (such as a Beidou positioning system) through longitude and latitude information corresponding to the vibroflotation gravel pile machine (similarly, the longitude and latitude information of the vibroflotation gravel pile machine is obtained), automatically guiding the vibroflotation gravel pile machine (provided with a positioning antenna on the vibroflotation gravel pile machine) to the to-be-constructed pile point, adopting the prior art for the guiding process, and adding the equipment number of the vibroflotation gravel pile machine to position information of the current to-be-constructed pile point.
The operation interface of each pile hole of the vibro-replacement stone pile machine can be shown in fig. 18, wherein the piles with the serial numbers of 0105 and 0106 in the drawing are constructed piles, the rest are non-constructed piles, and the pile point to be constructed is one of the non-constructed piles.
After the position information of the pile point to be constructed is obtained, the vibroflotation gravel pile machine is guided to move left and right in the front and back direction through the positioning guide system, so that the vibroflotation gravel pile machine is automatically guided to the pile point to be constructed.
The vibroflotation construction management system of the remote central control room is communicated with the vibroflotation gravel pile machine on the construction site in a wired or wireless mode so as to control the vibroflotation gravel pile machine to execute corresponding actions and monitor the action process and results of the vibroflotation gravel pile machine. When the vibroflotation construction management system is implemented, a set of PLC or a singlechip ARM program communication port (RS 485 or 232 port) is designed on the vibroflotation construction management system, the data type of a serial port on an onboard computer of the vibroflotation gravel pile machine can be remotely inquired through programming of the ARM singlechip or the PLC, an inquiry instruction is sent through analyzing a data code and coding, and the inquiry instruction is sent out through a remote data transmission radio station at a certain speed in a data format. And install a miniwatt wireless machine at the machine of vibroflotation rubble stake machine and carry the number radio station on the aircraft computer serial ports, machine carries the number radio station channel and the data format all is unanimous with the long-range number radio station of construction management system side, this machine carries the number radio station and receives the instruction that PLC or the long-range number radio station of singlechip serial ports sent in the construction management system and through decoding the back, by machine carries computer identification, afterwards, according to singlechip or PLC's instruction, reply the data that will transmit, carry out data exchange through serial ports and long-range number radio station. The remote data transmission radio station (full duplex, receiving and transmitting integration) on the remote construction management system receives the signal sent by the airborne data transmission radio station on the vibro-replacement pile machine, analyzes the required signal by decoding and stripping the encrypted signal, calculates by a decoding circuit and a program, and displays and records in the construction management system.
S102, after the vibroflotation gravel pile machine is automatically guided to a pile point to be constructed, a vibroflotation system on the vibroflotation gravel pile machine is aligned to the pile point to be constructed;
after the vibroflotation gravel pile machine is guided to the pile point to be constructed by the positioning and guiding system, the vibroflotation system on the vibroflotation gravel pile machine is not always aligned with the pile point to be constructed, namely, the position of the vibroflotation system is not always within the position error range of the pile point to be constructed, so that the vibroflotation gravel pile machine needs to be automatically guided to move left and right in the front-back direction until the position of the vibroflotation system is within the position error range of the pile point to be constructed. The method for aligning the vibroflotation system on the vibroflotation gravel pile machine to the pile point to be constructed comprises the following steps:
acquiring the position relation between a positioning antenna and a vibroflotation system on the vibroflotation gravel pile machine so as to acquire the real-time position information of the vibroflotation system according to the real-time position information of the positioning antenna;
comparing the real-time position information of the vibroflotation system with the position information of the pile point to be constructed to obtain the distance information between the vibroflotation system and the pile point to be constructed;
and aligning a vibroflot system on the vibroflot stone pile machine to a pile point to be constructed according to the acquired distance information.
When the position relation between the positioning antenna and the vibroflotation device system on the vibroflotation gravel pile machine is obtained, initial positioning needs to be respectively carried out on the positions of the positioning antenna and the vibroflotation device system on the vibroflotation gravel pile machine through positioning equipment so as to determine the position relation between the positioning antenna and the vibroflotation device system:
the method comprises the steps that initial positioning is respectively carried out on the vibroflotation system and the positioning antenna of the vibroflotation gravel pile machine through positioning equipment, and initial position information of the vibroflotation system and initial position information of the positioning antenna are obtained;
determining the distance between the vibroflotation system and the positioning antenna according to the initial position information of the vibroflotation system and the positioning antenna;
and determining the linear distance between the installation position of the positioning antenna and the vibroflotation system and the included angle between the connecting line of the vibroflotation system and the positioning antenna and the north through the distance between the positioning antenna and the vibroflotation system.
And the obtaining of the real-time position information of the vibroflot system according to the real-time position information of the positioning antenna comprises:
acquiring the rotation angle of the vibro-replacement stone pile machine facing the north;
and according to the acquired real-time position information of the positioning antenna, determining the real-time position information of the vibroflotation system through the real-time position information of the positioning antenna, the distance between the vibroflotation system and the positioning antenna and the rotation angle of the vibroflotation gravel pile machine to the north.
During implementation, on the vibroflotation gravel pile machine, the vibroflotation system and the positioning antenna installation position are initially positioned by using handheld positioning equipment (equipment in the prior art can be adopted), the position relation is determined, and when construction is started, the real-time coordinates of the vibroflotation system are obtained through calculation by taking the real-time positioning antenna position information as the basis, and all the coordinates are coordinates in a plane coordinate system.
The vibroflotation system and the positioning antenna mounting position on the vibroflotation gravel pile machine are shown in fig. 14, wherein G is the positioning antenna mounting position, M is the vibroflotation motor mounting position of the vibroflotation system, and the vibroflotation motor position represents the position of the vibroflotation system in construction.
