��ܛ��̼ӽ�̎��еđ��

��r�g��2008-07-28 08:59 ��Դ�� : �U�҂� ��G�� x��1745

1 ǰ��

��ܛ��ػ��l��µ�ƽԭ��,��̓��εĘ��H�c��I(y��)��ˇ�o��P��Ҍ��ҪӰ�,��͇��̔��OӋ��,��һ��M��ϣ��^�ߣ��^��,��Թ�(ji��)ʡ��ռ��,��^(q��)��e��,��,��ڇ��^�ߕr��_��̷�(w��n)��,��׃��,��̔��¶�ͨ��^��˕r,��^�ɵ�׷��̸߶Ȅݱ��ɇ��ռ�ش��,��Ķ�Ӱ��ݡ�

��,��̹��̽��O�r��Ӈ��߅��¶�,��sС��ռ�أ��,��˕r,��鱣�C��̷�(w��n)��ȫҪ�󣬱�횲�ȡ��ʩ��M�мӹ�̎��,��ڸ��N��̼ӹ̷��,��żӹ�ܛ��̣��ʩ��,��Y(ji��)��w��^��,��S�^��׃�ζ��ʧ��(w��n)��ԽY(ji��)��ڷ��BĤ��O,��ҿ��^�õȃ�(y��u)�c��ڹ��̑��^��ձ�,��

��żӹ�̎��ܛ��ػ��һ�N��,��(j��ng)��õķ��,��ԓ��g�ڇ��⑪��ʼ��20��o60��,��ֱ��80��ű��u��҇��̑��,��ĸ��(j��)��̹��̵��c��ԏ��ˇ��̼ӹ̺��ܳ��F(xi��n)��Ɖ��ʽ,��(j��)��U��żӽ�̎��ܛ��ػ��OӋ��,��ԓ��Ҹ��̇��OӋ�У��Mһ��(y��u)��ˇ��̔��,��Ч��,��

2 ܛ��l��¼ӽ��Ɖ��ʽ

ܛ��Ȼ��ˮ��󡢿�϶�ȴ�,��s�Ը�,��B͸�Ե͡��d��͵��|(zh��)��e��,��Ҫ��,��|(zh��)��̿�M�ɡ��ܛ��ػ��׮a(ch��n)��ػ�ʧ��(w��n),��^��Ȇ��},��˱�횲�ȡ�ӹ̴�ʩ�M��̎��ǰ��ӽ�C��Ļ��A��,��x��m�ć��̼ӹ��ʽ,��б�Ҫ��ܛ��l��¼ӽ��̵��Ɖ��ʽ�M��ԏጡ�

�ͱ��F(xi��n)��ʽ��,��ϸ��d��,��ܛ��ػ��ͼӽ��w��໥��ÿ��ܮa(ch��n)��Ɖ��ʽ��پֲ��ƣ�ָ��ӽ��a(ch��n)��ֲ��,��D1-a,��w��ӣ�ָ��ܛ��ײ��l(f��)��wʧ��(w��n),��D1-b,��ܛ��D��ܛ��ػ��ֲ��d��,��_̎��ܛ��(c��)��D��Ɖ�,��D1-c��^��,��ָ�ں��d��ں��L��®a(ch��n)��ĳ��,��D1-d��

�D 1 �ӽ��̵��Ɖ��ʽ

3 ܛ��̼ӽ�Ӌ�㷽��

ᘌ�ܛ��ӽ��̿��ܳ��F(xi��n)��Ɖ��ʽ,��Ҫ��¾ֲ��ƺ͇��w��ӃɷN�Ɖ��ʽ�M��Ӌ��,��

3.1��¾ֲ��

��D1-a��ʾ��ٶ��®a(ch��n)��ֲ��ƕr,��w��(c��)��ȫ��ųГ�,��w��Ŀ��,��˕r��w��Ea,��ڽ�ď��T,��ڻ��ƽ�⣬�ÿ��ȫϵ��(sh��)��

