Thuyết trình tiếng anh cơ khí DHGTVT tphcm

TIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNGTIẾNG ANH CHUYÊN NGÀNH CƠ KHÍ MÁY XÂY DỰNG

BÀI THUYẾT TRÌNH MƠN HỌC TIẾNG ANH CHUN NGÀNH MÁY XÂY DỰNG PILE HAMMERS Nhóm thực hiện: PILE HAMMERS video vocabulary: Special frame:/speisl freim/:giá búa Pile hammer:/pail ‘hᴂmə/:búa đóng cọc Pile puller:/pail ‘pulə/:búa nhổ cọc Striker:/‛staikə/:đầu búa đóng cọc Cast rammer:/kɑ:st ‛rᴂmə/:búa đúc Reeve (v):/ri:v/:luồn, buộc chặt cách luồn qua Sheave (n):/ʃi:v/:puli Winch(n):/wint/:tời Mechanical hammer:/mi‛kᴂnikəl ‛hᴂmə/:búa máy Pile head:/pail hed/:đầu cọc Rod(n):/rɔd/:cần air-steam hammer:/eə sti:m ‛hᴂmə/:búa Pile frame:/pail freim/:dàn,khung cọc Driving frame:/‛draiviƞ freim/:dàn,gía đóng cọc Vibration hammer:/vai‛breiʃn ‛hᴂmə/:búa rung Blow (n):/blou/:nhát búa 6/why are mechanical hammers rarely used at present? Because machalnical hammers are of a low productivity 7-Is steam distributed manually by turning the valve? Yes, it is when steam or compressed air is admitted into the space under the piston the cylinder goes up 8/when dose the cylinder go up? 9/what will hahpen when the valve is switched over to discharge the steam or air into the atmosphere? The cylinder drops,striking the pile 10/what are the advantages of double-action hammers? Double-action hamers have a heigher productivity and smaller dimentions II-Fill in the blank with appropriate words in the box Deliver Steam Impact Resistance Double-action Vibration Rope Compressed air Drive Subdivided Internal-combustion Pile hammers On Not only 1/this equipment is used to to improve its bearing capacity piles into soil in order 2/ piles are driven in by means of pile hammers II-Fill in the blank with appropriate words in the box Deliver Not only Steam Impact Resistance Double-action On Vibration Rope Compressed air Drive Subdivided Internal-combustion Pile hammers 3/depending the kind of drive pile hammers are into groups -mechanical-actuated by a winch and a _ -air steam-operated by the principle or engines -vibration hammer and drivers wich utilize vibration as a means of decreasing the soil II-Fill in the blank with appropriate words in the box Deliver Not only Steam Impact Double-action On Vibration Compressed air Drive Internal-combustion Pile hammers Resistance Rope Subdivided 4/there are single-action and hammers 5/in single action hammers.the on a pile is delivered by the weight of the striking part,which is raised by or compressed air 6/in double action hammers the energy of steam or compressed air is utilized to raise the striking part but also to a blow   MATCHING ACTIVITY 1.Special frame 2.Old piles a A cast iron body which serves as a steam cylinder and a hammer b Consists of a cast hammer suspended on a rope that is reeved around a sheave at the top of the driving frame 3.A single-action air-steam hammer c Are superior to single-action types in that they have a higher productivity and smaller dimensions 4.Double-action hammer d Employed to set up a pile hammer,direct its striker,and to place and hold the pile during driving 5.A mechanical hammer e.Extracted from the soil by pile pullers MULTIPLE CHOICE QUESTION Old piles are extracted from the soil by _ a Pile hammers b.pile pullers c.Mechanical hammers d.double action hammers The steam distributing device is a _plug valve a.one-way b.two-way c three-way d.four-way MULTIPLE CHOICE QUESTION 3. _are employed to set up a pile hammer a Sheeve b.winch c Special frame d Pile frame 4. _ is a cast iron body which servers as a steam cylinder and hammer a A mechanical hammer b.air-steam hammer c A single-action air -steam hammer d Double-action air hammers MULTIPLE CHOICE QUESTION Hammers with a control are also used a automatic b Semi-automatic c manually d digital Are the following statements true or false ? If false,say why? 1.Pile driving hammer is used for the foundation of these contruction 2.Pile hammer used to extract old piles from the soil ( Pile Puller ) 3.Double- action hammers is a cast iron body which serves as a steam cylinder and a hammer (A single-action air – steam hammer) The shortcoming of single action hammer is big rate of blows (up to 40 per minute) ( Small ) 5.Double-action hammers are superior to single – action types in that they have a higher productivity and smaller dimensions ... nhánh Hơi phân phối cách vặn van tay Khi nước khơng khí nạp vào phần khơng gian phía đẩy xi lanh lên Van mở xả khí nước ngồi khí làm cho xi lanh xuống tạo lực The small rate of blows (up to 40... piston with a rod  Búa máy có suất thấp sử dụng  Búa đơn động khối sắt đúc sử dụng xi lanh nước búa Xy lanh cấu tạo gồm pittông cần The steam distributing device is a three way plug valve Steam... by pile pullers Giá búa sử dụng để đặt búa đóng cọc, dẫn hướng đầu búa đưa vào nơi đóng giữ q trình cọc đóng (không sử dụng giá búa cho búa rung hệ thống dẫn động) Các cọc cũ rút lên khỏi mặt