When the vibroflotation system and the positioning antenna are initially positioned (see fig. 14), the position relationship can be calculated by the following formula:
a＝x 0 -x′ 0 (1)
b＝y 0 -y′ 0 (2)
in the above formulas:
rho-linear distance between the installation position of the positioning antenna and the vibroflotation motor;
and the angle between the connecting line of the alpha-vibroflotation motor and the positioning antenna and the north is included.
When positioning the vibroflotation system and the positioning antenna in real time (see fig. 15), the vibroflotation system position calculation can be obtained by the following formula:
x′ 1 ＝x1+acosβ+bsinβ (5)
y′ 1 ＝y1+bcosβ-asinβ (6)
in the formula:
x1, y 1-real-time positioning information acquired by a positioning antenna;
x′ 1 ，y′ 1 -vibroflotation motor real-time position information;
beta-the angle of rotation of the vibroflotation gravel pile machine.
Further, when the vibroflotation system on the vibroflotation gravel pile machine is aligned to the pile point to be constructed according to the acquired distance information, the real-time position information of the vibroflotation system and the position information of the pile point to be constructed are also displayed through a graphical interface (as shown in fig. 16 and 17). And after the real-time position information of the vibroflotation system is obtained, the position information of the pile point to be constructed is taken as a target point, and the navigation movement of the vibroflotation gravel pile machine is displayed through a graphical interface according to the position and distance relation of the vibroflotation system relative to the target point so as to enable the vibroflotation system to aim at the direction information of the pile point to be constructed.
The distance relation between the vibroflotation gravel pile machine and the pile point to be constructed is visually displayed in a graphic mode by taking Beidou positioning information as a positioning basis, and the vibroflotation gravel pile machine is guided to move left and right around by constructors according to clear distance prompt information and is aligned to the pile point to be constructed by a vibroflotation device system. After the positioning is finished, the graphic interface prompts that the alignment is finished. The whole construction process can completely realize night construction, such as paying off and point finding, so that the construction efficiency is improved, and the construction period is shortened.
To sum up, location guide system shakes towards rubble stake machine and treats that construction pile hole carries out real-time accurate location respectively, then transmits it to stake machine graphical interface on, guides the driver to carry out accurate location, and whole process only needs the driver alone can accomplish the accurate of shaking towards rubble stake machine and take one's place, does not need the measurement personnel cooperation, has saved the manpower, and does not receive the restriction of driver eyesight, has solved inefficiency and the safety problem under night or the not enough condition of illumination, and counterpoint efficient, it is little to counterpoint the error. In addition, the whole construction process realizes real-time data sharing among a construction unit, an on-duty engineer and a supervision room, so that the synchronization between construction and supervision is realized, the coordination cost is reduced to the maximum extent, and the construction efficiency is greatly improved.
S200, after the vibroflot system automatically aligns to a pile point to be constructed, the vibroflot system performs vibroflot downwards on the stratum of the pile point to be constructed according to the verticality requirement to form a vertical pile hole;
after the vibroflotation system is aligned with the pile point to be constructed, namely the position of the vibroflotation system is within the position error range of the pile point to be constructed, the verticality of the vibroflotation system on the vibroflotation gravel pile machine is adjusted, so that the vibroflotation system can carry out vibroflotation construction on the pile point to be constructed with the verticality meeting the requirement, and an ultra-deep pile hole with the verticality requirement is formed in a deep and complex stratum.
In the process of vibroflotation pore-forming on a complex stratum with the depth of more than 50 meters by the vibroflotation device of the vibroflotation device system 200, because a stratum with the depth of more than 50 meters is a deep covering layer, the upper part is soft and the lower part is hard, the gravel with large particle size is more, the upper part of the upper soft finger is a soft interlayer (such as lake-phase sedimentary silty clay), the lower part of the lower hard finger is a relatively compact hard layer (such as a sand layer or a sand layer with gravel), the vibroflotation device works under the environments of broken stone, sand and slurry, if the vibroflotation device meets a hard stratum, the vibroflotation device is very easy to deflect in the vibroflotation process, so that pile holes deflect, which causes construction failure and huge loss. Especially when the construction is carried out on the stratum such as the medium-coarse sand layer in the strong earthquake high-rise zone, the inclination of the pile body caused by the inclination of the pile hole causes the immeasurable loss. In order to avoid the situation that the vibroflotation device deflects in the vibroflotation process, the drill rod system and the mast of the hoisting system are arranged in parallel, so that the vibroflotation device system connected with the bottom of the drill rod system is parallel to the mast, and the verticality of the vibroflotation device system can be ensured by ensuring the verticality of the mast; when the vibroflotation hole forming construction is carried out through the vibroflotation device, the verticality of the mast relative to the host machine on the horizontal plane is detected in real time, and the verticality of the mast is correspondingly adjusted according to the detection result, so that the verticality of the mast is ensured to meet the requirement, and the vibroflotation device arranged in parallel with the mast can vibroflotation downwards the construction stratum with the verticality meeting the requirement and form a vibroflotation gravel pile hole.
Specifically, the vibroflotation device vertical holding system 300 ensures that the vibroflotation device can vibroflotation downwards towards the construction stratum with the required verticality and form vibroflotation gravel pile holes.
As shown in fig. 1-5, the vibroflot vertical retention system 300 of the present invention comprises: the mast verticality maintaining device is used for enabling the verticality of the mast relative to the host machine on the horizontal plane to meet the requirement during the vibroflotation hole forming construction of the vibroflotation device, so that the vibroflotation device can vibroflotation downwards form vibroflotation gravel pile holes on the pile points to be constructed of the construction stratum with the verticality meeting the requirement; and the drill rod verticality maintaining device is used for enabling the drill rod system to be arranged in parallel to a mast of the hoisting system so that the vibroflot system connected with the bottom of the drill rod system is parallel to the mast.