ʽ�У�Ka��ϵ��(sh��),��γsg��w�c��֮�g�Ľ��Ħ��,��ι��w�L�ȣ�H�黬��w�߶�,��

��M�㷀(w��n)��ȫϵ��(sh��)Ҫ��r��ͨ��r��,��ֲ��ư�ȫϵ��(sh��)Ks≥2��(j��)�˿��OӋ��żӽ��L�ȣ�

3.2��w��

��؞��͵��r,��ɲ��ĈA��ӗl�ַ��M��Ӌ��,��ԇ��]�мӽ��ϕr��Σ�U��ٶ��ӽ�󻬻��λ�ò�׃,��Ҽ��O��Įa(ch��n)��ˮƽ��,��ஔ��˿��أ��(j��)��,��Ӌ��Σ�U��B(t��i)�µĿ��(w��n)��ȫϵ��(sh��),��

��w��(w��n)��Ӌ��ԣ��С��ȫϵ��(sh��)�Ʌ��ա��̷��OӋҎ(gu��)��GB50286-98��ȡֵ,��^��Ҫ�ć��̿�ȡKs≥1.3,��

4 ��̌��

��Ҹ��е�̎�L��ϰ��Kʡ��(n��i)��xַλ�ھ��Ҹ��Ѕ^(q��)�s45km�Ę��(zh��n)�|ɳ�|�M��,��M��ַ̎��L��ɱ��|�D(zhu��n)��̎�ϰ�,��L��ޛ_�eƽԭ��؄��_�ƽ̹,��ò��Ԫ��L��ߺ��,��ȫ��ͬF(xi��n)��e���؅^(q��)��L�s500m,��s400m,��S��߳�һ��2.5m��
��(j��)��ؿ��,��M��30m��ȷ��(n��i)�،��,��|(zh��)ճ��|(zh��)ճ��,��ɰ�|(zh��)��,��ɰ�Ƚ��e�M�ɣ��|(zh��)ճ��ܛ��,��ӵػ��d��100kPa��,��ڌ��|(zh��)��|(zh��)ճ��-1��|(zh��)��|(zh��)ճ��A��ɰ,��-3��|(zh��)��|(zh��)ճ��A��ɰ,��ތ��|(zh��)��|(zh��)ճ��|(zh��)��|(zh��)ճ��ܛ��A��,��Ӻ�Ȳ�һ,��d��80kPa��¡��M��ط��(n��i)�ֲ��Ҫ��Wָ��ʾ,��

��1 ��Ҫ��Wָ��

��(j��)��I(y��)��ˇҪ��,��M��^(q��)��ݣ��̸߶�5.5m��S��߳�8.0m��,��^(q��)һ��(c��)�¶�1:2.��(c��)�¶�1:1,��(j��ng)��(w��n)��ȡ�ӽ�̎��,��ܝM�㿹��(w��n)��Ҫ��,��ˣ��OӋ��żӹ̇��,��Ņ��(sh��)��±�,��

��2 ��żӽ��r

���Ӌ�㹤�r�飬��w��픘˸�(8.0m)��,��1:3��¶��K��34m��ڵ��31.5m,��ڵ��26m��ǰ��Ӌ�㷽��żӽ��ć��M�з�(w��n)��u�r,��Ӌ��Ç��̿��(w��n)��С��ȫϵ��(sh��)k=1.37,��Ҏ(gu��)��Ҫ��Ks=1.3)��֪��ȡ��żӹ̺��̝M�㷀(w��n)��Ҫ��,��

5 �Y(ji��)Փ

��(j��)ܛ��l��̹��̵��c,��żӽ�ܛ��̿��ܳ��F(xi��n)��Ɖ��ʽ��(j��)��U��ܛ��̼ӽ��OӋ��,��ԓ��ĳ��̓��OӋ��,��Y(ji��)��żӹ̺�,��^��߅�l��̝M�㿹��(w��n)��Ҫ��,��żӹ�ܛ��̿ɿsС��̔��棬��(ji��)�s��ռ��,��Ч��,��@��Ľ�(j��ng)��Ч��Ч�档

��īI��

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�Դ��ע�e�`��ַ��ĺϷ��,��Ո��߳֙��C��c��W(w��ng)(li��n)ϵ,��҂��r��h��,��x�x,��