¾®Ï﹤³Ì-µÚËÄÕÂÏïµÀ¶ÏÃæÉè¼Æ - ͼÎÄ ÏÂÔر¾ÎÄ

¢æÈ·¶¨ÏïµÀ¹°¸ßh0

°ëÔ²¹°ÐÎÏïµÀ¹°¸ßh0=3600/2=1800mm¡£°ëÔ²¹°°ë¾¶R=1800mm¢çÈ·¶¨ÏïµÀ±Ú¸ßh3

1£®°´¼ÜÏßµç»ú³µµ¼µç¹­×ÓÒªÇóÈ·¶¨h3Óɱí3-8ÖаëÔ²¹°ÐÎÏïµÀ¹°¸ß¹«Ê½µÃh3?h4?hc?(R?n)?(K?b1)22ʽÖÐh4¡ª¡ª¹ìÃæÆðµç»ú³µ¼ÜÏ߸߶ȣ¬°´¡¶Ãº¿ó°²È«¹æ³Ì¡·È¡h4=2000mm£»hc¡ª¡ªµÀ´²×ܸ߶ȡ£²é±í3-5Ñ¡24kg/m¸Ö¹ì£¬ÔÙ²é±í3-7µÃhc=360mm£¬µÀ²ê¸ß¶Èhb=200mm£»n¡ª¡ªµ¼µç¹­×Ӿ๰±Ú°²È«¼ä¾à£¬È¡n=300mm£»K¡ª¡ªµ¼µç¹­×Ó¿í¶ÈÖ®°ë£¬K=718/2=359£¬È¡K=360mm£»b1¡ª¡ª¹ìµÀÖÐÏßÓëÏïµÀÖÐÏß¼ä¾à£¬b1=B/2£­a1=3600/2£­930=870mm¡£22h?2000?360?(1800?300)?(360?870)?15023¹ÊmmÖйú¿óÒµ´óѧ½¨Öþ¹¤³ÌѧԺ2.°´¹ÜµÀ×°ÉèÒªÇóÈ·¶¨h3h3?h5?h7?hb?R?(K??m?D/2?b2)22ʽÖÐh5¡ª¡ªÔüÃæÖÁ¹Ü×ӵ׸߶ȣ¬°´¡¶Ãº¿ó°²È«¹æ³Ì¡·È¡h5=1800mm£»h7¡ª¡ª¹Ü×ÓÐüµõ¼þ×ܸ߶ȣ¬È¡È¡h7=900mm£»m¡ª¡ªµ¼µç¹­×Ó¾à¹Ü×Ó¼ä¾à£¬È¡m=300mm£»D¡ª¡ªÑ¹Æø¹Ü·¨À¼ÅÌÖ±¾¶£¬D=335mm£»b2¡ª¡ª¹ìµÀÖÐÏßÓëÏïµÀÖÐÏß¼ä¾à£¬b2=B/2£­C1=3600/2£­1370=430mm¡£¹Êh3?1800?900?200?1800?(360?300?335/2?430)?1613mm 22Öйú¿óÒµ´óѧ½¨Öþ¹¤³ÌѧԺ

3£®°´ÈËÐи߶ÈÒªÇóÈ·¶¨h3h3?1800?hb?°ãÈ¡j=100mm¡£¹ÊR?(R?j)22ʽÖÐj¡ª¡ª¾à±Új´¦µÄÏïµÀÓÐЧ¸ß¶È²»Ð¡ÓÚ1800mm¡£j¡Ý100mm£¬Ò»mm¡£h3?1800?200?1800?(1800?200)?117522×ÛÉϼÆË㣬²¢¿¼ÂÇÒ»¶¨µÄÓàÁ¿¡¢È·¶¨±¾ÏïµÀ±Ú¸ßΪh3=1800mm¡£ÔòÏïµÀ¾»¸ß¶ÈH=h3£­hb+h0=1800£­200+1800=3400mm¡£Öйú¿óÒµ´óѧ½¨Öþ¹¤³ÌѧԺ

¢èÈ·¶¨ÏïµÀ¾»¶ÏÃæ»ýSºÍ¾»Öܳ¤PÓɱí3-8µÃ¾»¶ÏÃæ»ýS?B(0.39B?h2)ʽÖÐh2¡ªµÀ²êÃæÒÔÉÏÏïµÀ±Ú¸ß£¬h2=h3£­hb=1800£­200=1600mm¹ÊS?3600(0.39?3600?1600)=10814400mm2=10.8m2¾»Öܳ¤P=2.57B+2h2=2.57¡Á3600+2¡Á1600=12500mm=12.5m¢éÓ÷çËÙУºËÏïµÀ¾»¶ÏÃæ»ýÓÃʽ£¨3-6£©Ð£ºË£º²é±í3-4£¬Öªvmax=8m/s£»¡¶ÃºÌ¿¹¤ÒµÉè¼Æ¹æ·¶¡·vmax=6m/s£¬È¡vmax=6m/s¡£ÒÑ֪ͨ¹ý´óÏï·çÁ¿Q=28m3/s£¬´úÈëʽ£¨3-9£©µÃQ28v???2.56?6?8m/sS10.8Éè¼ÆµÄ´óÏï¶ÏÃæ»ý£¬·çËÙû³¬¹ý¹æ¶¨£¬¿ÉÒÔʹÓá£Öйú¿óÒµ´óѧ½¨Öþ¹¤³ÌѧԺ