As shown in fig. 11, the mast verticality maintaining device comprises: the perpendicularity detection mechanism is used for detecting and processing the perpendicularity of the mast relative to the host machine on the horizontal plane in real time when vibroflotation hole forming construction is carried out through the vibroflotation device; the mast angle adjusting mechanism is used for correspondingly adjusting the perpendicularity of the mast according to the detection result of the perpendicularity detecting mechanism so as to enable the perpendicularity of the mast to meet the requirement.
The perpendicularity detection mechanism adopted by the invention is shown in fig. 12 and comprises the following modules: the inclination angle detection module is used for detecting the inclination angle of the mast relative to the host arranged on the horizontal plane in real time to obtain the inclination angle of the mast relative to the host; after obtaining the inclination angle of the mast relative to the host computer, through calculating to obtain the deviation data of the perpendicularity of the mast relative to the host computer (abbreviated as mast perpendicularity); the verticality comparison module is used for determining whether the verticality of the mast needs to be adjusted according to the obtained deviation data of the verticality of the mast; and the sending module is used for sending the comparison result to the controller so that the controller can control the mast angle adjusting mechanism to execute corresponding actions to adjust the perpendicularity of the mast according to the comparison result.
Wherein the inclination angle detection module is arranged inside the mast (not shown in the figure), preferably, the inclination angle detection module is arranged inside the mast near 1/5 of the lower end to detect the inclination angle of the mast more accurately. The inclination angle detection module can adopt an inclination angle sensor, and can also adopt other elements which can detect the inclination angle and process the data in the prior art.
The deviation data calculation module can obtain the deviation data in a manner shown in fig. 9, that is, after the inclination angle detection module detects the perpendicularity of the mast in real time, the inclination angle of the mast relative to the host is obtained, and then the inclination angle is subtracted by 90 degrees, so that the perpendicularity deviation value of the mast relative to the host is obtained.
Or, the deviation data calculation module may also obtain the deviation data in a manner as shown in fig. 10, that is, after the inclination detection module detects the perpendicularity of the mast in real time, the inclination angle of the mast relative to the host is obtained, and then the absolute value is obtained after subtracting 90 degrees from the inclination angle, so as to obtain the absolute value of the perpendicularity deviation value of the mast relative to the host.
After obtaining the deviation data of the mast verticality, a comparison module determines whether the mast verticality needs to be adjusted, the comparison module compares the obtained deviation data of the mast verticality with a preset threshold interval of the mast verticality set in advance to obtain a corresponding comparison result, and the comparison process comprises the following steps: after real-time deviation data of the perpendicularity of the mast is obtained, whether the deviation data is within a preset threshold interval is judged; if the deviation data exceeds a preset threshold interval, the perpendicularity of the mast needs to be adjusted, and relevant information of the direction and the size of the mast needing to be adjusted is determined; if the deviation data does not exceed the preset threshold interval, the perpendicularity of the mast does not need to be adjusted. The preset threshold interval represents a range of maximum and minimum angles at which the mast can be tilted relative to the vertical plane. The above-described data processing process is performed by a program stored in advance.
After the comparison result is obtained by the comparison module, the comparison result is sent to the controller by the sending module, and the controller controls the mast angle adjusting mechanism to execute corresponding actions according to the comparison result so as to adjust the perpendicularity of the mast. Namely, when the detection result of the perpendicularity detection mechanism indicates that the mast perpendicularity needs to be correspondingly adjusted so as to enable the mast perpendicularity to meet the requirement, namely the deviation data exceeds a preset threshold interval, and the mast perpendicularity needs to be adjusted so as to meet the requirement, the controller controls the mast angle adjustment mechanism to execute corresponding actions so as to adjust the mast perpendicularity to meet the requirement. The controller is a PLC controller.
It should be noted that, when the perpendicularity of the mast needs to be adjusted, the controller firstly controls the vibroflotation system to stop vibroflotation construction, lifts the vibroflotation system through the hoisting system, and then controls the mast angle adjusting mechanism to execute corresponding actions so as to adjust the perpendicularity of the mast to meet the requirements.
Wherein, the mast angle adjusting mechanism of the invention includes: a cylinder body of the deviation-correcting oil cylinder is arranged on the main machine; and the proportional valve is connected with the deviation rectifying oil cylinder. During design, the verticality of the masts can be adjusted through one deviation rectifying oil cylinder, the verticality of the masts can also be adjusted through a pair of deviation rectifying oil cylinders, and the verticality of the masts can also be adjusted through a plurality of pairs of deviation rectifying oil cylinders. The proportional valve controls the action of the deviation-correcting oil cylinder, the proportional valve is connected with the PLC, and the PLC feeds back a signal to control the opening size and the direction of the proportional valve in a closed loop mode, so that the deviation-correcting oil cylinder is controlled to adjust the inclination direction and the inclination size of the mast, and the verticality of the mast is kept within a preset threshold interval meeting the requirements.
Because the verticality of the mast meets the requirement, the vibroflot can downwardly vibroflot on a construction stratum with the verticality meeting the requirement when the vibroflot carries out vibroflot hole-forming construction, and a vibroflot gravel pile hole meeting the verticality requirement is formed.
The invention not only ensures that the verticality of the mast meets the requirement through the verticality keeping device of the mast during the vibroflotation hole-forming construction of the vibroflotation device, so that the vibroflotation device can perform vibroflotation on the construction stratum downwards to form vibroflotation gravel pile holes with the verticality meeting the requirement, but also enables the drill rod system to be arranged in parallel with the mast of the hoisting system through the verticality keeping device of the drill rod, so that the vibroflotation device system connected with the bottom of the drill rod system is parallel with the mast, and further enables the verticality of the vibroflotation device system to always meet the requirement under the condition that the verticality of the mast meets the requirement, so that the pile holes meeting the verticality requirement are constructed.
Wherein, exert drilling rod straightness holding device that hangs down of horizontal direction restraint power and vertical direction guiding force to drilling rod system includes: the supporting frame is connected with the drill rod system and is used for applying horizontal direction constraint force and vertical direction guide force to the connecting section of the drill rod system; and the fixed frame is respectively connected with the support frame and the mast and is used for fixing the support frame on the mast.
Specifically, the supporting frame may adopt a first structure as shown in fig. 4, and has a pair of vertical columns 303 arranged in parallel in a vertical direction, a horizontal frame 301 vertically connected to top ends of the pair of vertical columns 303 and extending to one side, and a pair of reinforcing columns 302 having two ends connected to two sides of bottom end surfaces of the pair of vertical columns 303 and the horizontal frame 301 respectively. The horizontal frame 301 is provided with a circular through hole, and the circular through hole is connected with the drill rod system connecting section 201. During design, a plurality of clamping grooves 306 extending along the vertical direction can be formed in the inner wall of the circular through hole, correspondingly, a plurality of connecting ribs 204 extending along the length extending direction of the connecting section are arranged on the outer wall of the connecting section 201 of the drill rod system, the clamping grooves 306 on the horizontal frame are connected with the connecting ribs 204 on the outer wall of the connecting section 201 in a matched mode, and the clamping grooves are in clearance fit during connection, so that the connecting section of the drill rod system can slide up and down in the through hole along the vertical direction after penetrating through the through hole. Thus, the lower part of the connection section 201 of the drill rod system penetrates through the through hole in the horizontal frame 301, the connecting rib 204 on the outer wall of the connection section is arranged in the clamping groove 306, and the horizontal direction constraint force and the vertical direction guide force are applied to the connection section through the through hole and the clamping groove in the horizontal frame 301, so that certain rigid constraint is applied to the connection part of the connection section, the drill rod system is always parallel to the mast, and the vibroflot system connected with the drill rod system is parallel to the mast. In the vibroflotation construction process of the vibroflotation system, when the verticality of the mast meets the requirement through the drill rod verticality maintaining device, the vibroflotation system can vibroflotation to manufacture the pile hole meeting the verticality requirement.
Certainly, also can set up many splice bars that extend along vertical direction at circular through-hole inner wall, fixed settling and many splice bar complex draw-in grooves (not shown in the figure) at drilling rod system linkage segment 201 outer wall, through splice bar and draw-in groove complex mode, make the horizontal stand exert certain rigidity constraining force to the linkage segment.
Furthermore, the support frame of the present invention may also adopt a second structure as shown in fig. 5, and on the basis of the first structure, the two sides of the upper surface of the horizontal frame 301 near the edges are respectively provided with a barrier 308, so as to provide safety protection for maintenance personnel when maintaining the drill rod verticality maintaining device and the drill rod system.
The horizontal bracket 301 of the present invention may be an integral structure, and further, in order to facilitate the connection and maintenance of the connection section of the drill rod system with the horizontal bracket 301, the horizontal bracket 301 may be configured to be a structure formed by two parts (as shown in fig. 4), each of the two parts has a half through hole, and the two parts are connected with the lock catch 305 through a hinge and form a complete circular through hole.
And the fixed mount 307 respectively connected with the support frame and the mast 102 is provided with a vertical connecting frame matched and connected with the mast 102, and a pair of upper connecting lugs and a pair of lower connecting lugs which are respectively fixedly connected with the upper end and the lower end of the vertical connecting frame and are vertical to the vertical connecting frame, correspondingly, the upper end and the lower end of the support frame are respectively provided with a pair of upper connecting lugs and a pair of lower connecting lugs, as shown in fig. 4, the pair of upper connecting lugs of the support frame are arranged on two sides of one end, far away from the through hole, of the horizontal frame 301, the pair of lower connecting lugs of the support frame are arranged on the pair of upright posts 303, and the upper connecting lugs and the lower connecting lugs of the support frame are respectively connected with the upper connecting lugs and the lower connecting lugs on the fixed mount 307 through the pin shaft 304, so that the support frame is connected with the fixed mount. Of course, in order to improve the connection strength between the fixing frame and the supporting frame, a plurality of connecting lugs or connecting plates can be arranged.
Compared with the vibroflotation gravel pile machine with the telescopic guide rod in the prior art, although the vibroflotation gravel pile machine with the telescopic guide rod in the prior art is provided with the annular frame on the mast, the annular frame has the function of protecting the periphery of the telescopic guide rod (a larger gap is formed between the annular frame and the maximum outer diameter of the telescopic guide rod) through the annular frame so as to prevent the telescopic guide rod and the vibroflotation device from colliding with the mast in the process of descending the telescopic guide rod and the vibroflotation device to cause the damage of components and prevent the vibroflotation device from colliding with the mast due to overlarge shaking amplitude in vibroflotation construction, so that the annular frame can not solve the problem of inclination of an ultra-deep pile hole generated by the vibroflotation device in the complex stratum construction. The drill rod verticality maintaining device is adopted to provide rigid constraint force in a horizontal plane and guiding force in a vertical direction for the connecting section of the drill rod system, so that the drill rod system and the mast can be ensured to be parallel, the verticality of the drill rod system and the vibroflot system can be ensured under the condition that the verticality of the mast is ensured, and pile holes with the verticality meeting the requirements can be constructed by vibroflot.
Further, in order to determine the position of the holding connection section according to the length of the connection section of the drill rod system, the hoisting system of the invention further arranges an adjusting cylinder 103 (shown in fig. 3) on the mast 102 for adjusting the position of the drill rod verticality maintaining device relative to the mast, wherein the piston rod of the adjusting cylinder 103 is parallel to the mast and extends vertically downwards, and the tail end of the adjusting cylinder is fixedly connected with a fixed frame 307. The vertical connecting frame of the fixing frame 307 is connected with the mast 102 in a sliding fit mode, so that the position of the fixing frame 307 on the mast is adjusted by adjusting the stretching of the oil cylinder 103, the constraint position of the drill rod verticality maintaining device on the drill rod system connecting section can be adjusted, and the vibroflot system can maintain a better verticality requirement during vibroflot.
In summary, after the vibroflotation system is aligned with the pile point to be constructed, the verticality of the vibroflotation system on the vibroflotation gravel pile machine is adjusted, so that the vibroflotation system can perform vibroflotation construction on the pile point to be constructed with the verticality meeting the requirement, and the vibroflotation construction method comprises the following steps:
s201, arranging a drill rod system and a mast of a hoisting system in parallel so that a vibroflot system connected with the bottom of the drill rod system is parallel to the mast;
in the process of lowering the drill rod system and the vibroflotation device system by using the hoisting system, the verticality of the drill rod system relative to the host is controlled so that the vibroflotation device system lowered by the drill rod system is parallel to the mast. The verticality of the drill rod system is controlled by applying a horizontal constraint force and a vertical guide force to the drill rod system.
It should be noted that the main machine of the vibroflotation gravel pile machine should be arranged on the horizontal ground, and the ground has enough bearing capacity, so that the main machine of the vibroflotation gravel pile machine can be kept horizontal, and the main machine can be kept horizontal by adopting a theodolite to assist in calibration so that the main machine is in a horizontal state and a vertical state.
Because the drill rod system comprises the connecting section, the supporting section and the working section, and the connecting section is suspended on the mast through the first steel wire rope, when horizontal restraining force and vertical guiding force are applied to the drill rod system, the restraining force is applied to the connecting section of the drill rod system. The method for applying the horizontal constraint force and the vertical guide force is a method for applying the horizontal constraint force and the vertical guide force to the connecting section through the drill rod perpendicularity maintaining device.
Exerting horizontal direction restraining force and vertical direction guiding force on the connecting section through the drill rod perpendicularity retaining device comprises the following steps:
connecting a fixing frame of the drill rod verticality maintaining device with a supporting frame through a plurality of pin shafts;
and mounting the fixed frame on the mast, and enabling the connecting section of the drill rod system to penetrate through the through hole of the support frame so as to apply horizontal constraint force and vertical guide force to the connecting section through the support frame.
When the horizontal frame of the support frame is formed by butting two parts, the lock catch can be opened, one part of the support frame, which is far away from the mast, is in an opened state relative to the other part, which is close to the mast, of the support frame, and after one part of the connection section of the drill rod system penetrates through the through hole of the support frame, the two parts are butted and locked through the lock catch, so that rigid constraint is provided for the connection section. Preferably, the connection section is restrained at a position close to the connection of the connection section and the support section.
Or, when the position of the drill rod verticality maintaining device on the mast is adjustable, the step of applying the horizontal direction restraining force and the vertical direction guiding force to the connecting section through the drill rod verticality maintaining device further comprises the following steps:
before or after the mount that links together drilling rod straightness holding device that hangs down through many round pins axle and support frame, still include:
connecting the fixed frame with a piston rod of an adjusting oil cylinder;
and controlling the piston rod of the adjusting oil cylinder to stretch according to the position required to be tightly held by the connecting section of the drill rod system, so as to adjust the vertical position of the fixing frame on the mast through the piston rod until the drill rod verticality maintaining device reaches the required position.
The drill rod system and the mast of the hoisting system can be arranged in parallel through the drill rod verticality maintaining device, so that the vibroflot system connected with the bottom of the drill rod system is parallel to the mast. When the verticality of the mast meets the requirement, the vibroflot system can perform vibroflot construction on the stratum according with the required verticality to form a pile hole.
S202, when vibroflotation construction is carried out through the vibroflotation device system, the verticality of the main machine, on which the mast is relatively positioned on the horizontal plane, meets the requirement, so that the vibroflotation device can vibroflotation downward on a construction stratum with the verticality meeting the requirement to form vibroflotation gravel pile holes
After making drilling rod system, vibroflotation ware system and hoist and mount system's mast parallel through drilling rod straightness retention device that hangs down, utilize the vibroflotation ware system to carry out vibroflotation construction to the stratum, when vibroflotation construction, need to make the mast be located the straightness that hangs down of host computer relatively on the horizontal plane and meet the requirements to vibroflotation ware with the straightness that hangs down that meets the requirements shakes downwards to the construction stratum that the degree of depth exceeds 50 meters and have the macroseism many hairlines of deep overburden and forms vibroflotation gravel pile hole, it includes the following step:
s021, when vibroflotation construction is carried out through a vibroflotation device system, detecting the verticality of the mast relative to a host positioned on a horizontal plane in real time to obtain real-time deviation data of the verticality of the mast;
carry out vibroflotation pore-creating work progress through vibroflotation device, carry out real-time detection and processing to the straightness that hangs down of mast host computer on being located the horizontal plane relatively, include: the inclination angle of the mast relative to the host is obtained by detecting the inclination angle of the mast relative to the host arranged on the horizontal plane in real time; after the inclination angle of the mast relative to the host is obtained, real-time deviation data of the perpendicularity of the mast relative to the host (the perpendicularity of the mast is simply referred to as the perpendicularity of the mast) is obtained through calculation.
After the inclination angle of the mast relative to the main machine (i.e. the included angle between the mast and the main machine) is obtained, the mast verticality deviation data can be obtained through calculation by the following method: the inclination angle detection module is used for detecting the perpendicularity of the mast in real time to obtain the inclination angle of the mast relative to the host, and then subtracting 90 degrees from the inclination angle to obtain the perpendicularity deviation value of the mast relative to the host, wherein the deviation value is the real-time deviation data of the perpendicularity of the mast. Alternatively, the following method may be used: the inclination angle detection module is used for detecting the verticality of the mast in real time to obtain the inclination angle of the mast relative to the host, then the inclination angle is subtracted by 90 degrees to obtain an absolute value of the verticality deviation value of the mast relative to the host, and the absolute value of the deviation value is real-time deviation data of the verticality of the mast.
S022, judging whether the perpendicularity of the mast needs to be adjusted or not according to the obtained real-time deviation data of the perpendicularity of the mast;
after the mast verticality real-time deviation data is obtained through calculation, whether the mast verticality needs to be adjusted is judged according to the real-time deviation data, namely, whether the deviation data is within a preset threshold interval is judged, if the deviation data exceeds the preset threshold interval, the mast verticality needs to be adjusted, and if the deviation data does not exceed the preset threshold interval, the mast verticality does not need to be adjusted.
Specifically, after real-time deviation data of the mast perpendicularity is obtained, whether the mast perpendicularity needs to be adjusted is determined through a comparison module, the obtained deviation data of the mast perpendicularity is compared with a preset threshold interval of the mast perpendicularity set in advance through the comparison module, a corresponding comparison result is obtained, and the comparison process is as follows: after real-time deviation data of the perpendicularity of the mast is obtained, whether the deviation data is within a preset threshold interval is judged; if the deviation data exceeds a preset threshold interval, the perpendicularity of the mast needs to be adjusted, and relevant information of the adjustment direction (namely the mast needs to be tilted forwards or backwards) and the size of the mast is determined; if the deviation data does not exceed the preset threshold interval, the perpendicularity of the mast does not need to be adjusted. The preset threshold interval represents a range of maximum and minimum angles at which the mast can be tilted relative to the vertical plane.
S023, if the verticality of the mast needs to be adjusted, adjusting the verticality of the mast to meet the requirement, so that the vibroflot system can vibroflot the construction stratum downwards with the verticality meeting the requirement and form vibroflot gravel pile holes.
And when the obtained comparison result indicates that the deviation data of the mast perpendicularity exceeds a preset threshold interval and the mast perpendicularity needs to be adjusted to meet the requirement, the comparison result is sent to the PLC, and the controller controls the mast angle adjusting mechanism to execute corresponding action according to the comparison result so as to adjust the mast perpendicularity and enable the mast perpendicularity to meet the requirement.
Specifically, if the perpendicularity of the mast needs to be adjusted, the controller firstly controls the vibroflotation system to stop vibroflotation construction, and lifts the vibroflotation system through the hoisting system; then, corresponding actions are executed by controlling the mast angle adjusting mechanism so as to adjust the perpendicularity of the mast to meet the requirements: the PLC controller controls the opening size and the direction of the proportional valve, so that the mast is driven by the deviation rectifying oil cylinder to deflect relative to the host machine to adjust the inclination direction and the inclination size, and the perpendicularity of the mast is within a preset threshold interval meeting the requirement. And finally, lowering the lifted vibroflotation system, and continuing vibroflotation construction on the stratum by using the vibroflotation system.
By adopting the method, the telescopic guide rod system is in rigid connection, the verticality of the telescopic guide rod system is directly ensured by a mast vertical mechanism, the verticality of the mast meets the requirement, the verticality of the drill rod system and the vibroflot in vibroflot construction which are arranged in parallel with the mast meets the requirement, and the guide rod and the vibroflot system can still keep vertical when encountering a hard layer or larger gravels. In engineering practice, the vibroflotation construction is carried out on harder strata with hole depth of over 50 meters in a strong earthquake zone, particularly on strata with larger gravels, the impact force on hard layers and gravels is kept, the verticality of pile holes is ensured, the probability of rotary digging or impact in the construction is far lower than that of the traditional method (rotary digging or hard smashing impact is hardly needed), the vibroflotation gravel pile is far superior to the traditional method in quality and work efficiency, and the uniformity and compactness of the pile diameter of the subsequently formed vibroflotation gravel pile holes and vibroflotation gravel piles are ensured, so that the vibroflotation gravel pile has good safety performance.
And S300, after the vertical pile hole is formed, automatically feeding materials into the pile hole through a loader to form the uniform and continuous vibro-replacement gravel pile meeting the verticality requirement.
After the pile hole meeting the verticality requirement is formed through the steps, hole cleaning is conducted, then stone materials are gradually thrown into the pile hole after the hole cleaning is conducted through the multiple loaders, in the process of gradually throwing the stone materials, vibration-impact encryption construction is conducted on the stone materials thrown into the pile hole through a vibration-impact device system of the vibration-impact stone crushing pile machine, and the vibration-impact stone crushing pile with the continuous uniform pile diameter meeting the requirement is formed through all sections of pile bodies after the encryption treatment from bottom to top.
In order to realize automatic feeding and dynamic real-time weight metering of stones and remotely monitor feeding conditions in the process of throwing stones into pile holes by a loader, a vibroflotation construction management system in a remote central control room and all loaders 700 on a construction site are networked in the same local area network through wireless AP equipment 800 (as shown in figures 19 and 21), and a wireless signal transceiver is arranged on each loader and is in wireless connection with a host of the vibroflotation construction management system in the remote central control room. Through the programming of an ARM single chip microcomputer or a PLC of a vibroflotation construction management system, the empty load weight information of all loaders, the weighing information and the position information of stones thrown in each bucket and the like are inquired and received in a remote polling mode (as shown in figure 20). The weighing information of different states of each loader is directly read from the loader without conversion errors. Through the judgment of the marks, the weight accumulation is carried out on all loader data meeting the distance requirement (as shown in fig. 22), and the flag bit is set for the accumulated loaders to prevent repeated accumulation, so that the multiple loaders can carry out the weight accumulation of loading on the same pile hole.
Specifically, as shown in fig. 13, the remote vibroflotation construction management system acquires, in a polling manner, first weight information when a plurality of loaders load stone to be thrown and position information of the plurality of loaders; then, according to the obtained position information of the plurality of loaders, controlling the loaders in the pile hole feeding area to sequentially feed the loaded stones into the pile holes, and obtaining second weight information of each loader after feeding the stones; and finally, according to the obtained first weight information and the second weight information of each loader, obtaining the weight of the stone thrown into the pile hole by each bucket of each loader, and accumulating the weight of the stone thrown into the same pile hole by a plurality of loaders to obtain the total weight of the stone thrown into the same pile hole by the plurality of loaders.
In order to obtain the position and the number information of the loader, each loader is provided with a positioning element for positioning the loader and an identity identification element for marking the identity (such as the number) of the loader, and the positioning element and the identity identification element can adopt the prior art and are not described again. And the position information and the serial number information of each loader can be sent to a remote vibroflotation construction management system.
In order to directly read the weighing information under different states from the loader to avoid conversion errors, the invention is characterized in that a detection element capable of detecting the weight of the loader under different states is arranged on the loader, the detection element is used for calibrating the unloaded weight of the loader under the unloaded state without stone, and then the first weight information and the second weight information after the stone is loaded and the stone is unloaded are obtained according to the calibrated unloaded weight detection.
During implementation, a position switch can be installed on the loader, and the weight of the loader is detected through the height of the position switch: firstly, taking the original height of a position switch of a loader in an idle load state without stone as a reference, calibrating the weight of a hydraulic system in the loader by using a standard weight, and sending the calibrated idle load weight information of the idle load loader to a controller (such as a PLC controller) of a remote vibroflotation construction management system; after the loader is loaded with stones, recording first weight information G1 displayed by a hydraulic system in the loader at a corresponding height by taking the height of a position switch when the loader is loaded with stones fully as a reference, and sending the first weight information G1 to a remote controller; and after the loader puts the building stones into the pile hole, recording second weight information G2 displayed by a hydraulic system in the loader at a corresponding height by taking the height of the position switch after the building stones are put as a reference, and sending the second weight information G2 to the remote controller. The remote controller obtains the weight G of the stone thrown into the pile hole by each loader (G2-G2) through the obtained first weight information G1 and the second weight information G2 of each loader, and then accumulates the weight of the single-bucket thrown materials thrown into the same pile hole by each loader to obtain the total weight of the stone thrown into the same pile hole by a plurality of loaders. The corresponding weight information of the position switch at different heights can be tabulated in advance and input into the remote vibroflotation construction management system. The corresponding relation between the position and the weight of the position switch is obtained through tests, namely before formal construction, the tests are firstly carried out on site, and the controller analyzes and determines the corresponding relation between the height of the position switch and the weight of stone materials contained in the loader through a large amount of data obtained through the tests.
Or, a special pressure taking module (such as a pressure sensor) can be installed on the flange of the inlet and outlet of the main push oil cylinder of the loader through a high-strength bolt, the pressure taking module is used for detecting the oil pressure difference of the inlet and outlet of the main push oil cylinder at a fixed position when the loader is in different states, the corresponding oil pressure difference which is in linear relation with the load weight of the loader is obtained through nonlinear calibration, so that the oil pressure of the main push oil cylinder is obtained, and corresponding weight information is obtained through the oil pressure. Correspondingly, the weight information corresponding to different oil pressure differences can be tabulated in advance and input into the remote vibroflotation construction management system. The corresponding relation between different oil pressure differences and the weight is obtained through tests, namely before formal construction, the tests are firstly carried out on site, and the controller analyzes a large amount of data obtained through the tests to determine the corresponding relation between the oil pressure differences and the weight.
Wherein, according to the loader position information who obtains, the control is located the loader that the stake hole throws the material region and puts in the stake downthehole including with the building stones that load:
after the position information of the loader is obtained, the position information is compared with the position information of the pile hole;
if the distance between the position of the loader and the position of the pile hole is smaller than or equal to a preset value, the loader is positioned in a feeding area of the pile hole and can feed the loaded stone into the pile hole;
if the distance between the position of the loader and the position of the pile hole is larger than the preset value, the loader is not located in the feeding area of the pile hole, and the loader is guided to move towards the pile hole through a positioning guide system until the loader is located in the feeding area of the pile hole.
The invention utilizes the Beidou positioning system equipped with the loader to set the accumulation switch, namely when the distance between the loader and the opening of the pile hole is less than or equal to 5m obtained by the positioning element (such as a Beidou positioning antenna) arranged in the cab of the loader, the loader is judged to be positioned in the feeding area of the pile hole, and the stone unloaded by the loader is fed into the pile hole, thereby avoiding multiple marks and missing marks of the stone fed into a single pile hole.
In conclusion, the weight of the stone is measured by the loader and transmitted to the remote vibroflotation construction management system in real time, so that the loading weight of the loader is remotely monitored in real time, automatic matching between the loader and the pile holes is realized through position comparison, the pile hole in which the stone unloaded by the loader is put is determined, multiple marks and missing marks of the stone in the same pile hole are effectively avoided, and dynamic real-time automatic measurement of the stone is ensured. By the method, the fed stones are automatically fed into the pile hole while being vibrated and compacted by the vibroflotation gravel pile machine, so that a continuous, compact vibroflotation gravel pile meeting the verticality requirement can be formed, the vibroflotation gravel pile can form a good vertical drainage channel in a strong earthquake stratum, the drainage distance of hyperstatic pore water in the stratum is greatly reduced, the accelerated dissipation of the pore water pressure by multiple times or even ten times is realized, the vital effect on controlling or inhibiting the rise of the hyperstatic pore water pressure is realized, and the earthquake liquefaction resistance and the earthquake resistant effect of the composite foundation are fundamentally improved.
Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can modify the principle of the present invention, and thus, various modifications made in accordance with the principle of the present invention should be understood to fall within the scope of the present invention.
Claims (10)
1. A method for hole forming and feeding of a vibroflotation gravel pile machine is characterized by comprising the following steps:
automatically guiding the vibroflotation gravel pile machine and aligning a vibroflotation device system to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine;
after the vibroflot system automatically aligns to a pile point to be constructed, the vibroflot system performs vibroflot downwards on the stratum of the pile point to be constructed according to the verticality requirement to form a vertical pile hole;
after the vertical pile hole is formed, automatically feeding materials into the pile hole through a loader to form the uniform and continuous vibro-replacement gravel pile meeting the verticality requirement.
2. The method of claim 1, wherein after forming the pile hole meeting the verticality requirement, automatically feeding material into the pile hole by a loader comprises:
after pile holes meeting the verticality requirement are formed, acquiring first weight information of a plurality of loaders when stones are loaded and position information of the loaders in a polling mode;
controlling the loaders in the pile hole feeding area to sequentially feed the loaded stone materials into the pile holes according to the obtained position information of the multiple loaders, and obtaining second weight information of the loaders after the stone materials are fed;
and obtaining the weight of the stone thrown into the pile hole by each bucket of each loader according to the obtained first weight information and the second weight information of each loader, and accumulating the weight of the stone thrown into the pile hole by the multiple loaders to obtain the total weight of the stone thrown into the pile hole by the multiple loaders.
3. A method according to claim 2, further comprising the step of weight calibrating the unloaded loader before obtaining the first weight information of the loader when loaded with stone.
4. The method of claim 1, automatically guiding the vibro-replacement stone pile machine and aligning the vibro-replacement system thereof with the pile point to be constructed according to the pile point to be constructed and the latitude and longitude information of the vibro-replacement stone pile machine comprises:
automatically guiding the vibroflotation gravel pile machine to the pile point to be constructed according to the pile point to be constructed and the longitude and latitude information of the vibroflotation gravel pile machine;
after the vibroflotation gravel pile machine is automatically guided to the pile point to be constructed, the vibroflotation device system on the vibroflotation gravel pile machine is aligned to the pile point to be constructed.
5. The method of claim 4, aligning a vibroflot system on a vibroflot pile driver with a pile point to be constructed comprising:
acquiring the position relation between a positioning antenna and a vibroflotation system on the vibroflotation gravel pile machine so as to acquire the real-time position information of the vibroflotation system according to the real-time position information of the positioning antenna;
comparing the real-time position information of the vibroflotation system with the position information of the pile point to be constructed to obtain the distance information between the vibroflotation system and the pile point to be constructed;
and aligning a vibroflot system on the vibroflot stone pile machine to a pile point to be constructed according to the acquired distance information.
6. The method as claimed in claim 5, wherein obtaining the positional relationship between the positioning antenna and the vibroflot system on the vibroflot pile machine comprises the step of initially positioning the positioning antenna and the vibroflot system on the vibroflot pile machine by a positioning device, respectively.
7. The method of claim 1, vibroflot of the subterranean formation of the site to be constructed with a desired verticality by a vibroflot system comprises the step of positioning the drill pipe system of the vibroflot pile machine parallel to the mast of the hoisting system, so that the vibroflot system connected to the bottom of the drill pipe system is parallel to the mast.
8. The method of claim 7, positioning the drill pipe system parallel to a mast of the hoist system such that the vibroflot system coupled to the bottom of the drill pipe system is parallel to the mast comprises:
in the process of lowering the drill rod system and the vibroflotation device system by using the hoisting system, the verticality of the drill rod system relative to the host is controlled so that the vibroflotation device system lowered by the drill rod system is parallel to the mast.
9. The method according to claim 7 or 8, wherein vibroflot system vibroflot of the formation of the pile point to be constructed downwards with a desired verticality further comprises the step of real-time detection and adjustment of the verticality of the mast with respect to the host machine on the horizontal plane during vibroflot construction by the vibroflot system, so that the verticality of the mast is in accordance with the desired verticality.
10. A method according to claim 2 or 3, characterized in that the weight calibration of an empty loader comprises the step of mounting a detection element on the loader.
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|---|---|---|---|
| CN202110921364.3A CN115704218A (en) | 2021-08-11 | 2021-08-11 | Method for hole forming and feeding of vibroflotation gravel pile machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921364.3A CN115704218A (en) | 2021-08-11 | 2021-08-11 | Method for hole forming and feeding of vibroflotation gravel pile machine |
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| CN115704218A true CN115704218A (en) | 2023-02-17 |
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| CN202110921364.3A Pending CN115704218A (en) | 2021-08-11 | 2021-08-11 | Method for hole forming and feeding of vibroflotation gravel pile machine |
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| CN (1) | CN115704218A (en) |
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- 2021-08-11 CN CN202110921364.3A patent/CN115704218A/en active Pending
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